ML20066K359

Rev 0 to Rept on 1990 Eddy Current Exams of TMI-1 OTSG Tubing

ML20066K359
Person / Time
Site:	Three Mile Island
Issue date:	01/31/1991
From:	Jandovitz J, Torborg M GENERAL PUBLIC UTILITIES CORP.
To:
Shared Package
ML20066K353	List: ML20066K351 ML20066K359
References
NUDOCS 9102050282
Download: ML20066K359 (92)

Text

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REPORT ON THE 1990 EDDY CURRENT EXAMINATIONS 01" THE TMI-1 OTSO TUDING I

l Prepared Dy ./ ,#

MarkT.Torborg[

Approved By N d hn / andov [

910205026:2 910131 lDR ADOC.K 050002G9 PDR ATTI.TDR

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Attachment 1 8 Revision 0 l Page 2 4

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j. TABLE OF CONTENTS l

PAGE NO.

1 l I. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . 4 1

i II. METHODS. . . . . . . . . . . . . . . . . . . . . . . . . . . 5 l

III. OUTAGE BR EXAMINATION CATEGORIES AND RESULTS . . . . . . . . 10 i' A. EXAMINATIONS REQUIRED BY T.S. 4.19 . . . . . . . . . . . 10

1. Degraded Tubee . . . , , . . . . . . . . . . . . . . 10

) 2. Tech. Spec. Random Samples . . . . . . . . . . . . . 14 1

, D. CPUN ELECTIVE EXAMINATIONS . . . . . . . . . . . . . . . 16 i 1. Tubes with Indications Not Confirmed by 8x1. . . . . 16

! 2. Lane / Wedge Tubes . . . . . . . . . . . . . . . . . . 18

3. Tuben with S/N Indications . . . . . . . . . . . . . 20

4. Mechanical Cleaning Baseline . . . . . . . . . . . . 21 B. Extra. . . . . . . . . . ' . . . . . . . . . . . . , . 22 C. DISCUSSION OF RESULTS. . . . . . . . . . . . . . . . . . 23 4

IV. OUTAGE 801 EXAMINATION CATEGORIES AND RESULTS. . . . . . . . 31 A. TUDES. SUSPECTED AS LEAKERS . . . . . . . . . . . . . . . 31 B. LANE / WEDGE . . . . . . . . . . . . . . . . . . . . . . . 33 C. DISOUESION OF RESULTS. . . . . . . . . - . . . . . . . . . 34 V. CONCLUSION 3. . . . . . . . . . . . . . . . . . . . . . . . . 36

VI. REFERENCES . . . . . . . . . . . . . . . . . . - . . . . . . . 37 Figure II-1 _ TMI-1 OTSG Outline . . . . . . . . . . . . . . . . . 9 Figure III-1 OTSG A Tubes Examined 8R . . . . . . . .. . . . . . . 25 Figurn III-2 OTSG B Tubes Examined 8R . . . . . . . . . . . . . . 26 Figure III-3 Distribution of Indications By Axial Locations . , . 27 Figure III-4 Indication RateslBy Region . . . . . . . . . . . . . 28 i Figure III-5 Distribution Of Indications By Percent Thru Wall . . 29 Figure III-6 Distribution Of Indicatione By Amplitude .. 30 Figure IV-1 OTSG A, Tubes Examined Outage 8U1. . . . . . . . .. 35

-Table 1 Comparison Of Indications In Degraded Tubes. . . . . 12 Table 2 Comparison Of Statistical Evaluation To Previous Evaluations 13-1 ATTI.TDR

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j TABLE OF CONTENTS (Continued) j Appendix I DDA-4 AnalyLts Codes . . . . . . . . . . . . . . . . 46 l j Appendix II Comparison of Previous Exam Results. . . . . . . . . 60

Appendix III Tubes Plugged During Outege BR . . . . . . . . . . . 74 j I

Appendix IV Tubes With Indications >2C? Through Wall. . . . . . . 77 l Appendix V Tubec Plugged During Outage 801. . . . . . . . . . . 95 j Appendix VI Outline of Data Analyst Indoctrination . . . . . . . 97 i.

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Attachment 1

. Revision 0 Page 4 I. INTRODUCTION a

During January 1990, while TMI-1 was shut down for Refueling Outage BR, GPUN performed Eddy current (ECT) examinations of the tubing in the once Through Lteam Generators (OTSGs). The examinations were required by Technical Specification 4.19 (Reference 1), and GPUN engineering requirements.

Following the completion of the scheduled examinations on February 1, 1990 and the return to power on March 4, 1990, the unit was removed from service on March 6, 1990 due to a tube leak in OTSG A. During this unscheduled shutdown (designated BU1) additional examinations of the tubing in OTSG A were performed, i During outage BR, a total of 2210 tubes in OTSG A and 992 tubes in OTSO D were examined. Based on these examinations, five tubes in OTSG A and three tubes in CTSG B were removed from service by plugging.

During the Oatage BU1 examinations, a total of 419 tubes were examined in OTSO A. This includes 417 lane / lane wedge tubes and two tubes which were examined as suspected leakers. Following the completion of these examinations, two tubes were removed from service by plugging. No examinations were performed in OTSG D during this outage.

'This-report was prepared to catisfy the reporting requirements of Technical Specification 4.19.5.b (Reference 1). The data was extracted from GPUN TDR 102b (Reference 15).

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. Revision 0 Page 5 II. METHODS EDDY CURRENT AQUISITION SYSTEM The ECT examinations were performed using the same basic techniques which were used during the 11'T-7R examinations. These techniques were initially qualified for use at THI in 1982 (References 2 & 3) and have been refined and upgraded during subsequent outages. For 1990-8R and 8U1, the only significant change was the use of the .510" diameter bobbin probe for screening indications for further evaluation using the .540" diameter bobbin probe.

This change was made to reduce the incidence of " stuck" probes, which, in the past has accounted for significant radiation exposure to personnel. The basis for using the .510" is documented in Reference 11.

For outage BR, the data aquisition system included the Zetec Mit 18 Digital Eddy Current System and the B&W " ROGER" in-head manipulator. In Outage 8UI, the data aquisition system (Mit 18) was used in conjunction with a Zetec SM3-10 in-head fixture.

While the use of different in-head fixtures requires a different configuration for data aquisition, the recorded eddy current data is unchanged.

PROBES The BR and 801 ECT examinations were performed using Zetec probes. The probe types and uses included:

Bobbin Coil - Two sizes of bobbin coil probes were used. The .540" diameter (A-540-LC/NF/M/HF) probe was used to examine all tubes with previously identified indications. This includes tubes in the ISI, S/N and 8x1ACC data sets. (See Section III for data set descriptions). The .540" probe was also used to confirm indications recorded as 20% through wall or greater by the

.510" bobbin coil probe.

.The .510" diameter bobbin coil probes (A-510-LC/NF/M/HF and A-520-M/ TBS /HF) were used to examine tubes with no previous indications. Data sets examined with the .510" probe include the 3%-TS, 6%-TS and lane / wedge tubes.

All three of the above bobbin coil probes have the came electrical characteristics. The A-540-LC/NF/M/HF and A-510-LC/NF/M/HF probes are identical except for the probe diameters. The A-520-M/ TBS /HF probe uses the same coils as the LC probes but has a stainless steel nose and tail piece in place of Delrin plastic. The centor section, which houses the ECT coils, is Delrin plastic on all three probes; therefore, the eddy current characteristics are not affected by the body change. The metal body probe was used in an attempt to increase probe life thereby reducing personnel exposure and improving data consistency. No major improvement was noted and the LC type probes were used for most of the examinations.

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Attachm3nt 1 Revision 0 Page 6 8x1-ABS - The Zetec 8x1 Absolute probe was used to examine the lane and lane / wedge tubes from the 14th T.S.P. to the kinetic expanelon zone in the upper tubesheet. This probe was also used to confirm indications screened by the bobbin coil probes. The specific probe used was the Zetec BC-5240-555- ,

l A0187.

HRPC - The Zetec Motorized Rotating Pancake Probes (MRPC) were used to examine specific areas of tubing screened by the bobbin or 8xl-ABS probes. The MRPC probe used for the tubing examinations was a Zetec Model B-510-MRPC/PH with a

.125" diameter coil.

TECHNIQUES The following is a summary of the examination metnods used. The detailed procedures are contained in THI-1 Surveillance Procedure 1300-4D (Reference 4).

• Dual Examination Method, for the un-expanded portion of tube

• Bobbin Coil Abeolute Method, for the detection of wear

• Motorized Rotating Pancake Probe, (MRPC) for the characterization of select indications Dual Examination Method The portion o' tubing between the roll expansion in the lower tubesheet and the kinetic expansion in the upper tubenheet le examined using the Dual Examination Method which GPUN developed and qualified in 1982 (Reference 2). This technique consists of examining the tubes using the bobbin coil ( 540" or .510" diameter) to screen indicetions for further evaluations. Tubes with indications requiring further anelysis are then examined using the 8x1 absolute technique to determine if the indications are relevant and to determine the circumf6rential extent. For confirmed indications, the characterization and disposition of the tubes are based on the following:

Percent.Through Wall - Based on phase analysis of the bobbin coil probe.

If the tube le to remain in service, the percent through wall is based on the .540" probe results.

Circumferential Extent - Based on number of 8x1 coile.

Signal Voltage - Bneed on Bobbin Coll.

Axial Location - Based on Bobbin Coll.

Wear Examinationet The examination for the detection of gradual, outer diameter tube wear is performed during the Bobbin Coil examinations. This is

.done by operating one channel of the multi-frequency ECT . instrument in the 200 KHz absolute mode. The use of the absolute. mode permite detection of gradual changes in the tube wall which cannot be detected during a differential examination. Indications which appear only in the absolute channel are therefore screened as possible wear. The suspect area is then examined using the 8x1 absolute probe to provide additional data.

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Attachment 1 I Raviolon 0 Page 7 Motorired Rotating Pancake Prtbe MRPCs In addition to the dual examination method, the MRPC probe was used to examine tubce with quostionable indications. This probe provides a three dittensional (C-Scan) dieplay of the examination area and provides a d1 tailed insitu characterization of defects.

EXAMINATION EXTENT The Bobbin Coil probe is used to examine the un-expanded length of the tube f rom 'he lower roll transition in the lower tubesheet to the kinetic expaneton trancition in the upper tubenheet. Although Technical Speelfication 4.19 j

requires the examination of only the portion of tubing between the secondary faces of the upper and lower tubenheets, all of the inepeeted tubes were examined over the entire un-expanded longth.

RECORDING OF INDICATIONS When analyzing the eddy current data, various indications are recorded by the data entlyet. These inuications fall into two basic groupe, indications which require additional evaluatione and indications which do not require additional

evaluations. A complete list of all abbreviatione and definitions used to j claselfy indicatione le included as Appendix 7.

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} Indications Which Require Additional Evaluations: Indications which are l recorded as 40% T.W. or greater, ADR, DTS or DSS are all re-examined using the j

8x1 Absolute Probe to determine if they are relevant indications and must be dispositioned.

Indications of 20-39% T.W. or S/N are considered relevant indicatione and are monitored during future examinations but do not require I

additional evaluations using the 8x1 Absolute probe. (See Appendix i).

Indications Which Do Not Require Additional Evaluacienst Indicatione Such an IDC, DNT, DNG and PVN are reccrded for information only und do not regulre a follow-up 8x1 Absolute examination. (See Appendix I).

Indication Locations: The locations of the ECT indications are secorded to identify their " elevation" or " axial location" in the OTSGs. For free span f' indicatione the locationn are recorded in inches above "+" the tubeeheet surfaces or tube support plate center. For indicatione located within or adjacent to the tube support plates, the indicat ione are recorded ae "+" or

" " from the center of the T.S.P. The relative locativ.s of the t,ubecheets and tube support plates (T.S.P.) are shown in Figure 11-1.

DATA ANALYSIS PROCESS The data analysis process in based on the recommendations of the EPRI, PWR Steam Generator Inspection Guidelines. (Reference 7). The process included the use of written interpretation guidelines, which are filed with the examination data; site specific training and testing; and independent two party analysis of the data.

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1 Attachment 1 Reviston 0 Page 0 The data analysis process was performed by personnel qualified snd certified to at least Level IIA, in accordance with the ECT centractor's approved programs. As a supplement to this qualificatien, site specific indoctrination and training was attended by all data ana}yst p trnonnel. The program included both clateroom lectutes and hands on practice sing eddy current data and <

experience from both TMI and another LiW desinned plant. The training covered [

generic OTSG degradation mechanisms atd examination ruthods and also specifically addressed both the Bobbin (nil an' 8xl Absolute methode which are used at TMI. ,

The total indoctrination process encompassed approximately 16 hours1.851852e-4 days <br />0.00444 hours <br />2.645503e-5 weeks <br />6.088e-6 months <br /> ard was conducted by the designated lead analyst. At the completion of the indoctrination, each data analyst was required to pass a performance demonstration for each method to be analyr.ed. Appendix VI is an outline of the program.

Data Analysis sequence k The data analysis process was performed in accorda go with the same guidelines used for the data analyst indoctrination and training. The data analysis process was performed in three (3) parts with at least two (2) separate data analysts evaluating 100% of the Dobbin Coil and 8x1-ABS data for each tube.

The data analysis process included:

1. Primary Analysis: The primary analysis included a 100% evaluation of the ECT data and the recording of all attributes identified in Appendix I. This analysis included recording the phase angle, percent through wall, voltage, circumferential extent and location of the indications.

2. secondary Analysis: The secondary analysis also included a 100%

review of the ECT data for the attributes identified in Appendix I.

This analysis, performed as a blind review, was performed in the same manner as the primary analysis. l

3. Official Results: To complete the analysis process, the results of both the primary and secondary analyses are reviewed by the designated lead analyst. This review combines the primary and secondary analyst's results and also resolves any discrepancies.

The data analysis of the MRPC data is considered a specialised examination and the process varies from the production analysis process. The evaluation of '

the data from the MRPC examinations of the tubing was done either by a Level IIA or Level III data analyst. No additional reviews were required for these evaluations because of the focuood area under evaluation.

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. R3 vision 0 Pago 10 III. OUTAGE BR EXAMINATION CATEGORIES AND RESULTS The locations of the tubes examined during Outage BR are shown on Figures III-1 and 111-2. The examinations were performed in two major groups, based on the examination requirement.

A. Examinations Required by Technical Specification 4.19 B. GPUN Elective Examinations These groups are further divided into specific categories of tubes. This  ?

section defines the examination ocope, purpose and examination results by category. Whoo assifying the tubes by. examination category, some tubes may satisfy the crir tia for more than one category. In those cases, the tube is placed into the first catogory which appl!.es following the sequence of this report. The sequence accounts for variations in tube counts as shown in categories such ac 3-2 and B-4, where some of the tubes were previously included ao Category A-1 tub ^s.

A. EXAMINATIONS RCQUIRED BY TECHNICAL SPECIFICATION 4.19 A-1 PREVIOUSLY DEGRADED TUC(S Data Sets: ISI Probe: .540" - Bobbin Extent: Full Length SCOPE In OTSC 'A', 262 tubes were examined.

In OTS3 'B', 26 tubes were examined.

REA6Un FOR EXAMINATICN The examination of the " Degraded *- tubes serves a dual purpose. First, new examination results are ,impared to the r4 ults of previous examinations to determine if there is-evidente af an activw degradation mechanism occurring in the OTSGs. .Second, the examination provides assurance that no tubes with indtcations exceeding the plugging criteria remain in service.

INCLUDED TUDES

The " Degraded Tube" population was selected to meet the requirements of Tech.

S pec. 4.19.2.a.1. This population consists of All irservice tubes which had confirmed indications of 20% through wall or greater identified during any previous examinations.

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Revision 0 Pags 11 RESULTS The results of tha BR examinations of the " Degraded" tubes were consistent

.with previous examination results. The majority of the previously identified indications showed no evidence of change from previous examinations. In three cases however, the reported % through wall values exceeded the established plugging criteria and the tubes were removed from service.

OTSG A Three (3) tubes (T-3-25, A-4-28, A-104-121) hat indications of >40% through wall in the freespan portion of the tube and were removed from service by plugging. The indications in these tubes were a' .1-coil in circumferential extent.

OTSG B No indications >40% through wall were recorded.

TRENDING OF I.D. INDICATIONS To monitor for evidence of continuing degradation of identified indications, the 1990-8R examination results were compared to the 1988-7R. The indications included in this comparison were previously recorded indications with through wall values of 16% or greater in both 1990-8R and 1988-7R. The breakdown of the indications is shown in Table 1 and Appendix II.

In "A" OTSG, 167 in ications met the above criteria. The mean change in the indications was 0.0% of wall thickness between 7R and 8R (standard deviation 7.bst of wall). The amplitude of these indications showed a mean change of

-0.26 volts (standard deviation 0.36 volts).

In "B" OTSG, 29 indications met the criteria. The average change in the indications was +2.3% of wall thickness between 7R and OR (standard deviation 5.76% of wall). The amplitude of these indications showed a mean change of

-0.17 volts (standard deviation 0.19 volts).

When combined, the average change per ladication for both OTSGs was +0.2% of wall (standard deviation 7.43% of wall). The nean amplitude change was -0.25 volta (standard deviation 0.35 volts).

To determine the significance oi these changes, the data was compared to similar evaluations performed during previous examinations. Based on this comparison (see Table 2) in which the mean change has been both positive and negative, the identified changes are considered to be within the qualified repeatability of the ECT process, and do not indicate a trend of ongoing degradation. This variability is discussed in Reference 3.

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• Revision 0 Page li TABLE 1 COMPARISON OF INDICATIONS IN DEGRADED TUBES NUMBER OF TUBES OTSG A OTSG B- TOTAL Degraded hbe Population 262 26 288 Included in ';omparison

• 167 22 189 Excluded from Coaparison ** 95 4 99

• Comparison includes only indications >16% T.W. in 7R and BR.

• • Excluded indications are primarily threshold level indications which were below the recording threshold or recorded as S/N indications in either 7R.or BR.

No. Inds No. Inds No. Inds Mean Std Number  % T.W. T.W.  % T.W. Change Deviation ,

Indica- Increased Decreased Unchanged  % T.W.  % T.W.

OTSG tions 7R-8R 7R-8R 7R-8R 7R-88 7R-BR A 262 99 101 62 0.0 7.55 B 29 15 7 7 +2.3 5.76  !

Both 291 114 108 69 +0.2 7.43 A&B No. Inds No. Inds No. Inds. Mean Std Number Volts - Volta Volta Change DeviatLo*'

Indica- Increased Decreased Unchanged Volte Volts OTSG tion 7R-8R 7R-8R- 7R-8R- 7R-BR 7R-8R

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A 262 29 231 2- -0.26 0.36 4

0 29 =3 26 0 -0.17 0.'19 Both 291 32 257 2 -0.25 0.35 A&B.

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• Revision 0 Page 13 TABLE 2 COMPARISON OF STATISTICAL EVALUATION TO PREVIOUS EVALUATIONS Number Mean STD Mean STD Indica- Change Deviation Change Deviation Period tions  % T.W.  % T.W. Volta Volta 1984/1986-5M 152 -2.6 6.1 -0.2 0.3 1986-5M/1986-6R 118 +1.1 6.6 0.0 0.2 1986-6R/1988-7R 119 +2.6 5.5 +0.2 0.3 1988-/R/1990-8R 291 +0.2 7.43 -0.25 0.35 1986-5M data extracted from GPUN TDR 781, Revision 1 (Reference 8).

1986-6R data extracted from GPUN TDR 839, Revision 0 (Reference 9),

1988-7R data extracted from GPUN TDR 935, Revision 0 (Reference 10).

NOTE For outages 1984 through 1988-7R, all indications were examined with both the 8x1-ABS and .540" bobbin coil probes and only indications >20%

T.W. and confirmed by both probee were included. For 1990-8R, all indications >16% T.W. were included, which accounts for the increased number of indications.

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i' Revision 0 Page 14 A TECH. SPEC. RANDOM SAMPLES-Data Sets: 3%-TS, 6%-TS Probe .510" Bobbin Extent Full Length -j i

%-':- l L SCOPE  !

.In-0TSG'"A",-1406 tubes were examined.

d In OTSG "B", 468 tubes were examined.

REASON FOR EXAMINATION The tubet in this sample have.no history of degradation below the kinetic expansion.' .They are examined to monitor the overall condition of the steam generator tubing..

g INCLUDED TUBES The initial sample included at.least 3% of all the' tubes in each OTSG.- As

- required by T.S.: 4.19.2.a.2, at least 50% of the tubes-were located in the outer, periphery of the OTSG which is an area where experience has indicated potential problems. .(The outer periphery is defined as the tubes located-outside the radius of the-outer; support rods). Tne remainder of the tubes were. selected to provide a representative sample of theftube. bundle.' The

samples were selected to include tubes which have not been examined since the 1984 examinations. ._

-As'a' result of' examinations of the " Degraded Tubes", an additional sample of 16%'was examined in OTSG.A. The tubes for this sample were also biased towards Lthe. periphery lof--the OTSG, since the tubes which forced the expanded sample j

.f were in this-' area.

'RESULTS1 OTSG A-

"i In-0TSG A,'the examination of-the'3%-TS sample did not reveal any indications of 20%.T.W. or. greater. The examination of the " Degraded. Tubes" did however, requireLthe-examination of an'additiona1 6%-TS 7 sample.: Nofindications of.20%; .l h T.W. or greater were11dentified in this. sample.. The examinations.(3%-Tsiand j

[* ~ 6%-TS) did result in two: tubes ( A-17-62 :and ' A-150-24) being screened - for distorted support plate signals, which were then determined to be non-relevant  ;

based:on!the 8x1-ABS probe. LIn addition,-'one tube ( A-59-72)' had a low

/~ amplitu'de (S/N) in'ication d recorded'and will'be monitored;during'the next examination..

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~* Revision O Page 15 OTSG B In the OTSG B, the examination of the 3% sample resulted in six tubes being screened for indications exceeding 20% through wall. Of these six indications, five were between 20 and 40% through wall and one tube had a 63%

through wall indication. The five tubes with indications 20-40% T.W. were re-examined using the .540" diameter probe to confirm the percent through wall deptho. These tubes (B-26-13, B-50-39, B-73-78, B-82-14 and B-103-33) will be monitored as degraded tubes during the next examination. The tube with the 63% through wall indication (B-123-1) was removed from service by plugging.

This indication was located at 6.4" above the secondary face of the upper tubesheet. The indication was re-evaluated using the .540" probe and assigned J a value of 60% through wall from the inside surface. The 8x1-ABS probe was used to confirm the cittamferential extent as 2-coile. i A review of the last examination of this tube (1984) showed the indication had been present but was not screened during the analysis process. A review of the signals amplitude and phase angle showed the indication had not changed.

Based on the indications location and the review of the 1984 data, it was determined no scope expansion was required (Reference 12).

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• Rovision 0 l Page 16 j B. OPUN ELECTIVE EXAMINATIONS B-1 TUBES WITH INDICATIONS NOT Cor: FIRMED BY 8x1 ABSOLUTE EXAM IN PREVIOUS EXAMINATIONS Data Sets 8x1ACC Probe .540" Bobbin Extent: Full Length SCOPE In OTSG "A", 29 tubes were examined.

In OTSG "B", 14 tubes wero examined.

REASON FOR EXAMINnT!ON These tubes were examined to continue monitoring the status of the previously recorded indications.

INCLUDED TUDES All in-service tubes with indications recorded as 20% through wall or greater but not confirmed by.8x1-ABS during Outages 86-5M, 86-6R or 88-7R were included in this category. This population represents threshold level indications which are below the threshold of detection for the 8x1-ABS probe.

These may be relevant indications which are not detectable due to their geometry or may be non-relevant indicatione caused by something other than material degradation. Since 1986, this population of tubes had ranged in elze from OTSO "A" OTSG "B" TOTAL 1986-5M 228 50 278 1986-6R 18 7 25 1988-7R 33 13 46 1990-8R 29 14 43 This change in the population is a result of indicatione being re-categorized as the examination and analysis techniques are refined. When indicatione are re-categorized, the tubee may be placed in another data set such as " Degraded Tuboe", removed from service by plugging or returned to the general tube population.

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• Revision 0 Page 17 RESULTS OTSG A In OTSG A, the indicatiec:s in 15 of the 29 tubes were recorded as 201-40%

through wall and will be aonitored as degraded (ISI) tubes during the next examination.- In the remat"!.ng tubes, four tubes had small amplitude indications less than 1.0 volts and will be monitored as S/N tubes during the next outage.- In nine tubes, no recordable indications were identified and the tubes will be returned to the general sample. In one tube, the previously-identified indication was recorded as >40% T.W. but not confirmed by 8xl and the tube will remain in this same category during the next examination oTSo a In OTSO D, three of the 14 tubes had indications of 20-40% T.W. and will be monitored as degraded (ISI) tubes during the next examination. Three tubes had small amplitude indications less than 1.0 volts and will be monitored as S/N tubes during the next examination. The remaining eight tubes had no recordable indications and will be returned to the general sample for the next examination.

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-Page 18 I lB-2 LANE / WEDGE TUBES-Data Set: LANWEG-

. Probes. 510" Bobbin,_8x1-ABS Extents .510" Bobbin - Full Length 8x1-ABS - 14th T.S.P. to UTS SCOPE In OTSG "A", 403 Bobbin coil examinations, 419 8x1-ABS examinations. )

In OTSG "B",1416-Dobbin _ coil examinations, 418 8x1-ABS examinations.

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REASON FOR" EXAMINATION OTSGethave typically-experienced degrsdation in the lane / wedge tubec. In consideration of the poenibilityaof. accelerated-degradationiin this area, GPUN  ;

elected;to examine all of the lane / wedge tubes 1n accordance with paragraph-

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4.19.2.a.4.(1)fof the Tech. Spec. (Reference 1).

' INCLUDED TUBES'

-This examinationulncluded all in-service tubes in the Lane and Wedge. area.

This includes the tubes in the'three rows on each side of the open inspection lanel(Rows'73, 74'o75, 77,=78, 79) from tube 1 to the center of the-0TSG,

--which;are the-laaeLtubes. The wedge-. tubes are tho tubes includedEin the wedge ';

formed by drawing a111ne-from Row 66 Tube ~1 to" Row 75~ Tube 15 and-from Row 186s

~, Tube l'to. Row;77 Tube 15.

lRESULTS

.OTSO ' A In OTSG-A,;,_two tubes-(A-73-44, A-78-19) had_ indications.>40% through wall and were removed from service byJplugging. The indication in A-73-44 was located

.atrthe. 4th T.S.P. : and was evaluated as - 52% T.W. from'the 0.D. surface...The1

. indication =in A-78-19 was locatedfat the entrance:to the upper tubeEsheet, j This liidication could :notLbe _ sized using lthe' bobbin coll _ technique; however, Lbased on the,MRPC:and'8x1-ABS probes, it'was considered to be 40V T.W. or greater originating on.the O.D., surface.

In. addition, four. tubes had-distorted tubesheet_or tube support plate ,

' indications.- Two:tubesT(A-73-52, A-74-1~had distorted tubesheet indications on the48xi-ABS examinations. These areas were examined using the MRPCiprobe and the indications were determined to be:non-relevant.- Two tubes:(A-77-37,-

- A-79-49); had: distorted tube . support plate : indications (7th' T.S.P. and 8th

.T.S.P.,~respectively)"using-the bobbin coll' probe. These indications were confirmed as non-relevant using.the Ox1-ABS _ probe.

>0no other tube (A-79-47) had small amplitude (S/N) indication in the upper c

tubesheet. - This indication was recorded and the tube will be monitored during c the-next-examination.

ATT1.TDR

,~ .,-u,,---, n ., , - - _ . . . 3.-.. . - - , - - _ _ _ _ _ _ - - - .

Attachment 1

• Revision O Page 19 OTSO B In OTSO B, one tube (B-77-12) had an indication at the secondary face of the upper tubesheet. This indication was distorted and could not be sized using the bobbin coil probe. Based on the MRPC and 8xl-ABS probes, the indication was determined to be >40% through wall from the O.D. and 1-coil in circumferential extent and the tube was removed from service by plugging.

2ndications of 20-40% through wall were recorded in two tubes (B-73-45, R B-74-56) and these tubes will be monitored as degraded tubes during the next examination. Two other tubeo (B-67-1, B-78-56) had small amplitude (S/N) indicatione recorded. These indications were recorded and the tubes will be monitored during the next examination.

ATT1.TDR

' 1 Attachmsnt 1

• Revision 0 Page 20 l

1 B-3 TUBES WITH S/N INDICATIONS Data Set: S/N, S/N-7R Probe: .540" Bobbin '

Extent: Full Length SCOPE In OTSG "A", 60~ tube 9 were examined.

In OTSG "B", 18 tubes were examined.

REASON FOR EXAMINATION These tubes were examined to verify the minor nature of the indications.

INCLUDED TUDES During previous OTSG examinations, poor signal to noise ratio (S/N) indications of less than 1.0 volt have been detected and recorded using the bobbin coil probe. The through wall depth of these indications cannot be quantified due to the poor (less than 3:1) signal to noise ratio; however, the 1 8xl-ABS technique has been used to verify the small circumferential extent.

Based on the results of these examinations the indications have always been 2 coils or'less in circumferential extent and the tubes have remained in service to be monitored as "S/Ns".

S/N indications recorded since 1986-5M which had phase angles of 6' to 110' by .540-HGSD and were confirmed by 8x1-ABS were examined during this outage.

In addition, all S/Ns which met this phase angle criteria in 1988-7R were included whether or not they were-confirmed by 8x1-ABS.

RESULTS OTSG A The indications in 22 of the 60 tubes continued to be below the threshold for evaluating percent through wall. In 11 of the tubes (A-7-4, A-24-19, A-25-2, A-26-96, A-31-24, A-50-2, A-75-26, A-95-127, A-100-90,-A-144-2, A-149-30), the indications were of an acceptable level for evaluation and were determined to be 20-39% through wall. These tubes will be considered degraded tubes during the next examination. In 27 tubes, the indications were outside the recording range.and the tubes will be returned to the general samples.

OTSG B The indications in eight of the 18 tubes continued to be below the threshold for evaluation. Four tubes (B-8-44, B-42-74, B-79-47, B-131-27) had indications evaluated as 20-39% through wall and will be examined as degraded tubes during the next outage. In six tubes, the indications were outside the recording range and the tubes will be returned to the general samples.

ATT1.TDR

. .- . u ~ , - _ . - - ~ - ,,_g - - . . . . . - . _ . . . . - . - . . -~ ~ - - - . - __

' l Attachmsnt 1.

, -l Revision 0 -

Page 21 ,

I l

4 B-4 HECHANICAL CLEANING BASELINE Data Sets WSC Probe .540"' Bobbin Extant Full Length

' SCOPE 7

.In OTSG "A",'47 tubes were examined. 7 In OTSG "B", 50 tubes were examined. t i

, REASON FOR EXAMINATION

~

During Outage 7R,IGPUN performed mechanical. cleaning (Water. Slap-Cleaning) to remove deposits from the secondary side of the OTSGs. Since this cleaning process involves pulsing nitrogen-into the secondary side of the OTSG.and displacing large volumes of-water, a pre-cleaning and post-cleaning baseline was desired in areas where theLtubes were exposed to the highest stress during the cleaning process.

INCLUDED TUBES ,

1 The . tubes . selected :for examination wereL located near' the nitrogen injection }

nozzle locations. As stated in Reference 6, the: tubes. exposed to the mosto  ;

' adverse loadings.are located 18 tubes from the centerline of the-nozzle and-three tubes..in from the periphery 4 The tubes.were therefore selected from

.this.envelopeJin front-of four of the eight nozzles in each OTSG.

RESULTS j OTSG A.

,L No evidence of damage from the; mechanical cleaning process was' observed'in d u

these tubes. Threa= tubes-(A-3-14,.A-4-30, A-95-1)-did have small amplitude.

(S/N)- inner diameter ? indications identified and the tubes will be examined' as t

]

ES/Ns:during the next. outage. In addition,1one tube (A-63-128) had an

' indication in the absolute' channel.of the bobbin probe, however,1 the >

h indication"was determinedLto he non-relevant, based on the'8xl-ABS examination.

.OTSG B-No evidence-of damage from the mechanical cleaning process was noted in these tubes. One tube (B-113-114). did have a' distorted support plate. signal.which  :

was' determined to'be-non-relevant b3 sed on the 8xi-ABS probe. In addition, F one tube (B-114-4') had-a small' amplitude (S/N) inner diameter indication and will be examined as a S/N next examination.

l t

l .-

ATTI.TDR l- . _. . _ _ - . . _ _ . . _ . . . , , . _, ,_ , _ _

Attachment 1

• R& vision 0 Page 22 B-5 EXTRA Data Set: Extra Probe .510" Bobbin Extent Full _sngth SCOPE OTSG "A", 3 tubes were examined.

REASON FOR EXAMINATION During the course of the examinatione, Eddy Current data was acquired on tubes not identified on the ECT data sheets. The tubes were examined as a result of the typographical or interpretive errors on the part of the data acquisition personnel. Once the-ECT data is recorded, it is evaluated and the tubes dispositioned accordingly. .

INCLUDED TUDES These tubes are randomly located.

RESULTS t

No indications were identified in these tubes, l

l l

ATTI.TDR

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Attachmsnt 1

• Rsvision 0 Page 23 C.. ' DISCUSSION OF RESULTS

' Characterization Of Indications The indications reported during 1990-8R were characterized by: location, percent through wall, amplitude, and circumferential extent. -(See Figures-III-$-through III-8). This characterization showed that the majority of indications are inner diameter initiated and are' located-towards the top of the OTsce. In OT50 "A", the indication rates are higher towards the outer periphery while the distribution is more uniform across OTSG "B". This is the same distribution of indications as identified during the previous examinations.

The amplitudes (voltage) of the 1990-8R indications were typically small,

<2.0 volts.l The characterization by percent through wall shows most of '

the-indications are partial through-wall with 98% of the indications

. recorded as <50% through wall. These are both consistent with previous examination results.

-The circumferential extentlof the 1990-8R indications was 1 coil for all indications except-two 2-coil indications. This is consistent with the previouo examination results.

Review of Previous Data

.The ECT examination process' included a review of previous examination-data. This review was performed to better characterize and understand j apparent-changes in the.ECT!results from previous outages. This. review and comparison included.all tubes which were plugged during Outage 8R.

-Based-oncthe results of this review,:the tubes can be. categorized in the -

00 following groups.

,g 14 : Tubes:with indicatione >40% -through wall: in. 8R which exhibited 2100 change from 7R-8R.

i- This category includes three tubes, all in OTSG A:(A-3-25, A-4-28,' 3 A-104-121). These. tubes had previously recorded indications of

-less_than 40% through wall and the. tubes were examined to monitor the indications. 'The indicatione'in these-tubes now exceed the 40% through: wall plugging limit and the changes-in-the indications -;

since--the-last examination are >10% through wall.' A comparison of-

[ ,

fthe signalcamplitude shows in each case-the amplitude (voltage) of

.the indications has decreased since the last examination. This i at would' indicate'the. changes may be attributed to the repeatability-of the ECT process and.do not positively indicate there11s-ani active mechanism.

1 ,

ATT1.TDR-

Attachment 1 1

• R3vLsLon 0 I Page 24

2. Tubes with indications >40% through wall which exhibited less than 10% change from the last examination.

This group includes two tubes in OTSG B. (B-123-1, B-138-52).

Both of these tubes had indications >40% through wall recorded during 1990 8R and the tubes were removed from service. The indication in B-123-1 was located in the upper tubesheet just below the kinetic expansion transition. A review of the 1984 data for this tube revealed the indication had been present but not detected during the examination. A review of the signal's phase angle and amplitude indicated it had net changed from 1984 to 1990-8R.

In tube B-138-52, a previously screened but not confirmed indication was confirmed by the 8xl-ABS probe at the 6th T.S.P.

Based on the .540" bobbin probe examination, this indication had not changed from 1988-7R to 1990-8R.

3. Tubes with indicatione >40% T.W. which were previously distorted or undetectable.

This category includes two tubes (A-73-44, A-78-19) in OTSG-A and one tube (B-77-12) in OTSG-B.

Two tubes were removed from service, one in each OTSG because of indications at the entrance to the upper tubenheet. In OTSG A, tube A-78-19 had a 2-co11 indication detected during the 8x1-ABS exataination of the lane area. In OTSG B, tube 77-12 had a distorted tubecheet indication (DTS) recorded during the .510" bobbin coil examination.

Both of these tubee were then examined using the Mr.Pc probe, which showed the indications to be rounded, outer diameter initiated and located immediately above the entrance to the upper tubecheet.

Based on a comparison of the size and shape of the indication with the flat bottom holes in the ASME calibration standard, the indications were determined to be >40% T.W. and the tubes were removed from'eervice.

The remaining tube, A-73-44, had a previously recorded distortion at the 4th T.S.P. which was determined to be a relevant indication during Outage 1990-8R. This tube was also removed from service.

ATTI.TDR

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ACHI IST'J Tubes

Attechm2nt 1 R0vicion O Page 27 FIGURE 111-3 DISTRIBUTION OF IN DIC ATIO N S BY AXI AL LOC ATION O T S G " A" 015 - U T .__a 014 -015 N E

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• LT S - 0 01 s 8R LTE - LT S b I I I I I I O SO 100 150 200 250 300 NUMBER OF INDIC ATIONS O T S G "B" UT S - UTE Ek -. ' '

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7R 002-003 001 -002 > ' 8R L T S - 0 01 LTE - LTS I I I I I I O 50 100 150 200 250 300 NUMBER OF INDIC ATIONS

Attachment 1 Rovision 0 Page 28 FIGURE lil-4 INDIC ATION RATES BY RE GION TUBES WITH INDIC ATIONS / TUBES EX AMINED OTSG "A" P

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

l Attachment 1 ,

i . Revielen 0 l Page 29 FI G U R E 111 - 6 DISTRIBUTION OF INDIC ATIONS BY PERCENT THROUGH WALL 1

OTCG "A"

. 300 . . . . .

I 250 . . . . , , . . .. , ,

N , y D 5M i 200- , . . . . , . .

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0 S/N 20 -29 30 - 39 40 -49 50 - 59 60 - 69 70 - 79 80 - 80 > = 90 PERCENT DEPTH OTSG *B" 300 .. , ..... , , ,. . ,. , . . .

1 250 _ , , . , , ,

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S/N 20 - 29 30 -39 40 - 49 50 - 59 60 - 69 70 - 79 80 - 89 > = 90 PERCENT DEPTH ,

y -

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Attachment 1 Revision 0 Page 30 FIGURE lil-6 DISTRIBUTION OF IN DIC ATIO N S BY A M P LITU D E OTSG "A" 300 . . .

I N

250._ \ .

D .

'5M l 200 , .. , .

C .

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s S/N < 1.0 1.0-1.92.0-2.90.0-3.94.0-4.9 > 5.0 A M P LIT U D E IN VOLTS OTSG "B" 300 _. .. . .

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S/N < 1.0 1.0-1.92.0-2.93.0-3.94.0-4.9 > 5.0 A M P LIT U D E IN VOLTS

'~

Attachmsnt-1

, Rsvision O  !

Page 31 IV. OUTAGE BU1' EXAMINATION CATEGORIES AND RESULTS l

.The locations of the tubes examined during Outage 801 are shown in Figure-IV -1.. The. tubes were categorized in-two groups based on the examination; purpose.

A. Tubes suspected as leakers B. Lane / lane' wedge tubes The results of these examination are summarized below.

A. TUBES SUSPECTED AS LEAKERS Data Set: Suspect Probe .540" Bobbin 8x1-ABS ,

Extent Various SCOPE

)

In OTSO."A", three tubes.were examined.

REASON FOR EXAMINATION Following the plant shutdown, a' bubble test was performed to determine the source of primary to secondary leakage.

During.the test, tube A-77-1 (lane wedge tube) was-identiflod as an obvious

. leaker and tubes A-48-64'and A-85-92 (interior tubes)_were identified as suspected lenkers. The' tubes were then examined to' locate any possible defects.. _

EXTENT

Tube A-77-1 was an obvious leaker and had' temporary plugs installed in each Tend'during the bubble and subsequent drip tests. .This stopper limited subsequent -examinations .to the . upper portion of _ the- tube. The .540"ibobbin-examination was performed from the 9th tube support plate to the upper tube 7 end~while the'8x1-ABS-examination Was performed from the 14th tube support  ;

= plate through the tube end. These extents were.acceptsble_to. permit dispositioning the tube in accordance wlth the approved repair criteria. -l Tubes.A-48-64 and A-85-92 were examined,from the 10th tube support plate to the tube end:using the 8x1-Ans probe and over their entire length using._the

.540" bobbin. ,

.n

-ATTI.TDR

Attachm3nt 1  ;

• Rsvision 0 Page 32 RESULTS Tube A-77-1, which was the obvious leaker, was identified as having a large amplitude 100% through wall defect at the entrance to the upper tubesheet.

Based on the Ox1-ABS, the indication was determined to be 8-coils in circumferential extent indicating it was nearly 360'. This circumferential extent was also confirmed by the MRPC probe and visual examination.

Tubes A-48-64 and A-05-92 had no detectable indications using either probe.

Post repair bubble testing also confirmed this result, l

ATT1.TDR i

l Attcchm:nt 1

- Rzvision 0 Page 33 B. LANE / LANE WEDGE TUBES Data Sets Lane, Lane-1 Probe: 8x1-ABS Extent: 14th T.S.P.

SCOPE In OTSG "A", 417 tubes were examined.

REASON FOR EXAMINATIONS As noted in Section III, OTSGs have typically experienced higher degradation rates in the upper portions of the lane and lane wedge tuben. This was further evidenced by the fact that tube A-77-1, a lane wedge tabe, had failed at the secondary face of the upper tubesheet. This failure mode, type and location wert typical of failures observed in other OTSGn.

INCLUDED TUBES This examination included all inservice tubes in the previously defined lane and wedge regione This includes the tubes in the three rows ori each side of the open inspection lane (Rows 73, 74, 75, 77, 78, 79) from tube 1 to the center of the OTSG, which are the lane tubes. The wedge includes all tubes inside the area formed by drawing a line from Row 66 Tube 1 to Row 75 Tube 15 and from Row 86 Tube 1 to Row 77 Tube 15.

RESULTS Based on the 8x1-ABS examination of these tubes, four tubes were identified as having suspect indications. These tubes A-73-37, A-74-1, A-75-62 and A-78-28 were examined using the MRPC probe. Based on the combined results of the 8x1-ABS and HRPC, tube A-78-28 was removed from service as a precautionary measure. This tube had an indication considered to be >40% through wall, however, no depth could be assigned.

ATT1.TDR

Attachm2nt 1

. Rsvision 0 Page 34 C. DISCUSSIONS OF RESULTS Based on the characterization of the defect in tube A-77-1 and the results of the ECT examinations, GPUN determined the occurrence of the tube leak was most probably the result of high cycle fatigue. Failures of this type have prevJ.ously been identified at other B&W plants and typically occur over a short period of time prohibiting the detection and preventive plugging of suspected defects. The scope of the examinations was therefore not expanded beyond the initial scope. This evaluation and disposition is documented in References 13 and 14.

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V. CONCLUSIONS f

l Based on the results of the 1990, Outage BR and BUl, ECT examinations and data evaluations, GPUN was able to reach the following conclusions:

1. The exneinations of the prev. ,uely "D'qraded Tubes" do not indicato a  !

trend of ongoing degradation.

2. The examinatjon results of the fasb. S' ac. random samples did not reveal a trend of new or continulay donage mechanisme. The majprity of tho indications identified during this examination were determined to have been present during previous inspections.

3.

The GPUN Elective Examinations confirmed the minor nature of indications in this category. The few indications which exceeded the 40% through wall plugging limit indicate GPUN should continue to monitor indications of this type.

4.

The results from the 8U1 examinations indicate the tube leak was an isolated occurrence, the result of high cycle f atigue, similar to failures which have been identified at other B&W plants.

i f

~

ATTI.TDR

-Attachmsnt 1

-., Revision 0-' -. ;

Page 37

VI~. REPERENCES

1. ' Appendix A .to the- THI-1 Operating License, Amendment 151, Technical Specification 4 19, 08/31/89.

2. GPUN TDR 423, Rev. 1,.R. Darley, J. Janiszewski, G. Rhedrick, M. Torborg, "Three Mile Island - Unit 1 OTSC Tubing Eddy current

-Program-Qualification," 03/15/84.

3. GPUN TDR 642,.Rev. 2, M. Torborg, G. Rhedrick " Qualification of Conversion Curve-for Inner Diameter. Discontinuities," 10/31/85.

,i

4. Three Mile Island Nuclear Station Unit No. 1 Surveillance PIocedure i 1300-4B, Rev. 2, " Eddy Current Examination of OTSG," 03/21/86.

.5. GPUN TDR 652,..Rev. 2, C. E. Rhedrick, M. T. Torborg, b. L. Langan,

" Evaluation of the 1984 Required Tecnnical Specification Examination

.for the TMI-1 OTrG," 12/02/85.

L 6. GPUN IOM,f S310-88-531, J. D. Abramovici to R. O.-' Barley,'" Suggested OldG Tube Sample Population To Do Inspected in 7R Before WSC,"

01/05/88.e

7. = PWR Steam Generator Examination Guidelines, Revision 2, August 1968,.

-- E PRI . -

8. GPUN-TDR 781,.Rev. 1, M.'Ti Tcrborg, "Results of SM ECT Examinations of the TMI-2. OTSGs," -06/16/86 -  ?

9. GPUN.TDR 839,'Rev. O, M. T. Torborg, "Results of the 1986-6R OTSG Eddy.

Current Examinations," 03/16/87

-10.-CPUNiTDR 935, Rev.-0,,M. T. Torborg,:Results of the'1988-7R OTSC' Eddy Current? Examinations, 01/25/89 P

ATT1.TDR

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

l Attachm0nt 1 Rovision 0 Page 38 i

11. CPUN TDR 999, Rev. O, M. 7. Torborg, " Evaluation Of ECT Probes For Use in Examining The THI-1 OTS0s," 03/09/90

12. OPUN.IOH, 3300-90-0021, R. O. Barley to J. J. Colitz, "0T50 Eddy

,j Current Test Hesults (BR)," 02/25/90 4

13. Appendix A to the TH1-1 Operating License, Amendment 153. Technical Specification 4.19, 05/29/90

14. OPUN IDH, R. O. Barles to J. J. Colitz, "0TSO Eddy Current Test Re suits (80-1)," 03/13/90

15. OPUN TDR 1026, Rev. O, M. T. Torborg, " Outage BR and 801 OTSO Eddy Current Examinations," 10-12-90 1

f ATTI.TDR

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

. t 3

'

• ATTACRMENT 1 REVISION O  !

PAGE y -

APPENDIX f i I

Appendix I  !

1 DATA ANALYSIS CODES l-l l

l l

l l

l l

l l

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A??ACHMENT 1 REVISION o PAGE_40 APPENDIX _T DDA*4 ANALYS18 CODES TO BC PUT IN PERCENT COLUNK ADR 1rdication Not Reportable INR Absolute Drtit Retest ADR RAD Incomplete Test INC Bad Data BDA Retest INC RIC Retest SDA L8D No Detectable Discontinuity NDD DNT Dent RDN Permeability Variation PVN Retest DNT Retest PVN LPV Dent With Possible Indication DN! l Retest DN! RDI Plugged PLC '

Ding DNC Roll Transition With Possible RDC Indication DRI l Retest DNG Retest DR1 R21 l Ob s t ruc t ed 085 Distorted Roll Transition DRT Rol Retest DRT RRT Retest CBS Studge SLG Distorted toll Tr.snsition W/ Pass Indicatten DR1 Retest SLC RSC Retest DR1 RAI Signal To Noise Ratio S/N Distorted Support Signal D3s Templats obstruction kDS TM0 Retest D85 Retest THC RTO Distorted Top of tubesheet DTS Retest DT5 RDT Template Flug TMP

- Retest TMF RTP Expansion Trantition Location Ett TNT Retest ETL LEL Tube No Test Retest TNT RNT Fixture FIX RFI Tube Number Check TNC Retest PIX 401C Retest TNC ID Chanter IDC Rettest IDC RDC Tube Restricted TRS l RTR Retest TR$

Indication Not Found INF l

, Retest INF RNF Undefined Signal UDS Ratest UDS RUD

, . t Y ATTACHMENT 1 REVISION O (

PAGE 9l l APPENDIX L )

EXFLANATION OF DDA 4 ANALYSIS CODES  !

Absolute Drift (ADR) -

Norsally refers to drif t in the crevice of non+sxpanded tune sheets. Can also be used for tube to tube wear in free standing section of tubing. Possible indicator of Inner Granular Attack (ICA). Recorded in low )

frequency absolute Bad Dets (BDA) - Self explanatory.

Dent (DNT) -

Tube !.D. smaller than nominal 1.D.. occurring at support plate

, intersections or top of tube sheets. Recorded in dif ferential mix.

Dina (DNC) - Similar to dont but in free standing part of tube. Either caused in manufacturing or by mechanical cause. Recorded in prime frequency.

Dent With Possible Indication (DNI) -

Possible discontinuity indication associated with dont but is not measurable. Recorded fres differential six.

Distorted Roll Transition (DRT)

• Self explanatory.

Distorted Roll transition With Possible Indication (DRI) - A distorted roll transition that has sufficient distortion that a discontinuity may be creating the distortion.

Distorted Support Straal (DSS)

• An indication at the intersection of a support plate which may be indicative of a possible discontinuity. The siguri may be distorted by deposit, dents, or saturated 1 rilled hole supporte.

Distorted Tube Sheet (DTS) - An indication at the intersection of the upper or lower secondkry tube shests which may be indicative of a possible discontinuity.

The signal may be distorted by deposits, dents, or saturated tube sheet signals.

Expansion Transition Location (ETL) - Used to record the location of the kenetic expansion.

Fixture (FII) - Used when tubes cannot be examined because the fixture foot is obstructing tube er the fixture will not reach a particular tube.

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1 10 Chatter (!DC) - Caused by manufacturin g prncess (pilgering). Characterised l by long areas of horisontal motion. Racer.ted in prime frequency.

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, , d' ATTACID(ENT 1 REVISION O PAGE ME APPENDIX ;1_,

Incomplete Test (INC)

• Tube not run to the extent required or couplete tube not recorded.

Indication Net Fouad (INF)

• Indication that has been previously reported but is not found on current examination.

Indication Not Reportable (!NR)

• Indication that has been previously reported but does not meet current reporting criteria.

No Detectable Discontinuity (NDD) -

Entry not required if DBASE system used.

obstructed (088) - Tube that is obstructed by foreign material, i.e., dirt, chunk of metal, broken off probe head, etc.

Permeability Variation (PVN) - Self explanatory. Recorded in prime frequency f ree standing tube, seasured in dif ferential mix at support plate intersections.

Pluated (PLC) - Permanent mechanical plug, not to be confused with obstruction.

Studae (SLC) - Accumulation of ferromagnetic material on top of tube sheets or support plates. Recorded in lowest absolute frequency as per specific plant re quirements.

5,tanal To Noise tatto (5/N) - Small amplitude indications (less than 1 volt with 540 HCSD, less than 1/2 volt normal gain) that do not have a minimum of a 3 to 1 signal to noise ratio.

Template obstruction (TMO) - Self explanatory.

Tube No Test (TNT) - Self explanatory.

Tube Number Check (TNC) - Used when the tube identity is in doubt.

Tube teatricted (TRS) - Caused by tube itself, i.e. bent tube lip, large dents or dings.

Undefined Straal (UDS) - A signal that is re examined with the 8:1 technique to determine if the signal is relevant.

3 A7TACHMENT 1 REVISION O PACE M 3 APPENDIX n Appendix II STATISTICAL EVALUATION DATA I

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.. PAGE $4 l THREE MILE ISLAND UNIT 1 APPEND 3X JE, COMPONENT SG A QUTAGE : 8R COMPARISON OF PREVIOUS EXAM RESULTS Rev Tube Exam Exam Exam Indication Ind  % Ind Delta Delta Location Dog Depth 1

Reason out Numb T.W. Volt Volta 1 4 ISI 8R 12856' 012+ 6.8 5 17 1.35 ISI 7R 5508 012+ 6.7 7 23 1.49 -00.14 -6.00 it ISI 8R 12856 013+ 6.5 7 23 1.95 ISI 7R 5508 013+ 6.6 9 30 2.38 -00.43 -7.00

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ISI SR 12856 013+ 10.6 6 20 1.10 ISI- 8R 12856 013+ 12.0 10 33 1.08 ISI 7R 5508 013+ 12.1 7 23 1.29 -00.21 10.00 ISI 8R 12856 013+ 20.0 5 17 1.12 ISI 8R 12856 013+ 26.4 5 17 0.85 ISI 8R 12856 015+ 36.0 10 33 2.22

ISI 7R 5508 015+ 35.9 6 20 2.67 -00.'45 13.00 2 6 ISI 8R 12857 015+ 24.5 8 26 1.11 1

-ISI 7R 5509 015+ 24.5 8 26 1.19 -00.08 00.00 i

ISI 8R 12857 015+ 25.2 10 33 1.26 ISI 7R 5509 015+ 24.5 8 26 1.19 00.07 07.00 ISI 8R 12857 015+ 28.9 8 27 1.72

.ISI 7R 5509 015+ 28.8 9 30 1.82 -00.10 -3.00 ISI 8R 12857 015+ 35.8 9 30 1.29 ISI 7R 5509 015+ 35.7 6 20 1.63 -00.34 10.00 ISI 8R 12857 015+ 36.4 6 20 3.83 ISI 7R -5509 015+ 35.7 6 20 1.63 02.20 00.00 ISI BR- 12857 015+ 39.4 6 20 2.30.

ISI 7R 5509 015+ 39.2 5 16 2.76 -00.46 04.00 ISI 8R 12857 015+ 40.6 8 27 1.53 ISI 7R 5509 015+ 40.4 8 26 1.71 -00.18 01.00 ,

2 22 ISI 8R 12993 014+ 21.9 9 30 1.06 ISI 8R 12993 014+ 29.4 8 26 0.73 2 25 ISI BP 12858 004+ 13.3 6 20 1.59 ISI 8h 12858 012+ 35.9 1 36 .0.95 ISI 8R 12858 013+ 3.2 6 20 0.73 ISI 8R 12858 013+ 9.3 11 36 1.23 ISI 7R 5510 013+ 9.2 5- 18 1.24 -00.01 18.00 ISI 8R 12858 013+ 10.3 10 33- 1.17 ISI 7R 5510 013+ 10.3 6 21 1.20 -00.03 12.00 3- 17 -ISI 8R 12959 015+ 32.9 8 27 1.08 ISI 7R 5635 015+ 32.6 10 33 1.27 -00.19 -6.00 Continues'Next Page =>

, ,.;, - ._,. a ~. .. _ . . , _ ._._.,.._.. _ __ _. _. _ _ _ ___ _ _ _ _.. _._. _ ___ _ _ _ _.-

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ATTACHMENT 1 REVISION O PAGE 45 THREE MILE ISLANDIUNIT 1 APPENDIX b COMPONENT SG A OUTAGE : 8R COMPARISON OF PREVIOUS EXAM RESULTS Row Tube Exam Exam Exam Indication Ind  % Ind Delta Delta Reason out Numb Location Dog T.W. Volt Volts Depth ISI 8R 12959 UTS+ 0.4 6 20 0.80 3 25 ISI 8R 12859 015+ 41.3 10 33 0.89 ISI 7R 5511 015+ 41.7 9 32 1.03 -00.14 01.00 ISI 8R 12859 015+ 41.7 11 36 1.10 ISI 7R 5511 015+ 41.7 9 32 1.03 00.07 04.00 ISI 8R 12859 015+ 42.8 16 53 1.03 ISI 7R 5511 015+ 42.8 8 28 1.36 -00.33 25.00 ISI 8R 12859 015+ 43.1 17 56 1.54 ISI 7R 5511 015+ 42.8 8 28 1.36 00.18 28.00

• ISI SR 12859 015+ 43.5 10 33 0.89 ISI 7R 5511 015+ 42.8 8 28 1.36 -00.47 05.00 4 6 ISI 8R 12960 015+ 41.8 5 17 1.04 ISI 7R 5636 015+ 41.6 9 30 1.06 -00.02 -13.00 4 28 ISI 8R 12860 015+ 21.8 11 36 1.16 ISI BR 12860 015+ 23.2 5 16 0.02 ISI BR 12860 015+ 27.6 5 16 1.63 i ISI 8R 12860 015+ 30.6 15 50 1.47 '

ISI 7R 5512 015+ 30.8 7 25 2.09 -00.62 25.00 1 4 29 ISI SR 12861 015+ 19.4 8 26 0.84 ISI 8R 12861 015+ 20.9 5 16 1.90 ISI 8R 12861 015+ 27.1 11 36 1.97 ISI 7R 5513 015+ 27.3 10 36 1.71 00.26 00.00 ISI 8R 12861 015+ 35.9 11 16 0.59 ISI 7R 5513 015+ 35.9 7 25 0.76 -00.17 -9.00 ISI 8R 12861 015+ 37.6 8 26 0.59 4 34 ISI 3R 12994 015+ 23.6 9 30 1.02 5 3 .ISI 8R 12862 014+ 24.1 6 20 0.89 ISI BR 12862 015+ 3.1 5 17 0.69 ISI 8R 12862 015+ 44.2 10 33 1.49  ;

ISI 7R 5514 015+ 44.2 9 30 1.69 -00.20 03.00 ISI 8R 12862 015+ 44.8 10 33 2.67 ISI 7R 5514 015+ 44.2 9 30 1.69 00.98 03.00 5 -5 ISI 8R 12961 012+ 27.2 83 50- 0.53 ISI 7R 5637 012+ 27.1 81 51 0.58 -00.05 -1.00-p ' Continues Next Page =>

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7;ett n ~ias....'ENT 1 REVISION O _

THREE MILE ISLAND UNIT 1 COMPONENT I SG A PAGE J ~~E~

APPENDIX --

OUTAGE I BR COMPARISON OF PREVIOUS EXAM RESULTS Roe Tube Exam Exam Exam Indication Ind Reason  % Ind Delta Delta Out Numb Location Deg T.W. Volt ISI UR 12961 015+ 34.4 Volts Depth '

ISI 7 23 1.29 7R 5637 015+ 34.3 8 26 1.32 -00.03 -3.00 5 30 IGI BR 12863 UTS+ 4.1 7 23 1.21 =

6 43 ISI BR 12864 015+ 42.6 ISI 9 30 0.67 BR 12864 UTS+ 3.5 11 36 2.88 ISI 7R 5516 UTS+ 3.5 9 12 ISI 8R 12864 UTS+

2.12 00.76 04.00 6.3 7 23 2.33 6 47 ISI 12865 BR 015+ 19.9 6 20 1.49 ISI 7R 5517 015+ 19.9 7 25 ISI 12865 1.19 00.30 -5.00 -

ISI BR 015+ 23.0 7 23 1.34 BR 12865 015+ 24.2 7 23 1.04 ISI BR 12865 015+ 33.8 5 16 1.88 ISI 7R 5517 015+ 33.9 7 25 ISI 1.51 00.37 -9.00 BR 12865 015+ 39.2 5 16 0.67 ISI BR 12865 015+ 40.1 8 26 0.67 6 48 ISI 8R 12866 UTS+ 0.4 10 33 1.46 ISI 7R 5518 UTS+ 0.4 11 36 2.03 -00.57 -3.00 \

8 2 ISI 12867 ISI BR 012+ 16.2 9 30 1.15 7R 5519 012+ 16.1 5 16 1.54 ISI -00.39 14.00 BR 12867 012+ 19.0 7 23 0.99 ISI DR 12867 012+ 25.3 8 27 ISI 2.03 7R 5bl9 012+ 25.1 8 26 2.49 ISI -00.46 01.00 OR 12867 012+ 29.3 10 33 1.45 ISI 7R 5519 012+ 29.1 8 26 ISI 12867 1.76 -00.31 07.00 ISI BR 012+ 33.5 9 30 1.81 7R 5519 012+ 33.4 10 33 2.26 -00.45 -3.00 8 43 ISI 8R 12962 015+ 23.8 6 ISI 20 1.30 7R 5638 015+ 23.8 30 ISI 12962 9 1.08 00.22 -10.00 ISI BR 015+ 24.3 10 33 0.72 7R 5638 015+ 23.8 9 30 ISI 12962 1.08 -00.36 03.00 ISI BR 015+ 32.1 11 36 0.75 BR 12962 015+ 33.1 9 30 0.90 9 6 ISI 8R 12996 015+ 21.7 11 36 0.66 continues Next Page =>

, t W ATTACHMENT 1 REVISION O PAGE _ 41 THREE MILE ISLAND UNIT 1 APPENDIX 1 COMPONENT SG A OUTAGE 8R COMPARISON OF PREVIOUS EXAM RESULTS _j Row Tube Exam Exam Exam Indication Ind  % Ind Delta Delta Reason Out Numb Location Dog T.W. Volt Volts Depth 11 4 ISI 8R 12868 015+ 21.2 9 30 1.10 ISI 7R 5520 015+ 21.1 8 26 1.19 -00.09 04.00 13 1 ISI 8R 12869 011+ 35.2 7 23 0.53 l ISI 7R 5521 011+ 35.6 11 36 1.25 -00.72 -13.00 ISI BR 12869 011+ 35.7 11 36 1.15 ISI 7R 5521 011+ 35.6 11 36 1.25 -00.10 00.00 ISI BR 12869 013+ 14.1 8 26 0.69 ISI 7R 5521 013+ 14.0 5 16 0.78 -00.09 10.00 ISI BR 12869 013+ 21.0 7 23 0.66 -

ISI 8R 12869 013& 22.3 11 36 1.89 ISI 7R 5521 013+ 22.2 8 26 2.31 -00.4I 10.00 ISI BR 12869 013+ 23.3 11 36 1.31 ISI 7R 5521 013+ 23.3 6 20 1.54 -00.23 16.00 ISI 8R 12869 013+ 27.0 5 16 1.46-ISI 8R 12869 013+ 30.4 8 26 0.76 ISI 7R 5521 013+ 30.3 6 20 -1.02 -00.26 06.00 15 -77 ISI 8R 12963 012+ 18.5 10 33 0.83 ISI 7R $639 012+ 18.5 8 28 1.00 -00.17 05.00 ISI BR 12963 012+ 27.5 11 36 0.78 ISI BR 12963 012+ 30.5 9 30 0.80 ISI 7R 5639 012+ 30.5 11 39 1.05 -00.25 -9.00 ISI BR 12963 014+ 3.1 5 16 0.65 16 '2 ISI '8R 12870 015+ 42.3 6 20 0.99 ISI 7R- 5522 015+ 42.0 8 26 1.07 -00.08 -6.00 18 1 ISI 8R 12964 004+ 5.1 11 33 1.17 ISI 7R 5640 004+ 5.3 9 30 1.45 -00.28 03.00 ISI 8R 12964 004+ 11.9 7 23 1.00

-18 8R 12965 015+ 23.7 6 20 0.50 I 3- ISI' ISI BR 12965 015+ 25.1 .11 36 1.04 ISI 7R 5641 015+ 24.8 9 30 1.08 -00.04 06.00 18 64 ISI 8R 12871 015+ 32.6 10 33 1.11-ISI 7R 5523 015+ 32.6 8 26 1.10 00.01 07.00 ISI 8R 12871 015+ 33.0 6 20 1.70 ISI 7R 5523 015+ 32.6 8 26 1.10 00.60 -6.00 Continues Next Page =>

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e ATTACHMENT 1 REVISION O PAGE 49 4

TKREE MILE ISLANDIUNIT 1 APPENDIX J[_

). COMPONENT

• SG A OUTAGE SR i- COMPARISON OF PREVIOUS EXAM RESULTS Row Tubs Exam Exam Exam Indication Ind  % Ind Delta Delta Reason Out Numb Location Dog T.W. Volt Volts Depth ISI 8R 12871 015+ 33.8 8 26 0.70 ISI 7R 5523 015+ 33.0 8 26 1.40 -00.70 00.00 ISI 8R 12871 015+ 34.4 7 23 1.43 ISI 7R 5523 015+ 33.8 6 20 0.96 00.47 03.00 ISI 8R 12871 015+ 35.6 7 23 0.78 ISI 7R 5523 015+ 35.6 6 21 1.11 -00.33 02.00 ISI 8R 12871 015+ 38.1 9 30 1.06 ISI 7R 5523 015+ 38.1 8 26 1.51 -00.45 04.00 ISI 8R 12871 015+ 40.8 9 30 1.10 ISI 7R 5523 015+ 40.8 9 32 0.86 00.24 -2.00 ISI 8R 12871- 015+ 41.8 5 16 1.11 ISI- 7R -5523 015+ 40 0 9 32 0.86 00.25 -16.00 .

' 23 0.99 12967 20 1 ISI 8R 0-ISI 7R 5643 .. 9 30 1.13 -00.14 -7.00

~ " T. 8R 12967 L s+ 31.9 11 36 0.92 ISi 7R 5643 005+ 32.1 8 26 1.04 -00.12 10.00

-20 56 ISI 8R 12872 015+ 25.9 5 16 0.60 ISI- 8R 12872 015+ 33.5 8 26 0.97 ISI 7R 5524 015+ 33.5 11 36 0.68 00.29 -10.00 20 85 ISI 8R 12873 010+ 14.5 6 20 0.96 ISI 8R 12873 010+ 17.4 9 30 1.33 ISI 7R 5525 010+ 17.4 8 26 1.59 -00.26 04.00 ISI 8R 12873 010+ 18.3- 11 36 1.31 ISI 7R 5525 010+ 17.4 8 25 1.59 -00.28 10.00 ISI BR 12873 010+ 20.2 9 30 1.01 ISI 7R 5525 010+ 21.1 9 30 1.09 -00.08 00.00 ISI 8R -12873 010+-31.7 7 23- 1.00 ISI 8R 12873 014+ 31.4 11 36 0.72 ISI 7R 5525 014+ 31.4 6 20 1.15 -00.43- 16.00 ISI 8R 12873 015+ 1.9 5 16 1.02 ISI BR 12873 015+ 10.7 7 23 0.65 22 35 ISI 8R 12968 015+ 34.0 10 33 1.85 ISI 7R 5644 015+ 33.7 - 10 33 1.98 -00.13 00.00 ISI BR 12968 UTS+ 3.6 8 27 0.84 ISI 7R 5644 UTS+ 3.8 8 26 0.91 -00.07 01.00 23 3 ISI 8R 12969 015+ 31.3 6 20 1.00 continues.Next Page =>

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l REVISION O PAGE _49 )

THREE MILE ISLAND UNIT 1 APPENDIX j[_

COMPONENT t SG A OUTAGE SR COMPARISON OF PREVIOUS EXAM RESULTS l Rcw Tube ENam Exam Exam Indication Ind  % Ind Delta Delta Reason Out Numb Location Dag T.W. Volt Volts Depth 24 2 ISI 8R 12970 015+ 37.6 8 26 1.06 25 3 ISI 8R 12999 014+ 12.4 9 30 1.06 ISI 7R 5679 014+ 12.4 5 16 1.18 -00.12 14.00 L 25 21 ISI 8R 12874 015+ 38.0 9 30 0.93 ISI 7R 5526 015+ 37.6 8 26 1.17 -00.24 04.00 27 78 ISI 8R 12971 015+ 22.4 5 16 0.89 ISI 8R 12971 015+ 29.9 7 23 0.99 ISI 7R 5647 015+ 29.9 9 30 1.11 -00.12 -7.00 27 96 ISI 8R 12875 LTE+ 21.7 88 37 2.40 ISI 8R 12875 015+ 37.5 9 30 0.95 ISI 7R 5527 015+ 37.5 6 20 1.33 -00.38 10.00 28 78 ISI 8R 12876 015+ 14.5 5 16 2.43 ISI 7R 5528 015+ 14,5 8 26 3.05 -00.62 -8.00 i ISI 8R 12876 015+ 28 1 9 32 0.94

[ ISI 73 5528 015+ 28.3 9 30 1.16 -00.22 02.00 29 58 ISI 8R 12972 015+ 29.8 7 23 0.74 ISI 7R 5648 015+ 29.8 7 23 1.03 -00.29 00.00.

ISI 8R 12972 015+ 33.5 8 26 0.83 30 23 ISI 8R 12877 013+ 7.7 6 20 1.01 ISI 7R 5529 013+ 7.5 5 16 1.17 -00.16 04.00 ISI 8R 12877 015+ 13.1 11 36 0.79 ISI 7R 5529 015+ 12.8 6 20 0.99 -00.20 16.'00  !

. 31 - 1 ISI SR- 12973 008+ 6.5 11 36 0.94 j t

33 83 ISI 8R 12878 015+ 45.1 6 20 0.98 i ISI 7R 5530 015+ 45.1 9 30 1.13 -00.15 -10.00 e

33 102 ISI 8R 13001 015+ 5.8 9 30 0.89 ISI 7R 5681 015+ 5.8 11 36 1.15- -00.26 -6.00 34 1 ISI 8R 13099 006+ 15.5 9 30 1.07 i 8X1ACC 7R 5531 006+ 15.7 7 23 1.18 -00.11 07.00 l 1

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. t ?_: 3 ATTACHMENT 1 REVISION O PAGE j50 THREE MILE ISLANDtUNIT 1 APPENDIX 1 COMPONENT SG A OUTAGE 8R COMPARISON OF PREVIOUS EXAM RESULTS Rev Tube Exam Exam Exam Indication Ind  % Ind Delta Delta Reason out . Numb Location Dag T.W. Volt Volts Depth

=34 3 ISI 8R 12879 UTS+ 2.0 9 30 1.13 ISI 7R 5532 UTS+ 1.8 10 36 1.44 -00.31 -6.00 35 54 ISI 8R 13100 UTS+ 4.4 6 20 0.71 8X1ACC 7R 6179 UTS+ 4.4 6 20 1.48 -00.77 00.00 36 106 ISI 8R 12974 015+ 34.3 7 23 1.03 ISI 7R 5650 015+ 34.3 8 26 1.47 -00.44 -3.00 37 109 ISI BR 12975 015+ 38.9 11 36 0.80 ISI 7R 5651 015+ 38.9 9 30 1.21 -00.41 06.00 38 29 ISI 8R 12976 011+ 25.1 7 23 0.72 ISI 8R 12976 012+ 3.7 8 26 1.41 ISI 7R 5652 012+ 3.7 -6 21 1.65 -00.24 05.00 39 101 ISI 8R 12881 015+ 34.6 9 30 1.02 ISI 7R 5534 015+ 34.6 10 33 1.24 -00.22 -3,00 39 110 ISI 8R 12882 015+ 39.6 11 36 0.89 ISI 7R 5535 015+ 39.6 9 30 1.21 -00.32 '06.00 42 73 ISI BR 13005 015+ 41.2 5 16 1.07 42 114 ISI 8R 13006 015+ 32.2 6 20 0.77 ISI 7R 5686 015+ 32.2 6 20 0.89 -00.12 00.00 ISI BR 13006 015+ 34.5 5 16 0.75 ISI 7R 5686 015+ 34.5 5 16 0.95 -00.20 00.00 ISI 8R 13006. .015+ 43.3 6 20 0.79 46 88 ISI 8R 13007 015+ 30.4 7 23 1.16 ISI 7R 5687 015+ 30.4 8 26 1.42 -00.26 -3.00 47 84 ISI 8R 12885 015+ 39.7 5 16 0.88 4

ISI 7R 5538 015+ 39.7 8 26 1.16 -0L 28 -10.00 48 83 ISI SR 13101 UTS+ 6.1 7 23 1.09 S/N 7R- 6219 UTS+ 6.1 7 23 1.98 -00.89 00.00 48' 118 ISI 8R 12886 014+ 29.5 9 30 0.94 ISI 7R 5539 014+ 29.5 9 30 1.03 '- 00.09 00.00

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ATTACKMENT 1 REVISION O PAGE 5l THREE MILE ISLAND UNIT 1 APPENDIX 1 COMPONENT SG A OUTAGE : BR COMPARISON OF PREVIOUS EXAM RESULTS Row Tube Exas Exam Exam Indication Ind  % Ind Delta Delta Reason Out Numb Location Dog T.W. Volt Volts Depth ISI 8R 12886 014+ 30.3 5 16 0.61 ISI 7R 5539 014+ 29.5 9 30 1.03 -00.42 -14.00 49 23 ISI 8R 13009 015+ 42.6 10 33 0.77 ISI 7R 5689 015+ 42.6 11 39 0.86 -00.09 -6.00 49' 73 ISI BR 12887 UTS+ 5.0 9 30 1.69 ISI 7R 5540 UTS+ 5.0 9 30 2.11 -00.42 00.00 49 82 ISI 8R 12888 015+ 39.8 7 23 0.65 ISI 7R 5541 015+ 39.8 7 23 0.78 -00.13 00.00 49 85 ISI 8R 13010 015+ 33.6 5 16 1.00 ISI 8R 13010 015+ 34.7 5 16 0.70 ISI. 8R 13010 015+ 36.3 6 20 1.52 ,

ISI 7R 5690 015+ 36.3 7 23 1.54 -00.02 -3.00 50 1 ISI 8R 13011 014+ 8.7 7 23 1.30 ISI- BR 13011 014+ 10.1 8 26 1.42 ISI 7R 5691 014+ 10.4 8 26 1.31 00.11 00.00 1 ISI 8R -13011 014+ 10.4 8 26 1.10 ISI 7R 5691 014+ 10.4 8 26 1.31 -00.21 00.00 ISI 8R 13011 014+ 15.3 5 16 1.30 ISI 7R 5691 014+ 15.3 5 16 1.47 -00.17 00.00 50 102 ISI 8R 12889 015+ 16.6 9 30 1.34 12977 015+ 2.9 11 36 0.78 3 51 2 ISI 8R ISI 7R 5654 015+ 2.9 11 36 1.06 -00.28 00.00 '

ISI- BR 12977 015+ 3.1 6 20 0.86 ISI 7R 5654 015+ 2.9 11 36 1.06 -00.20 -16.00 ISI BR 12977 015+ 15.3 5 16 0.59 ISI 8R 12977 015+ 20.1 10 33 0.93 ISI 7R 5654 015+ 20.1 11 36 1.01 -00.08 -3.00 ISI 8R 12977 015+ 39.8 5 16 0.75 51 92 ISI 8R 13012 013+ 27.4 7 23 0.55 52 34 ISI BR 13102 013+ 23.0 5 16 0.96 8X1ACC 7R 6189 013+ 23.0 3 30 1.08 -00.12 -14.00

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• c ada ATTACHMDIT 1 REVISION O PAGE_d~2 THREE MILE ISLANDtUNIT 1 APPENDIX 1 COMPONENT SG A OUTAGE : 8R COMPARISON OF PREVIOUS EXAM RESULTS I

R;w Tube Exam Exam Exam Indication Ind  % Ind Delta Delta '

Reason Out Numb Location Dag T.W. Volt Volts Depth ISI 8R 13102 014+ 12.7 5 16 1.17 8X1ACC 7R 6189 014+ 12.5 5 16 1.13 00.04 00.00 ISI 8R 13102 014+ 31.4 10 33 0.93 8X1ACC 7R 6189 014+ 31.4 11 36 1.17 -00.24 ~3.00 52 110 ISI BR 13013 015+ 39.3 5 16 0.77 55 124 ISI 8R 13017 015+ 14.2 7 23 1.77 ISI 7R 5697 015+ 14.2 7 23 2.14 -00.37 00.00 56 93 ISI BR 13018 015+ 39.4 11 36 0.70 ISI 7R 5698 015+ 39.3 11 36 0.92 -00.22 00.00 57 63 ISI BR 12890 015+ 36.9 7 23 2.03 ISI 7R 5543 015+ 36.9 7 25 2.26 -00.23 ~2.00 57 65 ISI 8R 12891 015+ 37.5 8 26 1.15 ISI 7R 5544 015+ 37.5 8 26 1.12 00.03 00.00 ISI 8R 12891 015+ 40.5 8 26 0.70 58 94 ISI 8R 13020 015+ 44.0 9 30 0.80 ISI 7R 5700 015+ 43.9 5 16 1.03 -00.23 14.00 58 105 ISI 8R 13021 UTS+ 4.0 10 36 0.80 58 117 ISI 8R 13022 015+ 40.8 5 16 0.76 ISI 7R 5702 015+ 40.0 6 20 0.76 00.00 -4.00 58 120 ISI 8R 13023 015+ 39.7 7 23 0.63 60 65 ISI 8R 13025 015+ 37.3 9 30 1.14 7R 5705 015+ 37.3 9 30 1.08 00,06 00.00 ISI 60 125 ISI 8R 12892 015+ 25.3 6 20 1.19 ISI 7R 5545 015+ 25.5 6 20 1.22 -00.03 00.00 ISI 8R 12892 015+ 25.9 5 16 1.51 ISI 7R 5545 015' ~15.5 6 20 1.22 00.29 ~4.00 60 126 ISI 8R .027 014+ 24.3 5 16 0.70 ISI BR ,3027 014+ 26.3 5 16 1.00 ISI 7R 5707 014+ 26.1 5 16 1.03 -00.03 00.00 Continues Next Page =>

. .m ATTACHMENT 1 REVISION O PAGE A03 THREE MILE ISLANDIUNIT 1 APPENDIX #

COMPONENT : SG A OUTAGE 8R COMPARISON OF PREVIOUS EXAM RESULTS Rcw Tube Exam Exam Exam Indication Ind  % Ind Delta Delta Reason Out Numb Location Dag T.W. Volt Volts Depth ISI 8R 13027 014+ 26.7 5 16 0.80 j ISI 7R 5707 014+ 26.1 5 16 1.03 -00.23 00.00 J ISI 8R 13027 014+ 27.8 10 33 0.65 l

60 128 ISI 8R 13028 015+ 39.9 7 23 0.85  ;

ISI 7R 5708 015+ 40.0 5 16 0.94 -00.09 07.00 63 96 ISI 8R 12978 015+ 34.1 5 16 0.59 ISI 8R 12978 015+ 38.9 9 30 0.99 ISI 7R 5655 015+ 38.8 10 33 1.18 -00.19 -3.00 63 126 IFt SR 13103 015+ 22.8 10 33 0.95 8h4ACC 7R 6182 015+ 22.6 6 20 1.33 -00.38 13.00 64 129 ISI 8R 12893 015+ 46.0 11 36 1.48 ISI 7R 5546 015+ 46.0 11 36 1.68 -00.20 00.00 65 94 ISI 8R 12894 015+ 35.8 5 18 0.84 ISI 7R 5547 015+ 35.8 5 16 1.00 -00.16 02.00 4 66 1 ISI BR 12895 004+ 27.7 9 30 2.60 ISI 7R 5548 004+ 27.7 6 26 2.61 -00.01 04.00 66 127 ISI BR 12896 015+ 44.9 7 25 1.18 ISI 7R 5549 015+ 44.9 8 26 1.37 -00.19 -1.00 67 93 ISI 8R 12979 015+ 35.5 9 32 0.62 ISI 8R 12979 015+ 36.1 6 21 0.90 67 130 ISI 8R 13030 LTE+ 11.2 15 53 13.99 70 88 ISI 8R 13031 015+ 39.9 6 21 0.66 72 21 ISI 8R 13032 015+ 35.3 10 33 0.98 ISI 7R 5712 015+ 35.3 10 36 0.96 00.02 -3.00 72 86 ISI 8R 12897 UTS+ 3.8 11 36 1.19 ISI 7R 5550 UTS+ 3.8 11 36 1.66 -00.47 00.00 7

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. t 71- e, ATTACHMENT 1 REVISION O PAGE .54 THREE MILE ISLANDtUNIT 1 APPENDIX L COMPONENT t SG A OUTAGE 8R COMPARISON OF PREVIOUS EXAM RESULTS Rtw Tube Exam Exam Exam Indication Ind  % .Ind Delta Delta Reason Out Numb Location Dog T.W. Volt Volts Depth 74 28 ISI SR 12898 015+ 44.0 5 16 0.57 ISI 8R 12898 UTS+ 5.7 6 20 1.51 ISI 7R 5551 UTS+ 5.7 10 33 1.86 -00.35 -13.00 74 30 ISI 8R 12899 UTS+ 5.8 7 23 1.20 ISI 7R 5552 UTS+ 5.8 10 33 1.70 -00.50 -10.00 74 50 ISI 8R 12900 015+ 45.4 5 17 1.06 74 83 ISI 8R 13036 015+ 35.2 6 21 1.07 ISI 7R 5716 015+ 35.2 6 20 1.38 -00.31 01.00 75 81 ISI 8R 12980 015+ 35.4 7 25 1.36 ISI 7R 5657 015+ 35.4 10 33 1.59 -00.23 -8.00 1 75 .122- ISI- 8R 13037 015+ 44.9 5 18 1.39 ISI 7R 5717 015+ 44.9 7 23 1.65 -00.26 ~5.00 75 123 It'I 8R 12902 015+ 20.3 7 25 0.78 ISI 8R 12902 015+ 20.3 7 25 0.78 ISI 8R 12902 015+ 21.7 5 18 0.86 ISI 8R 12902 015+ 24.2 6 21 1.80 ISI 7R 5555 015+ 24.2 7 23 2.36 00.56 -2.00 77 -126 ISI 8R 12903 015+ 18.5 8 20 1.01 ISI 7R 5556 015+ 18.5 9 30 1.3d 90.33 -2.00 79 130 ISI 8R 12905 UTS+ 5.2 6 20 0.72 ISI 7R 5558 UTS+ 5.2 6 20 1.29 -00.57 00.00 81 92 ISI 8R 12906 015+ 42.3 9 32 1.05 ISI 7R 5559 015+ 42.3 9 30 1.25 -00.20 02.00 ISI 8R 12906 UTS+ 0.6 8 26 0.75 ISI 1R 5559 UTS+ 0.6 8 26 1.10 -00.35 00.00 82 32 ISI 8R 12907 UTS+ 6.5 7 23 1.70 ISI 7R 5560 UTS+ 6.5 9 30 2.19 -00.49 -7.00 82 128 ISI 8R 13042 015+ 7.9 7 21 0.96 Continues Next Page =>

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ATTACHMENT 1 REVISION O

PAGE 55 -

i THREE MILE ISLANDtUNIT 1 APPENDIX J{_

COMPONENT SG A OUTAGE : 8R COMPARISON OF PREVIOUS EXAM RESULTS Rcw Tube Exam Exas Exas Indication Ind  % Ind Delta Delta Reason Out Numb Location Dog T.W. Volt Volts Depth 83 17 ISI 8R 12908 015+ 32.3 7 23 0.99 i ISI 8R 12908 015+ 35.3 10 33 1.14 ISI 7R 5561 015+ 35.3 8 26 1.52 -00.38 07.00 83 29 ISI 8R 12983 015+ 34.0 5 16 0.72 ISI 7R 5661 015+ 34.0 5 16 0.89 -00.17 00.00 84 103 ISI 8R 13043 015+ 32.4 5 16 0.97 ISI 7R 5723 015+ 32.7 5 16 1.31 -00.34 00.00 87 1 ISI 8R 12910 012+ 7.0 9 30 2.93 ISI 7R 5563 012+ 7.1 6 20 3.99 -1.06 10.00 ISI 8R 12910 012+ 7.3 8 26 2.83 ISI 7R 5563 012+ 7.1 6 20 3.99 -1.16 06.00 87 20 ISI 8R 13044 015+ 33.0 5 16 0.92 ISI 7R 5724 015+ 33.0 7 23 1.05 -00.13 ~7.00 88 124 ISI 8R 13045 015+ 3.5 7 25 0.90 ISI 7R 5725 015+ 3.5 10 33 1.02 -00.12 -8.00

.90 80 ISI 8R- 12985 015+ 32.3 6 21 1.06 ISI 7R 5663 015+ 32.3 7 23 1.47 -00.41 -2.00 90 128 ISI 8R 12911 014+ 15.2 7 23 1.12 ISI 7R 5564 014+ 15.2 10 33 1.24 -00.12 -10.00 ISI BR 12911 014+ 15.3 6 20 1.04 ISI 7R 5564 014+ 15.2 10 33 1.24 -00.20 -13.00 ISI 8R 12911 015 0.3 8 26 2.09 ISI 7R 5564 015 0.2 7 23 3.00 -00.91 03.00 ISI 8R 12911 015 0.2 6 20 1.90 ISI 7R 5564 015 0.2 7 23 3.00 -1.10 -3.00 IS1 8R 12911 015+ 2.0 8 26 0.96 ISI 7R 5564 0154 2.0 6 20 1.42 -00.46 06.00 ISI 8R 12911 015+ 2.0 11 36 0.95 ISI 7R 5564 015+ -2.0 6 20 1.42 -00.47 16.00 91- 90 ISI 8R 13047 015+ 38.0 6 20 1.06 93 27 ISI 8R 12986- 015+ 38.0 8 26 0.96 ISI 7R 5664 015+ 37.9 5 16 1.04 -00.08 10.00 continues Next Page =>

ht ATTACHMENT 1 REVISION O PAGE 5G THREE MILE ISLAND UNIT 1 APPENDIX IE COMPONENT SG A

. OUTAGE 8R COMPARISON OF PREVIOUS EXAM RESULTS Row Tube Exam Exam Exam Indication Ind  % Ind Delta Delta Reason Out Numb Location Dag T.W. Volt Volts Depth 93 90 ISI 8R 13049 UTS+ 0.7 11 36 0.90 ISI 7R 5729 UTS+ 0.8 11 36 1.13 -00.23 00.00 93 121 ISI 8R 13106 015+ 34.9 6 20 0.81 RANSAM 7R 6649 015+ 34.8 6 20 1.00 -00.19 00.00 ISI 8R 13106 015+ 42.0 5 16 0.80 1 93- 123 ISI 8R 13107 015+ 6.7 5 16 0.86 WSC 7R 6271 015+ 7.0 8 26 0.95 -00.09 -10.00 1 ISI 8R 13107 015+ 7.0 7 23 0.86 WSC 7R 6271 015+ 7.0 8 26 0.95 -00.09 -3,00 94 113 ISI 8R 13108 015+ 33.6 10 33 1.09 8X1ACC 7R 6192 015+ 33.5 9 30 1.22 -00.13 03.00 94 117 ISI 8R 12987 015+ 44.2 8  ;- 1.44 ISI. 7R 5665 015+ 44.2 7 2J 1.94 -00.50 03.00 95 111 ISI GR 12913 015+ 40.4 7 23 1.23 ISI 7R 5566 015+ 40.3 7 23 1.49 -00.26 00.00 95 123 ISI 8R 12914 UTS+ 1.8 9 30 1.31 ISI 7R 5567 UTS+ 1.9 10 33 4.11 -2.80 -3.00 95 124 ISI 8R 13109 UTS+ 2.1 11 36 0.82 S/N 7R 6226 UTS+ 2.2 11 36 1.13 -00.31 00.00 ,

ISI 8R 13109 UTS+ 5.9 9 30 1.00 95 126 ISI 8R 13110 UTS+ 6.2 11 36 1.00 RANSAM 7R 6650 UTS+ 6.6 10 33 1.73 -00.73 03.00 ISI 8R 13110 UTS+ 6.8 8 26 1.90 RANSAM 7R 6650 UTS+ 6.6 10 33 1.73 00.17 -7.00 96 32 ISI 8R 12915 015+ 37.6 7 23 1.68 ISI 7R 5568 015+ 37.5 10 33 1.84 -00.16 -10.00 ISI 8R 12915 015+ 43.2 10 33 1.08 ISI 7R 5568 015+ 43.2' 9 30 1.23 -00.15 03.00 l ISI 8R 12915 UTS+ 4.0 5 17 1.24 96 114 ISI 8R 13050 015+ 5.7 6 20 0.90 i

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I' ATTACHMENT 1 h REVISION O i PAGE l THREE MILE ISLAND UNIT 1 APPENF(IXL U

! COMPONENT : SG A

! OUTAGE 8R C0KPARISON or PREVIOUS EXAM RESULTS Row Tube Exas Exam Exam Indication Ind  % Ind Delta Delta Reason out Numb Location Dag T.W. Volt Volts Depth i 98' 93 ISI SR 12916 UTS+ 6.3 5 16 1.27 l

[ ISI 7R 5569 UTG+ 5.8 7 23 1.45 -00.18 -7.00 99 1 ISI 8R 12917 004 -3.7 7 16 0.71 4 ISI 8R 12917 004+ 23.8 7 23 1.27 j ISI BR 12917 005+ 12.5 5 16 1.56

<- ISI SR 12917 008+ 5.0 9 30 0.93 h ISI 7R 5570 008+ 5.0 7 23 1.16 -00.23 07.00 ISI 8R 12917 008+ 5.1 10 33 0 91 ISI 7R 5570 008+ 5.0 7 23 1.16 -00.24 10.00 2 99 17 ISI 8R 12918 015+ 33.0 9 30 1.21 L ISI- 7R 5571 015+ 32.9 8 26 1.78 -00.57 04.00 C

F 200 122 ISI 8R 12919 UTS+ 4.8 7 23 1.42 --

i ISI 7R 5572 UTS+ 4.8 10 33 2.08 -00.66 -10.00 i

[ 101. 16 ISI BR 12920 015+ 30.9 6 20 1.14 ISI 7R 5573 015+ 30.9 8 26 1.18 -00.04 -6.00 j.

! 101' '51 ISI BR 12921 UTS+ 1.3 11 36 1.11

ISI 7R 5574 UTS+ 1.4 11 '36 1.59 -00.48 00.00s

ISI 8R 12921 UTS+ 4.0 11 36 1.06 h -ISI 7R 5574 UTS+ . 4. 0 10 33 1.85 -00.79 03.00

[ ISI 8R 12921 UTS+ 4.9 6 20 1.16 L IEI 7R 5574 UTS+ 4.0 10 33 1.85 -00.69 -13.00

~101 61- ISI 8R- 12923 015+ 29.3 6 20 2.23 ISI -7R_ 5576 015+ 29.4 10 .33 2.16 00.07 -13.00

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b 103 121 ISI .8R 12924 003+ 16.3 93 27 0.66 ISI 7R 5577 003+ 16.3 97 L14 0.78 -00,12 13.00 ISI 8R _12924 014+ 12.2 10 3 3 -- 0.96 ISI 7R 5577 014+.12.2 11 36 1.29 -00.33 -3.00 i- ISI 8R 12924 014+ 15.6 7 23 0.98 1.31-i- ISI 7R 5577' 014+ 15.6 6 20 -00.33 03.00 ISI 8R 12924 015+ 43.8 9 30 2.16 i ISI 7R 5577 015+ 44.1 7 23 1.20- 00,96 07.00 4 I ISI BR 12924 015+ 44.1 6 20 1.10 l ISI 7R 5577 015+ 44.1 7 23 1.20 -00.10 -3.00-i i? ' Continues Next Page =>-

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ATTACRMENT 1 REVISION O PAGE 58 THREE MILE ISLAND: UNIT 1 APPENDIX 31 COMPONENT : SG A QUTAGE : 8R COMPARISON OF PREVIOUS EXAM RESULTS Rsw Tube Exam Exam Exam Indication Ind  % Ind Delta Delta Reason out Numb Location Deg T.W. Volt Volts Depth 104 75 ISI 8R 12988 015+ 29.4 8 26 0.67 ISI 7R 5666 015+ 29.4 6 20 0.93 -00.26 06.00 ISI 8R 12988 015+ 33.1 5 16 1.05 ISI 8R 12988 015+ 39.5 8 26 1.09 ISI 7R 5666 015+ 39.4 8 26 1.42 -00.33 00.00 104 121 ISI 8R 11925 014+ 3.0 6 20 1.50 ISI 7R 5578 014+ 3.0 8 26 1.81 -00.31 -6.00 ,

ISI 8R 12925 015+ 45.6 14 46 1.12 l ISI 7R 5578 015+ 45.6 9 30 1.69 -00.57 16.00 105 94 ISI BR 12926 014+ 0.0 90 28 1.09 ISI 7R 5579 014+ 0.0 89 25 1.90 -00.81 03.00 ISI 8R 12926 014+ 0.0 90 23 1.14 ISI 7R 5579 014+ 0.0 89 25 1.90 -00.76 -2.00 106 2 ISI 8R 12927 015+ 10.3 7 23 0.92 107 2 ISI 8R 12929 015+ 33.4 8 26 1.27 ISI 7R 5582 015+ 33.4 6 20 2.04 -00.77 06.00 ISI 8R 12929 015+ 37.4 7 23 1.40 107 116 ISI 8R 13056 015+ 43.2 6 20 0.66 ISI 7R 5736 015+ 43.7 6 20 0.97 -00.31 00.00 107 120 ISI BR 12931 UTS+ 3.6 6 20 1.18 ISI 7R 5584 UTS+ 4.6 6 20 1.94 -00.76 00.00 ISI 8R 12931 UTS+ 4.0 5 16 1.25 ISI 7R 5584 UTS+ 4. 6 6 20 1.94 -00.69 -4.00 ISI BR 12931 UTS+ 5.0 9 30 1.10 ISI 7R 5584 UTS+ 4.6 6 20 1.94 -00.84 10.00 110 2 ISI 8R 13059 015+ 28.1 5 16 1.21 ISI 7R 5739 015+ 28.1 5 16 1.61 -00.40 00.00 110 52 ISI 8R 12933 015+ 40.0 9 30 1.13 ISI 7R 5586 015+ 40.0 9 30 1.46 -00.33 00.00 ISI BR 12933 UTS+ 1.1 6 20 1.25 ISI 7R 5586 UTS+ 1.1 11 36 1.75 -00.50 -16.00 Continues Next Page =>

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1 ATTACHMENT 1 REVISION O PAGE _59 4 THREE MILE ISLAND UNIT 1 APPEND 1X JI; COMPONENT : SG A

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OUTAGE : 8R COMPARISON OF PREVIOUS EXAM RESULT' Row Tube Exas Exam Exam Indication Ind Reason  % 2nd Delta Delta ISI out Numb Location Dog T.W. Volt Volts Depth BR 12933 UTS+ 2.7 7 23 1.13 ISI 7R 5586 UTS+ 2.7 11 36 1.32 -00.19 -13.00 111 51 ISI 8R 13061 015+ 38.7 8 27 1.61 ISI .7R 5741 015+ 38.7 11 .36 1.87 -00.26 -9.00 112 116 ISI 8R 12935 008+ 31.3 6 20 0.62 ISI 7R 5588 008+ 31.1 7 23 ISI 1.11 -00.49 -3.00 SR 12935 009+ 10.0 5 16 0.93 ISI 8R 12935 012+ 22.1 7 23 1.39 ISI 7R 5588 012+ 22.2 10 33 1.75 ISI 8R 12935 -00.36 -10.00 013+ 5.1 5 16 1.41 l ISI 7R 5588 013+ 5.4 7 23 ISI 8R 12935 013+

1.17 00.24 -7.00 1 5.6 7 23 0.87-ISI -7R 5588 013+ 5.4 7 23 1.17 -00.30 00.00 113 104 ISI 8R 12989 015+ 21.9 6 20 0.87 ISI 7R 5667 015+ 21.9 8 26 1.05 -00.18 -6.00 114 93 ISI 8R 12936 015+ 40.9 ISI 7R 6 20 1.33 5589 015+ 40.8 9 30 1.58 -00.25 -10.00 114 113 ISI 8R 12990 013+ 29.4 ISI 7R 5 16 1.98 5668 013+ 29.5 7 23 2.78 -00.80 -7.00 815 26 ISI 8R 12937 015+ 25.6 11 36 1.12 ISI- 7R 5590 015+ 25.6 11 36 1.55 -00.43 00.00 115 109 ISI 8R 12938 UTS+

7R 5.1 7 23 2.84 ISI. 5591 UTS+ 4.8 9 30 3.50 -00.66 -7.00 116 109 ISI 8R 12939 015+ 33.2 ISI 7R 6 20 1.01 5592 015+ 33.4 6 20 1.58 -00.57 00.00 ISI 8R- 12939 015+ 36.2 7 23 1.12 ISI 7R 5592 015+ 36.5 8 26 1.59 -00.47 -3.00 117 24 ISI BR 13063 015+ 33.8 ISI 5 16 1.59 8R 13063 015+ 42.4 5 16 2.00 118 67 ISI 8R 12991 015+ 38.4 9 30 1.09 ISI 7R 5669 015+ 37.8 8 26 1.43 -00.34 04.00 Continues Next Page =>

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ATTACHMENT 1 REVISION O PAGE _ (,0 THREE MILE ISLANDIUNIT 1 APPENDIX~ IL COMPONENT SG'A OUTAGE : BR COMPARISON OF PREVIOUS EXAM RESULTS Rcw Tube Exam Exam Exam Indication Ind  % Ind Delta Delta

! Reason out Numb Location Dag T.W. Volt Volts Depth 119 77 ISI BR 12940 015+ 29.1 6 20 1.72

) ISI 7R 5593 015+ 29.5 10 33 1.90 -00.18 -13.00 119 107 ISI BR 12941 015+ 38.6 5 16 1.81 120 67 ISI 8R 12942 015+ 36.3 7 23 1.23 ISI 7R 5595 015+ 36.1 11 36 1.45 -00.22 -13.00 122 30 ISI BR 12945 UTS+ 0.8 8 26 0.86 ISI 7R 5598 UTS+ 0.8 8 26 1.45 -00.59 00.00 123 85 ISI 8R 13094 015+ 45.1 6 20 1.02 ISI 7R 5749 015+ 45.0 8 26 1.50 -00.48 -6.00 124 1 ISI 8R 12946 012+ 23.6 7 23 1.57 ISI 7R 5600 012+ 23.4 6 20 1.94 -00.37 03.00 124 100 ISI BR' 13112 012+ 30.9 5 16 0.79 8X1ACC 7R 6201 012+ 30.9 7 23 0.75 00.04 -7.00 ISI 8R 13112 013+ 8.8 7 23 0.63 125 82 ISI BR 13095 015+ 34.2 5 16 0.69 ISI 7R 5750 015+ 33.9 5 16 1.17 -00.48 00.00 125 97 ISI- 8R 13113 015+ 41.0 9 30 0.96 8X1ACC 7R 6195 015+ 41.4 9 30 0.96 00.00 00.00 125 98 ISI 8R 13079 015+ 29.7 9 30 0.98 ISI 7R 5603 015+ 29.9 11 36 1.13 -00.15 -6.00 126 94 ISI. 8R 13080 015+ 35.8 10 33 2.14 ISI 7R 5605 015+ 36.2 11 36 3.11 -00.97 -3.00 126 97 ISI SR 13081 015+'26.6 5 16 1.05 ISI 7R 5606 015+ 26.7 '9 30 1.47 -00.42 -14.00 127 94 ISI 8R 13082 UTS+ 3.6 11 36 1.54

! ISI 7R 5607 UTS+ 3.6 11 36 1.90 -00.36 00.00 130 41 ISI 8R 12948 015+ 27.8 7 23 1.84 J ISI 7R 5609 015+ 27.8 9 30 1.85 -00.01- -7.00 Continues.Next Page =>

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. ATTACHMDG 1 REVISION O PAGE _6>l THREE MILE ISLAND UNIT 1 APPDIDIX 1 COMPONENT SG A OUTAGE : BR COMPARISON OF PREVIOUS EXAM RESULTS Row Tube Exam Exam Exam Indication Ind  % Ind Delta Delta Reason out Numb Location Dag T.W. Volt Volts Depth 130 46 ISI BR 13070 015+ 22.7 5 16 1.51 ISI 7R 5754 015+ 22.7 8 26 1.62 -00.11 -10.00 130 60 ISI BR 13114 015+ 33.2 11 36 0.81 8X1ACC 7R 6203 015+ 33.6 8 26 0.99 -00.18 10.00 130 73 ISI BR 13083 015+ 41.8 11 36 0.75 131 1 ISI 8R 13115 013+ 13.3 5 16 1.03 SECSAM 7R 7593 013+ 13.7 5 16 1.25 -00.22 00.00 ISI 8R 13115 013+ 24.9 10 33 1.09 SECSL' 7R 7593 013+ 25.6 9 30 1.54 -00.45 03.00 131 82 IST BR 13077 015+ 0.0 10 33 1.02 IS BR 13077 015+ 15.6 11 36 1.53 ISI 7R 5611 015+ 15.8 8 26 1.61 -00.08 10.00 ISI 8R 13077 015+ 38.0 11 36 1.46 ISI 7R 5611 015+ 38.0 9 30 2.02 -00.56 06.00 ISI BR 13077 015+ 43.1 11 36 1.25 ISI 7R 5611 015+ 43.1 8 26 1.87 -00.62 10.00 132 36 ISI 8R 13071 015+ 33.7 5 16 1.10 ISI 7R 5755 015+ 33.7 6 20 1.26 -00.16 -4.00 134 1 ISI 8R 12950 004+ 2.3 9 30 1.13 ISI 7R 5614 004+ 24 9 30 1.35 -00.22 00.00 ISI 8R 12950 004+ 3.2 6 20 0.91 ISI 7R 5614 004+ 2.4 9 30 1.35 -00.44 -10.00 134 65 ISI 8R 13097 015+ 37.5 9 30 1.55 ISI 7R 5756 015+ 37.6 7 23 1.99 -00.44 07.00 135 2 ISI 8R 12951 013+ 17.3 5 16 0.98 ISI 7R 5616 013+ 17.3 5 16 1.30 -00.32 00.00 ISI BR 12951 013+ 34.0 6 20 0.74 ISI 7R 5616 013+ 34.0 5 16 1.07 -00.33 04.00 ISI BR 12951 014 0.2 10 33 0.88 ISI 7R 5616 014 0.2 6 20 0.98 -00.10 13.00 ISI 8R 12951 015+ 11.6 9 30 0.80 ISI 7R 5616 015+ 11.7 9 30 1.12 -00.32 00.00 Continv?s Next Page =>

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ATTACHMENT 1 REVISION O PAGE _(cZ _

THREE MILE ISLAND: UNIT 1 APPENDIX .17__-

COMPONENT : SG A OUTAGE : BR COMPARISON OF PREVIOUS EXAM RESULTS Row Tube Exam Exam Exam Indication Ind  % Ind Delta Delta Reason Out Numb Location Deg T.W. . Volt Volts Depth ISI 8R 12951 015+ 35.8 9 30 1.10 ISI 7R 5616 015+ 35.9 7 23 1.(9 -00.39 07.00 135 5 ISI 8R 12952 014+ 27.5 6 20 1.19 ISI 7R 5617 014+ 27.5 8 26 1.40 -00.21 -6.00 136 2 ISI SR 12953 014+ 9.2 5 16 1.08 ISI 7R 5618 014+ 9.3 10 33 1.12 -00.04 -17.00 136 5 ISI 8R 12954 015+ 33.7 5 16 0.90 ISI 8R 12954 015+ 39.1 10 33 1.37 ISI 7R 5620 015+ 39.3 9 30 1.54 -00.17 03.00 136 6 ISI 8R 12955 015+ 36.2 9 30 1.60 ISI 7R 5621 015+ 35.9 11 36 1.56 00.04 -6.00 136 69 ISI 8R 13084 015+ 8.9 6 20 0.69 ISI 8R 13084 015+ 11.6 8 27 1.09 ISI 7R 5622 015+ 11.6 9 30 1.29 -00.20 -3.00 ISI 8R 13084 015+ 13.1 7 23 0.99 ISI 7R 5622 015+ 13.1 6 20 1.16 -00.17 03.00 ISI BR 13084 015+ 33.4 10 33 1.11 ISI 7R 5622 015+ 33.4 10 33 1.23 -00.12 00.00 ISI 8R 13084 015+ 37.6 11 36 2.08 ISI 7R 5622 015+ 37.6 7 23 2.64 -00.56 13.00 138 65 ISI 8R 13085 UTS+ 5.9 11 36 1.73 ISI 7R 5623 UTS+ 6.1 11 36 2.28 -00.55 00.00 139 67 ISI 8R 13117 015+ 45.8 11 36 1.44 8X1ACC 7R 6185 015+ 45.9 10 33 1.63 -00.19 03.00 139 71 ISI 8R 13086 013+ 25.9 11 36 1.77 ISI 7R 5624 013+ 26.0 11 36 2.14 -00.37 00.00 ISI 8R 13086 015+ 41.4 9 30 1.03 ISI 7R 5624 015+ 41.4 6 20 1.29 -00.26 10.00 140 67 ISI 8R 13087 UTS+ 3.4 10 33 1.09 ISI 7R 5625 UTS+ 3.4 10 33 1.32 -00.23 00.00 141 60 ISI 8R 13088 015+ 44.1 9 30 0.87 Continues Next Page =>

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

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.- ,- my ATTACHMENT 1 REVISION O h PAGE G3 THREE MILE ISLAND UNIT 1 APPENDIX *g[_

COMPONENT : SG A .

OUTAGE : BR COMPARISON OF PREVIOUS EXAM RESULTS e

Row Tube Exam Exam Exam Indication Ind  % Ind Delta Delta Reason out Numb Location Dog T.W. Volt Volts Depth-ISI BR 13088 015+ 45.8 8 27 1.03 ISI 7R- 5626 015+ 45.6 7 23 1.00 00.03 04.00 i

.143 55 ISI 8R 13098 UTS+ 3.2 lb 33 0.98 <

ISI 7R 5627 UTS+ 3.2 10 33 1.84 -00.86 00.00 h I145. 150 ISI 8R 13089 UTS+ 4.2 10 33 3.47 i ISI -7R 5628 UTS+ 4.2 7 23 4.56 -1.09 10.00

'146 1- ISI 8R 12956 004+ 35.6 11 36 1.47 ISI '7R 5629 004+ 35.8 11 36 1,81 -00.34 00.00 i t f 146- 3- ISI BR: 13072 012+ 26.4 7 23 0.74 i ISI .7R 5757 012+ 26.4 11 36 1.01 -00.27 r13.00 t

146- 43 ISI 8R 13090 015+ 33.9 11 36 0.85 ISI 7R 5630 015+ 34.0 10 33 1.01 -00.16 03.00 ISI 8R 13090 015+ 35.2 11 36 0.83 ISI 7R 5630 015+ 35.2- 11 36 1.07 -00.24 00.00 L ISI 8R 13090 015+ 3o.2 9 30 0.85 '

ISI 7R 5630 015+:35.2 11 36 1.07 -00.22 -6.00'

]l 6 20 0.83

'ISI BR 13090 015+ 40.5  :

146 50 ISI 8R- 13091 003+ 35,.8 11 36 1.74 ISI 7R 5631 003+ 35.8 9 30 2.15 -00.41 06.00 147 2 -ISI- 8R -12957 012+ 10.4 -7 23 1.12 ISI 7R 5632 012+ 10.5

- 11- 36 -1.17 -00.05 -13.00 4

147! 15 ISI 8R 13075 015+ 20.2.. 5 16 1.'04 4 4

, ISI 7R 5760= 015+-20.3 5 16 1.22.~-00.18 00.00 ,

150 8 ISI 8R 12992 015+ 3.5 7 23 0.94.

ISI 7R 5672 015+ 3.5 8 26 1.07- -00,13 -3.00 -

ISI BR 12992 015+ 18.4- '7 23 0.92 ISI~ 7R 5672 015+118.5 6- 20 1.12 -00.20 03.00

--- T o t a l- T u b e s I n c l u d e d ' s .- 192 Total Indications : 359-Voltage Summary _-: 29 i Tubes Compared : .

167 Number Increased::

-Indications Compared : 262 Number Decreased : ~ 231-Number No Change : 2

' Mean Change : - 0.26 Std.-Dev. : 0.36-L Percent Summary-Tubes Compared :- 167 Number Increased : 99- '

r 101 i Indications-Compared : 262 Number Decreased :

Humber No Change : 62-Mean Change : 0.02

. 7.55

<- Std. Dev. :

. .._ ._ _ . _ . - _ . _ - - - _.,... _ -, _ .J

. -wu;

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! ATTACHMENT 1

REVISION O PAGE _G4 THREE MILE ISLAND

UNIT 1 APPEND'.X 1 COMPONENT SG B -

OUTAGE : BR COMPARISON OF PREVIOUS EXAM RESULTS Pow Tube Exam Exam Exam Indication Ind  % Ind Detta Delta Rearson out Numb Location Dag T.W. Volt Volte Depth 1 11 ISI 8R 11420 UTS+ 2.9 7 23 1.19 ISI 7R 6217 UTS+ 2.9 8 26 1,47 -00.28 -3.00 6 4 ISI 8R 11443 UTS+ 5.3 7 23 2.51 ISI 7R 6244 UTS+ 5.3 7 23 2.79 -00.28 00.00 7 42 ISI 8R 11421 012+ 11.9 7 23 0.87 ,

ISI 7R 6218 012+ 11.9 5 16 1.06 -00.19 07.00 ISI 8R 11421 013+ 11.2 10 33 0.98 ISI 7R 6218 013+ 11.2 11 36 1.10 -00.12 -3.00 ISI 8R 11421 014+ 22.9 10 33 0.82 .

9' 22 ISI 8R 11422 015+ 45.0 7 23 1.22 <

ISI 7R 6219 015+ 45.0 8 28 1.36 -00.14 -5.00 19 44 ISI 8R 11423 015+ 41.8 8 26 1.78 ISI 7R 6220 015+ 41.8 5 16 2.01 -00.23 10.00 84 63 ISI 8R 11424 013+ 14.0 11 36 0.86 ISI- 7R 6221 013+ 14.0 13 43 0.93 -00.07 -7.00 ISI 8R 11424 014+ 9.4 11 36 0.64 ISI 7R 6221 014+ 9.4 11 36 0.79 -00.15 00.00 30 13 ISI 8R 11425 015+ 45.2 10 33 2.26 ISI 7R 6222 015+ 45.2 10 36 2.27 -00.01 -3.00 30 71 IS1 BR 11426 015+'32.0 5 16 1.76 ISI- 7R 6223 015+ 32.6 8 26 1.40 00.36 -10.00 ISI 8R 11426 015+ 32.6 9 30 1.17 ISI 7R 6223 015+ 32.6 8 26 1.40 -00.23 04.00

> 60 83 ISI OR 11427 015+ 39.3 31 36 1.09 ISI 7R 6225 015+ 39.3 10 33 1.28 -00.19 03.00 64 83' ISI 8R 11428 015+ 31.6- 10 33 1.22 ISI 7R 6226 015+ 31.6 10 33 1.26 -00.04 00.00 11429 UTS+ 10 33 1.64

, -104 77 .ISI 8R 3.9 ISI 7R 6227 UTS+ 3.8 7 23 1.94 -00.30 10.00 Continues Next Page =>

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. t q ATTACHMENT 1 REVISION O PAGE._G5 THREE MILE ISLANDtUNIT 1 APPENDIX g((

COMPONENT : SG B +

OUTAGE : BR COMPARISON OF PREVIOUS EXAM RESULTS Row Tube Exam Exam Exam Indication Ind  % Ind Delta Delta Reason out Numb Location Dog T.W. Volt Volts Depth 105 8 ISI 8R 11430 UTS+ 6.6 10 33 1.18 ISI 7R 6228 UTS+ 6.5 6 20 1.55 -00.37 13.00 109 11 ISI 8R 11431 015+ 44.1 6 20 0.96 ISI 7R 6229 015+ 44.8 8 26 1.17 -00.21 -6.00 ISI 8R 11431 015+ 44.8 10 33 1.17 ISI 7R 6229- -015+ 45.7 6 20 1.11 00.06 13.00 ISI 8R 11431 015+ 45.7 6 20 1.00 ISI 7R 6229 015+ 45.7 6 20 1.11 -00.11 00.00 ISI' 8R 11431 UTS+ 5.0 11 36 1.00 l ISI 7R 6229 UTS+ 5.0 8 26 1.37 -00.37 - 10.00  !

109 112 ISI SR 11432 003+ 30.7 5 17 1.22 ISI 8R 11432 004+ 0.0 7 25 1.74 ISI 7R 6230- 004+ 0.0 6 20 1.97 -00.23 05.00 ISI 8R 11432 004+ 4.9 10 33 1.23 ISI BR 114'J2 005+ 20.5 5 17 0.85 H' ISI 8R 11432 006+ 3.5 5 17 2.38 ISI 7R 6230 006+ 3.5 5 16 2.33 00.05 01.00 i 132 44 ISI 8R 11433 UTS+ 2.5 6 20 1.62 ISI 7R 6231 UTS+ 2.5 6 20 1.74 -00.12 00.00 124 36 ISI 8R 11434 015+ 45.1 10 33 1.17 ISI 7R 6232 015+ 45.1 8 26 1.32 -00.15 07.00 136 40 11435 20 1.48 ISI 8R 015+ 40.5 6 ISI 7R 6233 015+ 40.5 6 20 1.70 -00.22 00.00 138 52 ISI- BR- 11436 006+ 0.6 65 52 1.67 ISI 7R 6234 006+ 0.6 65 52 2.53 -00.86 00.00 143 43 ISI 8R 11437 010+ 7.7 7 23 0.76 ISI 7R 6235 010+ 7.7 6 20 0.91 -00.15 03.00

-144 49 ISI 8R 11438 006+ 0.0 71 43 1.39 i ISI 7R 6236 006+ 0.5 74 40- 1.70 -00.31 03.00 j 146 37 ISI 8R 11439 012+ 7.2 10 33 0.99 ISI 7R 6237 012+ 7.2- 8 26 1.04 -00.05 07.00 Continues Next Page => 1

-i mm__________._.______m.___ _ _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

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

%. {

--... l ATTACHMENT'l 4 REVISION 0~

PAGE. 66 THREE MILE ISLAND: UNIT'1 APPENDIX 1 COMPONENT.* SG B '

, OUTAGE-: 8R COMPARISON OF PREVIOUS-EXAM RESULTS' Row Tube- Exam Exam Exant Indication Ind  %. Ind - Delta Delta Reason Out Numb Location- Dog T.W.- Volt Volts Depth' 1

150 ~ 25 ISI 8R 11440' 007+ 25.4 7- 23 -1.02 ISI 73 6238' 007+ 25.4 5 .16 1.08 - -00.06 07.00 ,

. -ISI ' 8R= 11440 008+ 37.2 7: 23 0.66

'ISI BR 11440: 014+ 6.1 8 26 0.60 ISI 8R '11440. 015+ 19.6 9 30 0.76

. Total Tubes Included : 22' Total Indications : 36-Voltage Summary :-

Tub 3s compared : 22 Number Increased : 3-Indications Compared : 29 Number Decreased .

26 Number No-Change : O e Mean Change :- - 0.17 Std. Dev.- 0.'19 ,

1 Percent Summary :

' Tub s Compared. - 22 Number Increased : 15 i

-Indications Compared 3 29 Number Decreased : 7 Number No C Jnge : 7  :

Mean Change 2.28

-Std. Dev. S.76 u _

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. ~my l ATTACHMENT 1 REVISION O PAGE (o ~/

APPENDIX X Appendix III TUBES PLUGGED DURING OUTAGE 8R t

- . _ _ . . ~ ~

ATTACHMENT 1 REVISION O PAGE . 69 THREE MILE ISLAND UNIT 1 .

I-COMPONENT SG A.

OUTAGE : BR TUBES TO BE PLUGGED a

. Row Tube

~

Exam. Exam E.t*m Indication Ind  % Ind Circ Ind Per Reason Tech . Rekl. Location Dog T.W. Volt Ext Des Ext

-3 25 ISI 540-MIZ18 008 015 + 41.3 10 33 0.89 LTE 3 25 ISI 540-MIZ18 008 015 + 41.7 11 36 1.10 LTE 3 25 ISI 540-MIZ18 008 015 + 42.8 16 53 1.03 LTE 3 25 ISI 540-MIZ18 008 015 + 43.1 17 56 1.54 LTE 3 25- CONFIR 8X1-ABS 062 015 + 43.3 0 0.29 1 014 3 25 ISI 540-MIZ18 000 015 + 43.5 10 33 0.89 LTE 3 25 CONFIR 8X1-ABS 062 015 + 43.7 356 0.33 1 014

'4 28 ISI 540-MIZ18 008 015 + 21.8 11 36 1.16 LTE

~4 28 ISI 540-MIZ18 008 015 + 23.2 5 16' O.82 LTE 4 28 ISI 540-MIZ18 008 015 + 27.6 .5 16 1.63 LTE '

4 28 ISI. 540-MIZ18 008 015 + 30.6 15 50 1.47- LTE 28 CONFIR 8X1-ABS 062 015 + 30.8 357 0.48 1 013

~4

.44 LANE-8 8X1-ABS 058 + 0.0 0 0.00 0 014 73 002

'73. 44 CONFIR 8X1-ABS 062 004 + 0.5 90 0.43 1

44 LANEWE:510-MIZ18 032 004 + 0.5 86 52 1.48 LTE

73 LTE 78 19 LANEWE.510-MIZ18'055- + 0.0 0 0 0.00 LANE-8 8X1-ABS. 060 UTS + 0.0 61 0.62 2 014 78 19 78 19 CONFIR 9RPC 065 UTS + 0.3 39 0 6.06 SAI UTS 540-MIZ18 011 014 + 3.0 6 20 1.50 'LTE

.104' 121 ISI 0.41 1 014 104 121 CONFIR 8X1-ABS. 062 015 + 45.6 2 540-MIZ18 011 015 + 45.6 14 46 1.12 .LTE 104 121 ISI Total. Tubes Examined : 5 Totalt Indications : 21 i

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e, ATTACHMENT.1 REVISION O PAGE 69 THREE MILE ISLAND: UNIT 1

• APPENDIX E COMPONENT : SG B 1 OUTAGE : 8R '

TUBES TO BE PLUGGED Row Tube Exam Exam Exam Indication Ind  % Ind. Circ Ind Per Reason Tech- Real Location Dog T.W. Volt Ext Des Ext 77 12 LANEWE 510-MIZ18 021 UTS + 0.0 25 0 1.70 DTS LTE 77 12 CONFIR MRPC 036 UTS + 0.1 84' O 0.62 SAI UTS 77 12 LANE-8 8X1-ABS 029 UTS + 0.1 66 0.69 1 014

-133 1 CONFIR 540-MIZ18 027 UTS + 6.4 18 60 3.76 LTE 123 1 CONFIR 8X1-ABS 034 UTS + 6.4 13 1.30 2 015 123 1 RANSAM 510-MIZ18 010 UTS + 6.4 19 63 3.65 LTE-

'138 52 CONFIR MRPC 036 006 0.6 48 0 1.00 SAI 006 138 52 CONFIR 8X1-ABS 034 006 + 0.6 60 0.31 1 004 138 52 ISI 540-MIZ18 003 006 + 0.6 65 52 1.67 LTE

' Total Tubes Examined : 3

. Total Indications : 9 l

1

- ATTACHMENT 1 REVISION O PAGE. 10 APPENDIX F Appendix-IV INDICATIONS 20 % THROUGE WALL OR GREATER

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s__-a--_-__._ , _ _ _ _ ____,_ _ . _

, . t q ATTACHMENT 1

( REVISION O PAGE 7l THREE MILE ISLAND UNIT 1 APPENDIX 3 COMPONENT SG A -

OUTAGE : 8U1 INDICATIONS GE 20 % THROUGH WALL INCLUDES 8X1-ABS FOR INDICATIONS GE 40 %

Rcw Tube Exam Exam Exam Indication Ind  %/ Ind Per Exam Reason Tech Real Location Dog coile Volt Ext Number 1 4 ISI 540-MIZ18 014 013+ 6.5 7 23 1.95 LTE 12856 ISI 540-MIZ18 014 013+ 10.6 6 20 1.10 LTE 12856 ISI 540-MIZ18 014 013+ 12.0 10 33 1.08 LTE 12856 ISI 540-MIZ18 Olt 015+ 36.0 10 33 2.22 LTE 12856 2 6 ISI 540-MIZ18 014 015+ 24.5 8 26 1.11 LTE 12857 ISI 540-MIZ18 014 015+ 25.2 10 33 1.26 LTE 12857 ISI 540-MIZ18 014 015+ 28.9 8 27 1.72 LTE 12857 ISI 540-MIZ18 014 015+ 35.8 9 30 1,29 LTE 12857 ISI 540-MIZ18 014 015+ 36.4 6 20 3.83 LTE 12857 ISI 540-MIZ12 014 015+ 39.4 6 20 2.30 LTE 12857 ISI 540-MIZ18 014 015+ 40.6 8 27 1.53 LTE 12857 2 22 ISI 540-MIZ18 008 014+ 21.9 9 30 1.06 LTE 12993 ISI 540-MIZ18 008 014+ ?9.4 8 26 0.73 LTE 12993 2 25 ISI 540-MIZ18 008 004+ 13.3 6 20 1.59 LTE 12858 ISI 540-MIZ18 008 012+ 35.9 1 36 0.95 LTE 12858 ISI 540-MIZ18 008 013+ 3.2 6 20 0.73 LTE 12858 ISI 540-MIZ18 008 013+ 9.3 11 36 1.23 LTE 12858 ISI 540-MIZ18 008 013+ 10.3 10 33 1.17 LTE 12858 3 17 ISI 540-MIZ18 014 015+ 32.9 8 27 1.08 LTE 12959 ISI 540-MIZ18 014 UTS+ 0.4 6 20 0.80 LTE 12959 3 25 ISI 540-MIZ18 008 015+ 41.3 10 33 0.89 LTE 12859 ISI 540-MIZ18 008 015+ 41.7 11 36 1.10 LTE 12859 ISI 540-MIZ18 008 015+ 42.8 16 53 1.03 LTE 12859 CONFIR 8X1-ABS 062 015+ 43.7 356 1 0.33 014 15888 CONFIR 8X1-ABS 062 015+ 43.3 0 1 0.29 014 15888 ISI 540-MIZ18 008 015+ 43.1 17 56 1.54 LTE- 12859 CONFIR BX1-ABS 062 015+ 43.7 356 1 0.33 014 15888 CONFIR 8X1-ABS 062 015+ 43.3 0 1 0.29 014 15888 ISI 540-MI"18 008 015+ 43.5 10 ~1 0.89 LTE 12859 4 28 ISI 540-MIZ18 008 015+ 21.8 11 36 1.16 LTE 12860 Continues Next Page =>

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1 ATTACHMENT 1 REVISION O PAGE 72.

THREE MILE ISLANDtUNIT 1 APPENDIX 17 COMPONENT t SG A +

OUTAGE 801 INDICATIONS GE 20 % THROUGH WALL INCLUDES 8X1-ABS FOR INDICATIONS GE 40 %

R:w -Tube Exam Exam Exas Indicaticen Ind  %/ Ind Per Exam Reason Tech Reel Location Dog coils Volt Ext Number ISI 540-MIZ18 008 015+ 30.6 15 50 1.47 LTE 12860 CONFIR 8X1-ABS 062 015+ 30.8 357 1 0.48 013 15887 4 29 ISI 540-MIZ18 008 015+ 19.4 8 26 0.84 LTE 12861 ISI 540-MIZ18 008 015+ 27.1 11 36 1.97 LTE 12861 ISI 540-MIZ18 008 015+ 37.6 8 26 0.59 LTE 12861 4 34 ISI 540-MIZ18 008 015+ 23.6 9 30 1.02 LTE 12994 4 38 8X1ACC 540-MIZ18 008 012+ 11.1 11 36 0.84 LTE 13129 5 3 ISI 540-MIZ18 014 014+ 24.1 6 20 0.89 LTE 12862 ISI- 540-MIZ18 014 015+ 44.2 10 33 1.49 LTE 12862 ISI 540-MIZ18 014 015+ 44.8 10 33 2.67 LTE 12862 5 5 ISI 540-MIZ18 014 012+ 27.2 83 50 0.53 LTE 12961 CONFIR 8X1-ABS 06* 012+ 27.1 0 NDD 0.00 010 15884 ISI 540-MIZ18 0'.' 015+ 34.4 7 23 1.29 LTE 12961  :

5 38 ISI 540-MIZ18 008 UTS+ 4.1 7 23 1.21 LTE 12863 6 43 ISI 540-MIZ18 008 015+ 42.6 9 30 0.67 LTE 12.64 ISI 540-MIZ18 008 UTS+ 3.5 11 36 2.88 LTE 12864 ISI 540-MIZ18 008 UTS+ 6.3 7 23 2.33 LTE 12864 6 47 ISI 540-MIZ18 008 015+ 19.9 6 20 1.49 LTE 12865 ISI 540-MIZ18 008 015+ 23.0 7 23 1.34 LTE 12865 ISI 540-MIZ18 008 015+ 24.2 7 23 1.04 LTE 12865

-ISI 540-MIZ18 008 015+ 40.1 8 26 0.67 LTE 12865 l

l 6 48 ISI 540-MIZ18 008 UTS+ 0.4 10 33 1.46 LTE 12866 7 4 S/N-7R 540-MIZ18 014 015+-32.4 7 23 1.02 LTE 13253 S/N-7R 540-MIZ18 014 015+ 33.0 7 23 0.79 LTE 13253 S/N-7R 540-MIZ18 014 UTS+ 'O.8 8 26 0.70 LTE 13253 L 8 -2 ISI 540-MIZ18 014 012+ 16.2 9 30 1.15 LTE 12667 ISI 540-MIZ18 014 012+ 19.0 7 23 0.99- LTE 12867 ISI 540-MIZ18 014 012+ 25.3 8 27 2.03 LTE 12867

-Continues Next Page =>

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ATTACHMENT 1 REVISION O PAGE __73 THREE MILE ISLAND UNIT 1 APPENDIX g COMPONENT SG A

• OUTAGE t 8U1 INDICATIONS GE 20 % THROUGH WALL INCLUDES 8X1-ABS FOR INDICATIONS GE 40 %

Rsw Tube Exam Exam Exam Indication Ind  % / 'Ind Per Exam Reason Tech Reel Location Dag coils Volt Ext Number ISI 540-MIZ18 014 012+ 29.3 10 33 1.45 LTE 12867 ISI 540-MIZ18 014 012+ 33.5 9 30 1.81 LTE 12867 8 43 ISI 540-MIZ18 007 015+ 23.8 6 20 1.30 LTE 12962 ISI 540-MIZ18 007 015+ 24.3 10 33 0.72 LTE 12962 ISI 540-MIZ18 007 015+ 32.1 11 36 0.75 LTE 12962 ISI 540-MIZ18 007 015+ 33.1 9 30 0.90 LTE 12962 9 6 ISI 540-MIZ18 014 015+ 21.7 11 36 0.66 LTE 12996 11 4 ISI 540-MIZ18 014 015+ 21.2 9 30 1.10 LTE 12868 13 1 ISI 540-MIZ18 013 011+ 35.2 7 23 0.53 LTE 12869 ISI 540-MIZ18 013 011+ 35.7 11 36 1.15 LTE 12869 ISI 540-MIZ18 013 013+ 14.1 8 26 0.69 LTE 12869 ISI 540-MIZ18 013 013+ 21.0 7 23 0.66 LTE 12869 ISI 540-MIZ18 013 013+ 22.3 11 36 1.89 LTE 12869 ISI 540-MIZ18 013 013+ 23.3 11 36 1.31 LTE 12869 ,

ISI 540-MIZ18 013 013+ 30.4 8 26 0.76 LTE 12869 15 77 ISI 540-MIZ18 007 012+ 18.5 10 33 0.83 LTE 12963 ISI 540-MIZ18 007 012+ 27.5 11 36 0.78 LTE 12963 ISI 540-MIZ18 007 012+ 30.5 9 30 0.80 LTE 12963 16 2- ISI 540-MIZ18 013 015+ 42.3 6 20 0.99 LTE 12870 17 82 8X1ACC 540-MIZ18 007 014+ 32.6 7 23 0.84 LTE 13130 SX1ACC 540-MIZ18 00' 015+ 5.6 6 20 0.92 LTE 13130 c 18 1 ISI 540-MIZ18 013 004+ 5.1 11 33 1.17 LTE 12964 l

ISI 540-MIZ18 013 004+ 11.9 7 23 1.00 LTE ~12964 i

18 3 ISI 540-MIZ18 013 015+ 23.7 6 30 0.50 LTE 12965 ISI 540-MIZ18 013 015+ 25.1 11 36 1.04 LTE 12965 18 84 ISI '540-MIZ18 007 015+ 32.6 10 33 1.11 LTE 12871 ISI 540-MIZ18 007 015+ 33.0 6 20 1.70 LTE 12871 ISI 540-MIZ18 007 015+ 33.8 8 26 0.70' LTE 12871 ISI 540-MIZ18 007 015+ 34.4 7 23 1.43 LTE 12871 Continues Next Page =>

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. t  ;: 3 ATTACHMENT 1 REVISION O PAGE ~14 THREE MILE ISLANDtUNIT 1 APPENDIX H COMPONENT SG A OUTAGE : 801 INDICATIONS GE 20 % THROUGH WALL INCLUDES BX1-ABS FOR INDICATIONS GE 40 5 .

Row Tube Exam Exam Exam Indication Ind  %/ Ind Per Exam Reason Tech Real Location Dag Coils Volt Ext Number ISI 540-MIZ18 007 015+ 35.6 7 23 0.78 LTE 12871 ISI 540-MIZ18 007 015+ 38.1 9 30 1.06 LTE 12871 ISI 540-MIZ18 007 015+ 40.8 9 30 1.10 LTE 12871 20 1 ISI 540-MIZ18 013 005+ 21.5 7 23 0.99 LTE 12967 ISI 540-MIZ18 013 005+ 31.9 11 36 0.92 LTE 12967 20 56 ISI 540-MIZ18 007 015+ 33.5 8 26 0.97 LTE 12872 20 85 ISI 540-MIZ18 007 010+ 14.5 6 20 0.96 LTE 12873 ISI 540-MIZ18 007 010+ 17.4 9 30 1.33 LTE 12873 ISI 540-MIZ18 007 010+ 18.3 11 36 1.31 LTE 12873 ISI 540-MIZ18 007 010+ 20.2 9 30 1.01 LTE 12873 ISI 540-MIZ18 007 010+ 31.7 7 23 1.00 LTE 12873 ISI 540-MIZ18 007 014+ 31.4 11 36 0.72 LTE 12873 ISI 540-MIZ18 007 015+ 10.7 7 23 0.65 LTE 12873 22 35 ISI 540-MIZ18 013 015+ 34.0 10 33 1.85 LTE 12968 ISI 540-MIZ18 013 UTS+ 3.6 8 27 0.84 LTE 12968 23 3 ISI 540-MIZ18 013 015+ 31.3 6 20 1.00 LTE 12969 24 2 ISI 540-MIZ18 013 015+ 37.6 8 26 1.06 LTE 12970 24 19 S/N 540-MIZ18 013 015+ 45.9 11 36 0.78 LTE 13152 25 2 S/N 540-MIZ18 013 013+ 2.5 10 33 C.88 LTE 13153 25 3 ISI 540-MIZ18 013 014+ 12.4 9 30 1.06 LTE 12999 25 21 ISI 540-MIZ18 013 015+ 38.0 9 30 0.93 LTE 12874 26 '96 S/N-7R 540-MIZ18 007 015+ 19.4 6 20 0.90 LTE 13244 27 78 ISI 540-MIZ18 007 015+ 29.9 7 23 0.99 LTE 12971 27 96 ISI 540-MIZ18 007 LTE+ 21.7 88 37 2.40 LTE 12875 ISI 540-MIZ18 007 015+ 37.5 9 30 0.95 LTE 12875 28 78 ISI 540-MIZ18 017 015+ 28.3 9 32 0.94 LTE 12876 Continues Next Page =>

I.

" " - - - - - - - _______m_ _ , _ _ _ _ _ _ __ _ _ _ _ _ _

• ' M ATTACHMENT 1 REVISION O PAGE ~15 THREE MILE ISLAND: UNIT 1 APPENDIX 32 COMPONENT : SG A OUTAGE : 801 INDICATIONS GE 20 % THROUGH WALL INCLUDES 8X1-ABS FOR INDICATIONS GE 40 %

Row Tube Exam Exam Exam Indication Ind  %/ Ind Per Exam Reason Tech Real Location Dog coils Volt Ext Number 29 58 ISI 540-MIZ18 007 015+ 29.8 7 23 0.74 LTE 12972 ISI 540-MIZ18 007 015+ 33.5 8 26 0.83 LTE 12972 30 23 ISI 540-MIZ18 013 013+ 7.7 6 20 1.01 LTE 12877 ISI 540-MIZ18 013 015+ 13.1 11 36 0.79 LTE 12877 31 1 ISI 540-MIZ18 013 008+ 6.5 11 36 0.94 LTE 12973 31 24 S/N-7R 540-MIZ18 013 012+ 8.0 6 20 0.80 LTE 13251 33 83 ISI 540-MIZ18 007 015+ 45.1 6 20 0.98 LTE 12878 33 97 8X1ACC 540-MIZ18 007 015+ 10.2 8 26 0.85 LTE 13135 BX1ACC 540-MIZ18 007 015+ 36.8 11 36 0.90 LTE 13135 33 102 ISI 540-MIZ18 007 015+ 5.8 9 30 0.89 LTE 13001 34 1 ISI 540-MIZ18 014 006+ 15.5 9 30 1.07 LTE .' 099 34 3 ISI 540-MIZ18 014 UTS+ 2.0 9 30 1.13 LTE 12879 35 54 ISI 540 MIZ18 015 UTS+ 4.4 6 20 0.71 LTE 13100 36 103 8X1ACC 540-MIZ18 007 LTS+ 35.1 65 69 0.73 LTE 13120 CONFIR BX1-ABS 062 LTS+ 35.1 0 NDD 0.00 LTE 15886 36 106 ISI 540-MIZ18 007 015+ 34.3 7 23 1.03 LTE 12974 37 27 8X1ACC 540-MIZ18 015 015+ 28.3 8 26 0.93 LTE 13126 37 109 ISI 540-MIZ18 007 015+ 38.9 11 36 0.80 LTE 12975 38 29- ISI 540-MIZ18 015 011+ 25.1 7 23 0.72 LTE 12976 ISI 540-MIZ18 015 012+ 3.7 8 26 1.41 LTE 12976 39 101 ISI 540-MIZ18 007 015+ 34.6 9 30 1.02 LTE 12881 39 110 ISI 540-MIZ18 007 015+ 39.6 11 36 0.89 LTE 12882 Continues Next Page =>

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• ' N ATTACHMENT 1 REVISION O PAGE _76 THREE MILE ISLANDtUNIT 1 APPENDIX. g .

COKPONENT SG A l OUTAGE : 8U1 l INDICATIONS GE 20 % THROUGM WALL INCLUDES 8X1-ABS FOR INDICATIONS GE 40 %

R1w Tube Exam Exam Exam Indication Ind  %/ Ind Per Exam Reason Tech Reel Location Dag Coils Volt Ext Number 42 114 ISI 540-MIZ18 007 015+ 32.2 6 20 0.77 LTE 13006 ISI 540-MIZ18 007 015+ 43.3 6 20 0.79 LTE 13006 46 88 ISI 540-MIZ18 006 015+ 30.4 7 25 1.16 LTE 13007 48 83 ISI 540-MIZ18 006 UTS+ 6.1 7 23 1.09 LTE 13101 48 118 ISI 540-MIZ18 006 014+ 29.5 9 30 0.94 LTE 12886 49 23 ISI 540-MIZ18 015 015+ 42.6 10 33 0.77 LTE 13009 49 73 ISI 540-MIZ18 006 UTS+ 5.0 9 30 1.69 LTE 12887 49 82 ISI 540-MIZ18 006 015+ 39.8 7 23 0.65 LTE 12888 49 85 ISI 540-MIZ18 006 015+ 36.3 6 20 1.52 LTE 13010-00 1 ISI 540-MIZ18 024 014+ 8.7 7 23 1.30 LTE 13011 ISI 540-MIZ18 014 014+ 10.1 8 26 1.42 LTE 13011 ISI 540-MIZ18 014 014+ 10.4 8 26 1.10 LTE 13011 00 2 S/N 540-MIZ18 014 015+ 29.0 11 36 0.79 LTE 13157 50 102 ISI 540-MI"18 006 015+ 16.6 9 30 1.34 LTE 12889 51 2 ISI 540-K!Z18 015 015+ 2.9 11 36 0.78 LTE 12977 ISI 540-MIZ18 015 015+ 3.1 6 20 0.86 LTE 12977 ISI 540-MIZ18 015 015+ 20.1 10 33 0.93 LTE 12977 51 92 ISI 540-MIZ18 006 013+ 27.4 7 23 0.55 LTE 13012 52- '34 ISI 540-MIZ18 015 014+ 31.4 10 33 0.93 LTE 13102 55 124 ISI 540-MIZ18 006 015+ 14.2 7 23 -1.77 LTE 13017

-56 1 8X1ACC 540-MIZ18 015 008+ 36.4 6 20 0.70 LTE 13127 56- 93 ISI 540-MIZ18 006 015+ 39.4 11 36 0.70 LTE 13018 Continues Next Page =>

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ATTACHMENT 1 REVISION O' PAGE _ 77 THREE MILE ISLAND UNIT 1 APPENDIX Y CCMPONENT SG A OUTAGE : 8U1 INDICATIONS GE 20 % THROUGH WALL INCLUDES 8X1-ABS FOR INDICATIONS GE 40 %

. Row Tube Exam Exam Exam Indication Ind  %/ Ind Per Exam Reason Tech Reel Location Dog Coils Volt Ext Number 57 63 ISI 540-MIZ18 015 015+ 36.9 7 23 2.03 LTE 12890 57 65 ISI 540-MIZ18 006 015+ 37.5 8 26 1.15 LTE 12891 1 ISI 540-MIZ18 006 015+ 40.5 8 26 0.70 LTE 12891 58- 25 8X1ACC 540-MIZ18 015 015+ 42.1 9 30 0.65 LTE 13119 38 94 ISI 540-MIZ18 005 015+ 44.0 9 30 0.80 LTE 13020 58 105 ISI 540-MIZ18 005 UTS+ 4.0 10 36 0.80 LTE 13021 58 120 ISI 540-MIZ18 005 015+ 39.7 7 23 0.63 LTE 13023 60 65 ISI 540-MIZ18 015 015+ 37.3 9 30 1.14 LTE 13025 i

-60 125 ISI 540-MIZ18 005 015+ 25.3 6 20 1.19 LTE 12892

'60 126 'ISI 540-MIZ18 005 014+ 27.8 10 33 0.65 LTE 13027 160 128. ISI. 540-MIZ18 005 015+ 39.9 7 23 0.85 LTE 13028 63- 96 ISI 540-MIZ18 005 015+ 38.9 9 30 0.99 LTE 12978 L

63' 126 ISI 540-MIZ18 005 015+ 22.8 10 33 0.95 LTE 13103 64 66 8X1ACC 540-MIZ18 015 015+ 40.0 8 26 0.91 LTE 13141 64' 129' ISI 540-MIZ18 004 015+ 46.0 11 36 1.48 LTE 12893 66 1 ISI 540-MIZ18 037 004+ 27.7 9 30 2.60 LTE 12895 66 127 ISI 540-MIZ18 004 015+ 44.9 7 25 1.18 LTE 12896 67 93 ISI 540-MIZ18 004 015+ 35.5 9 32 0.62 LTE 12979 ISI 540-MIZ18 004 015+ 36.1 6 21 0.90 LTE. 12979 67 130 ISI 540-MIZ18 004 LTE+ 11.2 15 53 13.99 LTE 13030 L CONFIR 8X1-ABS 062 LTE+ 11.2 0 NDD 0.00 LTE 15885 L

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PAGE 74 THREE MILE ISLAND: UNIT 1 APPENDIX g COMPONENT : SG A OUTAGE : 8U1 INDICATIONS GE 20 % THROUGH WALL INCLUDES 8X1-ABS FOR INDICATIONS GE 40 %

Row Tube Exam Exam Exam Indication Ind  %/ Ind Per Exam Reason Tech Reel Location Dog coils Volt Ext Number 70 88 ISI 540-MIZ18 004 015+ 39.9 6 21 0.66 LTE 13031 72 21 ISI 540-MIZ18 015 015+ 35.3 10 33 0.98 LTE 13032 72 86 ISI 540-MIZ18 004 UTS+ 3.8 11 36 1.19 LTE 12897 73 44 LANEWE 510-MIZ18 032 004+ 0.5 86 52 1.48 LTE 14210 CONFIR 8X1-ABS 062 004& 0.5 90 1 0.43 002 15876 74 28 ISI 540-MIZ18 015 UTS+ 5.7 6 20 1.51 LTE 12898 74 30 ISI 540-MIZ18 015 UTS+ 5.8 7 23 1.20 LTE 12899 74 83 ISI 540-MIZ18 004 015+ 35.2 6 21 1.07 LTE 13036 75 26 S/N-7R 540-MIZ18 015 015+ 33.3 8 26 0.80 LTE 13242 75 81 ISI 540-MIZ18 004 015+ 35.4 7 25 1.36 LTE 12980 75 123 ISI 540-MIZ18 004 015+ 20.3 7 25 0.78 LTE 12902 ISI 540-MIZ18 004 015+ 20.3 7 25 0.78 LTE 12902 ISI 540-MIZ18 004 015+ 24.2 6 21 1.80 LTE 12902 77 126 ISI 540-MIZ18 017 015+ 18.5 8 28 1.01 LTE 12903 79 15 LANEWE 510-MIZ18 055 004+ 36.8 6 20 2.35 LTE 14465 79 130 ISI 540-MIZ18 017 UTS+ 5.2 6 20 0.72 LTE 12905 81 92 ISI 540-MIZ18 017 015+ 42.3 9 32 1.05 LTE 12906 ISI 540-MIZ18 017 UTS+ 0.6 8 26 0.75 LTE 12906 82 32 ISI 540-MIZ18 015 UTS+ 6.5 7 23 1.70 LTE 12907 82 128 ISI 540-MIZ18 017 015+ 7.9 7 21 0.96 LTE 13042 83 17 ISI 540-MIZ18 016 015+ 32.3 7 23 0.99 LTE 12908 ISI 540-MIZ18 016 015+ 35.3 10 33 1.14 LTE 12908 Continues Next Page =>

' ~~ r s ATTACHMENT 1 REVISION O PAGE 79 THREE MILE ISLAND UNIT 1 APPENDIX g ~

COMPONENT t SG A OUTAGE t 8U1 INDICATIONS GE 20 % THROUGH WALL INCLUDES 8X1-ABS FOR INDICATIONS GE 40 %

Row Tube Exam Exam Exam Indication Ind  %/ 'Ind Per Exam Reason Tech Real Location Dag coils Volt Ext Number 87 1 ISI 540-MIZ18 016 012+ 7.0 9 30 2.93 LTE 12910

ISI 540-MIZ18 016 012+ 7.3 8 26 2.83 LTE 12910 88 124 ISI 540-MIZ18 017 015+ 3.5 7 25 0.90 LTE 13045 f 90 80 ISI 540-MIZ18 017 015+ 32.3 6 21 1.06 LTE 12985 90 120 BX1ACC 540-MIZ18 011 UTS+ 2.6 7 23 1.00 LTE 13144 90 128 ISI 540-MIZ18 037 014+ 15.2 7 23 1.12 LTE 12911 ISI 540-MIZ18 011 014+ 15.3 6 20 1.04 LTS 12911 ISI 540-MIZ18 037 015 0.3 8 26 2.09 LTE 12911 ISI 540-MIZ18 011 015 0.2 6 10 1.90 LTS 12911 ISI 540-MIZ18 011 015+ 2.0 8 26 0.96 LTS 12911 ISI 540-MIZ18 037 015+ 2.0 11 36 0.95 LTE 12911 91 90 ISI 540-MIZ18 011 015+ 38.0 6 20 1.06 LTE 13047 93 27 ISI 540-MIZ18 016 015+ 38.0 8 26 0.96 LTE 12986 93 90 ISI 540-MIZ18 011 UTS+ 0.7 11 36 0.90 LTE 13049 93 121 ISI 540-MIZ18 011 015+ 34.9 6 20 0.81 LTE 13106 93 123 ISI 540-MIZ18 011 015+ 7.0 7 23 0.86 LTE 13107 94 113 ISI 540-MIZ18 011 015+ 33.6 10 33 1.09 LTE 13108 94 117 ISI 540-MIZ18 011 015+ 44.2 8 26 1.44 LTE 12987 95 111 ISI 540-MIZ18 011 015+ 40.4 7 23 1.23 LTE 12913 95 123 ISI 540-MIZ18 011 UTS+ 1.8 9 30 1.31 LTE 12914 95 124 ISI 540-MIZ18 011 UTS+ 2.1 11 36 0.82 LTE 13109 ISI 540-MIZ18 011 UTS+ 5.9 9 30 1.00 LTE 13109 95 11 6 ISI 540-MIZ18 011 UTS+ 6.2 11 36 1.00 LTE 13110 continues Next Page =>

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~l ATTACHMENT 1 i REVISION 0 1 PAGE 90 THREE MILE ISLANDtUNIT 1 APPENDIX 17 COMPONENT SG A OUTAGE : 801 INDICATIONS GE 20 % THROUGH WALL INCLUDES 8X1-ABS FOR INDICATIONS GE 40 % ,

Rtw Tube Exam Exam Exam Indication Ind  %/ Ind Per Exam Reason Tech Real Location Dog coils Volt Ext Number ISI 540-MIZ18 011 UTS+ 6.8 8 26 1.90 LTE 13110 95 -127 S/N 540-MIZ18 011 013+ 13.2 7 23 0.63 LTE 13191 96 32 ISI 540-MIZ18 037 015+ 37.6 7 23 1.68 LTE 12915 ISI 540-MIZ18 037 015+ 43.2 10 33 1.08 LTE 12915 96 114 ISI 540-MIZ18 011 015+ 5.7 6 20 0.90 LTE 13050 99 1 ISI 540-MIZ18'037 004+ 23.8 7 23 1.27 LTE 12917 ISI 540-MIZ18 015 008+ 5.0 9 30 0.93 LTE 12917 ISI 540-MIZ18 037 008+ 5.1 10 33 0.92 LTE 12917 99 17 ISI 540-MIZ18 015 015+ 33.0 9 30 1.21 LTE 12918 100 90 S/N 540-MIZ18 011 UTS+ 2.8 10 33 1.00 LTE 13181 100 122 ISI 540-MIZ18 011 UTS+ 4.8 7 23 1.42 LTE 12919 101 R16 ISI 540-MIZ18 015 015+ 30.9 6 20 1.14 LTE 12920 101' 51 ISI 540-MIZ18.037 UTS+ 1.3 11 36 1.11 LTE 12921 ISI 540-MIZ18 037 UTS+ 4.0 11 36 1.06 LTE 12921 ISI 540-MIZ18 037 UTS+ 4.9 6 20 1.16 LTr 12921 101 61 ISI 540-MIZ18 037 015+ 29.3 6 20 2.23 LTE 12923 103 121 ISI 540-MIZ18.011 003+ 16.3 93 27 0.66 LTE 12924 '

ISI 540-MIZ18 011 014+ 12.2 10 33 0.96 LTE 12924 ISI 540-MIZ18 011 014+ 15.6 7 23 0.98 LTE 12924 ISI 540-MIZ18 011 015+ 43.8 9- 30 2.16 LTE 12924 ISI 540-MIZ18 011 015+ 44.1 6 20 1.10 LTE 12924 104 75 -ISI 540-MIZ18 011 015+ 29.4 8 26 0.67 LTE 12988 ISI 540-MIZ18 011 015+ 39.5 8 26 1.09 LTE 12988

! 104 121 ISI 540-MIZ18 011 014+ 3.0 6 20 1.50 LTE 12925 l ISI 540-MIZ18 011 015+ 45.6 14 46 1.12- LTE 12925 l_ CONFIR 8X1-ABS 062 015+ 45.6 2 1 0.41 014 15889 Continues Next Page =>

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ATTACHMENT 1 REVISION O 4 PAGE 9J THREE MILE ISLAND UNIT 1 APPENDIX g l COMPONENT : SG A OUTAGE 801 INDICATIONS GE 20-4 THROUGH WALL INCLUDES 8X1-ABS FOR INDICATIONS GE 40 %

Rcw Tube Exam Exam Exam Indication Ind  %/ Ind Per Exam Reason Tech Reel Location Dog Coils Volt Ext Number 105 94 ISI 540-MIZ18 037 014+ 0.0 90 28 1.09 LTE 12926 ISI 540-MIZ18 011 014+ 0.0 90 23 1.14 LTE 12926 106 2 ISI 540-MIZ18 015 015+ 10.3 7 23 0.92 LTE 12927 107 2 ISI 540-MIZ18 015 015+ 33.4 8 26 1.27 LTE 12929 ISI 540-MIZ18 015 015+ 37.4 7 23 1.40 LTE 12929 107 116 ISI 540-MIZ18 010 015+ 43.2 6 20 0.66 LTE 13056 107 120 ISI 540-MIZ18 011 UTS+ 3.6 6 20 1.18 LTE 12931 ISI 540-MIZ18 011 UTS+ 5.0 9 30 1.10 LTE 12931 110 52 ISI 540-MIZ18 037 015+ 40.0 9 30 1.13 LTE 12933 ISI 540-MIZ18 037 UTS+ 1.1 6 20 1.25 LTE 12933 ISI 540-MIZ18 037 UTS+ 2.7 7 23 1.13 LTE 12933 111 51 ISI 540-MIZ18 037 015+ 38.7 8 27 1.61 LTE 13061 112 1 8X1ACC 540-MIZ18 015 011+ 36.0 6 20 0.85 LTE 13142 112 116 ISI 540-MIZ18 010 008+ 31.3 6 20 0.62 LTE 12935 ISI 540-MIZ18 010 012+ 22.1 7 23 1.39 LTE 12935 ISI 540-MIZ18 010 013+ 5.6 7 23 0.87 LTE 12935 113 104. ISI 540-MIZ18 010 015+ 21.9 6 20 0.87 LTE 12989 114 93 ISI 540-MIZ18 010 015+ 40.9 6 20 1.33 LTE 12936 115 26 ISI 540-MIZ18 015 015+ 25.6 11 36 1.12 LTE 12937 115 109 ISI '540-MIZ18 010 UTS+ 5.1 7 23. 2.84 LTE 12938 116' 2 8X1ACC 540-MIZ18 016 006+ 3.3 10 33 2.01 LTE 13125 l 116 109 ISI 540-MIZ18 010 015+ 33.2 6 20 1.01 LTE 12939 ISI 540-MIZ18 010 015+ 36.2 7 23 1.12 LTE 12939 118 67 ISI 540-MIZ18 010 015+ 38.4 9 30 1.09 LTE 12991 Continues Next Page =>

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REVISION O l PAGE 92.

THREE MILE ISLAND UNIT 1 APPENDIX 3 COMPONENT : SG A OUTAGE : 8U1 i INDICATIONS GE 20 % THROUGH WALL l INCLUDES 8X1-ABS FOR INDICATIONS GE 40 %

Rw Tube Exam Exam Exam Indication Ind  %/ Ind Per Exam Reason Tech Real Location Dog coils Volt Ext Number 119 .77 ISI 540-MIZ18 010 015+ 29.1 6 20 1.72 LTE 12940 120 67 ISI 540-MIZ18 010 015+ 36.3 7 23 1.23 LTE 12942 122 30 ISI 540-MIZ18 015 UTS+ 0.8 8 26 0.86 LTE 12945-123 85 ISI 540-MIZ18 010 015+ 45.1 6 20 1.02 LTE 13094 124 1 ISI 540-MIZ18 016 012+ 23.6 7 23 1.57 LTE 12946 124 99 8X1ACC 540-MIZ18 010 013+ 8.4 7 23 0.62 LTE 13134 124 100 ISI 540-MIZ18 010 013+ 8.8 7 23 0.63 LTE 13112 125 97 ISI- 540-MIZ18 010 015+ 41.0 9 30 0.96 LTE 13113 125 98 ISI 540-MIZ18 010 015+ 29.7 9 30 0.98 LTE 13079 126 94 ISI 540-MIZ18 010 015+ 35.8 10 33 2.14 LTE 13080 127 94 ISI 540-MIZ18 009 UTS+ 3.6 11 36 1.54 LTE 13082 130 41 ISI 540-MIZ18 015 -015+ 27.8 7 23- 1.84 LTE 12948 130 60 ISI 540-MIZ18 009 015+ 33.2 11 36 0.81 LTE 13114 130 73 ISI 540-MIZ18.009 015+ 41.8 11 36 0.75 LTE 13083 131 1 ISI 540-MIZ18 016 013+ 24.9 10 33 1.09 LTE 13115 131 82 ISI 540-MIZ18 009 015+ 0.0--10 33 1.02 LTE 13077 ISI 540-MIZ18 009 015+-15.6 11 36 1.53 LTE 13077 ISI 540-MIZ18 009 015+ 38.0 11 36 1.46 LTE 13077 ISI 540-MIZ18 009 015+ 43.1 11- 36 1.25 LTE 13077 132 39 8X1ACC 540-MIZ19 015- 015+ 28.9 6 20 0.97. LTE 13118 8X1ACC 540-MIZ18 015 015+ 30.7 7- 23 1.03- LTE 13118 134 1 ISI 540-MIZ18 0.'.6 004+ 2.3 9 30 1.13 LTE 12950 Continues -axt Page =>

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ATTACHMENT 1 REVISION O PAGE 93 THREE MILE ISLAND: UNIT 1 APPENDIX X COMPONENT : SG A OUTAGE : 801 INDICATIONS GE 20 % THROUGH WALL INCLUDES 8X1-ABS FOR INDICATIONS GE 40 %

TGV Tube Exam Exam Exam Indication Ind  %/ Ind Per Exam Reason Tech Reel Location Dog coils Volt Ext Number ISI 540-MIZ18 016 004+ 3.2 6 20 0.91 LTE 12950 134 65 ISI -540-MIZ18 009 015+ 37.5 9 30 1.55 LTE 13097 135 2 ISI 540-MIZ18 016 013+ 34.0 6 20 0.74 LTE 12951 ISI 540-MIZ18 016 014 0.2 10 33 0.88 LTE 12951 ISI 540-MIZ18 016 015+ 11.6 9 30 0.80 LTE 12951 ISI 540-MIZ18 016. 015+ 35.8 9 30 1.10 LTE 12951 135 5 ISI 540-MIZ18 016 014+ 27.5 6 20 1.19 LTE 12952 136 5 ISI 540-MIZ18 016 015+ 39.1 10 33 1.37 LTE 12954 136 6 ISI 540-MIZ18 016 015+ 36.2 9 30 1.60 LTE 12955 136 69. ISI 540-MIZ18 009 015+ 8.9 6 20 0.69 LTE 13084 ISI 540-MIZ18 009 015+ 11.6 8 27 1.09 LTE 13084 ISI 540-MIZ18 009 015+ 13.1 7 23 0.99 LTE 13084 ISI 540-MIZ18 009 015+ 33.4 10- -33 1.11 LTE 13084 ISI- 540-MIZ18 009 015+ 37.6 11 36 -2.08 LTE 13084 137 53 .8X1ACC 540-MIZ18 009 015+ 18.7 11 36 0.79 LTE 13136 138 65 ISI 540-MIZ18 009 UTS+ 5.9 11 36 1.73 LTE 13085 139 67 ISI 540-MIZ18 009 015+ 45.8 11 36 1.44 LTE 13117 139 .71 - ISI 540-MIZ18 009 013+ 25.9 11 36 1.77 LTE 13086 ISI- 540-MIZ18 009 015+-41.4 9 30 1.03 LTE 13086

-140 67- ISI 540-MIZ18 009 UTS+ 3.4 10 33 1.09 LTE 13087 140 69 8X1ACC 540-MIZ18 009 013+ 13.9 7 23 1.77 LTE 13124 141 60 ISI 540-MIZ18 009 015+ 44.1 9 30 0.87 LTE 13088 ISI 540-MIZ18-009 015+ 45.8 8 27 1.03 LTE 13088 143 55 ISI 540-MIZ18 009 UTS+ 3.2 10 33 0.98 LTE- 13098 143 57 8X1ACC 540-MIZ18 009 015+ 43.3 10 33 1.10 LTE -13132

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a ATTACHMENT 1 REVISION O PAGE 94 THREE MILE ISLAND UNIT 1 APPENDIX X COMPONENT : SG A OUTAGE : 8U1 INDICATIONS GE 20 % THROUGH WALL INCLUDES 8X1-ABS FOR INDICATIONS GE 40 %

Rsw Tube Exam Exam Exam Indication Ind  %/ Ind Per Exam Reason Tech Reel Location Dog coils Volt Ext Number 144 2 S/N 540-MIZ18 016 012+ 31.3 11 36 0.83 LTE 13173 145- 50 ISI 540-MIZ18 009 UTS+ 4<2 10 33 3.47 LTE 13089 146 1 ISI 540-MIZ18 016 004+ 35.6 11 36 1.47 LTE 12956 146 3 ISI 540-MIZ18 016 012+ 26.4 7 23 0.74 LTE 13072 146 43 ISI 540-MIZ18 009 015+ 33.9 11 30 0.85 LTE 13090 ISI 540-MIZ18 009 015+ 35.2 11 36 0.83 LTE 13090 ISI 540-MIZ18-009 015+ 36.2 9 30 0.85 LTE 13090 ISI 540-MIZ18 009 015+ 40.5 6 20 0.83 LTE 13090 146 50 ISI 540-MIZ18 009 003+ 35.8 11 36 1.74 LTE 13091 147 2 ISI 540-MIZ18 016 012+ 10.4 7 23 1.12 LTE 12957 149 30 S/N 540-MIZ18 009 005+ 25.6 7 23 0.72 LTE 13175 S/N '540-MIZ18 009 00S+ 26.5 10 33 0.76 LTE 13175 150 8 ISI 540-MIZ18 015- 015+ 3.5 7 23 0.94 LTE 12992 ISI 540-MIZ18 015 015+ 18.4 7 23 0.92 LTE 12992 Total Tubes : 198 Total Indications : 324 i

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ATTACHMENT 1 REVISION O PAGE S5 THREE MILE ISLAND UNIT 1 APPENDIX E COMPONENT SG B OUTAGE 8R INDICATIONS GE 20 % THROUGH WALL INCLUDES 8X1-ABS FOR INDICATIONS GE 40 %

Row Tube Exam Exam Exam Indication Ind  %/ Ind Per Exam Reason Tech Reel Location Dog coils Volt Ext Number 1 11 ISI 540-MIZ18 002 UTS+ 2.9 7 23 1.19 LTE 11420 6 4 ISI 540-MIZ18 005 UTS+ 5.3 7 23 2.51 LTE 11443 7 42 ISI 540-MIZ18 002 012+ 11.9 7 23 0.87 LTE 11421 ISI 540-MIZ18 002 013+ 11.2 10 33 0.98 LTE 11421 ISI 540-MIZ18 002 014+ 22.9 10 33 0.82 LTE 11421 8 44 S/N 540-MIZ18 002 014+ 16.5 10 33 0.69 LTE 11460 S/N 540-MIZ18 002 014+ 29.4 9 30 0.62 LTE 11460 9 22 ISI 540-MIZ18 005 015+ 45.0 7 23 1.22 LTE 11422 19 44 ISI 540-MIZ18 002 015+ 41.8 8 26 1.78 LTE 11423 24 63 ISI 540-MIZ18 002 013+ 14.0 11 36 0.86 LTE 11424 ISI 540-MIZ18 002 014+ 9.4 11 36 0.64 LTE 11424 26 13 3%-TS 510-MIZ18 008 013+ 15.3 6 20 1.65 LTE 11982 CONFIR 540-MIZ18 027 013+ 15.3 6 20 1.48 LTE 12899 30 13 ISI 540-MIZ18 005 015+ 45.2 10 33 2.26 LTE 11425 30 71 ISI 540-MIZ18 002 015+ 32.6 9 30 1.17 LTE 11426 38 72 BX1ACC 540-MIZ18 002 012+ 7.3 11 36 0.80 LTE 11459 8X1ACC 540-MIZ18 002 012+ 35.7 -11 36 0.78 LTE 11459 42' 74 S/N- 540-MIZ18 002 009+ 4.5 7 23 0.56 LTE 11465 44 75 8X1ACC 540-MIZ18 002 013+ 17.0 8 26 0.61 LTE 11449 BX1ACC 540-MIZ18-002 013+ 29.2 7 23 0.92 LTE 11449 8X1ACC 540-MIZ18 002 014+ 9.7 8 26- 0.88 LTE 11449 8X1ACC 540-MIZ18 002 015+ 1.3 10 33 0.62 LTE 11449 8X1ACC 540-MIZ18 002 015+ 34.3 6 20 0.99 LTE 11449 L 90 39 CONFIR *s40-MIZ18 027 -008+ 34.0 8 26 1.13 LTE 12900 3%-TS 510-MIZ18 008 009+ 34.9 8 26 1.41 LTE 12009 Cohtinues Next Page =>

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PAGE J G l TH~ TEE MILE ISLAND UNIT 1 APPENDIX X l COKPONENT : SG B l OUTAGE : 8R  !

INDICATIONS GE 20 % THROUGH WALL l INCLUDES 8X1-ABS FOR INDICATIONS GE 40 % ,

Row Tube Exam Exam Exam Indication Ind  %/ Ind Per Exam i Reason Tech Real Location Dog Coils Volt Ext Number 60 83 ISI 540-MIZ18 027 015+ 39.3 11 36 1.09 LTE 11427 64 83 ISI 540-MIZ18 027 015+ 31.6 10 33 1.22 LTE 11428 73 45 CONFIR 540-MIZ18 027 002+ 9.8 7 23 1.22 LTE 12906 LANEWE 510-MIZ18 017 002+ 9.8 6 20 1.27 LTE 12491 73 78 CONFIR 540-MIZ18 027 LTS+ 32.4 8 26 1.87 LTE 12905 3%-TS 510-MIZ18 013 LTS+ 32.4 9 30 1.53 LTE 12146 74 56 CONFIR 540-MIZ18 027 014+ 2.1 10 33 1.48 LTE 12904 LANEWE 510-MIZ18 019 014+ 2.1 10 33 1.44 LTE 12566 79 47 S/N-7R 540-MIZ18 004 004+ 24.8 83 31 0.60 LTE 11522 82 14 CONFIR 540-MIZ18 027 006+ 0.6 78 24 1.57 LTE 12901 3%-TS 510-MIZ18 009 906+ 0.7 72 37 1.46 LTE 12304 103 33 CONFIR 540-MIZ18 028 014+ 0.0 9 30 1.62 LTE 12902 3%-TS 510-MIZ18 010 014+ 0.0 11 36 1.47 LTE 12345 104 77 ISI 540-MIZ18 003 UTS+ 3.9 10 33 1.64 LTE 11429 105 8 ISI 540-MIZ18 004 UTS+ 6.6 10 33 1.18 LTE 11430 109 11 .ISI 540-MIZ18 004 015+ 44.1 6 20 0.96 LTE 11431 ISI 540-MIZ18 004 015+ 44.8 10 33 1.17 LTE 11431.

ISI 540-MIZ18 004 015+ 45.7 6 20 1.00 LTE 11431 ISI 540-MIZ18 004 17TS+ . 5.0 11 36 1.00 LTE 11431 109 112 ISI 540-MIZ18 003 004+ 0.0 7 25 1.74 LTE 11432 ISI 540-MIZ18 003 004+ 4.9 10 33 1.23 LTE 11432 117 56 8X1ACC 540-MIZ18.003 012+ 14.2 6 20 1.33 LTE 11456 122 44 ISI 540-MIZ18 004 UTS+ 2.5 6 20 1.62 LTE 11433

.123 1 CONFIR 540-MIZ18 027 UTS+ 6.4' 18 60 3.76 LTE 12903 CONFIR 8X1-ABS 034 UTS+ 6.4 13 2 1.30 015 12907 Continues Next.Page =>

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• -. N.a ATTACHMENT 1 REVISION O PAGE 97 THREE MILE ISLAND UNIT 1 APPENDIX L COMPONENT SG B OUTAGE : 8R INDICATIONS GE 20 % THROUGH WALL INCLUDES 8X1-ABS FOR INDICATIONS GE 40 %

R;w Tube Exam Exam Exam Indication Ind  %/ Ind Per Exam l Reason Tech Reel Location Dog Coils Volt Ext Number 3%-TS- 510-MIZ18 010 UTS+ 6.4 19 63 3.65 LTE 12388 CONFIR 8X1-ABS 034 UTS+ 6.4 13 2 1.30 015 12907 124 36 ISI 540-MIZ18 004 015+ 45.1 10 33 1.17 LTE 11434 131 27 S/N-7R 540-MIZ18 004 011+ 10.4 9 30 0.95 LTE 11527 136 40 ISI 540-MIZ18 004 015+ 40.5 6 20 1.48 LTE 11435 138 52 ISI 540-MIZ18 003 006+ 0.6 65 52 1.67 LTE 11436 CONFIR 8X1-ABS 034 006+ 0.6 60 1 0.31 004 12908 143 43 ISI 540-MIZ18 002 010+ 7.7 7 23 0.76 LTE 11437 144 49 ISI 540-MIZ18 002 006+ 0.0 71 43 1.39 LTE 11438 CONFIR 8X1-ABS 034 006+ 0.0 0 NDD 0.00 004 12909 146 37 ISI 540-MIZ18 002 012+ 7.2 10 33 0.99 LTE 11439 150 25 ISI 540-MIZ18 002 007+ 25.4 7 23 1.02' LTE 11440 ISI 540-MIZ18 002 008+ 37.2 7 23 0.66 LTE 11440 ISI 540-MIZ18 002 014+ 6.1 8 26 v.60 LTE 11440 ISI 540-MIZ18 002 015+ 19.6 9 30 0.76 LTE 11440 Total Tubes : 37 Total Indications : 61

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ATTACHMENT 1 REVISION O PAGE __BB APPENDIX y Appendix V TUBES PLUGGED DURING OUTAGE 8U1

. . t 'T ATIACHMENT 1 REVISION O PAGE %

THREE MILE ISLANDtUNIT 1 APPENDIX L COMPONENT : SG A .

OUTAGE : 8U1 EXAMINATION RESULTS FOR TUBES TO BE PLUGGED Row Tube Exam Exam out- Indication Ind  % Ind Cire Ind Por Reason Tech age Reel Location Dog T.W. Volt Ext Des Ext 77 1 REVIEW 510 8U1 054 UTS+ 0.0 190 0 7.49 DNT LTE CONFIR 540 801 011 UTS+ 0.0 17 100 172.80 009 CONFIR MRP BU1 013 UTS+ 0.0 22 100 120.00 UTS LANE-1 8X1 8U1 001 UTS+ 0.0 20 33.37 8 014 78 28 REVIEW 510 8U1 055 UTS+ 0.0 186 0 6.94 DNT LTE CONFIll 540 8U1 011 UTS+ 0.0 194 0 5.83 DNT LTE LANE 8X1 8U1 003 UTS+ 0.0 8 0.65 1 014 CONFIR MRP BU1 013 UTS+ 0.2 5 41 4.13 UTS Total Tubent 2 I

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.- . i W ATTACHMENT 1 REVISION O PAGE _9 l APPENDIX L GENERAL PU8LIC UTILITIES THREE MILE ISLM G PLANT UNIT #1

$CHEDULE DAY ONE IlE

30 12:30 - 1:00 Introduction Course Objective ,

- Overview

- Schedule of Activities

30 1:00 - 1:30- Miz 18 Bobbin Coil Guidelines (Class Reading Assignment)

15 1:30 - 1:45 Break i

! :30 1:45 - 2:15 Miz-18 Bobbin Coil Guideline Lecture (Instructor Directed)

30 2:15 - 2:45 8X1 Analysis Guideline (Class Reading Assignment)

15 2:45 - 3:00 Break l :30 3:00 - 3:30 8X1 Analysis Lecture (Instructor Directed)

45 3:30 - 4:15 Set-up Equipment l ,

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. . t -y ATTACHMENT 1 REVISION O PAGE_ 90 APPENDIX U Appendix VI OUTLIlm 0F DATA ANALYST INDOCTRINATIOtl 2

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<' l ATTACHMENT 1 REVISION-0 PAGE 97 APPENDIX L SCHEDULE (Cont.)

DAY TWO 4:00 8:00 - 12:00 Practice Tape Lab Session (Class Reviews Tape)

43 12:00 - 12:45 Lunch 4:00 12:45 4:45 Practical Examination (Night Shift)

OAY THREE 4:00 8:00 - 12:00 Practical Examination (Day Shift)

Times shown could be subject to change or modification.

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