ML20155G054

Preliminary Rept on Status of IGSCC in SG Tube U-Bends

ML20155G054
Person / Time
Site:	Diablo Canyon
Issue date:	04/30/1984
From:	PACIFIC GAS & ELECTRIC CO.
To:
Shared Package
ML20155F799	List: ML20155F795 ML20155F930 ML20155G054
References
FOIA-97-488 NUDOCS 9811060196
Download: ML20155G054 (80)

Text

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l REPORT ON THE STATUS OF INTERGRANULAR STRESS CORROSION CRACKING IN STEAM GENERATOR TUBE U-BENDS l

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l Pacific Gas and Electric Company Diablo Canyon Units 1 and 2 Docket Numbers 50-275 and 50-323 April,1984 9811060196 981103  ;

PDR FOIA WILLIAM 97-488 PDR

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Page I. INTRODUCTION 1-1 II. HISTORICAL REVIEW A. Summary of Problem 2-1 B. Operating Experience 2-7 III.

SUMMARY

OF RESEARCH A. Stress Corrosion Studies 3-1

1. Effect of Temperature 3-2

2. Effect of Stress 3-2

3. Effect of Materials Characteristics 3-3 B.- Trojan Tube Analyses 3-6 C. Stress Measurement 3-8 D. Crack Theory and Propagation 3-10 E. Nondestructive Examination 3-12 F. Potential Mitigating Actions 3-14

1. Tube Plugging 3-14

2. In-situ Heat Treatment 3-15

3. Other Potential Mitigating Actions 3-16 1

0191M/0164P-2

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. CONTENTS ' ' ' ~ " .. (

i hd.a,ihidd[/lY (Continued)

Page ,

1 G. Leak Before Break 3-18 I H. Future Research 3-20 I. Roll Transition Zone 3-22 IV. DIABLO CANYON TUBE FABRICATION HISTORY A. Remarks on Mill Heat Treatment 4-1 B. Diablo Canyon Tube Fabrication Dates and Heat Treatments 4-1 i

V. PG&E PROGRAM FOR SHORT RADIUS U-BENDS A. b..Jestructive Examination 5-1 l B. Leak Monitoring 5-4 ,

C. Evaluation of Mitigating Actions 5-4  ;

I D. Secondary Water Chemistry 5-5 l 1

VI. CONCLUSION 6-1 REFERENCES 7-1 APPENDIX A A-1 Project Description - RPS303 l

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0191M/0164P-3

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• List of Figures Page

1. Schematic Diagram of Steam Generator 2-4 l

2. Typical U-tube _ Geometry and Nomenclatu're 2-5

3. Intergranular Stress Corrosion Cracking 2-6 i

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PRFi!MiiURY List of Tables  ;

Page

1. Summary of U-Bend Leaks in Steam Generators 2-8

2. Sununary of U-Bend Eddy Current Indicators 2-9

3. Operating Years Prior to Leakage 2-10 l 4 _ Reported Leak Rates 2-11

5. Tubing Identification 4-3 l

l iv 0191M/0164P-5

E!EUMiNARY I. INTRODUCTION Nuclear power plants have experienced several types of corrosion. One type of corrosion which has appeared in pressurized water reactor plants is primary side cracking in steam generator small radius tube U-bends. This cracking has been identified as intergranular stress corrosion cracking (IGSCC). It has appeared in several plants and in some cases has resulted in primary-to-secondary leaks. Safety Evaluation Report Supplement No. 9 (1) raised the question of the particular susceptibility of the steam generator row one U-bends at Diablo Canyon to the early onset of cracking and also of possible preventive plugging of these tubes. Since that Supplement was issued, there have been few new cases of U-bend cracking, the observed leak rates have continued to be low, and research has demonstrated that cracked tubes will leak rather than break. This report will review the cracking which has occurred at other plants, discuss the research which has been conducted with regard to this cracking, describe the PGandE tubes and program, and conclude that preventive plugging of the row one tubes is not justified technically and is not required by any safety consideration.

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II. HISTORICAL REVIEW RlE!NG A. SUMARY OF PROBLEM The earliest reported instance of steam generator row one tube U-bends (smallest bend radius) leakage (1971) was at Obrigheim. Efforts to determine the cause were unsuccessful. The earliest reported instances of primary side cracking in steam generator row one tube U-bends (1976) have been attributed to denting. In these cases, examinations of row one U-tubes which were removed from severely dented steam generators revealed that cracking occurred at the apex region due to stresses induced by movement of the tube legs as denting distorted the tube support plates. This was observed at Surry Units 1 and 2 and Turkey Point 4. In the case of Surry Unit 2, an apex crack caused a tube rupture which resulted in a major primary to secondary leak (80-140 GPM). This is the only known domestic corrosion-related U-bend tube break and was associated with severe denting. Apex cracks have been observed also in foreign plants. These have been attributed to a manufacturing problem by a foreign tube supplier.

In addition to row one apex cracking, cracking initiated on the primary side and on the secondary side has been observed at dented intersections in tube support plates due to stresses induced in the tubes as denting distorted them. It has been demonstrated that denting can be controlled by careful attention to the secondary system water quality and the number of incidents of tube cracking induced by denting have decreased.

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0191M/0164P-7 I l

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, i't. u :.a a n d The majority of subsequent primary side U-bend cracking which has occurred in steam generators has not been induced by denting. In nearly all cases, the cracks have been associated with row one tubing and in most cases the crack initiation occurred in the straight leg to bend transition region. This region also is referred to as the tangent point although strictly speaking it i is a section of the tube. The row one tubes of some steam generators were bent with an internal mandrel. Some instances of cracking are associated with tubes which exhibit a smooth transition into the U-bend on one leg and an irregular transition on the opposite leg as a result of this method of bending. In this situation, the cracks tend to occur in the extrados (outer) side of the irregular transition, to be oriented axially, and to be of limited l ength. The smooth and irregular transitions have no consistent orientation in the steam generators and cracking has been observed in irregular transition regions in both hot and cold legs. In all cases where the cracks developed through wall, the resulting leak rates were characterized as low and stable.

Domestic plants which have exhibited bend transition zone cracking include Trojan, Surry Unit 2, Zion Unit 1, Cook Unit 2, North Anna Unit 1, and Farley Unit 1. Foreign plants also have reported bend transition zone cracking:

Takahama Unit 1, Ringhals Unit 2, Doel Unit 2, and possibly Fessenheim Unit 1.

1 Figure 1 is a schematic view of a steam generator and shows the location of the row one tube U-bend. Figure 2 gives the typical geometry of a row one U-bend. Figure 3 shows a tube crack in the U-bend region which has progressed through the tube wall.

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. P1.hlG.Y 1

1 Primary side cracking has been reported in several European and Japanese  !

plants in the roll transition zone between the expanded and unexpanded portions of the tubing within the tubesheet. There has been no reported primary side leakage in this area in any domestic plant. The tubes in the Diablo Canyon sttam generators have been field expanded by the Wextex  !

explosive method to eliminate the crevices above the factory tube roll.

Trojan, Beaver Valley Unit 1, Salem Units 1 and 2, Farley Unit 1, North Anna l

Units 1 and 2, and Sequoyah Unit 1, have had a similar modification and all are operating with no reported roll transition zone cracking.

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I MOISTURE I SEPARATORS ROW 1 U BEND g l INCONEL 600 TUBING S

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PRIMARY COOLANT FLOW (HOT LEG SIDE) DIVIDER PLATE Figure 1 Schematic Diagram of Steam Generator 2-4

PREi.!MMRY e l TYPICAL SMALL U-SEND DIMENSIONS 0 - 2.19" j b - o.5875" l l

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LJ TUBE AND U-SEND GEOMETRY Figure 2 Typical U-tube Geometry and Nomenclature 2-5

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Figure 3 Intergranular stress corrosion cracking.

This section is from the bend transition region' of a tube with a through-wall crack removed from a steam generator at Trojan.

2-6

PRELIM 3ARY B. OPERATING EXPERIENCE The data available relative to steam generator tube U-bend leaks and indications is sumarized in the following tables. There is at present no authoritative compilation of this information and the available sources are not entirely consistent. There is, however, enough data to give a reasonable description of primary side U-bend cracking. This data is presented as a list of plants which have reported leaking tubes (Table 1), a list of plants which have reported eddy current indications (Table 2), a summary of operating years prior to reported leakage (Table 3), and a table of reported leak rates (Table 4). It is evident from these tables that leaks are relatively rare, they take a long time to develop, and, with two exceptions, the leak rates are low. Both exceptions are known to have had unusually high tube stresses from specific causes: Surry Unit 2 from support plate deformation caused by denting, Doel Unit 2 from excessive ovality. The Doel tubes are of European manufacture.

2-7 0191M/0164P-13

Pile.MINARY TABLE 1

SUMMARY

OF U-BEND LEAKS IN STEAM GENERATORS Years Number Startup Date of To Leakage Leaking Plant Year Leakage Leak Location Tubes Comments Bugey 2 1979 1982 3 more than one Cook 2 1978 1980 2 Tangent 3 Doel 2 1975 1979 4 Apex 1 Significant tube ovality due to manufacturing.

Farley 1 1977 1978-79 1 Tangent 1 1980 3 Tangent 2 1981 4 3 North Anna 1 1978 1979 1 Tangent 2 Attributed to resin intrusion.

Obrigheim 1969 1971 2 5 Neither the cause of 1972 3 3 these leaks nor why 1973 4 3 they are all in the 1974 5 1 #2 steam generator 1979 10 1 has been reported.

These tubes are of foreign manufacture.

Ohi 1 1979 1981 2 Tangent 1 Ringhals 2 1975 1979 4 Tangent 2 1980 5 Tangent 1 Surry 2 1973 1980 3 Apex 1 Extensive denting with support plate hour glassing.

Trojan 1975 1978 3 Tangent 1 1979 4 Tangent 5 i 1980 5 Tangent 7  ;

1981 6 Tangent 6 j l

Zion 1 1973 1980-82 7-9 After shutdown, 23 )

tubes were found to i leak helium.

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?RELDhRY TABLE 2 SlM4ARY OF U-BEND EDDY CURRENT INDICATIONS PLANT YEAR OF INSPECTION LOCATION NO. OF TU3ES BUGEY 2 1983 Tangent Small number i COOK 1 1983 Tangent 3 COOK 2 1980, 1981, 1982, 1983 Tangent 20 FARLEY 1 1978, 1980, 1981 Tangent S KORI 1 1981 Tangent 2 j NORTH ANNA 1 1979 Tangent 2 OHI 1 1981 Tangent 26 Row 2 2 PRAIRIE ISLAND 1 1981 Row 2 1 RINGHALS 2 1979, 1980 Tangent 2 TAKAHAMA 1 1977, 1978, 1980 Tangent 91 TROJAN 1978, 1979, 1980, 1981 Tangent 33 ZION 1 1981, 1982 Tangent 32 Row 2 22 e

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. PREl.lH1RY TABLE 3 OPERATING YEARS PRIOR TO LEAKAGE (NUMBER OF UNIT 5) 1 YEAR 2 YEARS 3 YEARS 4 YEARS 5 YEARS 6 YEARS 7 YEARS 10 YEARS 2 3 5 5 3 1 1 1 1

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TABLE 4 ,

REPORTED LEAK RATES PLANT DATE MAXIMUM LEAK RATE (gpm) NO. OF LEAKS Cook 2 10/80 0.01 1 Doel 2 6/79 150 1 Farley 8/78 3.006 1 l

6/80 0.11 1 North Anna 1 9/79 0.007 2 Ringhals 2 4/79 0.55 1 Surry 2 9/76 140 1 Trojan 3/78 0.001 1 10/79 0.10 5 1/81 0.21 4 Zion 1 3/82 0.48* 23 (by helium) l

• Tnis leakage started in 1980 as 0.0035 gpm in two steam generators and involved four steam generators at the time of the outage.

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PREllM!!ildy III.

SUMMARY

OF RESEARCH l

A. STRESS CORROSION STUDIES i

Analysis of the primary side initiated cracking indicates that the most probable failure mechanism is Coriou-type intergranular s?rass corrosion cracking (IGSCC). The details of the mechanism are not yet completely understood, but laboratory testing and steam generator failure analyses have i identified the following parameters as being significant: (1) tube material l

characteristics (chemistry, microstructure and mechanical properties), (2) temperature, (3) tensile hoop stresses at the crack locations (I.D. surfaces at U-bend apex, opposite side bend transition, and roll expansion transition). The influence of primary water chemistry is not clear since Coriou cracking has been observed in susceptible materials in deaerated deionized water containing essentially no impurities. It is known that there is a strong influence of electrochemical potential upon the stress corrosion cracking characteristics of Alloy 600 and thus impurities in the primary water may have an effect on Coriou cracking insofar as they influence the electrochemical potential of the tube surface. It has been found in the laboratory that primary water is less agressive in cracking Alloy 600 than pure water.

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0191M/0164P-18

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1. Effect of Temperature l

l The effect of temperature upon the stress corrosion cracking mechanism is l great. Laboratory studies conducted over the temperature range of 600*F to 700*F indicate that the crack initiation rate is 2 to 3 times faster for each 10*F rise in temperature. Althougn in theory a reduction of the primary hot l 1eg temperature could be considered as a corrective measure, the magnitude of l l

the benefit is not well defined and thus it is not possible to quantify the gain with respect to the economic loss resulting from a reduction in plant i

power and operating flexibility.

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2. Effect of Stress I i

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! The effect of stress is known to be a major factor in stress corrosion l

cracking. It has been demonstrated that a tensile surface stress is necersary l to cause Alloy 600 to crack in water. Currently, it is not known if there is

. a threshold stress associated with the cracking process. Laboratory testing has shown that crack initiation time decreases rapidly with increasing tensile stress for stress values approaching the yield-stress. In the case of steam generator tube materials, the stresses would be the combination of operating pressure, thermal expansion, residual fabrication stresses and any stresses l

resulting from deformation by denting. The stress analyses performed on the Trojan steam generator tubes revealed the presence of axially oriented residual tensile stresses which would favor circumferential cracking rather than the observed axial cracking. Calculations have been perfomed to l estimate the magnitude of circumferential stresses in the U-bend transition i region. The pressure-induced stresses and through-wall thermal gradient i

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stresses appear to be relatively uniform around the tube circumference.

{ Bending moments on the U-bend due- to differential thermal expansion of the hot and cold legs produce stresses that vary both circumferential1y and through

- the wall thickness.

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3. The Effect of Material Characteristics 1

i The influence of the Alloy 600 material characteristics upon stress corrosion l

cracking susceptibility has been difficult to quantify. Laboratory studies j have shown great variability in the performance of Alloy 600 samples tested r

i under apparently identical conditions. The differences are observed most i

{ frequently in samples taken from different heat treatment conditions, mill

, processing conditions or melt chemistries, but variations have been observed 1

i between apparently identical samples cut from a single plate or tube. )

j Similarly, the Trojan steam generator tubing evaluation was unable to establish a definite correlation of cracking susceptibility with carbide  !

j_ distribution in the microstructure, grain size, or minor element alloy 4

I chemistries. Although cracks were observed in some of the Trojan tubes, there 4

were many uncracked tubes from the same heats as tubes with cracks. An overall review of the stress corrosion cracking experience has shown that certain sets of tubes appear to be more susceptible to cracking than others.

An analysis of the mechanical properties of the Alloy 600 heats involved with cracking at Trojan compared to the average properties of all Alloy 600 tubing used in similar steam generators indicates that the Trojan tubes had only slightly higher yield strengths (58.6 ksi 3 55.2 ksi) and hardness values (87.6 RB 3 85.7 g ) than the average properties.

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PREUMiMRY 4

The effect of mill processing upon the susceptibility of Alloy 600 to stress corrosion cracking has been studied with respect to both basic mill production techniques and post fabrication heat treatments. In the case of mill

} production practice, much of the Alloy 600 tubing manufactured for the early ,

l 1

steam generators was given a relatively low temperature final stil anneal I 4 (1750*F) which produced a microstructure consisting of a fine grain size and carbides which were distributed throughout the grains rather than in the grain i

j boundaries. The purpose for such a process was to improve mechanical i properties and to avoid sensitization by removing the carbides from the grain a

boundaries. The resulting material also exhibited higher yield strengths (greater than 55 ksi) due to fine grain size associated with the 1750*F l annealing temperature. Materials produced with higher final annealing temperatures (greater than 1800*F) exhibit carbides in the grain boundaries

and have a lower yield strength (due to coarser grain size) than the material I 4

l 1 annealed at lower temperatures. Laboratory testing has shown the lower i

temperature material to be much more susceptible to stress corrosion cracking than the material annealed at higher temperatures. Since the presence of carbides in the grain boundaries appeared to improve stress corrosion cracking resistance, a number of studies have been conducted to investigate the effect of post fabrication thermal treatments. These thermal treatments were performed in the temperature regime of maximum carbide precipitation.

Laboratory testing revealed that significant improvements in stre3s corrosion cracking resistance could be realized by developing a semi-continuouc grain boundary precipitate. Based upon extensive testing, Westinghouse has esteolished a 15 hour1.736111e-4 days <br />0.00417 hours <br />2.480159e-5 weeks <br />5.7075e-6 months <br /> at 1300*F thermal treatment which produces a semi-continuous distribution of carbides in the grain boundaries without a chromium depleted zone adjacent to the grain boundaries.

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PflE.MNIRY The final annealing operation has been shown to have a strong influence on the success of P.e thermal treatment. If the temperature during the annealing operation is too low, insufficient carbon is dissolved to permit grain boundary precipitation during the subsequent thermal treatment. Conversely if the final annealing temperature is too high, too much carbon will be dissolved and there is a possibility of a grain boundary chromium depleted zone being present following the thermal treatment. Although the mechanism of the improvement in stress corrosion cracking resistance due to thermal treatment is unknown at this time, the benefical effect is significant and thus the use of thermally treated Alloy 600 tubing has been incorporated into new steam generator designs.

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?REllWINARY .

B. TROJAN TUBE ANALYSIS l The Trojan steam generator U-bend tubes have been subjected to extensive evaluation by both Westinghouse and Battelle Northwest Laboratories. A total of 29 tubes (26 tubes from row one and 3 tubes from row two) were removed for destructive laboratory testing. The U-bend transition regions of the tubes were characterized by a smooth transition at one leg and well-defined intrados and extrados transitions at the other (opposite) leg. (Refer to Figure 2.)

The intrados transition was approximately 0.6 inches below the extrados transition. Three of the row one tubes were observed to have several branched cracks in the extrados of the opposite transition. The irregular transitions found on the opposite side are believed to be a result of the use of an internal ball mandrel during the bending operation. The occurrence of slightly deformed tubing wall regions in the transition regions indicates that local residual fabrication stresses are present. Since prior observations of primary side IGSCC all have occurred at locations where relatively high stresses were expected, it is suspected that the residual stresses are contributing to the IGSCC. During the investigation of the Trojan tubes-a number of row one tubes were characterized as having a well-defined opposite transition without any evidence of IGSCC defects. For comparison, a number of row one tubes from other steam generators were evaluated with respect to transition geometry and the presence of IGSCC. Tubes taken from Turkey Point Unit 4 and Surry Unit 1 exhibited smooth transitions on both sides of the U-bend region and no cracking was found. Tubes taken from Surry Unit 2 exhibited irregular transitions similar to those of Trojan. One of the four Surry Unit 2 tubes had primary side-branched cracks at the same location as the Trojan tubes. No consistent relationship could be established between 3-6 0191M/0164P-23

j cracking at Trojan and ovality, carbide distribution, grain size, or alloy chemistries.

Meta 11ography of the cracked Trojan tubes indicated the presence of shallow intergranular cracks in the vicinity of the major cracks. These were axially oriented and exhibited evidence of degradation of the oxide on the crack surface. The frequency of the shallow cracks varied around the circumference of the irregular transition containing major cracks. The axial orientation of the major cracks in the tubes could have resulted from circumferential tensile stresses occurring on the primary side surfaces at the crack initiation sites. The presence of such cfreun'erential stresses has not been confirmed by laboratory surface resic J stress measurements. In the case of the Trojan steam generator, hoop tensile stresses of 20 to 30 ksi have been calculated to result from the differential thermal expansion between hot and cold legs.

Another stress contribution arises from bending moments due to support plate contact. The leg separation distances for the Trojan U-bend tubes were observed to change by as much as 80 mils when the tubes were removed from the support plates. Calculations have shown that circumferential tensile stresses from such leg deflections would exceed 40 ksi (2). However, leg deflection did not correlate with U-bend transition cracking.

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PRhMURY C. STRESS MEASUREMENT Stress is required, by definition, for IGSCC to occur. It has been observed in the laboratory that the time to failure increases significantly when the stress level is lowered (3). Laboratory data for constant stress tests in pure water suggests that time to failure by IGSCC of Alloy 600 may be inversely proportional to stress to the fourth power (4). Cracking has been experienced in locations where stress concentrations exist: U-bends, roll transition zones, and where tubes have been distorted by denting. It has been stated that all primary side Alloy 600 events have occurred at locations where relatively high stresses were expected and that the stress states in U-bends are complex and unpredictable (2).

Efforts have been made to measure the local residual stresses where cracking has occurred or might be expected to occur. Methods used to measure residual stress include stress relief by sectioning, stress relief by layer removal, chemical testing, and x-ray diffraction. These methods average local stresses, and the stress measurements have not been as helpful in understanding IGSCC as one would wish. The reasons for this are that stress is only one of the conditions required for cracking, operating stresses are not measured, most of the methods are cumbersome and time-consuming so that there are few data, the data are not consistent, and the methods cannot measure stress in the small areas of interest (on the order of grain size).

EPRI has under way a program to develop an automated method of residual stress measurement by x-ray diffraction which is faster than existing techniques.

l This program has achieved marked reductions in the size of equipment and 3-8 0191M/0164P-25

' flELilVillytmI iffh/]}f exposure time and has indicated that both level of local residual stress and j local residual stress gradients are higher than have been found by previous techniques. However, it still is not possible to measure stress in tubes in a steam generator or to measure stresses on the inside of a tube without cutting the tube, i

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i, D. CRACK THEORY AND PROPAGATION STUDIES One theory of the steam generator primary side IGSCC process is that metal dissolution and/or hydrogen embrittlement are responsible. The suggested mechanism is repeated local film rupture followed by metal dissolution. This theory appears to be consistent with the observations that have been made. If it is correct, the damage begins when strain is transferred from the base metal to the more brittle protective film, which suggests that strain rate is a key par ~neter controlling the rate of IGSCC damage (7). If the number of l

plant start-ups, shutdowns, and load changes, i.e., a low service factor, is i associated with the progress of cracking, as seems to be the case at Trojan, it would be in agreement with the suggested significance of strain rate and film rupture.

In the laboratory, it has been observed that the initiation time of cracking decreases in the presence of hydrogen.

It has been suggested that sulfur may embrittle the grain boundaries at the bottom of the crack (3). Auger spectroscopy of a section of a crack from a tube removed from a Trojan steam generator showed low nickel values in the crack surface, implying selective leaching of nickel by the solution in the crack (2).

Some investigation has been made into crack propagation velocities.

Yelocities calculated from crack lengths observed in the laboratory and in tubes from Trojan indicate that propagation of crack lengths is on the order of one mil per day, i

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PRELIMINAllY There is some indication that crack propagation follows a semilogarithmic Arrhenius relationship with temperature (4). This will be a very useful insight if it can be substantiated.

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E. NONDESTRUCTIVE EXAMINATION (NDE) i a

i The EPRI 3 team Generator Owners Group (SGOG) has been conducting U-bend eddy f curre".' NDE research. The most recent report (8) describes three new probe det

• and initial testing results.

4 i 1. Differential Bobbin Coil Beaded Flex Projh l

. This 0.650-inch diameter probe is made by Zetec. The probe was used in the l- laboratory to examine U-bends with manufactured defects. Frequencies used were 100 KHz absolute and 100 KHz differential. Analysis of the laboratory i

data indicate that 60% through-wall defects are readily detectable. With i careful review of the data, through-wall defects of 40% can be detected if the l aspect ratio (length divided by depth) is greater than ten.

2. Series Configuration, Pancake Coil Array Probe This probe has surface-riding, spring-loaded pancake coils arranged in an array for full circumferential coverage of the tube wall . The individual pancake coils are wired in series, requiring only three coil leads. This probe has been used for a limited amount of laboratory testing. This testing -

has shown that the probe can detect 40% through-wall defects reliably with considerably better signal-to-noise ratio than the bobbin coil probe. This testing also has shown that this probe is not applicable to field use because it is not reliable mechanically. This probe is being redesigned to provide j

greater mechanical reliability.

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! 3. Multiplexed Configuration, Pancake Coil Array Probe This probe also has surface-riding, spring-loaded pancake coils arranged in an array. Multiplexing is used to allow all eight pancake coils to have independent signals. This probe has not been tested extensively; however, it is expected to produce an improved signal-to-noise ratio over the series configuration probe. The potential disadvantages are decreased mechanical reliability and more complicated signal process instrumentation.

)

In addition to the-three probes that the EPRI SGOG is examining, the French )

i and Japanese are developing probes to improve examination of short radius )

i U-bends.

Improvements in steam generator NDE in recent years include remote probe positioning devices. There are at least two manipulator-type positioners and two finger-walker positioners on the market. The advantages of these positioners include computer-controlled tube selection and reduction of radiation exposure to NDE workers.

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PRElbiWIRY F. POTENTIAL MITIGATING ACTIONS

1. Tube Plugging The most straight-forward means of mitigating the consequences of tube cracking is to plug the cracked tubes. The Technical Specifications require that a tube be removed from service by plugging if there is an indication that it contains a defect, which is defined as an imperfection 40% of the tube wall thickness in depth.

The steam generator manufacturer has developed a mechanical tube plug which can be inserted remotely and can be removed without damage to the tube if a more satisfactory means of mitigation or repair is developed in the future.

These plugs would be installed directly by a three-man crew if a small number  !

- 1 of tubes were to be plugged._ A robot is being developed and has been used which can install a large number of tube plugs if that should become necessary.

Some rows of short radius U-bend tubes have been plugged as a preventive measure by other utilities for either regulatory or operational reasons.

Because it is not possible presently to predict the susceptibility to cracking of a given group of tubes, it is not advisable technically to plug tube rows preventively unless they have shown a propensity to crack in service.

Otherwise, heat transfer surface which would not develop cracks may be removed from service unnecessarily.

3-14 0191M/0164P-31

?RELIMMR1

2. In-situ Heat Treatment Heat treatment of tubes presently in service for steam generators has been suggested as a prospective method for achieving improved resistance to IGSCC (2, 6, and others). It is known that heat treatment at 700*C (1292*F) can improve the IGSCC resistance of Alloy 600 in the laboratory (5) or at least delay the initiation of cracking for the period of the test (3). These laboratory heat treatments required time periods from 1 to 100 hours0.00116 days <br />0.0278 hours <br />1.653439e-4 weeks <br />3.805e-5 months <br />, which is impractical for the field treatment of installed tubes. Short time period (2-1/2 to 7 minutes) thermal treatments have been performed in the laboratory which produced desirable semi-continuous grain boundary carbide precipitate.

However, these involved higher temperatures (1740*F to 1840*F) which are not practical for field treatment.

It is now considered that stress relief, but not the thermal treatments just l 1

described, can be achieved in existing steam generators. A temperature of 1300*F or 700*C (1292*F) has been suggested for on-site stress relief heat treatment. Experimental evidence indicates that temperatures up to 1450*F can be reached and controlled in U-bends by the use of electrical resistance heaters. There was no significant sensitization or distortion of the bend:

The only known stress relief of tubes in a steam generator in a power plant was performed at Doel 2 in Belgium. Fifteen tube sleeves in the tube sheet ,

region were stress relieved by induction heating to 1250*F. This was considered to show that in-situ stress relief is practical. However, it is not directly applicable to U-bends because the asymmetry of the bends makes them unsuitable for induction heating.

3-15 0191M/01649 17 _.

rRELilVill1MitI Stress relief of tubes in an existing steam generator is subject to several restraints. First, the time must be long enough and the temperature must be high enough to reduce the residual stresses significantly and to increase resistance to stress corrosion cracking. Second, time should be short enough so that the tubes do not become sensitized. Third, the temperature should be low enough so that recrystallization and grain growth is avoided. If these three requirements are combined, a time-temperature region remains from approximately 0.5 to 5 minutes and 1200 to 1500 F. Furthermore, the heating element must be placed so that the entire U-bend is relieved but the temperature of the top tube support plate is kept as low as is feasible.

Yielding or extension of existing cracks may be caused if the support plate is heated excessively. It is not expected that this will be a problem, but it has been recommended that any proposed stress relief procedure be demonstrated on a mockup before it is used on an actual steam generator.

3. Other Potential Mitigating Actions The EPRI SG0G II research program RPS303 (described in Section III.H.) is designed to identify candidate remedial actions based upon findings from the laboratory studies. Several potential corrective actions may be studied, including:

(1 ) Lowering reactor coolant system temperatures to inhibit the onset of cracking; (2) Orificing first row tubes to minimize flow and heat flux and thus lower the temperature of the U-bend; 3-10 0191M/0164P-33

• • • • =

PRELEURY

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(3) Shot-peening of the inner surface of the U-bend to create residua.1 compressive stresses rather' than residual tensile stresses; and (4) Changing the reactor coolant system water chemistry, if research shows this to be a factor.

In addition to the EPRI SGOG research, the nuclear steam supply system vendors are developing methods of stress-relieving sections of tubes, means of sleeving straight sections of tubes, and remote methods of inspecting and of plugging defective tubes.

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. 0191M/0164P-34

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. PRELMINARY -

G. LEAK BEFORE BREAX Investigations including tests have been conducted to explore the safety inplications of the observed U-bend cracking. The possible concern, from the safety viewpoint, is that tube degradation may lead to a burst or broken tube or tubes and result in a substantial primary to secondary leak rate and a consequent release of radioactivity. The investigations show that U-bend cracking will not lead to a broken tube and is not a safety concern.

Tests have shown that through-wall cracks of the geometry which has been observed will leak at a rate in proportion to their length. A crack of this type that is one-half inch long can be expected to leak at about 0.35 gpm in service. This rate is the Tech Spec limit (500 gallons per day) for one steam generator and can be detected readily by existing monitoring methods. (See Section V.B below which describes the PGandE leak monitoring program.)

Experience shows that U-bend leaks develop slowly and leak at low and slowly increasing rates. Therefore, the capability exists to detect a cracked tube which begins to leak and there would be time to respond to the leak.

The critical crack length which would lead to a tube break or rupture has been l investigated. All the leaking U-bends from tubes which have been examined have been found to have cracked axially. Analysis supported by test data shows that the critical length of a crack of this type, even in the event of a main steam line break accident (the most demanding postulated accident with regard to steam generator tubes), is greater than one-half inch in length and would leak at greater than 0.35 gpm.

3-18 0191M/0164P-35

1 i

i Since the crack size which can be detected and would be corrected is smaller than the crack size which could lead to a tube rupture, even under the worst conditions, tube cracking is not a safety concern. The investigations that have been described were conducted for straight tube sections. The applicability of this work to the U-bend sections has been investigated also.

High tube hoop stresses contribute to the axial cracking which is observed. l These stresses would tend to open any crack, increasing the expected leak i i rate, so the crack length-leak rate data for straight sections are conservative for U-bends.

Since Alloy 600 work hardens when cold worked, both the yield strength and the ultimate strength of the U-bend are higher than those of the straight sections of the same tube. (These are the tube properties pertinent to resisting the membrane stresses which might lead to tube rupture.) This has been confirmed by tests which have shown higher burst pressures for U-bend than for straight sections. Thus both the leak rate and the burst pressure information developed for straight sections are applicable to and conservative for U-bends and it is concluded that tubes with cracked U-bends will leak before they would break.

3-19 0191W0164P-36

PRELM ERY H. FUTURE RESEARCH Research funded by the EPP.I Steam Generator Owners Group II is continuing in the area of cracking in steam generator tubing in primary water. This program is identified as RPS303 and $4.2 million will be expended through 1986. The program consists of four major tasks:

(1 ) Data Evaluation and Mechanism Definition - This entails review of leak experience and related operating chemistry. Removed tubes will be examined and stress patterns evaluated. Safety issues will be assessed.

(2) Evaluation of Causes - U-bends will be evaluated for geometry, residual stresses, and susceptibility to cracking. Laboratory tests will I recreate cracking to evaluate acceleration techniques and separate effects of variables.

(3) Evaluation of Remedial Actions - The candidate remedial actions will be identified and application techniques developed. Corrective actions will be tested for effectiveness and techniques will be qualified with model boilers.

1 (4) Implementation of Selected Remedies - Procedures will be developed for field application of techniques developed in Task 3 above. A candidate steam generator in the field will be identified. The corrective action will be accomplished on that steam generator and the effectiveness will be evaluated.

3-20 0191M/0164P-37

i PRELM NARY l A portion of this research is under way or has been completed. Approximately

$1 million of the $4.2 million has been expended. Completion of the research and data correlation in 1986 will complement the existing research. This will allow the SGOG to evaluate primary water cracking and potential remedial actions in a more comprehensive manner.

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l The project description for RPS303 is attached as Appendix A. i i

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. PRELMNARY I. ROLL TRANSITION ZONE The German experience with tube cracking on the primary side in the roll transition zone (in steam generator tubesheets) which was reported in 1975 has been investigated and has been attributed to the roller expansion design. The 9

design included a series of three expansion zones along each tube in the tubesheet. A stress analysis revealed that high residual tensile stresses were present on the tube I.D. surface in the transition zone between the expanded and non-expanded regions. Further investigation of the tube primary side surface revealed the presence of a general intergrannular attack over the entire surface. This attack has been attributed to a final pickling process

, used during tubing fabrication process. It is believed that severe roller expansion, the corroded surface, and poor water chemistry control contributed to the IGSCC in the roll transition zone.

More recent cracking in the roll transition zone has been reported by the French, particularly at Fessenheim and Bugey. Most, but not all, cracking was on the primary side. They have observed both circumferential and longitudinal cracking. They believe that residual stresses from tube expansion and thermal stresses from the thermal gradient across the sludge on the tube sheet contributed to the cracking.

The Japanese have reported that seven plants have experienced primary side roll transition zone cracks. Preliminary information indicates that approximately 400 tubes were plugged as a result of roll transition zone cracks in 1982-1983. Both partial and fully rolled joints were involved in these cases. The Japanese have developed both the sleeving and plugging countermeasures to control the problem. No instances of roll expansion zone cracking have been reported in U.S. domestic plants.

3-22

t PRELIMINARY IV. DIABLO CANYON TUBE FABRICATION HISTORY A. REMARKS ON MILL HEAT TREATMENT

)

At one time it was thought that the susceptability of steam generator, row one tube U-bends to IGSCC could be established by correlation with the time period in which the tubes were fabricated. This idea was based on the observation that the first cases of U-bend cracking seemed to be from one fabrication time period and on the knowledge that manufacturers' heat treatments had been varied at different time periods. It is generally agreed that susceptible material properties are one of the conditions required for IGSCC and that heat treatment affects material properties. However, the direct correlation with year of manufacture has proved to be an oversimplification. Many tubes from l

the " susceptible" time period are giving satisfactory service and some tubes from the " unsusceptible" time periods have suffered cracking.

1 B. DIABLO CANYON TUBE FABRICATION DATES AND HEAT TREATMENTS Table 5 identifies the Alloy 600 tubing contained in the eight steam generators of Unit 1 and Unit 2. Six of the eight steam generators contain tubing fabricated at the Westinghouse Specialty Metals Division, from billets provided by Huntington Alloys. Two steam generators in Unit 1 contain tubing fabricated entirely by Huntington Alloys.

4-1 0191M/0164P-40

e

l. PREJERY  !

The set number listed is a chronological designation for Westinghouse fabricated tubing; a set is a complete inventory of tubing for one steam generator bundle. Each set contains tubing from a number of heats, i.e.,

individual melts.

Unit 1: Set Number 10 was fabricated in June,1969.

Set Number 11 was fabricated in July,1969.

l In this period, the mill anneal furnace temperature was approximately 1800*F. The actual tube temperature was lower, on the order of 1700*F. The mill anneal temperature of the Huntington Alloy tubing is not known, but the tube temperature was judged to be 1750*F or higher.

l l Unit 2: All the sets were fabricated in 1971 and 1972. In thic period, i

the mill anneal furnace temperature was approximately 1875'F, which would I. ave resulted in a tube temperature greater than 1750*F. The tubing in Rows 1 and 2 in the four steam generators of Unit 2 contained tubing from a number of sets.

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l. PREll11My l TABLE 5 l

TUBING IDENTIFICATION l Diablo Canyon Unit 1 l i )

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Steam Generator Year of Steam Number Tube Manufacturer Set Number Generator Manufacture PGGT 1041 (1-1) Westinghouse 10 1970 1

PGGT 1042 (1-2) Westinghouse 11 1970 l PGGT 1043 (1-3) Huntington Alloys n/a 1970 l PGGT 1044 (1-4) Huntington Alloys n/a 1970 l

Diablo Canyon Unit 2 i

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PEGT 1161 (2-1) Westinghouse 47, 50, 58, 62 1972  ;

PEGT 1162 (2-2) Westinghouse 37, 58, 59, 60 1972 61, 62, 63 PEGT 1163 (2-3) Westinghouse 06-R-51, 07-R-51 1972 63, 64 PEGT 1164 (2-4) Westinghouse 06-5-51, 07-R-51 1972 36, 49, 58, 59, 63, 64, 65, 66 4-3 0191M/0164P-42

_ _ _ . _ . _ _ _ . _ _ _ . _ _ .~._ ...___._ _._

PRELMNARY V. PGandE PROGRAM FOR SHORT RADIUS U-BENDS The PGandE program for preventing leakage in steam generator short radius U-bends includes four components: an extensive nondestructive examination program, leak monitoring, evaluation of stress corrosion cracking mitigation measures, and a water chemistry control program (which will minimize the likelihood of tube stresses caused by denting on the secondary side in the steam generators).

i A. NONDESTRUCTIVE EXAMINATION PGandE intends to use the EPRI Steam Generator Owners Group guidelines for nondestructive examination and the Diablo Canyon T3chnical Specifications as a l basis for steam generator inspection. Recommendations that relate to the j examination of short radius U-bends and PGandE's specific actions are:

(1 ) Perform a baseline inspection of all steam generators Preservice inspection (PSI) baseline examinations have been performed twice on the Diablo Canyon Power Plant steam generators. The first PSI was a single frequency examination in 1975 and 1976. A second PSI was performed late in 1982 to take advantage of advances in eddy current equipment and processes to provide an additional baseline. This PSI utilized Zetec multifrequency eddy current equipment and included all tubes in both units. Supplemental examination of most tubes in rows one and two of both units was performed using a probe designed by Zetec 5-1 0191M/0164P-43

PREllMIMRY l specifically for short radius U-bend examination. This probe provided j the best available examination at the time of the PSI. No defects were 1

identified.

1 (2) Provide protected storage for tapes, stripcharts, and forms containing NDE data and analysis. All data are on permanent file. l l

(3) Inspect all steam generators during each planned steam generator outage, i The Technical Specifications require the inspection of two steam generators during the first outage, inspection of the other two steam l generators in the second outage, and the inspection of one steam generator in each outage thereafter. PGandE intends to inspect all four steam generators during each outage.

(4) Choose instrumentation and ISI vendors based on expected data quality and experience.

PGandE will select only ISI vendors with experienced and qualified analysts. PGandE nondestructive examination personnel independently will review all data from short radius U-bend examinations.

(5) Choose the sample of tubes to inspect on the basis of operating history in the unit to be inspected and similar units.

5-2 0191M/0164P-44

l PGandE intends to use the EPRI SGOG guidelines as a basis for selecting tubes for examination. The guidelines suggest examination of all row .

one and two tubes during each ISI in addition to the examinations required by the Technical Specifications.

(6) Analyze all data collected; document all degradation and anomalous signals.

Data will be reviewed carefully by ISI contractors and by qualified PGandE personnel. All degradation and anomalous signals will be documented.

(7) Choose probe designs, instrument settings, and signal interpretation methods that are appropriate for the steam generator design and suspected damage.

As probe. design evolves, PGandE will continue to evaluate the new designs and will use the most appropriate probes during future examinations.

(8) Take corrective actions to prevent damage progression.

If damage is detected, PGandE will evaluate the damage to determine causes and potential corrective actions. PGandE will carry out appropriate corrective actiors.

5-3 0191M/0164P-45

l .

. PREI. MIN;i6 l B. LEAK MONITORING Primary-to-secondary leakage will be indicated in two ways at Diablo Canyon. 1 l

(1) Radiation is detected at the air ejector discharge, main steam line, steam '

l generator blowdown, or elsewhere in the secondary system. All radiation

! monitors have alarms. (2) A reactor coolant system water balance will be performed at least twice each day. When a leak is indicated, the leaking l steam generator is determined by comparing the activity in all four steam )

generator blowdown lines. The leak rate is determined utilizing flow rates and results from radiochemical analyses of the reactor coolant and steam generator blowdown. This leak rate determination is assisted by a computer program. The minimum detectable leak rate is dependent on reactor coolant activity, but will be below the 0.35 gpm Technical Specification limit. )1 The Diablo Canyon Power Plant procedures that govern this process are EP OP-38, STP R-10, CAP D-15, and CAP F-11.

C. EVALUATION OF MITIGATING ACTIONS l PGandE continues to monitor research in this field and is an active participant in the EPRI Steam Generator Owners Group. Current l

investigations include three methods of in-situ stress relieving, orificing row one tubes, and lowering reactor coolant temperatures.

Other reseafch that may lead to mitigating measures include studies to measure reactor coolant corrosion potential and chemistry. Should the i

Diablo Canyon U-bends prove to be susceptible to cracking, all available f mitigating actions, including tube plugging, will be evaluated for l

applicability.

5-4 0191M/0164P-46

l L D. SECONDARY WATER CHEMISTRY CONTROL PROGRAM PGandE has developed an extensive water chemistry control program designed to minimize corrosion of the secondary side of the Diablo Canyon steam generators. Particular emphasis will be on control of dissolved oxygen and chloride, which are primary contributors to denting. An inleakage reduction program, including the use of helium leak detection equipment, has been developed to minimize air and seawater inleakage. Removal of all copper alloys from the secondary cycle also is being evaluated. Control of denting is important to the prevention of steam generator short radius tube U-bend apex leaks because the only domestic tube U-bend rupture was induced by deformation resulting f.~om denting.

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l VI. CONCLUSION Some nuclear plants have experienced cracking in steam generator row one tube U-bends. Although there have been relatively few tubes involved, there ha:

been a great deal of research undertaken to investigate these and related stress corrosion problems. It has been established that the problem in the U-bend area is intergranular stress corrosion cracking (IGSCC). It is known that IGSCC has no single or simple cause but results from a combination of susceptible material, environment, and tensile stress.

Although the conditions necessary for IGSCC to occur are present in some steam generator row one tube U-bends, the number of cases where such cracking has occurred is small. Those tubes which leaked as a result of cracking in the row one U-bends have done so at a slow rate: the time to leakage has varied from one to nine years after being placed in service. Those which leak do so at a slow rate: the leak rates reported vary from 0.001 gpm to 0.55 gpm and average about 0.02 gpm. (The row one U-bend apex leak at Surry 2 had a higher leak rate but was associated with severe denting.)

At the present state of knowledge, it is difficult to determine which tubes are most susceptible to IGSCC, and it is not possible to predict that susceptible tubes will crack in service. Therefore, it is not possible to plug those tubes preventively which may leak in the future without plugging a large number of tubes which otherwise may continue to provide satisfactory service.

6-1 Ol91M/0164P-48

1 PREL Mit1Ry Relatively few row (,e tubes crack at the U-bend, leakage occurs after the elapse of time, and the leaks that result are small and detectable. PGandE concludes that there is no safety-related reason for preoperational plugging of row one tubes in the Otablo Canyon steam generators.

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. PRELMMRy l REFERENCES l (1 ) NUREG-0675 Supplement No. 9, " Safety Evaluation Report related to the operation of Diablo Canyon Nuclear Power Station Units 1 and 2," June 1980. Refer to paragraph 5.2.7.3.

l (2) A.B. Johnson, Jr., Et A1., " Primary Water-Initiated IGSCC of In-600 Steam Generator Tubes-Metallurgical Analysis," Corrosion Forum Sponsored by National Association of Corrosion Engineers, March 1982.

(3) J. Blanchet, H. Coriou, Et Al. " Historical Review of the Principal l Research Concerning the Phenomena of Cracking of Nickel Base Alloys,"

Stress Corrosion Cracking and Hydrogen Embrittlement of Iron Base Alloys l

l National Association of Corrosion Engineers 1977.

(4) T.S. Bulischeck and D. Van Rooyen "Effect of Environmental Variables on j the Stress Corrosion Cracking of Inconel 600 Steam Generator Tubing,"

Nuclear Technology, November 1981.

(5) M. Kowaka Et Al. "Effect of Heat Treatment on the Susceptibility to Stress Corrosion Cracking of Alloy 600," Nuclear Technology, November 1981 l

(6) Evaluation of Steam Generator U-Bend Tubes From the Trojan Nuclear Power t

Plant, EPRI NP-2629-LD, September 1982 l

7-1 0191M/0164P-50 t - . _.

. f jn[

REFERENCES (7) Intergranular Stress Corrosion Cracking of Ni-Cr-Fe Alloy 600 Tubes in PWR Primary Water-Review and Assessment for Model Development, EPRI NP-3057, May 1983 (8) Steam Generator U-Bend Eddy-Current NDE EPRI NP-3010, April 1983 l

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VIII APPENDIX A PRELMNARY PROJECT DESCRIPTICBI -

RPS303 CAUSES AND CORRECTIVE ACTIONS FOR PRIMARY WATER CRACKING OF STEAM GENERATOR TUBING STATENENT OF TME PR051.EM cracking of Alloy 600 steam generator tubes from the primary side has occurred in steam generators in at least 11 PWR auclear power plants. Zaitially primary side cracks occurred in sections of tube deformed due to progression of denting (i.e., at deformed U-beads and at dented support plate intersections). More recently primary side cracks have occurred in steam generators in which there is ao denting. These cracks have oocurred in sections of tubes intentionally de-formed during nosmal annufacturing (i.e. , at U-bands and in expanded sections of tubes within the tubeabeet) . The precise mechanism is not known.

PROJECT DESCRIPTION Research Obieetives Se objectives are to evaluate the causes of primary water cracking occurring in steam generators, determine the scope of tubes susceptible to cracking, and identify, verify, and follow the implementation of practical solutions. Emphasis will be on identifying those conditions in stems generators (e.g., loading, environment, results of material processing) which have caused primary water cracking of steam generator tubes. The project addresses

• sill annealed,*

• stress relieved," and " thermally treated

• Alloy 600 as well as other corrective heat treatments proposed. In addition, Alloys 800 and 690 will be tested as comparison asterials.

Proieet Methodolocy: H is project will begin with a detailed review of the estensive work already done or ongoing concerning cracking of Alloy 600 in primary water in order to identify the most likely causes. This will include reviewing the results of previous examinations of sections of cracked tubes removed from steam generators. Also, newly obtained samples will be esamined.

Raphasis of these examinations will be on confirming the common metallographic characteristics of the cracks, measuring detailed tube shape, and determining amount of sold work.

Fotential corrective actions will be identified early in the project based on judgment, results of previous projects, and speculation as to mechaniass. 5 valuation of potential corrective actions will proceed in parallel with evaluation of causes.

Tubing sockups will be prepared to duplicate what esists in steam generators. Care will be taken to process these sockups in the same way that tubes and steam generators are processed, to achieve the same geometry as in tube samples, and to duplicate other measurable parameters such as cold work. These mockups will be used for several purposes

a. Stress and strain information not obtained from cracked samples will be measured and calcu-lated. This will include determining the magnitude of residual stress, residual stress patterns, and operating stresses.

b. Autoclave tests will be run on the sockups to recreate the cracking observed in steam generator tubes, to identify methods for accelerating testing (e.g., higher temperatures ) without affecting the validity of the conclusions, and to separate the effects of variables such as load stress, residual stress, cold work ' environment, and tube processing history.

c. Tube sockups will be treated with potential corrective actions to decrease the effect of factors determined to cause cracks. Autoclava screening tests will be conducted to evaluate the effectiveness of these corrective actions.

Results of the accelerated tests on tube acckups will be reviewed to determine the principal factors causing cracking and the effectiveness of actions taken to reduce their severity. Based on this information, consideration of actions practical in the field and consideration of potential side effects, candidate corrective actions and techniques for applying them will be identified.

Techniques for applying corrective actions will be further developed and then qualified in model boiler tests.

PROJECT METBODOLOGY Loeie Plans. The causes of primary water cracking of steam generator tubing will be evaluated and corrective actione identified in accordance with the following logic plan

1. Task In Data Evaluation and Mechanien Definition A. Review Leak taperience B. Review Operating Chemistry of Affected Plants C. Esamine Removed Tubes D. Review Stress Pattern in Typical and Cracked Material

1. Applied Stress

2. Thermal Stress

3. Residual Stress E. Evaluate Safety Issues II. Task 2: Evaluatio, of Causes A. Mockup Affected Tube sections B. Characterise Mockups by Measurement and Calculation

1. Geometry

2. Residual Stress Maenitude and Patterns

3. Zand Stress Magnitude and Patterns A-1

VIII APPENDIX A PREllMINE PRf1TECT DESCRIPTION -

RPS303 (Page 2)

CAUSES. AND CORRECTIVE ACTICBIS FOR PRIMARY WATER CRAC3CING OF STEAM GENERATOR TUBING C. Perform Screening Tests

1. simulate steam eenerator cracking

2. Identify Asceleration Technique

3. Separate Effects of variables

!!!. Task 3: Evaluation of Remedial Actions A. Identity Candidate CDrrective Actions

1. Stress Redistribution

2. Metallurgical Action

3. Chemistry Control

4. Operational Changes B. Identify Techniques for Applying Corrective Actions C. Test Effectiveness of Correction Action in Mockup Tests D. Qualify Corrective Actions / Techniques in Model Boilers IV. Task 4: Imolementation of Selected Remedies A. Prepare Generic Frecedure S. Identify a Field Steam Generator for Application C. Follow Application and Effectiveness Task

Description:

Tast le pate r7aluation and Definition of Problem

a. The occurrence, location, and tune og steam generator tube leaks due to primary water crceking will be reviewed to establish'a data base and to identify any obvious correlations. The data base will be updated as necessary. This effort will only supplement that of RF5306E and RP2163

-wh3re the bulk of data will be collected

b. Operating primary water chemistry of selected plants will be reviewed to establish a data boce and to identify any obvious correlations. This work will be a continuation of work begun under tubprogram 0800

c. Cracked and uncracked tubes removed from steam generators will be esamined to characterise metallography, crack characteristics, deposits, and tube geometry. This is needed to assess the role of phenomena such as oxide wedging and the importance of cold work and processing history.

part of this will have been completed under subprogram 0818 and the bulk of new work will be done as part of RPS304E

4. The sources, locations, and angnitude of stresses in steam generator tubes will be caleu-lated and residual stresses will be measured. The effect of steady-state and transient loadings and ths effect of local tube stress will be related to tube geometry, tube processing, tube bending, and otsam generator fabrication.

e. The leakage and rupture characteristics of primary water cracks will be assessed. Rupture t20ts of U-bends and esponded sections (typical of the tubesheet region) will be performed to estab-lich the margin to rupture of cracked tubes and to evaluate the validity of " leak before break' cecuoptions. In addition, tests will be performed to simulate transient tube loadings typical of ot:aa generator operation. Work on D-bends will be a continuation of that started under subpro-gram 0803. So far, attempts under that project to create antal cracks have not been successf ul.

Task 2: Evaluation of Causes

a. nocxups or the arrectee tube sections will be fabricated. These, for esample, would dup 11-cote U-bends and the transition between espanded and unespanded portions of the tube in the tube-chset

b. Careful characterisation will permit measurement and/or calculation of parameters that cannot be determined free samples removed from steam generators (1) Gecastry and hardness asasurements provide some confirmation that steam generator canditions have been simulated.

(2) Residual stress magnitude can be seasured by strain gage and radiographic techniques (with difficulty and imprecision). Residual stress patterns can be determined by immersing samples in an environment that causes stress corrosion cracking.

'(3) similar techniques can be used to obtain information on load stresses.

c. Screening tests will be performed on the mockups in autoclaves (1) Initial tests will attempt to recreate cracking in mockups which are prototypical of installed tubes.

(2) Once cracks can be reproduced, techniques to accelerate the tests will be assessed to sn ure that they do not alter the cracking.

(3) Accelerated tests will be performed to separate effects of variables such as resadual

.triass, load stress, geometry, cold work, and asterial processing history.

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PREllMINARY i VIII APPENDIX A i

pRCLTECT DESCRIPTION - RPS303 (page 3) i CAUSES AND CORRECTIVE ACTIONS FOR PRIMARY WATER CRACKING OF

! STEAM GENERAER WRING 4

Task 3: Evaluation of Remedial Actiona i a. maaes on results or Taas z, canateate corrective actions will be identified. For example, if residual strees is found to be a dominant factor in causing cracking, methods to relieve or l redistribute stresses will be sensidered candidate corrective actions. Changes to metallurgy, i chtnistry control, and operation are other esemples of potential corrective actions. All these i candidates will be reviewed for practicality as well .

l b. Techniques for applying corrective actions will be identified. These techniques will be developed to the prototype stage

c. Effectiveness of sorrection actions will be checked -n autoclave tests (Note 3). ,

d. Corrective actions will be applied with techniques identified to tubes in model boilers l l

which simulate steam generator operation. After operation, the model boilers will be examined to I 0211fv the corrective action i Task 4: Implementation of Selected Remedies

! a. eewrac procesures ws2A se preparea zor applying corrective actions to steam generators.

1 b.. Field steam generators with tubes subject to cracking will be identified for application of ,

crrrective actions. Inspections will be performed to establish baselines. l

} c. Assistance will be provided to apply the corrective actions in the selected steam gener-  !

attes. The steam generators will be inspected periodically to verify the effectiveness of the actions taken.

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t

} RELATIONSMIP TO EPRI PROJECTS, PROGRAMS, AND SINIZAR EFFORTS ELSENEERE EPRI has the following related projects in its programa 4

j RP1166 - Corrosion Proereas to Suooort Reliability of Nuclear LWR Systems: The project i

caplores metallurgacal and environmental factors that limat the lifetime of structural aa.orials  ;

j u":ed in light water reactors for piping, pressure vessels, steam generator and condenser tubes, l turbine blades, and other components. (Considerable portions of this work apply to coal-fired

{

plants

%stinghouseas well.) Contractors Electric are Ohio State Dniversity, Maasachusetts Institute of Technology, and Corporation. ,

-j RP1700 - Optimisation of Metallureical variables to Improve the Corrosion Resistance of Thermally-Trea ted almov 500: Taas project sesonstrates the taproves corrosaon resistance et

! thermal 2y-treated Alhoy 600. The Alloy 600 will be tested under conditions of various caustic con-l centrations, at a range of temperatures, in contaminated all-volatile treatment solutions, and in a primary coolant. A model esplaining the improvements of heat-treated Alloy 600 will be deve2oped, 1

j cnd laboratory work on the carbide dissolution precipitation kinetics of this material will be con-ducted during later stages of this project. Westinghouse Electric Corporation is the contractor far this project.

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3 Other related work is as follows:

The principal investigators of Inconel 600 cracking, the variables they considered, and the environments in which they tested are summarised in the following tables-

) NAME VAk! ABLES (*) ENVIRONMENT i

j Coriou (EdT) T, Carbon Content Pure Water, Caustic 7 Berge (Edr) T, e, Beat Treatment Caustic Thous (36W) T, e, Beat Treatment AVT, Caustic Airey (W) T, e, Beat Treatment Potential Caustic Bettas (not public) T, Microstructure, Neat Treatment, Chemistry Primary Water Van Rooyen (Brookhaven) T, Beat & Carbon Content, Beat Treatment, Strain Rate Caustic R1ein (W) Beat Treatment, tend radius, shot poening (D-bend acekups) Primary water Berge (Edr)/ Van Melsen Manufacturing Method, Tube Cross (Laborelec) Section, Residual Stress 30455 and MgC12 Polythionic acid

(* ) T = Temperature r s = stress.

As can be seen, estensive work has been and is being done on cracking of Alloy 600; however, at is not well coordinated and interrelated. As a consequence, there are big gaps in the work and saults of one investigator of ten .cannot be related to the results of another.

A-3

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PRELIMINARY PROJECT DESCRIPTION - RPS303 (Page 4) l l

CAUSES AND CORRECTIVE ACTIONS FOR PRIMARY WATER CRACKING OF j STEAM GENERATOR TUBING 1

The mechanism of Alloy 500 cracking in primary water, pure water, AVT, or caustic is not

known. Testing has shown that cracking is atrongly dependent on temperature and applied stress

i howev:r, quantitative relationships are not t m . There is disagreement among investigsters con-corning tne effects of material chemistry, preeensing, and microstructure: however, there is general egreement that a post annealing heat treatment r,f 1100*F to 1300*F increases resistance of Alloy 600 J to cracking in the various environments tested.

It is difficult to reproducibly crack Alloy 600 in pure waters therefore, an accelerating

onvironment of NaOH at various concentrations has been used for most tests. It is hoped that trends

obr,crved are the same for the various test environments

however, quantitative relationships for 4 comparing results in different environments have not been well justified.

Westinghouse and Battelle Northwest are both conducting failure esans of cracked tube U-bends tsmoved from a Trojan steam generator. Battelle will measure residual stresses in uncracked tubes end has measured a U-bend removed from a Farley steam generator to characterise the geometry of the trcosition from the straight to the bent portion.

Robert Cloud Associates has been working under a TSA to calculate t.he sources, locations, and magnitudes of operating stresses in tube U-bends.

The subject of cracking of tube D-bends in steam generators was reviewed in a workshop by the Stoc:2 Generator Owners Group in August 1980. Results are reported in EPRI-WS-80-136, Workshop Prnccedings: 0-Send Tube Cracking in Steam Generators, April 1981.

RP2153 consists of a complementary theoretical evaluation of mechanisms of cracking of Inconels in cteam generators. Work is to start in 1982 and to continue at a steady level through 1986.

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a I

I Press Release Agency of Natural Resources November 25, 1991 and Energy Ministry of International Trade and Industry Japanese Government i

Results of the Investigation on the Steam Generator Tube Break at l 1

Mihama Unit No. 2 of the Kansai Electric Power Company, Inc. I I

Investigations have been conducted on the steam generator tube break at Mihama unit No. 2 (pressurized water type reactor with capacity of 500 MWe) of the Kansai Electric Power Co., Inc. based on the reviews of the Special Committee Investigating the Mihama unit No. 2 Incident (chaired by Iida j Kunihiro, Professor Emeritus at University of Tokyo, who is also a Professor at Shibaura Institute of Technology) which has been established by MITI in the i Technical Advisory Council for MITI on Nuclear Power Generation. The results

p. of the investigations into the causes of the steam generator tube break and j the actions taken at the time of the occurrence of the incident, as well as the countermeasures to be taken to prevent a recurrence, have been summarized as in Attachment 1. f Also,. based on the results of the investigation, the Agency of Natural Resources and Energy has directed the electric utility companies owning pressurized water reactors and the electric utility companies owning boiling water reactors to take the recurrence prevention actions and other measures f i

according to Attachment 2 and Attachment 3 respectively.

Contacts: Nuclear Power Safety Examination Division

. Phone 03-3591-8092 Nuclear Power Safety Administration Division Phone 03-3501-9547 Nuclear Power Operating Administration Office N

Phone 03-3501.-1739 g 1

, _ . . -__~.__._,_________.__.__m . . . . . _ _ . _ . . . . . _ . . . _ . . _ . _ _ _ . - . _ . - _ _ _ .

s.-

r-(Attachment 1)

~

! The Steam Generator Tube Break at i

Nihana Unit No. 2 of the Kansai Electric Power Company, Inc.

(Summary Report) l

1. History of Investigation (1) On February 9, 1991, Mihama unit No. 2 of the Kansai Electric Power

~

Company, Inc. was automatically shut down due to a tube break in A-steam generator followed by the automatic actuation of the emergency core cooling j system (ECCS).

I.'

I (2) MITI started investigation into the causes of the incident immediately after the occurrence of the incident. They continued investigations based on the. reviews and site surveys' performed by the Special Committee Investigating the Mihama unit No. 2' Incident, which was established on l

February 20, 1991, by MITI in the Technical Advisory Council on Nuclear

Power Generation, and compiled an interim findings of the investigation on

• June 6, 1991.

l

. (3) MITI then continued further investigations, and cowpiled the report on the steam generator tube break at Mihama unit No. 2. The report describes the chronology and analysis of the incident, evaluation of the incident, the causes of the tube break, countermeasures to prevent a recurrence, and lessons'to be derived from the incident, .etc.

f

2. Chronology and Analysis'of the Inci~ dent (1) Chronology of the Events i

February 9, 1991-1.

Around 12.40 hrs. : An operator discovered that the record given by the steam generator blow-down water monitor (to be termed "R-19" hereafter), by which the leakage of the reactor i:

coolant to the secondary side is monitored, was 2

l-l-

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. . . _ - - - ... . . ~ _ - . . . . -. . .

\

e increasing slightly.

Instruction was given to analyze the radioactivity concentration by collecting a sample.

Around 13.45 hrs. : The alarm of R-19 was sounded.

Around 13.47 hrs, : Operation was started to reduce the generator output with the intention of shutting down the reactor.

13:50 hrs. : The reactor trip signal was activated, and the reactor and the turbine were automatically shut down in accordance with normal sequence. And then, the safety injection signal was activated, and the injection of

' water into the reactor coolant system was started automatically.

Around 14.02 hrs. : Since the complete closure of the main steam isolation valve of A-steam generator (to be termed "the damaged steam generator" hereafter) could not be confirmed,

• ' the operator tightened the said valve manually.

14.02 hrs. to 14.17 hrs. : The main steam relief valve of B-steam generator was opened to cool the reactor coolant system.

Around 14.10 hrs. to around 14.25 hrs. : It turned out that the two pressurizer relief valves, which are used to reduce the reactor coolant system pressure, failed to open.

14.34 hrs. : Operation was started to reduce the reactor coolant system pressure using a pressurizer auxiliary spray.

J' 14.37 hrs. : Two high pressure injection pumps were stopped after confirmation that the pressurizer water level had been recovered.

3

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14.48 hrs. : The reactor coolant system pressure and the pressure l

l of the secondary side of the damaged steam generator i

became almost equal, and the leakage of reactor l l

coolant into the secondary side stopped. j

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l (2) Investigation of the Plant's Response i i

i It is estimated that, due to the damage of the tube, the small amount of .

reactor coolant which leaked into the secondary side of the damaged steam j l

generator occurred by around 12.40 hrs., that the damage of the tube propagated rapidly at around 13.45 hrs., and that the tube was then completely broken circumferential1y.

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-(3) Investigation of the Plant Operation l

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• It is evaluated that the operators responded appropriately to this incident, and safely led the incident to subsidence, despite the ,

I occurrence of such events as the incomplete closure of the main steam

14 isolation valve and the in-operativeness of the pressurizer relief valves. 1 I

j

• The operations manual did not contain instructions for operating i 1

procedures in the event of malfunction of equipment such as incomplete closure of the main steam isolation valve and the in-operativeness of the pressurizer relief valve. .Also some instructions for the timing, sequence, conditions, etc. of equipment operation we're not explicit.

I (4) Other Investigations

<1) Incomplete Closure of the Main Steam Isolation Valve As mirror finishing was applied to the sliding surface of the valve stem during the last periodical inspection, the grease component that seeped out i

/

from the asbestos packing during plant operation was heated inside the gap between the graphite packing and the sliding surface of the valve stem, thereby turning to a very sticky, degenerated substance. This made the As the graphite packing stick to the sliding surface of the valve stem.

i

! 4 I

N o- l l

sliding resistance of the packing increased to 1.5 times the designed value, the valve closing resistance at the position near complete closure exceeded  ;

the valve closing force. It is judged that this was the reason why the main steam isolation valve did not close completely. )

<2) Failure of Operation of Pressurizer Relief Valve An operator assumed that the air supply valve in the air junction box was not commonly used as an air supply valve for the air system to operate the pressurizer relief valves, and, assuming that it was a valve supplying an auxiliary air system, he closed the valve in question based on the assumption that it is not normally used.

The closure of this air supply valve was overlooked in the checking process of the inspection record. Therefore, the operating air was not supplied to the pressurizer relief valves, and the two pressurizer relief valves did not operate. i se <3) Plant Computer As the processing capacity of the plant computer was not sufficient, some .

of-the trend record of PAM (post accident monitor) was not renewed, and some alarm typewriter records were lost.

(4) Reporting and Liaison

• The Kansai Electric Power Company, Inc. reported the occurrence of this incident to the Fukui Prefectural Government at 14.17 hrs., and to the Mihama Town Office at 14.44 hrs. The Company explained the situation to the Tsuruga Municipal Government the following day, February 10.

• As the procedure for dealing with general plant vi* itors had not been specified at the time of the occurrence of this incident, no explanation of the incident was given to the visitors who were at the plant at the time.

5

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3. Evaluation of the Incident

(

(1) Result of Reproduction Analysis of the Incident The amount of the reactor coolant leaked into the secondary side of the damaged steam generator: Approximately 55 tons The amount of the steam discharged from the main steam relief valve of the damaged steam generator: Approximately 1.3 tons The amount of the steam leaked into the down stream of the main steam isolation valve of the damaged steam generator: Approximately 6.8 tons l

l l The amount injected water from the safety system: Approximately 50 tons l r i

l-

. (2) Result of Evaluation of Core Integrity l-The minimum departure from nucliate boiling ratio at the location under severest condition in the core'was approximately 2.76 at the moment before the reactor was automatically shut down. Since this was not below the allowable limit of 1.17, this incident did not create the condition under which the heat transfer from fuel cladding to reactor coolant is reduced and

.the fuel clad temperature rapidly rises, and therefore, the fuel rods were i

not damaged.

l (3) Evaluation of Radioactive Materials Released to the Environment and Their Impact l

I

! <1) Evaluation of Amount' of Radioactive Materials Released to the Environment The amount of radioactive materials released to the environment was 10 L approximately 0.6 Ci (approximately 2.3 x 10 Bq), which is substantially below the annual discharge control target value.

6

e s

(2) Evaluation of Effective Dose on the Public The effective dose on the public around the plant received from the radioactive materials released during this incident is 1 x 10-0 Sv (approximately 1 x 10-6 rem), which is approximately a 100,000th of the effective dose received from natural radioactivity for a period of one year (approximately 1 x 10 3 Sv), an amount that does not affect the public around the plant.

(4) Comparison of This Incident with Safety Analysis Accompanying the Application Document for Reactor Establishment Change Permit and Its Evaluation When this incident is compared with the analysis (safety analysis) for safety evaluation contained in the Application Document for Reactor Establishment Change Permit of Mihama Power Plant (September 17, 1990), the incident as a whole is generally in agreement with the safety analysis result, although the lapse of this incident is different from the conditions i# of safety analysis in such points as the in-operativeness of the pressurizer relief valve.

In terms of the fuel integrity and the radiation exposure risk on the public around the plant, which are noteworthy items in safety analysis, there is no problem, and it is judged that this incident was within the scope evaluated by the safety analysis.

(5) Evaluation of Integrity of Reactor Vessel, etc.

(1) Investigation of Pressurized Thermal Shock

<a) Evaluation of Thermal Shock on Reactor Vessel The minimum attainable temperature of the core region of the reactor vessel was obtained by analysis, and it was verified that the reactor vessel was not in the temperature zone where there is the possibility of a brittle fracture, with sufficient margin of safety.

7

l

Evaluation by Method of Fracture Mechanics A fracture mechanics evaluation was conducted by assuming stress j conditions under which thermal stress was applied on a hypothetical l l

reactor vessel flaw, and it was verified that the hypothetical flaw did i l

not propagate during this incident, and there was no possibility of a brittle fracture in the reactor vessel.  !

i

• Therefore, no effect was created on the reactor vessel so far as pressurized thermal shock evaluation is concerned, and it is judged that the pressurized thermal shock poses no problem for future use of this reactor vessel.

<2) Investigation of Thermal Fatigue

• When water is injected into the reactor coolant, temperature difference arises in the structural materials, thereby creating thermal strain. The effect of repetition of such strain on the fatigue failure has been e evaluated in the design. The contribution of this event to fatigue has been evaluated, and it was verified that such contribution is practically null.

l

• Therefore, there is practically no effect on the equipment integrity so l

far as fatigue evaluation is concerned, and it is judged that this factor l

poses no problem for future use of the equipment. l l

(6) Other Investigations Concerning Core Integrity

<1) Investigation of the Condition

• According tc, analysis, the temperature at the center of the fuel dropped rapidly as the reactor power reduced, and the fuel cladding temperature also dropped with reduced reactor power. For this reason, there was not a sufficient temperature rise to cause fuel damage.

8

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• Considering the iodine-131 concentration in the reactor coolant and the result of the fuel assembly shipping inspection, it is judged that leakage through fuel cladding did not occur. l l

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<2) Investigation of the Condition of Reactor l

l

• The temperature of the reactor coolant at the top of toe core remained below the saturation temperature throughout the period from occurrence to subsidence of the incident. j 3

• A void having the maximum volume of approximately 5 m was created inside the reactor coolant system as the system was depressurized, but this void did not prevent the natural circulation of the sound loop. j 1

l- l

• It is judged that the high pressure injection pumps functioned as designed j as the reactor coolant pressure changed, and the core was kept flooded.

l l 4. Investigation into the Cause of the Steam Generator Tube Break f - ,

l (1) Anti-Vibration Bar i

I

• Concerning the anti-vibration bars inserted between lines X44 and X45, and X45 and X46, both the upper and lower anti-vibration bars were not inserted into-the location specified in the design, and tubes located from l

X45 - Y12 to X45 - Y23, which include broken tube, were not supported by anti-vibration bars on either side.

[

l

[

• All the anti-vibration bars in question were distorted from the designed shape, and evidence of cutting, which was in conflict with the design, was observed at the end of the upper anti-vibration bar, whose total length l

was from 40 to 50 cm shorter than required in the original design.

l l

• It is estimated that the anti-vibration bars were not inserted at the location specified in the design, because sufficient attention was not given to work supervision or quality control of the anti-vibration bars when the damaged steam generator was manufactured.

9 .

-. - -. - - . _.~ . .. - .- .- . - _ . - .-. . .

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i

• The location of the anti-vibration bars was never confirmed after the ,

I plant was commissioned to commercial operation. l (2) Broken Tube

• The broken tube was located at X45 - Y14. The tube was broken off circumferential1y at the upper edge of the No. 6 tube support plate on the

! cold leg side.

1

• Since the following features were observed, it is judged that the cause of break was high cycle (Note 1) fretting fatigue (Note 2).

l; l

• Fracture surface near the initiating point:

The facet (accumulation of innergranular cracks having minute i steps) which is a characteristic of the low speed propagation fatigue fracture surface of Inconel materials.

• Fracture surface at outer side of the initiating point:

(-

Fracture surface which has an angle to the. axial direction, f my that features fretting fatigue.

I

'

• Fracture surface of propagation region which is far from the initiating l point:

l Striation which is a characteristic of a high cycle fatigue fracture surface.

• Outer surfaces including the initiating point:

Traces of abrasion in axial direction indicating contact with tube support plate, which include numerous minute circumferential cracks which has an angle to the axial direction, being characteristic of fretting fatigue.

• As the broken tube was not supported by anti-vibration bars, the fluid elastic vibration occurred in the U-bend portion of the tube (Note 3). As the tube was subjected to a repetitive load of fluid elastic vibration while the contact pressure was loaded at the No. 6 tube support plate where the tube was supported fixedly, a crack was generated at the

?- position of the No. 6 support plate due to high cycle fretting fatigue, which finally caused the tube break.

10 I

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. l l

l

• It is deemed that had the broken tube been supported by anti-vibration I bars, the fluid elastic vibration would not have occurred, nor would the tube break.

• No feature that suggests denting, stress corrosion cracking, nor intergranular attack was observed on the broken tube. Also, it is deemed that there was no effect of corrosion fatigue, hydrogen embrittlement nor j irradiation embrittlement.

l l

(Note 1) High Cycle Fatigue: Fatigue caused by 105 or more cycles of 1

(

' repeated stress before breakdown.

i (Note 2) Fretting Fatigue: Slip of metal over the surface of contacting material creates minute cracks j that lead to fatigue breakdown. l (Note 3) Fluid Elastic Vibration : A phenomenon in which a vibration of large amplitude is quickly developed when I fluid flow above a certain speed is applied l 1

to a tube bundle.

e (3) Adjacent Tubes

• The U-bend portion of the tubes which had a larger radius than the broken tube and which were not supported by anti-vibration bars were subjected to fluid elastic vibration. These tubes were supported at the No. 6 tube support plate with clearance, and since they were subjected to a repetitive load by fluid elastic vibration, they slipped along the circumferential direction within the support plate tube holes, and suffered from wear thinning. The tubes on which wear thinning was observed were limited to those in the zone where insertion of anti-vibration bars was substantially insufficient.

• Had these tubes been supported by anti-vibration bars, the fluid elastic vibration would not have occurred on tubes on which wear thinning was observed, and these damages would not have been caused.

l 11

_, -. .. ~ . - - . = . . - . . ~ . . . - . - _ . . - . ... . . . . . . .. - . . _-. .. --

• The effect of the broken tube on neighboring tubes was slight, with the scale surface of neighboring tubes being lightly scratched, and it is deemed that the broken tube did not cause damage to the neighboring tubes.

5. Countermeasure to Prevent a Recurrence and Lessons

.(1) Further Improvement and Intensification of Safety Assurance Measures by MITI l

<1) Inclusion Into Revies of Anti-Vibration Bar with Construction Plan and l Inspection Items

• The anti-vibration bar shall be included in the items of construction plan review and preservice inspection, to intensify the Technical Standards.

• The conditions of insertion and installation of anti-vibration bars shall

' be checked during periodical inspections.

i

<2) Improvement and Intensification of Periodical Inspection

~

• The inspection of major equipment, including the main steam isolation valve and the pressurizer relief valve, shall be intensified.

• The deformation of the steam generator tube at the tube support plate shall be inspected.

l I

<3) Improvement of Safety Evaluation Concerning Steam Generator Tube Break l' Incident The reliability of the closure of the main steam isolation valve shall be evaluated more conservatively.

(4) Intensification of Guidance and Supervision of Quality Assurance Activities i

I-The guidance and' supervision of quality assurance activities shall be i

12

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further intensified by conducting periodical surveys.

(2) Intensification of Self-Safety Assurance Efforts

<1) Intensification of Quality Assurance Activities

• It is required that the quality assurance activities in electric l utilities, plant manufacturers, etc. are intensified. 1 i

• In electric utility companies, in particular, it is necessary that departments in charge of nuclear power take the initiative and reflect the lessons learned from the failures and incidents in Japan and abroads in their existing plants, and improve and intensify the auditing of quality i assurance activities in plant manufacturers and others.

• It is required that the quality assurance inspection organization, which has been newly established as an organization independent from departments in charge of nuclear power, is actively utilized.

4

<2) Improvement of Integrity of the Steam Generator Tube The quality assurance activities on the anti-vibration bars must be improved and intensified, new knowledge and technology shall be aggressively introduced to deal with the damage status of existing tubes, for prevention and supprersion of such damage.

<3) Improvement of Maintenance and Management System

a. Main Steam Isolation Valve

• The roughness of the sliding surface of valve stem of the main steam isolation valve shall be confirmed.

• The closing force of the mair steam isolation valve must be increased, and a tightening device shall be installed.

13

6

b. Pressurizer Relief Valve

• Concerning the instrumentation air supply system for equipment with important safety functions such as the pressurizer relief valve, considerations shall be provided to prevent misoperation.

• Measures for prevention of misoperation, such as locking management, shall be thoroughly provided to manually operated valves which are related to the operation of equipment with important safety functions.

• In addition, it is desirable to eliminate, as much as possible, the factors which could be the cause of simultaneous failure in designing equipment which have important safety functions.

(4) Improvement of Operations Manual

• The adaptable operations which are required in the case of an anomaly in equipment with important safety functions, such as failure of the w pressurizer relief valve to operate or incomplete closure of the main steam isolation valve, shall be specifically detailed in the operations manual.

<5) Improvement of Monitoring System and Instrumentation and Control System

a. Improvement of steam generator leak monitoring system,

b. Improvement of pAM trend system and alarm typewriter.

c. Improvement of instrumentation systems (study of installation of reactor vessel level indication system and main steam radiation measurement.)

d. Improvement in plant control system (effective use of equipment which is powered by normal power supply during the occurrence of an incident.

l 14

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l (3) Nedium and Long Term Requirements Including Technology Development The eddy current test technology shall be enhanced, including further improvement of detection accuracy, and *.he inspection technology, by which the fatigue of steam generator tubes catsed by vibration can be detected more accurately and at an early stage, shall be developed.

The efforts to develop technology to prevent human errors shall be continued.

• The method of evaluating fluid induced vibrations, etc. shall be improved by (xperiment and other means.

(4) Improvement of Prompt Response in the Occurrence of an Incident t <1) Improvement of Reporting and Liaison System The reporting and liaison systems between related authorities and 4 organizations shall be improved.

l

<2) Prompt and Appropriate Way of Dealing with General Plant Visitors Manuals are prepared and utilized in dealing with general plant visitors in the occurrence of an incident, but this shall be made more effective by l

l exercising in-house training.

I

<3) Prompt Evaluation of Released Radioactivity

! ,It is required to attempt to improve the system by which the release of radioactivity to the environment surrounding a power plant in the occurrence of an incident can be evaluated more promptly and accurately.

I l

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15 t

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[ Reference] l The integrity of steam generators of pressurized water reactors in  !

Japan, other than Mihama unit No. 2, have been investigated. It is judged )

that the design of steam generator tubes against fluid elastic vibration and random vibration is appropriate for the maintenance of integrity.

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j.' '

f l -

THE ESTIMATION OF BREAK AND WEAR HECHANISH OF THE TUBE Initial stage Generation of fluid elastic Tube break by high cycle of operation vibration due to substantial fretting fatigue lack of insertion of AVBs Onn -

\ '. ll Broken tube Tube ii I' L (X45-Y14) / i.  :

O \.t.U u

. ~

I Fixed support l

> i

( Wear thinning with tube support plate traces of rubbing Support with clearance g f

{syi ti

\ \, l' l iM I I V

k [ '

Adjacent tubes - '. i c-

::  : i r -* (X45-Y15~Y22,etc. ) i y l P~ ;

O s cb d l %e l

~! l " i Support with clearance L

l EVALUATION OF THE CONDITION WHEN AVBS WERE CORRECTLY INSERTED The tube break would not occur due to AVB the suppression of the tube vibration, independent of the support condition by the tube support plate, if AVBs Tube vere correctly inserted.

No.6 i tube support plate i

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RESULTS OF THE INVESTIGATION INTO THE CAUSES

- 0F THE TUBE DAHAGES ON LINE X45 X45-Y14 X45-Y16 X45-Y11 X45-Y12 X45-Y13 (Broken X45-Y15 Tube) X45-Y22 Active Tube or Plugred Active Plugged A tive Plugged Tube 1

- Supporting Condition Support Fixed Support i at the No.6 Tube Fixed Support with with l Support Plate Clearance Support Clearance Minute Hot Observed H t Observed Observed Heta;1urgical Cracks Investigation Observed Thin- Not Observed riing Haximun Value of the Stability Ratio Less than 1 1 or more by the Fluid Elastic y

Vibration Analysis Srnall Evaluation for the Probabil-Occurrence of the ity of n t Occured Occurred Fluid Elastic Vibration rence Fixed Support Break I No Occurrence of

-e fluid elastic -

vibration Support with Clearance

> Wear Thinning Support by anti-vibration -

bar

+ No occurrence Fixed Support No Damage of fluid elas-

--> tic vibration Support with Clearance Yes

/I ' .

(Attachment 2)

1. Intensification of Self-Safety Assurance Efforts (1) Intensification of Quality Assurance Activities The quality assurance activities in design, construction and operation stages shall be further intensified with full understanding of the requirement for high quality.

In particular, the departments in charge of nuclear power shall further improve and intensify their efforts to reflect new knowledge, new technology as well as lessons learned from failures / incidents in Japan and abroads into existing plants, in order to manage design modification, to prevent human error; to improve the autonomous quality assurance standards, and to improve / intensify the inspection of quality assurance activities of plant manufacturers, equipment manufacturers, etc. In implementing these efforts, the quality assurance inspection organizations, which have been newly established independently from the nuclear departments, shall be actively utilized.

(2) Improvement of Integrity of Steam Generator Tubes The quality assurance activities in the design, construction and operation stage shall be improved and intensified so that the anti-vibration bar is inserted into the designed position without mistake, and maintained and supervised to stay at that position.

New knowledge, technology, etc. shall be actively introduced to deal with the current damaged status of tubes, to prevent a recurrence and to suppress such damages.

(3) Improvement of Maintenance and Management Procedures, etc.

<l> The roughness of the sliding surface of the valve stem of the main steam isolation valve shall be confirmed.

The closing force of the said valve shall be increased, and a tightening device shall be installed so that the said valve can be promptly closed by manual operation.

19

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<2) The work supervisory system shall be improved, in addition, concerning the instrumentation air supply system for equipment with important safety functions such as the pressurizer relief valve, considerations shall be provided to prevent misoperation, for example, by avoiding as much as possible the installation of manually operated valves which may interfere with the safety function.

l Concerning the manually operated valves which are related to the operation f of equipment with important safety functions, thorough provisions shall be implemented to prevent misoperation, for example, by providing a locking l

management, by clearly indicating the open/close status, and by clearly defining the scope of inspection in the inspection manual.

It is desirable to eliminate, as much as possible, the factors which could be cause of simultaneous failure in designing equipment with an important safety function such as the pressurizer relief valve.

l (4) Improvement of Operations Manual The operations manual shall be further improved based on the following l

+r points of view, and the manual shall be further substantiated by incorporating the lessons learned from faults / incidents in Japan and abroads, and the education and training based on such operations manuals shall be implemented.

First, the adapting procedures to be followed in the case of in-operability of the pressurizer relief valve and the case of incomplete j..

I- closure of the main steam isolation valve shall be prescribed in the operations manual.

In addition, the specific operating procedures by which operators can easily identify the situation involved and take appropriate actions even in the case of the occurrence of an incident or the occurrence of an anomaly in equipment with important safety functions, shall be added to the operations manual.

Further, the instructions for timing, sequence, conditions, etc. of j operation of equipment in each operations manual shall be clarified.

l I

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l (5) Improvement of Monitoring System and Instrumentation and Control System j

<1) A monitoring system, by which leakage of radioactive materials from a tube can be more promptly and accurately detected, and by which the leaking steam 1

generator can be identified, shall be introduced. '

<2) The. computation capacity of the plant parameter related to the PAM trend system, and the processing capacity of the alarm typewriter, and other improvements shall be implemented.

<3) The capability of identifying the plant status during the occurrence of an l incident shall be improved, including the attempt of introducing the reactor vessel Icvel indication system and the main steam radiation measuring instrument by taking into account recent technological progress.

i (4) It is desirable to modify the plant control system in such a manner that, when off-site power is available, the plant condition can be settled down to

\

l the normal status by employing ertipment powered by normal power supply, in i

l addition to the-supplied by emergency power, and to prepare a corresponding operations manual.

l

2. Medium and Long Term Requirements Including Technology Development l l

l l

(1) The eddy current test technology shall be enhanced, including further I improvement of detection accuracy and the inspection technology, by which the fatigue of steam generator tubes by vibration can be detected more accurately and at an early stage, shall be advanced.

l (2) The efforts to develop technology to prevent of human errors in plant l

operation and maintenance work shall be continued.

(3) Concerning the flow induced vibration and thermo-hydraulic behavior of major components of nuclear power plants, further efforts shall be exercised I to improve the methods of evaluation of these phenomena, for example, by conducting experiments.

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3. Improvement of Prompt Response in the Occurrence of an Incident (1) Improvement of Reporting and Liaison System The reporting and liaison system with the relevant authorities / organizations shall be improved, including the improvement of liaison procedures and further improvement of reporting / liaison means.  ;

1 I (2) Prompt and Appropriate Way of Dealing with General Plant Visitors ,

Manuals are prepared and utilized in dealing with general plant visitors i 1

in the occurrence of an incident, but this shall be made more effective by l exercising in-house training.

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.1 (3) Prompt Evaluation of Released Radioactivity )

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It is required to attempt to improve the system by which the release of radioactivity to the environment surrounding a power plant in the occurrence 9 of an incident can be evaluated more promptly and accurately.

! The above measures shall be implemented in order to prevent the recurrence

of this incident and to make effective use of the lessons learned. The following measures shall also be implemented from the point of view of

! fostering a sense of trust in nuclear power generation among the general public.

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(1) From the point of view of further improving the integrity of steam l

generator tubes, the anti-vibration bars in plants employing the

(

l conv.entional ones shall be systematically replaced with the improved anti-vibration bars to suppress wear thinning of a tube at the contacting surface with anti-vibration bars.

(2) In view of the fact that the steam generator tube break has actually

! occurred, the actions to shut down a reactor shall be immediately taken in i the event that a significant change in the parameter (radioactivity concentration) of the secondary water is observed.

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(Attachment 3)

1. Intensification of Self-Safety Assurance Efforts (1) Intensification of Quality Assurance Activities The quality assurance activities in design, construction and operation stages shall be further intensified with full understanding of the requirement for high quality.

In particular, the departments in charge of nuclear power shall further improve and intensify their efforts to reflect new knowledge, new technology as well as lessons learned from f ailures/ incidents in Japan and abroads into existing plants, in order to manage design modification, to prevent human error; to improve the autonomous quality assurance standards, and to improve / intensify the inspection of quality assurance activities of plant manufacturers, equipment manufacturers, etc. In implementing these efforts, the quality assurance inspection organizations, which have been newly established independently from the nuclear departments, shall be actively utilized.

(2) Improvement of Maintenance and Management Procedures, etc.

The work supervisory system shall be improved, in addition, concerning the control air supply system for equipment.with important safety functions such as the pressurizer relief valve, considerations shall be provided to prevent misoperation, for example, by avoiding as much as possible the installation of manually operated valves which may interfere with the safety function.

Concerning the manually operated valves which are related to the operation of equipment with important safety functions, thorough provisions shall be implemented to prevent misoperation, for example, Ny providing a locking management, by clearly indicating the open/close status, and by clearly defining the scope of inspection in the inspection manual.

It is desirable to eliminate, as much as possible, the factors which could be cause of simultaneous failure e n designing equipment with an important safety function.

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(3) Improvement of Operations Manual The operations manual shall be further improved based on the following points of view, and the manual shall be further substantiated by incorporating the lessons learned from faults / incidents in Japan and abroads, and the education and training based on such operations manual I

shall be implemented. -

First, the specific operating procedures by which operators can easily identify the situation involved and take appropriate actions even in the case of the occurrence of an incident or the occurrence of an anomaly in 1

equipment with important safety functions, shall be added to the operations '

manual.

In addition, instructions for timing, sequence, conditions, etc. of operation of equipment in each operation manual shall be clarified.

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(4) Improvement of Monitoring System and Instrumentation and Control System The computation capacity of the plant parameter related to the PAM trend

• system, and the processing capacity of the alarm typewriter, and other 1

improvements sha11Ebe implemented. l

! 2. Medium and Long Term Requirements Including-Technology Development l (1) The efforts to develop technology to prevent human errors in plant operation and maintenance work shall be continued.

(l' Concerning the flow induced vibration and thermo-hydraulic behavior of major components of nuclear power plants, further efforts shall be exercised to improve the methods of evaluation of these phenomena, for example, by condheting experiments.

l 3. Improvement of Prompt Response in the Occurrence of an Incident (1) Improvement of Reporting and Liaison System The reporting and liaison system between the relevant 4

24

. . . _ . . .. _ . -. . . . _ . - _ . . ... . . . . .._ ._ ____._.._._. __ . .. .. _ ____..___m..___. , _ - . . . _

s .

t authorities / organizations shall be improved, including the improvement of liaison procedures and further improvement of reporting / liaison means.

(2) Prompt and Appropriate Way of Dealing with General plant Visitors Manuals are prepared and utilized in-dealing with general plant visitors

.in the occurrence of an incident, but this shall be made more effective by exercising in-house training.

(3) Prompt Evaluation of Released Radioactivity It is required to attempt to improve the system by which the release of radioactivity to the environment surrounding a power plant in the occurrence t of an incident can be evaluated more promptly and accurately.

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- - , . , . . - ,- ---a----n, - , - -

NRC STAFF PRESENTATION TO THE ACRS

SUBJECT:

GENERIC LETTER

" Degradation of Steam Ge.nerator Internals" DATE:

April 15,1997 .

PRESENTER: Stephanie M. Coffin e Materials Engineer Materials and Chemical Engineering Branch Division of Engineering ~

415-2778 -

SUBCOMMITTEE: Materials and Metallurgy -

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t PURPOSE OF GENERIC LETTER '

e Communicate findings of damage to steam generator  ;

internals at foreign PWR facilities e Emphasize importance of performing examinations of steam generator internals to ensure steam generator tube structural integrity is maintained e Request information to verify acceptable condition of steam generator internals -

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DAMAGE TO STEAM GENERATOR INTERNALS AT FOREIGN PWR FACILITIES Plants similar to Westinghouse Model 51 Steam Generators

1) Wastage of the uppermost support plate-- .

Misapplication of a chemical cleaning process

2) Broken tube support plate ligaments at uppermost TSP--

Excessive stress during final thermal treatment

3) Wastage of tube support plates at various elevations--

Cause is undetermined; not associated with chemical cleaning i

l

4) Tube bundle wrapper drop and cracking of the wrapper--

l Excessive stress during cooling transient, poor welds; cause of cracking unknown 3 '

SIGNIFICANCE OF EVENTS

• Degradation of the tube support plates and the tube bundle i

wrapper could affect the integrity of the steam generator tubes

• Tube support plates prevent lateral displacement, vibration, and minimize bending moments in the tubes

• Fall of the tube bundle wrapper can lead to a loss of

! feedwater, damage to steam generator tubes 4

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FOREIGN RESPONSE TO STEAM GENERATOR INTERNALS DEGRADATION  :

To detect wastage and cracking of tube support plates:

• Eddy current testing of the steam generator tubes e Visual and video camera inspections of the secondary side I,

Response

• Tubes without adequate lateral support are stabilized and plugged 5

4 j i FOREIGN RESPONSE TO

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STEAM GENERATOR INTERNALS DEGRADATION i

To detect tube bundle wrapper drop:

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• Visua! and video camera inspections of the secondary side ~

• Online instrumentation of the bundle wrapper >

j Response: i

• Repairs completed on damaged bundle wrappers i  !

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~ i DOMESTIC EXPERIENCE ,

Cracked or deformed tube support plates found at dented intersections in U.S. steam generators (Surry 1&2, Turkey Point 3&4, San Onofre 1, Indian Point 2, Millstone 2)* *

• EDF experience indicates there may be other mechanisms which lead to support plate damage e Eddy current indications will be. visually inspected.this spring outage at Diablo Canyon ,

• Eddy current and visual inspections performed at Braidwood Unit 1 and Byron Unit 1 found no evidence of tube support plate or tube bundle wrapper degradation -

• * *Except for IP-2, all SGs replaced or plant was shutdown l 7

i APPENDIX B CRITERIA CRITERION XI, " TEST CONTROL"

~

t Program shall be established to assure that all testing required to demonstrate that SSCs will perform satisfactorily in service is identified and perform ~ed CRITERION XVI, " CORRECTIVE ACTION" Measures shall be established to assure that conditions adverse to quality, such as failures, malfunctions, deficiencies, deviations, defective material and equipment and nonconformances are promptly identified and corrected 8

i REQUESTED INFORMATION I

Request the following information:

• Discuss program to detect degradation of internals, if

such a program exists .

Reviews of past eddy current data Secondary side visual / video camera inspection results Description of degradation, how assessed and '

dispositioned l

• Discuss plans for establishing a program or justification as to why no such program is needed 9 i t

PUBLIC COMMENTS NUBARG

• GL implies licensees should perform inspections of SG internals

• Complete a backfit analysis, justify the need for the information '

and any new positions on inspection requirements

~

NRC POSITION

• Appendix B Criteria XI and XVI, " Test Control" and " Corrective Action" apply

• GL does not promulgate new or revised staff position or requirements

• GL requests information to assess the applicability of the foreign experience to U.S. SGs 10

i PUBLIC COMMENTS, continued NEl  !

t

• GL imposes actions for licensees to perform inspections of SG l internals i

• Industry task force formed which will address GL concerns; no need for GL NRC POSITION '

1

• GL requests information on actions taken in accordance with i Appendix B criteria ,

o GL needed to obtain and document information from licensees

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E STATUS OF GENERIC LETTER  :

i Public comment period expired March 15th NRC staff addressing comments  !

Expect coordinated industry response to GL through NSSS vendors and NEl/EPRI -

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STEAM GENERATOR EPRI N m m W 1994 PROGRESS REPORT REVISION 10 Preparedby Energy Management Services, Inc. ,

Little Rock, Arkansas l

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i l Steam Generator Strategic Management Project n

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1l A6tTJD069) 3M pp,

Steam Generator Progress Report Revision 10 Research Project RP3580-06 Final Report, November 1994 i

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Prepared by ,

ENERGY MANAGEMENT SERVICES P.O. Box 5493 Little Rock, Arkansas 72215 Principalinvestigator B. L Dow, Jr.

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i Prepared for Electric Power Research Institid o 3412 Hillview Avenue 2 Palo Aho, Califomia 94304 EPRI Progect Manager R. C. Thomas Steam Generator Management Nuclear Power Group

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DISCLAIMER OF WARRANTIES AND LIMITATION OF LIABILITIES This report hs prepared by the organization named below as an account of work sponsored by the Electric Power Research Institute, Inc. (EPRI). Neither EPRI, members of EPRI, the organization named below, nor any person acting on their behalf: (a) makes any warranty, express or implied, with respect to the use of any information, apparatus, method, or process disclosed in this report or that such use may not infringe privately owned rights; or (b) assumes any liabilities with respect to the use of, or for damages resulting from the use of any information, apparatus, method, or process disclosed in this report.

Prepared by:

Energy Managernent Services, Inc.

Little Rock, Arkansas

. ... . . . .. .- - - . . - - ..... - -.. - - --. . - . - .- . = . - - . . -...

ABSTRACT The status of steam generator problems is presented through December 1993. Older problems such as wastage and denting are reasonably under control. Newer problems include SCC /lGA in tubesheet crevices, at the tube support plates, and under tubescale in the freespan region. Additional damage mechanisms include primary side cracking in high stress regions, pitting and tube fretting. Lost generation due to steam generator j outages is presented along with steam generator problems reported at operating plants, I the number of steam generator tubes plugged and sleeved, the number of forced l outages caused by tube leaks, the plants which have chemically cleaned steam generators, and the plants which have replaced steam generators. '

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ACKNOWLEDGMENTS Grateful appreciation is extended to the many utility organizations, vendors and individuals who supplied data used in this report.

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CONTENTS I

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i Section Page 1 Int r od u cti o n . . .. .. . .... . . ... . . .. .. .. .. ... . . . . ... . . ... . . . .. . . ~ . -~ ~. . ~ . . - ~ ~ ~ ~ ~ ~ - . 1-1 l 2 Cu rrent Stat us . . . ... . . . .. . . . .. .. .. . . .. .. . . .. . ... . . . . . . . .. . ... .. . . . .. .. . . . . . . . . . . .. . . . .. . .. . . . . . . .. ... . . 2-1 i

I l- -3 Lost Ge ne rati o n .. . . .. . . . . . .. ... . .... . . . . . . . . . .. . . . . ... . .. . . .. .. . . .. . . . . . . . . ... . .. . . . . . . . . .. . . . . . . . ... 3-1 4 For cod O uta ges .. .. .. .. . . . .. ... . . . . . . . . .... .. ... .... .. . .. . . .. . . . .. . . . ... . . . . . . . . . . . . . . . . . .. . . . . .. . . . . 4-1 5 Plants Re portin g Problems ................................................................... 5-1 6 Tu be Fratti ng and Wea r ............. .................... .... .... ... .. .. . ... . ...... ..... .......... 6-1 l 7 Steam Generator Tu be Sleevin g ............................................................ 7-1 8 Steam Generator Chemical Cleaning.................................................... 8-1 9 Steam Generator Replacement ............................................................. 9-1 10 Ref er o n ce s . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . .

Appendix A Historical Tube Plugging Data l

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1 FIGURES  !

Figure Page 2-1 World Wide Percentage of Plants Plugging ......................................... 2-4 Steam Generator Tubes 2-2 World Wide Percentage of Steam Generator Tubes Plugged............. 2-5 2-3 World Wide Number of Steam Generator Tubes Plugged................... 2-6 2-4 World Wide Causes of Steam Generator Plugging.............................. 2-7 2-5 United States Causes of Steam Generator Plugging ... ...................... 2-8 2-6 Non-U.S. Causes of Steam Generator Plugging .................................. 2-9 3-1 U.S. Capacity Factor L oss Due to ......................................................... 3-2 Steam Generator Problems 3-2 U. S. PWR Capacity Factor Components (1980-84) ............................. 3-3 3-3 U. S. PWR Capacity Factor Components (1993) .................................. 3-4 j 4-1 U. S. Steam Generator Tube Leak Forced Outages ............................. 4-3 l

4-2 U. S. Steam Generator Tube Leak Forced Outage Rate ...................... 4-4 a

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TABLES 1

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l Table Page l 3-1 Steam Generator Program Goals .......................................................... 3-5 4-1 U. S. Tube Laak Forced Outages (1993) ............................................... 4-2 5-1 Status of Units Reporting Problems (Dec. 19 9 3) .. . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . 5-2 i

l 5-2 Units Reporting Steam Generator Problems ....................................... 5-11 5-3 Status of U. S. Steam Generators (Dec. 199 3) . . . . .. . . . . . . . . ... . .. . . .. . . . . . . . . . . .. . 5-12 6-1 Tu be Fretti ng a n d Wear . .. .. . . . . . . . . . .. . . . . . . . . .. . . . . .. ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .. . . . . . . 6-2 7-1 Sleevi n g Expe rie n ca . . . ... . . .. . . .. .. . . . .. . . . . . . . . . . . . .. . . . . . . . . . .. .. . . . . . . . . . .. . .. .. .. . . . .. . . . .. . . . 7-2 7-2 Maj or Sleeving Operation s .................................................................... 7-8 i

7-3 Major Nickel Platin g Operations ............................................................ 7-11 1  !

8-1 EPRI SGOG Chemical Cleaning (Dec. 199 3) . .. . . . . . . .. . . . .. . . . . . . . . .. . . . . . . . . . . . . . . 8-2 8-2 KWi! and EDF Chemical Cleaning (Dec. 199 3) . . . . .. . . . . . . . . .. . . . . . . . . .. . . . . . . . . .. 8-3 t

9-1 Replacement Steam Generators ........................................................... 9-2 9-2 Planned Steam Generator Replacements ............................................ 9-4 (Orders Placed) l- xi

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INTRODUCTION This report is intended to provide EPRI members with the status of operating PWR steam generators. Considerable progress has been made since the formation of the EPRI Steam Generator Owners Group (SGOG 1) in early 1977. At that time the industry was beginning to recover from wide scale steam generator tube wastage but was plagued by even wider scale tube denting. In addition to denting, stress corrosion cracking and apparent fatigue cracking were reported at a number of l operating units. By the end of the SGOG I effort in December 1982, the causes and i remedies for denting were much better understood and the occurrences of denting l had dramatically decreased.

l l As these older problems were brought under control, newer problems were emerging.

l These problems included tube cracking and intergranular attack in the open l

tubesheet crevices, primary side tube cracking at high stress locations, pitting between the tubesheet and first support plate, and tube fretting in preheater sections l

l and at antivibration bar locations. SGOG ll followed SGOG I and focused on these newer problem areas.

l l

Together utility members in SGOG I and SGOG 11 pledged more than 65 million dollars to help understand and resolve steam generator problems. The SGOG ll project formally ended December 30,1986. The work started by SGOG I and SGOG ll has been continued in the EPRI base program. A five year Steam l

Generator Reliability Project (SGRP) began January 1,1987 and was extended through December 1992. EPRI steam generator activities are now managed by the Steam Generator Strategic Management Project. Steam generator, performance goals will be set and monitored to ensure that the Steam Generator Strategic l

Management Project addresses the most significant problems facing nuclear utilities.

Although significant progress has been made in resolving steam generator problems, considerable work still remains. Steam generator forced outages, tube degradation, and steam generator replacements are still occurring. This report is an updated status of the progress that has been made through December 31,1993.

It is intended that this report be updated annually through the duration of the Steam Generator Strategic Management Project.

[

A report such as this is only as good as the data from which it is generated. Data for

! 1993 was collected directly from U.S. and foreign utilities. Individual data sheets for each plant were sent to the Technical Advisory Group members for confirmation. It is 1-1

_.______.____._____.___.7 .. _;

Intratuction hoped that this process will provide the most accurate data possible. If you have any corrections or suggestions, please send them to the author at the address listed on the front page. This report contains the best available data at the time of printing and in-cludes information from the EPRI Steam Generator Data Base, the Atomic Energy of Canada Limited, the Nuclear Regulat.ory Commission and individual utilities. Data l

trending is used to illustrate the progress that has been made and the problems that still exist. Appendix A provides a history of tube plugging and sleeving at each plant.

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1 2 l CURRENT STATUS The Atomic Energy of Canada Umited (AECL) has been keeping track of the causes of tube plugging since 1971 (1). Much of the data prior to 1985 presented in this report is from information collected by AECL. The data for 1993 was collected directly from the U.S. and foreign utilities whose plants are listed.

Figure 2-1 shows the percentage of reactors in the surveys which plugged tubes from 1976 through 1993. During the last 10 years the average percentage of reactors plugging steam generator tubes has been 47% Figure 2-1 shows that this trend has not changed significantly. In 1993,56% of the operating units were required to plug steam generator tubes.

Figure 2-2 shows the tubes plugged per year as a percentage of the total number of steam generator tubes in service. The number of tubes included in the survey has risen from less than 200,000 in 1971 to more than 3.4 million in 1993. The percentage of tubes plugged per year over the last ten years has averaged .24 percent. This trend has decreased from an average of .39% for 1971 through 1979, to .24% for 1983 through 1993. Steam generator degradation is still widely occurring, however, and utilities are required to take expensive remedial action. Although the ten year average of .24 percent may not appear significant, over a 30 or 40 year steam generator life this amounts to plugging 7.2% to 9.6% of the available tubes. Even though this average value might be acceptable, not all steam generators are degrading equally. Extensive plugging efforts over the last few years have occurred at the following units:

• 548 tubes in 1990 at Farley 2 due to primary side SCC and secondary side IGA

• 617 tubes preventively plugged in 1990 at Palisades due to AVB fretting concems

• 624 tubes in 1990 at ASCO 1 due to primary side SCC and secondary side IGA

• 468 t'ubes in 1991 at St. Lucie 1 due to secondary side SCC /lGA

• 1580 tubes in 1991 at Trojan due to secondary side SCC /lGA

• 600 tubes in 1991 at North Anna 1 due to secondary side IGA and primary side SCC

• 760 tubes in 1991 at Beaver Valley 1 due to secondary side SCC /lGA

• 331 tubes in 1991 at Bugey 5 due to primary side SCC 2-1

Cunent Status

• 400 tubes in 1991 at Angra 1 due to secondary side SCC /lGA

• 306 tubes in 1992 at ANO-1 due to secondary side SCCMGA

• 354 tubes in 1992 at D.C. Cook 1 due to secondary side SCC /lGA

• 527 tubes in 1992 at North Anna 2 due to secondary side SCC /lGA

• 612 tubes in 1992 at Oconee 1 due to secondary side erosion / corrosion

• 353 tubes in 1992 at ASCO 1 due to secondary side SCC /lGA

• 648 tubes in 1993 at V. C. Summer due to secondary side IGA and primary side SCC

• 620 tubes in 1993 at North Anna 2 t.'ue primarily to secondary side IGA and primary side SCC

• 608 tubes in 1993 at Byron 1 due primarily to secondary side IGA and primary side SCC

• 740 tubes in 1993 at Catawba 1 due primarily to secondary side IGA and primary .

side SCC

• 431 tubes in 1993 at ASCO 2 due primarily to secondary side IGMGSCC

• 440 tubes in 1993 at Bruce-A 2 due primarily to secondary side IGMGSCC Degradation rates at these units are higher than the average rate. Tube degradation has already caused the steam generators to be replaced at eighteen nuclear units.

Figure 2-3 shows the total number of tubes plugged per year. In 1985,6093 tubes were plugged. This was due in part to the 1880 tubes plugged in French steam generators due to actual or anticipated SCC in the U-bend region and 1081 tubes plugged in U.S.

steam generators due to actual or anticipated AVB wear. In 1986 a total of 3669 tubes were plugged. This reduction was due in part to less preventive plugging and an  ;

increase in the number of tubes sleeved in 1987 a total of 4822 tubes were plugged. l This increase from 1986 was due in part to fewer tubes being sleeved and an increase in primary side SCC and secondary side IGA at a number of U.S. plants. In 1988 a total of 6309 tubes were plugged. This increase from 1987 was due in part to a larger number of tubes plugged in the U.S. and Spain due to primary side stress corrosion cracking and a larger number of tubes plugged in Sweden and Japan due to secondary side IGA. In 1989 a total of 6106 tubes were plugged. Compared to 1988, the number of tubes plugged due to I.D. SCC decreased slightly while the number of tubes plugged due to

.O.D. SCC /lGA increased slightly. In addition, almost seven hundred tubes were plugged in the French 1300 MW units due to denting caused by debris located on top of the tubesheet. in 1990,7412 tubes were plugged. Compared to 1989, the number of 2-2

I l

Current Status

! plants plugging tubes increased, and the number of tubes plugged due to primary side

SCC and fretting increased, in 1991,9550 tubes were plugged. A small part of this i j increase was due to adding the PWR units from Germany and Korea to the report.

Looking at the same units for each year, approximately 30% more tubes were plugged )

4 in 1991 compared to 1990. The largest increases in plugged tubes were due to secondary  !

side SCC /lGA, especially at support plate intersections, in 1992 a total of 7860 tubes l 4 were plugged. This is approximately 20% fewer than were plugged in 1991. The ,

reduction in tube plugging was almost equally divided between U.S. and non U.S.  !

plants. In 1993 a total of 10,317 tubes were plugged. Part of this increase was due to l i adding twenty Ontario Hydro units to the survey. Looking at the same number of units each year, approximately 25% more tubes were plugged in 1993 than 1992. This was primarily due to a larger percentage of units plugging tubes in 1993 and a larger number i of tubes plugged due to primary side SCC and secondary side IGA in the U.S. l 1

) Figure 2-4 shows the causes of steam generator plugging on a world wide basis from 1973 to 1993. When the SGOG l was formed in early 1977, denting was responsible for almost 90% of the tube plugging. By the end of SGOG I in 1982, this figure was less than 2%. During the existence of SGOG 11, SCC /lGA in the tubesheet, primary side l i

SCC, pitting, and fretting surfaced as the primary causes of plugging. Although significant ,

i progress has been made with wastage and denting, the data in this section shows that the percentage of reactors plugging tubes and the percentage of tubes being plugged each year has remained relatively constant. In 19931.D. stress corrosion cracking 1 (21.9%), O.D. stress corrosion cracking and intergranular attack (41.2%), and fretting I (5.0%) accounted for over 68% of all the tubes plugged. Figures 2-5 and 2-6 show the causes of steam generator tube plugging separated into U.S. and non U.S. plants.

Pitting and fretting have been slightly more of a problem for U.S. plants while primary side stress corrosion cracking, SCC (ID), has been slightly more of a problem for non-U.S. plants. The diversity of these damage mechanisms means that no one solution is likely to resolve all problems. The task of maintaining steam generator integrity

continues to remain formidable and challenging. The Steam Generator Strategic Management Project will utilize the results of earlier programs to focus on the resolution of current damage mechanisms.

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3 Figure 2-6 p Non-U.S. Causes of Steam Generator Plugging g t

3 LOST GENERATION One of the real incentives for improving steam generator integrity is the increased electrical generation due to improved capacity factors. In fact, over the last ten years, steam generator problems in the United States rank second behind refueling outages as the most significant contributor to lost generation.

During the last ten years, the capacity factor loss for U.S. PWR's due to steam generator problems has averaged 2.8%. In 1993 the capacity factor loss was 1.9% (see Figure 3-1).

From 1980 to 1984 the averago U.S. PWR capacity factor was 57.2%. During this time steam generator problems resulted in a reduction in the average U.S. PWR capacity factor of 5.7 percent. Of this amount, Figure 3-2 shows that 1.5 % was due to steam generator replacement and 4.2 % due to steam generator tube problems. Figure 3-3 shows the improvement in U.S. PWR capacity factors (73.0%) in 1993. Figure 3-3 also shows the reduction in lost generation (.18%) due to steam generator replacement and in lost generation (1.73%) due to steam generator tube problems.

Using the 1980 - 1984 average values for tube plugging, sleeving, radiation exposure, and lost generation due to steam generator outages and replacement, the EPRI Steam Generator Project Office initially established steam generator performance goals for the period 1986 through 1990 and then extended these goals through 1991. Revised performance goals are now being established. Table 3-1 shows that steam generator performance in 1993 relative to lost generation was ahead of previous target goals and resulted in a conservatively estimated savings of $132 million. The number of tubes plugged in 1993 exceeded (was worse than) previous target goals, while the number of tubes sleeved did not exceed (was better than) previous target goals As a result of this, the estimated radiation exposure slightly exceeded the target goal. The expenditures for these three items result in an estimated savings of an additional $16 million.

Combining the tube plugging and sleeving results with the improvements in electrical generation results in a savings of approximately $148 million when compared with the average annual expenditures in the 1980 to 1984 time frame. These savings are conservatively estimated and indicate that utilities are making progress in managing steam generator degradation. However, a number of utilities are planning steam generator replacements and this needs to be factored into new target goals.

J 3-1

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Table 3-1 i Steam Generator Program Goals r

I.

U.S. YEARLY AVERAGES SAVINGS i ACTUAL TARGET ACTUAL TARGET ACTUAL 1980-1984 1986-1991 1993 1986-1991 1993 l

LOST CAPACITY to. COST NO. COST NO. COST SAVINGS SAVINGS i (MILLION $) (MILLION $) (MILLION $) (MILLION $) (MILLION $)

i S/G REPLACEMENT 1.5% $51 .5% $17 .13% $4 $34 $47 FORCED & EXTEPOED 4.2% $145 2.5% $86 1.73 % $60 $59 $85  ;

OUTAGES i

REPAIR & MAINTENANCE ,

i TUBE PLUGGING 2242 $5 2000 $4 6099 $12 $1 ($7)

TUBE SLEEVING 3181 $32 'J000 $30 847 $8 $2 $24  ;

RAD. EXPOSURE 4670 mr $5 4000 mr $4 5500* mr $6 $1 ($1) ,

n

• Estimated , ,

V

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l i

i 4

FORCED OUTAGES Another indication of the ability of utilities to successfully manage steam generator issues is the number of forced outages caused by steam generator tube leaks. Forced outages not only cause a loss of production, but are expensive because repair teams have to be mobilized on short notice. In 1993 there were four forced outages in the U.S.

due to steam generator tube leaks (Table 4-1). This compares with an average of 10 forced outages per year from 1976 to 1993 (Figure 4-1). By dividing the number of forced outages per year by the number of operating PWR's, a tube leak forced outage rate can be determined. in 1993 the forced outage rate was .06 which means there was one tube leak outage for every seventeen generating PWR's. The average tube leak forced outage rate per year in the U.S. from 1976 to 1993 was .22 or approximately one i tube leak outage per year for every five operating PWR's (Figure 4-2). Although Figure 4-2 shows an improving trend, the long range goal of utilities is to have no forced i outages due to steam generator tube leaks. The verdict is still out on whether or not this  !

goalis achievable.

4-1

Fored Outages TABLE 4-1 U. S. TUBE LEAK FORCED OUTAGES (1993)

Plant Date Leak Outage Probable Rate Duration Cause Palo Verde 2 3/93 240 gpm 105 days Freespan IGSCC in upper bundle Kewaunee 6/93 100 gpd 7 days Leaking tubesheet plug Mc Guire 1 8/93 185 gpd 35 days Sleeve failure Braldwood 1 10/93 300 gpd 18 days Freespan crack between 2 AVB's 4-2 1

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5 1 l PLANTS REPORTING PROBLEMS l

l

[

EPRI has been tracking reported plant problems since early 1977. Table 5-1 shows the status of reported problems as of December 1993. Table 5-2 compares the 1993 results with those from 1977 and 1982. The largest increases in reported problems are I.D. initiated cracking, O.D. Initiated SCC /lGA, and tube fretting. Over l

fifty percent of the units covered in this report indicate some occurrence of tube fretting and wear. The Steam Generator Strategic Management Project is focused on addressing these problems. Although the type of information provided in Tables 51 and 5-2 is useful for general trending of reported problems, the criteria l for reporting is not always consistent and the data is difficult to verify. A more I definitive method at looking at problem areas is to review the number of tubes l plugged at each unit and the reported damage mechanism causing the tube to be removed from service. Appendix A provides this information on a yearly basis for l each plant. A summary of the number of tubes plugged and sleeved at U.S. plants l is provided in Table 5-3.

i 5-1

e Y'

w Table 5-1 Status of Units Reporting Problems (Dec.1993) e 5::.

A REPORTED PROBLERIS k3C i

Plant Date NSSS Westege Den 8ng Den 8ng Pitling SCC SCC IGA IGA Freeing H4pt Oy Erosion Water- Maistwo Comi Sup Plate Tubeeheet (OD) (10) (OD) (10) Fe8l pas hemmer Comyover t Almerer 1 Dec-81 W O O O Almerer 2 Sep-83 W O O O Angra t Dec-84 W O O O O i ANO 1 Dee-74 8 O O O O t l

ANO 2 Nov-80 B O O O O O Asco 1 Dec-84 W O O O O Asco 2 Mer-86 W O O O  ;

Aluche 1 Mar-74 KWU O O i Beeva veney 1 Oct-76 W O O O O O O  !

Seever VeBoy 2 Nov-87 W O O O BeGewille 1 Jun-88 F O l BeNewtie 2 Jan-89 F 0 i Bernau 1 (Org) Dec-49 W O O O  !

Bernau 1 (Rpl) Apr-93 F [r Bernau 2 Mar-72 W O O O O Bites A Aug-74 KWU O O Bites B Apr-76 KWU O O O O Bleyele 1 Dec-81 F O O O i Bleyels 2 FetNB3 F O O O Blerais 3 Nov-83 F O O O Bleyeis 4 Oct-83 F O O O Borssele Jul-73 KWU O O Breldwood 1 Jul-88 W O O  !

Braidwood 2 Oct-88 W O Brokdorf Oct-86 KWU j Sep-77 Bruce-A 1 AECL O Bruce-A 2 Sep-77 AECL O O O i Brum-A 3 Feb-78 AECL O

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                                                                                                                                                                                                                                                  *i Table 5-1 Status of Units Reporting Problems (Dec.1993) cont.                                                                                                                                                                                               i i

f REPORTED PROBLEMS Date NSSS Westege Den 8ng Den 8ng Pltting SCC SCC IGA IGA Fret 8ng lediCy Erosion Water- Maleswo Plant ' Sup Ptete Tubosheet (tD) (00) (10) Faugue hemmer Carrryover Comi (OD) i i Jan-78 F O O O O O Fossenheim 1 F 0 0 0 0 0 0 Fessenheim 2 Apr-78 7 Rememme 1 Dec-88 F 0 Rememelo2 Mar-87 F 0 0 O  ; Ft. Calhoun Sep-73 C O O Oct 75 M O O Genkel1 Genkel2 Mar-81 M Jul-70 W O O O O O O Ginne Gollech 1 Jun-90 F Feb-79 KWU O O Googeri Grafenrheinfeld Dec-81 KWU Gravegnes 1 Nov-80 F O O O O Dec-80 F O O O O Greweenes 2 Grevognes 3 Jun-81 F O O O O Oct-81 F O O O O Greweenes 4 Jan-85 F O O O Graveunes 5 Nov-85 F O O , Grevetnes 6  ; Aug-84 KWU O Grohnde Ikete 1 Sep-77 M O O @ 3 t Mar-82 M O Ikete 2 W O O O inden Point 2 Aug-74 W O O O O O Inden Point 3 (Org) Aug-76 incSen Point 3 (Rpl) Jun-89 W j KWU = i

,     leer 2                Jan-88                                                                                                                                                                                                              "

Aug-69 W O O O O  ! Jose Cabrere Kewaunee Jun-74 W O O O O O k  ! Jun-n W O O O f Kor:1 Jul-83 W O O O Kori2 i r 4 ie

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Tatde 5-1 Status of Units Reporting Protdems (Dec.1993) cont. i REPORTED PftOBLEMS Plant Date NSSS Westege Donung DenOng Pilling SCC SCC IGA IGA Frateng Hidt Cy Erosion Water- Moistuve Comt Sup Plate Tubesheet (00) (ID) (OD) (tD) Faugue hemmer Carrryover l ON3 Dec-91 M Ohl 4 Feb43 M Pensados (Osg) Dec-71 C O O O O O PeNeedes (Apl) Mar 41 C Pelo Vente 1 Jan-86 C O O O O Pelo Verde 2 Sep-86 C O O O O Pelo Verde 3 Jan-88 C O O O O Pelueli Dec-85 F O O O Peluol2 Dec45 F 0 0 0 Peluel 3 FetN16 F 0 0 0 Peluel 4 Jun-86 F 0 0 0 NJi 1 Dec-90 F Penly 2 Feb-92 F Philppsburg 2 Dec-84 IONU Pickering-A 1 Jul-71 AECL 0 Picke-.+A 2 Dec-71 AECL 0 Pickering-A 3 Jun-72 AECL Picketing-A 4 Jun-73 AECL Pickering-B 5 May-83 AECL O h Pickeetng-B 6 Foo44 AECL O g Pickestng-B 7 Jan-85 AECL p Pickering-B 6 FotNI6 AECL wl Point Beach 1 (Org) Dec-70 W O O O O O $ Point Beach 1 (F%d) Apr44 W O 5: Point Beech 2 Oct-72 W O O O O Prairlo Island 1 Dec-73 W O O O O O E Prefrie telend 2 Dec-74 W O O O Rancho Seco Apr-75 B O O O O h 1

j I 4 Plants Reporting Problems - l o o o 9 o o 1 9 Iu. I 0 00 0 l o oo o 0000 0000 0000

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a Table 5-1 Status of Units Reporting Problems (Dec.1993) cont. REPORTED PROBLEMS f Plant Date NSSS Westege Doneng Den 8ng Pitung SCC SCC IGA IGA Freteng High Cy Emelon Weier- Moisture com1 Sup Plate Tubesheet (00) (10) (OD) (ID) Feegue hemmer Certryover Suny 1 (Rpi) Jul-81 W O Suny 2 (Org) May-73 W O O O O Suny 2(Rpl) Sep-80 W O Takeheme 1 Nov-74 W O O O O Takeheme 2 Nov-75 M O O  ; Takehema 3 Jan-85 M O [ , Takehema 4 Jun-85 M O Three Mus Island 1 Sep-74 B O O O i O  ! Thange1 Sep-75 W O O O O O O O Tlhenge 2 Feb-83 FO O O O Thange3 Nov-85 FC O O O O Tomorf 1 Jun-89 M Tomert2 Apr-91 M ' Tricesan 1 Dec-80 F O O O O Tricostin 2 Dec-80 F 0 0 0 0 Tricostin 3 May-81 F 0 0 Tricostin 4 Nov-81 F O O O O l Trulo 1 Aug-88 K t Trojan May-76 W O O O O @ Tsuruos 2 Feb-87 M O ii  ! Turkey Point 3 (Org) Dec-72 W O O O O t Turkey Point 3(Rpl) Apr-82 W O Turkey Point 4 (Org) Sep-73 W O O O O O O g- [ r Turkey Point 4 (Rpl) May-83 W O O :n  ! oo Uqin 1 Sep-88 F Uqin 2 Sep-89 F k E O . Unterweseer Oct-78 IONU I Vendosos 2 Dec-87 W . O k i

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           .                                                                                                  Plants Reporting Problems TABLE 5-2 UNITS REPORTING STEAM GENERATOR PROBLEMS DATE                                                3/77              8/82                 12/93 l

l' NO. UNITS: 52 99 235 REPORTED PROBLEMS: l- Denting i -Tube Support Corrosion 15 30 36 I -Tube Sheet Corrosion 6 12 50 l 4 Tubing Corrosion ! -Wastage 19 28 39

                   -Pitting                                            0                       3               16
                   -ID Cracking                                        1                       22              102 i                   -OD SCC /lGA                                        6                       22              85 Mechanical Damage t                 ' Fretting
                   -                                                   9                       15              128 l                   -Fatigue Cracking                                   3                       4               15
                   -Impingement                                        0                       2               10
  .                No Problems                                         26                      32              48 No problems after 5 years ops                       1/14                     4/57           20/205 (no of units / no. > 5 yrs. ops) .

Units reporting no problems after five years of operation 3r77 8/82 12/9 3

  .                Trino           Kewaunee                  Bruce-B 5                         Obrigheim (Rpi)

Miharna 3 Brokdorf Philippsburg 2 Neckarwestheim Chinon B 3 Pickering-A 3

Davis Besse Cruas 3 Pickering-A 4 I Cruas 4 Pickering-B 7 Genkal2 Pickering-B 8 t Grafar.rheinfeld Robinson 2 (Rpi)

! Isar 2 Trillo 1 Lovilsa 1 Uljin 1 Loviisa 2 Wolsing 1 5-11 l

Plants Reporting Problems Table 5-3 Status Of U.S. Steam Generators (Dec.1993) COMM. NO.OF SG NO. OF TUBE NO.OF NO. OF OPS. LOOPS MODEL TUBES MATERIAL TUBES SLEEVES PER S.G. PLUGGED BABCOCK & WILCOX 2 OTSG 15531 inc400S 676 978 Arkansas Nuclear One 1 Dec-74 Mar-77 2 OTSG 15531 inc400S 162 0 CrystalRiver3 Jul-78 2 OTSG 15547 Ine-600S 438 212 Davis Besse Jul-73 2 OTSG 15531 inc400S 1266 475 Oconee 1 Oconee 2 Sep 74 2 OTSG 15531 inc400S 318 228 Dec-74 2 OTSG 15531 Inc400S 622 247 Oconee 3 Apr 75 2 OTSG 15547 Ine-600TT 221 508 Rancho Seco (Retired) Sep-74 2 OTSG 15531 inc400S 1641 502 Three Mile Island 1 l COMBUSTION ENG. Arkansas Nuclear Ona 2 Mar 40 2 2815 8411 inc400MA 417 444 Calvert Cliffs 1 May-75 2 67 8519 inc-600MA 195 0 Calvert Cliffs 2 Apr-77 2 67 8519 inc400MA 133 0 Fort Calhoun Sep-73 2 N/A 5005 Ino-600MA 110 0 Maine Yankee Dec-72 3 67 7703 inc-600MA 264 0 Milstone 2 (Repl.) Dec-75 2 BWC 8523 inc490TT 0 'O Palisades (Rept.) Dec-71 2 N/A 8219 inc-600MA 618 0 Palo Verde 1 Jan-86 2 80 11012 inc-600MA 323 0 l Palo Verde 2 Sep-86 2 80 11012 inc400MA 558 0 Palo Verde 3 Jan-88 2 80 11012 Ine-600MA 235 0 San Onofre 2 Aug-83 2 3410 9350 Ine-600MA 646 0 San Onofre 3 Apr-84 2 3410 9350 Ine-600MA 61,4 0 5-12 l-

a . Plants Reporting Problems Table 5-3 Status of U.S. Steam Generators (cont.) COMM. NO.OF SG NO. IE NO OF NO.OF OPS. LOOPS MODEL TUE AILHIAL TUBES SLEEVES PER Ln PLUGGED COMSUSTION ENG. St. Lucie 1 Doo 76 2 67 8519 inc-600MA 1818 0 St.Lucie 2 Aug-83 2 3410 8411 inc-600MA 467 0 Waterford 3 Sep-86 2 3410 9350 inc-600MA 518 0 WESTINGHOUSE Beaver VaRey 1 Oct 76 3 51 3388 Inc-600MA 1620 0 Beaver Valley 2 Nov-87 3 51M 3376 inc-600MA 121 0 Braidwood 1 Jul-88 4 D4 4578 inc-600MA 333 0 Braidwood 2 Oct-88 4 D6 4530 Ine-600TT 29 0 Byron 1 Sep-85 4 D4 4578 inc-600MA 847 0 Byron 2 Aug-87 4 D6 4530 inc-600TT 104 0 Celaway Dec 84 4 F 5626 inc-600MA 141 0 Catawba 1 Jun-85 4 D3 4674 inc-600MA 1480 183 ) Catawba 2 Aug-86 4 D6 4530 inc-600TT 135 0 Comenche Peak 1 Aug 90 4 D4 4578 inc-600MA 31 0 Comanche Peak 2 Aug 93 4 D6 4570 Ine-600TT 20 0 Carmecticut Yankee Jan48 4 27 3794 Inc-600MA 1228 0 1 Cook 1 Aug 75 4 51 3388 inc-600MA 952 1840 Cook 2 (Rept.) Jul-78 4 54F 3592 Inc 690TT 0 0 Diablo Canyon 1 May-85 4 51 3388 Ine-600MA 43 0 Diablo Canyon 2 Mar-86 4 51 3388 ine-600MA 76 0 Farley 1 Dec.77 3 51 3388 Inc-600MA 358 136 i 5-13 l.

Plants Reporting ProNerns Table 5-3 Status of U.S. Steam Generators (cont.) c0MM. NO. 0F SG NO. 0F TUBE No. 0F NO. OF OPS. ' LOOPS MODEL TUBES MATERIAL TUBES SLEEVES PER 5.G. PLUGGED WESTINGHOUSE 3 51 3388 Ire 800MA 710 275 Farley 2 Jul-81 2 44 3280 Ino 800MA 483 1963 Ginne Jul-70 Aug-74 4- 44 3282 ino400MA 1131- 0 Inden Point 2 Aug 76 4 44F 3214 Irm 690TT C 0 inden Point 3 (Rept.) Jun 74 2 51 3388 Ino400MA 517 4274 Kowounee 4 D2 4674 Inc>800MA 1819 841 McGuise 1 Doo-81 Mer 84 4 D3 4674 Ino400MA 1387 815 McGuire 2 Apr-86 4 F 5626 Ino400TT 28 0 MSetone 3 North Anno 1 (Rept.) Jun 78 3 54F 3592 in m TT C 0 Doo-80 3 51 3388 inc-800MA 1332 0 North Anno 2 Point Seech 1 (Rept.) Doo-70 2 44F 3214 ino400TT 5 0 Oct 72 2 44 3280 Ino400MA 622 3895 Point Beach 2 Doo 73 2 51 3388 ino400MA 193 319 Preide leland 1 Dec-74 2 51 3388 Ino400MA 240 0 Prairie leiend 2 Rotuneen 2 (Repl) Mar-71 3 44F 3214 Ino400TT 5 0 Je. 4 51 3388 Ino400MA 508 0 Seiem 1 Salem 2 JuW*1 4 51 3388 inc400MA 478 0 JerWie 3 27 3794 Ino400MA 1458 8929 Sen Onotre 1 (Retired) i Seabrook Jul-90 4 F 5626 in M TT 24 0 Secpoyah 1 Jul 81 4 51 3388 Ino400MA 181 0 Sequoyah 2 Jun-82 4 51 3388 inc400MA 434 0 5-14

                                                                   ~ PlantsReportingProblems Table 5-3 Status of U.S. Steam Generators (cont.)

cOMM. NO.OF SG NO. 0F TUBE NO.OF NO.OF OPS. LOOPS MODEL TUBES MATERIAL TUBES SLEEVES PER S.G. PLUGGED WESTINGHOUSE l Shearon Hanis May-87 3 D4 4578 inc-600MA 35 0 South Texas 1 Aug-88 4 E 4850 inc400MA 66 0 { South Texas 2 Jun-89 4 E 4850 Inc400MA 18 0 Summer Jan-84 3 IX3 4674 inc-600MA 2221 735 Suny 1 (Rept.) Dec 72 3 51F 3342 Inc400TT 14 0 Suny 2 (Rept.) May-73 3 51F 3342 inc400TT 5 0 . l Trojan (Redred) May-76 4 51 3388 inc400MA 2444 1063 i' Turkey Point 3 (Rept.) Dec-72 3 44F 3214 inc400TT 62 0 Turkey Point 4 (Rept.) Sep-73 3 44F 3214 inc-600TT 33 0 Vogtle 1 May-87 4 F 5626 inc400TT 15 0 Vogue 2 May-89 4 F 5626 inc400TT 15 0 Wolf Creek Sep-85 4 F 5626 inc-600TT 44 0 Yankee Rowe (Redred) Jul41 4 13 1620 304 SS 334 0

                                               ~

l Zion 1 Dec 73 4 51 3388 inc400MA 948 806 l Zion 2 Sep-74 4 51 3388 Inc-600MA 525 252 1 5-15

l 6 TUBE FRETTING AND WEAR The Steam Generator Strategic Management Project has also been studying steam generator vibration induced tube wear. This wear is caused by relative movement between the tube and support structure and is enhanced by clearances provided for ease of manufacturing. Depending on the tube dynamics, tube leaks due to fretting and wear can be produced within a relatively short period of time. Fifty-four percent of the nuclear units covered in this survey report some type of fretting and wear problem. In 1993,516 steam generator tubes were plugged due to fretting and wear. In order to better understand the magnitude and severity of this problem, additional information on the number of indications, general location and wear rate (mils / year) was ' requested from TAG members. Table 6-1 summarizes the information received. As expected, the majority of fretting and wear indications reported are in the preheater ' areas and at the AVB intersections. The reported wear rates ranged from .3 to 3.4 mils per year with a maximum wear rate reported by the Japanese of 12.1 mils per year. IMs l realized that Table 6-1 represents only a limited amount of industry data and it is hoped that additional information on the number of indications and wear rates can be obtained and reported in future publications. l l 4

7kbe Frettingand Warr Table 6-1 Tube Fretting and Wear GEbERAL NO.0F NO.0FTUBES WEAR RATE PLANT INDICATIONS PLUGGED (mils / year)

' AREA 180 25 0.6 Almaraz 1 Preheater (<1992) 228 16 1.1 Preheater (1992) 244 11 0.6 l Preheater (1993) 278 12 1.5

AVB (<1992) 378 0 1.1 AVB (1992) 371 6 0.6 AVB (1993) 3 139 17 1.3 Almaraz 2 Preheater (<1992)

Preheater (1992) 144 24 1.7 l 192 4 1.6

AVB (<1992)

AVB (1992) 205 2 0.5 ANO-2 Batwing 332 60 - ASCO 1 Preheater (<1992) 79 4 2.8 Preheater (1992) 105 6 2.2 Preheater (1993) 105 10 2.6 AVB (<1992) 221 13 2 AVB (1992) 254 5 1.3 AVB (1993) 249 12 2.2 ASCO 2 AVB (<1992) 52 2 - AVB (1992) 67 0 0.6 AVB (1993) 93 3 1.3 Beaver Valley 1 AVB 10 10 - Cold Leg 88 0 <3.0 Beaver Valley 2 AVB 13 0 - Connecticut Yankee AVB 184 16 0.6 Diablo Canyon 1 AVB 54 0 -

         ' Diablo Canyon 2        AVB                                       28          0                    -

Jose Cabrera. AVB (<1992) 135 19, 0.3 AVB (1992) 147 2 0.5 Millstone 3 AVB 61 10 -

        ,6-2

Tkbe Fretting and War Table 6-1 Tube Fretting and Wear (cont.) PLANT GEERAL NO.OF NO.OFTUBES WEAR RATE AREA INDICATIONS PLUGGED (mils / year) Palo Verde 1: Eggerate 127 0 - Batwing 121 8 - Verticle Strap 98 6 - Palo Verde 2 Eggerate 862 35 - Batwing 723 13 - Verticle Strap 578 10 -

             . Palo Verde 3          Eggerate                                165            6                          -

Batwing 211 8 - Verticle Strap 82 5 - St. Lucie 2 Diagonal & Vertical 478 353 - Straps Sequoyah 1 AVB 44 3 3.1 Sequoyah 2 AVB 125 14 2.8 Turkey Point 3 AVB 95- 10 <2.0 Turkey Point 4 AVB 2 0 <2.0 Vandellos 2 AVB (<1992) 733 172 2.5 AVB (1992) 1529 30 3.4 AVB (1993)* 1548 0 0

• AVB's replaced in 1992 6-3

1 7 STEAM GENERATOR TUBE SLEEVING Stoam generator tube sleeving has been used as an effective alternative to plugging. Sleeving consists of installing a smaller diameter tube (sleeve) into a damaged tube. l The sleeve ends are expanded and sealed to provide both a seal and redundant load l carrying path. Although sleeving is generally more expensive than plugging, it has the I advantage of leaving the tube in service and providing additional tube strength. Most sleeves to date have been installed in the tubesheet region. A few sleeves have been inntalled at other locations in the steam generator and have been used to improve  ; structural support and provide vibration damping. Table 7-1 is a listing of the number of tubes sleeved at each plant. As of December 31,1993, over 55,000 tubes have been sloeved. Table 7-2 (2) gives additional information on sleeving times and radiation exposure for selected sleeving campaigns. As more automated techniques have been developed, the installation time and exposure per sleeve have been dramatically reduced. Sleeving will play an important role in maintaining steam generator tube intagrity. Anumber of utilities are using sleeving as a preventative measure to reduce tho number of forced outages caused by steam generator tube leaks. Nickel plating has be an developed as an attemative to sleeving for some damage mechanisms. Tanle 7-3 is a summary of three major nickel plating campaigns. 9 7-1

Starm Genemtor1kbe Sleeving Table 7-1 Sleeving Experience PLANT YEAR TUBES SLEEVED REPORTED CAUSE ALMARAZ 1 89 3 SCC (ID) 90 100 SCC (ID) 10 SCCAGA (OD) l ANO 1 84 86 40 SCCAGA (OD) 88 174 SCC /lGA (OD) 90 106 SCCAGA (OD) 92 572 SCCAGA (OD) 93 76 SCCAGA (OD) ANO 2 92 444 SCCAGA (OD) ASCO 1 - 91 115 SCCAGA (OD) 93 87 SCCMGA (OD) BEZNAU 1 (Org) 81 3 SCCAGA (OD) 82 24 SCCAGA (OD) 83 37 SCCAGA (OD) 84 35 SCCMGA (OD) 85 79 SCCAGA (OD) 86 174 SCCMGA (OD)

                           =87          80        SCCAGA (OD) 88          53        SCCAGA (OD) 89          12        SCCMGA (OD) 90          24       .SCCAGA (OD) 91          10        SCCMGA (OD) 92          11        SCCAGA (OD)

BEZNAU 2 83 17 SCCAGA (OD) 84 17 SCCAGA (OD) 85 39 SCCAGA (OD) 86 86 SCCAGA (OD) 87 42 SCCAGA (OD) 88 13 SCCMGA (OD) 89 14 SCCMGA (OD) 90 20 SCCAGA (OD) 91 15 SCCMGA (OD) 92 13 SCCMGA (OD) 93 39 SCCMGA (OD) 7-2

 . ~ . .

Statm Generator Thbe Sleeping Table 7-1 Sleeving Experience (cont) PLANT YEAR TUBES SLEEVED REPORTED CAUSE 1 BUGEY 5 (Org) 89 76 SCC (ID) 1 CATAWBA 91 75 SCC (ID), SCCAGA (OD) 92 108 SCC (ID), SCCAGA (OD) i DAVIS BESSE 93 212 PREVENTIVE l 1 D.C. COOK 1 92 1840 SCCMGA (OD) l l DOEL2 82-83 187 SCC (ID) 85 10 SCC (ID) 86 81 SCC (ID) DOEL 3 88 55 SCC (ID) DOEL4 93 1736 SCC (OD) FARLEY 1 92 136 SCC (ID), SCC (OD-TSP) 1 FARLEY 2 - 92 29 SCC (ID), SCC (OD-TSP) 93 246 SCC (ID), SCC (OD-TSP)

         ' FESSENHEIM 1         84            10       SCC (ID)

GENKAl 1 85 147 SCCAGA (OD) , 86 342 SCCAGA (OD) 87 384 SCCAGA (OD) . 89 870 SCCAGA (OD) 90 805 SCCMGA (OD) 91 447 SCCAGA (OD) 93 189 SCCAGA (OD) 7-3

Steam Generator Tube Siercing Table 7-1 Sleeving Experience (cont) PLANT YEAR TUBES SLEEVED REPORTED CAUSE GINNA 80 5 SCC /lGA (OD) 81 16 SCCAGA (OD) 83 77 SCCAGA (OD) 84 8 SCCAGA (OD) ' 85 69 SCCMGA (OD) 86 39 SCC / IGA (OD) SCCAGA (OD) l 87 101 89 502 SCC /lGA (OD) 90 241 SCCMGA (OD) 91 207 SCCMGA (OD) 92 425 SCC /lGA (OD) 93 266 SCC /lGA (OD) IKATA 1 84 14 SCC (ID) INDIAN POINT 3 82 2971 PITTING 85 635 PITTING (ORG) KEWAUNEE 88 1940 SCC /lGA (OD) 89 1698 SCC /lGA (OD) 91 690 SCCAGA (OD) 92 16 SCCMGA (OD) KORI 1 88 558 PITTING 89 178 PITTING 90 415 PITTING / SCC (ID) 92 330 PITTING / SCC (ID) 93 97 PITTING / SCC (ID) MC GUIRE 1 90 397 SCC (ID) 91 444 SCC (ID) MC GUIRE 2 90 478 SCC (ID) 92 137 SCC (ID) MlHAMA2 82 3 SCC (OD) 83 14 SCC (OD) 84 25 SCC (OD) 7-4

l Stam Genemtor Tkbe Siercing Table 7-1 Sleeving Experience (cont) PLANT YEAR TUBES SLEEVED REPORTED CAUSE MILLSTONE 2 83 2022 P11 TING (ORG) 85 2917 PITTING, WASTAGE 86 225 PITTING, WASTAGE OCONEE 1 78 8 FATIGUE 87 469 FATIGUE OCONEE 2 89 228 FATIGUE OCONEE 3 88 247 FATIGUE

  ' OHI 1             84                            81                      SCC (ID) 85                            443                     SCC (ID)

! 86 650 SCC (ID), SCCAGA (OD) 87 743 SCC (ID), SCCAGA (OD) 88 182 SCC (ID), SCCMGA (OD). 89 1122 SCC (ID), j SCCMGA (OD) 90 863 SCC (ID), l SCCAGA (OD) 91 877 SCC (ID), SCCAGA (OD) 93 570 SCC (ID), SCCAGA (OD) OHI 2 84 8 SCC (ID) PALISADES .76 14 WASTAGE

   ~ (ORG)            78                             23                      WASTAGE

, POINT BEACH 1 81 13 SCCAGA (OD) (ORG) 7-5

Steam Genemtor Tube Sleeping Table 7-1 Sleeving Experience (cont) PLANT YEAR TUBES SLEEVED REPORTED CAUSE POINT BEACH 2 83 3001 SCCAGA, WASTAGE 87 87 SCCAGA, WASTAGE 88 509 SCCAGA, WASTAGE 89 298 SCCAGA, WASTAGE PRAIRIE ISLD 1 87 26 SCC /lGA (OD) 88 73 SCCAGA (OD) 90 62 SCCMGA (OD) 92 158 SCCAGA (OD) RANCHO SECO 86 508 FATIGUE RINGHALS 2 84 3C SCCAGA (OD) (ORG) 85 50 SCCAGA (OD) 86 596 SCCMGA (OD) 87 554 SCCAGA (OD) RINGHALS 3 91 68 SCCMGA (OD) SAN ONOFRE 1 81 6929 WASTAGE, SCCAGA SUMMER 90 125 SCC (ID) 91 610 SCC (ID) TAKAHAMA 1 80 2 SCC (OD) 81 4 SCC (OD) 82 32 SCC (ID), SCC (OD) l 84 59 SCC (OD) l- 88 6 SCCAGA l l '- 7-6 (,

Sialm Generator Tube Sleeping ! Table 7-1 Sleeving Experience (cont) PLANT YEAR TUBES SLEEVED REPORTED CAUSE l l TAKAHAMA 2 84 231 SCCAGA (OD) l 86 330 SCCAGA (OD) l 87 466 SCCAGA (OD) 88 1007 SCCAGA (OD) l 90 1139 SCCAGA (OD) 91 675 SCCAGA (OD) J 92 644 SCCAGA (OD) TMl 1 91 250 FATIGUE 93 252 FATIGUE TRICASTIN 2 85 14 SCCAGA (OD) TROJAN 90 2 SCCAGA(TSP) i 91 1061 SCCAGA(TSP)

1 l

ZION 1 86 128 SCCAGA (OD) 88 47 SCCAGA (OD) 89 445 SCCAGA (OD) 92 125 SCCAGA (OD) 4 93 61 SCC (ID), , SCCAGA (OD) ZION 2 90 82 SCC /lGA (OD) 92 170 SCCAGA (OD) 4 4 I l 7-7 l . . ... . - .- . . - __ _

k t I g Table 7-2 y Major Sleeving Operations H i San Onofre 1 Point Beach 2 indien Point 3 Doel2 Doel3 Doel4 f k t

i Sleeving Dates 9/80 - 6/81 4/83 - 6/83 10/82 - 1/83 9/82 - 9/83 1988 1993  !

g Number of Sleeves Installed 6929 3001 2971 187 55 1736 . I 4  ! Dan- @ Type KRA IGA Pitting IGSCC PWSCC IGSCC l i Location Top of TS TS Crevice Sl=*= Pile TS Hot Trans Top of TS Top of TS i Sleeving Contractor W W W B&W W W j Sleeve Length (in) i 27-30-36 36 36-40-44 1.5 36 31-36 i Sleeve Base Material Alloy 600-TT Anoy 600-TT Alloy 600-TT Alloy 600-TT Asoy 600-TT Ahoy 690 OD Clad Materail None None None None None Nono Expansion Material Hydraulic Hydraulic Hydraulic Explosive Laser Hydraulic / Mech TotalInstallation Trns iweeks) 30 10 14 - - 4 InstaRation per Sleeve (hrs) 0.94 0.53 0.74 - - 2.6 , I Exposure Total (man-rem) 3496 660 860 - 34.5 t Exposure per Sleeve 0.5 0.22 0.29 - - 0.02

  . . . -      . - - .      . - - - - . . . . -        .     . . - ~ .

Table 7-2 Major Sleeving Operations (cont.) R.E. Ginna Palisades Rn@els2 Rmghals 3 Sleevino Dates 11/80 5/81 5/83 3/76 3/78 5/84 5/84 619 1 Numberof Sleevesinstalled 5 16 77 14 23 18 17 68 Damage Type IGMGSCC Wastage IAG/lGSCC IAG/lGSCC PWSCC/ODSCC Location Tubesheet Crevice TSP Intersections TS Crewce TS Crevice TS/RTZ Sleevina Centractor B&W and RGE CE C5 W CE Sleeve Length (in) 20-36 12 (nominal) 30 30 TSP /TS Sleeve Base Mateeial Alloy 600-TT Alloy 600 Alloy 600-TT Alloy 600-TT 690TT i. OO Clad Material Nickel None None None - I Expansion Material Hydraulic Explosive Hydraulic Elastomeric Hydraulic W eld TotalInstasation Time (weeks) - - - 8 - - - - InstaRation per Sleeve (hrs) 8 2 0.33 - - - 3.5 .9 - 1.5 l 4 3.4 m I Exposure Total (man-rem) - - - 15 - 3.4 3 Exposure per Sleeve Ave. 0.4 - 0.5 - - 0.22 0.17 0.13 t a ii W x m

>                                                                                                                                              j     >

v e i oo I

l l Y Table 7-2 La a o Major Slesving Operations (cont.) 'I Point Beach 1 Millstone 2 Kewaunee 4 El Sleeving Detes 8/81 7/83 - 9/83 318 8 318 9 3191 3192 l Numberof Sleevesinstalled 13 2022 1940 1698 690 16 i-3 Damage Type IGA Pitting IGMGSCC IGMGSCC IGNIGSCC IGNIGSCC l ! Location TS Crevice Sludge Pile TS Crevice TS Crevice TS Crevice TS Crevice l Sleeving Contractor W W W W W ABB/CE Sleeve Length (in) 36 40 30-36 30-36 27-30-36 27 Sleeve Base Material Alloy 600-TT Alloy 690 Alloy 600-TT Alloy 600-TT Alloy 600-TT Alloy 690-TT i OD Clad MateraR None Alloy 625 None None None None Expansion Material Hydraulic Hydrauhc HEJ HEJ HEJ Welded TotalInstallation Time (weeks) 2 8 2.4 2.2 - - InstaRation per Sleeve (hrs) - 0.6 0.21 0.21 - - Exposure Total (man-rem) - 385 66.8 41.2 - - Exposure per Sleeve - 0.19 0.034 0.024 - - I j 4 k a

                                                                                                                               'I

i D? t t Table 7-3 , Major Nickel Plating Operations t

                                .          Doel2           Thange 2        Thange 2                 l 4                                                                                                     i Sleeving Dates                          1990              1992           1993 l

r Number of Plaled Tubes 345 602 554 Damage Type Top of TS Top of TS Top of TS i Plating Contractor Framatome Framalome Framatome I Plating Length (in) 4 4 4  ! Plating Method Electrochemical Electrochemcal Electrochemical TotalInstallation Time (weeks) 3 3 3  ; l 1 Installation per Plated Tube (hrs) 1.5 2 2 i Exposure Total (man-rem) 11 25.6 22.1 Exposure per Sleeve (man-rom) 0.03 0.04 0.04 i i l

                                                                                              !c      I a'      ;

3 O i 3  ! 2 si E' W tn C 4

8 STEAM GENERATOR CHEMICAL CLEANING l l One of the primary causes of steam generator degradation is the accumulation and j buildup of corrosion products transported to the steam generators. Aggressive impurities from sources such as condenser cooling water leakage concentrate in these deposits ! and corrosively attack the steam generator tubes and support structures. One method l of removing accumulated corrosion products and aggressive chemical species from l steam generators is by chemical cleaning. As of December 1993, forty five steam l generator cleanings have been performed (3). All nine cleanings done in the United States and Canada have used the Electric Power Research Institute Steam Generator Owners Group (EPRI SGOG) process or a modification of this process. Additionally, the EPRI SGOG solvents were applied in Korea and Belgium for a total of eleven applications. Electricite de France (EdF) developed a process for the French utility community and has performed four cleaning applications to date. Siemens Kraftwerk Union (KWU) developed its own methodology and as of December 31,1993, has applied this process thirty times. Those applications made for iron oxide dissolution prior to 1991 used a different chelating agent than later KWU applications. Each process, EPRI SGOG, EdF and KWU, was tested by its respective application vendor and qualified for use with particular attention to site specific requirements. Tables 81 and 8-2 list each cleaning performed and the amount of corrosion products removed. Most of the cleanings to date have been considered a success by the utility performing the cleaning. The chemical cleanings have been especially effective at removing deposits from steam generator tubes and in cleaning tube support plate broached holes. Several of the most quantifiable successes include cleaning of four once-through-steam-generator (OTSG) units in order to retum to full power operation, cleaning of the broached holes at Bruce 4 to correct water level oscillation problems, and cleaning two Paks units in Hungary to recover heat transfer capability. The cleaning of packed tube support plate crevices and hard tubesheet sludge piles has been only partially successful. Tubesheet cleaning can be improved by an effective water lancing program before and after the cleaning. Vendors are continuing to look at ways to improve crevice cleaning. Steam generators cleaned before large accumulations occur will have a minimum of corrosion during the cleaning and the greatest chance of removing the deposits. Utilities can expect the best overall results if they choose to clean the steam generators when inspections first reveal an impending problem. I 8-1

e Steam Generator ChemicalCleaning Table 8-1 EPRI SGOG Chemical Cleanings (December 1993) UNIT YEAR VENDOR APPLICATION PROCESS TOTAL REMOVED Pounde Ka Muistone 2 1985 PNSCE Tubeeheet Mod. SGOG Fo+Cu 567 258 Maine Yankee 1987 PNSCE Tuboeheet Mod.SGOG FeA 2381 1042 Ocones1 1987 DP/B&W Partial Height Mod SGOG Fe 6648 3022 Oconeo 2 19ea DP/B&W Partial Height Mod SGOG Fe 8909 4050 1990 PNSCE Part. Height-9th TSP Mod. SGOG Fe+Cu 10040 4564 Arkansas 1 1990 PNS/ ABBR /CF. Tubeeheet Mod.SGOG Fo+0u 876 398 KOR11 Three Mile Is.1 1991 B&W Fart. Height-9th TSP Mod. SGOG Fe 6540 2973 I Pickering 5 1992 B&W Full Height Mod.SGOG Fo+Cu 9134 4152 DOEL4 1992 PNS/ ABBR /CE Full Height Mod. SGOG Crevice Fe 6574 2988 Bruce 4 1993 PNS/BWNT Full Height Mod.SGOG Fe+Cu 13759 6254 Pickering 6 1993 IMNT Full Height Mod.SGOG Fe+Cu 7539 3427 Vendors PNS: Paci5c Nuclear Services now Vectra CE: Combustion Enginering DP: Duke Power B&W: raw &Wiloox now B&W Nuclear Technologies ABBR: Asea Brown Boveri Reaktor Process Crev. Crevice Step i. L 8-2 l L

r s Stum Generator Chemical Cluning Table 8-2 KWU and EDF Chemical Cleanings (December 1993) UNIT YEAR VENDOR APPLICATION PROCESS TOTAL REMOVED Pounds Ka Bildie B 1985 10NU Full Height KWUCu 1.3 0.6 Neckarwestheim 1985 16VU Full Height KWUCu 6.2 2.8 Stado 1985 104U Fun He;ght KWUCu 24.2 11 Stade 1986 10NU FuH Height KWUCu 67.3 30.6 Neckarweetheim 1986 10NU Fun Height KWU Fe(NTA) 920 418 Almoraz 1 1986 10NU Fun Height KWU Fe(NTAhCu 7456 3389 Grafenrheinfeld 1987 10NU Full Height KWUCu 1.5 0.7 Stade 1987 10NU Full Height KWU Fe(NTA) 3586 1630 Almaraz 2 1987 10NU Fun Height KWU Fe(NTAhCu 6682 3037 j A8CO 2 1987 10NU fur Height KWUCu 2048 931 ASCO1 1987 10NU Fun Height KWUCu 3419 1554 Tihan9e 1 1988/89 EF FuH Height E5Fe+Cu 9910 4505 Almaraz 1 1988 10NU Full Height KWUCu 215 98 ASCO1 1988 10NU Fun Height KWUCu 856 389 l Ringhals 3 1988 10NU Tuboeheet KWU Fe(NTA) 2495 1134 Almeraz 2 1988 10NU Fun Height KWU Fe(NTAhCu 5028 2285 Almaraz 1 1988 IGNU Various Heights KWU Fe(NTA) 4437 2017 Minghals 4 1988 10NU Tubesheet KWU Fe(NTA) 2102 955 ASCO 2 1989 10NU Full Height KWUCu 695 316 Tihange 2 1989 10NU Fun Height KWU Fe(NTA)+Cu 4079 1854 Almaraz 1 1989 10NU Fun Height KWU Fe(NTA)+Cu 4263 1938 l ASCO1 1989 60NU Full Height KWUCu 636 289 Ringhals 3 1989 10NU Fun Height KWU Fe(NTA) 5315 2416 Ringhals 4 1989 10NU fun Height KWU Fe(NTA) 5861 2664 Nogent 1 1989 Eif Fun Height ES Fe+Cu 14136 6425 Almaraz 2 1989 10NU Fun Height KWU Fe(NTA)+Cu 4165 1893 l Mihama 1 1990 KWU/MHI .Tuboeheet 962 437 1990 KWU Fe(NTAhCu )

                     . Almaraz 1                                   10NU          Fun Height                KWU Fe(NTAFCu                   5486                    2494 Ohit                 1990               KWU/MHI           Part. Height.1st TSP      KWU Fe(NTAhCu                   1643                        747 Saint Alban 2        1990                      EF         Partial Height                    ESFe+Cu                 2618                    1190 Paks 1               1991                   10NU          Full Bunde (Horiz.)          KWU Fe(EDTA)                19186                    8721 Paks 2               1992                   10NU          Full Bundle (Horiz.)         KWU Fe(EDTA)                10572                    4805 Fossenhorn 2         1992                      ES         Fun Height                        ESFe+Cu                21670                    9850 DOEL4                1993                   10NU          Fun Height             i'WU Fe(EDTAhCu+Pb                  542                        246 l

l

                     . Vendoru KWU:              Kraftwerk Union Eif               Electricite de France MHl:              Mitsubishi Heavy Industry

{ 8-3 t , -=r , , , - - ,,, - -

                                                                                                                 )

9 STEAM GENERATOR REPLACEMENT Steam generators were replaced at North Anna 1, Doel 3, Bugey 5, Beznau 1, and Mihama 2 during 1993 (Table 9-1). This level of activity is likely to remain high during the next several years. To date eight United States, one German, one French, one ! Swedish, one Belgian, one Swiss, and one Japanese utility have replaced a total of 50 steam generators at 18 nuclear units. Several techniques have been utilized to replace steam generators. These techniques include the pipe cut and channel head cut methods. In the pipe cut method, the steam generators are removed from the reactor coolant system by cutting the hot and cold leg primary piping adjacent to the primary channel head of the steam generator. Replacement steam generators or replacement portions are installed by reconnection to the primary piping to complete the repair operation. in initial replacements the upper steam dome was cut from the lower portion of the steam generator and refurbished inside the containment building. Where sufficient containment hatch size was available, the entire steam generator assemblies were removed and replaced. In the channel cut technique the steam generator is separated by cutting the channel head just below the tubesheet. This leaves the lower primary piping in place and simplifies the fit up operation. The upper portion of the steam generator can be replaced in its entirety or the upper steam dome can be cut and refurbished in the containment building. Operation before steam generator replacement has ranged from 7 to 24 years. However, effective full years of operation (EFPY) has ranged from 3.6 to 19.5 EFPY. The steam generators replaced in 1993 had an average of 12.1 EFPY. This average was greater than the effective full power operation of any of the previous replacements. The impact to a utility of having to replace steam generators is still substantial. Table 9-1 shows that replacement durations have ranged from 70 days up to 260 days. Total doses received by personnel performing the changeout have ranged from 110 to 2141 man rems. Replacement costs have ranged from 37 to 190 million dollars excluding replacement power costs. An encouraging trend is that the costs for replacement have appeared to level off while both the replacement duration and man rem exposure have been decreasing. The replacements during 1993 required on the average only 25% of the time and 8% of the exposure as the first replacement at Surry 2. Replacement steam generators have been ordered for at least 28 plants. Table 9-2 shows the steam generator replacement orders that have been announced to date. These orders indicate that steam generator replacement activity will continue to remain high over the next several years. 9-1

La

 'P Table 9-1 Replacement Steam Generators                                                                                                                                                          !
                           ~

UNIT NO. REPL. REPL. TUBE COMM. COMP. OPER. EFPY REPL. EXPOSURE REPL METHOD S.G. M ATERIAL - OPER. DATE  % SG. (YEARS) OPER. DURATION (M AN-REM) COSTS (1) (D AY S) (MILLIONS) k w Surry 2 3 Pipe Cut W I-600TT May-73 Sep-80 7 3.6 260 2141 $94 (Lower Shell) Surry 1 3 Pipe Cut W I-600TT Dec-72 J ul-81 8 4.4 200 1759 $94 (Lower Shell) Turkey 3 Channel W I-600TT Dec-72 Apr-82 10 5.2 217 2152 $90 Point 3 Head cut Turkey 3 Chennel W 1-600TT Sep-73 May-83 9 5.9 150 1305 $90 Point 4 ' Head Cut Obrigholm 2 Pipe Cut 10NU I-800 Mar-69 Sep-83 14 11.2 72 (2) 690 $37 (3) (Endre SG) Point Beach 1 2 Pipe cut W 1-600TT Dec-70 Mar-84 13 9.2 118 (2) 575 $47 (3) H B Robinson 3 Channel W 1-600TT Mar-71 Oct-84 13 8.5 130 1207 $85 Head cut D C Cook 2 4 Pipe Cut W 1-690TT Jun-78 Mer-89 11 6.6 175 561 $112 i indian Pt. 3 4 Pipe Cut W I-690TT Aug-76 Jun-89 13 6.4 140 541 $120 (Endre SG) Ringhals 2 3 Pipe Cut KWU I-690TT May-76 Aug-89 14 8.1 72 (2) 290 $130 (Enure SG) , ] D

                                                                                                            -~          _ . . _ _ - - _ _ _ _ - - _ _ _ - - _ _ _ _ _ _ _ _ _ - _

TatWe 9-1 Replacement Steam Generators (cont.) UNIT NO. REPL REPL TUBE COMM. COMP. OPER. EFPY REPL EXPOSURE REPL SG. METHOD S.G. MATERIAL OPER. DATE (YEARS) OPER. DURATION (M AN-REM) COSTS (1) (DAYS) (MILLIONS) Dampierre 1 3 Pipe C ut FRA l-690TT Sep-80 Jun-90 10 6.7 70 220 $104 (Entire SG) Pallsades 2 Pipe Cut E l-600MA Dec-71 Ma r-91 19 8.3 121 487 $100 I (Entire SG) Mllistone 2 2 Pipe Cut IMC 1-690TT Dec-75 Jan-93 17 10.9 192 697 $190 (Partial SG) I Bugey 5 3 Pipe Cut Fra 1-600TT Jan-80 Feb-94 13 9.8 75 150 $91 (Entire SG) Doel3 3 Pipe c ut S-F l-800 Oct-82 Jun-93 11 10 44 196 $98 (Entire SG) North Anna 1 3 Pipe Cut W 1-690TT Jun-78 Apr-93 15 9.6 96 (4) 240 $125 (Lower Shell) w , i Beznau1 2 Pipe Cut FRA l-690TT Dec-69 Apr-93 24 19.5 44 (2) 110 $50 g t 3 (Entire SG) k Mhama 2 2 Pipe Cut IMl I-690TT J ul-72 Aug-94 18 11.5 _ _ _ $ (Entire SG) T i (1) Excluding replacement power costs (2) Shutdown unts start of hydro (3) Partial warranty provision [ (4) Outage duration breaker to breaker; 51 days for steam generator work _ I t

___..___.______.____._..____-._.._.-_.7 ._ _7 Stanm Generate Replacement l Table 9-2 Planned Steam Generator Replacements (Orders Placed) Plant Number of Net Capacity Replacement Tube Projected Steam (MWe) Supplier Material Year of Generator Replacement Units i Takahama 2 3 780 MHI l-690TT 1993/94 Gravelines 1 3 910 Fra 1-690TT 1994 Genkal i 2 529 MHI l-690TT 1994 Summer 3 895 W l690TT 1994 Ohl 1 4 1120 MHI l-690TT 1994/95 Tihange 1 3 870 MHI l690TT 1995 Ringhals 3 3 915 SF l-690TT 1995 Dampierre 3 3 900 Fra 1-690TT 1995. St. Laurent B1 3* 900 Fra 1-690TT 1995 Asco 1&2 6 887 S-F l-800 1995/96 Mihama 1 2 320 W l-690TT 1995/96 Takahama 1 3 780 MHI l690TT 1995/96 Doel 4 3 1010 SF l-690TT 1996 Mlhama 3 3 780 MHI l-690TT 1996 North Anna 2 3 887 W l-690TT 1996 Ginna 2 470 BWC l-690TT 1996 Almaraz 1&2 6 900 S-F l800 1996/97 Catawba 1 4 1129 BWC l-690TT 1996/97 McGuire 1 4 1129 BhD l-690TT 1996/97 McGuire 2 4 1129 BWC l-690TT 1996/97 Point Beach 2 2 497 W 1690TT 1996/97 Ohl 2 4 1120 MHi l-690TT 1996/97 St. Lucie 1 2 839 EMC l690TT 1997 Zion 1 4 1040 BWC l690TT 1998 Farley 2 3 872 W l-690TT 2005 Farley 1 3 873 W l-690TT After 2005 W= Westinghouse Fra=Framatome S-F=Slemens/Framatome

                   .MHl=Mitsubishi Heavy industries                            BWC=B&W Canada

• Either 1 or 3 generators to be replaced, depending upon 1994 inspection results 9-4

                           . - _ = _ - . . _ .

10 l REFERENCES

1. O. S. Tatone and R. S. Pathania, Steam Generator Tube Performance: Experience with Water-Cooled Nuclear Power Reactors During 1982, Report AECL 8268, October 1984.

l 2 E. S. Hunt and J. A. Gorman, Design Review Checklist: Steam Generator l Slesving, EPRI Report NP-4296 LD, November 1985.

3. B. L. Dow Jr., Utility Experiences with Steam Generator Chemical Cleaning, EPRI Report TR-104555, October 1994.

I l l 10-1

APPENDIX A: HISTORICAL TUBE PLUGGING DATA Appendix A Abbreviations Abbreviation includes Wastage Wastage and thinning

       - Denting S P          Denting at support plate intersections

~ Denting T S Denting at and above the tubesheet Pitting Pitting OD S/lGA SP Secondary side stress corrosion and/or intergranular attack (support plate) OD S/lGATS Secondary side stress corrosion arxi/or intergranular attack (tubesheet) ID SCC TS Primary side stress coiTeek,6 cracking (tubesheet locations) ID SCC UB Primary side stress corrosion cracking (U bend locations) i FRET (PREH) . Tthe fretting and wear (preheater locations) FRET (AVB) Tube fretting and wear (AVB locations)

       - FRET (LP)            Tube fretting and wear caused by a loose part or foreign object HC FATIGUE           High cycle fatigue i         ERR /COR              Erosion and/or corrosion OTHE3                 Unknown cause or a cause other than above
                 .                                                                                            i

, TOT PLUGGED Total number of tubes plugged  ! TOT SLEEVED Total number of tubes sleeved T.L. OUTAGE Number of forced outages caused by steam generator tube leaks A-1

   , --e                   r                       +

 . _ _ _ _     _ __ . _ _ .                . . _ .          _        .. .          . . . . .           __     .m. __.             . . _ . .         _ . __. . _ . . . . _ _ _

4 e i Appendix A UTIUTY : CEEE TOTAL TUBES : 14,022 PLANT

• ALMARAZ1 TUBE MATERIAL : 1600 MA Pir m . 1068 SG K 0EL  : W D3 EFPY  : 9.1 H. L TEMP (F) : 616 C1. TEMP (F) : 553 a76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL DER CTS o

WASTAGE 0 DENTNG SP 0 DENTNG TS 0 PITTING 371 47 2 18 de 486 00 SAGA SP 4 4 00 SAGA TS D SCC TS 74 32 223 6 3 27 16 381 O DSCCLE 4 2 14 5 16 11 52 F5ET WO 3 3 3 6 15 6 33 FRET (AVB) O FRET (LP) o HC FATOUE o Em 03 64 2 1 5 2 5 1 96 112 TOT PLUGGED 0 0 0 0 0 2 4 2 0 14 75 32 0 602 58 21 0 77 181 1068 TOTS.EEVED 3 100* 101 2 T. L OUTAGE 1 l 1 UTIUTY CONTACT: Gustavo Bonini ' Six oneeves plugged after installation 1 l FHOMi>L94ER 34 1 8516700 I l l l l l A-2

, . s Appendix A LITILITY : CSEE TOTAL TUBES : 14,022 PLANT : ALMARAZ 2 TUBE MATERIAL : 1400 MA P1i m : 779 SG MODEL :W03 EFPY  : 8.8 H. L TEMP (F) : 616 C.L TEMP (F) : 553 (IHCTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTA(E o DENTN3 SP 0 DPmHGTS 0 PfTTING 0 00 MGA SP 2 39 87 101 157 386 00 S/lGA TS 21 12 33 O SCC TS 10 22 27 de 131 66 302 O SCC UB i i FFET(PREH) 7 10 24 41 FRET (AVB) 2 2 2 6

FRET LP) 0

! O HC FAT 1GLE ERMXRR 0 ODER 5 1 2 2 to TOT Plt.t3ED 0 0 0 0 0 0 0 5 0 0 1 10 27 66 144 0 265 261 0 779 TOTS.EEVED 0 T.L OUTAGE O UTIUTY CONTACT: Gustavo Boirmi PtOEM.84ER 34 1 6516700 A-3

..______..__._....___._________..______.._m _ _ _ _ . - _ _ _ . _ _ _ _ _ _ _ _ _ ~ . _ - . . _ _ _ . _ . _ - ._ 1 AppendixA l UTIUTY : R#NAS CENTRAIS TOTAL TUBES : 8,918 PLANT :ANGRA1 TUBE MATERIAL : 1400 MA ( l pi m m. 487 SGMCrJEL :W03 EFPY  : 2.5 H. L TEMP (F) : 620 C.L. TEMP (F) : 549 CERCTS <76 76 77 78 79 40 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE O DENTNG SP 0 DENTNG TS 0 PfTTNG 20 7 27 00 SAGA SP 2 364 366 00 SAGA TS 8 15 17 40 0 SCC TS 6 14 3 23 D SCC LR 0 FRET (PREN o FRET (AVB) 0 FRET (LP) 0 HC FATEJE o ERRwnn 0 ODER 4 7 11 TOT M.i m 0 0 0 0 0 0 0 0 4 0 0 0 7 6 30 0 400 0 20 467 TOTSLEEVED 0 T. L OUTAGE ' o f UTLfiY CONTACT: H Wordine Jr. MOEM A (0243) 42 3355 I A-4

Appendix A UTILITY ' ENTERGY OPERATONS,INC. TOTALTUBES : 31062 PLANT : MO1 TUBE MATERIAL : 1400 PLUGGED: 678 SG MODEL :OTSG EFPY  : 11.6 H. L TEMP (F) : 602 CL TEMP (F) : 656 DERCTS <76 78 77 78 79 80 81 82 83 84 85 88 87 88 89 90 91 92 93 TOTAL WASTAGE o OE>UNG SP O DENTN3 TS 0 PfTTNG 0 00 SMGA SP 2 26 2 9 4 43 00 SnGA TS 1 9 116 37 101 9 196 12 481 0 SCC TS 0 0SCCts 0 FRET (PREH) 0 FRET ( AVB) 0 FRET (LP) 0 HC FAT 100E 1 1 ERRCORR 1 1 ODER 3 1 5 9 110 22 150 TOTPLUGGED 0 0 0 1 0 11 0 142 43 111 0 5 1 13 0 0 0 306 34 676 TOTSLEEMD 10 40 174 106 572 76 978 T. L OUTAGE 2 1 1 1 5 UTLITY CONTACT: Rardy Smith NPO41ER (501) 858-4917 I l I A-5 l

AppendixA UTLITY : ENTERGYOPERATIONS.NC. TOTALTUBES : 16,822 PLANT : ANO 2 TUBE MATERIAL : l-600 Peirwurl: 417 SGMODEL  : CE 2015 EFPY :to H. L TEMP (F) : 600 CL. TEMP (F) : 544

                                       <76   76   77   78  79     80  81   82   83    84   85   86     87   S8   89  90   91   92   03 TOTAL (IRCTS 0

WASTAGE l 0 DENTNG8P 0 DENTNGTS 0 PfTTNG 52 120 t81 00 SAGA SP 5 76 50 131 00 SAGA TS 0 0 SCC TS 0 08CCtB FRET C , 0 6 16 38 60 a FRET (AVB) O FRET (LP) O HC FATISJE 0 EiwwwsR ' 45_ C 44 1 0 0 0 0 0 0 6 0 0 73 243 50 417 TUT PLLN 0 0 0 44 0 0 1 444 444 TUT 3.EEWD 1 1 T. L OUTAGE UTLITY CONTACT: Randy Smith MOEPAASER (501) 854-4917 A-6

        ... -         . -     _ .     -      . . . .       - . - ~ - . . . = . - . . _                        . .... . ~ - . _ ~                    . . . . -          - -..
    . e AppetidixA t

UTLITY : ANA TOTALTUBES - 14,022 PLANT : ASCO 1 TUBE MATERIAL : 1600 MA s Pi m 1473 IG MODEL  : W-D3 EFPY - 7.5 H. L TEMP (F) : 620 1 CL TEMP (F) : 566 l l  ! . DERL1s <76 7e 77 7s 79 80 81 82 83 et 85 se e7 88 89 90 91 92 93 TOTAL 1 WASTAGE o j DENTNG SP 0 . DENTWO TB 0 i PrTTING 'O 1 i OO 8AGA SP 14 132 385 120' 334 81 1066 00 SAGA TS 1 3 14 18 D SOC TS 6 15 21 28 15 231 1 2 5 324 090CLE O FRET (PREH) 1 3 6 to 20 FRET (Avs) 6 7 5 12 30 FRET (LP) 0 W FATIGUE o ERR 00RR 0 OMiFt , 7 1 2 1 1 3 15 TOTPit_ m 0 0 O! 0 0 0 0 0 7 0 7 17 21 42 147 624 133 353 122 1473 TOTREENED 115 fel 87/f31 1958 T. L OUTAGE I 1 1 UTLTTYCONTACT: Gustavo Bollini

• 20 tubes plugged for C. L Indications pHGEMMIER 34 1-6516700 ** 30 tubes plugged for C. L. Indications e 4 tubes sioeved in 1e91 wwe plugged in 19o2.

3 plugged in 1ees P A-7

AppendixA TOTAL TUBES  : 14,022 UTILITY : ANA PLANT ASCO 2 TUBE MATERIAL  : l-600 MA PLUGGED: 873 SG MODEL  : W D3 EFPY . 8.8 H. L TEMP (F)  : 620 C1. TEMP (F)  : 556 78 77 78 79 80 81 82 83 84 85 88 87 88 89 90 91 92 93 TOTAL DERCTS 478 O WASTAGE 0 DENTNG SP 0 DENTNG TS 0 PfTTING OD SAGA SP 2 38 105l128*' 97 413 779 I 9 3 8 20 OD SAGA TS 4 32 10 3 4 53 O SCCTS 0 09CCUB 0 FRETi = 0 2 3 5 FRET (AVB) 0 FRET (LP) HC FATIQUE 1* 1 0 ERRFXMR 4 1 7 3 15 OnER TOTPLUGGED 0 0 0 0 0 0 0 4 0 0 0 0 0 7 37 144 147 103 431 873 TOTE.EEVED 0 T. L. OUTAGE o

• Plugged after evaluation for tube UTLITY CONTACT: Gustavo Boinni vibraton induced fangue l PHOMEPAA4ER: 34 1 8518700 " 3 tubes plugged for ODSCC in free span tube and 5 bbes plugged for C. L. Indicatons i

l l l l A-8

Appendix A UTIUTY DEA TOTAL TUBES : 7,890 l PLANT : ATUCHA-1 TUBE MATERIAL : 1-800 PLUGGED 104 SGMODEL :KWU EFPY  : 11.7 H. L. TEMP (F) : 582 CL TEMP (F) : 521 EFE23 <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE 1 2 3 DENTNG SP 0 OcNTNGTS 0 PfrTNG 0 00 SMGA SP o _00 SMGA TS 0 0 SCC TS 0 DSCCls 0 FRET (PREH) 0 FRET (AVB) 1 2 74 2 is 94 FRET (LP) O HC FATKRJE" 0 ERFK ORR 0 cmER *7 0 TOT PLUGGED 0 0 0 0 0 0 0 1 1 0 0 2 83 0 0 0 0 2 15 104 TOTSLEEVED 0 T L OUTAGE 1 2 2 5 UTLITY COWACT: S. Odar / R Bouacks

• Pluo9ed p eventively PtONE NGEER 40-9131 18-2077 / 49-9131 18-9410 A-9

AppendixA s TOTALTUBES : 10,164 l UTILITY DUQUESNE1JGHT CO. l PLANT  : BEAVER VALLEY 1 TUBE MATERIAL : l-600 MA pi rram : 1620 83 MODEL  : W 51 EFPY 9.7 H. L. TEMP (F) : 606 C.L. TEMP (F) : 546 81 82 83 84 85 86 87 88 89 90 91 92 03 TOTAL CERL'TS 476 78 77 78 79 to 2 15 27 16 11 18 25 113 WASTAGE 0 DENT 9GSP 0 DENTNG TS 0 FfTTNG 8 117 733 435 1293 00 SMA SP 83 83 00 SAGA TS 0 O ST TS 42 8 23 73 080CtB O FYET s=, 3 4 2 1 1 11 FRET (AVB) 1 6 1 9 1 18 FRET RP) 6 5 11 C FATIG W 0 M 6 6 3 2 1 18 OD4R 0 0 0 0 8 24 0 37 72 0 150 0 760 0 668 1620 TUTPIN 0 0 0 1 o TOTLc 1 1 T. L. OUTAGE UTUTYCONTACT: Groo Kammerdecer PH3E P8A4BEFL 412 383 5677 A-10

, o . l l l l Appendix A UTLITY : DUQUESPEUGHTCO. TOTAL TUBES : 10,128 l i PLANT ; BEAVERVALEY2 TUBE MATEIMAL : l-600 MA Pe t ransn 121 SGMODEL  : W-51 M EFPY  : 4.7 H. L TEMP (F) : 606 l CL. TEMP (F) : 546 I DUECTS <78 78 77 78 79 80 81 82 83 84 85 48 87 88 89 90 91 02 93 TOTAL i WASTAGE O DENTNGSP 8 8 DEmmNGTS 0 l 0 ( PfTTNG OD SAGA SP 1 2 3 00 SAGA TS 0 0 SCC TS 0 g,9CC12 0 l o litET PREH) ! FRET (AVB) 2 2 l FRET A.P) 4 7 11 1 HC FATIGUE 2 2 4 ERRCORR 0 ON 14 79 93 TOTp t rwun _ 0 0 0 0 0 0 0 0 0 0 0 0 14 0 6 2 0 11 88 121 i TOTSLEEVED 0 l 1 1 T. L. OUTAGE 1 t I UTLtTY CONTACT: Gree Kammeedoiner PHOPEPAAMIER 412 393 5677 l i 4 f A-11 l l

AppendixA LITILTTY : EE TOTALTUBES : 21,368 PLANT . BE111M1E1 TUBE MATERIAL : I.600 TT SI N

• 29 SGMODEL  : FRAM-66/19 EFPY 3.3 H. L TEMP (F) : 616 C.L. TEMP (F) : 559 476 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 TOTAL DERCTS o

WASTAGE O DE7mNG SP 2 10 12 DEPENG TS 0 PfTTING O 00 84GA SP 0 00 SAGA TS 0 ID SCCTS 0 10SCCLB 0 FRET (PREH) 0 FRET (AVB) FRET (LP) 2 2 HC FATIGUE o ERRCOfvt 0 OMiR 1 11 3 1S TOTR.UGG!D 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 13 0 13 29 TOTSJEEVED 0 T. L OUTAGE 0 UTILITY CONTACT: R.Comby PK)PENL941EiR 1 49 22-86-78 l A-12

Appendix A UTILITY : EF TOTAL TUBES : 21,368 PLANT BELEVLLE2 TUBE MATERIAL : 1400 TT PLUGGED 58 SGMCOEL  : FRAM 68/19 EFPY  : 3.8 H. L TEMP (F) : 616 C.L TEMP (F) : 559 [IHETS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o DENTNG SP O DOGNGTS 2 3 5 PfTTNG 0 00 SMGA SP 0 00 MGA TS 0 0 SCC TS 0 D SCC UB 0 FRET (PROC 0 FRET (AVB) 0 FRET d.P) 8 8 HC FATIGK 0 ERRCORA 0 OTER 9 31 5 45 TOT RUGGED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 9 33 8 0 58 TOT!LEEVED 0 T. L. OUTAGE o UTLITY CONTACT: R. Comby FHONE MAEER 1 49-22 88-78 A-13

e e Appendix A UTILTTY , NOK4E2NAU TOTALTUBES : 5,208 PLANT

• BEZNAU1(ORIGINALSG) TUBE MATERIAL : l-600 MA PIm 1500 SG MODEL  : W-33 EFPY  : 19.5 H. L TEMP (F) : 599 C.L TEMP (F) : 545 1

76 77 78 79 80 81 82 83 84 SS 46 87 88 09 90 91 92 93 TOTAL [ERETS <76 o WASTAGE 0 DENTNG SP 0 OENTNG TS R 0 PfTTNG E O OD SAGA SP 6 46 39 51 40 79 180 83 54 13 24 10 P 1630 00 SAGA TS 900 7 3 5 L 0 D SCC TS A 0 DSCCLB C 0 FRET C 0 1 41 4 E 46 FRET (AVB) D 0 FRET (LP) 0 m FATERJE o ERRhnm 8 1 1 1 1 12 C" E 990 7 3 0 15 5 48 41 52 44 79 180 84 54 13 24 10 1 1688 RI N f31 f31 f131 f121 f201 f741 f 631 f1881 Wlm 1500 TOTPLL " TOT!LEENED 3 24 37 35 79 171 80 53 12 24 10 11 542 4 1 1 1 1 1 10 T. L. OUTAGE 1 UTLITY CONTACT: D.BAUMANN PK7E PAAMER 44 56-09 7322 A-14 l

  . . _ .           -     . . . _     . . . _ _ . _          .__      _ _ _             _-           . - . . - _ . . _              ,_____--__...___.m                      . . _ . . . _ . _ . _
          . e Appendix A 1'

i UTILITY : NOK4E2NAU TOTALTUBES : 5,208 PLANT . BE2NAU2 TUBE MATEFuAL : 1600 MA i PLUGGED: 711 SGMODEL  : W 33 EFPY  : 18.7 H. L TEMP (F) : 599 l } C.L TEMP (F) : 545  ; 5 G RICTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL

WASTAGE '07 118 40 4 5 1 275

!                DENTNGSP                                                                                  '

O i DENTNGTS 0 1 I PfTT1NG 0  ;

00 snGA SP 0

) 00 8AGA TS 1 1 1 8 17 11 22 17 40 91 42 13 14 20 15 311 i D SCC TS 0 08CCl2 2 1 5 11 75 94 FFET #4tEH) 0 l FRET (AVB) 1 12 2 1 2 1 19 FRET (LP) 0 Hc FATIGUE O ERRCORR 0 cmet c 1 9 12 TUTPLW 107 118 41 7 2 7 36 13 23 17 47 93 52 13 14 31 15 0 75 711 i TOTE.EEVED 17 17 39 86 42 13 14 20 15 13 39 315 T. L. OUTAGE 1 2 1 2 1 7 UTLITY CONTACT: D. BAUMANN MONE MMER. 44 56-99 7322 A-15

 .. . = - . - - _ - - _                      . -      . . - . - _ _ _ . _ -

J AppendtxA UTILinf : RHENSCH WESTFAUSCHES TOTALTUBES  : 16,240 ELEKTREITATSWEFM AG PLANT : BIBLIS-A TUBEMATERIAL : 1-800 PLUGED. 604 SG MODEL :KWU EFPY . 13.1 H. L TEMP (F)  : 696 i C.L. TEMP (F)  : 543 DEFENS 476 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE 1 10* 1 2 101 140 179 19 2 3 6 4 12 480 DENTNG SP 0 DENTNGTS 0 PfTTING 0 OD SAGA SP 0 00 SAGA TS 0 0SCCTS 0 O SCC UB 0 FRET (PREH) 0 FRET (AVB) 37 2 4 5 1 40 FRET (LP) 0

                  >0 FATHRE                                                                                                                    O EAmAmA                                                                                                                       0 ODER                          2**                             66**'                      2"' 4***       1*"                75 TUTPLUQtED      0       0       2  0      0      1     10 1 2    204 142 179      23       9       7       7   4  13   0  804 TOT m                                                                                                                        0 T. L. OUTAGE                                                1                                                                1 UTLITY CONTACT: S. Oder / R. Souseke

• 3 bbes out of 10 were puHed for investigaton

                                                                                ** 2 tubes were pulled for investigaton PHOPE PAAdilER:    49 9131 18 2077 /                          *" Total of 73 tubes were piu0ged preventively 1

40 9131 18 9410 (63 due to AVB repair, 10 due to uninsoectability of #se tubes) l l t ? A-16

o e Appendix A UTILITY ' FNENSCHWESTFALISCHES TOTAL TUBES : 16,084 ELEMTRI21TATSWEft( AG PLANT : BIBLIS-B TUBE MATERIAL : 1 800 Pt m . 61 SGMCDEL :KWU EFPY  : 11.0 H. L TEMP (F) : 607 C1. TEMP (F) : 551 G R CTS <76 78 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAME *3 1** 1 2 7 DENTNG 9P o DENTNGTS o PITTING o 00 SAGA SP o 00 84GA TS o 09CC TS o D SCC LAl o FRET (PREH) o FRET (AVB) 6 22 1 1 1 7 5 7 So FRET (LP) o HC FATIGUE o M 0 OHR 3 1 4 Tm Pit m o o o 3 o 3 1 o 7 o 22 1 3 1 7 o 5 8 o 61 7073LEEVED o T. L OUTAGE o UTILITY CONTACT: LOder / R. Bouecke

• 2 tubes out of 3 were puted because of unirderpretable ECT-si9nels PH:NE MM;u , 49 9131 18 2077 / 49 9131 18 9410 Resu8: Wasta9e + Pitting

                                                                                                             ** Tube was puted w-- of uninterpretable ECT agnals Roeult:Wasta9e + OOSCC A-17

l Appendix A UTLITY EIF TOTAL TUBES : 10,083 PLANT : BLAYAIS 1 TUBE MATERIAL : 1-600 MA PLUGGED 170 SGMCOEL  : FRAM-51M EFPY  : 8.8 H. L TEMP (F) : 613 CL TEMP (F) : 546 DERUTS 476 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o O DENTNG SP DENTNG TS 27 4 31 PITTNG 0 00 SAGA SP 0 00 SMGA TS 0 O SCC TS 1 16 1 5 11 13 8 30 85 0 SCC UB 2 2 FRET (PREH) 0 f 1 1 2 4 FRET (AVB) AU RM 2 1 3 2 8 HC FATIGW 0 ERRCORR 0 OHiR 18 1 21 40 TOTRUGGED 0 0 0 0 0 0 0 18 1 18 2 0 5 0 17 43 30 36 0 170 TO7S.EEVED 0 T.L OUTAGE o UTLITYCONTACT: R Comby PH3E PAMIER 1 49-22 86-78 l I l l l l l l A-18

                           .          .. _ .          . .     .     . . - . . . .         _ - - . . . . . . .                . . - . . ~ . . - - .        . - --- . .-    --.
  ..      s Appendix A UTILITY . EF                                              TOTALTUBES : 9,967 PLANT       BLAYAIS 2                                     TUBE MATERLAL : 1600 MA PLUGGED         93                                        SGMODEL                   : FRAM 51B1 EFPY       : 8.1                                          H. L TEMP (F) ; 613 C.L. TEMP (F) : 546

. DERCTS 476 76 77 78 79 80 81 82 83 84 85 88 87 88 89 90 91 92 93 TOTAL WASTAGE o DENTNG SP 0 DENTNGTS 54 2 56 PfTTNG 0 OD SAGA SP 0 OD SAGA TS 0 0 SCC TS 2 1 2 2 1 2 10 0SCCLB 1 1 2 FMT(PREH) 0 FRET (AVB) ' 1 1 1 1 1 5 FRET (LP) 3 2 1 6 HC FAT 1GJE o EAFevvim 1- 1 OMR 4 1 1 2 5 13 TOTPLUGtED 0 0 0 0 0 0 0 0 4 2 4 4 1 0 5 56 5 3 9 93 l J TOTSEEVED 0 T.L OUTAGE o UTIUTY CONTACT: R. Corey PH3ERMIER 149228678 A-19

 . _ . _ . _ _ . . .      ._..._.______-.._-.......m                           - _       . ~ . _ . _ .      . _ _ _ . .- _ . _ . _ . . _ _ . _ _ _ _ _ . . . _ . . _ _ _ _ . . - _ .

s . AppendixA I UTUTY : IIF TOTALTUBES : 9,987 PLANT ; BLAYAIS 3 TUBE MATERIAL : 1-600 MA PLUGGED. 111 SGMODEL  : FRAM 51B1 ) EFPY  : 7.5 H. L TEMP (F) : 613 C.L TEMP (F) : 546

                                           <76      76   77  78  79  80  81  82    83   84         c5    as        87           88          89           90          91          92    93 TOTAL (MiFECTS O

WASTAGE 0 DENTNG SP 62 20 82 DENTNG TB 0 PfTTNG 0 00 SAGA SP 0 00 SAGA TS 1 1 5 3 to D SCC TS 0 D SCC t2 0 FRET C 0 1 1 1 2 5 FRET (AVB) O FRET (LP) O HC FATIGUE i 0 ERv m AJrm 6 2 5 14 OHiR 1 TOT W 0 0 0 0 0 0 0 0 6 1 1 0 0 1 1 70 23 1 7 111 TUT 5 EEVED 0 T. L. OWAGE O UTUTY CONTACT: R.Combv PHOPE PAAGER 149228678 i l l A-20 i i

 - _.     .      - . . - _ - .                     . ~      . . = _ _ - _ . _ _ . . . _ . - _ . .. . . . . . ~ . . . _ . . . _ . _ _ _ .                                       .,__. _ __ _ , _ _,__ _ _

Appendix A triluTY : EE TOTAL TUBES : 9,990 PLANT : BLAYAIS 4 TUBE MATERLAL : 1600 MA (SG1 SG2)

1600 TT (SG3)

PLUGGED: 215 SGMODEL  : FRAM 518 EFPY  : 7,6 H. L TEMP (F) : 613 CL TEMP (F) : 546 DER CTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o DENTNG SP 0 DENTNG TS 53 2 4 59 PITTNG 0 OD SAGA SP 0 00 SAGA TS 0 0 800 TS 6 1 7 0 SCC LB 1 2 3 FRET (PREH) 0 FRET (AVB) 0 FRET (LP) 4 1 6 3 3 1 17 HC FATIGUE o EFivv0RR 0 OHR 3 8 1 1 4 106 6 129 TOT M t raram 0 0 0 0 0 0 3 , 0 0 8 5 1 1 16 3 162 8 4 4 215 TOTM.EEVED 0 T.L OLTTAGE o UTUTYCONTACT: R. Comtw l PK) PEE M.ASER 149228678 l A-21

s . Appendix A UTLITY . EPZ TOTAL TUBES : 8,468 PLANT : BORSSELE TUBE MATERIAL : l-800 PLUGGED 123 SG h0 DEL :KWU EFPY  ; 15.2 H. L TEMP (F) : 606 C.L TEMP (F) : 558 CEFECTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 02 93 TOTAL WASTAGE 49 41 1 3 3 3 13 1 114 DENTNG SP O DENTNG TS 0 PITTNG 0 00 SMGA SP 0 00 SAGA TS 0 0 SCC TS 0 0SCCLB 0 FRET (PREH) 0 FRET (AVB) 9 9 FRET (LP) O HC FATKKE O ERRCORR 0 OWER 0 TOTPLUGED 0 0 0 0 49 0 41 1 0 3 0 3 0 3 0 13 10 0 0 123 TOT S.EENED 0 T.L OlrTAGE 1 1 UTLITY CONTACT: S. Odar / R Bousche PHCNE MAEER 49-9131 18-2077 / 49-9131 18-9410 A-22

.. .. 1 l Appendix A I l l UTILITY : NTH EDGON TOTALTUBES : 18,696 PLANT : BRAIDWOOD1 TUBE MATERIAL : 1600 MA PLUGGED. 333 , SGMODEL  : W-D4 EFPY  : 4.0 H.L TEMP (F) : 608 CL TEMP (F) : 557 EFE:TS <76 76 77 78 79 to 81 82 83 84 05 86 87 88 89 90 91 92 93 TOTAL  ; WASTAGE o DENTNG SP O CENTNG TS 0 PfTTNG 0 OD SAGA SP 30 166 116 312 OD SAGA TS 0 0 SCC TS 0 0 SCC UB 0 FRET (PREH) 0 FRET (AVB) 2 4 6 17 FRET d.P) 0 1 1 HC FATKFE ERnCORR 0 OM74 4 1 2 1 8 TOTPLt N 0 0 0l 0 0 0 0 0 0 0 0 0 0 0 6 0 36 174 117 333 l TOTREEVED 0 1 1 T.L OUTAGE UTLITY CONTACT: John Bkwnoren PKNildMBER 708-663 7215 A-23

AppendixA UTLITY : OOlm0NWEALTH EDSON . TOTAL TUBES : 18,696 PLANT . BRAIDWOOD2 TUBE MATERIAL : 1-600 TT PLUGGED, 29 SGMODEL :WD5 EFPY  : 4.0 H. L TEMP (F) : 608 C.L TEMP (F) : 557 (EiFECTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 09 90 91 92 93 TOTAL o WA5TAGE 0 DENING SP 0 DENTNG TS 0 PfTTNG O OD SAGA SP 0 OD S4GA TS 0 0 SCC TS 0 DSCC UB O FRETCO O FRET (AVB) 2 11 16 29 0 FRET A.P) HC FATIGE 0 0 ERRCORR 0 OMER TOTPLUGED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 11 0 16 29 70fREEVED 0 T. L. OUTAGE o UTLITY CONTACT: John Blomoren PHDEld mas 3t 708-C63-7215 A-24

 .                                                                                                            l l

AppendixA UTILITY MEFMRAFTWIRC TOTALTUBES : 16,344 BROMDORFQ tH PLANT : IROMD0fF TUBE MATERIAL : 1800 PLUGGED- 0 SGMCEEL  : KWU-54GS EFPY , 5.7 H. L TEMP (F) : 618 CL TEMP (F) : 558 DERCTS <78 78 77 78 79 80 81 02 83 84 85 88 87 88 89 90 91 92 93 TOTAL WASTAGE o DENTNG SP 0 DENTNG TS 0 PfTTNG 0 00 SAGA SP 0 OD S4GA TS 0 090C TS 0 D90C ts 0 FRET (PREH) 0 FRET (AVB) 0 FRET (LP) 0 HC FAT 10UE O ERRCORR 0 ODER 0 TOTPLUGGED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TOTR.EEVED 0 T. L OUTAGE o UTEJTY CONTACT: S. Oder / R. Bouseke PKN!p ampst 49 9131 18 2077 / 49-9131 18 9410 i A-25

4. . . _ . . _ _ _.. . .._m_ . . . . . _ . . _ _ . . . . . _ ._ _ _ _ _ . _ ,___ _ ._. . . . . _ . _ . _ . . _ _ . _ _ . . _ _ . _ _ . . _ . _ _ . . . _ _

AppendixA l TOTALTUBES : 33,600 UTLITY : CNTAROHYDRO PLANT : BRUCE-A 1 TUBE MATERIAL : 1400 (SR) PLUGGED

• 46 SGMODEL  : B&W CANADA i

I EFPY  : 12.9 H. L TEMP (F) : 579 i CL TEMP (F) : 509 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL DEFECTS <76 76 77 78 o WASTAGE O CENTNG SP 0 DENTNG15 0 PfTTING 0 00 SAGA SP 0 00 S4GA TS 0 0 SCC TS 0 0SCCLS 0 FRET C 0 0 CRET (AVB) 0 FRET (LP) 9 9 HC FATIGUE 0 ERRCORR 5 31 37 OMER 1 0 0 0 0 0 0 0 1 0 0 0 0 6 0 0 0 40 0 0 46 TUTPLUGED 0 TOT 5.EEVED

                                                                                                                                 !                                                                             5            1         6 T. L. OUTAGE UTLITY CONTACT: C C. Maruska                                                                                            (SR) STRESS REUEVED PK NEPUheER.                             (416) 592 5668

+ A-26

  .e s AppendixA UTUTY : CNTMWOHYDRO                                                                                                                                                TOTALTUBES : 33,600 PLANT : BRUCE A2                                                                                                                                                   TUBEMATERIAL : l-600 (SR)

Pt m ' 1447 SGMODEL  : B&W CANADA EFPY  : 11.1 H. L TEMP (F) : 679 C.L TEMP (F) : 509 OIFECTS 476 78 77 78 78 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE 0 DENTNG $P 0 DENTNG TB 0 PfTTING 0 OD S/lGA 8P *103 *056 *440 1399 00 84GA TS 0 0 800 TS 0 0 SCX:tm o PRET(PREH) 0 FRET (AVB) 0 FRET (LP) 0 HC FATIGUE 4 3 3 1 11 ERROOFR 1 1 OMR 2 1 1 32 36 1DTPt1 N O O 4 5 6 0 0 0 0 0 0 0 0 0 1 1 135 856 440 1447 1DTREEVED 0 T.L OUTAGE 2 1 2 1 6 UTLITYCONTACT: C. C. Maruoka

• Load assised SCC PHOPE paJhBER (die) 582 5668 A-27

e . AppendixA UTLITY : CNTAE HYDRO TOTAL TUBES : 33,600 PLANT

• BRUCE-A 3 TUBE MATERIAL : 1-600 (SR)

FtDGGED 20 SG MODEL  : B&W CANADA EFPY  : 12.3 H. L TEMP (F) : 579 C.L TEMP (F) : 509 DE R CIS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o O DENTNG SP DENTNG TS 0 Pf7TNG 0 00 SMGA SP o 00 SAGA TS 0 0 SCC TS 0 0SCCts 0 FRET (PROS 0 FRET (AVB) 0 FRET (LP) 0 HC FATIGW 3 1 4 ERRCORR 0 OTER 4 1 11 16 TOTPLUGED 0 0 0 0 0 0 0 0 7 1 0 0 0 0 0 0 0 12 0 20 I TOTS.EEVED ' O T. L OUTAT 1 2 2 1 6 UTLITY CONTACT: C. C. Maruska PHOEPAABER (dio) 592 5668 l A-28 1

AppendixA UTILITY : ONTARIOHYDRO TOTAL TUBES : 33,600 PLANT . BRUCE-A 4 TUBE MATERIAL : 1400 SR) R.UGGED 51 SGMCOEL  : B&W CANADA EFPY  : 11.8 H.L TEMP (F) : 579 CL TEMP (F) : 509

          . OEFECTS                          <76   76    77   78        79           80     81   82       83          84     85  86        87   88    89      90  91      92       93 TOTAL WASTAGE                                                                                                                                                                                o DENTNG SP                                                                                                                                                                              0 DENTNG TS                                                                                                                                                                             0 PffTNG                                                                                                                                                                                0 OD SAGA SP                                                                                                                                                                            0 00 SAGA TS                                                                                                                                                                            0 0 SCC TS                                                                                                                                                                              0 DSCC tm                                                                                                                                                                               o FRET (PREH)                                                                                                                                                                           0 FRET (Ave)                                                                                                                                                                            0 FRET EP)                                                                                                                                                                              0 HC FATIGUE                                                                                        1                                                                                   1 Eis,wim                                                                                           1                                                                       1           2 OHiR                                                                                   1          3                                                                     44          48 TOTPLUGGED                         0    0      0    0            0           0    0    1          5           0   0    0         0   0         0   0    0        0      45          51 TOT 5.EEVED                                                                                                                                                                           0 T. L. CUTAGE                                                                                       1                                                                                  1 UTLITY CONTACT: C. C. Maruska PKN!M.4eER                           (416) 592 5668 A-29

AppendixA i UTLITY ONTARIOHYDRO TOTAL TUBES : 33,600 PLANT BRUCE-8 5 TUBE MATERIAL : 1400 (SR) PLUGGED 7 SGMODEL  : B&W CANADA EFPY  : 7.6 H. L TEMP (F) .579 C.L TEMP (F) : 509

            <76         76   77   78  79  80  81  82   83     84  85  86     87  88  89  90  91   92    93 TOTAL (MFECTS O

WASTAGE 0 DENTNG SP 0 DENTNG TS 0 PITTNG O _0_0 S4GA SP 0 OD SMGA TS 0 0 SCC TS O DSCCLE 0 FRET (PREM 0 FRET (Ave) O FRET (LP) HO FATIGW 0 0 ERRCORR 7 7 OMR TOTRUGED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7 7 TOT REEVED 0 T.L. OUTAGE o UTLilY CONTACT: C. C. Maruska PHONEf4ASER; (416) 592 5868 A-30

e e Appendix A k i ! UTILITY CNTAHIOHYDRO TOTAL TUBES : 33,600 PLANT : BRUCE 4 6 TUBE MATERIAL : 1600 (SR) PI N : 13 SGMCDEL  : B&W CANADA i EFPY . 7.3 H. L TEMP (F) : 679

CL TEMP (F)

500 d

,                                                                                                                        1

' <76 76 77 78 70 80 et 82 83 84 e5 to 87 88 89 90 91 92 93 TOTAL DEFE:TS 2 WASTAGE o DENTNG SP 0 DENTNGTS 0 PffTNG 0 00 8/lGA SP 0 l 4 00 SnGA TS 0 0 SCC TS 0 DSCCLB 0 FRiff(PREH) 0 l 1 l FRET (AVB) 1 0 ? j AD RM HC FATIGLE O Eiwevurwi 0 OW 1 11 12 10T Pt_i_m 0 0 0 0 0 0 0 0 0 0 0 0 0 1 12 0 0 0 0 13 TOT 8LEEMD 0 T.L OUTAGE O UTLITY CONTACT: C. C. Maruska PKN! MASER (416) 592 5668 t I i

                                                                                                                          }

i 1 A-31

AppendixA U1LITY . CNTAROHYDRO TOTAL TUBES : 33,600 PLANT BRUCE 8 7 TUBEMATERIAL : 1-600 (SR) PLUGGED 4 SG MODEL  : B&W CANADA EFPY . 6.4 H. L TEMP (F) : 579 CL TEMP (F) : 509 CEFECTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL 0 WASTAGE 0 DENTNG SP 0 DENTNG TS PITTNG 0 00 SSGA SP 0 00 SAGA TS 0 0 SCC TS 0 DSCC(2 0 0 FRET (PREH) FRET (AVB) 0 FRET (LP) 0 HC FATIGLE O i 1 ERRCORA Of)ER 3 3 TOTRUGED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 0 0 4 TOT SLEEVED 0 T.L. OUTAGE 0 UTLITY CONTACT: C. C. Maruska PHCNiMAGER (416) 592-5668 l l l l l l A-32 1

e e Appendix A UTIUTY : ONTARO HYDRO TOTAL TUBES : 33,600 PLANT : BRUCE-B 8 TUBE MATERIAL : 1600 (SR) FLUGGED: 19 SG MODEl.  : B&W CANADA EFPY 5.2 H. L TEMP (F) : 579 CL TEMP (F) : 509 DERCTS 476 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 02 93 TOTAL WASTAGE o OENTNG SP 0 0FNTNG TS 0 PfTTNG 0 00 S/ IGA SP 0 00 SAGA TS 0 0 SCC TS 0 DSCC(B 0 FRET (PREH) 0 FRET (AVB) 3 to 13 FRET (LP) 0 HC FATIGUE o ERACORA 0 OMR 4 2 6 TOTPLUGGED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7 0 0 12 19 TOT SLEEVED 0 T.L OUTAGE o UTLITY CONTACT: C. C. Maruska PHJPE MJ43ER (416) 592-5668 A-33

• O Appendix A UTLITY : EF TOTAL TUBES : 10,164 I

PLANT : BUGEY2 TUBEMATERAL : 1600 MA PLUGGED: 342 SGMODEL  : FRAM-51A l EFPY . 9.2 H. L TEMP (F) : 613 C.L TEMP (F) : 546 M RICTS 476 76 77' 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o DENTNG SP 0 DENTNG TS .O PtTTING 0 00 SAGA SP O OD SAGA TS 2 1 26 4 33 08CC TS 1 7 13 3 24 i OSOCLE 10 84 94 1 189 FRET (PREH) 0 FRET (AVB) 10 2 3 4 4 23 FRET (LP) 1 4 12 0 0 28 HC FATIGLE i 0 ERRCXNWI O OMIR 4 29 to 2 45 TOTPLUGG!D 0 0 0 0 0 0 0 0 to 09 98 10 2 0 18 38 56 21 0 342 l Toies*VED 0 T. L. OUTAGE O UTUTY CONTACT: R.Comtw PKN* P&MIER 149228678 l l A-34

 . . _ -    . _ - . . _ _ . .-     _____....___...._.____.__.._..____m                                            .. _ _ . . _ _ _ -_ _ _ _ . _ _ .                  . . . _ _ _ . . . . _

Appendix A 1 I UTLITY : EEF TOTALTUBES : 10,164  ! PLANT .BUGEY3 TUBE MATERIAL .: l 600 MA RUGGED 209 SGMODEL  : FRAM 51 A , 1

                                                                                                                                                                                           )

EFPY  : 9.2 H. L TEMP (F) : 613 1 C.L. TEMP (F) : 546 DGECTS <76 78 77 78 79 80 81 42 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE O DENTNG SP 0 DEPmNGTS 0 PfTTNG 0 i OD S/ IGA SP 10 10 00 S/lGA TS 2 6 '8 D SCC TS 1 1 3 2 1 13 to 31 DSCC(2 1 2 3 FRET (P5GC 0 FRET (AVB) 34 7 3 28 8 15 95 FRET (LP) 1 11 0 21 HC FATIGUE O ERRCORR 0 1 Cme 11 1 1 1 27 41 j TOTPLUGGED 0 0 0 0 0 12 0 0 3 0 1 37 9 27 0 31 37 0 52 209 TOTSLEEVED 0 T. L. OUTAGE 1 1 UTLITY CONTACT: R.Comby PK)PE M.ASER 1 49 22 86-78 A-35

AppendixA UTLITY : EEF TOTALTUBES : 10,164 PLANT .BUGEY4 TUBEMATERIAL : 1400 MA PLUGGED 440 SGMODEL  : FRAM-51A EFPY  : 9.4 H. L TEMP (F) : 613 CL TEMP (F) : 546 MHr5 <76 76 77 78 79 80 81 82 83 84 SS 86 87 08 89 90 91 92 93 TOTAL WASTAGE o OENTNG SP 0 DENTNGTS 0 PfTTNG 0 00 SAGA SP 2 2 OD SSGA TS 2 53 27 11 93 D SCC TS 3 1 2 1 2 6 1 16 OSOCLE 94 186 3 4 287 FRET (PREH) 0 FRET (AVB) S 2 4 1 12 FRET (LP) 9 9 18 HC FATIGLE 0 EMCORR 0 i OH!R 6 1 2 1 2 12 TOTFLUG3!D 0 0 0 0 0 0 0 0 6 97 186 6 0 5 21 57 0 48 14 440 TUTS.EEE o T. L OUTAGE O UTLITY CONTACT: R.Comby l PH3EN.MIER 1 49 22 06-78 l A-36 l

s > d a Appendix A 4 ) UTIUTY : IEF TOTAL TUBES : 10,164 i t PLANT : BUGEY 5(ORIGNAL SG) TUBE MATERIAL : 1600 MA PLUGGED 1064 SGM00EL  : FRAM-51A i EFPY- . 9.5 H. L TEMP (F) : 613 3 l CL TEMP (F) : 546 t (EFETS <76 78 77 78 79 80 s1 82 83 84 e5 ss 87 se 39 90 91 92 93 TOTAL WASTAGE o f o DEPmG F DENTNGTS R 0 PfTTING E o f.

OD S4GA SP 1 'S 2 P 6 OD SnGA TS 2 1 L 3

, O SCCTS 9 3 62 12 19 61 53 215 312 203 A 949 OSCCtB 1 3 6 3 C 13 i E o ! FRET (PRFM FRET (AVB) 1 6 8 4 7 7 D 33 j FRET (LP) 4 1 11 16 I HC FATGlK o 4 i ERRCORR o 4 OBE!R 6 4 9 2 7 16 44 TOTPR m o o o 6 o o 5 9 3 67 1s 30 67 0 71 224 331 233 1064 l i TOT m 76 76 I T. L OUTAGE 1 1 1 3 UTIUTYCONTACT: R Comtw I PKNEN 149 22 s6-7s 1 A-37

4 s Appendix A l UTluTY : rnmanNWEALTH EDISON TOTALTUBES : 18,696 PLANT BYRON 1 TUBE MATERIAL : 1400 MA R1JGGED: e47 SGMODEL  : W-D4 EFPY  : 6.2 H. L TEMP (F) : 606 CL TEMP (F) : 557 DERE;fs 76 77 78 79 80 s1 82 e5 86 87 ss 89 90 91 92 93 TOTAL

             <76                                      33 l 84 4      5                         4    13 WASTAGE 0

DENTNG EP 0 DEPUNG TS 11 11 PUTING 13 135 54s 696 OD SAGA SP 0 OD SnGA TS 2 1 1 2 49 55 O SCC TS l 1 39 40 DSCCLAS FET(~;C ?, O i 1 l FRET (AVB) FRET (LP) 0 O HC FATIGUE 1 1 E7WKXNE 19 2 1 2 6 30 OH!R TOTPtim 0 0 0 0 0 0 0 0 19 0 0 0 10 46 0 16 14e 0 60s 847 TUTSEEVED 0 T.L OUTAGE 2 2 UTLITY OONTACT: John Biornaron PHDEPsASER 70s-663-7215 l 1 i l A-38

     . . . - . . . . . - . . . . . . . . . . . - . .-.-.~
                                                             , . - ~ - _,,_ -. _~ _ _ _ - _ . _ -....                                                  _...___.. ._._.. . . _ _ _
   $          e Appendix A                 l l

l l UTILITY : NTHEDtRON TOTALTUBES : 18,696 PLANT BYRON 2 TUBEMATERIAL : 1400 TT l Pil wwn: 104 SGMODEL  : W D6 l l EFPY  : 4.8 H. L TEMP (F) : 608 , CL TEMP (F) : 557 1 l DEFECTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 to 91 92 93 TOTAL  ; l WASTAGE o DENTNG SP 0 DENTNGTS o Pf1 TING o j OD SAGA SP o OD SAGA TS o O SCC TS o DSCC42 0 , FRET (PREH) o j FRET (AVB) 24 32 56 J FRET (LP) o FC FATIGUE o Eish o OHR 11 32 5 48 I TOTPilrw*n o o o 0 -o o o o o o o o 11 o o 32 0 29 32 104 TOTSLEEVED o T.L OUTAGE o a . UTLITY CONTACT: John Blomaren i Ft0PEMAER 708 663 7215 4 e 2 3 e k A i

 +

3

A-39

Appendix A UTLITY : UMON ELECTRC COMPANY TOTAL TUBES : 22504 PLANT : CALLAWAY TUBE MATERIAL : 1-600MA l 1 PWGGED: 141 SGMODEL  : W-F EFPY . 7.3 H. L TEMP (F) : 618 C.L TEMP (F) : 558 CEFECTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL o WASTAGE 0 DENTNG SP 0 DENTNG TS PffTNG 0 0 OD SnGA SP 0 00 SnGA TS 0 0 SCC TS 0 SCC UB 0 FRET (PHEH) 0 FRET (AVB) 10 12 22 29 31 104 5 5 FRET (LP) HC FATIGUE O i ERRCORR 0 OM!R 25 3 1 2 1 32 TOTPltecn 0 0 0 0 0 0 0 0 25 0 0 0 13 0 12 23 0 31 37 141 TOTE.EEVED 0 T.L. OUTAGE O UTLITY CONTACT: Ron Affoner PM MEN.841ER (314) 676 8240 l I l i l l l i ! A40

_ _ . . . _ . _ . .. . . _ _ . . , _ . . _ . . . . _ . . . _ . _ . , _ _ ._ . - . . . ~ . . . _ _ _ . _ _ . _ . _ . . . _ . _ . . . . _ _ _ . . _ _ . . . _ . _ _ i . Appendix A UTILITY , BALTIMOREGAS& ELECTRIC TOTALTUBES : 17038 PLANT : CALVERTCUFFS1 TUBEMATERIAL : 1-600 MA PLUGGED: 195 SGM00EL  : CE 67 EFPY :12.4 H. L TEMP (F) : 595 C1. TEMP (F) : 550 DERCTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WANTAGE o DENTNGSP 0 DENTNG TS 0 PfTTNG 0 00 SAGA SP 0 00 SAGA TS 14 20 63 2 11 10 120 10 SCC TS 0 ID SCCls 0 FRET (PREH) 0 FRET (AVB) 2 9 1 8 20 FRET (LP) o ! HC FAT)SJE o Eid,wreg 0 OMR 3 26 5 6 10 4 1 55 TOTpityancn 0 0 0 3 0 0 0 26 5 0 22 39 0 68 2 12 0 18 0 195 TUT SLEEVED 0 T. L. OUTAGE o I 4

UTILITY CONTACT

Craic Smith PHOPEMAGER (301) 260 3871 i

A-41

_ _ ___ _ _. _._.__.___. _ . _ . _ _ . ._ . _ . . _ _ _ _ _ . . _ - . _ . - _ . . . _ . _ . _ ._. ..m_._____.. ...m _ . . _ _ . . .- Appendix A UTLITY , BALTWORE GAS & ELECTRC TOTAL TUBES : 17038 PLANT : CALVERTCUFFS2 TUBE MATERIAL : 1400 MA PLUGGED. 133 SGMODEL :OE47 EFPY  : 11.7 H. L TEMP (F) : 595 C.L TEMP (F) : 550 l CEFECTS <76 76 77 78 79 80 at 82 83 84 85 86 87 88 89 90 91 02 93 TOTAL l _ WWW 0 DENfNG SP 0 DENTNG TS 0 PfTTNG 0 00 S%A SP 4 4 00 SMA TS 3 7 36 13 9 6s D SCC TS 0 DSCC12 0 FRET (PREH) 0 FRET (Ave) 1 2 9 7 19 FRET (LP) 0 HC FATIGtK 0 ERRCORR 0 OME 9 2 2 4 16 2 7 42 TOTPLUGE D 0 0 0 9 0 0 0 2 0 6 13 0 61 0 22 0 0 0 20 133 TOT 5.EIMD 0 T. L. OUTAGE 0 I UTLITYCONTACT: Craio Smith PHOPE!M.541ER. (301) 260-3871 A-42

  . _ . - - . .             ~ . - . . ...- - - ..- -                           -.     -...       .-                      . - . - . ~ . . . _ - - , - - - - . .                                                    . . . . . . .

9 P AppendixA UT1UTY DL.ME POWERCO. TOTAL 1UBES : 18,696 PLANT : CATAWBA 1 TUBE MATERIAL : 1600 MA l PtI m , 1480 SGhCOEL :W03 l l l EFPY  : 6.0 H. L. TEMP (F) : 617 l CL TEMP (F) : 559 i [ERCTS <78 78 77 78 79 40 81 82 83 84 85 88 57 88 89 90 91 92 93 TOTAL WASTAGE o OENTDG SP 0 DENTING TS 0 PfTTING 0 i 00 8/1GA SP 17 17 i 00 S4GA TS 158 89 290 537 D SCC TS 53 140 45 41 143 422 D SCCl2 1 15 5 2 23 FRET &fEH) 3 1 8 17 27 FRET (AVB) 1 2 3 FRET (LP) , 7 7 m FATIGUE _ 0 ElmCORR 0 Of>ER 12 8 22 4 112 288 444 TOTPLUGGED 0 0 0 0 0 0 0 0 0 0 <i 12 0 82 0 182 230 254 740 1480 TOTSLEENED 75 108 183 T. L OUTAGE 1 1 tmWTY CONTACT: Den Maves PHCPE MAGER 704 382 4211 l l i l i I A-43

AppendixA UT8.ITY : CUE PCM4"RCQ TOTALTUBES : 18,696 PLANT : CATAWBA 2 TUBE MATERIAL : 1600 TT PLUGGED: 135 SGMCCEL  : W-D5 EFPY  : 5.3 H. L TEMP (F) : 618 , i 1 C.L TEMP (F) : 559 l CERL"T3 <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 02 93 TOTAL WASTAGE o DENTNG SP O DENTNGTS 0 PffTNG 0 OD SAGA SP 0 00 SAGA TS 0 0 SCC TS 0 D SCC LB 0 FRET (PREH) 0 FRET (AVB) 14 6 2 22 FRET (LP) 3 4 3 5 6 21 HC FAT 10UE O ERACORR 0 01MR 46 4 4 2 1 35 92 TOTPLUGGD 0 0 0 0 0 0 0 0 0 0 0 46 0 7 8 19 12 0 43 135 TOTS.EE'@ 0 T. L OUTAGE o i UTLITY CONTACT: Dan Mawe PRN!MABER 704 382 4211 l l I A-44

1 l l Appendix A UTILITY : EN TOTAL TUBES : 21,368 PLANT : CATTENOM1 TUBE MATERIAL : 1600 TT PLUGGED. 52 SGM00EL  : FRAM 68/19 EFPY

• 3.9 H.L TEMP (F) : 616 C1. TEMP (F) : 559 DEFECTS <78 76 77 78 79 80 81 82 83 84 85 86 87 88 89 00 91 92 93 TOTAL WASTAGE O DENTNG SP 0 DENTNGTS 21 3 24 PfTTNG 0 00 SAGA SP 0 00 S/ IGA TS 0 '

I D SCC TS 0 ' DSCCLB 0 FRET (PREH) 0 FRET (AVB) 0 FRET (LP) 12 12 HC FATK1JE O ERROORR 0 OTHiR 15 1 16 ! TOTPLUGGED 0 0 0 0 0 0 0 0 01 0 0 0 0 0 0 21 15 15 1 52 TOTSLEEVED 0 T.L 0:frAGE o UTILITY CONTACT: R. Comby PHCNEM.8EsER 1 49-22 86 78 A-45

AppendixA UTLITY : EEF TOTAL TUBES : 21,368 PLANT : CATTENOM 2 TIEEMATERIAL : 1600 TT PLUGGED: 164 SGMODEL  : FRAM.68/19 EFPY  : 4.0 H. L TEMA (F) : 616 C.L TEMP (F) : 559 CIRCIS <76 76 77 74 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL O WASTAGE O DENTNG SP 72 1 73 DENTNG TS 0 PITTNG 0 00 SAGA SP 0 00 snGA TS 0 0 SCE TS 0SCCts o FRET (PREH) 0 FRET (AVB) 0 AUiM 4 5 9 HC FATIGLE o ERRCORR 0 ODER 2 74 2 4 82 TOT W 0 0 0 0 0 0 0 0 0 0 0 0 0 0 76 2 75 7 4 164 . TOT!LEIMD 0 T. L. OUTAGE

                                                                                                              '                                                                                            o UTLITY CONTACT: R.Comby l                      ,na -                           ,.4........,.

l I i A-46

   .      _ _ . _ - - _ . - - _ _ _ _ _         _ _ _ _            _.-.m.     - -_          .     - - . . _ . . _ _ _ _ . _ _ _ _ - _ _ . _ _ _ . .             . . _ .       _ _ _ . . _ _ _ ____

1 i 1 Appendix A 2 UTLITY : EtF TOTAL TUBES : 21,368 PLANT : CATTENOM 3 TUBE MATERIAL : l-600 TT PLUGGED: 11 SGMODEL  : FRAM 68/19 EFPY  : 2.3 H. L TEMP (F) : 616 C.L. TEMP (F) : 559 GIRCTS <78 76 77 78 79 80 81 82 83 84 85 88 87 88 89 90 91 92 93 TOTAL ' O WASTAGE DENTNG SP 0 DENTNGTS 0 PffTNG 0 00 S4GA SP 0 00 SAGA TS 0 O SCC TS 0 09CCUB ,_ 0 FRET PREH) O FRET (AVB) 0 FRET A.P) 0 E FATKKJE O ERRCORR 0 OH7t 9 2 11 TOTPLUGGED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9 2 11 TOTEEEVED 0 T. L. OUTAGE o UTIUTY CONTACT: R. Con 1by PHONEPAASER 149228678 I 1 J 1 4 4 A-47

 .. . .... - - _ - ... . . _ .- - _ . - _ _ - - . . - - . - . . . . . . - . _ . - . . . - . - - - . _                                            - - . . ~ _ . . . . . . _ - . . . . ,

Appendix A UTLITY : IIF TOTAL TUBES : 21,368 PLANT CATTENOM 4 TLBE MATERIAL : l-800 TT I PWGGED' 22 SGM00EL  : FRAM 68/19 EFPY  : 1,7 H. L TEMP (F) : 616 C.L TEMP (F) : 559 WFEC15 476 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o 0 OENTNGSP DENTNG 75 0 PfTTNG 0 00 SAGA SP 0 00 SAGA TS 0 0 SCC TS 0 0 SCC UB 0 FRET (PREH) 0 FRET (AVB) 0 FRET (LP) O HC FATIGUE O ERRCORR 0 OHiR 15 7 22 a TOTPtL W 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 15 0 0 7 22 TOT!LEEVED 0 T.L OLTTAGE o UTUTY CONTACT: R. Comtw PHOPEMAest 1-49 22-86-78 i: f A-48

                                                                                         - . - . ~ . . - . .                   . . - . - . _ - - - _

AppendixA UTLITY : EEF TOTALTUBES : 9,987 PLANT l CHNON B1 1UBEMATERIAL : 1-600 MA PLUGGED: 6 SG MODEL  : FRAM 51BI EFPY  : 7,7 H. L TEMP (F) :613 C.L TEMP (F) : 546 DEFICIS 476 78 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o MNTNGSP O DENTNGTS 0 PITTNG 0 I 00 SAGA SP 0 OD SAGA TS 0 D SCC TS 0 DSCCLB 2 2 l FRET (PREH) 0 FRET (AVB) 0 FRET (LP) 0 HC FATI(Mi 0 U,,wem 0 01HER 2 2 4 Tofpivven 0 0 0 0 0 0 2 0 0 0 0 0 0 2 2 0 0 0 0 8 TUTILEEVED 0 T. L. OUTAGE O UTLITYCONTACT: R. Comtw PKNENLMER: 149228678 A-49

 . . - - . . _ - .         .- . . . . . . . _ ~ . . _ . . - . . - - . . - -                         . . .     . _ - - .            . . _ - - . . . . . - . .._-._.. .....=-                    __ . . -

AppendixA l UTLITY : EF TOTAL 11)SES : 9,990 PLANT : CHNONB2 TUBE MATERIAL : 1600 MA PLLDJED: 42 SGh00EL  : FRAM 51B EFPY  : 6.9 H. L TEMP (F) : 613 C.L TEMP (F) : 546 GFENS <76 76 77 78 79 to 81 02 33 84 85 86 87 88 89 90 91 92 93 TOTAL O WASTAGE 0 DENTNG SP 0 DENTNGTS Pff7NG 0 0 00 S/ IGA SP 0 00 S/lGA TS D SCE TS 9 3 20 32 DSCC12 0 0 FRET (PREH) FRET (AVB) 0 O FRET LP) HO FATIGW 0 ERRCORR 0 OH!R 7 3 10 TOTRim 0 0 0 0 0 0 7 0 0 0 0 0 0 0 0 9 6 20 0 42 TOT!LEEVED 0 T. L OUTAGE O l l UTLITY CONTACT: R.Comby PHamp ammt 149-22 es-7s l 1 l l A-50

_ _. - ._ _ .___ _ _ . _ _ _ _ _ . _ . _ _ . . . _ . . _ _ _ . _ . . . . _ . _ - _ _ _ _ . _ _ _ _ _ _ _ . . . _ . - ~ _ _ _ . _ _ _ _ - . _ . . _ _ AppendixA UTIUTY : EF TOTAL 1UBES : 9,987 PLANT : CHNONB3 TUBE MATERIAL : l-600 TT Pi m : 12 SGMODEL  : FRAM 51B EFPY  : 5.0 H. L TEMP (F) : 613 C1. TEMP (F) : 546 DER CTS <78 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o DENTNG SP 0 DE>mNGTS 0 PfTTNG 0 OD SAGA SP 0 i 00 SAGA TS 0 0 SCC TS O OSCCts o FRET (PREH) 0 FRET (AVB) 0 j FRET G.P) 1 1 HC FATIGUE o Er,,wrm 0 OHR to 1 11 TOT m ' N 0 0 0 0 0 0 0 0 0 0 10 0 0 0 0l 0 0 0 2 12 TOTSLEEVED 0 T,L OUTAGE o l UTLITY CONTACT: R.Comtw PHOPE PAAEER 1 49 22-86 78 m. a A-51

l ANA UTLITY . EF TOTAL TUBES : 9,987 l PLANT : CHNONB4 TUBE MATERIAL : 1600 TT PLUGGED: 13 SGhCDEL  : FRAM-51B ! EFPY

• 4.4 H. L TEMP (F) : 613 l

l C.L TEMP (F) : 546 GiFECTS 476 76 77 78 79 80 81 82 83 84 85 86 87 80 89 90 91 92 93 TOTAL WASTAGE 0 0 DENTNG SP 6 5 DENTNG TS 0 PfTTING O OD SAGA SP ! 0 00 ShGA TS 0 SCC TS 0 0 i O S@ ts WC 7, O FRET (AVB) 0 FRET (LP) 5 6 HO FATIGUE o h 0 l OD4!R 2 1 3 TOT W 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 5 1 5 0 13 TOT 5.lEVID 0 T. L. OlRAGE O UTLITY CONTACT: R Comtw l PH0ps p usR; 1 49 22-86 78 A-52

4 I Appendix A UTIUTY : TEXAS UTLmES ELECTRC TOTALTUBES : 18,312 PLANT : COMANCMiPEAK1 TUBE MATERIAL : 1400 MA p i masn: 31 SGMODEL  : W D4 EFPY  : 2.4 K L TEMP (F) : 618 C.L TEMP (F) : 557 DEFECTS <76 78 77 78 79 80 81 82 43 84 85 86 87 88 89 90 91 92 03 TOTAL WASTAGE o DENTNG SP 0 l DENTNGT3 0 Pf7TNG 0 00 SnGA SP 0 0D snGA TS 0 0 SCC TS 0 0 SCC 15 0 FRET (PREM o FRET (AVB) 0 FRET (LP) 0 0 EFATIGLK EFACuns 0 OHR 31 31 TOT R.tyrann 0 0 0 0 0 0 31 0 0 0 0 0 0 0 0 0 0 0 31 l 0 TOTEEENED 0 T.L OUTAGE o UTLITY CONTACT: James Hess ROMEMAGER 817 897 5210 A-53

                                                                                                                                                                                        -e.y,-ym,.7-      .y. y-    r N-                      o--ue-     yy+     ,-eww-              - .  --a-     g -    w  w             . . , , . , -           ,p-   -+--.,m     ,                   -m-9---,g

Appendix A I UTUTY : TEXASUTUTES ELECTRC TOTALTUBES : 18,280  !

                                                                                                                 \

PLANT : COMANCE PEAK 2 TUBE MATERIAL : l 600 MA PLUGGED: 20 SGMODEL  : W D4 EFPY  : 0.4 H. L TEMP (F) : 618 C.L TEMP (F) : 557 76 77 78 79 80 ft 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL G R CTS <76 O WASTAGE 0 DENTNGSP 0 DENTNG TS 0 PITTING 0 00 S/lGA SP 0 00 S/lGA TS 0 0 SCC TS o DSCC LB FRET m t, O 0 FRET (AVB) 0 FRET G.P) 0 HC FATIQW i 0 ERRCORR OM!R 20 20 TOTRLN 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 20 0 20 0 TOTS.EEVED O T.L OUTAGE UTUTY CONTACT: James Hoss l PHONEMASER 817 897-5210 f l A-54

    .    .                                                                                                                                       1 l

AppendixA UTLITY : NORTHEAST UTLITIES TOTAL TUBES : 15,176 PLANT COPNECTEUTYAP4EE(HADOAM NECK TUBE MATERIAL : 1400 MA RUGGED : 1228 SGMODB.  : W 27 3

EFPY  : 18.4 H.L TEMP (F) : 585 CL TEMP (F) : 534 DGE!5 <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL , l WASTAGE 30 1 1 4 38 i DEPENGSP 3 200 20 6 1 1 1 232 DENTNGTS 12 12 PfTTNG 1 12 7 32 51 50 18 15 12 198 OD S4GA SP 0 00 SAGA TS 4 4 I- D SCC TS 2 119 289 141 104 18 871 < l D SCC t2 0 l FM T(PfEH) 0 FRET (AVB) 2 2 1 1 2 2 4 1 1 18 FRET (LP) 0 HC FATN3UE o 1 ERRCORR 0 09 91 4 2 8 1 15 9 10 1 9 59 TUTPO N 38 4 2 0 1 2 25 0 220 67 0 187 353 0 159 1 130 0 39 1228 TUTREEMD 0 T. L. OUTAGE 1 1 UTLITY CONTACT: John KNeiewicz PHOPEPAAeER 203 665 3969 a A-55

Appendix A UTE.lTY EF TOTALTUBES : 9,990 PLANT : CRUAS1 TUBE MATERIAL : 1-600 TT PLUGGED: 49 SGMODEL  : FRAM 518 EFPY  : 7,0 H. L TEMP (F) : 613 C.L TEMP (F) : 546 NFECTS <78 76 77 78 79 80 81 02 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o DENTNG SP 0 DENTNG TS 18 2 20 PTTTNG 0 00 SSGA SP o 00 SSGA TS 0 0 SCC TS 1 2 3 0 SCC UB 0 FRET (PRO 4 0 FRET (AVB) 0 FRET (LP) 17 17 HC FAinE o ERRCORR 0 OTHR 8 1 9 TOTPLUGED 0 0 0 0 0 0 0 8 0 0 0 0 0 0 1 20 0 19 1 49 TOTS.EEVED 0 T. L OUTAGE O UTUTY CONTACT: R.Comby M MA41ER 14f 22 88-78 ( l A-56 l l 1 l l l

_ _ _ . . _ . ~ _ _ _ _ . _ . . _ _ _ _ . . _ . . _ _ . _ _ . . . + Appendix A UTILITY : EF TOTALTUBES : 9,990 PLANT : CRUAS 2 TUBE MATERIAL : 1400 TT PLUGOED: 10 SG MODB.  : FRAM 51B EFPY  : 6,3 H. L TEMP (F) : 613 C.L. TEMP (F) : 547 CEPECTS <78 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o OENfNGr 0 DENTNGTS .O PtTTING 0 OD SAGA SP 0 CD SAGA TS 0 4 4 0 8CC TS DSCCt2 0 FRET (PREH) 0 FRET (AVB) 0 FRET (LP) 2 2 HC FATGJE O Mim 0 2 2 4 N. TUTPU_ N 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 4 4 0 0 10 TOTS.EEMD 0 o T.L OUTAGE UTUTY CONTACT: R. Comby PKPEMAMER; 1 49 22 86-78 A-57

 . - _ . - . - - . . - - . -             -    .      . - . . - - - _ . _ - . ~                                                            . ~ . . _ - ~ . . - - . . _ - - - . . , .

1 l l AppendixA UTLITY : EF TOTAL TUBES : 9,990 PLANT : CRUAS 3 TUBE MATERIAL : 1-600 TT PLUGGED' 10 SGEDEL  : FRAM 518 EFPY  : 6,8 H. L TEMP (F) : 613 C.L TEMP (F) : 547 GIFETS <76 76 77 78 79 to 81 82 at 84 85 86 87 as 49 90 91 92 93 TOTAL WASTAGE O CENTNG SP 0 l OENTNGTS 0 PffTING 0 O 00 SSGA SP OD SSGA TS 0 0 SCC TS 0 DSCCLB 0 l FRETPSEM 0 I 0 I FRET (AVB) FRET LM 0 HC FATIGLE o ERRCORR 0 ODER 1 3 4 2 10 TOTFLLN 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 3 4 2 0 10 TOT M 0 T. L. OUTAGE O UTLITY CONTACT: R.Comby i PRDE M.MIEFL 149228878 1 i l l l A-58

o . AppendixA UTH.lTY : EEF TOTALTUBES : 9,990 PLANT : CRUAS 4 TUBE MATERIAL : 1600 TT RUGGED: 33 SGMCOEL  : FRAM-stb EFPY  : 6.2 H. L. TEMP (F) : 613 C1. TEMP (F) : 547 CERL75 <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o DENTNGF 0 l DENTNG TS 0 PffTNG 0 00 SAGA SP 0 00 SAGA TS 0 0 SCC TS 0 DSCCLB 0 FRET (PfGO O FRET (AVB) o AU RM 1 1 2 l HC FATIGUE o ERRCORR 0 ODER 3 4 3 1e 3 31 TOTPLUnnm 0 0 0 0 0 0 0 0 3 0 0 0 4 0 4 0 18 1 3 33 TOT!LEEVED o T. L. OUTAGE O l l i UTLITYCONTACT: R. Comtw l FMNE M ass:R. 149228678 A-59

AppendixA UTILITY : R.0FOA POWERCORP. TOTAL TUBES : 31,062 H. ANT : CRYSTAL RVER 3 TUBE MATERIAL : l600 Pt i N: 182 SGh00EL :OTSG EFPY  : 10.1 H. L TEMP (F) : 803 C.L TEMP (F) : 554 CEN CTS 478 76 77 78 79 80 81 82 83 84 85 88 87 88 89 90 91 92 93 TOTAL O WASTAGE 0 DENTNGSP DENTNGTS 0 PfTTING 0 00 SAGA SP 0 ' 0 00 SAGA TS 0 0 SCC TS 0 SCC UB 0 FRET C 0 0 FRET (AVB) 0 ( l ma m o HC FATIGUE 2 2 ERACOM 0 04ER 3 3 8 17 1 1 3 1 31 92 160 TOT pt i rinsn 3 3 0 8 17 1 1 0 0 0 0 0 3 0 1 33 0 92 0 182 i TOTSLEEVED 0 T L OUTAGE 0 f UTIUTY CONTACT: Rody Thompson ROEp amsst (904) 5434 548 A-60

. . l l AppendixA UTS.lTY : AMERCAN ELECTHC PCMER TOTAL TUBES : 13,552 PLANT : D. C. COOK 1 TUBE MATERIAL : 1600 FLUGGED: 952 SGICOEL  : W 51 EFPY  : 12.4 H. L TEMP (F) : 599 CL TEMd (F) : 536 DEFETS <76 78 77 74 78 80 41 42 83 to SS 46 47 88 89 90 91 92 03 TOTAL WASTAGE 1 0 14 10 20 54 DENTNG y 0 DENTNG15 0 PfTTNG 0 00 StiGA SP 1 2 45 48 CO SAGA TS 6 23 255 131 104 284 803 0 SCC TS 4 133 51 188 0 SCD UB 3 1 4 FET(54EH) 0 FRET (AVB) 5 4 1 6 15 FRET (LP) 0 HC FATIGUE o N 1 1 01).ER 1 20 20 3 'A 48 RIDED 1 0 0 0 0 70 0 20 18 0 28 0 269 0 281 170 0 354 0 1181 p t_m f2001 (2091 TOT PLUGGED 952 l TOT SLEENED 1840" 1840 T L OUTAGE l 0 oo.e - 4 ,ood w UTLITY CONTACT: John Jensen with sordmel plugs. RONE MA43ER 614 223 1975

                                                                         " 209 previousily plugged tubes were sleeved and retumed to service.

A-61

Appendix A UTLITY : AMERCAN ELECTRIC POWER TOTAL TUBES : 13,552 PLANT : D. C. COOK 2 (ORIGINAL S. Q.) TUBE MATERIAL : 1600 PLUGGED: 951 SGMCOEL  : W 51 EFPY  : 6.6 H. L TEMP (F) : 606 C.L TEMP (F) : 541 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL NFECTS 476 76 77 3 1 1 5 WASTAGE 0 DENTNG SP 0 DENTNG TS R 0 PITTNG 16 20 34 E 70 00 SSGA SP 3 68 125 129 133 P 458 00 SAGA TS 19 L 19 O GCC TS 3 5 6 A 14 O SCC LE C 0 FRET A *, E 4 FRET (AVD) 3 1 0 0 FRET RP) 0 HC FATIGLK 2 1 3 ERRCORR 6 14 22 328 4 1 2 378 ODfR 1 0 6 17 30 9 402 147 151 188 0 0 0 0 0 0 951 TOT PLUGED 0 0 1 0 0 TOT SLEEMD o T.L OUTAGE UTLITYCONTACT: John Jensen PKPE MMBER 614 223 1975 A-62

e . Appendix A UTILITY : AMERCAN EM POMR TOTALTUBES : 14,368 PLANT . D.C.CDOK2(REPLACEMENTS.G.) TUBE MATERIAL : 1690 TT FtuGam. O SGh00EL  : W-54F 1 EFPY  : 3.3 H. L TEMP (F) : 606 C.L TEMP (F) : 541 [EFECTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 81 92 93 TOTAL WASTAGE o DENTNG SP 0 DENTNG TS 0 PfTTNG I ( , 0 00 SAGA SP 0 OD SAGA TS 0 0 SCC TS 0 0SG:UB C FRET (PREH) 0 FRET (AVB) 0 FRET (LP) 0 HC FATGK 0 ERACORR 0 OMR- 0 TOTPLUGGEDI O 0 0 0 0 0 . 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TOTM/ED 0 T.L OUTAGE O l UTUTY CONTACT: John Jensen F+0NE P&a4ER 614-223-1975 l 1 [. A-63

 . . . . _. . . _ . _    . . . . _ ,      _ _ . ~ . . _ . _ _ . _ . _ _ . _ _ _ . . _ . _ _ _ . _ .                                                          .

Appendix A UTLITY . EDF TOTALTUBES : 10,083 PLANT : DAMPIERRE 1 (ORIGINAL S.G.) TUBEMATERIAL : 1600 MA 1 SGM00EL  : FF AM-51M l PLUGGED: 714 EFPY  : 6.7 H. L TEMP (F) : 613 C.L TEMP (F) : 546 CEFENS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL O WASTAGE 0 [MENTNG SP R 0 DENTNG TS E o PfTTNG P 0 00 S/lGA SP L 0 OD S/lGA TS O SCC TS 22 89 63 67 93 A 314 DSCC W 90 172 85 C 347 E O FRET (PRD4 FRET (AVB) 2 0 2 WG LM 2 1 3 HC FATIGW 0 ERRCORR 0 OMER 14 1 12 14 7 as TOTPLL N O O 0 14 0 0 -0 0 2 23 191 239 143 102 0 0 0 0 0 714 TOTEEEVED 0 T.L OUTAGE 1 1 1 3 UTLITY CONTACT: R. Comby PHEN!MAeER 149228678 i A-64

Appendix A UTLITY , EN TOTAL TUBES : 10,083 PLANT : DAMPIERRE 1 (REPLACEMENT S.G.) TUBE MATERIAL : l-890 TT PLUGGED' 0 SGMODEL  : FRAM 51B EFPY  : 2.5 H. L TEMP (F) : 613 i C.L TEMP (F) : 546 DEFECTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE 0 DENTNGSP 0 DENTNGTS 0 PffTNG 0 OD ShGA SP 0 OD SAGA TS 0 0 SCC TS 0 0 SCC UB 0 FRET (PREH) 0 FRET (AVB) 0 FRET (LP) 0 HC FATGK 0 ERR m 0 OM!R 0 TOTPLUGCMID 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TOTEEEVED 0 T. L. OUTAGE O LTTLITY CONTACT: R.Comby 1 e MMASR 1 49 22-86 78 4 s A-65

                                                                                                                                                                 .                 --g Appendix A TOTALTUBES : 10,083 UTLITY EF PLANT : DAMPIERRE 2                      TUBE MATERIAL : l600 MA PLUGGED 426                              SGMODEL                                   : FRAM 51M EFPY      s.7                            H. L. TEMP (F)

• 613 C.L TEMP (F) : 546 79 so s1 82 83 84 e5 86 87 ss 89 90 91 02 93 TOTAL DERE:TS <76 76 77 7s O

WASTAGE 0 DENTNGSP 0 DENTNG15 0 P!TTNG 1 1 00 SAGA SP 23 1 24 00 SnGA TS 2 1 14 7 30 30 13 42 15 19 182 D SCC TS 180 6 186 DSCCt.B o FRET 9"O?, 1 7 2 3 13 FRET (AVB) O FRET (LP) O HO FATIGLE 0 ERRCORR 11 1 1 7 20 0964 ., 0 0 0 0 11 0 0 0 2 2 104 7 32 0 39 20 65 24 30 42s TOTPLLrXED i O TOT N 1 1 T.L OUTAGE LTitJTY CONTACT: R.Comtw PKPE M M IE7L 1 49-22 s6-7s

l l

l A-66

  .. . .. ..           . _. _ . - - _              m.   - - . . . - - ~ . .- . - - . . . . - . . - -                  - - - - - - - -             -.       .- .~ -- -..- - -- --

i I l l l Appendix A l UTILITY . EE TOTALTUBES : 10,063 PLANT

• CMMPIERRE3 TUBEMATERIAL : l 600 MA PWGGED' 869 SGMCOEL  : FRAM-51M l

EFPY

• 9.2 H. L TEMP (F) : 613 l

C1. TEMP (F) : 546 CEFECTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE 0 DENTNG SP 0 DENTNGTS 88 88 PITTNG 0 OD SAGA SP 14 28 42 00 SAGA TS 3 1 18 22 O SCC TS 12 15 7 93 38 36 24 44 42 311 0 9CC W 1 163 83 247 FRET (PFEH) 0 , FRET (AVB) 1 1 4 2 7 15 I FAET(LP) 2 2 1 2 2 6 15 HC FATGJE o ERROJRR 2 2 OMiR 7 1 2 2 1 37 65 12 127 TOTRUGCED 0 0 0 0 0 7 0 0 0 15 19 0 9 98 43 131 231 209 107 869 TOTELIEVED 0 T. (.. OUTAGE 1 1 UTLITY CONTACT: R.Comtv PHJEMA8ER; 1 40-22-86-78 4 4 A-67

0 9 Appendix A UTLITY : EF TOTALTUBES : 10,083 PLANT DAMPIERRE 4 TUBE MATERIAL : l 600 MA PLUGGED

• 402 SGM00EL  : FRAM-51M EFPY . 8.7 H. L TEMP (F) : 613 C.L TEMP (F) : 546 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL (INETS <76 78 77 78 79 o

WASTAGE 0 , DENTNGSP 10 7 17 DENYNG15 0 PffTNG O 00 SAGA SP 13 37 50 00 S/lGA TS 30 3 1 1 4 39 D SCC TS 90 88 178 DSCCtB 0 FRET C 0 1 4 3 8 FRET (AVB) 1 4 5 FRET (LP) O HC FATIGLE 0

    -imamA tr 3                  1       63        22    5   105 O&ER                                     10                   1 0    0    0 121   91       0      0    4    1  75     0  51   49   402 TOT RLnW>        0    0     0    0    0  to 0     1 TUT R.EEVED 1

1 T. L. OUTAGE (JTLITY CONTACT: R. Comtw PKN!P&ASER. 1 49 22-86-78 A-68

3 . l 1 Appendix A UTILITY : ONTAACHYDRO TOTAL TUBES : 18,652 s PLANT : DARUNGTON1 TUBE MATERIAL : 1800 PLUGGED- 0 SGMODEL  : B&W CANADA EFPY . 0.9 H.L TEMP (F) : 588 CL TEMP (F) : 512 OEFElTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL I WASTAGE O DemNG SP 0 DENTING TS 0 P!TTING 0 00 SAGA SP 0

00 SAGA TS 0

D SCC TS 0 0900LB 0

FRET (PREH) 0 j FRET (AVB) 0 FRET fLP) 0 HC FATIGUE o 4

;       EF,,wnn                                                                                                                   0 OMR                                                                                                                       0 TOTPti m        0     0    0   0     0   0    0           0    0     0   0   0     0   0   0       0     0     0   0      0

TOTSLEEVED 0 T. L. OUTAGE o

. l 4

UTIUTY CONTACT: C. C. Maruska

, PHOMEM M (418) 592-5668 i I i i l. 4 4 1 1 2

 .                                                                                                                           A-69 1

4 I

Appendix A UTluTY ' ONTAFIOFWDFO TOTALRJBES : 18,652 , l l PLANT . DARUNGTON2 TUBE MATERIAL : l-800 ! R.UGGED 0 SG MODEL  : B&W CANADA l EFPY . 1.2 H. L TEMP (F) : 588 C.L TEMP (F) : 512 GifETS <76 76 77 78 79 80 81 82 83 84 85 85 87 88 89 90 91 92 93 TOTAL WASTAGE O DENTNG SP 0 DEMMNGTS 0 PfTTNG 0 OD S4GA SP 0 l OD SnGA TS 0 l 0 SCC TS 0 0 SCC UB 0 FRET (PREH) 0 FRET (AVB) 0 FRET (LP) O HC FATIGUE O ERRCORA 0 ODER 0 TOT R.UGGED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TOTSLEEVED 0 T. L OUTAGE o UTILITY CONTACT: C. C. Maruska PmNENLMIER (416) 5926668 l l l A-70

     .    . . _         .. ..         . . - - -         . . _ .- - . .               - . . -        ..      .. - - .- ~          .. ..     -.-- . __.
  , 4

^ Appendix A UTILITY : ONTARC M TOTALTUBES : 18,652 PLANT , DARLNGTON3 TUBE MATERIAL : 1800 PLUGGED

• 0 SGMODEL  : B&W CANADA EFPY  : 0.8 H. L TEMP (F) : 588 C.L. TEMP (F) : 512 DERCIS <76 76 77 78 79 80 81 82 83 84 85 86 87 68 89 90 91 92 93 TOTAL WASTAGE o DENnNG SP 0 DENTNGTS 0 PfTTNG 0 00 SAGA SP o OD S/lGA TS 0

                                                                                                                                                        ]

D SCC TS 0 l D SCC f.B 0 l FRET (PREH) 0 FRET (AVB) 0 FRET (LP) 0 HC FATnJE o d ERRCORR 0 l ODER 0 ) TOTPLUGGED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TOTS EEVED 0 T. L. OUTAGE O UTLITY CONTACT: C. C. Maruska PHC NE M.84ER (416) 592-5668 s a 'Y A-71

 .=_ .       .- . .-           ..        ..         . . .. - . .             =. . . .- .

Appendix A tmLITY ' CNTARCWDRO TOTALTUBES : 18,652 PLANT DAFLINGTON 4 TUBE MATERIAL : 1-800 Pi t rnrn 1 SG MODEL  : B&W CANADA EFPY  : 0.4 H. L TEMP (F) : 588 C.L TEMP (F) : 512 i CEFECTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL O WASTAGE O DENTNG SP 0 DENTNGTB 0 i PITTNG 00 S4GA SP 0 00 SH1A TS 0 D SCCTS 0 ' D SCC UB 0 FRET (PREH) 0 FRET (AVB) 0 FRET (LP) 0 m FATIGUE O ERACOFm 0 1 1 ODER TOTPLUGGED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 TOTSLEEVED 0 7.L. OUTAGE o i UTILIP/ CONTACT: C. C. Manska PK)PEPAA4BER (416) 592 6668 l l A-72

_ ._ _ _ .~ .. .. _ . . _ . . . _ . . . _ . . _. . . . . ~ _ . . _ . . . . Appendix A UTILITY : TCdDOEDISON TOTAL TUBES : 30,914 PLANT . DAVEBESSE TUBE MATERIAL : 1400 S PLUGGED 438 S3MCDEL :OTSG EFPY , 8.5 H.L TEMP (F) : 608 C.L TEMP (F) : 555 CDETS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL l WASTAGE o DENTNGSP 0 DENTNG TS 0 PfTTNG 10 10 ; 00 S/lGA SP 0 i i' 00 SAGA TS 2 2 O SCC TS 0 l DSCCLE O FRET (PREH) 0 FRET (AVB) 0 FRET (LP) 0 HC FAT 10UE O ERRCOfm O CmER 18 2 7 1 19 2 10 3 364 426 TOTPLUGGED 0 0 18 0 0 0 2 7 0 1 0 19 0 2 0 12 13 0 364 438 TOTSLEEVED 212 212 T. L OUTAGE 1 1 UTLITY CONTACT: Gene Matranos PKNEPdAER 419 321 8369 A-73

 . _ __.._ _ ._._. .. ..                _ . _ .                                 . . _ _ .      .m_=_.m.      .m    .m...    . _ _ . _ _ . _ _ _ - . _ . . . _ _ _ _ _ . _ .

Appendix A UTIUTY PACIFIC GAS & ELECTRC TOTALTUBES : 13,552 PLANT . DIABLOCANYON1 TLBEMATERIAL : b600 MA RImsn 43 SGMODEL  : W 51 EFPY  : 8.9 H. L TEMP (F) : 603 C.L TEMP (F) . 545 76 77 78 79 so 81 82 83 e4 85 to 87 88 89 90 91 92 93 TOTAL CERE15 <76 o WASTAGE 0 OEN1?G SP o DENTNGTS o PffTING o 00 SAGA SP o 00 SnGA TS o O SCC TS 1 4 17 22 DSCCLE o RET M; T, 2 1 12 15 FRET (AVB) o FRET (LP) o W FATIGUE o h 1 6 7 ODEFt pi_irrun o o o o o o o o o o 1 0 0 1 12 1 0 29 o 44 OfLLN I11 f11 TOTPU rwan 43 o TOTSLEEVED o T. L OUTAGE l UTILITY COPRACT: David Hampshire l i ., MOEPAMIER 415 972-6568 i ( l l l l l A-74 l l 1

       . _ . _ _ . . .._._ . _ _ _ . . . _ _ . _ _ _ _ . _ _ . . -                         ..._._..._.-~_-..__...m.m____.                                   __.__.m.__
    .1     4 AppendixA i

i W f J UTILITY : PACIFIC ELECTRIC & GAS TOTAL TUBES : 13,552 1 . PLANT ' DIABLOCANYON2 TUBE MATERIAL : 1600 MA 1 ? ! PLUGGED 78 SG MODG.  : W 51 EFPY - 8.2 H. L TEMP (F) : 603 j C.L TEMP (F) . : 545 } l~ DEFECT 8 <76 78 77 78 79 80 81 82 83 84 85 88 87 88 89 90 91 92 93 TOTAL WASTAGE o DENTNG p o i l DENTDG T8 o 4 PtTTNG o l 00 SAGA SP 4 4 j 00 SAGA TS 1 1 1 09CC TS 25 25 l D SCC UB 7 10 17 MIET(PREM o . FRET (AVB) 1 1 i FRET (LP) o

HC FATIGUE o

} EMN o

OMFI 2 24 1 21 de j minnsn e o o o o o o o o o o o 2 31 o o 1 o e2 es I t.8@WGED fiel til f201 i

j 10TPLUG WiD 76 l 1 l i i 8 l TOTSLEEVED o T.L. OUTAGE o I l i UTILITY CONTACT: David HampsNro } PK)PEMAEER 415 972 6568 A-75

  . . _ _ _ _ - _ . . _ - . ~ . - . . _ _ . . . - - _ . . . -                  - - . - - - . . . . - .                                                                                                                                                               . _ . _ . . _ . _ _ _ , -                                ._

i l AppendixA UTUTY

• GES TOTAL TUBES : 6520 PLANT : DOEL1 TUBE MATERIAL : l-600 PWGGED: 291 SGhKEEL  : ACE-44 EFPY  : 18.4 H. L TEMP (F) : 598 C.L. TEMP (F) : 544 CI R CTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL

                      ,  WASTAGE                                                                                                                                                                                                                                                                                            0 i

DENTNG SP 0 DENTNG TS 0 PfTTNG 0 OD SAGA SP O , OD SAGA TS 6 2 7 0 SCC TS 0 DSCCLB 0 FRET (PREH) 0 FRET (AVB) 32 19 51 FRET (LP) 1 8 13 3 2 27 HC FAT 1GLE O EMCORR 1 1 OMR  ? 1 1 11 2 1 4 5 177 205 TOTPLUGED 3 2 9 13 0 11 0 0 0 5 1 0 0 2 32l 4 24 6 170 291 TOT E.EEMD 0 T. L. OUTAGE 3 3 UTUTYCONTACT: Paul Hemalsteen PHOMEMASER (02) 3820551 l l A-76 i f

m.. _ . _ . . 2 . . _ . . _ _ - . . . - . _ _ . _ _ - . _ _ _ _ . _ _ _ _ _ _ _ _ . _ . _ . - . . . . _ _ . - _ _ . , . _ . . . . . _ . . _ . . _ . 8 4 a AppendixA UTLITY : BEB TOTAL TUBEB : 8520 PLANT : DOEL2 TUBE MATERIAL : 1400 l pien: 700 SGMODEL  : ACE 44 EFPt  : 88 H. L TEMP (F) : 688 CL TEMP (F) : 544 DEFEC15 478 78 77 78 78 80 81 82 83 84 85 88 87 88 88 80 81 82 83 TOTAL WASTAGE o DENTNG F 0 DENTNGTS 0 MTTNG 0 OD SAGA SP 1 1 3 4 4 13 OD SAGA TS 8 3 28 37 D SOC TS 1 2 26 34 8 7 10 18 '43 149 40 67 6 10 407 0800 UB 1 107 108 NN .d FRET (AVB) 8 2 10 FRETLR 0 HC FATIGUE o ERRO0fm 0 OMR 3 3 7) 1 1 2 22 0 1 8 1 125 TOTPLLAXED 4 0 2 28 112 8 7 10 18 43 280 48 22 0 18 80 13 13 37 700

• tedia.EEVE 133 " 54 '18 7 *
• MBSREEVE 10 81 818 MCNEL PLATE 33 346 378 T. L OUTAGE _.

1 1 1 3 UTIUTY CONTACT: Paul Hemeisteen

• 176 of the 700 plugs somoved for repair FHOMEp ams3t (02) 3820651 ** 188 of the 187 alooved tubes anatmdy plugged

. # 10 of the kiss sleeves sutieequefigy removed A-77

AppendixA UTluTY : BES TOTALTUBES : 10,083 PLANT . DOEL3 TUBE MATERIAL : l600 P i rusn. 555 SGMODEL  : FRAM-51M EFPY  : 8.8 H. L TEMP (F) . 617 C.L TEMP (F) : 547 DEFECTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 TOTAL WASTAGE O DENTNG SP 0 DENTNGTS 0 PITTNG 0 OD SAGA SP 35 17 52 OD S/lGA TS 0 ID SCCTS S 3 1 2 51 16 16 28 42 35 199 ID SCC UB 0 FRET &REH) 0 FRET (AVB) 14 14 FRET (LP) 0 HC FATIGW 0 ERRAX)RR 0 OW 23 1 266* 290 TOTR.UGGED 0 0 0 0 . i 0 23 5 4 1 2 317l 16 30 28 77 52 555 l TOTEEEVED 55 55 T. L OUTAGE 3 1 4 UTIUTY CONTACT: Poul Homeleteen

• 264 preventive row 1 pluggmg PHOEPAMER (02) 3820551 l

l l l A-78 l

    .  . - . -      , - . . - .-.-.- _ ._ -.-._.-._.                                            - . . - . .               . _ . - . . - . - . . . . . . . ~ - . . . - . - -

Appendix A UTILITY : GEB TOTALTUBES : 10,083 PLANT : DOEL 3 (ORIGIONAL S.G.) TUBE MATERIAL : 1600 PLUGGED: 555 SGunnA  : FRAM 51M EFPY  : 8,8 H. L TEMP (F) : 617 C.L TEMP (F) : 547 WFECTS <76 78 77 78 79 80 81 82 83 84 85 86 87 88 09 90 91 92 93 TOTAL WASTAGE O MNTNG SP 0 DENTNG TS R 0 i l PffT1NG E O 00 S/lGA SP 35 17 P 52 OD 8/lGA TS L 0 C SCC TS 5 3 1 2 51 16 16 28 42 35 A 199 DSCCLB C 0 FRET (PREH) E O FRET (AVB) 14 D 14 FRETG.P) 0 HC FATIGUE o EiWwwnn 0 ODER 23 1 266* 290 $ TOT PLUGGED 0 0 0 0 0 0 0 23 5 4 1 2 317l 16 30 28 77 52 555 TOTEJEVED II 55 55 MCKEL PLATE 11 11 T.L OUTAGE 3 1 4 l UT8JTY CONTACT: Paul Hemaisteen

• 264 preventive row 1 plug 9ng i  !

PHJEMAEER. (02) 3820551 1 I i A-79

i Appendix A UTUTY EEES TOTAL TUBES : 10,083 PLANT : DOEL 3 (REPLACEMENT S.G.) TUBE MATERIAL : 1-600 PLUGGED 0 SG MODEL  : FRAM 51M EFPY , 1.0 H. L TEMP (F) : 617 C.L TEMP (F) : 547

                                                                  <78     78       77    78       79  80  81    82  83   84   85  86    87  88  89  90  91  92    93 TOTAL DEFECTS o

WASTAGE O DENTNG SP R 0 DENTNGTS E O PrrTNG P O 00 SAGA SP L 0 OD SMGA TS A 0 D SCC TS C 0 D SCC LB E O FRET PREH) D 0 FRET (AV9) 0 FRET (LP) HC FATIGlK 0 ERRCORR 0 ORER 0 TOT PLUGGED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TOTS.EEVED 0 T. L. OUTAGE O LTTUTY CONTACT: Paul Hemaisteen PKNE MAEER. (02) 3820551 I l A-80 l l

Appendix A e UTLITY : EIES TOTALTUBES : 14,592 PLANT : DOE.4 TUBE MATERIAL : 1600 i i PLLGGED: 992 SGh00EL :ACEE EFPY  : 7.5 K LiEMP(F) : 616 C.L TEMP (F) : 560 , l CEFEUS <76 76 77 78 79 80 81 42 83 8, 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o i' DENTN3 F 0 DENTNG18 0 , , PITTING 0 i 00 SAGA 6P 3 50 24 77 00 SAGA TS 43 2 45 i O SCCTS 3 17 5 25 i O800ts 0 2 2 1 I FRET (LP) 0 l C FATOLE o EMCORR 2 2 i . CHR 19 8 142 672 841 j 10TR.LG3E) 0 0 0 0 0 0 0 0 0 19 0 0 0 0 0 6 77 214 676 992 TOTS.EEVED 1736 1736 T.LOlfrAGE 1 1 4 f UTUTYCONTACT: Paul Hemaisteen i i ROEMAGER (02) 3820551 J 1 s / [ A-81

l 1 1 AppendixA UTLITY KEFNGMFTWERKE TOTALTUBES 16,472 UPPEGS GmbH PLANT . EMSt#O TUBE MATERIAL : 1800

                                                                                                                         )

PLUGGED. O SOEDEL  : KWU 54SK , EFPY  : 5.1 H. L TEMP (F) : 616 C.L TEMP (F) 557 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL CEFETS <76 o WMiTAGE 0 DENTNG SP 0 DENTNG15 ' 0 PfTTING 0 00 SMGA SP 0 00 SAGA TS 0 D SCC TS 0 D SCC 12 0 FRET (PREH) 0 FRET (AVB) O FRET (LP) HC FATIGlK 0 0 ERACORR OM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TOT PLUGED TOT 3.EEVED 0 T. L. OUTAGE 0 UTLITY CONTACT: S. Oder / R. Bouseke PHONEMAEER 49 9131 18 2077 / 49-9131 18-9410 l l

                                                                                                                         )

A-82 i

i Appendix A f a UTIUTY : AIAIAMAPOWERCOMPANY TOTAL TUBES : 10,164 a PLANT : FARLEY1 TUBE MATERIAL : l-600 MA 4 PLUGGED: 358 SG N  : W 51 l I I EFPY :12.3 H. L TEMP (F) : 607 ' i O.L TEMP (F) : 543 4 1 DER CTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL , 1 LAS(AGE o DEPe7NG 0* O DENTNGTS 0

                                                                                                                                                                                )

PfTTING 0 l 00 SAGA SP 3 y 2 95 22 122 00 SSGA TS 1 3 to 22 42' 9 93 l IO SCC T9 1 75 2 78 ID SCC UB 1 4 277 " 282 FRET (PREH) 0 ! FRET (AVB) 9 9 FRET (LP) 0 HC FATIGUE o ERACORR 0 OMiR 0 RUG 3!D 0 0 0 0 1 4 277 0 0 9 1 6 0 17 24 0 212 33 0 SO4 LDFLUGWiD (2261 f2261 TUTPLUGGED , ;. 358 TOTSLEEVED 136 136 T. L. OUTAGE 1 1 UTRJTY CONTACT: Forrest Huncey

• ODSCC atMwe tubeeheet (full depth exansson)

(some pating -='ed with these indicatione) PHONE ftMIER: 205-870-8998 l

                                                                                                       " 274 Row 1 tubes preventively pluggert A-83

 . . . . - - . - . . . . . - - . . . . . . - - . . . _ - - - . - . - - . .                                           . . . . . _ . - - . .            .   .       - . ~ . . - . - . - .                          - ~ - - -

AppendixA i l UTILITY : ALABAMA POWER COMPANY TOTAL TUBES : 10,164 l l PLANT ' FARLEY2 TUBE MATERIAL : l 600 MA PLUGGED . 710 SG MODEL  : W Si EFPY  : 10.2 H. L TEMP (F) : 607 C.L TEMP (F) : 643 DENCTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o DEPm NG y 0 DEPmNGTS 'O Pf7 TING 0 00 SAGA SP 1 2 28 76 10 243 19 7 386 l 00 SnGA 15 1 1 ID SCC TS 40 30 16 310 22 13 431 IDSCCtB '280 280 FRET (PfGf) , O FRET (AVB) 6 2 2 1 11 FTET(LP) 3 5 I HC FATIGUE , o tiree w m 0 ODfR 1 1 6 1 4 12 ptwam 0 0 0 0 1 0 1 283 0 3 14 70 100 0 27 272 0 41 24 1125 (AFLUGED (2801 f1351 f4151 TUTPLUGGED 7to TOTSLEEVED 29 246 276 T. L. OUTAGE 1 1 UTILTTYCONTACT: Forrest Hundlov

• Row 1 proven 8vely plugged PHONE NLAEER 205 870-6908 1

i I l l l I l A-84

                      . . . . . - . . ~ - . . .          . . - - ~ . . - . . ~ . . . . .. _                   _. - . -            - . - . _ ~ . . - . - ~ . . . . . ~ . - .

i

• AppendixA UTILITY : EF TOTALTUBES : 10.164 PLANT : FESSONEN1 TUBE MATERIAL : 1600 MA PLUGGED 508 SGMODEL  : FRAM 51 A EFPY  : 10.3 H. L TEMP (F) : 611 C.L TEMP (8) : 543 WFEC15 <76 76 77 78 79 to 81 82 83 84 86 86 87 88 09 90 91 92 93 TOTAL WASTAGE o DENTNG SP 0 DENTNG15 0 PrTTING 0 00 S/ IGA SP 20 8 28 00 SAGA TS 1 3 1 6 U SCC TS 26 2 45 1 9 1 5 2 91 O SCC L.B 2 16 89 171 2 3 3 10 6 301 FRET (PREH) 0 FRET (AVB) 1 6 1 5 1 1 1 16 AU RM 3 3 HC FATIQUE o ERRCORR O ODER- 6 1 12 11 3 ~5 7 3 2 12 2 64 TOTPLUGED 6 0 0 0 0 0 26 3 60 33 102 202 0 9 13 9 29 0 16 508 TOT E.EEMD 10* 10 T.L OUTAGE o UTLITY CONTACT: R.Comtv
• Subsequenty PluGO**d PHONE M.84ER: 1 49-22 86 78 4

l 1 i A-85

1 Appendix A l l UTLITY EIF TOTALTUBES : 10,164 PLANT : FESSEMEN 2 TUBE MATERIAL : 1-600 MA SGMODEL  : FRAM-51 A l PLUGGED. 104 EFPY , 10.7 H. L TEMP (F) : 611 C.L TEMP (F) : 543 i Ca H CTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o 0 DENTNG SP DENTNG TS 0 PfTTNG 0 1 1 OD SAGA SP l 00 SAGA TS 31 27 7 65 O SCC TS 6 6 O SCC UB 0 FRET (PREH) 0 FRET (AVB) 1 4 1 6 1 1 FRET (LP) HC FATGK 0 ERRCORR

• O OMER 12 4 1 1 4 3 25 TOTPLLrracn 0 12 0 0 0 0 1 0 4 0 0 2 1 0 0 35 39 10 0 104 1075.EEMiD 0 T. L OUTAGE O UTI.ITY CONTACT: R.Comtn .

i RONEMAeER; 1 49-22 86 78 A-86  ! I 1 _.1

. . l l l Appendix A l l 1 i UTILITY : EF TOTAL TUBES : 21,'68J PLANT RAMANVILLE 1 TUBE MATERIAL : 1600 TT j l PLUGGED: 58 SGMODEL  : FRAM-68/19 EFPY  : 6.2 H. L TEMP (F) : 616 C.L TEMP (F) : 559 CEFECTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o CMiNTNG SP 0 DENTNG15 0 PfTTING 0 00 S/lGA SP 0 00 SAGA TS 0 0 SCC TS 4 4 DSCCt2 0 PET (PREH) 0 FRET (AVB) 0 FRET (LP) o Mc FATIGUE o ERRCORR 0 CmtiR 11 7 2 3 29 52 l TUTPLLN 0 0 0 0 0 0 0 0 0 11 0 0 7 2 0 3 29 4 0 56 j TOT 3.EEVED 0 T. L. OUTAGE O (frLITY CONTACT: R. Comtw PH0fE K84ER. ,149228678 l l A-87

                                                                                                                        - - . . _ . _ - ~ _ . . _ . . . _ - - . . ..

AppendixA UTLITY : EF TOTAL TUBES : 21,368 ~ PLANT FLAMANVILLE 2 TUBE MATEFuAL : 1600 TT p iinnsn: 57 SGMODEL  : FRAM 68/19 EFPY  : 4.8 H. L TEMP (F) : 616 C.L TEMP (F) : 559 GiRCTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL o WASTAGE 0 DENTNGSP 5 5 DENTNGTS 0 PITTNG 0 00 SnGA SP OD SAGA TS 0 D SCC TS 0 D SCC LB 0 FRET (PREH) 0 0 FRET (AVB) FRET RP) 2 1 3 HC FATIGtK 0 ERRCORR 0 ODER 18 25 6 49 TOTPLLN 0 0 0 0 0 0 0 0 0 0 0 0 0 20 5 0 26 7 0 57 1UTILEEVED 0 T.L OUTAGE o UTLITYCONTACT; R Comtw PHOMINAGER 149228678 A-88

Appendix A i UTLITY : Om PLELC PCMER DISTRCT TOTALTUBES : 10,010 { 1 PLANT : FORTCAIJ40LN TUBE MATERIAL : 1400 MA i PLUGGED: 110 SGM00EL  : { EFPY  : 13.5 H. L. TEMP (F) : 593

C.L TEMP (F)

543

! CEFECTS <76 76 77 78 79 80 81 82 83 84 86 86 87 88 89 90 91 92 93 TOTAL

. WASTAGE!                                                  1                                               1 1

CENTNG SP 9 28 37 DENTNG TS 0 PfTTNG 0 00 S/lGA SP 8 2 10 00 SAGA TS 0 D SCC TS 0 0SCCL2 0 FRETIPREH) 0 FRET (AVB) 0 FRET (LP) 0 HC FATIGUE o h 1 1 1 3 ODER 49 3 4 3 $9 TOTR Lwrun de 0 0 4 0 0 0 0 0 23 33 0 0 0 0 0 0 0 1 110 TUT!LEENED 0 T. L. OUTAGE 1 1 UTLITY CONTACT: J.M. Case PHOM!P&JimER (402) 533-6834 i i 1 l I I I i l 4 l A-89 ' l

AppendixA TOTAL TUBES : 6,776 UTILTTY : KYUSHU ELECTRC PONERCO. PLANT : GENKA11 TUBE MATERIAL : l-600 MA PLUGGED. 683 SGMODEL  : MHi 51 EFPY  : 12.4 H. L. TEMP (F) : 613 C.L. TEMP (F) : 551 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL DEFE:TS 476 76 77 78 79 80 81 o WASTAGE 0 DENTNG SP 6 DENTNGTS 0 PITTNG 105 17 38 26 17 603 00 SMGA SP 233 167 9 15 124 62 90 20 14 17 351 00 SAGA TS 0 10 SCC TS o 10SCCUB 0 FRET (rr- Gf) 0 FRET (AVB) 1 FRET (LP) 1 o HC FAT 1GUE o ERRCOFE 1 8 1 OtrER 4 2 120 142 100 91 20 0 40 0 34 963 PLUGED $ 2 0 0 0 0 233 176 0 [1081 (71 (671 11001 (2801 (Amwsn _ 683 TOTPLUGGED 147 342 384 870 805 447 169 3164 TUTSLEEVED 1 T. L. OUTAGE 1 UTLffY CONTACT: H. Takamatsu PHOPENLAMER 06 441 8921 A-90

    .. - -. . _              . . . . - . . . . - . _ -                . - ~ . . . . - - - - . . . _ .                   - -         . - . . - . . . - . .            . . . . . - . . _ . - .

t l AppendixA l f tfrILTTY : KYU!HJ ELECTRIC POWER CCNPANY TOTALTUBES : 6,764 PLANT : GEM (Al2 TUBE MATERIAL : l 600 MA PLilGGED' 1 SGMODEL  : MHI-51M EFPY  : 10.6 H. L TEMP (F) : 599 CL TEMP (F) : 551 GiFECTS 476 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 02 93 TOTAL WASTAGE o OENTNG SP O DENTNG TS 0 PfTTING 0 00 SAGA SP 0 00 SAGA TS 0 0 SCC TS 0 D SCC UB 0 FRET (PREM 0 FRET (AVB) 0 I FRET (LP) 0 HC FATIGUE o ERRCORR 0 ODER 1 1 TOTRUGGED 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 . 0 1 TOTELEEVED 0 T. L. OUTAGE o tJTUTY CONTACT: M. Takamatsu PHONEMAGER 06-441-8821 J. l

A-91 e - .. . . . - . - - - - . . - . _

                                                                                                                                            ,   e AppendixA l

UTLITY

• FOCESTEROAS&ELECTHC TOTALTUBES : 6520 PLANT : GPNA TUBE MATERIAL : l-600 MA PLUGGED. 483 SGMOCEL  : W-44 EFPY  : 17.9 H. L TEMP (F) : 601 CL TEMP (F) : 552 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL G3ETS <76 1 4 58 WASTAGE 32 19 1 1 O

DENTNG SP 0 DENTNG TS 0 PfTTNG O 00 SMGA SP 46 39 13 13 34 7 49 5 2 6 24 85 59 14 10 37 25 468 m "MGA TS 6 6

           <: TS 0

C UB 0 6 HET(PREH) 0 ERET (AVB) 1 1 FRET RP) HC FATIGUE 25 25 ERRCORR 0 i CmER 1 6 23 6 3 2 41 RJrrsn 79 58 19 24 19 35 7 53 5 3 6 24 95 86 18 16 0 37 25 599 (Hsiira n (81 f131 (4 91 f461 (116] TOT PLUGGED 483 TOTSLEEVED 5 16 77 8 69 39 101 3 502 241 207 425 266 1953 T. L. OUTAGE 1 1 1 1 1 1 1 7 UTLITY CONTACT: John Smkh FtONEMMIER (716) 724 8363 l l A-92 l l

5 v Appendix A UTLITY : NBHOMF1WERC TOTALTU8ES : 12,318 006 GENO W KEN l PLANT : GGEN TUBE MATERIAL : 1800 l PLUGGED: 12 SGMODEL :KWU EFPY  : 12.2 H.L TEMP (F) : 610 . C.L TEMP (F) : 558 1 CEFETS <78 78 77 78 79 to 81 82 83 84 85 88 87 88 89 90 91 92 93 TOTAL WASTAGE *1 1 DENTNG SP 0 p TS 0 PfTTNG 0 00 SnGA SP . _ _ . O OD SAGA TS 0 i O SCC TS 0 - D SCCIE o l FRET (PREH) 0 FRET (AVB) 0 FRET (LP) 1 4 5 10 l Ht;FATKMi o Enivu mA 0 ODER *1 0 , TOTPLUGGED o 0 0 0 0 0 1 1 0 0 0 0 1 4 0 6 0 12 TOTE.EEVED 0 T.L OUTAGE o UTLITY CONTACT: S. Odar / R. Bouseke

• Tube puted for investigation MOEMAGER: 40-9131 18-2077 / 49-9131 18-9410 i

A-93

                                                                                                                              >      e AppendixA                                                                                                                               l UTILITY EIF                                         TOTAL TUBES : 21,368 PLANT : OCLIEOil                                    TUDEMATERIAL : l-600 TT I

17 SGMODEL  : FRAM-68/19 i PLUGGED l 1 EFPY  : 2.3 H. L. TEMP (F) : 616 C.L. TEMP (F) : 559 DEFECTS <76 78 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE O DENTNG SP O DENTNG TS 0 PITTNG 0 OD S/ IGA SP O OD S/ IGA TS 0 fD SCC TS 0 10 SCC UB o AET (PREH) 0 FRET (AVB) 0 FRET (L P) O HC FATIGUE O ERACORR 0 ODER 10 4 3 17 TOTPLUGGED 0 0 0 0 0 0 0 0 0 0 0 0 0 10 0 0 0 4 3 17 TOTSLEEVED 0 T. L. OUTAGE o UTILITY CONTACT: R.Conty PHOPENL8SER 1 49 22-88-78 A-94

    . . - . .   . _ , _ _ _   ...._..____.-.m                    .             ..._.m._._..__...              _ _ _ _ . .          _ _ _ . . _ _ _ . _ . _ _ _ _ _ _ _ _ _ _ . . . . . _ - . . _ _ _ _ . _ ,

I  % < l Appendix A UTLITY . BAYEFWWEFDCAG TOTALTUBES : 16.344 l l PLANT : GRENHNELD TUBE MATERIAL : 1800 I PLUGGED. O SGMODEL  : KWU-54GS i EFPY  : 10.1 H. L TEMP (G : 618 l CL TEMP (F) : 555 GRCTS <76 76 77 78 79 to 81 82 83 84 85 e6 87 ss 89 90 91 92 93 TOTAL l WASTAGE o nENTon app o f ___ __ _ _ l DENTNG15 0 PfTTNG 0 00 SAGA SP o 00 SAGA TS 0 0 800 TS o DSCCtB 0 FRET (PREF 6 ' o FRET (AVB) , 0 FRET G.P) 0 HC FATIGUE O ERRCORR o OHR 0 TUTPLUGGED 0 0 0 0 0 0 r o o o o o o o o o o o o o TOTE.EEVED l 0 T. L. OUTAGE l 0 UTLITY OONTACT: S. Oder / R. Bouede P K N E M.A S eft 49 9131 18 2077 / 49-9131 10 9410 l l A-95 e, - - - - - - .. >n --- --g --- , ~ g,---. , . - - - ---

 .___ _ _ _ . _ _ _ _ _ _           . . . . . _ _ _ _ . _ _ _              ___.____..,_.m.           _     . _ . . . _ _ _ . .             . _ _ _ _ _ _ _ _ _ . . _ . _ _ _ _ _ _ _ _ . _ _
                                                                                                                                                                                                        >      c AppendixA UTILITY : EEF                                                 TOTAL TUBES : 10,063 PLANT : ORAVELNES1                                            TUBE MATERIAL : l 600 MA PLUGGED 878                                                   SGMODEL                : FRAM-51 M EFPY             : 8.8                                        H. L TEMP (F) : 613 C1. TEMP (F) : 546 DEF E TS              476          76   77  78  79         80     81  82    83       84         85    86    87  88           89           90          91          92    93 TOTAL 0

WASTAGE . 0 DENTNG SP 4 4 DENTNG TS PfTTNG 0 O OD SAGA SP OD SAGA TS 20 to 2 12 18 10 25 38 203 11 14 333 IDJICC TS ID SCC LAB 179 179 FRET PREH) 0 2 1 1 4 FRET (AVB) FRCT(LP) 0 HC FATKUE o EpWMX)RR 0 cmER to 2 1 2 86 36 1 138 TOTPil wacn o o o 10 0 0 2 0 1 2 193 18 10 25 38 295 68 0 16 678 i TOTSLEEVED 0 1 1 T. L. OUTAGE UTIUTY CONTACT: R. Correy PHCNE MAEER; 149228678 l l l 1 l A-96 l l

 .__.m_. _ _ . . .__            _ _ _       .m____.~...             ._ _                   . . _ _ _ _ . _ _ _ _ . . _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _ _
 ,         s Appendix A  l l

UTILITY : EEF TOTALTUBES : 10,063 PLANT : GRAVELNES 2 TUBE MATERIAL : 1400 PLUGGED: 721 SG MOCEL  : FRAM 51M EFPY  : 9.4 H.L TEMP (F) : 613 CL TEMP (F) : 546 DER CTS <76 76 /7 78 79 80 31 82 83 84 85 86 87 48 89 90 91 92 93 TOTAL WASTAGE 0 DENTNG SP 0 DENTNG TS 19 19 PfTTNG 0 00 S4GA SP O l 00 3nGA TS 50 1 51 D SCC TS 7 11 15 to 25 72 7 4 18n f I DSCCt2 179 5 2 1 id1 FRET (PREH O FRET (AVB) 2 2 1 5 5 1 12 FRET (LP) 10 6 3 1 2 22 W FATIGUE o ERRCORR 0 OHR 4 2 176 81 5 3 271 TOT PLUGGED 0 0 0 0 4 0 0 0 0 0 188 0 11 27 24 274 210 19 14 721 i TOTSLEEVED o T.L OUTAGE 1 1 ! UTLITY CONTACT: R Comby PH3E PAAWER 149228678 l A-97

                                                                                                                                                                                 ,    r Appendix A UTluTY . EEF                                                     TOTALTUBES : 10,083 1

PLANT : ORAVELNES3 TUBE MATERIAL : 1400 MA R.UGGED: 332 SG MODEL  : FRAM.51M EFPY  : 9.3 H. L TEMP (F) : 613 C1. TEMP (F) : 546 DEFELTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o O DENTNG SP 6 6 DENTINGTS PfTTNG 0 00 S/lGA SP 0 1 1 00 SAGA TS OST TS 2 4 11 1 10 8 30 14 80 0S00t2 90 4 1 95 FRET (PREH) 0 FRET (AVB) 9 24 8 3 5 8 57 FRET (LP) 4 1 16 4 4 29 ( HC FATIGUE O ERRCORA 0 OMER 8 3 11 38 4 64 TUTPLLrvsn 0 0 0 0 8 0 0 0 0 2 101 0 21 0 di 39 53 43 24 332 TOTEREVED o T.L OUTAGE 1 1 2 UTUTY CONTACT: R.Comty PKN!PAAGER 149228678 l 1 A-98 l 4

_ . - . . . _ . ._ ..._..___...._.____._._..____.m. _ _ _ _ _ - _ _ . = . _ _ _ - . _ . . _ i e Appendix A UTILITY . EN TOTALTUBES : 10,083 PLANT : ORAVELNES4 TUBE MATERIAL : 1400 MA PLUGGED: 477 SGMODEL  : FRAM 51M EFPY  : 8.9 H. L TEMP (F) : 613 1 C.L. TEMP (F) : 546 CEFECTS <76 76 77 78 79 80 81 82 83 84 85 86 87 $$ 89 90 91 92 93 TOTAL WASTAGE o DENTNG SP o l DENTNGTS 22 0 31 I PfTTNG 0 00 SAGA SP 0 OD SAGA TS 4 4 0 8CC TS is 1 4 11 18 78 127 D SCC UB 180 to 11 201 FRET (PREP 4 0 FRET (AVB) 2 1 3 FRET (LP) 2 2 3 9 16 E FAT GJE o ERACORR 0 OTbER 6 1 2 1 52 24 9 95 TOTPLUGGED 0 0 0 0 0 6 0 0 2 18 100 0 2 13 10 94 0 56 98 477 TOTELEEVED 0 j T. L. OUTAGE I i 1 1 3 1 UTLITY CONTACT: R.Comtv PHOPE PAAEER: .149228678 J J t A-99

       . . .     ... . _ - ~ . _ . . - ...-- -..-- -.... . - - - . -..                          - . . - - . ~ . . .                .
                                                                                                                                     ~ - . .         -           -     .   ~ ~ .      . . ~ _ ~ . _

l . r AppmdixA UTIUTY : EN TOTAL TUBES : 9,990 PLANT GRAVEUNES5 TUBE MATERIAL : 1600 TT pirvwn: 16 SGMODEL  : FRAM 51B EFPY . 6.6 H. L TEMP (F) : 613 CL TEMP (F) : 546 DERERS <76 76 77 78 79 80 81 82 83 e4 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o DENTNG SP 0 DENTNGTS 9 9 PfTTNG 0 00 SAGA SP 0 00 SAGA TS 0 0 SCC TS 0 0 SCC UB 0 FRET M G0 0 FRET (AVB) 0 1 2 1 4 FRET (LP) HC FATIQUE o ERRCOM 0 OTMiR 2 1 3 10T p_Lwien 0 0 0 0 0 0 0 0 2 0 0 2 0 0 2 10 0 0 0 16 TUTREEVED 0 T.L OUTAGE o UTLITY CONTACT: R. Conty l PKN!!P4ASER, 149228678 A-100 m r--,y .-e . - . ,y

                                                                                                        . - . . - . - - . - . . - . . - _ ~

s , i Appendix A UTILITY : EF TOTALTUBES : 9,990 . l PLANT : GRAVELNES6 TUBEMATERLAL : l600 TT I l RUGGED

• 32 SG MODEL  : FRAM 51B 1

i 4 EFPY  : 6.0 H. L TEMP (F) : 613 } ! C1. TEMP (F) : 546 i i DERIC15 <76 78 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 83 TOTAL i o

WASTAGE j DENTNG SP 0 DENTNG TS 0

[ < PITTNG 0 00 SAGA SP 0 00 SAGA TS 0 i O SCC TS 0 DSCCts 0 f FRET (PREH) 0 l J I FRET (AVB) 0 ! FRET (LP) 8 10 1 8 25 ! HC FATIGUE 0 i ! ERACORR 0  ! 05ER S 1 1 7 l . TOTpi mnsr1 0 0 0 0 0 0 0 0 0 5 0 1 6 0 10 0 1 8 1 32 TOTSLEEVED 0 T. L. OUTAGE O I UTLITY CONTACT: R.Comtw PHOE M amF8t 149228678 i l

                                                                                                                                            )

I 1 i t i i A-101

  , . . _ . - _ . , ..-            . - _ _.- _.~ -. - - _.                      .-       .. - - . ~ -... .                    _...-..~           .---... - . _ _-

AppendixA

;                                        UTILITY : GEMENSCHAFTSKUN-                      TOTAL TUBES : 16,344

~ l@AFTWEFEGRattOE O*t PLANT : GDfCE TUBE MATERIAL : l800 PLUGGED: 1 SGMODEL  : KWU-54GS EFPY  : 8.1 H. L TEMP (F) : 620 CL TEMP (F) 559 DEFE3S <76 76 77 78 79 90 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o DENTNGSP 0 DENTNG TS 0 PITTNG 0 00 SAGA SP O 00 SAGA TS 0 08CC TS 0 0 SCC UB 0 RET (PREH) 0 FRET (AVB) 0 FRET (LP) 0 HC FATIGUE o ERRCORR 0 ODER *1 1 < TMPLUGED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 TOT R.EEVED 0 T.L. OUTAGE O UTLITY CONTACT: S. Oder / R. Bouedie

• Probatdy FRET (AVB)

F90MEM.AGER 49-9131 18-2077 / 49-9131 18 9410 l l l l l l l l A-102

                                                                                     - -                   .-      --     _ _ . . .                                     _ -. l

Appendix A I UTILITY : !HKOKU ELECTBIC POWER TOTALTUBES : 6,776 PLANT : IKATA1 TUBEMATERIAL : 1400 MA l FluGGED 349 SGMODEL  : MHl 51 l EFPY :12.6 H. L TEMP (F) : 603 CL TEMP (F) : 550 DERIHS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o DENTNG SP O DENTNG TS 0 i PfTTNG 0 , 00 SAGA SP 0 00 SnGA TS 0 O SCC TS 134 18 6 12 12 14 $$ 77 328 D SCC UB 0 f , ( FRET (PREH) 0 l FRET (AVB) 9 9 FRET (LP) 0 HC FATIGUE o ERACORR 0 t OTHER 12 12 1 TOT PLUGGED 0 0 0 0 0 0 0 146 0 1R 6 12 0 0 12 14 55 0 77 349 j TUT SLEEVED 14 -1 13 T. L. OUTAGE 0 UTLITY CONTACT: H Takamatsu l PHJPE F8AEER 06 441 8821 l l l J i A-103 l

a . . i Appendix A UT8JTY : DWOQJ ELECT 7tC POWER TOTA!. TUBES : 6,764 PLANT : IKATA 2 TUBEMATERIAL : 1600 MA PLLOGED: 4 SGM00EL  : MHl 51M EFf'Y  : 0.7 H. L TEMP (F) : 604

,                                                        CL TEMP (F) : 550 CEFE38       <76      76    77  78  79  80 81  82  B3  84   85  86   87   88       89     90         91      92  93 TOTAL WASTAGE                                                                                                                 o DENTNG SP                                                                                                               0 DEPmNGTS                                                                                                                0 PfTTNG                                                                                                                  0 00 SAGA SP                                                                                                              O OD snGA TS                                                                                                              0 D SCC T5                                                                                                                0 0SCCLB                                                                                                                  0 FRET (PRE}6                                                                                                             0 FRET (AVB)                                                                                                     4        4 FRET (LP)                                                                                                               0 I

HC FATIGUE O h 0 ODER 0 TOTPLUGG!D 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 0 4 i TUT E.EEVED 0 4 T. L. OUTAGE o UTLITY CONTACT: H. Takametsu PKNEPRAMIER 06 441 8821 I A-104 l

__ - - . . . - - _ ~ . . - . - - I Appendix A , 1 l l UTLITY 'CONSOLDATED EDISON TOTAL TUBES : 13,040 PLANT  : NOIAN POWT 2 TUBE MATERIAL : 1600 MA i l Pi t M . 1131 SGMODEL  : W 44 , l EFPY , 12.9 I H. L TEMP (F)

• 589 1 CL TEMP (F) : 530 DEFECTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE O DENTNO SP 3 8 26 16 10 20 84 33 19 55 1 275 l DENTNG TS 0 PITTING 79 76 90 76 27 49 397 00 SAGA SP 0 ,

00 SAGA TS 0 l 0 SCC TS 5 5 I OSCC(B 0 FRET (PREM 0 i FRET (AVB) 2 2 FRET (LP) 3 3 HC FAT 10UE o ERACORR 0 OMR 394 3 14 2 6 2 13 12 3 449 TOTPLUGGED 394 6 0 22 26 16 10 22 0 169 0 112 111 0 144 0 40 0 59 1131 TOT SLEEVED 0 T. L OlfTAGE 1 1 1 1 4 UTLITY CONTACT: Jimmy Mark PHOEMAGER 212 460 3599 A-105

Appendix A UTLITY :NEW YOR(POWER AUTHORITY TOTALTUBES : 13,040 PLANT  : INDIAN PONT 3 (ORIGICNAL S. G.) TUBE MATERIAL : l 600 PLUG (ED , 1828 SGh0 DEL  : W 44 i EFPY  : 6.4 H. L. TEMP (F) : 596 CL TEMP (F) : 543 CIRCTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE 2 2 DENTNG SP 4 69 9 19 5 6 112 DENrNGTS 0 PfTTNG 367 377 23 246 94 176 7 1290 Oc SMGA SP R 0 OD SAGA TS E o O SCC TS , P 0 D SCC tAl L 0 FRET (PREH) A 0 FRET (AVB) C 0 FRET (LP) E O HC FATIGUE D o  ; ERROORR 0 OD(!R 379 32 1 1 11 424 TUrPLUGGED 0 0 0 4 448 9 367 396 0 60 249 95 182 18 0 0 0 0 0 1828 f TOTSLEEVED 2071 635 '3604 T. L OUTAGE 1 1 1 1 1 1 6 UTLITY CONTACT: Jim Gillen

• Total of 3806 tubes sleeved Of these,156 have M _;r?, been PIDEPAAEBER 914 736-8450 plug 9ed, leaving 3451 tubes preveuely sleeved 1

A-1%

s . Appendix A UTILITY : PEWYOfEPOWERAUTHORmf TOTALTUBES , PLANT : 80AN POINT 3 (REPLACEMENT S.G.) TUBE MATERIAL : l 690 TT RIJGGED: 0 SGMODEL  : W-44F EFPY  : 2.7 H. L TEMP (F) : CL TEMP (F) : OERCTS <78 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL j WASTAGE o DEN m G SP 0 DENTNG TS 0 ) Pf7 TING 0 OD S/lGA SP O OD S/lGA TS 0 ) O SCC TS 0 0 SCC LB 0 l FRET (PREH) 0 I FRET (Ave) 0 FRET (LP) 0 HC FATIQUE C ERRCORR 0 3 OngR 0 i TUf PLUGGED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TUT SLEEVED o T. L. OUTAGE 0 t UTLITY CONTACT: Jim Gillen , 1 PtOPEt&AeER 914 736 845( i A-107

AppendixA UTIUTY : GEMENSCHUTSKEIN- TOTAL TUBES : 16,472 KRAFTWERKISAR2 GrrtH PLANT : ISAR 2 TUBE MATERIAL : l800 i PLUGGED. 0 SGMODEL  : KWU-54SK EFPY  : 4.7 H. L TEMP (F) : 615 C1. TEMP (F) : 558 DEFECTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 03 TOTAL WASTAGE O DENTNG SP 0 DENTNG TB 0 PITTNG 0 OD SAGA SP 0 OD S4GA TS o O SCC T5 0 l 0 SCC UB 0 FRET (PREM 0 FRET (AVB) 0 FRET (LP) O HC FATlGK 0 ERFvGem 0 ODER 0 TOTPLUGWED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 j TUTaLEEVED 0 T.L. OUTAGE o UTIUTY CONTACT: S Oder / R. he l 1 PHtMEPSA4ER 49-9131 18-2077 / 49-9131 18 9410 4 A-108 l

  . , _ . . . _ . . - . -        _ . . . _ . - _ _ . . .                       ._...m_       - . _ . . _. _-__ __. _ ..___ _ _ _ ___.___ _ _ ., _ ___ _ . .._ ___ _ _ __._.. .._.__

e . AppendixA i_ UTE.lTY : LHON ELECTRCAFEN06A TOTALTUBES :2,804 PLANT : JOSE CABERA(ZORITA) TUBE MATERIAL : l 600 MA PLUGGED: 147 SG MCOEL  : W 24 EFPY  : 17.7 H. L TEMP (F) : 544

_ CL TEMP (F) 1 537 DEfETTS <76 76 77 78 79 80 81 82 83 84 45 86 87 88 89 90 91 92 93 TOTAL WASTAGE 3 1 4 2 7 2 19 DENTNG SP 0 DENTINGTB 0 Mf7NG 0 OD SAGA SP 0 00 S/lGA TS 1 2 1 1 6 D SOC TS 7 51 4 5 5 4 2 3 81 DSCCtB 0

, FRET (PREH) 0 FRET (AVB) 1 1 2 1 1 2 1 1 3 5 1 2 21 FRET (LP) i 0 HC FATIQUE 0 ERROORR 0 OHR- 5 7 1 1 1 2 1 2 1 21 TUTPLUGGED 9 0 0 8 4 5 11 54 0. 0 7 6 15 7 5 10 3 3 0 147 TOT REEVED 0 4 T. L OUft.3E O UTLITY CONTACT: Gustom Boinni 190PEPAASER 34 1 6516700 t e A-109

                    ,.---a,e-,    , - , - - - ,,   , . , - , . . - - .- -                           ,,,n.           -n..       --n-.,           - ,                   , , - . ~ . , . - . - - - . . . . - -                ,------,--_...wr                -.--c-en r~ r w

                                                                                                                                                                    .                     e i

I AppendixA j UTLfTY : WISCONSN PUSUC 8Em1CE N. TOTALTUBES : 6,776 PLANT MEWALME TU8E MATERML : 1-600 PLUGGED. 517 8GMCCEL  : W 51 EFPY  : 14.0 H. L TEMP (0 : 500 l CL TEMP (F) , 536 OEN CTS 476 76 77 78 79 80 $1 82 83 84 85 48 87 88 89 90 91 92 03 TOTAL WASTA(E 0 + 09 #980 F 0 DENT 94GTB 0 PffT943 0 CO S4GA SP 6 1 4 10 12 43 to 54 17 217 OD SAGA TS 63 25 43 71 114 29 34 185 91 8 4 471 080C78 4 4 DSCCLS 2 1 1 1 5 P4!T (Pep 6 0 FRET (AVB) 9 9 PRET LP) 0 HC FAYGLE O E5WICCf54 0 0954 3 3 6 M_' N 0 0 0 0 0 0 0 0 72 25 49 74 123 43 52 231 157 65 21 912 LDP_' " *f 3 9 51 f3951 TUT PL'." $17 TUTN 1940 1898 aid 690/ 11 161 21 *8 4274 j T.L OUTAGE 1 1 2 UTLfiY CONTACT: 11m Otson '

• 386 teos deptugged, sleeved and retumed to seMoe.

PHufE N M 414-388 2560 EXT. 2443 l 1 l 1 A-110 I

  . . . _ _ . _ _ . _ _ _ _ _ . _ _ _ _ . . . _ . _ _ . _                                 _ . . - . . _ - . . _ _ .                   . _ . . _ . _ _ _ _ . . . - _ _ _ . .                                                               _. _ .m AppendixA UTLITY t ICREAELECTRCPOWERCO.                                TOTAL TUBES : 6,776 PLANT : MOR 1                                               TUBE MATERIAL : 1400 MA 1

! Pil e : 383 SG MODE.  : W 61 EFPY  : 11.7 H. L TEMP (F) : 607 C.L TEMP (F) : 541 ] DERCIB 478 78 77 78 78 80 81 82 43 84 S$ 48 87 88 89 90 81 92 93 TOTAL WASTAGE O , DENTNG F 0 DENTNGT5 0 PfTTNG 419 123 62 54 15 37 4 100 804 00 SAGA SP 3 3 00 SAGA TS 0 0 90C T8 1 13 41 66 DSCCtB 2 3 2 7 PRET (PREH) 0 FRETfAVB) 0 FRET (LP) 0 K:FATIGlE 30 4 34 E*WMX)M 0 CmqR 1 14 28 25 7 76 M I Nsn 0 0 0 0 1 0 0 0 0 0 419 123 52 $4 29 71 0 75 164 978 t.PR.LDWD 15771 (1 01 18951 TOT PLUGED 383 TOT E2EVED 558 178 415 330 97 *1578 T.L. OUTAGE 1 1 2 UTLITY CONTACT: KYOUNG4#(JANG

• Approximately 220 of thoes sleeves

}. have been removed PHofEMAMR; 822 550 4940 I i A-111

AppmdixA UTILITY : KOREA ELECTRC POWERCCL TOTAL TUBES : 11,252 PLANT : KOR12 TUBE MATERIAL : 1-600 TT PLUGGED. 215 SGM00EL :WF I EFPY  : 8.3 H. L TEMP (F) : 616 i i C1. TEMP (F) : 550 OERETS 474 7e 77 78 79 80 81 02 83 84 85 to 87 as 89 9 91 02 93 TOTAL WASTAGE O 00mNGSP 0 DENTNGTS 0 Pf7 TING 0 00 8AGA SP 0 00 SAGA TS 7 116 2 125 09CC15 0 090Cl2 0 FRET (PREH) 0 FRET (AVB) 14 10 1 8 4 12 9 58 FRET (LP) 0 HO FATIGUE o ERRCORR 0 OMR 27 2 1 1 1 32 TUTPLUGGED 0 0 0 0 0 0 0 27 0 0 0 23 127 2 0 8 4 14 to 215 TUTSLEEVED 0 T. L OUTAGE o UTILITY CONTACT: KYOUNG SIKJANG PHofEMAEER 322 550 4940 l l A-112

e e Appendix A UTIUTY : KDREA ELECTRIC POWER COL TOTALTUBES : 16,878 PLANT . KOR13 TUBE MATERIAL : 1400 TT R.000ED: 37 SGMODEL :WF EFPY  : 6.8 H. L TEMP (F) : 619 l CL TEMP (F) : 556 DEFECTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE O DENTNGSP 0 j DENTNG TS 0 PffTING 0 00 S/1GA SP 0 00 S/lGA TS 0 0 SCC TS 0 D SCC UB 0 FRET (PREH) 0 FRET (AVB) 7 6 4 3 0 4 33 FRET (t P) 0 HC FATIGUE o FRRCORR 0 i 0114R 2 1 1 4 l TOTPLUGGED 0 0 0 0 0 0 0 0 0 0 2 0 0 8 6 4 3 9 5 37 i TOT SLEEVED 0 T.L OUTAGE o UTUTY CONTACT: KYN9M JANG MOPEPAASER 822 550 4940 A-113

 ... .   . _.-_. . . .                                 - . - - . .                                         _ _ . _ - - _ ~                                                               . . _ . . . - - .        . _ . . . - _ . - . . . . . . - . - . . . .                                -

Appendix A UTILITY : KOREA ELECTRC POWER CO. TOTAL TUBES : 16,878 PLANT : KORI4 TUBE MATERIAL : 1400 TT l Pii rvsn: 5a so MODE.  : W-F EFPY  : ' 5.8 H. L TEMP (F) : 619 C1. TEMP (F) : 556 DERCTS 476 76 77 7e 79 to at 82 83 84 e5 86 87 88 89 90 91 92 03 TOTAL WASTAGE o ' 0 OENTNG SP DENTNG TS 0 PfTTNG 0 00 SAGA SP 0 00 SAGA TS 0 10 SCC TS 0 IDSCCts o FRET (PREH) 0 FRET (AVB) 5 3 2 9 13 4 36 FRET (LP) 0 l HC FATIGUE o ERRCORR 0 OM 22 22 TOTPt trusn 0 0 0 0 0 0 0 0 0 0 22 0 0 5 3 2 9 13 - 4 58 TOTSLEEVED 0 T. L. OUTAGE o UTILITY CONTACT: KYOUNG-SIK JANG PHOPEPAASER 822 550 4940 i l A-114 l I

Appendix A UTILITY : IMATRAN VOIMA OY TOTAL TUBES . 33216 PLANT : LOVilSA 1 TUBEMATERIAL : AISI 321 PLUGGED: 1 SO MDDEL  : AEE B 213 l l EFPY  : 13.2 H. L TEMP (F) : 567 ! C.L TEMP (F) : 505 i i-l (I R CTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 86 90 91 G2 93 TOTAL l WASTAGE - 0 DENTNG SP 0 l DENTNG TS 0 I PfTTING 0 , I 1 I 00 SAGA SP 0 l 00 SAGA TS 0 O SCC TS , 0 OSCCtB o FRET (PREH) 0 FNET (AVB) 0 , FRET (LP) 0 ! HC FATI(RJE O i ERRCORR 0 l ! 1* 1 OTHER f TOT PLUGtM!D 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 TOTSL e e , T.L OUTAGE o UTLITY CONTACT: THOMAS BUDOAS

• Defect in manufacture I

l PHCNEPLMER: 358 15 6501 i 'Y i t A-115

 - - . _ . ~ ~ .         - . - . . -             .. . - _           . . . . - . -          .

Appendix A I i l UTILITY : IMATRAN VONA OY TOTAL TUDES 33216 PLANT : LOVHSA 2 TUDEMATERIAL : AISI 321 PLUGGED: 1 SGM00EL  : AEE B 213 EFPY  : 11.3 H. L TEMP (F) : 567 l CL TEMP (F) : 505 DEHCTS <78 76 77 78 79 80 81 02 83 84 85 86 87 08 89 90 91 92 93 TOTAL WASTAGE O DENfNG SP 0 DENTNG TS 0 i PfTTING 0 00 SAGA SP 0 l 00 SAGA TS 0 i ID SCC TS 0 ! ID SCC (B o FRET (PREH) 0 FRET (AVB) o AET (LP) O HC FATEJE o Em 0 01){R 1' 1 TOTPLUGGED 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 TOTE.EEVED 0 T.L OUTAGE 0 i UTIUTY CONTACT: THOMAS BUDOAS

• Defect in manufacture PHOPE PAMIER 358 15 5501 l

A-116

AppendixA UTIUTY : MANE YANKEE ATOMIC POWER CO. TOTAL TUBES : 17109 PLANT : MANEYAMCEE TUBEMATERIAL : l-600 MA R.UGGED, 264 SG M00EL  : CE 67 EFPY  : 14.8 H. L TEMP (F) : 602 C1. TEMP (F) : 550 DERCTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE 12 11 23 DENTNG SP 5 25 30 DENTINGTS 1 1 PfrTNG 20 1 8 17 12 56 00 SSGA SP 1 29 30 ) OD SAGA TS 11 11 0 8C0 TS 31 21 52 08CCt2 10 4 14 FRET (PREH 2 2 FRET (AVB) 0 l FRET (LP) 2 2 l HC FATIGUE o EHRCORR 0 CmER 6 15 1 3 3 1 14 43 TUTPLUGED 6 0 0 15 0 0 0 13 0 0 36 0 2 13 0 62 0 63 54 264 TOTR.EEVED 0 T.L OUTAGE 1 1 UTLITY CONTACT: LN00LN SPEED PHOMEMAGER (207) 798-4282

                              +

A-117

                                                                                                                                    .      o l

Appendix A UTILITY : CLEEPOWERCO. TOTAL TUBES : 18,696 PLANT : McOUIRE1 TUBE MATERIAL : 1400 MA pinvsn:1ste soume.  : W.02 EFPY  : 7.3 H. L TEMP (F) : 618 C.L TEMP (F) : 559

                         <76  76   77    78   79      to    81   82      83    e4   85   86    47   88      89   90  91   92   93 TOTAL DEFECTS O

WASTAGE 4 4 DENTNG SP

                                                                       '                                                                O DENTNGTS 0

PfTTING 30 13 34 77 00 S/lGA SP 2 4 6 00 S/lGA TS 2 37 120 105 55 160 30 5 123 653 D SCC TS 383 2 10 395 DSCCLE FRET C ?, 7 2 7 1 1 3 1 22 7 1 e FRET (AVB) 1 4 13 4 4 26 FRET (LP) O FC FATX1N: 0 T e (wwie 55 2 2 5 11 17 11 101 233 161 628 GO TOT p_t ruun 0 0 0 85 0 9 2 0 4 420 133 125 74 186 181 250 342 1919 0 0 307 444 841 TOT 5.EEVED 1 1 1 1 4 T. L. OUTAGE UTLITYCONTACT: Den Maves PtOPE!M M 704 382 4211

                                                                                                                                                  ]

A-118

s . ! Appendix A l UTLITY : DLME PCM! RCD. TOTAL TUBES : 18,696 PLANT : McGUIRE2 TUBE MATERIAL : l 600 MA PI m 1387 SG MODEL  : W.D3 EFPY  : 7.2 H. L TEMP (F) : 618 C1. TEMP (F) : 558 I DEFECTS <78 78 77 78 79 80 81 82 83 84 85 88 87 88 89 9C 91 92 93 TOTAL WASTAGE o DEMN3 SP 4 4 08NTNGT5 0 PITTNG 0 00 SAGA SP 8 5 11 OD SAGA TS 4 4 08CCTS 6 141 152 139 4 132 573 D SCC W 50 406 1 457 FRET PREH) 3 3 8 FRET (AVB) 1 4 4 9 i FRET (LP) O E FATIGUE o EPRCORR 0 One!R 15 31 12 137 128 323 TOTPU m 0 0 0 0 0 0 0 15 0 0 50 411 141 I152 173 17 0 154 274 1887 TOTERNED 478 137 815 l 1 l T. L. OLJTAGE 1 - LITtJTY CONTACT: Den Mavus 4 P>OE MAGER. 704 382-4211 i d e 4 3 i A-119 N

       *-          mv

 , - _ . . -            _ - . . - . - . - ~ . - .             _ - . - - .                     _ . _ _ - . - . - . . - - _ . - . . . _ -               . . . . - .           . . .
                                                                                                                                                                    . t Appendix A UTIUTY - KANSAIELECTRC POWER                         TOTALTUBES : 8,852 PLANT         -

MlHAMA 1 TUBE MATERIAL : l-600 MA PLUGGED' 1891 SGMODEL :CE EFP(  : 10# H. L TEMP (F) : 599 C.L TEMP (F) : 553 DEFECTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL 1149 180 1329 i WASTAGE 0 DEPENG_SP 0 DEPmNGTS PITTNG 6 243 16 265 0 00 SAGA SP 00 SAGA TS 0 10 SCCTS 0 O SCC UB 0 l 0 l FRET (PREH) 0 FP1:T (AVB) FRET (LP) 0 HC FATIGUE o ERRCORR 0 ODER 870 15 13 1 899 PL123GiD 2019 195 0 0 0 0 13 0 0 0 0 0 0 0 6 0 0 244 16 2493 UPPim 1471 (3201 f2351 f6021 TOTPLUGWiD 1891 TOTSUEEVED l l 0 T. L OUTAGE 2 l , l 1 3 UTILITY CONTACT: H. Takamatsu ! PHOPENLAGER 06 441 8821 l A-120

6 m Appendix A

                                                                                                                         ~
                                                                                                                                \

l UTILITY : MANSAI ELECTRIC POV6*. TOTALTUGES : 6,520 PLANT : MlHAMA 2 TUBEMATERIAL : l 600 MA l PLUGGED 412 SGMODEL  : MHl 44  ; EFPY  : 11.5 H. L TEMP (F) : 599 CL TEMP (F) : 553 L fA'1I:TS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL

         ,W'EF(IE      266                                                                           11                277      )

DENTR W o l DENTING 1S R 0 PfTTING E o 00 SAGA SP 13 P 13 00 SAGA TS 25 17 7 6 2 1 L 58 D SOC TS 36 5 A 41 D SCC LB 1 C 1  ; FRET (PREH) E o FRET (AVB) 1 4 5 FRET (LP) 0 C FATIGUE 1 1 h 0 ODER 4 8 1 1 2 16 TOTPIf amm 266 4 0 8 25 18 0 13 43 6 0 3 6 3 0 16 1 0 412 TOT 3.EEVED 3 14 25 -1 41 T.L OLTTAGE 1 1 1 *1 4 UTS.lTY CONTACT: _H. Takamatsu

• Longlerm outage due to tube treak by higheycle fretting fatigue PHOENLASER 06-441-9021 i

l A-121 j

                                                                                                      . e Appendix A UTILITY : KANSAIELECTRC POWER            TOTALTUBES : 10,164 PUWT

• MtHAMA 3 TUBE MATERIAL : l-600 MA PLUGGED 797 SGMODEL  : MHi-51 EFPY  : 12.1 H. L TEMP (F) : 608 CL TEMP (F) : 551 DEFECTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 02 93 TOTAL WASTry 0 DENTNG SP 0

DENTNG TS 0 Pff7NG 0 OD S/lGA SP 51 61 72 184 OD Sr.GA TS 0 D 8CC Ts ice 3 17 12 22 60 108 88 100 608 DSCC LB o FRET (PREH) 0 FRET (AVB) 2 2 FRET (LP) 0 HC FATIGUE J 5 %Duim 0 OMR 2 1 3 TOTPit N ' 2 0 0 0 0 0 0 0 108 3 19 0 12 23 60 0 158 149 262 797 l TUTREEVED 0 T.L. OUTAGE O UTLITY CONTACT: H. Takametsu M O E M ne sst 06-441 8821 l l l I 1 l l A-122

i . AppendixA UTILITY : NORTHEAST UTLmES TOTAL TUBES  : 17,038 PLANT : MILLSTONE 2(OFUGINAL S. G.) TUBEMATERIAL : 1800 MA PLUGGED: 3080 SG MODEL  : CE-87 l

10.9 EFPY H. L. TEMP (F) : 604 C.L. TEMP (F)  : 550 DEFETB <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 TOTAL WASTA3E o DENTNG SF 783 4 1 3 6 6 13 796 DENTNG TS 4 11 3 18 l PfTTING 704 180 56 22 36 366 236 S4 1 1855 00 S4GA SP 2 2 )

OD SAGA TS 1 26 413 30 34 504 O SCC TS R C l O SCC UB E o FPET(PREH) P 0 FRET (AVB) L 0 FRET (LP) A 0 HC FAT 1GUE C 0 l EFUK:OF4R E o 04EFI 30 1 1 1 4 3 44 3 4 14 D 105 TOTPLUGGED 30 0 763 0 5 1 709 0 192 0 63 28 81 401 649 94 64 3080 l TOTE.EEVED l 2022 2917 225 '5164 T. L. OUTAGE l 1 1 1 3 UTLrrY CONTACT: John Kliesiewick

• Appetmimately $35 sleeved tubes ham been plu9ged PHOFE PAAEER: 203 665 3969 4

A-123

 -   -                                                _            -     .                         _ _ . = _ . . -             . - ,

e e l 1 l AppendixA l I UTLfTY NORTHEASTUTILITIES TOTALTUBES  : 17.038 . PLANT . M81 STONE 2(ORKNNALS.G.) TUBEMATERIAL : l-600 MA i p i rvsn: 3000 eGhoce.  : CE 67 l l EFPY 10.9 H. L TEMP (F) : 604 C.L. TEMP (F)  : 550 WiFECTS <76 76 77 78 79 80 81 82l83 84 85 86 87 88 89 90 91 02 93 TOTAL WASTAGE O DENTDG SP 763 4 1 3 6 6 13 796 4 11 3 18 DEPm>G TS PfTTING 704 180 56 22 36 366 236 54 1 1655 00 SAGA SP 2 2 l 00 $4GA TS 1 26 413 30 34 504 O SCC TS R 0 0800 UB E o FRET (PREF 0 P O FRFT(AVB) L 0 FRET (LP) A 0 HO FATOW C 0 ERRCORR E O OW 30 1 1 1 4 3 44 3 4 14 0 105 TOT M).N 30 0 763 0 5 1 700 0 192 0 63 24 81 401 649 94 64 0 3000 TOTSLIEVED 2022 2917 225 '5164 T. L OUTAGE 1 1 1 3 j

                                       'muTY CONTACT               g. hn Klisiewicz                                                     ' Approulmately 535 anseved tubes have been Pb90ed PHOPE pa nasst              203 665 3969 l

A-124

e o Appendix A UTUTY , NORTHEASTUTUTES TOTAL TUBES  : 17,056 PLANT : MILLSTONE 2(REPLACEMENT S.G.) TUBE MATERIAL : 1-690 TT FtuGGED, 0 SG M00EL  : B&W CANADA EFPY  : 0.0 H. L TEMP (F) : 596 C.L TEMP (F)  : 548 DEH CTS <78 78 77 78 79 80 81 82 83 84 85 88 87 88 89 90 91 92 93 TOTAL WASTAGE o DENTNG SP 0 DENTNG TS 0 PfTTNG 0 00 S/lG A SP O 00 S4G A TS 0 (D SCC TS 9, O SCC UB 0 AET(PREH) O MET (AVB) O mE'T (LP) 0 W FATIGtE O EHARORR 0 OnfR 0 TOTPLUGGED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TOTSLEEVED 0 T. L. OUTAGE O UTUTY CONTACT: John Klis'* wict PH3EMAGER 203 665 3969 A-125

AppendixA UTIUTY NORTHEASTUTLmES TOTAL TUBES : 22054 PLANT

• MR1 STONE 3 TUBE MATERIAL : 1400 TT PLUGGED: 28 SGMODEL :WF EFPV  : 5.2 H. L TEMP (F) : 621 CL TEMP (F) : 558 DERINS <76 76 77 78 79 80 81 02 83 84 85 to 87 88 89 90 91 92 93 TOTAL WASTAGE O DENTNG SP O -

l DENflNG TS 0 i PffTING 0 00 SAGA SP 0 00 SnGA TS 0 ID SCC TS 0 0SCCLB 0 FRET (PREH 0 FRET (AVB) 2 3 5 7 17 FRET (LP) 0 I HC FATIGUE 0 ERRCORR 0 Cmte 5 5 1 11 TOTPLUGED 0 0 0 0 0 0 0 0 0 5 5 0 2 0 4 0 5 0 7 28 TOTS.EEVED 0 T. L. OUTAGE 'O UTUTY CONTACT: John Klis6ewic: PHJPE PAASTR 203 665-3969 A-126

• a Appendix A i

i i UTIUTY : GEMENSCHAFT!8EFM TOTALTUBES : 12,063

;                                KRAFTWEF8(PECKAR GmbH

PLANT NECKARWESTHE841 TUBE MATERLAL

1-800 i PLUGGED 18 SG MODEL :KWU i'

EFPY  : 13.4 H. L. TEMP (F) : 612 CL. TEMP (F) : 560 6 j DEFECTS <76 76 '7 78 79 80 81 82 83 04 85 86 87 88 89 90 91 92 93 TOTAL i WASTAGE 3 1 -1 1 5 1 12 DENTNG SP 0 DENTING TS 0

.        PITTNG                                                                                                                                          0 00 S/ IGA SP                                                                                                                                    O                 I 1

OD S/lGA TS 0 j 0 SCC TE o l DSCC12 0 l FRET (PREH) 0 FRET (AVB) 0 FRET (LP) 3 3 I !. HC t '.TUUE O 1 j ERRCORR 0

 ,       OH9t                                  *3                                                                                                         0                i i                                                                                                                                                                         !

TOTPLUGGED 0 0 0 0 0 6 0

• 1 0 0 0 1 5 0 1 3 0 0 18 '

i j TOTSLEEVED 0 T.L. OUTAGE 1 1 i UT8JTY CONTACT: S. Odar / R. Bouede

• 3 Tubes pu8ed for irwesti9ation PHOPE PAAEER 49-9131-18 2077 / 49 9131 18-9410 A-127

e 4 AppendixA UTILITY : GEMENSCHAFI9 KERN. TOTAL TUBES : 16,472 KRAFTWEM(NECKAR GrreH PLANT : NECKARWESTHE8M TUBE MATERIAL : 1800 Pu mwn, O SGM00EL  : KWU-54SK EFPY

• 4.3 H. L TEMP (F) : 616 C.L. TEMP (F) : 558 DEFECTS <76 76 77 78 78 80 21 82 83 84 85 Sf 87f 88 89 90 91 92 93 TCTAL WASTAGE 3 DENTNG SP 0 DENTNG TS 0 PfTTNG 0 OD S4GA SP 0 OD SoGA TS 0 O SCC TS 0 09CCl2 0 RET (PREH) 0 FRET (AVB) 0 FRET iP) O m FATIGUE o ERRCORR 0 cmtR 0 TUTPLUGGED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TOTSLEEVED l 0 T. L. OUTAGE o LRILffY CONTACT: S. Oder / R. Bouecke l l

PtOE M.ASER: 49 9131 18-7077 / 49-9131 18 9410 A-128 1 l l

7g. . . l l 4 Appendix A j l UTIUTY EE TOTALTUBES : 21,368 PLANT NOGENT/ SONE 1 TUBE MATERIAL : 1-600 TT

ItuGGED 284 SGM00EL

FRAM-68/19 I

j EFPY . 3.7 H. L TEMP (F) : 616 i CL TEMP (F) : 559 l 1 J DEFETS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL { WASTAGE 0 OENnNG SP O l , DENTING TS 246 8 3 2 250  ; j' PfTTING 0

                                                                                                                                                                   ]

00 SAGA SP , O l l' 00 WIGA TS 0 0 SCC TS 1 2 3 DSCCl2 0 CRET(PREH) 0 FRET (AVB) 0 FRET &P) 6 6 HC FATIGUE O ERRCORR 0 O H 71 1 11 1 3 16 TOTPit e 0 0 0 0 0 0 0 0 0 0 0 0 0 0 252 10 14 3 5 28d TUT SLEEVED o T. L. OUTAGE _ 0 UTLITY CONTACT: R. Canby PHopsp asirg 149228678 A-129

,. o U AppendixA I UTILITY EIF TOTAL TUBES . 21,368 PLANT : NOGENT/SENE2 TUBEMATERIAL : 1-600 TT PLUGGED. 83 SGMODEL  : FRAM-68/19 EFPY . 3.7 H. L TEMP (F) : 616 C1. TEh'P (F) : 559 DEFECTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 02 93 TOTAL WASTAGE o DENTNG SP 0 D("NTNG TS 1 1 10 12 PfTTNG 0 OD SMGA SP O 00 SAGA TS 0 0 SCC TS 0 0 SCC (2 0 FRET (PREH) 0 FRET (AVB) 4 1 5 FRET (LP) 15 15 HC FATIGlE O ERRCORR 0 OT E 3 21 2 25 51 TOTPLlXXED 0 0 0 0 0 0 0 0 0 0 0 0 3 0 15 1 22 16 26 83 TOTREEVED 0 T. L OUTAGE I 1 1 UTILTTY CONTACT: R.Conty l PHOPEPAAGER 1 49-22 86 78 _ l l l ! A-130 l

                                                                                                                                   \

l

                  - . . .         . . -         ..      . . - . .           . . .    ....- .        - . - - _ . - . _ . _ . - . .. ~ - _ ~... -. - - ,,
  .~4--
        -4.

Appendix A LITlUTY.: Vaginia Power TOTALTUBES 10164 1

                          ' PLANT : North Anna 1                                           TUBE MATERIAL : l-600 MA                                                                 l PUIKED : 2005                                                  SGMODEL                       W-51 EFPY        : 10.2                                             H. L TEMP (F) : 618 1

C.L. TEMP (F)

• 547 MFECTS s78 78 77 78 78 40 81 82 83 84 85 88 87 88 88 80 81 82 83 TOTAL WASTAGE 1 1 DENTN3 F 0 OENfNGTS 0

_ ., l 00 SAGA SP 2 82 470 564 l l OD SAGA TS 1 2 45 3 48 100 l O SCCTS 45 28 188 38 307 l j 000Cl2 278* 3 1 2 285 FIET MEH) 0 4-FRET (AVB) 3 3 i FRET AP) o < W FATGK 1 1

,           ERRCORR                                                                                                                                                               0

• ~ ODER 2 24 84 423^ 118 288/1388 21 804 TOT PLUGED 0 0 0 0 281 0 ' 3 0 0 25 88 0 Sie 0 158 0 471 627 0 2085 ,

1 TOTS.EEVED 0 MApE 1 1 1 1 4 l UTLITY CONTACT: Joe Eastwood

• 278 prevenHveh plugged PHGEMAER (804) 273 2730 ^ 246 plumed to IDSCC at tube sigiport plate 178 plugged due to 7th sagipovi piste fatigue ineue.

8138 pronously plugged tibes rehaned to service A-131

e i AppendixA a e UTIUTY . VIRGHAPONER TOTAL TUBES : 10164 PLANT . NORTH Me4A 1 (ONGINAL SG) TUBE MATERAL : 1-600 MA pii rram : 2005 33 MODEL  : W 51 EFPY

• 9.6 H. L TEMP (F) : 618 CL TEMP (F) : 547 MFECTS <76 76 77 78 79 80 81 82 83 84 05 06 87 88 89 90 91 92 93 TOTAL 1 1 WASTAGE 0

DENTN3SP R 0 DENTN3 TS PfTTNG E O 00 8/H3A SP 2 92 470 P 564 OD S/tGA TS 1 2 45 3 40 l 100 0 800 78 45 28 198 38 A 307 D SCC LB 279* 3 1 2 C 285 FRET (PREH) E o FRET (AVB) 3 D 3 FRET (LM 0 1 W FATERE 1 EN WORM 0 OHR 2 24 84 423^ 118 268 21 940 M'm 0 0 0 0 281 0 3 0 0 25 86 0 516 0 158 0 607 527 2201 N'N f1361 (1361 TOT P'_'_" 2065 TOTS.EEVED 0 T. L OUTAGE 1 1 1 1 4 UTILITY CONTACT: Joe Eastwood

• 279 proverdively plugged PHofEp amisst (8041 273 2730 a 245 plug 9ed to IDSCC at tube support pisse 178 plugged due to 7th support plate feigue issue.

l 4 A-132 3 a 4 e- -- r---- -

                  -v.-         -.    . . _

Appendix A UTIUTY : VIRGNA POWER TOTAL RIBES : 10776 PLANT : NORTH ANNA 1 (REPLACEMENT SG) TUBE MATERIAL : 1400 TT , RUGGED o SGMODEL  : W 54 F EFPY  : 0.7 H. L TEMP (F) : 613 C.L. TEMP (F) : 547 DERCTS 476 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o DENTNG SP 0 DEN 11NG TS 0 a PfTTING 0 00 S4GA SP 0 00 SnGA TS 0 0 SCC TS 0 0 SCC UB 1 FnET(pre 4 0 gAVB) 0 ) FRET (LP) 0 C FATIGUE 0 EiWiru.mA 0 OMiR 0 707m t ransri 0 0 0 0 i) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TOTSLEEVED 0 . Y.L OUTAGE o UTLITY CONTACT: Joe Eastwood PHOMEMASER (804) 273-2730 A-133

   - ~   -                             . . . .      _                -.         -    .    .          . . . . .          -.             .    -_ -___.__. .                             -           . - . .

AppendixA l I UTUTY . VR3NWPOWER TOTALTUBES : 10164 PLANT

• NORTH ANNA 2 TUBE MATERIAL : 1400 MA nuGGED : 1332 SG MCOEL . W-51 EFP/ :10.1 H.L TEMP (F) : 614 CL TEMP (F) : 647 DEFENS <78 76 77 78 79 40 81 82 83 se as as 87 es 39 90 91 02 93 TOTAL WASTAGE 1 1 16 1 19 DENTNG y 0 DENTNGTS 0 PfTTING 0 00 S/1GA SP 8 30 204 301 543 00 S/lGA 4 1 30 9 36 76 O SOC TS 2 6 7 10 13 104 149 0 9CC UB 202' 8 6 6 2 3 304 FET(PFEH) 0 FitET (AVB) 7 6 11 0 18 51 4

j AURQ 2 2 l HC FATO *.! O E7RCORA 0 OMF1 120^ 1 9 15 "157 302 Alm 0 0 0 0 282 0 0 0 0 3 0 9 155 0 29 100 0 250 620 1448 LPFU N l11618 f t 161 I TOT AIM 1332 TOT E.EEMD  ! O T. L OUTAGE 1 1 1l 1 4

                                                                                                                                          ' 282 proverdiveey pW (Rout 1)

UTUTY CONTACT: Joe Eastwood a 11P preventively plugged due to PHONE NUBEER (804) 273-2730 th support plate fatigue inue

                                                                                                                                          # 116 previously plugged tubes resumed to service I                                                                                                                                          (7th s@ port piste latque issue)
                                                                                                                                          " 85 pluoced due to D indcaterm at tube support plate Balance for other attrammions and *boming' of tubes in whch stabatzers couW v be haerted.

I A-134 1

    .   ,                                                                                                                                    j Appendix A l

UTILITY KEFNOW'TWEPK TOTAL TUBES : 5,210 ) OERGHEN GntH ) PLANT : OBRIGHEN (ORIGIONAL S. G.) TUBE MATERIAL : 1400 MA j l PLUGGED. 4ai , SGM00EL :KWU EFPY  : 11.2 H. L TEMP (F) : 589 CL TEMP (F) : 541 DERL15 476 76 77 78 79 to 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o OEMNG SP 0 DENTING TS R 0 PffTING E o 00 S/lGA SP P 0 00 SrlGA TS 26 1 3 2 L 32 O SCC TS 5 16 29 88 A 138 DSCCt2 12 1 2 C 15 FRET (PREH) E o FRET (AVB) D 0 FRET &P) 0 E FAT 10UE O EFfewiuR 0 OTHER* 160 8 23 32 9 28 14 2 276 TOTPR N 198 8 24 32 15 49 45 90 0 0 0 0 0 0 0 0 0 0 0 461

                                                           '                                                                             0 TOT 5.EEVED T.L OUTAGE       6    1     2                                                                                                 9 UTLITY CONTACT: S. Oder / R. Bouseke

• Probably SCC PHOME NLMBER 49 9131 18 2077 / 49 9131 18 9410 l

1 A-135 w o, -- - , , , . . . , _ . __. . y , r--- -e- - ,

Appendix A a UTUTY : KEFDMRAFTWEFE TOTAL TUBES : 6,020 OGRIGHEN GritH PLANT : OBRIGHEN(REPLACEMENTS.G.) TUBEMATERIAL : 1800 PLUGGED: 0 SGMODEL :KWU EFPY  : 7.7 H. L TEMP (F) : 589 C. L TEMP (F) : 534 DEFETS <76 78 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o

                       ')ENTNG SP                                                                                                            O DENTNGTS                                                                                                              0 PfTTNG                                                                                                                0 00 SAGA SP                                                                                                            O 00 SAGA TS                                                                                                            0 0 SCC TS                                                                                                              0 0 SCC UB                                                                                                              0 FFET(PFEH)                                                                                                            0 FRET (AVB)                                                                                                            0 FRET G.P)                                                                                                             0 HC FATMEJE                                                                                                             O Efikwm                                                                                                                0 ODER                                                                                                                  0 TUTPlt N           O          O        0   0      0      0   0   0   0    0    0   0    0    0   0   0   0   0   0    0 TOT sin c8NED                                                                                                          0 T.L OUTAGE                                                                                                             O UTUTY CONTACT: S Oder / R. Be=*

PHonEMAEIER: 49 9131 18-2077 / 40-9131 18-9410 I l A-136

Appendix A l I UTLITY : DL*EPOWER TOTAL TUBES : 31,062 i PLANT : OCOEE1 TUBE MATERIAL : 1-600 PLUGGED: 1286 SG M308. :OTSG EFPY  : 14.5 H. L TEMP (F) : 604 C.L TEMP (F) : 554 DER! CTS <78 78 77 78 79 80 81 82 83 84 85 88 87 88 89 90 91 92 93 TOTAL WASTAGE o DENTNG F 0 09@NGTS 0 pfTTNG 0 00 6,10 A SP 0 OD SAGA TS 0 0 SCC TS 0 D SCC UB C FRET (PREH) 0 FRET (AVB) 0 FRET (LP) 0 HC FAT 10UE 6 2 1 20 2 31 ERRtX)RR 45 75 41 24 48 59 50 50 49 550 991 cm4R 2 8 47 9 3 2 a 3 61 11 10 60 244 TOTPLUGGED 2 6 SS 47 84 0 45 2 24 56 3 81 79 0 61 60 49 612 0 1266 TOTREEVE) 6 469 475 T. L OUTAGE 2 4 1 1 1 2 1 2 14 UTUTY COEACT: Den Maves PHOfEMAGE7t (704) 382 4 211 i A-137 l 1 i l l I

AppendixA UTILITY : DLKEPOMER TOTALTUBES : 31,062 PLANT : OCOPEE1 TUBE MATERiM. : l-600 PII N . 1266 . SGMODEL  : OTSG EFPY  : 13.6 H. L TEMP (F) : 604 C.L TEMP (F) : 554 DEFECTS <76 78 77 78 79 80 s1 82 83 84 as se a7 88 89 90 91 92 TOTAL WASTAE 0 DENTNGSP 0 DENTNGTS 0 PITTNG 0 OD SAGA SP 0 OD SAGA TS O' ID SCCTS 0 08CC t2 0 FRET (PREM 0 FRET (AVB) 0 FRET (LP) O HC FATIGUE 6 2 1 20 2 31 1 ERRCORR 45 75 41 24 48 59 50 50 49 550 991 OTMiR 2 8 47 9 3 2 8 3 81 11 to 60 244 TOT Pilm 2 6 55 47 84 0 45 2 24 56 3 81 79 0 61 60 49 612 1266 TOTREINED l 469 475 T. L OUTAGE 2 4 Il 1 1 2 1 2 14 UTLITY CONTACT: Den Maves PmPENLMIER (704) 382 4211 l A-138 l

d . Appendix E UTILITY , CuGPOWER TOTALTUBES : 31,062 PLANT : OCDE2 TUBE MATERIAL : 1-600 PLUGGED: 318 SGMODEL :OTSG EFPY  : 13,9 H. L TEMP (F) : 604 C1. TEMP (F) : 554 DERCTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 02 93 TOTAL WASTAGE o DENTNG SP O DENTNG TS 0 PfTTNG 0 OD SAGA SP 0 00 SAGA TS 0 0 SCC TS 0 0SCCt.B 0 FRET (PREH) 0 l FRET (AVB) 0 l FRET (LP) O HC FATK3UE 1 5 1 12 1 4 5 29 ERACORA 1 8 16 5 20 70 109 229 l Om to 3 8 1 9 9 9 3 1 7 60 TOTPLtMGED 11 4 0 13 0 1 1 9 8 0 9 0 0 37 9 25 0 77 114 318 TOT SLEEVED 228 228 T. L OUTAGE 1 1 1 1 1 5 tJTLTTY CONTACT: Den Mayes PR]tE M MBER; (704) 382 4211 A-139

e 6 l AppendixA UTLITY : DLMEPOMR TOTALTUBES : 31,062 PLANT : 000MEE3 TUBE MATERIAL : 1400 PLUGOED* 622 SGMODEL tOTSG EFPY  : 13.7 H. L TEMP (F) : 604 CL TEMP (F) : 554

               <76   76     77  78  79  80  81   82  83   84   85  86   87   88  89  90  91  92  93 TOTAL DEFECTS O

WASTAGE 0 DENTNG SP 0 DENTNGTS 0 PrrTNG 0 00 SdGA SP 0 00 SdGA TS 0 0 SCC TS 0 0 SCC UB 0 FRETf = 3 0 FRET (AVB) O FRET fLP) HC FATIQUE 3 3 5 18 8 2 3 42 ERFewm 13 55 41 15 31 114 132 401 CO 84 12 1 2 22 16 7 23 12 179 TUTPLUnnm 84 3 15 1 2 5 0 22 0 13 16 7 73 72 15 0 33 126 135 622 TOT S.C.EVED 247 247 T.L OUTAGE 1 3 1 J, 1 2 1 1 1 13 UTLITY CONTACT: Den Maves PHOPEMAGER (704) 382-4211 l A-140 i

AppendixA UTILITY :KANSAI ELECTHC POWER TOTALTUBES : 13,552 PLANT :OHI1 TUBE MATERIAL: 1-600 MA PLUGGED 2253 SG600EL W-$1 A EFPY  : 8.1 H. L. TEMP (F) : 613 ) 1 C.L TEMP (F) : 552 l DEFECTS <78 78 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE _ 0 DENTNG SP 0 l DemNGTS 0 PfTnNG 0 1 1 OD S/lGA SP 26 285 475 31 69 150 163 1219 J OD S/ IGA TS 0 j ID SCCTS 46 105 185 42 25 121 76 72 672 ID SCC UB 31 31 l FRET (PREH) 0 FRET (AVB) 0 l FRET (LP) 0 HC FATIGUE

• O l

ERACOfR 0 ODER 723 1 1 725 PLtR3E!D 0 0 0 0 0 0 754 72 390 0 661 42 56 211 226 0 235 2647 t# R.UG GED [601 (1161 ISS) [1601 [3941 TOTPLUGGED 22:53 TOTSLEEVED 81 443 650 743 162 1122 863 877 570 5511 T. L. OUTAGE 1 1 UTLITY CONTACT: H. Takamatsu l l PHOMEPAAEER 06-441 8821 A-141

                                                                                                             . t AppendixA UTIUTY KANSAI ELECTRC POWER             TOTAL TUBES : 13,552 PLANT . OH12                            TUBE MATERIAL : l-600 MA RUGGED 485                              SGMODEL       : MHI-51 A EFPY     ; 10.2                         H. L TEMP (F) : 613 C.L TEMP (F) : 552 UEFETS       <76   76    77  78  79  80  81  82  83   84   85  86 l 87   88   89             90  91  92  93 TOTAL WASTAGE                                                                                                          O DENTNG SP                                                                                                        O DEPmHGTS                                                                                                         0 PfTTING                                                                                                          0 00 S/lGA SP                                                                                                      O OD S/lGA TS                                                                                                      0 D SCC TS                                      63       19    8        9   14                  34  32 286       465 0 SCC (E                                                                                                         O FRET (PREH)                                                                                                      0 FRET (AVB)                                                            1    7                   5   4            17 FRET (LP)                                                                                                        O HC FATGUE                                                                                                        o ERRCORR                                                                                                          0 Cm4R                                       3                                                                     3 TOTPLUGGED      0    0     0   0   0   0   3  63   0   19    8  0    10   21               0  39  36 286   0   485 TCN E.EEVED                                             8                  1                           3         4 T. L. OUTAGE                                                                                                     O UTLITY CONTACT: H Takamatsu FtDPEMASER        06-441 8821 A-142

s e 4

4 Appendix A 4 I UTIUTY : KANSAIELECTRIC POWER TOTALTUBES : 13,528 d I 4 i PLANT OHl3 TUBE MATERIAL : l-690 TT 1 l I q PLUGGED' 0 SGM0(TL  : MHi-52FA ' i EFPY - 1.8 H. L TEMP (F) : 617 i

C1. TEMP (F) : 553 i

j DEFECTS <76 76 77 74 79 80 81 82 83 84 SS 86 87 08 89 90 91 92 93' TOTAL j WASTAGE o { DENTNG SP 0 DEN 11NG TS 0 l PfTTNG 0 ) 00 S4GA SP 0 j OD SAGA TS 0 j oaccTs 0 1 osecuB 0 i . FRET (PREH) 0 FRET (AVB) 0 ! FRET (LP) 0 HC FAVGUE O Em 0 OMR 0 TOTP t raram 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TOTREEVED 0 T.L OUTAGE O UTLITY CONTACT: H. Takamatsu l PKDEM A 06-441-8821 I 1 l A-143

AppenExA UTILITY KANSAIELECTRC POWER TOTAL TUBES : 13,528 PLANT : OH14 TUBE MATERIAL : 1-690 TT l PI ' m 0 SGM00EL  : MHi-52FA EFPY ' O.9 H. L TEMP (F) : 617 C1. TEMP (F) : 553 478 78 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL DERCTS o WASTAGE 0 DENTNG SP 0 DENTNG TS 0 PfTTNG 0 00 S4GA SP 0 00 SMGA TS 0 0 SCC TS o 0SCCtm 0 FRET = 3 0 FRET (AVB) 0 FRET (LP) O HC FATKKE 0 t'niwvem 0 ODER 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TOTPil_ m 0 0 0 0 0 o TOTE.EEVED , o T. L. OUTAGE UTIUTY CONTACT: H Takamatsu ROEPAAMER 08-441-8P 21 1 A-144

Appendix A i l UTIUTY

• CONSUBERS FOYERCn TOTAL TUBES : 17.038 l

, PLANT PAUSADES (OFMGINAL S. G.) TUBE MATERIAL : 1600 l PLUGGED. 4486 SGMCOEL :CE i EFPY  : 8.3 H. L TEMP (F) : 599 5 C.L TEMP (F) : 548 CE R CTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE 2051 711 12 14 44 3 3735 DENTNG S9 4 6 5 6 8 3 19 51 DENTNG TS 0 A l 1

MTTNG R 0 00 SAGA SP 27 15 18 96 E 156 00 SAGA TS P 0 0 SCC TS L 0 0SCCt.S A 0 FRET (PREH) C 0 l FRET (AVB) E o FRET (LP) D 0 HC FATnK 0 ERRCORR 2 4 6

OTHER 2 244 5 287 538 i TOT PLUGGED 2951 711 0 16 20 0 de 2 0 280 8 0 20 46 383 0 0 0 0 4486

TUTSLEEVED 14 23 l 37 i T. L OUTAGE 2 l 1 1 2 2 8 UTLITY CONTACT: Tom Rexius )

FtCNEM.AEBEFt 616-764-8913 ext. 0168 J 4 4 b 1 l A-145

1 AppendixA UTILITY : CONSUMRS KMERCO. TOTAL TUBES PLANT : PALISADES (REPLACEMENT S. GL) TUBE MATERIAL : 1-600 MA FtuGGED 618 SGMODEL :CE EFPY 1.2 H. L TEMP (F) : 591 CL TEMP (F) : 545 DERE15 <76 76 77 78 79 50 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE R 0 DENTNG SP E o I DENTNGTS P 0 PfTTNG L 0 00 SAGA SP A 0 00 SSGA TS C 0 ID SCC TS E o I ID 800(2 0 0 FFET(PREH) 0 FRET (AVP) '617 617 FRET (LP) O HC 1-ATIGUE o ERRCORR 0 OTHER 1 1 TOTP_LN 0 O O O O O 0 0 0 0 0 0 0 0 0 0 0 0 1 618 TOTSIEVED 0 T. L. OUTAGE O UTILITY CONTACT: Tom Rezius

• ProventWW plu90ed PHOME M MRS3L 616-764-8913 ext. 0168 l

l A-146 l l x__-_--,__:--- ____._ -------_-. _ _ _ _- -- -- __n.-___ . - - - - - - -- __ .__...-_------__-__------.-------__._--_u__-_ - , . - _ - - _ _ - - - , _ _ - - - - - - - , - - _ _ - _ _ _ - - _ _

i . l AppendixA l UTILITY . ARIZONAPUBUCSERVCECO. TOTALTUBES : 22,024 1

PLANT PALO VERDE 1 TUBE MATERIAL

1-600 MA PLUGGED 323 SGMODEL  : CE-80 EFPY 4.6 H. L TEMP (F) :621 4 I

C.L TEMP (F) :565 EFENS <78 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 02 93 TOTAL WASTAGE O DENTNG SP 0 DENTNG TS 0 PITTNG 0 00 S/lGA SP 0 OD S1GA TS 9 63 72 O SCC TS 37 37 4 OEW 0 FRET (PREH) 32 4 7 11 64 FRET (AVB) 1 6 4 20 31 FRET (LP) 2 19 6 27 j HC FATGE O ERRCORA 0 OMR *34 13 8 2 45 102 TOTPLUGGED 0 0 0 0 0 0 0 0 0 34 0 0 46 0 20 0 0 41 182 323 TOT SLEEVED 0 T. L. OUTAGE 1 1 UTLITY CONTACT: Kevin Sweeney

• Baseline PHOME M.8eER; (602) 393-5049 l

A-147

l

• 4 i I

l AppendixA UTILITY ARGONAPUBUCSERVCECO. TOTAL T110ES : 22,024 . PLANT : PALOVERDE2 TUBEMATEHIAL : 1600 MA PLUGGED: 558 SGM00EL  : CE-80 EFPY - 4.8 H. L TEMP (Q : 621 C1. TEMP (F) : 565 DEFECTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE O I DE7mNG SP O DENTNG TS 0 Pf1TNG 0 1 00 SAGA SP j. 125 125 OD SAGA TS 2 2 O SCC TS 0 ' OSCCt.R 0 FRET (PREH) 51 12 2 7 64 136 FRET (AVB) 49 100 25 174 FRET (LP) 9 5 14 l HC FATKM.lE o ERRCORR 0 011ER ,,

                                                                                                                                              *47                                                                8          52   107 TOTPLUGGED                       0      0    0             0   0   0           0      0l 0            0   47                         0                      51  61   0 110    41   0 248   558 TUTSLEEVED                                                                                                                                                                                     0 T. L. OUTAGE                                                                                                                                                                           1       0 UTILITY CONTACT: Kevin Sweenev

• Baseline PHCNEP&ASER (602) 393 5049 l

l l A-148

<   t .o a

AppendixA 5 i i l UTIUTY . ARIZONAPUELCSEFMCECO. TOTALTUBES : 22,024 l l i PLANT PALO VERDE 3 TUBE MATERIAL : 1400 MA i Piirvsm 235 SG MODEL  : CE-a0 l EFPY 4.1 H. L TEMP (F) : 621 i l C.L TEMP (F) : 565 l OE7ETS <78 76 77 78 79 80 81 82 83 84 85 86 87 88 OS 90 91 02 93 TOTAL WASTAGE o DENTNG SP 0 1 DENTNGTS 0 l PfTTNG 0 00 SAGA SP _0 00 SAGA TS 0 J O SCC TS 4 4 OSCCl2 0 CRET(PRID4 *

• 12 C 120 FRET (AVB) 8 2 13 14 37 FRETG.P) 9 3 12 K: FATIGUE o ERROORR 0 OTHER '36 1 7 10 62 TOTPLUGGED 0 0 0 0 0 0 0 0 0 0 0 36 120 0 17 0 3 23 36 235 10T SJ2EVED 0 T.L OUTAGE O UTluTY CONTACT: Kevin Sweeney
• Baseline Proventively plugged PHOPE MASOt (602) 393-5049 a

e-A-149

AppendixA i UTILITY : E0F TOTAL TUBES : 21,368 l PLANT : PALUEL1 TUBE MATERIAL : 1-600 TT l Pe t ranm 139 SGM00EL  : FRAM-68/19 EFPY , 6.1 H. L TEMP (F) : 616 C1. TEMP (F) : 559 DEFECTS 476 78 77 78 79 80 81 82 83 84 85 88 87 88 89 90 91 92 93 TOTAL WASTAGE O DENTNG SP O DENTNG TS 13 8 1 22 PfTTNG 0 00 SAGA SP 0 00 SAGA TS ( 0 0 SCC TS 1 1 2 O SCC UB 0 FRET (PREH) 0 FRET (AVB) 0 FRET (LP) 4 2 15 21 HC FATIGUE o ERRCORR 2 2 OM!R 32 22 1 13 5 19 92 TOTPLUG(M!D 0 0 0 0 0 0 0 32 0 0 0 22 1 0 20 21 27 16 0 139 TOTEEEVED 0 T. L. OUTAGE O UTILITY CONTACT: R.Comby PHOE M.MIER 1-49 22-86-78 l l A-150

i . Appendix A l UTLITY EF TOTAL TUBES : 21,368 ' PLANT PALUEL 2 TUBE MATERIAL : 1400 TT FWGGED 130 SGMODEL  : FRAM-68/19 EFPY  : 5.9 H. L TEMP (F) : 616 C1. TEMP (F) : 559 DEFECTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o DENTNG SP 0 DENTNG TS 40 40 Pf7TNG 0 00 SAGA SP 0 00 SSGA TS 0 D SCC TS 2 47 1 60 D SCC LB o FRET (PRO 4 0 FRET (AVB) 0 AU RM i 2 1 4 HC FATIGUE O ERROORR 0 OWER 9 3 3 1 5 4 11 36 TOTPLUGGED 0 0 0 0 0 0 0 0 0 0 0 4 3 3 0 94 5 12 0 130 TOTSLEEVED 0 T L.OtfTAGE O UTLITY CONTACT: R.Comby PK)PE M.MIER 149-22 es 78 i A-151 2 . -

Appendix A a UTIUTY EF TOTAL TUBES : 21,368 PLANT

• PALUEL3 TUBE MATERIAL : 1600 TT Pe t rvsT) 132 SGMODEL  : FRAM-68/19 EFPY 5.7 H. L TEMP (F) : 616 C1. TEMP (F) : 559 DERCTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o O

DENTNG SP DENTNG TS 48 2 50 0 PfTTING O OD SAGA SP OD SnGA TS 0 ' ID SCC TS 0 IDSCCl2 0 FRET (PR96 0 FRET (AVB) o i FRET (LP) 4 6 29 39 HC FATIGUE o 1 1 ERRCORR

ODER 25 15 2 42 TOTPelvvsn 0 0 0 0 0 0 0 0 25 0 0 4 0 6 78 17 0 2 0 132 TOTSLEEVED 0 T. L. OUTAGE O UTEJTY CONTACT

R.Conty PHOE MAeER. 1 49-22 86 78 A-152

i e . l Appendix A { i UTIUTY : EF TOTALTUBES : 21,368 PLANT . PALUEL 4 TUBE MATERIAL : 1600 TT P i ranm

• 166 SGMODEL  : FRAM-68/19 EFPY 5.2 H. L TEMP (F) : 616 C.L. TEMP (F) : 559 DEFECTS <76 76 77 78 79 80 81 82 83 84 05 46 87 88 89 90 91 92 93 TOTAL WASTAGE o DENTNG SP o DEmmNGTS 68 1 6 2 77 j PfTTING o l OD S5GA SP o OD SAGA TS o O SCC TS 2 1 6 9 j D SCC UB o FRET (PREH) o FRET (AVB) 1 1 FRET (LP) 1 26 27 HC FATIGUE o ERRCORR o OMiR 16 1 2 4 13 16 52 TOT pi t ranm o o o o o o o o o 16 o o 1 3 94 7 20 3 22 166 TOT SLEEVED o T. L. OUTAGE o UTLITY CONTACT: R.Comtw MODE M.MER 1 49-22-86-78 A-153

e  : AppendixA l l UTLITY EIF TOTALTUBES : 21,368 PLANT PDLY1 TUBE MATERIAL : 1-600 TT FtuGGED. 37 SGMODEL  : FRAM-68/19 EFPY . 2.4 H. L TEMP (F) : 616 f l C.L. TEMP (F) : 559 DEFETS 476 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL O WASTAGE DENTNG SP 0 DENTNG TS 0 PfrTNG 0 00 SAGA SP O 00 SAGA TS 0 0 SCC TS 0 0 SCC UB 0 FRET PREH) 0 FRET (AVB) 0 FRET (LP) 17 17 HC FATUK 0 ERACORR 0 OT e 16 4 20 TOTPLUGGED 0 0 0 0 0 0 0 0 0 0 0 0 0 16 0 17 4 0 0 37 TOT SIEVED 0 1 1 T. L. OUTAGE UTILITYCONTACT: R.Conby PHOPEMAEIER 1-40 22-86-78 A-154

Appendix A UTILITY : EE TOTAL TUBES : 21,368 PLANT PEPLY2 TUBE MATERIAL : 1690 TT PLUGGED + 4 SGMODEL  : FRAM 68/19 EFPY - 1.1 H. L TEMP (F) : 616 C1. TEMP (F) : 559 DEFE:TS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o DEPENG SP O DEPmNGTS 0 PffTING 0 OD SAGA SP 0 OD S4GA TS 0 0 SCC TS 0 0 SCC (2 0 FRET (PREH) 0 FRET (AVB) 0 FRET (LP) 0 HC FATOUE o ERRCORR 0 On8R 4 4 TOTPLUGGED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 0 0 0 4 TUTE.EENED 0 - T. L OUTAGE o UTLITY CONTACT: R.Comtw PtOPEMASER 1 49 22-06-78 ( A-155

_ .__..__._.m. . . _ _ . . - . . _ _ . - . _ _ . . .- Appendix A UTLITY KERMGWTNERK TOTAL TUBES : 16.424 PHLIPPS8URG GrreH PLANT : PHluPPSBURG-2 TUBE MATERIAL : 1-800 pi i rracn. O SG m  : KWU 54S EFPY  : 7.6 H.L TEMP (F) : 622 C1. TEMP (F) : 557 DEFECTS <78 78 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL l WASTAGE o l OENTNG SP 0 l DENTNG15 0 l PfTTING 0 l 00 MGA SP 0 OD MGA TS 0 0 SCC 75 0 0SCCL2 0 FRET (PREH) 0 FRET (AVB) 0 FRET (LP) 0 C FATIGLE o ENivU mN 0

m. O TUI RUGE!D 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TOTS.EEVED 0 T.L OUTAGE 0 UTLITY CONTACT: S. Oder / R. Bouecho PHOMEMA41ER 49-9131 18-2077 / 40 9131 18-9410 l

l 1 l A-156

I Appendix A UTILITY : CNTARIOlfrDRO TOTALTUBES : 31,200 PLANT . PICKERNG-A1 TUBE MATERIAL : MONEL 400 PLDGGED 13 SGMODEL  : B&W CANADA EFPY  : 14.5 H. L TEMP (F) : 559 C.L TEMP (F) : 480 GiFENS <76 78 77 78 79 80 81 82 83 84 SS 88 87 88 89 90 91 92 93 TOTAL WASTAGE o DENTNG SP 0 DENTNGTS - 0 PfTTNG S 8 OD SAGA SP 0 OD SAGA TS 0 0 SCC TS 0 I D SCC UB 0 FRET (PREH) 0 FRET (AVB) 0 FRET LP) 0 HC FATERJE 0 ) ERhwm 0 l OMR 1 3 1 5 TOTPLUGMD 0 0 0 0 0 0 0 0 0 1 0 0 3 0 0 0 0 0 9 13 l TOTSLBMD , 0 , T. L. OUTAGE O UTRJTYCONTACT: C. C. Maruoka P&OE P&AEER (418) 692-5868 l l l a e A-157

I i+ Appendix A l l I UTILITY ONTAFuoHYDRO TOTAL TUBES : 31.200 PLANT PICKERING-A 2 TUBE MATERLAL : MONEL 400 Pi i ransn

• 3 SG MODEL  : B&W CANADA EFPY  : 13.9 H. L TEMP (F) : 559 CL TEMP (F) : 480 DEFECTS <76 76 77 78 79 to 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o 4 DENTNG SP 0 DENTNG TS 0 PfTTNG 0 OD SAGA SP 0 OD SAGA TS 0 ID M TS 0 10 SCC UB 0 FRET (PREH) 0 FRET (AVB) 0 FRET (LP) O HC FATIGUE 0 EF6vuruM 1 1 OT> Eft 1 1 2 TOTPLL cn 1 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 3 TOT 3.EENED 0 T. L. OUTAGE 0 UTILITY CONTACT: C. C. Maruska P>OEMAGER (416) 692-5668 A-158 l

Appendix A UTILITY ONTAROHYDRO TOTALTUBES : 31,200 PLANT PICKERING-A 3 TUBE MATERIAL : MONEL 400 PLUGGED

• 1 SGMCML  : B&W CANADA EFPY  : 15.3 H. L TEMP (F) : 559 C1. TEMP (F) : 480 DEFECTS <76 76 77 78 70 80 81 82 83 84 85 86 87 88 89 90 91 92 03 TOTAL WASTAGE o DENTNG SP 0 DENTN3TS 0 PITTING 0 00 SMGA SP 0 00 SAGA TS 0 D SCC TS 0 DSCCL2 0 FRET (PREH) 0 FRET (AVB) 0 FRET (LP) 1 1 HC FATIGUE O ERRCORR 0 OMR 0 TOTPLUGGED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 TOTSLEEVED 0 T. L. OUTAGE 1 1 UTILITY CONTACT: C. C. Maruska l

PKNE MAEER (416) 592-5688 l l A-159 l l

Appendix A UTILITY

• ONTARCHYDRO TOTAL TUBES . 31.200 PLANT , PICKERING A4 TUBE MATERW. : MC,NEL 400 PLUGGED 0 SGM00EL  : B&W CANADA EFPY  : 14.6 H. L TEMP (F) : 559 CL TEMP (F) : 480 DEFECTS <76 78 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o DENTNG SP O DENTNGTS 0 PfTTNG 0 00 SAGA SP 0 OD SnGA TS 0 0 SCC TS 0 USCCLB C FRET (PREH) 0 FRET (AVB) 0_

, FRET (LP) 0 HC FATIGJE o ERRCORR 0 OnER 0 TOTPU m 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TOT 3.EEVED 0 T. L. OUTAGE o UTLITY CONTACT: C. C. Maruska PHCN!MA41ER (416) 592-5668 A-160

b . l 1 1 AppendixA j l l i UTILITY : ONTAFeO HYDRO TOTALTUBES : 30,878 PLANT : PICKERNG85 TUGE MATERIAL : MONEL 400 Pt e 1924 SGM00EL  : B&W CANADA EFPY  : 8.3 H. L TEMP (F) : 554 C.L. TEMP (F) : 480 (MFENS <78 78 77 78 79 80 81 82 43 84 45 88 87 88 89 90 91 92 93 TOTAL WASTAGE o DENTNG SP 0 DENTNG TS 0 MTTNG 233 1891 1924 00 S4GA SP 0 OD S4GA TS 0 D SCC TS 0 0 SCC UB 0 FRET (M4EH) 0 FRET (AVB) 0 l FRET (LP) 0 HC FATIGUE o ERRCom o OH!R 0 TOT AJ m 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 233 1891 0 1924 TOTE.EENE O T. L OUTAGE 1 1 2 4 UTUTY CONTACT: C. C. Warunks FHOEPAMIER (4181 892-5888 , l i A-161 4

Appendix A UTILITY . ONTAROHYDFO TOTAL TUBES : 30,876 l PLANT PICKERNG-B 6 TUBE hMTERIAL : MONEL 400 l PLUGGED 4 SG h00EL  : B&W CANADA EFPY 8.3 H. L TEMP (F) : 554 C.L. TEMP (F) . 480 DENCIS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE O DENTNG SP 0 DENTNG TS 0 1 1 PITTNG 00 S1GA SP O 00 S/1GA TS 0 0 SCC TS 0 0 SCC UB o FRET (PREH) 0 FRET (AVB) 0 FRET (LP) 0 HC FATK1JE o ERACORR 0 OTMR 3 3 TOT PLUGGED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 4 TOT SLEEVED 0 T.L OUTAGE o LTTIUTY CONTACT: C. C. Marvska PHONEMA4lER (416) 502 5668 A-162

e < l l l Appendix A UTILITY . ONTARIOHfDRO TOTALTUBES : 30,876 PLANT . PICKERNG 87 TUBE MATERLAL : MONEL 400 PLUGGED: 0 SGMCOEL  : B&W CANADA EFPY  : 7.9 H. L TEMP (F) : 554 C.L TEMP (F) : 480 ERCIS <76 76 77 78 79 80 81 82 83 84 86 86 87 88 89 90 91 02 93 TOTAL WASTAGE o OENTNG SP 0 DENTNG TS 0 PfTTING 0 ) 00 SAGA SP 0 00 SAGA TS 0 0 SCC TS 0 D SCC (8 0 FRET (PREH) 0 FRET (AVB) 0 FRET (LP) 0 HC FATRIE o ERRCORR 0 OHR 0 TOTPLUGGED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 l TOTILEEVED 0 T. L. OUTAGE O 4 UTLITY CONTACT: C. C. Maruska PKNiP4 AMER: (416) 592-5668 I A-163

_ = . . ~ . , - AppendixA UTLITY : ONTAROHYDR3 TOTAL TUBES : 30,876 PLANT : PICKERING48 TUBE MATERIAL : MONEL 400 PLUGGED 21 SGM00EL  : B&W CANADA EFPY  : 6.9 H. L TEMP (F) : 554 C1. TEMP (F) : 480 78 77 78 79 43 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL DERCTS <76 o WASTAGE 0 DENTNG SP _ 0 DENTNG13 0 PfTTNG 0 00 SAGA SP 0 OD SAGA TS 0 10 SCC TS 0 10 SCC UB 0 FRET C ') 0 FRET (AVB) 0 FRET A.P) 0 FC FATIS E EHhwm o ODER 11 to 21 . TOT PJ_N 0 0 0 0 0 0 0 0 0 0 0 0 0 11 0 0 0 0 10 21 TOTSLEEVED 0 T. L OUTAGE 0 UTLITY CONTACT: C. C. Maruska PHOPEps amsst (416) 502-5668

                                                                                                                         )

A-164

o o 4 e

Appendix A t

! UTluTY : WISCONSN EUiCTRC POWER TOTALTUBES : 6,520 PLANT : POINT BEACH 1 (ORIGINAL S. G.) TUBE MATERIAL : 1600 MA l Pa t rvam: 905 SGWEEL  : W-44 i. EFPY  : 9.2 H. L TEMP (F) : 597 l CL TEMP (F) : 542 , I I DERCTS <78 78 77 78 79 80 81 82 83 84 85 88 87 88 89 90 91 92 93 TOTAL l l WASTAGE 187 1 1 1 8 178 l DENTM SP 10 1 11 l OENTING TS 0 ) PfTTING R 0 l 00 SAGA SP 180 5 E 185 OD S1GA TS 3 10 271 110 20 59 P 473 0 SCC TS L 0 0 SCC UB A 0 A4ET(PREH) C 0 FRET (AVB) E O FRET EP) 2 11 D 13 HC FATI(RJE O EM 0 0H34 18 14 12 3 47 TOTPit raram 385 0 14 13 200 123 21 79 0 0 0 0 0 0 0 0 0 0 0 905 l l 10TREEVED 13 13 T.L OUTAGE 1 1 3 4 9 UTUTY CONTACT: Elirabeth Sullivan PKNit& SERER 414 221 3235 A-165

Appendix A UTILITY WISCONSN EECTRC POWER TOTAL TUBES : 6,428 PLANT PONT BEACH 1 (REPACEMENT S.G.) TUBE MATERIAL : 1-600 TT PLUGG5D: 5 SGICOEL  : W-44F EFPY s.3 H. L TEMP (F) : 587 C.L. TEMP (F) : 542 77 7s 79 80 31 82 33 s4 as as 37 as 89 90 91 02 93 TOTAL DERIC15 <76 76 o WASTAGE 0 OENTNG SP 0 DENTNG TS 0 PriTNG 0 00 SAGA SP 0 00 SdGA TS 0 0 SCC TS 0 0 SCC UB O FRET %"O 2 2 FRET (AV8) 0 FRET (LP) o K:FATIGJE 0 isWmurm 2 1 3 C O' 707 P'_l m

                  -        0    0     0    0    0   0   0   0     0    2    0   0    0    1    0   0   2   0   0    S 0

TUT S.EENED o T.L OUTAGE UTLITY CONTACT: _EJrabeth Sveivan , PHOPEPAA41ER 414 221-3235 l A-166 i I___________._

Appendix A UTILITY : WEiCOPEN B.ECTFUC PCWER TOTAL TUBES : 6,520 PLANT : PONT BEACH 2 TUBE MATEREL : 1600 MA Pil m ; 622 SGMODEL  : W.44 EFPY  : 17.4 H. L TEMP (F) : 597 C.L. TEMP (F) : 541 GENC15 <78 76 77 78 79 80 81 42 83 84 85 88 87 84 89 80 91 92 93 TOTAL WASTAE 3 to 5 1 35 39 7 2 1 43 55 3 4 1 215 C9fTN3 F 2 1 3 DENfNGTS 2 2 PfTTING 0 OD SAGA SP 7 2 1 7 6 22 00 SAGA TS 1 2 9 8 to 11 17 41 21 27 109 85 25 370 0 SCC TS 0 DSCCts o F7ET(PfEH) 0 1 FRET (AVB) 1 FRET (LP) 0 HC FATUE O ERACO M 0 OD4!R 1 2 4 1 1 9 10TPO_ N 11 16 7 0 1 34 41 18 10 17 54 72 -de 25 33 117 0 85 33 622 TOTSLEEVED 3001 67 500 298 '8895 T.L OUTAGE 1 1 2 UTILITY CONTACT: Enzabeth Susiven

• 3001 tubes mth hot leg sleeve 804 tubes wth cold leg sleeve PHOPEMA4ER. 414 221 3235 i

A-167

                                                              ,-                                - -.             , ,                   .e,.-   .,    -      ,    .,                . - ,

 . .. ~ . . ..                                                                                                                _

i . . Appendix A a l l UTILITY , NORTHEMSTATEPOWERCO. TOTAL TUBES : 6,776 PLANT

• PRAIRIEISLAND1 TUBE MATERIAL : l 600 MA PLUGGED: 193 SGMJOEL  : W 51 EFPY  : 15.9 H. L. TEMP (F) : 590 C.L. TEMP (F) : 530 DEHKNS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE 4 4 3 4 5 7 4 10 1 2 44 DEPmNG SP 0 DOmNGTS 0 PTTING 0 ,

00 SAGA SP 1 1 OD SAGA TS 1 9 5 6 6 22 9 4 14 46 122 O SCC TS 0 0 SCC US 1 1 FRET (PREH) 0 FRET (AVB) 18 5 5 28 FRET (LP) 6 1 7 l HCFATKKJE o ERRCORR 0 ODGER 4 1 1 3 2 4 1 1 17 PtJ_N O O O O 6 1 26 0 18 9 16 15 31 17 0 15 17 49 0 220 plm "f271 f271 TOT Pil m 193 TOT!LEEVED 26 73 62 158 319 T.L OUTAGE 1 1 1 2 1 1 7 UTILITY CONTACT: Richard Pearson

• Total of 27 8abes retumed to sorwce PHOPEMA4ER (612) 388-1121 A-168

Electric Power Research Institute Leadership in Science and Technology Decemt er 201994 To: Steam Generator Strategic Management Project Vendors Contractors From: Robert C. Thomas l

Subject:

STEAM GENERATOR PROGRESS REPORT - REVISION 10 Enclosed is a copy of the Steam Generator Progress Report, Revision 10. This report covers steam generator performance through Decer0ber 31.1993. During the last ten years, the capacity factor loss for U.S. PWR's due to steam generator tube problems averaged 2.8 percent. In 1993, the U.S. capacity factor loss improved to 1.9 percent. There were four tube leak forced outages in the U.S. in survey plugged steam generator tubes. A total of 10,317 tubes, or .30 percent of the tubes in service, were plugged. This is approximately 30 percent more than were plugged in 1992. Steam j Generators were replaced in 1993 at North Anna 1, DOEL 3, Bugey 5, Beznau 1, and Mihama 2. Replacement steam generators have been ordered for 28 additional units. These orders indicate that the level of steam generator replacement activity will likely remain high for the next several years. RCT:bds Headquarters- 3412 Hillyww Avenue. Post Offwe Box 10412. Palo Alto. CA 94W3. USA * '415) 859-2000

• Telecopv- (4151655 2T/4 Washington Office: 1019 Naneteenth Street. NW, Sune 1000. Wastungson, % 100%, USA * (202) 872 9222
• Telecopy- (202) 29&54%

l Appendix A l UTIUTY NOFTREFN STATE POWERCO. TOTALRIBES : 6,776 PLANT . PRA!RIEISLAND2 TUBE MATERIAL : 1600 MA PLilGGED 249 SGMODEL  : W 51 EFPY  : 15.3 H. L TEMP (F) : 590 C1. TEMP (F) : 530 DEFECTS <76 76 77 78 79 80 41 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE 13 18 18 19 27 12 24 5 7 29 10 1 183 DEPmNG SP _, O DENTNGTS .O I PfTTING 0 00 S/tGA SP 0 OD SAGA TS 0 0 SCC TS 1 1 D SCC LB 0 FRET (PREH) 0 FRET (AVB) 23 6 6 4 39 FRET (LP) 4 4 HC FATIGUE O CARCORR 1 1 ODER 1 1 3 1 3 1 11 21 TOTPLUGED 0 0 1 0 0 18 42 27 20 33 19 24 0 $ 8 29 0 11 12 249 TOT SLEEVED l 0 l T.L OUTAGE 1 1 l i l UTUTY CONTACT: Richard Pearson Pt0EldMEFt (612) 388 1121 l l i A-169 4

. . - _ _ . . . . . . _ . . ~ . _ . _ _ _ . _ . _ . _ . _ _ . _ _ _ _ _ . _ . . _ _ . _ . _ . _ _ _ _ _ _ _ _ _ _ ___ _ AppendixA UTILITY SACRAMENTO MUNCIPAL UTIL. DIST. TOTALTUBES : 15.547 PLANT RANCHOSEDO TUBE MATERIAL : 1-600 PLUGGED 221 SGM008. :OTSG EFPY  : H. L TEMP (F) : 608 C.L. TEMP (F) : 556 DER CTS <76 76 77 78 79 80 81 82 83 84 85 86 87 $$ 89 90 91 92 93 TOTAL WASTAGE o DENTNG SP O DENTNG TS 0 PITTNG S 0 OD S4GA SP 4 H 4 00 SnGA TS 9 U 9 O SCC TS T 0 0 SCC UB D 0 FRET (PREH) 0 0 FRET (AVB) W 0 FRET (LP) N O HC FATIGtK 0 ERRCORR 0 ORER 24 3 12 3 29 30 83 16 200 TOTR.UGGED 0 0 24 0 0 3 4 21 0 3 29 38 83 to 0 0 0 0 0 221 5 TUTEIEVED 508 508 T.L OUTAGE 1 1 1 3 6 UTILfTY CONTACT: Jim Field PHOPE MAGER (209) 333-2935 i 1 A-170

e a i i

Appendix A UTLITY : SWEDISHSTATE POWERBOARD TOTALTUBES : 10,164 j PLANT : RNGHALS 2 (ORIGONAL S. G.) TUBE MATERIAL : 1600 PLUGGED' 1752 SGMODEL  : W 51 l

l EFPY - 8.0 H. L TEMP (F) : 609 ! C1. TEMP (F) : 556 i l DER CTS <78 78 77 78 79 80 81 82 83 84 85 88 87 '48 89 90 91 92 93 TOTAL WASTAGE o DENTNG SP 1 1 1 1 4 DENTNG TS 0 ] i PfTTNG R 0 OD SAGA SP E o OD SAGA TS 3 53 71 309 248 108 59 510 P 1361 j O SCC TS to 1 2 11 15 1 L 40 i OSCCLB 2 3 1 A 6 l FRET (PREH) C 0 ) FRET (AVB) 1 1 1 1 1 E 5 FRET (LP) D 0 HC FATIGUE o ERRCOM 0 ODER 230 1 64 1 12 10 3 2 8 5 336 TOTPLUGGED 0 0 230 2 67 2 3 64 83 324 254 122 83 518 0 0 0 0 0 1752 TOT!LEEVED 35 50 596 554 1235 T.L. OUTAGE 2 2 3 2 1 10 UTILITY CONTACT: Jan Enostrom PHOMEMASER (08) 739-5000 A-171

 ~ . . . .   . _ . - . , _ .             .-     -       . - _      _ - . . . _ .-, .... - _-_ ..-__ _._._                                        _______ _ _ _ _ _ _ _ _ _               ___

o e AppendixA UTUTY SWEDISHSTATEPOWERBCMAD TOTAL TUBES : 15,390 PLANT : RINGHALS 2 (REPLACEMENT S.G.) TUBE MATERML : 1690 TT PLUGGED: o SGMODEL :KWU EFPY  : 3.0 H. L TEMP (F) : 613 CL TEMP (F) : 548 DERETS 476 76 77 78 79 to 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o DEMH3 SP o DF erNGTS o PfTTNG o OD SAGA SP o OD 84GA TS o O SCC TS o O SCC LB o FRET (PREH) o FRET (AVB) o FRET (LP) o HC FATIGUE o ERRCORR 0 OM!R o TOTPLUGGED o o o o o o o o o o o o o o o o o o o o TOT SLEEVED o T.L OUTAGE o UTIUTYCONTACT: Jan Enamrom PHOPE M amust (08) 739 5000 I

                                                                                                                                                                                             )

A-172

___ .. _ _ . _._ . _ _ _ . _ _ _ ___ _ _ . ._ _ . _ _ _ ~ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ a e j i 1 l s f l Appendix A

'                                                                                                                                                                                                               l i

i l

\

UTIUTY : SWEDSH STATE PCWER BOMO TOTALTUBES : 14,022

PLANT

RNGHALS 3 TUBE MATERIAL : l-600 i Pi t mm: 249 SGMODEL :WD3 i

i EFPY - 8.4 H. L TEMP (F) : 610 I CL 1EMP (F) : 543 e i EFETS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE 0 DENTN3 SP 0 } DENTNGTS 0 j PfTTNG 0 00 S4GA SP 1 1 16 3 21 l } 00 SnGA TS 0 l D SCC TS 6 3 27 42 22 4 6 110 i 080C12 4 13 11 28 i , RET (PREM 2 23 e 1 34 4 s AU(AW) 3 6 1 2 l FRET d.P) 1 2 6 9 { HC FATIGW 0

5 0 l

! ODGt 1 7 1 2 11 8 4 7 41 ) i TOT PI f_m 0 0 0 0 0 0 2 23 0 2 2 19 9 33 69 47 22 13 0 249 1 l J j TUTSEEVED ea 6e

NICNEL PLATE 10 10

! T. L OUTAGE 1 I 1 l 1 . UiluTY CONTACT: Jan Enostrom j ItOE N (08) 739 5000 l l A-173

AppendixA UTILITY . SWEDISHSTATEPOWERBOARD TOTAL TUBES : 14,022 PLANT : RINGHALS 4 TUBE MATERIAL : 1600 PLUGGED 183 SGM00EL  : W-D3 EFPY 8.0 H. L TEMP (F) : 610 C1. TEMP (F) : 543 DERC15 <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE O DENTNG SP 0 DENTNG TS 0 PfTTING 0 OD SAGA SP 0 00 S4GA TS 0 O!ICC TS 1 2 2 S S 9 6 26 37 7 99 OSCCtB 3 16 4 7 1 1 32 FRET (PREH) 2 2 FRET (AVB) 2 _2 5 1 10 FRET (LP) O HC FAY 10UE o ERACOM 0 ODER 1 3 11 12 10 1 2 40 TOT Pl.UGGED 0 0 0 0 0 0 0 0 1 4 2 5 21 20 30 17 27 46 10 183 TOTREEVED 0 1 T.L OWAGE 1 UTILITY CONTACT: Jan Enastrom PHOEMA41ER (08) 739-5000 A-174

Appendiz A UTIUTY : CAROUNA POWER & UGHT CO. TOTALTUBES : 9,642 i i PLANT : H. B. ROBINSON (ORIGINAL S. G.) TUBE MATERIAL : 1-600 MA i i PLUGGED 2290 SG MCXM1,  : W.44 j EFPY - 8.5 H. L TEMP (F) : 601 i I CL TEMP (F) : 546 1 + . I j GiRCTS <76 78 77 78 79 80 81 82 83 84 85 86 87 88 09 90 91 02 93 TOTAL WASTAGE 14 12 19 21 23 211 102 100 89 571 k OENTNG SP 0

DENTNG TS 0 PfTTING R 0 l

00 S/lGA SP 88 E 88 00 SAGA TS 70 11 300 87 800 P 1288 ] O SCC TS L 0 l

O 900 UB A 0

FRET (PREH) C 0 FRET (AVB) E o

{ FRET &P) D 0 FC FATERJE O EMCORR 0 Ont!R 377 5 3 385 TOTRi m 481 12 19 21 39 211 402 187 938 0 0 0 0 0 0 0 0 0 0 2200 TUTSu!EVED 0 T.L. OUTAGE 1 1 2 1 2 2 1 10 UTILITY CONTACT: Randy Lewis 19 0ff >(AEBEFL 919 548 7754 i A-175 I l

AppendixA UTIUTY : CAROUNA POWER & UGHT TOTAL TUBES : 9,642 l l j PLANT . H.B.ROONSON(REPLACEMENTS.G.) TUBE h44TERIAL : 1-600 TT PLUGGED. 5 SGLOOEL  : W.44F l EFPY . 6.3 H. L TEMP (F) : 604 C1. TEMP (F) : 546 l l DERCTS <76 76 77 78 79 to 81 82 83 84 SS 86 87 88 89 90 91 92 93 TOTAL 1 l WASTAGE O DENTNGSP 0 DENTNG TS 0 PfTTNG 0 OD SAGA SP O 00 SnGA TS 0 0 SCC TS 0 0SCCt2 0 FRET (PREH) 0 FRET (Ave) 0 FRET (LP) 1 1 2 4 HC FATEE 0 ERRCDRA 0 OTH!R 1 1 TOTPLUGGEDi 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 1 2 5 TOTS.EEVED 0 T.L. OUTAGE o  ; UTILITY CONTACT: Randy Lewis PHCNEPAASER 919 546 7754 l { A-176 I _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - _ _ _ _ _ _ _ - _ _

AppendixA l UTILITY : EE TOTAL TUBES : 21,368 l PLANT , SAINT.ALBAN 1 TUBE MATERIAL : 1400 TT PLUGGED 82 SGEDEL  : FRAM.68/19 EFPY  : 4.8 H. L TEMP (F) : 616 CL TEMP (F) : 559 DERCTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o DENTNG SP 0 DENTNG TS 9 14 23 PITTING 0 00 SAGA SP O 00 SMGA TS 0 0 SCC TS 1 1 D SOC LE O FRET (PREH) 0 FRET (AVB) 0 AF RM 3 3

                                                                                                                        ]

HC FAT 10UE O , EN O OMiR 7 1 1 10 36 55 10TPLUGGED 0 0 0 0 0 0 0 0 0 0 7 0 1 0 0 0 to 27 37 82 I TorstEEvEo1 0  ; T.L OUTAGE l 0 UTILITY CONTACT: R.Comty PMM.MAEER 149228678 I e A-177

                                                                                                                                                                               ....._.g...

Appendix A UTILITY : EIF TOTALTUBES : 21,368 PLANT : SANT-ALBAN 2 TUBE MATERIAL : 1-600 TT pii rusn: 299 SGM008.  : FRAM-68/19 EFPY , 4.1 H.L TEMP (F) : 616 C.L. TEMP (F) : 559 77 78 79 80 81 82 83 84 85 86 87 88 09 90 91 92 93 TOTAL DEFECTS 476 76 O WASTAGE O DENTNG SP 260 260 DENTNGTS 0 PfTTNG 0 OD SAGA SP 0 OD S/ IGA TS 1 5 6 0800 TS 0 O SOCUB O FRETf""OO 0 FRET (AVB) 1 2 3 FRET (LP) O E FATIGUE S 5 EMOORR OfER 9 1 10 5 25 TOTPLUGED o 0 0 0 0 0 0 0 0 0 0 0 10 0 267 5 10 7 0 299 0 TOT SLEEVED T. L. OUTAGE O UTILITY CONTACT: R. Comby PHOEPAASER 1 49-22 06 78 A-178

I l AppendixA l UTILITY , PUBUC SERVICE ELECTRC& GAS TOTALTlEES : 13,552 l PLANT . SALEM 1 TUBEMATERIAL : 1-600 MA PLUGGED. 508 SGMCDEL  : W 51 EFPY  : 10.0 H. L TEMP (F) : 602 CL TEMP (F) : 544 1 l DEFETS <76 76 I 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE 29 1 18 2 4 54 DENTNG SP 0 DENnNGTS 0 I PrTTING 0 00 SAGA SP 0 OD SAGA TS 0 0 SCC TS 4 1 13 18 09CCt2 1 '335 336 j FRET (PREH) 0 FRET (AVB) 4 7 13 2 26 1 FRET (LP) 1 HC FATGJE o ERACORR 1 1 9 72  ! OMR 1 30 13 2 2 12 3 TOT Pt.UGGED 1 0 30 0 0 0 0 47 0 0 0 0 3 1 363 0 29 6 28 508  ; TOT SLEEVED 0 1 T.L OUTAGE 1 1 UTLITY CONTACT: Mahesh Genek

• Proventively plu99ed VtOPEPAMIER 609-339 1872 l

i '{ A-179

Q~ U Appendix A UTIUTY PUBUC SERVCE ELECTRC & CMS TOTAL TUBES : 13,552 Pt. ANT : SALEM 2 TUBE MATERIAL : 1-600 MA PLUGGED. 478 SGMCOEL  : W 51 i EFPY - 6.9 H. L TEMP (F) : 602 4 CL TEMP (F) : 545 l DEFENS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 02 93 TOTAL WASTAGE 12 12_ 0 DENTNG SP DENTNG TS .O 1 1 PfTTNG O OD SSGA SP 00 SAGA TS 5 5 D SCC TS 1 31 32 D SCC tB 2 *334 336 FRET (PREH) 0 FRET (AVB) 3 22 7 5 37 l 1 1 FRET (LP) HC FATIGUE 0 f ERRCORA 0 04ER 1 41 2 8 2 54 TOT R.UGGED 0 0 0 0 0 0 0 0 2 42 0 0 5 336 0 39 16 0 38 478 TOTS.EEVED 0 i T. L. CUTAGE 0 LTTLITY CONTACT: Mahesh Dansk

• Preventively plugged l

PHOPE NAGER 609-339-1872 I A-180 l

Appendix A d UTLrrY SOUT)ERN CAUFORNLA EDISON TOTAL TUBES : 11,382 PLANT : SANONOFRE 1 TUDE MATERIAL : l 600 MA p t m.m 1456 f.G MCOEL  : W-27 1 EFPY 13.4 H. L TEMP (F) : 575 1 1 C.L TEMP (F) : 553 DE7 E TS <78 78 77 78 79 80 81 82 83 84 85 86 87 88 49 90 91 92 9:3 TOTAL l WASTAGE 12 6 5 1 40 2 6 17 89 DENTMISP 31 3 9 11 3 6 4 1 68 DENTNG TS 0  ! PITTNG S 0 00 SMGA SP H 0 00 EdlGA TS 21 213 21 2 3 U 260 0 SCC TS 5 147 4 1 7 157 U SCC UB D 0 FRET (PREH) 0 0 FRET (AVB) 37 87 26 3 13 23 W 189 FRET (LP) N 0 m:FATEUE O ERRCORA 0 OM 9 1 3 1 450 3 1 188 15 22 693 TOT PLUGGED 77 103 44 20 21 679 0 36 0 5 63 0 0 339 0 29 40 0 0 1456 TOT SLEEVED 6929 6929 T.L OfITAGE 3 1 1 5 UTLITY CONTACT: Al Mathony PHCNEMAGER; 714 369 9011 l l A-181

AppendixA UTILITY SOUTHEFN CAUFDFNA EDISON TOTAL TUBES : 18,700 PLANT : SAN CNOfRE 2 TUBE MATERIAL : 1600 MA PLUGGED. 646 SGMODEL  : CE-3410 EFPY  : 7.7 H. L TEMP (F) : 611 CL TEMP (F) : 553 DEREm3 <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o DENTNG SP O DENTNGTS 18 15 1 34 Pf7TNG 0 00 S/ IGA SP 0 00 S/tGA TS 0 0 SCC TS 0 0 SCC (B 0 FRET (PREM 0 FRET (AVB) 249 17 13e 44 23 10 479 FRET (LP) 2 1 3 HC FATK1JE o ERRCORR 0 OTMR 21 1 79 5 3 21 130 TOT PLUGGED 0 0 0 0 0 0 0 21 0 1 330 17 142 0 62 0 41 0 32 646 TOT R.EEVED 0 T. L. OUTAGE 1 1 1 3 UTILITY CONTACT: Al Matheny PHOPEPUaER 714 368 9011 A-182

i Appendix A i i UTILITY SOUTHERNCAUFORNMEDISON TOTAL TUBES : 18,700 PLANT : SANONOFRE3 TUBE MATERIAL : 1-600 MA PLUGGED. 614 SGMODEL  : CE 3410 EFPY  : 7.3 H. L TEMP (E) : 611 CL TEMP (F) : 553 DERCTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL l WASTAGE o DENTNG SP 0 DENTINGTS 1 5 8 14 j PITTNG 0 00 SAGA SP 0 00 SnGA TS 0 0 SCC TS 0 0 SCC UB 0 FRET (PREM 0 FRET (AVB) 234 19 177 17 21 19 487 FRET (LP) 15 23 38 HC FATIGUE o Em 0 ODER 35 2 24 1 1 3 9 75 TOTPLUGGED 0 0 0 0 0 0 0 0 35 2 258 20 0 177 0 34 0 29 59 814 TUTSLEEVED 0 T. L OUTAGE 2 2 UTLITY CONTACT: Al Matheny PH0lgp amsst 714 368 9011 1 A-183 l

~. __ . e i l Appendix A UTLITY NORTHEASTUTLITIES TOTAL TUBES . 22,054 1 PLANT . SEABROOK TUBE MATERIAL : l600 TT Pii un: 24 SGK0EL :WF EFPY  : 2.8 H L TEMP (F) : 618 I C.L TEMP (F) : 559 j l DEFECTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88- 89 90 91 92 93 TOTAL O WASTAGE DENTNG SP 0 0 DENING TS PITTING 0 00 SMGA SP O 00 SAGA TS 0 ID SCC TS 0 IDSCCLS 0 0 FRET (PREH) FRET (AVB) 4** 1 5 FRET (LP) O HC FATOK 0 ERRCORR 0 ODER 13' 6 19 TOTPtUGOED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 13 0 6 0 1 24 TOTSLEEVED 0 T. L. OUTAGE 0 UTILITY CONTACT: John Kliesiewicz

                                                                       -

• Baseline Preventively PHCNE N.ASER. 203-665 3969 A-184

i.

AppendixA

,i LTTILITY , KYUENUELECTRCPOWER TOTALTUBES : 10,146 3 PLANT : SENDAli TUBEMATERIAL : 1600 TT RUGGED: 17 SG MODEL  : MHl 51M EFPY  : 7.9 H.L TEMP (F) : 610 CL TEMP (F) : 544 DERETS <76 76 77 78 79 80 81 32 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o DENTNG SP 0 DENTNG TS 0 PfTTING 0 00 SAGA SP O 00 SMA TS 0 j 0 SCC TS 0 0 SCC (2 0 FRET (PSEH) 0 FRET (AVB) 17 17 RtET(LP) 0

C FATUUE o ERRCORR 0 ODER 0 TOTPLLm 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 17 0 0 17 TOTSIEVED 0 T.L OUTAGE o UTILITY CONTACT: H. Takamatsu PtOMEp amnt 06-4 41-ee 21 A-185

Appendix A UTILITY : KYUSHU ELECTRC POWER TOTAL TUBES : 10,146 PLANT : SENDAl 2 TUBE MATERIAL : 1600 TT PLUGGED. 19 SGM00EL  : MHI 51F EFPY  : 6.7 H. L TEMP (F) : 610 l CL TEMP (F) : 543 OER CTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL o WASTAGE 0 DENTNG SP 0 DENTNG TS 0 PffTNG 0 00 SAGA SP 0 00 SnGA TS 0 0 SCC TS 0 0SCCLB FRET (PREH) 0 FRET (AVB) 19 19 FRET (LP) 0 C FATIGJE 0 ERRCORR 0 OMR 0 TUf MIN 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 19 0 0 19 TOTEEEVED 0 T. L. OUTAGE 0 UTILITY CONTACT: H. Takamatsu PHOPOE841ER 06-441-8821 A-186

Appendix A UTLIW TDNESSEEVALLEYAUTHOFVTY TOTAL TUBES : 13.552 PLANT . SEQUOYAH1 TUBEMATERIAL 1600 MA PHt m . 181 EG N  : W 51 EFPY  : 6.1 H. L TEMP (F) : 600 C.L TEMP (F) : 546 DSECTS <76 76 77 78 79 00 81 82 83 84 85 86 67 88 89 90 91 92 93 TOTAL WASTAGE 1 3 4 DENTNG SP 0 DENTNG TS 0 l PffTNG 0 l 00 SAGA SP 2 2 00 SSGA TS 2 2 4 D SCC TS 2 68 21 91 D SCC UB 378 50 1 1 428 FRET 6HEH) 0 FRET (AVB) 1 1 1 3 FTtET RP) 3 3 HC FATIGUE o ERRCOAR 0 04 1 *9 10 R.UQ3D 0 0 0 0 0 0 0 0 0 0 376 0 0 51 0 5 76 0 37 545 L) FLU 33ED !3641' [3641 TOTPLUGGED 181 TOT 3.EFWD 0 l T. L OUTAGE o l l UTLITY CONTACT: DevW Goekhous

• 376 row 1 u-bend tubes were unplugged.

heat treated, and inspected; 12 tubes PHOPEMAER 615 751 7652 were replugged.

• 9 tubes were plugged due to  !

O SCC at dented TSP l l A-187

        . - _ _ . . _. _ ...__ _ __. _ _ _ _ . . .                                 _ . . . _ - . . _ . . _ . _ _ _ _ _ _ _ _ _ _ _                   _x. _ _         . . _ .
                                                                                                                                                               .                      s Appendix A                                                                                                                                                 --

UTILITY : TEPNESSE VALLEY AUTHORITY TOTAL TUBES : 13,552 1 PLANT . SEQUOYAH2 TUBE MATERIAL : 1600 MA P t nnsn 434 SGMODEL  : W-51 l EFPY  : 6.0 H. L TEMP (F) : 600 l CL TEMP (F) : 546 476 78 77 78 79 80 81 82 83 84 85 86 87 88 09 90 91 92 93 TOTAL DERCTS 3 12 15 WASTAGE 0 DENTNG SP 0 DENTINGTS 0 PfTTNG 1 1 00 85GA SP 1 1 00 SSGA TS 4 19 23 0 9CX:TS 24 352* 376 DSCC US O FRET C ?, 8 6 14 FRET (AVB) 1 1 FRET R.P) 0 HC FAT)(ME 0 ERROOM 2 3 OH74 1 0 0 0 0 0 24 0 352 0 18 0 38 0 434 TOTPLL N 1 0 0 0 0 1 0 TOT SLTAD 1 1 2 T. L. OUTAGE UTLITY CONTACT: David Goetcheus

• The remainder of row 1 tubes were prevenHvely plugged.

f l PHOPEPAAEIER 615 751 7652 A-188 i I , _ ~ - - - -

l Appendix A UTLITY : CAROLNA POWER & LIGHT TOTAL 1UBES : 13,734 PLANT : SHEARONHURS TUBE MATERIAL : 1400 MA l l PLUGGED. 35 SG M006.  : W D4 'l EFPY  : 5.1 H. L TEMP (F) : 620 C.L TEMP (F) : 556 CEFECTS <78 78 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o DENTNG SP 2 2 DENTNG TS 4 4 PfTTNG 0 00 SAGA SP 2 2 l OD SAGA TS 0 oscoTs 4 4 4 O SCC UB o FFET(Pf45H) 0 FRET (AVB) 7 1 8 FRET (LP) 2 2 HC FATGJE O ERRCORR 0 OHiR 7 1 2 3 13  ! TOTPLUGGED 0 0 0 0 0 0 0 0 7 0 0 0 4 10 3 2 4 2 3 35 0 TUT e ErVED ) T.L. OUTAGE l 0  ! l 1 , UTLITY CONTACT: Ran* Lewis PMDEMAEER 910-546 7754 1 A-189

AppendixA UTLITY HOUSTON UGHTNG1 POWER TOTAL TUBES : 19.456 PLANT . SOLTTH TEXAS PROJECT 1 TUBE MATERIAL : 1-600 MA PLUGGED. 88 SG h000. :WE EFPY  : 2.9 H. L TEMP (F) : 624 C1. TEMP (F) : 560 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL DEHETS <76 76 77 o WASTAGE 0 DENTNG SP 1 1 DENTNGTS 0 PITTNG 4 4 OD SMGA SP 8 8 00 S/lGA TS 10 10 O SCC TS 0 0SCCLB 1 1 FRETC'^O P, 1 1 FRET (AVB) 0 FRET (LP) o HC FATIGUE 0 ERRCORR

                                               *6          4           5                           28   35 01 6 0    0    0    0   0   0    0    6   0    4     0     5    0   0   0   0   0   0  51   66 10T M_UGGED 0

TOTSLEEVED O T. L. OUTAGE 1 UTILITY CONTACT: Ron Baker

• Shop plugged PHCNEPL841ER 512-972 8961 l

1 l l A-190 l

Appendix A UTILITY , HJUSTONLGmNG&PONER TOTALTUBES : 19,404 PLANT : SOUTH TEXAS PRCUECT 2 TUBEMATERIAL : 1400 MA R.UGGED: 18 SG MODEL :WE EFPY . 2.6 H. L TEMP (F) : 624 CL TEMP (F) : 560 DERCTS 476 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE O DENTNG SP O 00mNGTS 0 PfTTNG 0 00 S/tGA SD 0 00 SAGA TS 0 0 SCC TS 0 0 SCC UB 0 FRET (PREM 0 FRET (AVB) 1 3 4 FRET (t P) O HC FA7ME O ERRCORR 0 l OD4!R *13 1 1 TOTPt.UGGED 0 0 0 0 0 0 0 13 0 0 0 0 1l 0 0 0 1 0 3 18 TOTSLEEVED 0 T. L OUTAGE 1 O! WLITYCONTACT: Ron Baker

• Shop plugged PHJMIMAGER 512-972 8981 A-191

AppendixA UTILITY ED: TOTAL TUBES : 10,083 PLANT : SAINT 4AURENT DES EAUX B2 TUBE ETERIAL : 1600 MA PLUGGED 215 SGM00EL  : FRAM 51M EFPY  : 7.8 H. L. TEMP (F) : 613 C1. TEMP (R : 546 DEFECTS <76 76 77 78 79 80 81 82 83 84 85 86 87' 88 89 90 91 92 93 TOTAL WASTAGE o DENTNG SP 0 DENTNG TS 0 PITTNG 0 OD SAGA SP 6 6 OD SAGA TS 0 10 SCC TS 2 1 2 4 9 ID SCC UB 180 1 181 FRET (PREH) 0 FRET (Ave) 2 1 3 FRET (LP) 0 HC FAT 1GUE O ERRCORR 0 OTER 10 6 16 TUT PLUGGED 0 0 0 0 0 10 0 0 0 0 182 0 0 1 0 4 0 0 18 215 1UTSLEEVED 0 T.L. OUTAGE O LTTILITY CONTACT: R.Comby PHOPE MAEER 149228678 A-192

1 1 Appendix A i UTILITY : EF TOTAL TUBES : 10,083 i PLANT : SAINTJAURENT C4S EAUX B1 TUBE MATERIAL : 1600 MA PLUGGED: 329 SGM00EL  : FRAM 51M , EFPY  : 7.7 H. L TEMP (F) : 613 4 j C.L TEMP (F) : 546 i a j GFECTS <76 76 77 78 79 80 41 82 83 84 85 86 87 88 89 90 91 92 03 TOTAL 4  : q WASTAGE 0 l l OENTNGSP 0 ! DENTNGTS 1 1 PITTNG 0 OD SAGA SP 1 33 77 44 155 j 00 SAGA TS 3 3

O SCC TS 1 4 3 8 i DSOCl2 90 2 3 95 FRET N 0 FRET (AVB) 1 1 FRET RP) 2 3 10 15 j HC FATuJE O i ERRCORR 0 l OM!R 6 1 1 36 7 51 3 TOT PLUGGED 0 0 0 0 6 0 0 0 0 0 91 0 4 0 0 6 37 130 55 329 i

i i TOT S.EENED 0 ! T.L. OUTAGE o 1 i ] UTILITY CONTACT: R.Comtr/ PH: Nip MRER 149228678 '

l i

i. i 3 l

A-193

1 Appendix A l UTILITY : R.ORDAPOWER&UGHT TOTAL TUBES : 17,038 PLANT : ST LUCIE 1 TUBEMATERIAL : 1600 MA Pimacn: 1818 SGMCOEL  : CE 67 EFPY  : 12.8 H. L TEMP (F) : 801 C.L TEMP (F) : 542 CEFECTS 476 76 77 78 79 80 81 82 83 84 85 af 87 88 89 90 91 92 03 TOTAL WASTAGE o OENTNG SP 0 RENTNG TS 0 i PfiTING 0 00 SAGA SP 23 109 138 297 83 650 00 SAGA TS 43 152 12 207 0 SCC TS 0 M 12 0 FRET PREH) 0 FRET (AVB) 0 FRET R.P) 0 N FATIGUE o ERMORR 0 OMR 23 22 103 507 66 76 129 35 961 TOTPLUGGED 0 23 0 0 22 0 103 0 0 607 68 23 76 238 0 181 449 0 130 1818 TOTE.EEVED 0 T. L. OUTAGE 1 1 UTLITY CONTACT: G. L. Bovers l PH2EP&AEER: 407 694 4909 A-194

t e l Appendix A UTILITY : RORDA POWER & UGHT TOTAL TUBES : 16,822 PLANT : ST.LUCIE 2 TUBEMATERIAL : 1600 MA RUGGED: 467 SGMCOEL  : CE 3410 EFPY  : 8.3 H. L TEMP (F) : 601 CL TEMP (F) : 550 DEFECTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 02 93 TOTAL WASTAGE O DENTNG SP O DENTING TS 0 PITTNG 0 00 S/lGA SP 0 00 SAGA TS 8 3 11 0 SCC TS 0 0SCCLB 0 FRET (PREH) 0 FRET (AVB) 264 16 17 20 31 36 6 389 FRET (LP) O HC FATIGUE o ERACORR 0 ODER 47 19 1 67 TOT PLUGGED 0 0 0 0 0 0 0 0 47 0 264 34 18 0 20 30 0 36 9 467 TOT SLEEVED 0 T. L OUTAGE o UTLITY CONTACT: G. L. Boyers PHDPE PAAGER 407 604 4909 A-195

 . - . . - . . .         . . . . . . . - -              .   . . . - . . . - - . - . . . .                     - . - . - . ~           . - . . . . . _ . . - - . . - -            -.. ..

i AM Didix A UTLITY KEFNOMFMEF8( TOTAL TUBES : 11,972 STADE GntH PLANT STADE TUBEMATERML : 1800 PLUGGED 328 SGMODEL :KWU EFPY . 17.5 H. L TEMP (F) : 597 CL TEMP (F) : 544 DEFETS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE 1 45 118 43 9 2# 1 10 25 11 14 4 4 2 319 0 DENTNGr 0 DENTNGTS PITTNG 0 0 00 SAGA SP 00 SAGA TS 0 0 SCC TS 0 0SCCts o FRET (PREH) 0 FRET (AVB) O O FRET (LP) o HCFATKKIE EiW, WAR 0 2 1 1 0 OTHER* 3 1 1 TOTPI' m 3 0 0 0 3 45 119 43 9 24 1 18 25 12 14 4 4 1 3 328 TOTS.EEVED .l 0 T. L. O'JTAGE 1 l 1 UTLITY CONTACT: S. Oder / R h*

• 3 Tubes plug 0ed preventively 6 Tubes pu8ed for investigation PHOSEPAASEFt 49-9131-18-2077 / 49-9131 18-9410 A-1%

               -  . . .       -_          .--. . . . - . . -                _ _ . . .. - . . . . . . _ _ . - . . . . _ . . - . _ . . . .                              . . - . - - ~ _

i Appendix A i UTILITY SOUTH CAROUNA ELECTRIC & GAS TOTAL TUBES : 14,022 1 PLANT : V.C. SUMMER TUBE MATERIAL : l-600 MA l s 3 PH m: 2221 SGM00EL  : W-03 i

EFPY , 7.8 H. L TEMP (F)

619 j CL. TEMP (F) : 556 k

! DER CTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL i , WASTAGE O DENTNG SP 0 i' , DENTNG TS 0 i PfTTNG 0 i j OD SAGA SP 51 271 322 f

    % Mu n                                                                                                                                                          0 D SCC TS                                                                             164                            236 556                 279 150     377 1762

O SCC LB 4 3 7 FRET (PREH) o FRET (AVB) 0 f.

] FRET (LP) 0 j f HC FATIGUE O EFHCORR 0 OH!R 7 3 110 8 2 130 TOT PLUGGED 0 0 0 0 0 0 7 3 0 4 277 0 244 556 0 279 203 0 640 2221 TUTSLEENED 125 610 735 T. L OLMAGE 1 1 2 UTLITY CONTACT: John Frick / RoNin Kelso PH0fGS.8eER 803-345-4379 / 4065 A-197

                                                                                                                              ~ . . . . - . .~ . - - n l

Appendix A I UTILITY : VIRONA POWER TOTALTUBES : 10164 PLANT : SURRY 1 (ORIGNAL SG) TUBE MATERIAL : 1-600 MA p t ransn : 2594 SGMODEL  : W-51 EFPY  : 4.4 H. L TEMP (F) : 605 CL TEMP (F) : 536 DEFECTS <76 76 77 78 79 80 81 82 83 84 05 86 87 88 89 90 91 02 93 TOTAL WASTAGE 502 2 90 594 DENTNG SP 963 640 364 29 1996 DENTNG TS 2 2 PffTNG R 0 00 S/ IGA SP E o 00 S/lGA TS P 0 D SCC TS L 0 D SCC LB A 0 FRET (PREH) C 0 FRET (AVB) E O FRET (LP) D 0 HC FATIQUE O ERROORR 0 OtHF 2 2 . TOTPLUGED 504 963 640 366 31 90 0 0 0 0 0 0 0 0 0 0 0 0 0 1594 TOTSLEEVED 0 l T. L OUTAGE 2 6 1 9 UTLITY CONTACT: Joe Eastwood PMMMAGEFt (804) 273 2730 l f b A-198 l

i e I AppendixA UTluTY VIRONAPOWER TOTAL TUBES : 10026 PLANT : SURRY 1 (REPLACEMENT SG) TUBE MATERIAL : 1400 TT PLUGGED 14 SGMODEL  : W 51F l EFPY  : 8.4 H. L. TEMP (F) : 605 , i CL TEMP (F) : 543 (MRiCIS 476 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE O DENTNG SP 0 DENTNG TS 0 PfTTNG 0 00 S/lGA SP 0 OD SAGA TS 0 O SCC TS 0 0SCCLS 0 FRET (PREH) 0 FRET (AVB) 2 2  ! 5: RET (LP) O HC FATIGUE o ERRCORR 0 OBE!R 2 4 4 2 12 TUTPLUGWD 0 0 0 0 0 0 2 0 0 4 0 4 0 0 0 2 0 2 0 14 TUTSLEEVED o T. L. Ol1TAGE O , + i UTLITY CONTACT: Joe Eastwood PHOENLASER (804) 273-2730 I 1 I A-199

AppendixA UTILITY VIRGNA POWER TOTAL TUBES : 10164 1 1 PLANT . SURRY2(ORIGINALSG) TUBE MATERIAL : 1-600 MA PJJGGED : 2154 SGMDOEL  : W-51 EFPY , 3.8 H. L TEMP (F) : 605 CL TEMP (F) : G4h 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL DEFECIS <76 76 77 78 79 190 WASTAGE 190 1964 DENTNG F 797 809 268 _ 0 DENTNG TS 0 PfTTING R o OD SMGA SP E P 0 00 SMGA TS 0 ID SCC TS L 0 10 SCC 12 A 0 FRETS'~ O ", C O FRET (AVB) E 0 FRET (LP) D 0 HC FAT 1GUE 0 ERR 00M 0 OMR 0 0 0 0 0 0 0 0 0 0 0 0 0 2154 TUTRl m 190 797 899 268 0 0 0 70T6 7 T. L GJTAGE 4 3 UTILITY CONTACT: Joe Eastwood PHOENURSER (804) 273-2730 A-200

e - o a AppendixA 4 5 4 i UTILITY . WIGNAPOWER TOTAL TUBES : 10026 PLANT ' SURRY2(REPLACEMENTSG) TUBE MATERIAL : 1600 TT

  ~

PLUGGED: 5 SG MODEL  : W 51F EFPY 9.2 H. L TEMP (F) : 605 , l i CL TEMP (F) : 543 i -_= ! 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 DEFETIS <76 91 92 93 TOTAL 4 WASTAGE o l 4 DENTNG SP O j DENTNG TS 0 j WM 0 2 OD SAGA SP 0 ! OD SAGA TS 0 j O SCC TS 0 } OSCCLB 0 t FRET (PfEH) 0 i -' FRET (AVB) 2 2 FRET (LP) 1 1 HC FATGJE 0 ERRCORR 0 OMiR 2 1* 3 R.UGCED 0 0 0 0 0 2 0 0 0 0 0 2 0 0 0 0 0 0 2 6 LN w GGED lil (11 TOrPLUGGED 5 TOTSLEEVED _ 0 T. L. OUTAGE 1 1 UTILITY CONTACT: Joe Eastwood

• Tube misplug9ed in 1986; ,

plug removed in 1991  ! I PHOPEPAAEIER (804) 273-2730 i l l l i 1 A-201

i Appendix A I t UTIUTY : KANSM ELECTRIC POWER TOTAL TUBES : 10,164 l l PLANT

• TAKAHAMA 1 TUBE MATERIAL : l600 MA PLUGGED 881 SGMODEL  : W 51 EFPY  : 11.1 H. L TEMP (F) : 608 l

C.L. TEMP (F) : 551 l

                             <76  76     77  78  79   80  81  82  83  84   85  86    87  88  89  90  91  92  93 TOTAL l              DEFECTS
              .AsTum          98                                                                                    98 l

DENTNG SP 0 DENTNG TS 0 PrrTNG 0 00 S4GA SP 1 7 3 2 6 7 31 56 113 00 SAGA TS 32 25 12 9 40 6 7 7 8 4 150 O SOC TS 1 5 20 45 61 52 184 l O SCC LE 31 10 55 1 1 2 1 1 6 13 17 10 148 i FRET (PREH) 0 FRET (AVB) u FRET (LP) O HC FATIGUE o iF60urm 0 OnER 186 1 1 188 TOTPLUGGID 98 0 63 35 0 253 0 11 0 42 16 16 0 11 40 60 0 100 118 881 l I TOT SLEEVED 2 4 32 59 6 1 6 3 -4 -8 81 T.L. OUTAGE 1 i UTIJTY CONTACT: H. Takamatsu PK)tE M.AEIER 06-441 8821 A-202

s i AppendixA ? k j_ UTIUTY : KANSAI ELECTRC FCWER TOTALTUBES : 10,164 ) PLANT : TAKAHAMA 2 TUBE MATERIAL : 1-600 MA

PI m .1810 SG h00EL

MHi 51 1

EFPY  : 10.6 H. L TEMP (F) : 608 4 C1. TEMP (F) : 551 DEFECTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o DENTNG SP 0 DENTNG TS .O PfTTNG 0 OD S4GA SP 143 219 30 55 19 73 539 OD SSGA TS 53 183 246 456 110 121 32 11 14 1226 ID SCC TS 0 i ID SCC UB 0 l l N(PREH) 0 FRET (AVB) 0 FRET (LP) 0 HC FATIGE o ERROOfwl 0 ODER 1 192 16 209 { PLUGCMD 0 1 0 0 0 0 196 0 402 276 456 110 121 224 0 55 46 87 0 1974 p t nnm f801 f571 f561 litel 1551 f 481 f3641 i 707 PLUGGED 1610 l TOTSAEVED 231 67 330 466 1007 1139 675 644 4425 T. L OUTAGE 1 1 2 UTILITY CONTACT: H. Takamatsu i l PtO4E PAAEIER. 06-441 8821 A-203

Appendix A UTILITY KANSAI ELECTRC POWER TOTAL TUBES : 10,146 PLANT : TAKAHAMA 3 TUBE MATERIAL : 1400 TT Pi mmn. 26 SGMODEL  : MHl 51F EFPY  : 7.4 H. L TEMP (F) : 610 C1. TEMP (F) : 543 DERCTS 476 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL O WASTAGE , O DENTNG SP 0 DENTNG TS 0 PfTTNG 0 OD SAGA SP o 00 SnGA TS 0 O SCC TS 0 0 SCC 12 0 FRET N 0 FRET (AVB) 23 2 25 l 0 l FRET (LP) l 0 HCFATIG W 0 ERRCORR 1 OMER 1 TOT W 0 0 0 0 0 0 0 0 0 1 0 0 0 0 23 0 2 0 0 26 0 TOT 5.EEVED O T. L. OUTAGE UTILITY CONTACT: H. Takamatsu PHOE MA41ER 06 441-5821 A-204 l

    . . - . .     .... -. . . - . - - .               -   .   ~ . _ _ . - . - - . .            . . . . . . -       - . . . - . _ . . . . ~ . - . . . . . _ _ -                    . ~ . . . .

e e Appendix A l UTILTTY . KANSAIELECTRICPOWER TOTAL TUBES : 10,146 l . PLANT : TAKAHAMA 4 TUBE MATERIAL : l 600 TT l I PLUGGED

• 21 SGMODEL  : MHI 51F 1

EFPY  : 7.3 H. L TEMP (F) : 610 4 7 i CL TEMP (F) : 543

DEFECTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 10TAL J

! WASTAGE O i DENTNG SP O DENTNGTS 0 i PfTTNG 0 4 00 SMGA SP 0 OD SMGA TS 0

1D SCC TS 0

ID SCC LS 0 1 l FRET (PFEH) 0 j FRET (AVB) 21 21

' FRET iP) 0 ') HC FATK1JE o k M 0 ! OMR 0 \ 1

TOfPLUGGED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 21 0 0 0 21 4

70f REEVED 0 T. L. OUTAGE O i i i

UTIUTYCONTACT

H. Takamatsu l

l I PlOMPAA4MiR 06-441 8821 j 1 A-205

 . _ . _ .   . _ - _ _ _ _ - . _         _              - _        __m. _m. . _ _ _.                    . _ _ _ . - _ _ . _ . . . _ _ _ - . _

Appendix A UTIUTY SEhD TOTAL TUBES : 10,164 PLANT TlHANGE 1 TUBE MATERIAL : 1 600 PLUGGED 371 SGMODEL  : ACLF-51 EFPY  : 14.7 H. L TEMP (F) : 611 C1. TEMP (F) : 545 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL DER CTS <76 0 WASTAGE 11 11 DENTNG SP

                                                                                                                                                                              .O DENTNG TS 0

PfTTNG 17 17 00 SAGA SP to1 181 OD SnGA TS 7 7 ID SCC TS 0 ID SCC LB O FRET (~ OO 3 51 54 FRET (AVB) 6 ! AU RM S 1 O HC FATKLIE 1 1 ERRCORR CDER 3 13 2 13 27 1 1 26 2 3 2 1 94 TOTPU M 3 13l 2 13 27 1 0 6 29 52 0 2 0 3 1 2 217 0 0 371 0 TOT 3.EEVED 1 1 1 3 T. L. OUTAGE UTRJTY CONTACT: Paul Hemaisteen PHOMEPAA41ER (02) 3820651 A-206

_. . . _ _ _ . . . - _ _ _ _ . _ _ _ _ ~ . _ _ . _ _ . . _ _ _ . ._ _ . _ . _ _ _ _ . _ _ _ _ _ . _ _ _ _ . _ _ . _ _ _ _ _ - - . - _ - _ . - - - - - - - . _ s Appendix A 1 i UTILITY NTERTM TOTAL TUBES : 10,083 l PLANT : TlHANGE 2 TUBE MATERIAL : 1400 PLUGGED 282 SGMCOEL  : FRAM51M LFPY  : 9.4 H. L TEMP (F) : 617 CL TEMP (F) : 547 (AFECTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o DENTNGSP ' O DENTNG TS 0 PITTING 0 00 SAGA SP 0 00 SAGA TS 0 D SCC TS 7 20 1 30 21 39 32 11 50 211 DSCCLB 1 1 FRET (PREH) 0 t FRET (AVB) 0 FRET (LP) 1 1 l HC FAT 1GK 0 ERRCORR 1 1 l ODER 2 2 64 68 TOT PLUGGED 0 0 0 0 0 0 0 2 0 ' 20 0 3 30 01 39 35 75 50 282 TUTSLEEVED 0 MCMEL PLATE 602 554 1156 T. L OUTAGE 1 1 UTIJTYCONTACT: Paul Hemaisteen PHOPEP&8EER (02) 3620551 A-207

           , ~ ,

Appendix A UTluTY NTERCOM TOTALTUBES : 14,592 PLANT : THANGE3 TUBEMATERIAL : 1 600 Pi i wrn - 72 SG MODEL  : ACE E EFPY  : 7.5 H. L TEMP (F) : 626 C.L TEMP (F) : 560

              <76  76    77  78  79  80  81  82  83   84   85  86    87  88  89  90   91  92  93 TOTAL DEFECTS o

WASTAGE 0 DENTNG SP 0 DENTNG TS 0 PfTTNG 0 OD SAGA SP OD SAGA TS 4 12 10 26 0 O SCC TS o 08CC UB 0 FRET (PREH) FRET (AVB) 22 3 1 26 6 6 FRET (LP) o HCFATI(ME ERRCORR 2 2 04ER 3 4 1 4 12 TOTPU w en 0 0 0 0 0 0 0 0 3 0 0 6 0 0 7 26 19 0 11 72 TOTEEEVED 0 o T.L OUTAGE UTLITY CONTACT: Paul Hemalsleen l PHOPEPAA41ER: (02) 3820551 A-208

e ss Appendix A UTILITY GENERAL PUBUC UTLmES TOTAL TUBES : 31,062 PLANT : THREE MLE ISLAND 1 TUBE MATERIAL : l-600 MA PLUGGID.1641 SGMODEL :OTSG EFPY  : 10.0 H. L TEMP (F) : 604 C.L. TEMP (F) : 554 DEFECTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL 1 WASTAGE o I DENTNG SP O DENTNG TS 0 PfTTNG 0 OD S/lGA SP 4 4 OD SAGA TS 0 ID SCC TS 331 856 3 336 64 17 8 3 1 1819 DSCC(E O FRET (PREH) 0 FRET (AVB) 0 FRET (LP) 0 HC FATlaJE 1 1 ERAC)RR 0 OTER 2 9 1 3 1 1 17 TOTFtUGGED 2 0 9 1 3 1 0 331 856 3 336 64 0 21 0 10 3 0 1 1641 TOTSLEEVED l !_ 250 252 602 T. L. OUTAGE f i 1 1 UTLITY CONTACT: Julien Abramovici PHOfEPAA41ER 201-316 7038

                                                                                                                                                           )

l 1 i A-209

Appendix A UTILITY ' HOKKADELECTRCPOWER TOTAL TUBES : 6,764 PLANT : TOMARI 1 TUBE MATERIAL : 1-600 TT PLUGGED. O SGMODEL  : MHi-51F EFPY , 3.8 H. L TEMP (F) : 613 C1. TEMP (F) : 550 DEFE:TS <78 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL o WASTAGE 0 DENTNG SP 0 DENTNG TS 0 Pf7TNG 0 00 S4GA SP 0 00 SAGA TS 0 0 SCC TS 0 0 SCC (B 0 FRET (PREH) FRET (AVB) 0 0 FRET (LP) T,FATKRJE O ERACORA 0 OMER O 0 0 0 0 0 0 0 0 0 0 0 0 0 TOTPLUGGED 0 0 0 0 0 c 0 TOTSLEEVED 0 T. L. OUTAGE o UTILITY CONTACT: H. Takamatsu l l PHOPEPAAdlER 06 441 8021 A-210

Appendix A UTIUTY HOKKADELECTRICPOWER TOTALTUBES : 6,764 PLANT TOMARI 2 TUBE MATERIAL : 1600 TT R.UGGED 0 SGMODEL  : MHl-51F i EFPY 2.1 H. L TEMP (F) : 613

CL TEMP (F)

550 4

DERETS <76 76 77 78 79 80 81 82 83 84 05 86 87 88 89 90 91 92 93 TOTAL WASTAGE o DENTNG SP 0 DENTING TS 0 PffTNG 0 00 SAGA SP 0 OD SAGA TS 0 _D SCC TS 0 D SCC UB 0 FRET (PREH) 0 FRET (AVB) 0 FRET (LP) 0 HC FATIGUE 0 ERACORR 0 OM 0 TOTPLUGGED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TOT SLEEVED 0 T. L OUTAGE - 0 UTILITYCONTACT: H. Takamatsu PH:PEPAASER 06 441-8821 l l 1 i l A-211 , 1 l

A o Appendix A UTIUTY EIF TOTAL TUBES : 10,083 PLANT : TRICASTIN 1 TUBE MATERIAL : i-600 MA PLUGGED 646 SGM308.  : FRAM 51M EFPY  : 9.6 H. L TEMP (F) : 613 CL TEMP (F) : 546 DEFECTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o DENTNG SP 0 1 1 DENTNG TS Pl*TNG 0 OD SMGA SP 0 OD SSGA TS 65 65 ID SCC TS 2 17 32 10 26 20 8 18 66 199 1 1 ID SCC (E FRET (PREH) 0 i FRET f AVB) 4 5 6 3 4 22 i FRET (LP) 3 3 68 54 39 to 1 7 1 176 HC FATIGUE O ERRCORR 0 OnER 7 1 2 1 1 3 141 17 1 8 182 TOTPLUGGED 0 0 0 7 0 0 3 0 1 2 3 21 91 71 70 177 95 30 75 646 TOTSLEEVED 0 T. L OLITAGE 0 UTIUTY CONTACT: R. Co#W PHONE MAEER: 149-22 86 7a l A-212

a. # j l

l Appendix A \ UTILITY : EN TOTALTUBES : 10,083 PLANT : TROASTIN 2 TUBE MATERIAL : 1400 MA i PLUGGED: 379 SGMODEL  : FRAM 51M l EFPY - 9.2 H. L TEMP (F) : 613 C1. TEMP (F) : 546 DERETS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o DENTNGSP O DENTNGTS 9 12 21 PfTTNG 0 00 SAGA SP 0 00 SAGA TS 3 1 1 5 O SCC TS 1 16 28 21 15 23 19 70 193 08CCt2 3 85 1 89 FRET Pf4!H) 0 FRET (AVB) 1 1 FRET (LP) 2 3 5 HC FATKRJE o ERREWWI O l ODGt 15 2 3 3 1 40 1 85 ) 70TPil m 0 0 0 15 0 0 0 0 0 8 88 19 30 21 0 24 30 72 72 379 l TUTREEVED 14* 14 T. L. OUTAGE 1 1 2 UTIUTY CONTACT: R. Corrtw

• 8 tubes r * - - -ti plugged PHOMEMASER 1 49 22 86-78 A-213

A = AppendixA UTIUTY : EEF TOTAL TUBES . 10,083 PLANT : TRICASTIN 3 TUBE MATERIAL : 1400 MA PLUGGED 633 SGKEEL  : FRAM 51M EFPY  : 9.5 H. L TEMP (F) : 613 C1. TEMP (F) : 546 i DEFECTS <78 78 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL l O WASTAGE 0 DENTNG SP DENTNGTS 12 12 l PfTTING 0 , 00 S4GA SP 0 00 S4GA TS 133 133 USCC1S 2 7 4 18 4 7 4 32 28 104 OSCCtB 89 89 2 3 183 FRET (PREM o 1 1 FRET (AVB). FRET (LP) 1 2 3 K:FATICKJE o EF#ws mM 0 OHiR 8 180 1 2 197 TOTM1 m 0 0 0 0 8 0 0 0 0 91 89 7 4 17 4 197 151 37 30 833 TOTEEEVED 0 T. L. OUTAGE o UTEJTY CONTACT: R. Comtw PHCNE N.241ER. 1 49-22 86 78 i l I l i A-214

                                              .         . . . .. .~.                            .    . . - . . - -     . _. -

Appendix A UTILITY E0F TOTAL TUBES : 10,083 PLANT : TRICASTIN 4 TUBE MATERIAL : l-600 MA PLUGGED 254 SGMODEL . FRAM 51M EFPY . 8.7 H.L TEMP (F)

• 613 CL TEMP (F) , 546 DEFECTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o DENTNG SP 0 DENTNG TS 7 2 9 PITTNG 0 00 S/lGA SP 1 1 00 S/ IGA TS 53 53 ID SCC TS 3 2 1 7 14 1 2 6 48 84 ID SCC UB 7 3 1 11 FRET (PREH) 0 FRET (AVB) 7 4 1 2 3 17 1 1 FRET (LP)

HC FATIGUE O ERRCORR 0 ODER 6 1 1 63 6 1 78 TOTPLUGGED 0 0 0 0 6 0 0 0 0 4 2 1 7 28 9 73 70 0 54 254 TOTS.EEVED 0 T. L OUTAGE O UTIUTY CONTACT: R. Corrby PHDEPL8AlER 1-49 22-86 78 l l l A-215

Appendix A UTILITY : A. N. TRILLO 1 TOTAL TUBES : 12,258 PLANT t TRt.LO 1 TUBEMATERIAL : 1800 PLUGGED 9 SGMODEL  : KWU 54GT EFPY 4.5 H. L TEMP (F) : 619 CL TEMP (F) : 561 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL DEFECTS 476 76 0 WASTAGE 0 DENTNG SP 0 DENTNGTS 0 PITTNG o OD S/lGA SP 0 OD S/lGA TS 0 ID SCC TS 0 10 SCC L2 0 FRET C 0 0 FRET (AVB) 4 4 FRET (LP) O HQ FATK1JE 0 ERRCORR 4 4 1 9 OMiFI 0 0 0 0 0 0 0 0 0 0 4 0 0 0 0 1 0 0 13 DL1XMED 0 f 4,1 (41 UNFU WE 9 TOT PLUGGED 0 TOT SLEEVED O T L. OUTAGE UTILITY CONTACT: Gustavo BoEni

• This tube was puued and four plugs were also removed.

PHONEM.44BER 34 1-6516700 l A-216

Appendix A UTILITY : PORTLANDGENERALELECTHC TOTAL TUBES :13,552 PLANT : TRCMAN TUBE MATERIAL : 1600 MA PLUGGED: 2444 SGMODEL  : W 51 EFPY

• 8.2 H. L TEMP (F) : 615 C.L TEMP (F) : 552 DERCTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o DENTNG SP 0 DEPTTNG TS S 0 PffTNG 3 3 3 3 H 12 00 SAGA SP 146 123 1542 U 1811 OD SAGA TS 2 7 40 27 14 T 85 l D SCC TS 56 2 13 D 71 O SOC W 9 10 333 1 36 1 7 10 0 407 j FRETNPREH) W 0 FRET (AVB) N 0 FRET (LP) 0 HC FATIGUE O ERRCORR 0 OHiR 1 53 3 1 Se 70Te e nnsn 0 0 0 1 9 63 333 0 0 7 3 41 1 14 245 147' 1580 2444 l

TUT 3.EEVED 2 1061 1063 T.L OUTAGE 1 1 1 3 UTLITY CONTACT: Groo Kent

• Two tubes, poviously plugged.

were motored to service via sleeving PKN!MAEER: 503 556 7716 in 1990. A-217

_.......-_._...._p.. . _ . _ _ . . _ AppendixA UTILITY : JAPAN ELECTRC POWER COMPANY TOTAL TUBES : 13,528 PLANT : TSURUGA 2 TUBE MATERIAL : i-600 TT PLUGGED 2 SGMODEL  : M4151FA EFPY  : 5.7 H. L TEMP (F) : 612 CL TEMP (F) : 552 DERCTS 476 76 77 78 79 80 81 82 83 d5 86 87 88 89 90 91 02 93 TOTAL WASTAGE O DENTNG SP 0 DENTNG TS 0 PfTTNG 0 00 SAGA SP 0 OD MGA TS 0 0 SCC TS 0 0 SCCLB C FRET (PREH) 0 I FRET (AVB) 2 2 l FRET (LP) 0 HC FATISE 0 ERR (DRR 0 OMR 0 TOTPLUGGED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 2 707S.EENED 0 T.L OUTAGE 0 UTLITY CONTACT: H. Takamstou PHONENuneER 06 441 8821 1 A-218 l l l l _ --

Appendix A UTLfiY : FLORDAPOWER &UGHT TOTAL TUBES : 9780 PLANT : TURKEYPOWT3(ORIGIONALS.G.) YUBE MATERIAL : 1-600 MA PLUGGED: 1986 SG h00EL  : W-44 EFPY 5.2 H. L TEMP (F) : 602 C.L. TEMP (F) : 546 DEFE15 <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE 51 40 21 112 OENTNG SP 136 604 1 690 259 59 1749 09mNGTS 0 R 0 PfTTNG_ OD S4GA SP E O OD G4GA TS 34 P 34 D SCC TS L 0 0800 UB 88 A 88 F7ET 09tE)6 C 0 FRET (AVB) E o FRET (LP) D 0 m FATIGlK , O ERRCOfR 1 1 OMR 2 2 TOTPU N 34 275 604 2 730 200 61 0 0 0 0 0 0 0 0 0 0 0 0 1986 TOTE]!EVED o T.L OUTAGE 1 5 1 1 8 UTLITYOONTACT: G L BOYERS PFOPEPEneER 407 694 4009 l l 1 A-219 _ _ _ , _, . , . . _ - - . , , , , , . . w. -- n

AppendixA UTLITY , FLORIDAPOWER&UGHT TOTAL TUBES : 9642 (REPLACEMENT) PLANT : TURKEYPONT3(REPLACEMENTS.G.) TUBEMATERIAL : 1-600 TT PLUGGED 82 SGMODEL  : W.44F EFPY  : 7.3 H. L TEMP (F) : 602 C1. TEMP (F) : 546 DEFE15 476 78 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o DENTNG SP 0 DENTNG TS 0 PfTTNG 0 OD SAGA SP 0 OD SoGA TS 0 0 SCCTS 0 0 SCC LB o FRET PREH) 0

FRETfAVB) 7 3 to I FRET (LP) O HC FATIGUE o i

EFinism 0 OWER 39 4 1 4 4 52 TOTPLUGGED I O O O O O O 0 39 0 0 4 0 1 0 0 11 0 7 0 62 TOTSLEEVED 0 T. L. OUTAGE o UTLITY CONTACT: G.L Bowes PHOEPAASER 407 694 4909 A-220

_ . _ . . . . _ _ . . . _ . _ . . _ . _ . . . _ _ _ _ . _ ~ _ _ _ _ _ _ _ _ . _ _ . _ _ _ . _ l AppendixA 4 i j UTILITY FLOROMPOWER&UGHT TOTALTUBES : 9780 l PLANT : TUREY POWT 4 (ORIGONAL S.G.) TUBE MATERML : 1400 MA , Pirwun: 2351 SGEDEL  : W-44 EFPY  : 5.9 H.L TEMP (F) : 602 1 CL TEMP (F) : 546 ] q (EFECTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL ]' WASTAGE 5 21 6 39 71 (MNTNGSP 5 52 629 510 179 267 93 1735 { osmNGTS 0 9 PfTTNG A 0 f 00 SMGA SP E O OD SMGA TS 159 P 159 l D SCC TS L 0 l DSCCLE 294 A 294 FRETPREM C 0 ) FRET (AVB) E o l FRET (LP) 0 0 HC FATXLIE 0

ERRCDRR 0 j ODER 2 11 79 92

, TOT PLUGGED 164 351 629 531 185 308 104 79 0 0 0 0 0 0 0 0 0 0 0 2351 i i TOTSLEEVED 0 2 T.L OUTAGE 3 6 5 1 1 16 i UTLITY CONTACT: G. L Bowers i 3 PKNEPAABER 407 694 4909 i 1 I A-221 i

    '                                                                                                       ^

a s l l l 1 l l Appendix A l l l UTILITY : FLORDA POWER & UGHT TOTAL TUBES : 9,642 PLANT . TURKEYPONT4(REPLACEMENTS.O.) TUBEMATERIAL : 1600 TT PLUGGED: 33 SGMOCEL  : W-44F EFPY  : 6.1 H. L. TEMP (F) : 602 i CL TEMP (F) : 546 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL DERETS <76 76 O WASTAGE 0 DENTNGSP 1 1 4 DENTNGTS 1 0 PfTTNG 0 l 00 SAGA SP 0 oo SnGA TS 0 0 SCC TS 0 4 O SCC LB O FRETS = , 0 I FRET (AVB) o FRET (LP) o

HC FATEE 0

M 31 1 32 OnER 0 0 0 0 0 0 0 0 31 0 0 0 0 1 0 0 1 0 0 33 TUT M_t_wanen 0 TUT SLET o T. L. OUTAGE UTLTTY CONTACT: G. L. Bovers l 407 694 4909 PHCNitAAEMiR 1 A-222 l l

• A Appendix A UTILITY : KOREA EliCTRC POWERCO. TOTAL TUBES : 9,990 PLANT ; UUIN 1 TUBEMATERIAL : l-600 TT PLUGGED. O SGMOCEL  : FRAM 51 B EFPY  : 4.3 H. L TEMP (F) : 613 C1. TEMP (F) : 546 DERETS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o DENTNG SP 0

DENTNG TS 0 PITTNG 0 00 SiGA SP 0 00 S/lGA TS 0 10 SCC TS 0 10 SCC UB 0 FRET (PREH) 0 FRET (AVB) 0 FRET (LP) 0 HC FATIGJE o ERRCORR 0 OHR 0 TOTPLUGGED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 C TOT SLEEVED , T. L. CUTAGE UTKJTY CONTACT: _KYOUNG SM JANG PHONEMAEER: 822 550-4940 A-223

AppendixA UTLITY , MDFEAELECTRICPCMERCO. TOTALTUBES : 9,990 PLANT ULilN 2 TUBE MATERIAL : 1400 TT PLUGGED 0 SGMODEL  : FRAM 51 B EFPY  : 3.4 H. L TEMP (F) : 613 CL TEMP (F) : 546 DERICIS <76 76 77 78 79 to 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o DENTNG SP o DENT 1NGTS o PfTTING o 00 SAGA SP o 00 SnGA TS o D SCCTS o DSCCLB o FRET (PREH) o FRET (AVB) o FRETC_P) o HC FATIGUE _ o EFR OORR .. o H .+. O TOTpr i rwasn - l 3,, o o o o o o o o o o o o o o o o o TUT 3.EEVED I T.L OUTAGE l UTLITY CONTACT: KYOUNG-SIKJANG MOMEp ampst 822 560-4940 l l A-224 _ _ _ _ _ _ _ _ _ _ _ ..J

Appendix A UTIUTY : KERNKRAFTW9K TOTAL TUBES : 16,084 LNTERVESER GrrtH PLANT : LNTERAESER TUBE MATERIAL : l-800 RUGGED' 0 SGMODEL :KWU l EFPY  : 12.1 H. L TEMP (F) : 604 1 l C1. TEMP (F) : 548 l DERCTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL l WASTAGE 0 OENTNG SP 0 a DENTNGTS 0 PITTNG 0 00 S4GA SP 0 00 84GA TS 0 0 SCCTS 0 0 SCC UB 0 FRET (PREH) 0 FRET (AVB) 0 FRET G.P) 0 HC FATIGUE O ERRO)RR 0 onER 0 70Tpe_t wacn 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TOTStEEVED 0 T. t.. OtfrAGE o UTIUTY CONTACT: S. Oder / R. Bouecke PH3E M ams4L 49 9131-18-2077 / 49 9131-18-9410 l l 1 t A-225

a . l Appendix A UTILITY , A. N. V. TOTAL 1UBES : 16,878 DLANT VAPOELLOS 2 TUBE MATERIAL I400 TT FLUGGED 217 SGMODEL :WF EFPY - 4.7 H. L. TEMP (F) : 620 CL TEMP (F) : 557 DEFECTS <76 78 77 78 70 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o DENTNG SP 0 DENTNG TS o PrTTNG 0 00 SAGA SP 0 OD SSGA TS 0 0 SCC TS 0 0 SCC UB 0 FRET (PREH) 0 FRET (AVB) 30 54 88 30 202 FRET (LP) 0 HC FATIGUE o ERACORR 0 OnER 11 1 2 1 15 TOTPLUGGED 0 0 0 0 0 0 0 0 0 0 0 11 0 0 31 54 90 30 1 217 TOTSLEEVED 0 T.L OUTAGE O UTLITY CONTACT: Gustavo Bollini PHJfE POSER 34-1-8516700 l l r A-226

 < o l

l Appendix A l UTIUTY GEORGRPOMR TOTALTUBES : 22,504 PLANT : VOGTLE1 TUBE MATERIAL : 1600 TT PLUGGED

• 15 SG h000.  : W-F EFPY . 6.4 H. L TEMP (F) : 618 1

C.L TEMP (F) : 557 DEFETS <78 76 77 78 79 80 81 82 8b 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o DENTNG SP 0 ) DENTNG TS 0 l PfTTNG 0 00 SMGA SP 0 00 SAGA TS 0 tD SCC TS 0 l ID SCC ts 0 FRET PREH) 0 FRET (AVB) 0 FRET (LP) 0 ic r%T10UE O Em 0 OW *6 1 4 4 15 , TOTPLUGGED 0 0 0 0 0 0 0 0 0 0 6 0 0 1 0 4 0 0 4 15 TOTSLEEVED 0 T. L OUTAGE o a J l a UTluTYCONTACT: Forrest Hundley

• Shop Plugged i 1

PHONE NUMBER 205 870 6998  ! i 4 1 l l A-227

- - . _ _ . . - ~ - ~ - . . . . . . - . . -- ._ __. . W UA UTILITY : GEDRGAPOWE71 TOTAL TUBES : 22,504 PLANT : V0GTLE2 TUBE MATERIAL : 1-600 TT PLUGGED- 15 SGMODEL :WF EFPY  : 3.9 H. L TEMP (F) : 618 C1. TEMP (F) : 557 IM7ETS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL O WASTAGE 0 DENTNG SP 0 DENTNGTS Pf7TNG 0 O 00 SAGA SP OD SAGA TS 0 0 SCC TS 0 DSCCt2 0 FRET (PREH) 0 FRET (AVB) 0 FRET (LP) 0 C FATHRJE O Einwem 0 OM71 *13 2 15 TUTPilmacn 0 0 0 0 0 0 0 0 0 0 0 13 2 0 0 0 0 0 0 15 TUTSEEVED l 0 T.L OUTAGE l 0 UTILITYCONTACT: Forrest Hundley

• Shop plugged PHCPEPHEER 205-870-6998 l

A-228

Appendix A UTILITY : ENTERGYOP9%TIONS TOTALTUBES  : 18,700 PLANT : WATERF0F03 TUBE MATERIAL : l-600 MA Pi m . 518 SGMCDEL  : CE 3410 EFPY  : 5.5 H. L TEMP (F)  : 804 CL TEMP (F)  : 552 (BETS <78 78 77 78 79 80 81 82 83 84 85 88 87 88 89 90 91 92 93 TOTAL WASTAGE o DENTNG SP O DENTNGTS 0 PfTTING 0 OD SAGA SP 0 00 SnGA TS 0 0 SCC TS 0 0SCCLS ' O FRET (PREH) 0 FRET (AVB) 298* 1 3 19 15e* 7 484 FRET LP) 0 HC FATIGlK 0 ERRCORR 0 OH!R 25 9 34 TOTPLUGWID 0 0 0 0 0 0 0 0 25 0 298 0 1 3 19 0 165 7 0 518 TOTSLEEVED 0 T. L OUTAGE O tmLITYCONTACT: Mike Lawton

• Preventively plug 9ed ItDEl4AEER 504 464 3454 9

4 f A-229

AppendixA UTILITY : TONESSEVALLEVAUTHORITY TOTAL TUBES : 18,696 PLANT : WATTS BAR 1 TUBE MATERIAL : 1-600 MA Pi i rwwn, 8 SGMODEL  : W D3 EFPY  : 0.0 H. L TEMP (F) : 617 C1. TEMP (F) . 559 78 77 78 79 80 81 82 83 84 05 88 87 88 89 90 91 92 93 TOTAL OEFECTS <76 o WASTAGE 0 OENTNG y 0 DENTNGTS 0 PfTTNG O OD S4GA SP 0 OD SnGA TS 0 10 SCC TS 0 ID SCC (B 0 FRET C 3 0 FRET (AVB) O FRET iP) 0 E FATHXK 0 ERACORR 4 8 One 3 1 TOTPLUGGED 0 0 0 0 0 0 0 0 3 0 0 4 0 0 0 1 0 0 0 8 i 0 TOT 3.EEVED ' o T. L. OUTAGE UTR.fiY CONTACT: David Goelcheus PHOPEPAASEFt 615-751 7852 l I i A-230 , I I l

   . . . -.    .            .         -. _ . . - . ~ . - -              _-.     . . - - - . _       .          . - . . .             -

s s Appendix A . I i i i a j UTILITY : TONESSEEVALLEYMJTHORfTY TOTALTUBES : 18,696 4 i PLANT : WATTS BAR 2 TUBE MATERIAL : 1-600 MA i

PLUGGED

5 SGMODEL  : W D3 1

l EFPY . 0.0 H. L TEMP (F) : 617 I C.L. TEMP (F) : 559 f. , DERC15 <76 76 77 78 79 80 81 82 83 84 e5 86 87 88 89 90 91 92 93 TOTAL f WASTAGE O ) DENTNG SP 0 1 1' DENTNG TS 0 I j PITTING 0 00 SAGA SP 0 l l j NMM S 0 j 10 SCC TS 0 , 1- i l 10 SCC LES 0 l FRET (PREH) 0 I ( FRET (AVB) 0 l l FRET (LP) O a

HC FATIGUE o i

! iiif,wif, 0 OTHER 3 2 5 TOTPLUGEiD 0 0 0 0 0 0 0 0 3 0 0 0 2 0 0 0 0 0 0 5 1 I , TOTSLEEVED 0 I 1 T.L OUTAGE O UTILITY CONTACT: Dodd Goolcheus PHald! MASER 615 751-7652 A-231

x . AppendixA UTILITY . VCN00 TOTALTUBES : 22,504 PLANT : V G.FQEEK TU9E MATERLAL : 1-600 TT PLUGGED 44 SGh00EL  : W-F EFPY  : 6.4 H. L TEMP (F) : 618 C.L. TEMP (F) : 555 DERCTS 476 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL O WASTAGE 0 DENTNG SP 0 DENTNG TS 0 PITTNG 0 00 S4GA SP 0 00 SnGA TS 0 0 SCC TS 0_ 0SCCLS 0 FRET W ") FRET (AVB) 19 2 5 26 0 FRET (LP) l O HC FATKKJE 0 ERRCORR OTHFR 15 3 18 TOTPLUGGED 0 0 0 0 0 0 0 0 0 15 0 0 0 22 0 2 0 0 5 44 TOTSLEEVED 0 0 T. L OUTAGE UTLITY CONTACT: Gary Penderarass / Glen Seier PHONEMASER 316 364 8831 l i A-232 l

  .~, _

l Appendix A I j 1 l i UTILITY : KOREA EECTHC POWERCO. TOTALTUBES : 14,232 1 PLANT : WCUiUNG 1 TUBE MATERIAL : 1400 M i PH m ' 7 SGMODEL  : FOS /WH(CANDU) EFPY  : 9.0 H.L TEMP (F) : 590 C.L. TEMP (F) : 512 DERCTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o DENTNG 8P O DENTNGTS 0 PfTTING 0 00 SAGA SP 0 00 SAGA T5 o O SCC TS 0 CSCCt2 0 FRET (Pfee o FRET (AVB) 0 FRET LP) 0 HC FATUK 0 ERNMJnN 0 OBER 7* 7 TOTPLUGED 0 0 0 0 0 0 0 7 0 0 0 0 0 0 0 0 0 0 0 7 TUTS.EEVED T. L. OUTAGE UTIUTY CONTACT: KYOUNGLSIK JANG

• 3 plug 9ed W shop,4 pkgyd a PSI l PHODE M.MEL 822 550-4940 a

4 l 5 t I I A-233 l

Appendix A UTILITY : YAPEEE ATOMC TOTAL TUBES : 6,480 PLANT YNEEE RDWE TUBE MATERIAL : 304 SS R1GGED, 334 SGMCOEL  : W 13 EFPY  : 22.0 H. L TEMP (F) : 550 CL TEMP (F) : 496 DEFE;TS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL o WASTAGE 0 00mNG SP 0 DE>mNGTS PfTTING 66 2 16 30 3 9 123 1 58 8 17 332 S 0 00 SAGA SP 00 SMGA TS H 0 iD SCC TS U 0 lD SCC LB 2 T 2 FRET (PREH) D 0 FRET (AVB) 0 0 FRET (LP) W 0 HC FATKME N O ERACORR 0 On4R 0 TOTPLUGGED 66 2 15 30 0 0 3 9 0 123 1 0 60 8 0 17 0 334 TOTSLEEVED 0 T. L. OUTAGE O UTILITY CONTACT: J. K. Thayer PHDPEPAAGER 508 779 6711 A-234

i % AppendixA UTILITY : MOREA ELECTRC POWERCO.* TOTALTUBES : 16,878 PLANT . WINGGWANG1 TUBE MATERIAL : 1600 TT PLUGGED

• 47 SGM00EL :WF EFPY . 6.0 H. L TEMP (F) : 619 C.L. TEMP (F) : 556 DEFECTS <76 78 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o DENTNGSP O DENTNG TS 0 PfTTNG 0 00 SAGA SP 0 OD SAGA TS 0 0 SCCTS 0 0 SCC 12 0 FRET (PREH) 0 FRET (AVB) 2 1 4 1 5 2 4 19 FRET (LP) 0 HC FATK1JE o ERRCORR 0 OTHR 25 2 1 28 TOTPLUGGED 0 0 0 0 0 0 0 0 0 0 25 0 2 1 6 1 5 2 6 47 TOTSLEEVED 0 T. L. OUTAGE O UTILTTY CONTACT: KYOUNGSM JANG PHCPEMAGER 822 550-4940

, A-235

a , AppendixA UTILITY , KOREAELECTRCPOWERCo. TOTALTUBES : 16,878 PLANT : WlNGGWANG2 TUBE MATERIAL : 1600 TT Pe msn. 49 SGMODEL  : W-F EFPY - 5.8 H. L TEMP (F) : 619 C.L. TEMP (F) : 556 i DGECTS <76 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL WASTAGE o DENTNG SP 0 j DENTNG TS 0 PnTwG 0 OD S4GA SP 0 00 SAGA TS 0 0 SCC TS o OSCCLB 0 FRET (PREH) 0 FRET (AVB) 6 11 2 8 13 40 FRET (LP) O HC FATIGUE O EF6wAA 0 OMR 9 9 TOT PI_Lrwsn 0 0 0 0 0 0 0 0 0 0 0 9 0 0 6 11 2 8 13 49 TOT 5.EkW 0 T. L. OUTAGE o UTILITY CONTACT: KYOUNG-SSC JANG PHOPEMAGER 822 550-4940 l l l l A-236

 - ._j Appendix A UTIUTY : NTH EDBON                                                                    TOTAL TUBES : 13,552 PLANT : 210N 1                                                                        TLEE MATERIAL : l 600 MA PLUGGFD; 948                                                                          S3MODEL             : W 51 EFPY     : 11.7                                                                       H. L TEMP (F) : 591 C1. TEMP (F) : 530 (EFE15        <76   76    77   78        79          80           81          82          83          84      85   86    87   88     89  90  91      92  93 TOTAL WASTAGE                                                               2         24             3            2   9     7        12                      4       63 DENTDG 55                                                                                                                                                        0 DENTNG75                                                                                                                                                         0 PfTTING                                                                                                                                                          0 00 SAGA SP                                                                                                                     11                               11 00 8AGA TS                                                                      12          to          37     64    75               se              29  20  325 O SCCTS                                                                                                                                               18  19   37 OSCCLS                                                              19 377                                                                                    396 FRET (PREH)                                                                                                                                                      0 FRET fAVB)                                                            4         53                                    1                1               2   1   62 FRET (LP)                                                                                                                                                        0 HC FATIGlK                                                                                                                                                       0 h                                                                                                                                                                0 OH74                                                                  2           7           e                 1              13     24                   1   54 10f pii rinsn   0     0      0   0            0           0        27 '473                  28          39     74    83    0   36     94   0   0      53  41  948 1

TOTE.EEVID 128 47 445 125 61 806 T. L OUTAGE 1 1 i l UTIUTY CONTACT: John Biomaron PKPEPAMEFL 708 663 7215 A-237

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4, i AppendixA J i UTIUTY : OCMAONWEALTH EDEiON TOTALTUBES : 13,552 PLANT : DON 2 TUBE MATERIAL : 1600 MA PLUGGED 525 SGMODEL  : W 51 EFPY  : 11.8 H. L TEMP (F) : 691 CL TEMP (F) : 530 l CERC15 476 78 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 TOTAL 4 WASTAGE 2 1 1 2 8 2 18 l 0 l OENTNGSP 1 0 ,! DENTNGTS PffTNG 0 1 1 OD SAGA SP 00 SnGA TS 7 3 7 1 18 O SCC TB 16 249 1 17 101 384 OSCCl2 2 1 3 2 6 28 29 71 FRET (PREH) 0 FRET (AVB) 11 7 4 2 3 27 FRET (LP) 6 6 HC FATiaJE o ERRCORR 0 on4R 1 1 2 TUTPLUGED 0 0 0 0 0 0 13 0 15 6 4 0 27 272 7 47 0 134 0 525 TOTE.EEVED 82 170 252 1 1 T. L. OUTAGE UTIUTY CONTACT: John Blomoren PHOPEPAASER 708 663-7215 A-238}}