Text

Rev 0 to Results of 1988-7R Once-Through Steam Generator Current Exams
	ML20246E523
Person / Time
Site:	Crane
Issue date:	01/25/1989
From:	Jandovitz J, Tira Patterson, Torborg M; GENERAL PUBLIC UTILITIES CORP.
To:	;
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ML20246E521	List: ML20246E517; ML20246E523;
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	935, 935-R, 935-R00, NUDOCS 8907120278
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Nuclear TDR Na

'35 Revisic- * - 0 Budget Technical Data Report Activity No.

125008 Page I

of 54 Project:

Department /Section QA/SPF TMI Unit 1 Inservice Inspection Program Release Date Revision Date Document

Title:

Results of the 1988-7R OTSG Eddy Current Examinations Originator Signature Date Approval (s) Signature Date M. T. Torborg/4Eggg;;il(a

/-25-Ait?

J. S. Jandovitz16 )%Auff

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T. J. Pattersosf-ff gff,1

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Approval for External pistribytion,

Date R. W. Keaten /fbWpA 1-b-97 Does this TDR include recommendation (s)? Cyes 2No if yes, TFWR/TR#

Distribution Abstract:

In June 1988, TMI-1 shut down for Refueling Outage 7R. While the unit was shut down, GPUN performed Eddy Current (ECT) examinations of the tubing in the Once Through Steam Generad tors.

J. D. Abramovici R. O. Barley Summary The initial scope of the examinations included a 35 Tech G. R. Capodanno Spec. sample, all tubes previously identified as degraded tubes, d !

J. J. Colitz and additional groups of tubes which GPUN elected to examine. Asj D. W. Covill a result of the initial " Tech. Spec." examinations additional I. R. Finfrock samples (65) were required in both OTSG-A and OTSG-B. This brougi J. F. Fornicola the total number of tubes examined to 2,197 (145) in OTSG-A and J. S. Jandovitz 1,938 (125) in OTSG-8.

R. W. Keaten Results: Following the ECT exaciinations, titirten (13) tubes in

4. Lih.r OTSG-A and eight (8) tubes in OTSG-B were re.ww! fra service T. J. Patterson by plugging.

The indications identified during this examination M. T. Torborg were characterized and compared to previous examinations. This it. H. Zeise comparison showed the majority of indications continued to be R. J. McGoey inner diameter initiated and occurred in the same locations as 1

l the indications identified during examinations since 1982. Addi-l tionally, tube support plate to tube wear was identified in four ;

I tubes along the open inspection lane.

4

==

Conclusions:==

The examination of the previously identified de-graded tutes did not show statistically significant evidence of an ongoing degradation mechanism.

In addition, a characterization and review of previous data for newly recorded indications show they are small, inner diameter initiated and most were confirmed to have been present since 1984.

The wear indications were deter <

, mined to be typical of wear identified in other OTSGs.

?hl120270090703 G

ADocx osoo 9

(For Additional Space Use Sida 2) l This is a report of work conducted by an ind. ! dual (s) for use by l GPU Nuclear Corporation. Neither GPU Nuclear Corporation nor I the authors of the report warrant that the rept"t !s complcts or accurate. Nothing contained in the report erst

>rporation.

iishes company policy or constitutes a commitment by GPU b iclear

TDR 935 REVISION O PAGE _2_ 0F 54-TABLE OF CONTENTS PAGE NO.

a I.

INTRODUCTION.

3 II.

RESULTS 4

III.

E00Y CURRENT EXAMINATION PROCESS.............

6 IV.

EXAMINATION CATEGORIES AND RESULTS............

15 A.

EXAMINATIONS REQUIRED BY T.S. 4.19..........

15 1.

. Degraded Tubes.................

15 2.

Tech. Spec. Random Samples...........

23 B.

GPUN ELECTIVE EXAMINATIONS..............

26 1.

Tubes with Indications Not Confirmed by 8x1...

26 2.

Lane / Wedge Tubes................

28 l

3.

Tubes with S/N Indications...........

31 4.

Mechanical Cleaning Baseline..........

33 5.

Possible Loose Part.

35 6.

Extra......................

36 V.

DISCUSSION OF RESULTS...................

37 i

VI.

CONCLUSIONS........................

53 VII.

REFERENCES........................

54 Figure 1 12 Figure 2 16 Figure 3 17 Figure 4 38 i

Figure 5 39 Figure 6 40 i

figure 7 41 i

figure 8 42 Figure 9 43 l

Figure 10 44 1

FigJre 11 45 Figure 12 4E I

figure 13 47 i

i Table 1 21 i

Table 2 22 i

)

i Appendix I 00A-4 Analysts Codes....

Appendix II Statistical Evaluation Data i

Appendix III Tubes Plugged During Outage 7R.........

l Appendix IV Tubes with Indications >20% Through Hall....

)

Appendix V Review of Previous Data l

Appendia VI Outline of Data Analyst Indoctrination.....

1846A/0138a qa

TDR 935 REVISION O PAGE 3 0F 54 I,

INTRODUCTION In June 1988 TMI-1 was shut down for refueling outage 7R.

While the unit was shut down, GPUN performed Eddy Current (ECT) examinations of the tubing in the Once Through Steam Generators (OTSGs).

The examinations were performed in accordance with the requirements of TMI-1 Technical Specification 4.19 (Reference 1).

The examinations also satisfied additional GPUN engineering requirements.

The initial scope of the examinations included 1255 tubes in OTSG A and 988 tubes in OTSG B.

This initial scope included a 3% Tech. Spec. sample, all tubes previously identified as degraded tubes and additional groups of tubes which GPUN elected to examine to further monitor the condition of the OTSG.

Based on the results of the Tech. Spec. required examinations, additional samples of 6% (932 tubes) were required to be examined in each OTSG.

These expanded samples and additional tubes selected by GPUN brought the number of tubes examined to 2197 (14%) in STSG A and 1938 (12%) in OTSG B.

1 l

1 1

\\

i 1846A/0138a qa

TDR 935 REVISION O PAGE 4 0F-54

(

.II.

RESULTS o

following the ECT examinations thirteen (13). tubes in OTSG A and eight (8) tubes in OTSG B were removed from service by plugging. Of these tubes, sixteen (16) tubes had indications of.40% through wall or gr9ater' The other five (5) tubes were in the Lane Wedge area, one (1) tube was.plegged due to'a distorted signal at the entrance to the upper' tube sheet while four (4) tubes were plugged.because of wear indications at the 15th tube support plate.

The indications in these Lane Wedge tubes could not be sized using conventional techniques, however, based on previous evaluations of simulated defects, they were determined to exceed GPUN's administrative plugging criteria of 20% through wall for this area.

The indications which were identified during this examination were

-characterized and compared to the 1984, 1986-5M and 1986-6R examination results~

This showed the indications were mostly inner diameter initiated and occurred in the same axial and radial locat190s as those identified during previous examinations.

The examination and statistical evaluation of the tubes identified as 4

" Degraded Tubes" during previous examinations did not reveal any trends of ongoing degradation or propagation of existing indications.

This is i

consistent with the results of the 1984, 1986-5M and 1986-GR examinations.

i i

i 1846A/0133a qa

f TCR 935 REVISION O PAGE _5_ 0F 54 l

A review of the previous data for the four (4) tubes plugged for wear in the Lane Wedge ar'ca showed the wear had been present during the last examination (1986-6R).

The evaluation and characterization of the wear indications showed they were the result of tube to tube support plate interaction.

t 1846A/0138a aa i

I TDR 935 REVISION O PAGE 6 0F 54-III.

EDCY CURRENT EXAMINATION PROCESS a

EDDY CUR, RENT INSTRUMENT The ECT examinations were performed using the same basic methods which were initially developed and qualified by GPUN in~1982 and 1983. GPUN has continued to upgrade and refine these techniques since the initial qualifications (References 2 and 3).

For outage 7R, the most significant change was the use of the Zetec.

MIZ-18 Digital Eddy Current System in place of the Zetec MIZ-12 Analog Eddy Current System.

The MIZ-18 was selected for use in place of the MIZ-12 for several reasons.

These included; 1.

Increased Dynamic Range 2.

Increased Analysis Capabilities 3.

Simplified Set-Up and Calibration Process 4.

Improved Equipment Reliability Prior to using the MIZ-18 system a comparison of the MIZ-12 and MIZ-18 systems was made using insitu data obtained during outage 6R.

This evaluation showed the MIZ-18 was equivalent to or superior to the MIL-12 in all aspects reviewed. Addittoaally the data was determined to be compatible between the two systems thereby permitting direct comparison to previous examinations.

I 1846A/0138a qa

o TDR 935-REVISION 0 p.

PAGE 7 0F 54 PROBES-9 The produc.tlon ECT probes used during the 7R examinations were the same

'as used during. outage 6R.

These included the Zetec A-540-LC/NF/M/HF and A-510-LC/NF/M/HF Standard Differential (Bobbin Coll) and Zetec 8C-5240-555-A0187 8xl Absolute probe.

One new probe, a Motorized Rotating Probe (MRPC) was used on a limited

' basis during this outage.

This probe, a Zetec.510" diameter probe body with a.500" diameter probe motor and a. 125" diameter coil was used to provide' additional diagnostic.information on select indications.

TECHNIOUES The following is a summary of the examination methods used.

The detailed procedurer are contained in TMI-I Surveillance Procedure 1300-4B (Reference'4).

Dual Examinatln Method, for the unexpanded portion of tube o

' Bobbin Coil Absolute Method, for the detection of wear Motorized Rotating Probe, (MRPC) for the characterization of select indications.

1846A/0138a qa

l l-TDR 935 REV!SION O PAGE 8 0F 54 Dual. Examination' Method:

The portion of tubing between the roll l-expansion in'the lower tube sheet and the kinetic expansion in the upper 1

tube sheet is examined using the Dual Examination Method which GPUN developed and qualified in 1982 (Reference 2)

This technique consists of first examining the tubes using the.540" diameter Standard Differential (Bobbin Coll) probe (.540" 5.D.) to screen indications for further evaluations. Tubes with.540" S.D. Indications ara then examined using the axi absolute technique to determine if'the indications are relevant and to determine the circumferential extent.

For confirmed indications, the characterization and disposition of the tubes is based on the following:

Percent Through Wall - Based on phase 'nalysis of the.540" 5.D'. (see Reference 3).

Circumferential Extent - Based on number of 8x1 coils.

Signal Voltage - Based on.540" 5.D.

Axial Location - Based on.540" 5.D.

NOTE: The amplitude, phase angle and axial bestion of the 8xl Absolute are also used to confirm the.540" 5.0. indications.

l 1846A/0138r qa I

J

TDR 935 l

REVISION O L

PAGE 9 0F 54 Wear Examinations:

The examination for the detection of gradual, outer diameter tub'e wear is performed during the.540" 5.0. 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 permits 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 8xl absolute probe to provide additional data.

Motorized Rotating Probe (MRPC):

In addition to the dual examination method the MRPC probe was used to examine the eight tubes which were eventually plugged in OTSG B.

This probe provides a three dimensional (C-Scan) display of the examination area and is considered to be the best probe available for the insitu characterization of defects.

The probe was used during this outage to develop data for future qualifications.

EXAMINATION EXTENT The.540" 5.D. probe is used to examine the unexpanded length of the tube from the lower roll transition in the lower tube sheet to the kinetic expansion transition in the upper tube sheet.

Although Technical Specification 4.19 requires the exuninatten of only the portion of tubir,g between the secondary faces of the upper and lower tube sheets, nearly all of the inspected tubes were examined over the entire unexpanded length.

1846A/0138a qa

p i-TOR 935 REVISION O PAGE 10 0F 54 As in previous examinations, some tubes would not pass the.540" probe.

As a result 58 tubes in OTSG A and 17 tubes in OTSG B were examined using a

.510" probe.

In addition 18 tubes in OTSG A were only examined to the secondary face of the lower tube sheet using the.540" probe but were not re-examined with the.510" probe since the required length had been examined.

The 93 tubes identified above included tubes with previous indications, however all locations with previous indications were evaluated using the.540" diameter probe.

Recording of Indications When analyzing the eddy current data, various indications are recorded by the data analyst. These indications fall into two basic groups Indications which require additional evaluations an/ indications which do not require additional evaluations. A complete list of all abbreviations and definitions is included as Appendix I.

-f..;

Indications which require additional evaluations:

Indications which are recorded as 20% LW. or greater, S/N, ADR, DTS or DSS are all re-examined using the 8xl Absolute Probe to determine if they are relevant indications and must be dispositioned.

(See Appendix I).

Indications which do not require additional evaluations.

Indications such as IDC, DNT, DNG and PVN are recorded for information only and do not require a follow-up 8x1 Absolute examination.

(See Appendix I).

1846A/0138a qa

b TOR 935 REVISION O PAGE 11 0F _54_

Indication Locations:

The locations of the ECT indications-are recorded

.to identify their'" elevation" or " axial location" in the OTSGs.

For free span indications the locations are recorded in inches above "+" the tube sheet surfaces or tube support plate center.

For indications located within the tube support plates the indications are recorded as "+" or " " from the center of the T.S.P.

The relative locations of the tube sheets and tube support plates (T.S.P.) are shown in Figure #1.

DATA ANALYSIS PROCESS l

l DATA ANALYST QUALIFICATIONS i

The data analysis process was performed by personnel qualified and certified to at least Level II A in accordance with the ECT contractors approved programs.

ed:

As a supplement to this qualificatimT,~s9fe specific indoctrination and

'.3 training was attended by all data analyst personnel.

The program included i

bothclassroomlecturesandhandsonpracticeusingeddyhurrentdataand experience from previous examinations.

The data used was from both TMI and 1

another B&W designed plant.

The training covered generic OTSG degradation 1

mechanisms and examination methods and also specifically addressed both the 540" S.D. (Bobbin Coll) and 8x1 absolute methods w'ich are used at TMI.

n I

l I

1846A/0138a aa q

l

TDR 935 REVISION O PAGE 12 0F 54 l

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ll TOR 935.

j REVISION O 1

PAGE' 13 0F 54 l

U

'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 /> and

)

'was' conducted by'the designated lead analyst. At the completion of the indoctri. nation each data analyst was required to pass a performance

.I

. demonstration for e -h method to be. analyzed. Appendix VI is an outline of l

the program.

.I DATA ANALYSIS SEQUENCE

-l 1

'I The data analysis process was performed in accordance 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% cf the 540" 5.0. data for each tube.

The data analysis process included:

)

I i

1.

Primary Analysis:

The primary analysis included a 100% evaluation q

of the ECT data and the recording of all attributes identified in-J Appendix I.

This analysis included recording the phase angle, i

percent through wall, voltage and location of the indications.

I l

2.

Secondary Analysis:

The secondary analysis also included a 100%

l review of the ECT data for the &ttributes identified in l

i Appendix I.

This analysis includes reviewing the phase angle, percent through wall and location of all indications recorded by the primary analyst.

In addition, any indications missed by the primary analyst are recorded at this time.

1846A/0138a qa e

_ _ _ _ _ _ _ _ _ _ - - - - _ _ _ _ _ _ _ _ _ ____________----_______--__--__---_----------_---------_____--_-____j

i TOR 935 REV!STON O I

J PAGE 14 0F 54 3.-

Official Results:

To complete the analysis process, the results of both t'he primary and secondary analysis are reviewe'd by the I

designated lead analyst.

This review combines the primary and secondary' analyst's results and also resolves any discrepancies.

In addition to the above production data analysts, an independent Level III Data Analyst performed a review of the data from approximately 250 tubes in each OTSG using a computerized data screening (COS) system.

The evaluation was performed to provide an additional perspective on the analysis process and to evaluate the future use of a computerized data screening (CDS) system.

This effort showed future use of a CDS system may be feasible, however, additional development work will be required.

The results of the independent analysis were compared with the production results and all discrepancies which could affect the disposition of the tubes were reviewed and resolved.

f No deficiencies were noted as a result of this review, however, suggestions for improving the analysis process will be incorporated for the next examination.

I 1846A/0138a qa

TDR 935 REVISION O PAGE 15 0F 54 IV.

EXAMINATION CATEGORIES AND RESULTS a

The locations of the tubes examined during this outage are shown on Figures 2 and 3.

The tubes were examined in 2 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 scope, purpose and examination results by category.

Section V of this report provides a discussion of the overall examination results including a review of past ECT data. When classifying the tubes by examination category, some tubes may satisfy the criteria for more than one category.

In those cases the tube is placed into the first category I

which applies following the sequence of this report.

A.

EXAMINATIONS REOUIRED BY TECHNICAL SPECIFICATION 4.19 A-1 DEGRADED TUBES Data Sets:

ISI-6R, ISI-5M, 151-84, ISI-82 l

SCOPE 1

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In OTSG "A", 252 tubes were examined.

In OTSG "B", 26 tubes were examined.

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TDR 935 REVISION 0 PAGE 18 0F 54 REASON FOR EXAMINATION The examination of the " Degraded" tubes was done for two reasons.

First, new examination results were compared to the results of previous examinations to determine if there was evidence of an active degradation mechanism occurring in the OTSGs. Second, the examination provides assurance that no tubes with indications exceeding the plugging criteria remain in service.

INCLUDED TUBES The " Degraded Tube" population was selected to meet the requirements of T.S. 4.19.2.a.l.

This population consists of all inservice tubes which had l

confirmed indications of 20% through wall or greater identified during any previous examinations.

RESULTS The results of the 7R examinations of the " Degraded" tubes were consistent with previous examination results.

The majority of the indications previously identified were confirmed and showed no evidence of change from previous examinations.

In some cases, however the reported % through wall values exceeded the established plugging criteria and the tubes were removed from service.

To determine the significance of these changes, GPUN performed the statistical evaluation of indications discussed below.

1846A/0138a qa L - - -__- -_ __ -

L L

L TDR 935 REVISION O PAGE 19 0F 54

.Following the examination, a total of ten (10) of the previously identified "Degrtded Tubes" (9 in OTSG A and 1 in OTSG B) were removed from service.

OTSG A Eight (8) tubes (A-43-1, A-122-31, A-125-1, A-125-87, A-127-2, A-129-1, A-134-3, A-136-4, A-151-12) had indications of 140% through wall in the freespan portion of'the tube.

The indications in these tubes were all 1-coil or 2-co11 in circumferential extent.

One (1) tube (A-78-31) had an indication of 140% through wall in the upper tube. sheet.

The circumferential extent of this indication was 2-coils.

OTSG B One (1) tube (B-34-71) had an indication of 140% through wall in the upper tube sheet portion of the tube. This indication was 1-coil in circumferential extent.

STATISTICAL EVALUATION OF I.D. INDICATIONS To monitor for evidence of continuing inner diameter initiated tube wall degradation, a group of indications in the degraded tubes were reviewed for change between 6R and 7R.

The indications used were I.O. indications evaluated at 120% T.W. in both 6R and 7R, and confirmed by the 8xl absolute examination in both 6R and 7R.

See Table I and Appendix II.

1846A/0138a qa

TOR 935 REVISION O PAGE 20 0F 54 In "A" OTSG 105 indications met the above-criteria.

The average change in the indication's was +3.0% of wall thickness between 6R and 7R (standard deviation 5.3% of wall).

The amplitude of these indications showed a mean change of +0.2 volts (standard deviation 0.3 volts).

In "B" OTSG 13 indications met the criteria.

The average change in each

' indication was -1.1% of wall thickness between 6R and 7R (standard deviation 5.4% of. wall). The amplitude of these indications showed a mean change of

+0.2 volts (standard deviation 0.2 volts).

When combined, the average change per indication for.both OTSG's was

+2.6% of wall (standard deviation 5 5% of-wall).

The mean amplitude change was +0.2 volts (standard deviation 0.3 volts).

To determine the significance of these. changes, the data was compared to similar evaluations performed during the 1986-5M and 1986-6R examinations.

See Table 2.

Based on this comparison 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, as documented in Reference 4, and do not indicate a trend on ongoing degradation.

l l

1 1

1846A/0138a qa j

=--~---m TDR 935 REVISION O PAGE __21 0F 54 TABLE 1 STATISTICAL EVALUATION OF DEGRADED TUBES NUMBER OF TUBES OTSG A OTSG B TOTAL Degraded Tube Population 252 26 278 Included in Statistical Evaluation

84 12 96 Excluded from Statistical Evaluation **

168 14 182 Statistical evaluation includes only I.D. Indications 120%.T.W. in 6R and 7R'and confirmed by 8x1-in both 6R and 7R.

Excluded indications are primarily threshold level indications which were either below the recording threshold or recorded as < 20%'through wall, or not confirmed by 8x1, during either 6R or 7R.

No. Inds No. Inds No. Inds Mean Std

% T.W.

1 T.W.

Change Deviation Number Increased Decreased Unchanged

% T.W.

OTSG

. Indications 6R-7R 6R-7R 6R-7R 6R-7R 6R-7R A

105 64 18 23

+3.0 5.3 8

13 6

5 2

-1.1 5.4 Both 118 70 23 25

+2.6 5.5 A&B No. Inds No. Inds No. Inds Hean Std Volts Volts Volts Change Deviation Number Increased Decreased Unchanged Volts Volts OTSG Indications 6R-7R 6R-7R 6R-7R 6R-7R 6R-7R A

105 81 12 12

+0.2 0.3 8

13 11 1

1

+0.2 0.2 l

Both 118 92 13 13

+0.2 0.3 A&B 1846A/0138a qa

f-TOR 935 REVISION-0.

PAGE 22 0F 54 TABLE 2 COMPARISON OF STATISTICAL EVALUATION TO PREVIOUS EVALUATIONS Mean STD Mean STD Number of Change Deviation Change Deviation Period Indications

% T.H.

% T.W.

Volts Volts-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 1986-5M data extracted from GPUN TDR 781, Revision 1 (Reference 8).

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

l l

1 1846A/0138a qa

TDR 935 REVISION O PAGE 23 0F 54 A-2 TECH. SPEC. RANDON SAMPLES Data Sets:

RANSAM, SECSAM SCOPE l

In OTSG "A", 1401 tubes were examined.

In OTSG "B",

1399 tubes were examined.

t REASON FOR EXAMINATION The' tubes in this sample have no history of degradation below the kinetic expansion.

They are examined to determine if any degradation has occurred since the last examination.

INCLUDED TUBES The initial sample included at least 37. 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 potent!al problems.

(The outer periphery is defined as the tubes located outside the radius of the outer support rods).

The remainder of the tubes were selectcc' to provide a representative sample of the tube bundle.

The samples were selected to include tubes not examined during 1986-5H or 1986-6R.

1846A/0138a qa l

.TDR 935 REVISION O PAGE 24 0F 54 As a result of examinations of the " Degraded Tubes" and the " Random Samples." additio'nal samples of 6% in each OTSG were examined.

The tubes for these samples were also biased towards the periphery of the OTSG.

RESULTS I

OTSG A In OTSG A, the examination of the initial 3% sample of tubes revealed two (2). tubes (A-91-126, A-128-2) with indications y,40% through wall.

The indications in both of these tubes were located in the freespan of the tubes and were 1-coll in circumferential extent.

In addition two (2) tubes (A-93-121, A-95-126) had indications of 20-39% through wall and'will be considered degraded tubes for the next examination.

As previously stated, the examination initial sample did require the examination of an additional 6% sample.

Because the defective tubes wer?

+

located in the periphery of the 9TSG the second sample wcs also biased towards that area.

In this sample, which included 935 tubes (6% - 932 + 3 extra), no indications which exceed 40% through wall were detected.

Two (2) tubes (A-131-1. A-134-49) had indications 20-39% through wall and will be considered degraded tubes for the next examination.

The indications in both of these tubes are 1-co11 in circumferential extent.

A re-evaluation of the past data for the six (6) tubes identified above showed the indications had been present during the 1984 examinations but had not been recorded.

The results of re-evaluating the previous data are discussed in Section V and Appendix V.

1846A/0138a qa

TDR 935 REVISION O PAGE 25 0F 54 OTSG B a

In the OTSG B initial sample, one (1) tube (B-58-10), had an indication 240% through wall and was removed from service.

This indication was located at the secondary face of the upper tube sheet and was 3-coils in circumferential extent. There were no other indications 120% through wall identified in this sample.

Based on the results of the initial sample, an additional 6% sample, 933 tubes (6% = 932 tubes + 1 extra), was examined. Since the detective tube was located near the periphery, the second sample of tubes was also biased towards this area of the tube sheet array.

In this 6% sample, two (2) tubes (B-29-3, B-96-5) had indications of 40%

through wall or greater.

The indications in these tubes were located within the upper tube sheet region of the OTSG and were limited to 2-coils in circumferential extent. Since the indications were located within the upper tube sheet ard a review of the 1984 examination data showed the indications had been present and had not changed, no additional tubes were examined.

No other indications 220% through wall were detected in this sample.

A re-evaluation of the past data for the three (3) tubes identified above showed the indications had been present during the 1984 examinations but had i

not been recorded.

The results of this re-evaluation are discussed in l

l Section V and Appendix V.

1846A/0138a aa

IDR 935 REVISION O PAGE 26 0F '54 B.

GPUNELECTIVEEXAMINATIONS l

r l

B-1 TUBES WITH INDICATIONS NOT CONFIRMED BY 8X1 ABSOLUTE EXAM IN PREVIOUS EXAMINATIONS Data Set:

8x1ACC SCOPE In OTSG "A", 33 tubes were examined.

l In OTSG "B", 13 tubes were examined.

REASON FOR EXAMINATION i

These tubes were examined to provide an additional level of confidence that the previously recorded indications are non-relevant.

INCLUDED TUBES All tubes which had 540 H.G.S.D. indications with phase angles of 6*-110' in the 86-5M or 86-6R examinations but which were not confirmed by the 8x1 absolute exam, were included in this category.

Indir.ations with phase angles outside these parameters were not included since the indications would be (20%

through wall and no additional actions would be required.

1846A/0138a qa

__ --____-___ ___=_ _ _ _ __ - _ _ _ __

TDR 935 REVISION O PAGE 27 0F 54 RESULTS r

OTSG A In OTSG A the indications in twenty-three (23) of the thirty-three (33) tubes continued to appear as non-relevant.

In the ten (10) remaining tubes (A-34-1, A-35-54, A-52-34, A-63-126, A-94-113, A-122-26, A-124-100, A-125-97, A-130-60, A-139-67) indications of 20-39% through wall were confirmed by 8x1 and the tubes will be added to the degraded tube population for the next outage.

In all cases these indications were limited to 1-co11 in circumferential extent.

In one (1) tube (A-88-77) an indication was identified in the 200 KHz absolute (wear) channel. This indication did not appear to penetrate the tube l

l wall but looked similar to indications recorded at other plants from a loose I

part lying against the tube.

To further define the indication, the surrounding tubes were examined using the.510" 5.D. (see Category B-5) and the tube with the indication was examined by 8x1. Based on these examinations and a review of the past data for A-88-77 the indication was determined to be non-relevant and not an Indication of a foreign object or loose part.

i OTSG 8 l

l In OTSG B the indications in all thirteen (13) of the tubes continued to appear as non-relevant.

1 1

1846A/0138a ca I

l 1

i

_________O

l:

i TCR 935 i

REVISION O PAGE 28 0F 54 3

B-2 LANE / HEDGE TUBES Data S'et:

LANHEG SCOPE In OTSG "A", 413 tubes were examined-.

In OTSG "B", 422 tubes were examined.

REASON FOR EXAMINATION

-OTSG's have typically experienced degradation in the lane / wedge tubes.

In consideration of the possibility of accelerated ~ degradation in this area, GPUN elected to examine all of the lane / wedge tubes in accordance,with paragraph 4.19.2.a.4.(1) of the Tech. Spec.

INCLUDQ, TUBES this enmitiation included all in-service tubes ir. the Lane and Hedge This includes the tubes in the 3 rows on each side of the open area.

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 tubes are the tubes included in the wedge formed by drawing a line from Row 66 Tube 1 to Row 67 Tube ;5 and from Row 86 Tube I to Row 77 Tube 15.

i 1846A/0138a qa

TDR 935 REVISION O PAGE _29_ 0F 54 RESULTS a

OTSG A it In OTSG A, two (2) tubes (A-79-26, A-79-27) had 1-coil indications of 20-39% through wall (outside the exclusion zone) and will be examined as degraded tubes durtig the next' examination. One (1) tube (A-73-44) had a distorted support plate indication at the 4th T.S.P. which could not be quantified due to the signal to noise ratio.

Based on the results of the 540 S.D. and 8xi-ABS examinations, it was determined the indication is < 40%

through wall and.the indication will be monitored during the next examination.

One (1) tube (A-84-1) had an indication at the entrance to the upper tube sheet and was removed from service.

This indication was identified as a DTS or Distorted Tube Sheet during the.540-50 examination. A subsequent 8xl examination confirmed the presence of a 1-coil indication. Because of the distortion of the signals the origin and percent through wall depth could not be determined.

This indication is further discussed in Section V of this report.

The indications in A-79-26 and A-73-44 had been previously recorded but not assigned through wall values in 1986-6R.

The indication in A-79-27, although present, had not been recorded.

No additional data reviews were performed for A-84-1.

See Section V and Appendix V for details.

l l

l 1846A/0138a qa

TDR 935 REVISION 0 i

PAGE 30 0F 54 OTSG B t

I in OTSG B. four (4) tubes (B-75-5, B-75-5. B-75-7, B-75-8) had indications of wear at the 15th T.S.P.

This we'er was determined to exceed the GPUN 20% through wall plugging criteria for the lane wedge region and the tubes were removed from service.

A res ew of the previous data for these tubes showed the indications had been present but not previously recorded.

(See Section V for more details).

No additional indications >20% through wall were identified in this data set.

1846A/0138a aa

TDR 935 REVISION O PAGE 31 0F 1 B-3 TU8ES WITH S/N INDICATIONS Data S'et: S/N SCOPE-In OTSG "A", 41 tubes were examined.

In OTSG "B",

11 tubes were examined.

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

INCLUDED TUBES During previous outages, poor signal to noise (S/N) ratio indications-of less than 1.0 volt were detected and recorded using the.540-HGSD but could not be quantified due to the poor (<3:1) signal to noise ratio. These indications were then examined using the 8x1-ABS technique to verify the small circumferential extent.

Based on the results of these examinations, indications of <1.0 volt and 12 coils in circumferential extent remained inservice 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 j

outage.

l 1846A/0138a qa

!w__-__-_______-_____--_____.

TDR 935 REVISION O PAGE 32 0F 54 RESULTS o

OTSG A The indications in thirty-eighc (38) of the forty-one (41) tubes continued to be below the threshold for evaluating percent through wall.

In two (2) of the tubes (A-48-83, A-95-124) 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 one (1) tube (A-122-31) the indication was determined to be greater than 40%

through wall and the tube was removed from service.

In all cases, these indications were limited to 1-coil in circumferential extent.

OTSG B The indications in ten (10) of the eleven (11) tubes continued to be below the threshold for evaluation. One (1) tube (B-22-22) had an indication eva'uated as 20-39% through wall and will be examined as a degraded tube durli:9 the next outage.

This indication was 1-coil in circumferential extent.

l l

1846A/0138a ca

TDR 935 REVISION O PAGE 33 0F _54 B-4' HECHANICAL CLEANING BASELINE Data S'et: WSC SCOPE In OTSG "A", 50 tubes were examined In OTSG "B", 50 tubes were examined REASON FOR EXAMINATION During outage 7R GPUN performed mechanical cleaning (Water Slap Cleaning) to remove deposits from the secondary side of the OTSGs.

Since this cleaning j

process involves pulsing nitrogen (N ) into the secondary side of the OTSG 2

and displacing large volumes of water, a pre cleaning and post cleaning.

baseline was desired in areas where the tubes will be exposed to the highest stress.

l INCLUDED TUBES The tubes selected for examination were located near the N injection 2

nozzle locations. As stated in Reference 6 the tubes exposed to the most i

adverse loadings are located eighteen (18) tubes from the centerline of the nozzle and three (3) tubes in from the periphery.

The tubes were therefore i

selected from this envelope in front of four (4) of the eight (8) nozzles in i

l~

each OTSG.

i i

j 1846A/0138a qa IL_

TOR 935 REVISION O PAGE 34 0F 54 RESULTS a

In OTSG A, one (1) tube (A-93-123) had an indication of 20-39% through wall and will be monitored as a degraded tube during the next examination.

This indication was 1-co:1 in circumferential extent.

A re-evaluation of the 1984 data for this tube showed the indication had been present but not recorded.

See Section V and Appendix V for details of this data review.

In OTSG B, no indications >20% through wall were detected.

1846A/0138a qa

j TDR 935-e REVISION 0

^

PAGE 35' 0F 54' B-5' POSSIBLE LOOSE'PART 6

Data (et: 'PLP SCOPE OTSG "A", 5 Tubes REASON FOR EXAMINATION During the examir..tlon of the tubes identified in Section B-1., an indication of a possible loose part was identified in one tube. To determine

.lf the indication was due to a possible foreign object the surrounding tubes were examined.

INCLUDED TU8ES This data set included the'five (5) inservice tubes surrounding tube-A-88-77.

NOTE: The sixth tube is plugged.

RESULTS Based on the examination of these tubes and further evaluation of A-88-77 it was determined no loose parts or foreign objects were present.

1 i

1846A/0138a aa

C TDR 935

.REV!SION 0 PAGE 36_ 0F 54 B-6 EXTRA Data fet:

EXTRA 1

SCOPE l

OTSG."A", 2 Tubes-OTSG "B",

17 Tubes-REASON FOR EXAMINATION During the course of the examinations, 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 TUBES These tubes are randomly located.

RESULTS No indications 120% through wall were identified in these tubes.

1846A/0138a qa

TDR 935 REVISION O PAGE 37 0F 54 V.

DISCUSSION OF RESULTS o

Characterization of Indications The indications reported during 1988 were characterized by location, percent through wall, amplitude, and circumferential extent.

(See Figures 4 through 13).

This characterization showed that the majority of indications are inner diameter initiated and are located towards the top and the outer periphery of the OTSGs.

This is the same distribution of indications as identified during the previous examinations.

The amplitudes (voltage) of the 1988-7R indications were typically small

(<2 volts) which is also. consistent with the 1982, 1984, 1986-SM and 1986-6R results. The characterization by percent through wall shows most of the indications are partial through wall with 96% of the indications recorded as

<JO%throughwall.

This is consistent with the 1984, 1986-SM and 1986-6R

edaminationresults.

By contrast, approximately 40% of the 1982 indications v

n4 were >90% through wall.

The circumferential extent of the 1988-7R indications was 1 or 2-coils for all indications except one (1) 3-coll indication. This is consistent with the 1984, 1986-5M and 1986-6R examination results and showed a decrease from the circumferential extent of the 1982 indications.

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TOR 935 REVISION O PAGE 48 0F 54

. Evaluation of Indications at the Tube Sheet Entry a

i Two (2) tubes were removed from service, one (1) in OTSG A and one (1) in j

-0TSG B, because of indications at the entrance to the upper tube sheet.

In I

the first case, A-84-1, the indication was a distorted signal-and no percent I

through wall determination could be made. The indication was confirmed by the 8x1 absolute and'had a circumferential extent of 1-coll. Although no percent through wall determination could be made, the indication was considered to be greater than 20% tnrough wall based on the detectability of the indication.

Because of the 20% through wall plugging limit for the tubes in the lane wedge, the tube was plugged.

In the other tube, B-58-10, the indication was readily detectable and determined to be approximately 76-86% through wall and 3-coils in circumferential extent.

Both of these indications appear to originate on the inner diameter of the tube.

i These indications occur at the entrance to the upper tube sheet, an area previously identified by GPUN as having reduced eddp current capabilities using the MIZ-12 ECT instrument.

The reduced capabilities in this area were caused by " saturation" of the ECT instrument which prevents " mixing out" the tube sheet entry signal using multi-frequency techniques.

This " saturation" is discussed in TOR 423 (Reference 3).

By using the MIZ-18, the negative effects of this area have been reduced thereby making the indications more detectable.

However, the presence of 1

minor denting in this area prevents obtaining sensitivity levels equal to the freespan area of the tube.

I 1846A/0138a qa

TOR 935 REVISION O' PAGE 49 0F 54 The~ method used to screen indications in this area is to record all distorted tube sh'eet entry and tube support plate' signals using the.540 S.D.

technique and retest the tubes using the axl absolute probe which is not affected as strongly by the tube sheet entry. This method identified distorted tube sheet entry or tube support plate signals in 2 tubes in OTSG A and 4 tubes in OTSG B.

The 8xl-ABS examination resulted in the two (2) tubes being removed from service.

The remainder were determined to be acceptable.

Of the six (6) tubes evaluated for Indications at the tube. sheet entrance, three (3) are in the la.4/ wedge area and the other three (3) are in the outer periphery of the OTSG.

These results are consistent with the SM and 6R examinations which resulted in tubes being plugged for similar indications.

Evaluation of Wear Indications In OTSG B, four (4) tubes along the open inspection lane (B-75-5, B-75-6,

-B-75-7, B-75-8) had indications of wear at the 15th T.S.P.

.These Indications were initially identified as distorted supports during the.540 S.D.

examinations.

Subsequent 8xl-ABS examinations confirmed the presence of wear.

1846A/0138a aa L-______________________-_____-____-__________-_______

TDR 935 REVISION O PAGE 50 0F 54 Using the combined information from the.540 S.O. and 8xl-ABS examinations, the' wear can be characterized as occurring under one (1) of the three (3) contact surfaces of the broached T.S.P.

The wear area extends over the entire 1 1/2" thickness of the T.S.P.

This wear configuration is consistent with wear patterns identified in other OTSGs as documented in Reference 7.

Based on the amplitude (voltage) of the ECT signals, the depth of wear is estimated to range from approximately 18-24 percent through wall for tube B-75-8 to 34-45 percent through wall for B-75-6.

These estimates are based on the responses from machined wear standards using industry standard techniques.

A review of the 1986-6R data for these tubes showed the wear had been j

present at that. time. However, the limitations of the MIZ-12 ECT instrument i

used.during 1986-6R prevent making percent through wall estimates for determining growth rates between 1986-6R and 1988-7R.

With the completion of the 1988-7R examinations a wear baseline is now available for the entire Lane Wedge area.

To further define the extent of wear, these tubes were also examined using the Motorized Rotating Pancake Coil (MRPC).

This technique further I

confirmed the axial and circumferential orientation and extent of wear.

At this point no further depth estimates can be made.

l 1846A/0138a qa

t TDR 935 REV!SION O PAGE 51 0F _54_

Review of Previous Data The ECT examination process included a review of previous examination data.

This review was performed to better characterize and understand apparent changes in the ECT results from previous outages.

This review and comparison included all tubes which were plugged due to indications of 40%

through wall or greater and also included a sample of tubes which had indications of'20-39% through wall recorded for the first time during outage 7R.

Based on the results of this review, the tubes can be categorized in the following groups.

The specific details for each tube are included in Appendix V.

1.

Tubes with indications >40% through wall in 7R which exhibited 1

1 0%-

change from 6R-7R.

This category includes seven (7) tubes in OTSG A and one (1) tube in OTSG B.

These tubes had previously recorded indications of <40% through wall and the tubes were examined to monitor the indications. Although 9;

indications in these tubes now exceed the 40% through wall plugging limit, the changes in the indications since the last examination are 110% through wall and are within the repeatability of the ECT process.

These tubes have subsequently been removed from service and no additional reviews were 4

performed.

1846A/0138a qa

TOR 335

' REVISION O PAGE-52 0F 54 2.

Tubes with indications >40% through' wall in 7R which exhibited >10%

change'from the last examination.

[.

This group includes eight (8) tubes, five (5) in OTSG A and three.(3) in OTSG B.

Based on the initial comparison of the 7R results to the previous results, these indications showed an apparent increase of >10% through wall.

To determine the cause of this apparent change, the previous examination data was re-evaluated.

Upon re-evaluation it was determined the indications in three (3) of the tubes had not changed since the previous examination (1984), but the indications had previously gone undetected due to their poor signal to noise ratto.

In the remaining five (5) tubes the changes in assigned percent through wall were attributed to the inherent variability of the ECT process.

This is based in part on an evaluation of changes in the signal shape, phase angle and amplitude between outages in which indications showed both increases and decreases in depth and amplitude and therefore do not indicate a trend of ongoing degradation.

5.

Tubes with indications of 20-39% through wall which were not previously recorded.

During outage 6R previously unreported indications of 20-39% through wall were reported in seven (7) tubes in OTSG A.

The previous data was reviewed for these tubes and showed small amplitude indications had been present during previous outages in six (6) of the tubes.

The detection of these indications therefore does not indicate an active mechanism, but rather the limitations associated with screening threshold level indications.

1846A/0138a ca

e.

TDR 935 REVISION O PAGE

,5.3 OF 54

- VI.

CONCLUSIONS a

~

Based on the results of the 1988, outage 7R, ECT examinations.and data evaluations, GPUN was.able to reach the following conclusions:

i 1

l' l.

1, Based on the evaluation of the previously " Degraded Tubes," the occurrence of indications which exceed the repeatability of the ECT processes do not indicate a trena of ongoing degradation.

2.

The examination results of the Tech. Spec. random samples did not i

reveal a trend of new or continuing damage mechanisms.

The majority of the indications identified during this examination were l

determined to have been present during previous inspections.

3.

The GPUN Elective Examinations confirmed the minor nature of indications in this category.

The indications which exceed the 407.

through wall plugging limit indicate GPUN should continue to monitor indications of this type.

4.

The wear detected at the 15th T.S.P. in the Lane Hedge region is consistent with tube support plate to tube wear observed in other OTSGs.

i 1846A/0138a aa

']

TER 335 REVISION O PAGE 54~ OF 54

VII, REFERENCES o

1.

~ Appendix A to the TMI-l Operating License, Amendment 116. Technical Specification 4.19, 04/18/86.

2.

GPUN TOR 423, Rev. 1. R4 Barley, J. Janiszewski, G. Rnedrick, M. Torborg, "Three Mile Island - Unit 1 OTSG Tubing Eddy Current Program Qualification,"-03/15/84 3.

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

4.

Three Mile. Island Nuclear Station Unit No.1 Surveillance Procedure 1300-48, Rev. 2, " Eddy. Current Examination of.0TSG," 03/21/86.

5.

GPUN TDR 652, Rev. 2. G. E. Rhedrick, M. T. Torborg, D. L. Langan,

" Evaluation of the 1984 Required Technical Specification Examination for the TMI-1 OTSG," 12/02/85.

6.

GPUN IOM, 5310-88-531, J. D. Abramovict to R. O. Barley, " Suggested OTSG Tube Sample Population To Be Inspected in 7R Before WSC "

01/05/88.

7.

PWR Steam Generator Examination Guidelines, Revision 2 August 1988, EPRI.

l 8.

GPUN TDR 781, Rev. 1, M. T. Torborg, "Results of SM ECT Examinations of the THI-l OTSGs," 06/16/86 l

L 9.

GPUN TDR 839, Rev. O, M. T. Torborg, "Results of the 1986-6R OTSG j

Eddy Current Examinations," 03/16/87

\\

1846A/0138a aa e_ -

_______I

a Appendix I DDA-4 Analysis Codes 1

I l

L. -- - -. _

i

TDR 935 REV. O APPEND 1X I Page 1 CF 3 o

DDA-4 ANALYSIS CODES TO BE PUT IN PERCENT COLUMN Absolute Drift ADR Indication Not Reportable 10 Retest ADE RAD Incomplete Test 10 Bad Data RDA Retest INC R8<

Reeeae BDA RBD No Detectable Discontinuity N9 Dent DNT Retest DNT RDN Permeability Variation Pi31 Reteat PVN RP' Dent With Possible Indication DNI Retest DNI RDI Plugged P8 Ding DNC Roll Transition With Possible Retest DNC RDG Indication DB Retest DRI R1 Distorted Roll Transition DET Obstructed 03 Retest DET RET Ratest OBS R8)

Distorted Roll Transition W/ Pass Sludge Indication DRI Ratest SLC kOC Ratest DEI RRT Signal To Noise Ratio Si Distorted Support Signal DSS Retest DSS RDS Template Obstruction TM Ratest TM0 R3 Distorted Top of Tubesheet DTS Ratest DTS RDT Template Flug TM Retest TMF R2 Expansion Transition Location ETL Retest RTL RRL Tube No Test TN' Ratest TNT RN Fixture FIX Reteat FIZ RFK Tube Nvaber Check TN Retest TNC OX ID Chatter IDC Ratest IDC RDC Tube Restricted TO Retest TRS R2 Indication Het Found INF Retest INF RNF Undefined Signal UDl Retest UDS RE

TDR 935 REV. O APPENDIX I Page 2 OF 3 EXPLANATION OF DDA-4 ANALYSIS CODES i

Normally refers to drif t in the crevice of non-expanded Absolute Drift (ADR) tube 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 absolutes Bad Data (BDA)

Self explanatory.

Dent (DNT) - Tube I.D. smaller than nominal I.D... occurring at support plate intersections or top of tube sheets.

Recorded in differential six.

Dina (DNG) - Similar to dent 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 donc but is not measurable.

Recorded from differential mix.

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.

o Distorted Suooort Sianal (DSS) = An indication at the intersection of a support place which may be indicative of a possible discontinuity. The signal may be distorted by deposit, dents, or saturated drilled hole supports.

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

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

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

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

ID Chatter (IDC) - Caused by manufacturing process (p11gering). Characterized by long areas of horisontal motion.

Recorded in prime frequency.

TDR 935 REV. O APPENDIX I Page 3 OF 3 o

Incoyplete Test (INC) - Tube not run to the extent required or complete tube not recorded.

Indication Not Foued (INF) -

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

Indication Not Reportable (INR) - Indication that has been previously reported but does not meet current reporting criteria.

No Detectable Discontinuity (NDD) - Entry not required if DSASE systes used.

Obstructed (OSS) - 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 free-standing tube, measured in differential mix at support plate intersections.

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

$1udae (SLC) - Accumulation of ferromagnetic asterial on top of tube sheets or support plates.

Recorded in lowest absolute frequency as per specific plant requirements.

I Sianal To Noise Ratio (S/N) - Small amplitude indications (less than 1 volt with 540 BCSD, less than 1/2 volt normal Sain) that do not have a sinimum of a 3 to 1 signal to noise ratio.

Temelste Obstruction (TMO) - Self explanatory.

Tube No Test (TNT) - Self explanatory.

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

Tube Restricted (TES) - Caused by tube itself, i.e. bent tube lip, karge dents or dings.

Undefined Sianal (UDS) - A signal that is re-examined with the Sul technique

7 I

Appendix II Statistical Evaluation Data 1

1

1 TDR 935 REV. O APPENDIX 1I Page 1. G F. W j

THREE MILE ISLAND: UNIT 1 COMPONENT-: SG

'A' OUTAGE : 7R

'j INDICATIONS IN STATISTICAL EVALUATION OF DEGRADED' TUBES Row. Tuoe.0ut-Exam Exam inot:stien.no

.,a age

ecn Heason vocatten 'vea

..w.

voi:

is s t e u i

4 74 ~

$*v-M1416 !bt 01 +

o.o 7

20

.~i oH 5*0-HGbD 15I vi;+

o.T

/

'2 1.

d TR 540-MIZiG 151 vi;+ 12.1 7

23 1. _a-cR 540-HGSD ISI v13+ 12.2 o

20 i.tl eR 540-HGSD ISI 015+ 35.9 6

20 2.

v 7R 540-MIZ18 ISI 015+ 35.9 e

10 2.o7 2

6 7R 540-MIZ16 ISI 015+ 28.8 9

30 1.82 6R 540-HGSD SECSAM 015+ 29.0 8

26 2.23-7R 540-MIZ18 ISI 015+ 40.4 8

26 1.71 6R 540-HGSD SECSAM 015+ 40.6 8

26 1.84 3

25 7R 540-MIZ18 ISI 015+ 42.8 8

28 1.36 6R 540-HGSD ISI 015+ 42.9 8

26 1.35 4

28 6R 540-HGSD ISI 015+ 30.5 6

20 2.06 7R 540-MIZ18 ISI 015+ 30.8 7

25 2.09 4

29 6R 540-HGSD ISI 015+ 27.2 8

26 1.94' 7R 540-M1Z18 ISI 015+ 27.3 10 36 1.71 6R 540-HGSD ISI 015+ 35.8 7

23-0.92 1

7R 540-MIZ18 ISI 015+ 35.9 7

25 0.76 l

5 3

6R 540-HGSD ISI 015+ 43.9 7

23 1.56 7R.

540-MIZ18 ISI 015+ 44.2 9

30 1.69 6R 540-HGSD ISI 015+ 44.6 11 36 2.60 7R 540-MIZ18 ISI 015+ 44.7 10 33 3.19 6-43 7R 540-MIZ18 ISI UTS4 3.5 9

32 2.12 6R 540-HGSD ISI UTS+

3.6 8

26 2.25 6

47 6R 540-HGSD ISI 015+ 19.7 6

20 1.00 7R 540-MIZ18 ISI 015+ 19.9 7

25 1.19 6

48 6R 540-HGSD ISI UTS+

0.4 9

30 1.78 7R 540-MIZ18 ISI UTS+

0.4 11 36 2.03 MORE =>

TDR 935 REV. O APPENDIX II Page 2 OF 9 THREE MILE ISLAND: UNIT 1 COMPONENT : SG

'A' OUTAGE : 7R INDICATIONS IN STATISTICAL EVALUATION OF DEGRADED TUBES Row Tube Out-Exam Exam Indication Ind Ind age Tech Reason Location Deg T.W.

Volt Notes a

2 7R 540-MIZ18 ISI 012+ 25.1 8

26 2.49 6R 540-HGSD ISI 012+ 25.2 8

26 1.98 6R 540-HGSD ISI 012+ 33.4 6

20 1.o6 7R 540-MIZ18 ISI 012+ 33.4 10 33 2.26 11 4

6R 540-HGSD ISI 015+ 21.1 8

26 0.98 7R 540-MIZ18 ISI 015+ 21.1 8

26 1.19 19 84 6R 540-HGSD ISI 015+ 32.6 6

20 1.10 7R 540-MIZ18 ISI 015+ 32.6 8

26 1.10 7R 540-MIZ18 ISI 015+ 34.4 9

32 1.19 6R 540-HGSD ISI 015+ 34.6 7

23 1.20 7R 540-MIZ18 ISI 015+ 38.1 8

26 1.51 6R 540-HGSD ISI 015+ 38.2 7

23 1.47 7R 540-MIZ18 ISI 015+ 40.8 9

32 0.86 6R 540-HGSD ISI 015+ 40.8 10 33 1.00 20 56 6R 540-HGSD ISI 015+ 33.4 8

26 1.03 7R 540-MIZ18 ISI 015+ 33.5 11 36 0.68 20 85 7R 540-MIZ18 ISI 010+ 18.3 11 36 1.44 6R 540-HGSD ISI 010+ 18.4 10 33 1.24 6R 540-HGSD ISI 010+ 21.1 7

23 1.05 7R 540-MIZ18 ISI 010+ 21.1 9

30 1.09 25 21 7R 540-MIZ18 ISI 015+ 37.6 8

26 1.17 6R 540-HGSD ISI 015+ 37.7 8

26 1.04 27 96 6R 540-HGSD ISI 015+ 37.5 6

20 1.00 7R 540-MIZ18 ISI 015+ 37.5 6

20 1.33 Z8 78 6R 540-HGSD ISI 015+ 14.4 7

23 2.55 7R 540-MIZ18 ISI 015+ 14.5 8

26 3.05 l

24 3

7R 540-MIZ18 ISI UTS+

1.8 10 36 1.44 6R 540-HGSD ISI UTS+

2.0 8

26 1.30 l

MORE =-

TDR 935 REV. O APPENDIX II Page 3 OF 9 THREE MILE ISLAND: UNIT 1 COMPONENT : SG

'A' OUTAGE : 7R INDICATIONS IN STATISTICAL EVALUATION OF DEGRADED TUBES Row Tube Out-Exam Exam Indication Ind Ind age Tecn Reason Location Deq T.W.

Volt Notes 36 96 6R 540-HGSD S/N 015+ 29.8 11 36 1.13 7R 540-MIZ18 ISI 015+ 29.9 11 36 0.92 39 110 6R 540-HGSD ISI 015+ 39.6 11 36 1.03 7R 540-MIZ18 ISI 015+ 39.6 9

30 1.21 41 94 6R 540-HGSD ISI 015+ 15.9 6

20 0.95 7R 540-MIZ18 ISI 015+ 16.1 8

26 1.21 43 82 6R 540-HGSD ISI 007+ 37.6 7

23 1.06 7R 540-MIZ18 ISI 007+ 37.6 11 36 1.08 47 84 7R 540-MIZ18 ISI 015+ 39.7 8

26 1.16 6R 540-HGSD ISI 015+ 39.8 8

26 0.92 48 118 6R 540-HGSD ISI 014+ 29.4 9

30 0.86 7R 540-MIZ18 ISI 014+ 29.5 9

30 1.03 49 73 6R 540-HGSD ISI UTS+

5.0 9

30 1.60 7R 540-MIZ18 ISI UTS+

5.0 9

30 2.11 57 63 7R 540-MIZ18 ISI 015+ 36.9 7

25 2.26 6R 540-HGSD ISI 015+ 37.0 9

30 2.01 oO 125 7R 540-MIZ18 ISI 015+ 25.5 6

20 1.22 6R 540-HGSD ISI 015+ 25.6 8

26 1.13 64 129 6R 540-HGSD BX1ACC 015+ 46.0 11 36 1.55 7R 540-MIZ18 ISI 015+ 4o.O 11 36 1.68 66 1

6R 540-HGSD ISI 004+ 27.6 9

30 2.37 7R 540-MIZ18 ISI 004+ 27.7 8

26 2.61 e6 127 6R 540-HGSD ISI 015+ 44.8 6

20 1.17 7R 540-MIZ18 ISI 015+ 44.9 8

26 1.37 72 86 7R 540-MIZ18 ISI UTS+

3.8 11 36 1.6e MORE =/

TDR 935 REV. O APPENDIX II Page 4 OF 9 THREE MILE ISLAND: UNIT 1 COMPONENT : SG

'A' OUTAGE : 7R INDICATIONS IN STATISTICAL EVALUATION OF DEGRADED TUBES Row Tube Out-Exam Exam Indication Inc 7.

Ind age Tech Reason Location Deg T. W.

Volt Notes 6R 540-HGSD ISI UTS+

3.8 11 36 1.23 74 28 7R 540-MIZ18 ISI UTS+

5.7 10 33 1.86 6R 540-HGSD ISI UTS+

5.8 11 36 1.91 74 30 6R 540-HGSD LANEWEDGEUTS+

5.6 10 33 1.25 7R 540-MIZ18 ISI UTS+

5.8 10 33 1.70 75 123 6R 540-HGSD ISI 015+ 24.1 6

20 1.61 7R 540-MIZ18 ISI 015+ 24.2 7

23 2.36 81 92 6R 540-HGSD ISI UTS+

0.6 11 36 1.01 7R 540-MIZ18 ISI UTS+

0.6 8

26 1.10 82 32 6R 540-HGSD ISI UTS+

6. 2 6

20 2.55 7R 540-MIZ18 ISI UTS+

6.5 9

30 2.19 83 17 7R S40-MIZ18 ISI 015+ 35.3 8

26 1.52 6R 540-HGSD ISI 015+ 35.6 10 33 1.24 85 57 7R 500-MIZ19 ISI UTS+

3. 7 9

30 1.38 6R 540-HGSD SECSAM UTS+

3. 7 7

23 1.46 87 1

7R 540-MIZ18 ISI 012+

7.1 6

20 3.99 oR 540-HGSD ISI 012+

7. 2 6

20 3.31 90 128 7R 540-MIZ18 ISI 015 0.2 7

23 3.00 eR 540-HGSD ISI 015+

0.0 8

26 1.78 7R 540-MIZ18 ISI 015+

2.0 6

20 1.42 6R 540-HGSD ISI 015+

2.1 8

26 1.05 95 111 7R 540-MIZ18 ISI 015+ 40.3 7

23 1.49 6R 540-HGSD ISI 015* 40.5 6

20 1.26 95 123 6R 540-HGSD ISI UTS+

1.9 7

23 3.29 7R 540-MIZ18 ISI UTS+

1.9 10 33 4.11 l

MORE =>

TDR 935 REV. O APPENDIX II Page

.5 OF 9

'THREE MILE ISLAND: UNIT 1 COMPONENT : SG

'A' OUTAGE : 7R INDICATIONS IN STATISTICAL EVALUATION OF DEGRADED TUBES Row Tube Out-Exam Exam Indication Inc

4 Ind age Tech

. Reason

-Location Deg T.W.

Volt Notes 96 32 6R 540-HGSD ISI 015+ 37.5 9

30 1.58-7R 540-MIZ18 ISI 015+ 37.5 10 33 1.84 7R 540-MIZ18 ISI 015+ 43.2 9

30 1.23 6R 540-HGSD ISI 015+ 43.2 10 33 1.01 100 122 7R 540-MIZ18 ISI UTS+

4.8 10 33 2.08 6R 540-HGSD ISI UTS+

5.0 8

26 1.56 101 51 6R 540-HGSD ISI UTS+

4.0 11 36 1.63 7R 540-MIZ18 ISI UTS+

4.0 10 33 1.85 101 61 7R 540-MIZ18 ISI 015+ 29.4 10 33 2.16

'6R 540-HGSD ISI 015+ 29.5 7

23 1.73 103 121 7R 540-MIZ18 ISI 014+ 15.6 6

20 1.31 6R 540-HGSD ISI 014+ 15.7 6

20 0.98 7R 540-MIZ18 ISI 015+ 43.8 11 36 2.59 6R 540-HGSD ISI 015+ 43.9 10 33 2.19' 104 121 7R 540-MIZ18 ISI 014+

3.0 8

26 1.01 6R 540-HGSD ISI 014+

3.1 7

23 1.50 7R 540-MIZ18 ISI 015+ 45.6 9

30 1.69 6R 540-HGSD ISI 015+ 45.6 8

26 1.35 107 29 6R 540-HGSD ISI 015+ 37.6 8

26 1.01 7R 540-MIZ18 ISI 015+ 37.6 7

23 1.29 107 120 7R 540-MIZ18 ISI UTS+

3.7 7

23 1.62 6R 540-HGSD ISI UTS+

3.8 6

20 1.31 7R 540-MIZ18 ISI UTS+

4.6 e

20 1.94 6R 540-HGSD ISI UTS+

4.8 8

26 1.29 109 108 7R 540-MIZ18 ISI UTS+

3.5 8

26 3.70 6R 540-HGSD ISI UTS+

3.7 11 36 2.53 110 52 6R 540-HGSD ISI UTS+

1.0 11 36 1.39 7R 540-MIZ18 ISI UTS+

1.1 11 36 1.75 VtFi

=

Y_____--__-____-_-_______---------------------------------------------------------------------------^

TDR'935 REV. O APPENDIX II Page-6 OF 9-THREE MILE ISLAND: UNIT 1 COMPONENT : SG

'A' OUTAGE : 7R INDICATIONS IN STATISTICAL EVALUATION OF DEGRADED TUBES Row Tube Out-

. Exam Exam Indication ind Y.

lnd age Tech Reason Location Deg T.W.

Volt Notes 6R 540-HGSD ISI UTS+

2. 6 ' 11 36 1.30 7R 540-MIZ18 ISI UTS+

2.7 11' 36 1.32 112 116 17R 540-MIZ18 ISI 012+ 35.0 8

26 1.15 6R 540-HGSD ISI 012+ 35.1 6

20 0.83;

'115 26 7R 540-MIZ18 ISI 015+ 25.6 11 36 1.55 6R 540-HGSD ISI-015+ 25.8 11 36 1.07 119 77 7R 540-MIZ18 ISI 015+ 29.5 10 33 1.90 6R 540-HGSD ISI 015+ 29.5 7

23 1.56-120 67 7R 540-MIZ18 ISI 015+ 36.1 11 36 1.45 6R 540-HGSD ISI O15+ 36.2 10 33 1.03 121-104 6R 540-HGSD-SECSAM 015+

4.0 7

23 1.28 7R 540-MIZ18 ISI 015+

4.1 10 33 1.47 122 30 6R 540-HGSD SECSAM UTS+

0.8 7

23 1.20 7R 540-MIZ18 ISI UTS+

0.8 8

26 1.45 123.

96 7R 540-MIZ18 ISI 015+ 41.8 8-26 2.38

~

6R 540-HGSD ISI 015+ 41 9 7

23 1.81 124 1

6R 540-HGSD ISI 012+ 23.3 7

23 l '. 6 8 -

7R 540-MIZ18 ISI 012+ 23.4 6

20 1.94 125 1

7R 540-MIZ18 ISI 015+ 13.8 8

27 1.92 6R 540-HGSD ISI 015+ 14.0 7

23 1.80 7R 540-MIZ18 ISI 015+ 14.7 7

23 2.65 6R' 540-HGSD ISI 015+ 15.0 8

26 2.20 7R 540-MIZ18 ISI 015+ 30.1 12 40 4.41 6R 540-HGSD ISI 015+ 30.4 10 33 3.80 126 34 7R 540-MIZ18 ISI 015+ 36.7 10 33 1.13 6R 540-HGSD OX1ACC 015+ 36.8 8

26 1.18 MCRE =-

1

TDR 935 REV. O APPENDIX II Page 7 OF 9 THREE MILE ISLAND: UNIT 1 COMPONENT : SG

'A' DUTAGE : 7R INDICATIONS IN STATISTICAL EVALUATION OF DEGRADED TUBES Row Tube Out-Exam Exam Indication Ind

/.

Ind age Tech Reason Location Deg T.W.

Volt Notes 126 94 6R 540-HGSD ISI 015+ 36.0 10 33 2.41 7R 540-MIZ18 ISI 015+ 36.2 11 36 3.11 126 97 7R 540-MIZ18 ISI 015+ 26.7 9

30 1.47 6R 540-HGSD ISI 015+ 26.8 7

23 1.10 127 94 6R 540-HGSD ISI UTS+

3.6 10 33 1.80 7R 540-MIZ18 ISI UTS+

3.6 11 36 1.90 129 1

6R 540-HGSD ISI 015+ 40.6 11 36 1.30 7R 540-MIZ18 ISI 015+ 40.6 11 36 1.35 7R 540-MIZ18 ISI 015+ 43.7 8

26 1.60 6R 540-HGSD ISI 015+ 43.8 8

26 1.21 7R 540-MIZ18 ISI 015+ 44.7 11 36 1.58 6R 540-HGSD ISI 015+ 44.7 11 36 1.35 130 41 7R 540-MIZ18 ISI 015+ 27.8 9

30 1.85 6R 540-HGSD ISI 015+ 27.8 7

23 1.22 134 1

6R 540-HGSD S/N 004+

2. 3 7

23 1.37 7R 540-MIZ18 ISI 004+

2.4 9

30 1.35 134 3

6R 540-HGSD ISI 014+ 32.1 11 36 1.42 7R 340-MIZ18 ISI 014+ 32.1 17 56 1.37 135 2

6R 540-HGSD ISI 015+ 11.7 7

23 1.01 7R 540-MIZ18 ISI 015+ 11.7 9

30 1.12 6R 540-HGSD ISI 015+ 35.8 6

20 1.29 7R 540-MIZ18 ISI 015+ 35.9 7

23 1.49 135 5

7R 540-MIZ18 ISI 014+ 27.5 8

26 1.40 6R 540-HGSD ISI 014+ 27.5 6

20 1.18 136 2

7R 540-MIZ18 ISI 014+

9.3 10 33 1.12 6R 540-HGSD ISI 014+

9.3 6

20 1.03 136 4

6R 540-HGSD ISI 015+ 11.0 8

26 1.12 MORE =>

I 1

TDR 935 REV. O APPENDIX II

)

Page 8 OF 9 l

THREE MILE ISLAND: UNIT 1 l

COMPONENT : SG

'A' OUTAGE : 7R INDICATIONS IN STATISTICAL EVALUATION OF DEGRADED TUBES Row Tube Out-Exam Exam Indication Ind

'/.

Ind age Tech Reason Location Deg T.W.

Volt Notes 7R 540-MIZ18 ISI 015+ 11.0 13 43 1.50 136 5

6R 540-HGSD ISI 015+ 39.2 8

26 1.52 7R 540-MIZ18 ISI 015+ 39.3 9

30 1.54 136 6

7R 540-MIZ18 ISI 015+ 35.9 11 36 1.56 6R 540-HGSD ISI 015+ 36.2 11 36 1.37 136 69 7R 540-MIZ18 ISI 015+ 33.4 10 33 1.23 6R 540-HGSD ISI 015+ 33.4 10 33 0.95 138 65 6R 540-HGSD ISI UTS+

6.0 9

30 1.86 7R 540-MIZ18 ISI UTS+

6.1 11 36 2.28 139 71 6R 540-HGSD ISI 013+ 25.8 9

30 1.53 7R 540-MIZ18 ISI 013+ 26.0 11 36 2.14 140 67 7R 540-MIZ18 ISI UTS+

3.4 10 33 1.32 6R 540-HGSD ISI UTS+

3.4 8

26 1.10 146 1

6R 540-HGSD ISI 004+ 35.7 9

30 1.29 7R 540-MIZ18 ISI 004+ 35.8 11 36 1.81 146 43 6R 540-HGSD S/i 015+ 33.9 8

26 1.13 7R 540-MIZ18 ISI 015+ 34.0 10 33 1.01 7R 540-MIZ18 ISI 015+ 35.2 11 36 1.07 6R 540-HGSD S/N 015+ 35.3 9

30 1.15 147 2

6R 540-HGSD ISI 012+ 10.4 9

30 0.93 7R 540-MIZ18 ISI 012+ 10.5 11 36 1.17 151 12 6R 540-HGSD ISI 012+ 35.3 11 36 1.23 l

7R 540-MIZ18 ISI 012+ 35.4 13 43 1.58 Total Tubes :

83 Total Indications :

105

____-________-_____________-_____a

{

l TDR 935 D

REV. O L

APPENDIX II Page 9 OF 9 THREE MILE ISLAND: UNIT 1 COMPONENT : SG

'B' OUTAGE : 7R INDICATIONS IN STATISTICAL i

EVALUATION OF DEGRADED TUBES Row Tube Out-Exam Exam Indication Ind Ind age Tech Reason Location Deg T.W.

Volt

~ Notes 1

11 cR 540-HGSD BX1ACC UTS+

2.7 7

23 1.23

'7R 540-MIZ18 ISI UTS+

2.9 8

26 1.47 9

22

.7R 540-MIZ18 ISI 015+ 45.0 8

28 1.36 6R 540-HGSD TROOB 015+ 45.0 7

23 1.24 30 13 6R 540-HGSD ISI 015+ 45.2 10 33 2.05 7R 540-MIZ18 ISI 015+ 45.2 10 36 2.27 30 71 6R 540-HGSD SECSAM 015+ 32.4 8

26 1.18 7R 540-MIZ18 ISI 015+ 32.6 8

26 1.40 34 71 7R 540-MIZ18 ISI UTS+

3.7 12 40 2.51 6R 540-HGSD SECSAM UTS+

4.3 11 36-2.01 60 83 6R 540-HGSD SECSAM 015+ 39.1 11 36 1.05 7R 540-MIZ18 ISI 015+ 39.3 10 33 1.28 105 8

7R 540-MI218 ISI UTS+

o.5 6

20 1.55 6R 540-HGSD ISI UTS+

o.6 9

30 1.32 109 11 eR 540-HGSD ISI 015+ 44.6 7

23 1.09 7R 540-MIZ18 ISI 015+ 44.6 8

2e 1.17 7R 540-MIZ18 ISI UTS+

5.v 8

26 1.37 6R 540-HGSD ISI UTS+

5.3 8

2e 1.16 109 112 6R 540-HGSD ISI 004+

v.v 10 33 1.86 7R 540-MIZ18 ISI 004+

0.0 e

20 1.97 122 44 7R 540-MIZ18 ISI UTS*

2.5 6

20 1.74 6R 540-HGSD TRDSAM UTS-7 23 2.01

-124 36 6R 540-HGSD RANSAM C15+ 45.0 7

23 1.27 7R 540-MIZ18 ISI 015+

-2.1 8

26 1.32 136 40 6R 540-HGSD ISI Olt+

-0.4 8

26 1.37 7R 540-MIZ18 ISI 015+ 40.5 e

20 1.70 Total Tubes :

12 Total Indications :

13

l 4

Appendix III Tubes Plugged During outage 7R 1

l

________-_w

TDR 935 REV. O APPENDIX III Page 1 OF.3 THREE MILE ISLAND: UNIT 1 COMPONENT : SG

'A' OUTAGE : 7R INDICATIONS GE 20% T.W.

IN-TUBES PLUGGED'DURING OUTAGE 7R Row Tube Exam Exam Exam OutaQe. Indication Ind Ind

. Circ.Ind Per Reason Tech Reel Location Deg T.W.

Volt. Ext Des Ext.

43 1 'CONFIR'8X1-ABS O26 7R 004 + 27.3 21 0.42.

1 OO Z.

ISI.

540-MIZ18 005 7R 004 + 27.3 12 43 0.86 LTE 78 31 ISI 540-MIZ18 006 7R UTS +

4.5 24

-80 1.32 LTI CONFIR BX1-ABS 026 7R UTS +

4.6 10 0.34.

2 001 84 1

CONFIR 8X1-ABS r?2 7R UTS +

0.1

2 0.31 1

L rE:

LANEWE 540-MIZ18 039 7R UTS +

0.1 19 0

4.17 DTS LTE' 91'126 CONFIR OX1-ABS O26 7R 009 + 19.9 5

0.52 1

007 RANSAM'540-MTZ18 011 7R

'009 + 19.9 13 43 1.14 LTE CONFIR 8X1-ABS O26 7R 014 +

0.3 354.

O.26 1

007 RANSAM 540-MIZ18 011 7R 014 +

0.3

'7 23 1.36 LTE 122 31.CONFIR 8X1-ABS 031 7R UTS +

1.8 15 0.30 1

Ol*

S/N 540-MIZ18 013 7R UTS +

1.8 17 56 1.23 LTE 125 1

CONFIR BX1-ABS O26 7R 014 +

0.5 12 0.75 2

01Z ISI 540-MIZ18 007 7R 015 + 13.8 8

27 1.92 LTE CONFIR OX1-ABS' 026 7R 015'+ 13.9 6

0.42 01:

ISI 540-MIZ18 007 7R 015 + 14.7' 7

23 2.65 LTE CONFIR OX1-ABS O26 7R 015 + 14.9 11 0.37 2

01:

ISI S40-MIZ18 007 7R 015 + 22.8 7

23 1.09 L TE; CONFIR 8X1-ABS O26 7R 015 + 22.9 0

0.32 2.

01:

ISI 540-MIZ18 007 7R 015 + 28.0 6

20 1.34

.LTE CONFIR 8X1-ABS O26 7R 015 + 28.3 356 0.39 2

01:

ISI 540-MIZ18 007 7R 015 + 28.7 6

20 2.83 LTE CONFIR OX1-ABS O26 7R-015 + 30.1 2

0.89 2

.1.

ISI 540-M1218 007 7R 015 + 30.1 12 40 4.41 LT.

125 57 CONFIR BX1-ABS O29 7R 015 + 22.7 4

0.31 1

.1.

ISI 540-MIZ18 008 7R 015 + 22.7 9

30 1.27 LTI ISI 540-MIZ18 008 7R 015 + 30.2 15 50 1.15 j'

CONFIR BX1-ABS O29 7R 015 +

0.3 11 v.46

. v. =.

s i

l I

T3A 7;d REV. O APPENDIX III Page 2 0F THREE MILE ISLAND: UNIT 1 COMPONENT : SG

'A' OUTAGE : 7R INDICATIONS GE 20%

T..,

IN TUBES PLUGGED DURING Oul-GE 7R riow..uce E4am

'd<am Exam Outage Indication.Inc

nd Ctec.

.m heason Tecn Reel mccation Eeg T.W.

volt Est

es E.

Z7 Z

CONFIR dxt-ABS-0:1 TR 013 + Z3.0 4

0.41 1

131 540-MIZ18 007 7R 013 + 23.0 13 4.;

1.7U L:

128 2

CONFIR 8X1-ABS 031 7R 014 +

13.5 195 0.41 1

e,6 4 RANSAM 540-MIZ18 013 7R 014 + 13.5 19-63 1.10 LTi.

129 1

CONFIR 8X1-ABS O26 7R 015 + 37.7 O

O.27 li 01 ISI 540-MIZ18 007 7R 015 + 37.7 11 36 1.03 LT1 CONFIR 8X1-ABS O26 7R 015 + 40.5 5

0.47 1

01 ISI

.540-MIZ18'OO7.

7R 015 + 40.6 11 36 1.35 LT ISI 540-MIZ18 007 7R-015 + 43.7 8

26_

1.60 LT CONFIR'BX1-ABS O26 7R 015 + 43.8 353 0.23

.1 0

CONFIR 8X1-ABS O26 7R 015 + 44.7 9

0.42 1

C ISI 540-MIZ18'OO7 7R 015 + 44.7 11 36 1.58 CONFIR 8X1-ABS O26 7R 015 + 46.1 3

0.31 1

ISI 540-MIZ18 007 7R' 015 + 46.2 14 46 1.02.

L 134 3

CONFIR 8X1-ABS O26 7R 014 + 32.1 178 0.40 1

U1 ISI 540-MIZ18 007 7R 014 + 32.1 17 56 1.37 LT.

136 4

ISI 540-MIZ18 007 7R 015 + 11.0 13 43 1.50 L Tt CONFIR 8X1-ABS O26 7R 015 + 11.2 4

0.43 1

01 151 12 CONFIR 8X1-ABS O29 7R 012 + 16.5 0

0.18 1

00 ISI 540-MIZ18 000 7R 012 + 16.5 9

30 1.44 L7 CONFIR OX1-ABS-029 7R 012 + 34.6 7

0.39 1

OC ISI 540-MIZ18 000 7R 012 + 34.6 15 50 1.30 L*

CONFIR 8X1-ABS O29 7R 012 + 35.4 14 0.49 1

00 ISI 540-MIZ18 008 7R 012 + 35.4 13 43 1.58 LT Total. Tubes :

13

TDR 935 REV. O APPENDIX'III Page

.3 OF.3 I

THREE MILE ISLAND: UNIT 1 f

c COMPONENT : SG

'B' OUTAGE : 7R INDICATIONS GE 20% T.W.

IN TUBES PLUGGED DURING OUTAGE 7R

_ Row Tube Exam Exam Exam Outage Indication Ind Inc Circ Inc Per Reason Tech Reel Location Deg T.W.

Volt Ext Des Ext

-29 3

CONFIR 8X1-ABS

.040 7R UTS +

0.1.178 0.89 1

.01:

SECSAM 540-MIZ18 025 7R UTS +

0.1 15 0

3.69

.DTS LTE CONFIR 8X1-ABS 040 7R UTS +

0.4 15 1.94.

2 v i!-

SECSAM 540-MIZ18.025 7R UTS +

0.5 20 66 3.36 m TE 34 7'1 CONFIR 8X1-ABS 018 7R UTS +

3.7 11 1.19 1

Oi!

ISI

.540-MIZ18 003 7R UTS +-

3.7-12 40 2.51

' L TE 58

.10 CONFIR 8X1-ABS O22 7R

'UTS +

0.0 17 1.69 3

' O li

'RANSAM 540-MIZ18 010 7R UTS +

0.0 26 86 3.82.

LTE 75 5

CONFIR 8X1-ABS 019 7R 015 +

0.0 97 2.50 1

01 LANEWE 540-MIZ18 014 7R 015 +

0.0 50 0

4.57 DSS LTi 75 6

CONFIR BX1-ABS 019 7R 015 +

0.0 95 3.66 1

01:

LANEWE 540-MIZ18 014 7R 015 +

0.0 92 0

2.09 DSS LTi 75 7

CONFIR 8X1-ABS 019 7R 015 +

0. 0 96 1.36 1

01:

LANEWE 540-MIZ18 014 7R 015 +

0.0 53 0

4.42

. DSS LTE

'75 8

CONFIR BX1-ABS 019 7R 015 +

0.0 103 0.78 1

Ol' LANEWE 540-MIZ18 014 7R 015 +

0.0 31 0

2.86 DSS Lil 96 5

CONFIR OX1-ABS 040 7R UTS +

6.5 16 1.64 2

6 l.

SECSAM 540-MIZ18 033 7R UTS +

6.5-13 43 3.53 LTi CONFIR BX1-ABS 040 7R UTS +

6.8 23 2.53 2

01:

SECSAM 540-MIZ18 033 7R UTS +

6.8 6

20 3.89 L Ti Total Tubes :

8 l

4

.]

4 Appendix IV Tubes With Indications > 20% Through Wall l

L____-__________-_______________-______-

TDR 935 I

REV. O APPENDIX IV PAGE 1 OF 20 THREE MILE ISLAND: UNIT 1 COMPONENT SG

'A' OUTAGE : 7R CONFIRMED INDICATIONS GE 20% T.W.

TUBES SORTED BY DATA SET Row Tube Data Exam Exam Indication Ind Ind Cire set Tech Reel Location Deg T.W.

Volt Ext Notes 34 1

8X1ACC 540-MIZ18 015 006+

7.3 6

20 1.0 8X1-A85-052 006+

7.3 172 0.4 1

540-MIZ18 015 006+ 15.7 7

23

1. 2-8X1-ABS 052 006+ 15.7 179 0.3 l '-

35 54 8X1ACC 540-MIZ18 015 UTS+- 4.4 6

20 1.5 BX1-ABS 052 UTS+

4.4 3

0.2 1

52 34 8X1ACC 540-MIZ18 015 14+ 31.4 11 36 1.2 8X1-ABS 052 014+ 31.6 359 0.4 1

63 126' 8X1ACC 540-MIZ18 018 015+ 22.6 6

20 1.3 8X1-ABS 052 015+ 22.9 5

0.4 1

94 113-BX1ACC 540-MIZ18 011 015+ 33.5 9

30 1.2 8X1-ABS O28 015+ 33.5 185 0.4 1

122 26 BX1ACC 540-MIZ18 013 015+ 45.5 8

26 1.5 8X1-ABS 031 015+ 45.; 353

0. 3 1

124 100 BX1ACC 540-MIZ18 012 012+ 30.9 7

23 0.8 BX1-ABS O29 012+ 30.9 7

0.2 1

125 97 8X1ACC 8X1-ABS O29 015+ 41.2 191 0.2 1

540-MIZ18 012 015+ 41.4 9

30 1.0 130 60 8X1ACC 540-MIZ18 012 015+ 33.6 8

26 1.0 OX1-ABS O29 015+ 33.6 357 0.2 1

139 67 8X1ACC 8X1-ABS O29 015+ 45.9 196 0.2 1-540-MIZ18 012 015+ 45.9 10 33 1.6 Tubes this Dataset:

10 Indications this Dataset:

11 MGFE I

TDR-935 REV. O APPENDIX IV PAGE 2 OF 20

{'

THREE MILE ISLAND: UNIT 1 COMPONENT : SG

'A' I-OUTAGE : 7R CONFIRMEO INDICATIONS GE 207. T.W.

TUBES SORTED BY DATA SET Row Tube Data Exam Exam Indication Ind 7.

Ind Cire Set Tech Reel Location Deg T.W.

Volt Ext Notes 8

43 ISI-5M OX1-ABS O25 015+ 23.8 9

0.5 1

540-MIZ18 005 015+ 23.8 9

30 1.1 15 77 ISI-5M 8X1-ABS O25 012+ 30.4 19 O.4 1

540-MIZ18 005 012+ 30.5 11 39 1.0 18 1

ISI-SM 540-MIZ18 001 004+

5.3 9

30 1.5 8X1-ABS 032 004+

5.4 188 0.3 1

18 3

ISI-5M 540-MIZ18 001 015+ 24.8 9

30 1.1 8X1-ABS 032 015+ 24.8 8

0.5 1

22 35 ISI-SM 540-MIZ18 001 015+ 33.7 10 33 2.0 8X1-ABS 032

'015+ 33.7 17 0.4 1

8X1-ABS 032 UTS+

3.8 0

0.3 1

540-MIZ18 001 UTS+

3.8 8

26 0.9-24 2

ISI-5M 540-MIZ18 002 UTS+

2.1 7

23 1.3 8X1-ABS 032 UTS+

2.2 356 0.3 2

36 106 ISI 5M 540-MIZ18 004 015+ 34.3 8

26 1.5 BX1-ABS O25 015+ 34.3 177 0.8 1

37 109 ISI-SM 540-MIZ18 003 015+ 38.9 9

30 1.2 BX1-ABS O25 015+'39.1 3

0.6 1

43 1

ISI-SM 8X1-ABS O26 004+ 27.3 21 0.4 1

540-MIZ18 005 004+ 27.3 12 43 0.9 51 2

ISI-SM 8X1-ABS 032 015+

2.9 352 0.4 1

540-MIZ18 006 015+

2.9 11 36 1.1 63

~96 ISI-5M 540-MIZ18 002 015+ 38.8 10 33 1.2 8X1-ABS O27 015+ 39.0 5

0.3 1

75 81 ISI-5M BX1-ABS O27 015+ 35.2 4

0.5 1

540-MIZ18 004 015+ 35.4 10 33 1.6 1

MORE =>

TDR 935 REV. O APPENDIX IV.

PAGE 3 OF 20-THREE MILE ISLAND: UNIT 1 COMPONENT : SG

'A' OUTAGE : 7R CONFIRMED INDICATIONS GE 20% T.W.

TUBES SORTED BY DATA SET Row Tube Data Exam Exam Indication Ind Ind Circ Set Tech Reel Location Deg T.W.

Volt Ext Notes 78 31 IS!-SM 540-MIZ18 006 UTS+

4.5 24 80 1.3 8X1-ABS O26 UTS+

4. 6 10 0.3' 2

90 80 ISI-5M 540-MIZ18 010 015+ 32.3 7

23 1.5 8X1-ABS O27 015+ 32.4 178 0.6 1

94 117 ISI-5M BX1-ABS O28 015+ 44.1 O

O.3 1

540-MIZ18 010 015+ 44.2 7

23 1.9 104 75 ISI-5M 540-MIZ18 009 015+ 29.4 6

20 0.9 OX1-ABS O28 015+ 29.7 173 1.0 1

540-MIZ18 009 015+ 39.4 8

26 1.4 8X1-ABS O28 015+ 39.4 182-0.3 1

107 2

ISI-5M 8X1-ABS 031 015+ 33.4 6

0.3 1

540-MIZ18 007 015+ 33.4 6

20 2.0 125 87 ISI-5M 540-MIZ18 000 015+ 22.7 9

30-1.3

-8X1-ABS O29 015+ 22.7 4

0.3 1

540-MIZ18 008 015+ 30.2 15 50 1.1 8X1-ABS O29 015+ 30.3 11 0.5 1

127 2

ISI-SM 540-MIZ18 007 013+ 23.0 13 43 1.7 8X1-ABS 031 013+ 23.0 4

0.4 1

131 82 ISI-5M SX1-ABS O29 015+ 15.8 0

0.4 1

540-MIZ18 008 015+ 15.8 8

26 1.6 540-MIZ18 008 015+ 38.0 9

30 2.0 OX1-ABS O29 015+ 38.1 6

0.4 1

540-MIZ18 008 015+ 43.1 8

26 1.9 OX1-ABS O29 015+ 43.1 194 0.3 1

136 69 ISI-5M 54G-MIZ18 008 015+ 11.6 9

30 1.3 DX1-ABS O29 015+ 11.6 358 0.4 1

BX1-ABS O29 015+ 13.1 2

0.2 1

540-MIZ18 008 015+ 13.1 6

20 1.2 540-MIZ18 008 015+ 33.4 10 33 1.2 MORE =>

l l

r-L.

TDR 935 REV. O APPENDIX IV PAGE 4 OF 20 THREE MILE ISLAND: UNIT 1 COMPONENT : SG

'A' OUTAGE : 7R CONFIRMED INDICATIONS GE 207. T.W.

-TUBES SORTED BY DATA SET t

Row Tube Data Exam

' Exam Indication Ind

/.

Ind Cire Set Tech Reel Location Deg T.W.

Volt Ext Notes BX1-ABS O29 015+ 33.4 350 0.2 1

540-MIZ18 008 015+ 37.6 7

23 2.6 8X1-ABS O29 015+ 37.7 191 0.2 1

150 0

ISI-SM 540-MIZ18 007 015+

3.5 8

26 1.1 8X1-ABS 033 015+

3.5 0

0.3 1

BX1-ABS 033 015+ 18.5 352 0.2 1

540-MIZ18 007 015+ 18.5

'6 20 1.1 540-MIZ18 007 015+ 42.2 7

23 1.0 8X1-ABS 033 015+ 42.3 355 0.5 1

Tubes-this Dataset:

22 Indications this Dataset:

32 1-4 ISI-6R 540-MIZ18 001 013+

6.6 9

30 2.4 BX1-ABS 032 013+

6.6 12 0.4 1

540-MIZ18 001 013+ 12.1 7

23 1.3 BX1-ABS 032 013+ 12.3 0

0.3 1

540-MIZ18 001 015+ 35.9 6

20 2.7 8X1-ABS 032 015+ 36.0 0

0.6 1

2 6

ISI-6R 8X1-ABS 032 015+ 28.7 13 0.3 1

540-MIZ18 001 015+ 28.8 9

30 1.8 OX1-ABS 032 015+ 35.6 348 0.2 1

540-MIZ18 001 015+ 35.7 6

20 1.6 8X1-ABS 032 015+ 40.4

-3 0.4 1

540-MIZ18 001 015+ 40.4 8

26 1.7 2

25 ISI-6R OX1-ABS O25 013+ 10.3 160 0.8 1

540-MIZ18 005 013+ 10.3 6

21 1.2 3

25 ISI-6R BX1-ABS O25 015+ 41.7 13 0.3 1

540-MIZ18 005 015+ 41.7 9

32 1.0 SX1-ABS O25 015+ 42.8 5

0.3 1

540-MIZ18 005 015+ 42.8 8

28 1.4 540-MIZ18 005 015+ 43.1 10 36 1.8 8X1-ABS O25 015+ 43.2 8

0.6 1

MORE => j

TDR 935 REv.

O-APPENDIX-IV PAGE 5 OF 20 THREE MILE ISLAND: UNIT 1 COMPONENT : SG

'A' OUTAGE : 7R CONFIRMED INDICATIONS GE 20%'T.W.

TUBES SORTED BY DATA SET Row Tube Data Exam Exam Indication Inc Ind Circ Set Tech Reel Loca ti on Deg T. W.

Volt Ext Notes 4

28 ISI-6R 540-MIZ18 005

.015+ 30.8 7

25 2.1 OX1-ABS O25 015+ 30.8 9

1.0 1

4 29 ISI-6R 540-MIZ18 005 015+ 27.3 10 36 1.7 BX1-ABS 025 015+ 27.3 1

0.6 1

540-MIZ18 005 015+ 35.9 7

25 0.8 OX1-ABS O25 015+ 35.9 11 0.3 1

5 3

ISI-6R 540-MIZ18 001 015+ 44.2 9

30

1. 7 -

8X1-ABS 032 015+ 44.2 2

0.3 1

8X1-ABS 032 015+ 44.7 2

0.4 1

540-MIZ18 001 015+ 44.7 10 33 3.2 6

43 ISI-6R 540-MIZ18 005 UTS+

3.5 9

32 2.1 OX1-ABS O25 UTS+

3.5 202 1.7 2

6 47 ISI-6R 540-MIZ18 005 015+ 19.9 7

25 1.2 8X1-ABS 053 015+ 19.9 173 0.3 1

540-MIZ18 005 015+ 33.9 7

25 1.5 OX1-ABS 053 015+ 34.1 2

0.5 1

6 48 ISI-6R OX1-ABS O25 UTS+

0.4 13 0.9 1

s 540-MIZ18 005 UTS+

0.4 11 36 2.0 i

8 2

ISI-6R 540-MIZ18 001 012+ 25.1 8

26 2.5 8X1-ABS 032 012+ 25.1 182 0.7 1

I 8X1-ABS 032 012+ 33.4 5

0.4 1

540-MIZ18 001 012+ 33.4 10 33 2.3 11 4

ISI-6R 540-MIZ18 001 015+ 21.1 8

26 1.2 8X1-ABS 032 015+ 21.1 175 0.4 1

13 1

ISI-6R 8X1-ABS 032 013+ 22.2 2

0.5 1

540-MIZ18 001 013+ 22.2 8

26 2.3 BX1-ABS 032 013* 23.2 8

0.5 2

i MORE =>

k L.

TDR 935' REV. O APPENDIX IV PAGE 6 OF 20 THREE MILE ISLAND: UNIT 1 COMPONENT :.SG

'A' OUTAGE : 7R CONFIRMED INDICATIONS GE 20%

T. W.

TUBES SORTED BY DATA SET

. Row Tube Data Exam Exam Indication Ind Ind Cire Set-Tech Reel.

Location' Deg T.W.

' Volt' Ext Notes

.540-MIZ18 001 013+ 23.3 6

20 1.5 8X1-ABS-032 013+ 30.3 22 0.2 1

540-MIZ18 001 013+ 30.3 6-20 1.0 18 84 ISI-6R 540-MIZ18 005 015+ 32.6 8

26 1.1 8X1-ABS O25 015+ 32.6 9

0.7-1 540-MIZ18 005 015+ 33.0 8

26 1.4 SX1-ABS 025 015+ 33.2 3

0.8 1

540-MIZ18 005 015+-33.8 6

20 1.0 8X1-ABS O25 015+ 34.0 2

0.5 1

540-MIZ18 005 Q15+ 34.4 9

32

1. '2 BX1-ABS O25 015+ 34.6 5

0.8 1

540-MIZ18 005 015+ 35.6 6

21 1.1 8X1-ABS O25 015+ 35.9 179 0.5 1

BX1-ABS O25 015+ 38.'1 1-1.0 l'

540-MIZ18 005 015+ 38.1 8

26 1.5 540-MIZ18 005 015+ 40.8 9

32 0.9 I

BX1-ABS O25 015+ 41.0 0

0.8 1

20 56 ISI-6R 8X1-ABS O25 015+ 33.5 0

0.3 1

{

540-MIZ18 004.

015+ 33.5 11 36 0.7

-)

20 85 ISI-6R 540-MIZ18 004 010+ 17.4 8

26 1.6 8XI-ABS O25 010+ 17.4 5

1.2 1

l BX1-ABS O25 010+ 18.3 7

1.7 1

i 540-MIZ18 004 010+ 18.3 11 36 1.4 540-MIZ18 004 010+ 21.1 9

30 1.1 l

SX1-ABS O25 010+ 21.2 11 0.4 1

BX1-ABS O25 014+ 31.4 170 0.3 1

540-MIZ18 004 014+ 31.4 6

20 1.1 25 21 ISI-6R 540-MIZ18 002 015+ 37.6 8

26 1.2 BX1-ABS 032 015+ 37.6 351 0.3 1

27 96 ISI-6R GX1-ABS O25 015+ 37.2 10 0.4 1

540-MIZ18 004 015+ 37.5 6

20 1.3 l

r_--__

TDR c 5 REV..O APPENDIt is PAGE 7 CF THREE MILE ISLAND: UNIT 1 COMPONEN1~s SG

'A'

. OurAGE : 7R CONFIRMED INDICAllONS GE 20% 7.W.

TUBES 50RTED B<'DA74 EEi Aow Tuce usta daam Exam incicatten 1a ina

. t e:

det Tecn Fee.

uccation Dec r. W.

soit Est Ne es is

/i abi =H.04v-M1218 ova vic+ 14.5 8

o ex1-AB5 v25 015+ 14.7 e

.5 1

e' ISI oH $4v-M121e 004 vib+ 45.1 4

1.1 8xi-ABS O25 vl5+ 45.1 8

0.5 1-24 IS1-6R 8X1-ABS 032 UTS+

1.8 351 0.4 1

540-MIZ18 005 UTS+-

1.8 10 36 1.4 540-MIZ18'OO5 UTS+

3.9 6

20 1.2 BX1-ABS

'032 UTS+

3.9 355 0.5 1

36 96 ISI-6R 8X1-ABS O25 015+ 29.7 18 0.3 1

540-MIZ18 004 015+ 29.9 11 36 0.9.

39 110 ISI-6R 540-MIZ18 003 015+ 39.6 9

30 1.2 8X1-ABS O25 015+ 39.7 5

1.0

'1-41 94 ISI-6R 540-MIZ18 004 015+ 16.1 8

26 1.2 8X1-ABS O26 015+ 16.1 180 0.6 1

1 43 82 ISI-6R 8X1-ABS O26 007+ 37.6 173 0.2 1

I 540-MIZ18 003 007+ 37.6 11 36 1.1 i

47 84 ISI-6R 540-MIZ18 003 015+ 39.7 8

26 1.2 8X1-ABS O26 015+ 39.7 17 0.2 1

l 48 118 ISI-6R.8X1-ABS O26 014+ 29.5 203 0.1 1

'I 540-MIZ18 003 014+ 29.5 9

30 1.0 j

49-

.73 ISI-6R 540-MIZ18 003 UTS+

5.0 9

30 2.1 i

BX1-ABS O26 UTS+

5.0 180 0.6 1

i I

57 63 -ISI-6R SX1-ABS 032 015+ 36.6 5

0.5 1

)

540-MIZ18 005 015+ 36.9 7

25

2. 3 l

j 60 125 ISI-6R 540-MIZ18 002 015+ 25.5 6

20-1.2 BX1-ABS O27 015+ 25.5 8

0.4 1

MORE =>

l

_ _-- - = - - - - -

l TDR 935 REV. O APPENDIX IV j

PAGE B OF 20 THREE MILE ISLAND: UNIT 1 COMPONENT SG

'A' OUTAGE : 7R CONFIRMED INDICATIONS GE 20%

T. W.

TUBES SORTED BY DATA SET Row Tube Data Exam Exam Indication Ind Ind Cire Set Tech Reel Location Deg T.W.

Volt Ext Notes 540-MIZ18 002 015+ 26.2 7

23 1.8 OX1-ABS O27 015+ 26.2 1

0.6 1

64 129 IS1-6R 540-MIZ18 002 015+ 46.0 11 36 1.7 8X1-ABS O27 015+ 46.0 6

0.3 1

66 1

ISI-6R 8X1-ABS 032 004+ 27.7 4

0.3 2

540-MIZ18 006 004+ 27.7 8

26 2.6 66 127 ISI-6R BX1-ABS O27 015+ 44.9 9

0.3 2

540-MIZ18 002 015+ 44.9 8

26 1.4 72 86 ISI-6R 540-MIZ18 004 UTS+

3.8 11 36 1.7 8X1-ABS O27 UTS+

3.8 8

0.4 1

74 28 ISI-6R 8X1-ABS 032 UTS+

5.7 15 0.2 2

540-MIZ18 006 UTS+

5.7 10 33 1.9 74 30 ISI-6R 8X1-ABS 053 UTS+

5.7 2

0.5 1

540-MIZ18 054 UTS+

5.8 10 33 1.7 75 123 ISI-6R 540-MIZ18 002 015+ 24.2 7

23 2.4 BX1-ABS O27 015+ 24.2 19 0.5 1

81 92 ISI-6R 8X1-ABS O27 UTS+

0.5 6

0.2 1

540-MIZ18 010 UTS+

0.6 8

26 1.1 92 32 ISI-6R 540-MIZ18 006 UTS+

6.5 9

30

2. 2 8X1-ABS 030 UTS+

6.5 2

0.9 1

83 17 ISI-6R 540-MIZ18 006 015+ 35.3 8

26 1.5 8X1-A85 030 015+ 35.3 5

0.4 1

95 57 ISI-6R 8X1-ABS 030 UTS+

3.7 5

0.5 1

540-MIZ18 006 UTS+

3.7 9

30 1.4 MORE = >

TDR 935-REV. O APPENDIX IV PAGE 9 OF 20 THREE MILE ISLAND: UNIT 1 COMPONENT :.SG

'A' OUTAGE : 7R CONFIRMED INDICATIONS GE 20% T.W.

TUBES SORTED BY DATA SET Row Tube Data Exam Exam Indication Ind Ind Cire Set Tech Reel Location Deg T. W.

Volt Ext Notes 87 1

ISI-6R BX1-ABS 030 012+

7.0 6

1.0 2

540-MIZ18 006 012+

7.1 6

20 4.0 90 128 ISI-6R 540-MIZ18 010 014+ 15.2 10 33 1.2 BX1-ABS O28 014+ 15.6 6

0.2 1

540-MIZ18 010 015 0.2 7

23 3.0 OX1-ABS O28 015 0.2 9

0.7 1

BX1-ABS O28 015+

1.9 178 0.4 1

540-MIZ18 010 015+

H2. 0 6

20 1.4 95 111 ISI-6R 540-MIZ18 010 015+ 40.3 7

23 1.5 8X1-ABS O28 015+ 40.4 183 0.3 1

95 123 ISI-6R BX1-ABS O28 UTS+

1.9 190 0.7 1

540-MIZ18 009 UTS+

1.9 10 33 4.1 96 32 ISI-6R BX1-ABS 030 015+ 37.5 3

0.4 1

540-MIZ18 006 015+ 37.5 10 33 1.8 540-MIZ18 006 015+ 43.2 9

30 1.2 8X1-ABS 030 015+ 43.2 O

O.3 1

100 122 ISI-6R 540-MIZ18 009 UTS+

4.8 10 33 2.1 BX1-ABS O28 UTS+

4.9 194 0.4 2

101 51 ISI-oR 8X1-ABS 030 UTS+

4.0 357 0.3 1

540-MIZ18 006 UTS+

4.0 10 33 1.9 101 61 ISI-6R 540-MIZ18 007 015+ 29.4 10 33 2.2 8X1-ABS 030 015+ 29.4 189 0.4 1

103 121 iSI-6R 540-MIZ18 009 014+ 12.2 11 36 1.3 BX1-ABS O28 014+ 12.3 351 0.3 1

540-MIZ18 009 014+ 15.6 6

20 1.3 8X1-ABS O28 014+ 15.7 358 0.3 1

540-MIZ18 009 015+ 43.8 11 36 2.6 BX1-ABS O28 015+ 43.9 198 0.2 1

104 121 ISI-6R 540-MIZ18 009 014+

3.0 8

26 1.8 MCRE = >

TDR 935 REV. O APPENDIX IV PAGE 10 OF 20 THREE MILE ISLAND UNIT 1 COMPONENT : SG

'A' OUTAGE : 7R CONFIRMED INDICATIONS GE 20% T.W.

TUBES SORTED BY DATA SET Row Tuce Data Exam Exam Indication Inc Ind Carc Set Tech Reel Location Deg T.W.

Volt Ext Notes BX1-ABS O28 014+

3.0 178 0.2 1

BX1-ABS O28 015+ 45.6 177 0.5 1

540-MIZ18 009 015+ 45.6 9

30 1.7 107 29 ISI-6R 540-MIZ18 007 015+ 37.6 7

23 1.3 8x1-ABS 053 015+ 37.7 358 0.4 1

107 120 ISI-6R 540-MIZ18 009 UTS+

3.3 6

20 1.7 BX1-ABS O28 UTS+

3.3 190 0.4 2

8X1-ABS O28 UTS+

3.7 357 0.2 1

540-MIZ18 009 UTS+

3.7 7

23 1.6 540-MIZ18 009 UTS+

4.6 6

20 1.9 BX1-ABS O28 UTS+

4.6 168 0.2 1

109 108 ISI-6R 540-MIZ18 009 UTS+

3.5 8

26 3.7 BXI-ABS O28 UTS+

3.7 349 0.5 2

110 52 ISI-6R 540-MIZ18 007 UTS+

1.1 11 36 1.8 BX1-ABS 030 UTS+

1.1 7

0.4 1

540-MIZ18 007 UTS+

2.7 11 36 1.3 BX1-ABS 030 UTS+

2.7 7

0.4 1

112 116 ISI-6R BX1-ABS O28 012+ 35.0 350 0.2 1

540-MIZ18 009 012+ 35.0 0

26 1.1 113 26 ISI-6R 540-MIZ18 007 015+ 25.6 11-36 1.6 BX1-ABS 031 015+ Z5.7 4

0.4 1

115 109 ISI-6R 540-MIZ18 009

'UTS+

4.8 9

30 3.5 8X1-ABS O29 UTS+

4.8 9

0.8 1

,116 109 ISI-6R 540-MIZ18 009 015-3e.5 8

26 1.6 BX1-ABS O29 015-o.5 4

0. 3 1

l 119 77 ISI-6R 8X1-ABS O29 015+ 29.4 0

0.7 1

540-MIZ18 009 015+ 27.5 10 33 1.9 MORE =>

1 I

I

TDR 935 REV. O APPENDIX IV PAGE 11 OF 20 THREE MILE ISLAND UNIT 1 COMPONENT : SG

'A' OUTAGE : 7R CONFIRMED INDICATIONS GE 207. T.W.

TUBES SORTED BY DATA SET Row Tube Data Exam Exam Indication Ind 7.

Ind Circ Set Tech Reel Location Deg T.W.

Volt Ext Notes 120 67 ISI-6R BX1-ABS O29 015+ 36.1 9

0.6 1

540-MIZ18 009 015+ 36.1 11 36 1.5 121 104 ISI-6R 540-MIZ18 009 015+

4.1 10 33 1.5 8X1-ABS 053 015+

4.1 O

O.3 1

122 30 ISI-6R BX1-ABS 031 UTS+

0.0 10 0.5 1

540-MIZ18 007 UTS+

0.8 8

26 1.5 123 96 ISI-6R 540-MIZ18 008 015+ 41.8 8

26 2.4 8X1-ABS O29 015+ 41.8 189 0.5 2

540-MIZ18 008 015+ 44.9 6

20 2.3 BX1-ABS O2.9 015+ 44.9 5

0.6 2

124 1

ISI-6R BX1-ABS 031 012+ 23.4 359 0.5 1

540-MIZ18 007 012+ 23.4 6

20 1.9 125 2

ISI-6R 540-MIZ18 007 015+ 13.8 8

27 1.9 BX1-ABS O26 015+ 13.9 6

0.4 2

540-MIZ18 007 015+ 14.7 7

23 2.7 8X1-ABS O26 015+ 14.9 11 0.4 2

540-MIZ18 007 015+ 22.8 7

23 1.1 BX1-ABS O26 015+ 22.9 0

0.3 2

540-MIZ18 007 015+ 28.0 6

20 1.3 BX1-ABS O26 01S+ 28.3 356 0.4 2

BX1-ABS O26 015+ 28.6 173 0.4 1

540-MIZ18 007 015+ 28.7 6

20 2.8 BX1-ABS O26 015+ 30.1 2

0.9 2

540-MIZ18 007 015+ 30.1 12 40 4.4 126 34 ISI-6R 540-MIZ18 007 015+ 36.7 10 33 1.1 BX1-ABS 031 015+ 36.7 185 0.2 1

126 94 ISI-6R BX1-ABS O29 015+ 36.0 359 0.4 1

540-MIZ18 008 015+ 36.2 11 36 3.1 MU-i

i l

TDR 935 l

REV. O APPENDIX IV PAGE 12 OF 20 THREE MILE ISLAND: UNIT 1 COMPONENT : SG

'A' OUTAGE : 7R l

CONFIRMED INDICATIONS GE 207. T.W.

TUBES SORTED BY DATA SET Row Tube Data Exam Exam Indication Ind

/.

Ind Circ Set Tech Reel Location Deg T. W.

Volt Ext Notes 126 97 ISI-6R 540-MIZ18 008 015+ 26.7 9

30 1.5 8X1-ABS O29 015+ 26.7 7

0.4 1

127 94 ISI-6R 540-MIZ18 008 UTS+

3. 6 11 36 1.9 8X1-ABS O29 UTS+

3.7 359 0.3 1

129 1

ISI-6R 540-MIZ18 007 015+ 37.7 11 36 1.0 OX1-ABS O26 015+ 37.7 O

O.3 1

OX1-ABS O26 015+ 40.5 5

0.5 1

540-MIZ18 007 015+ 40.6 11 36 1.4 540-MIZ18 007 015+ 43.7 8

26 1.6 BX1-ABS O26 015+ 43.8 353 0.2 i

BXI-ABS O26 015+ 44.7 9

0.4 1

540-MIZ18 007 015+ 44.7 11 36 1.6 BX1-ABS O26 015+ 46.1 3

0.3 1

540-MIZ18 007 015+ 46.2 14 46 1.0 130 41 ISI-6R 540-MIZ18 007 015+ 27.8 9

30 1.9 BX1-ABS 033 015+ 27.9 9

0.3 2

134 1

ISI eR BX1-ABS 033 004+

2.3 185 0.3 1

540-MIZ18 007 004+

2.4 9

30 1.4 8X1-ABS 033 004+

3.2 O

O.2 1

540-MIZ18 007 004+

3.3 8

26 1.1 134 3

ISI-6R OX1-ABS O26 014+ 32.1 178 0.4 1

540-MIZ18 007 014+ 32.1 17 56 1.4 135 2

ISI-eR 540-MIZ18 007 014 0.2 6

20 1.0 SX1-ABS 033 014+

0.1 178 0.3 1

540-MIZ18 007 015+ 11.7 9

30 1.1 OX1-ABS 033 015+ 11.7 0

0.5 1

BX1-ABS 033 015+ 21.5 357 0.3 1

540-MIZ18 007 015+ 21.6 8

26 1.2 540-MIZ18 007 015+ 35.9 7

23 1.5 BX1-ABS 033 015+ 35.9 7

0.6 1

MDRE =>

TDR 935 REV. O APPENDIX'IV l

L PAGE 13-OF 20 THREE MILE ISLAND: UNIT 1 COMPONENT : SG

'A' i

i OUTAGE : 7R j

CONFIRMED INDICATIONS GE 20% T.W.

TUBES SORTED BY DATA SET Row Tube Data Exam Exam Indication Ind Ind.

Circ Set Tech Reel Location Deg T.W.

Volt Ext Notes 135 5

ISI-6R BX1-ABS 033 014+ 27.5 4

0.2 1

540-MIZ18 007 014+ 27.5 8

26 1.4 136 2

ISI-6R BX1-ABS 033 014+

9.1 8

0.2 1

540-MIZ18 007 014+

9.3 10 33 1.1 136 4

ISI-6R 540-MIZ18 007 015+ 11.0 13 43 1.5 BX1-ABS O26 015+ 11.2 4

0.4 1

136 5

ISI-6R BX1-ABS 033 015+ 39.2 10 0.4 1

540-MIZ18 007 015+ 39.3 9

30 1.5 136 6

ISI-6R 540-MIZ18 007 015+ 35.9 11 36 1.6 8X1-ABS 033 015+ 36.3 182 0.5 1

138 65 ISI-6R 540-MIZ18 008 UTS+

6.1 11 36 2.3 OX1-ABS O29 UTS+

6.1 3

0.3 1

139 71 ISI-6R 540-MIZ18 008 013+ 26.0 11 36 2.1 BX1-ABS 053 013+ 26.1 10 0.1 1

540-MIZ18 008 015+ 41.4 6

20 1.3 8X1-ABS 053 015+ 41.7 171 0.3 1

140 67 ISI-6R 540-MIZ18 008 UTS+

3.4 10 33 1.3 SX1-ABS O29 UTS+

3.4 9

0.2 1

146 1

ISI-6R 540-MIZ18 007 004+ 35.8 11 36 1.8 BX1-ABS 033 004+ 35.9 179 0.3 1

146 43 ISI-6R OX1-ABS 030 015+ 34.0 5

0.3 1

540-MIZ18 008 015+ 34.0 10 33 1.0 540-MIZ18 008 015+ 35.2 11 36 1.1 OX1-ABS 030 015+ 35.2 7

0.4 1

BX1-ABS 030 015+ 36.0 354 0.3 1

540-MIZ18 008 015+ 36.2 6

20 1.1 147 2

ISI-6R 540-MIZ18 007 012+ 10.5 11 36 1.2 BX1-ABS 033 012+ 10.5 357 0.6 1

MORE

=e i

"2 TDR 935 REV. O APPENDIX IV PAGE 14'OF 20 THREE MILE ISLAND: UNIT 1-COMPONENT : SG

'A' OUTAGE : 7R CONFIRMED INDICATIONS GE:20% T.W.

TUBES SORTED BY DATA SET Row Tube Data Exam Exam Indication Ind Ind Circ Set Tech Reel Location Deg T.W.

Volt Ext Notes 151 12 -ISI-6R 540-MIZ18 008 012+ 16.5 9

30 1.4 8X1-ABS O29 012+ 16.5 O

O.2 1

BX1-ABS O29 012+ 34.6 7

0.4 1

540-MIZ18 008 012+ 34.6 15 50 1.3 540-MIZ18 008 012+ 35.4 13 43 1.6 BX1-ABS O29 012+ 35.4 14 0.5 1

Tubes thi s Dataset:

87 Indications this Dataset 138 20 1 'ISI-84.8X1-ABS 032 005+ 21.6 7

0.4 1

540-MIZ18 001 005+ 21.6 9

30 1.1 8X1-ABS 032 005+ 32.0 11 0.5 1

540-MIZ18 001 005+ 32.1 8

26 1.0 27 78 ISI-84 540-MIZ18 004 015+ 32.7 11 36 1.5 ax1-ABS O25 015+ 32.8 0

0.7 1

33 102 151-84 BX1-ABS O25 015+

5.6 1

0.7 1

540-MIZ18 004 015+

5.8 11 36 1.1 38 29 ISI-84 8X1-ABS 032 012+

3.6 5

0.2 1

540-MIZ18 005 012+

3.7 6

21 1.7 8X1-ABS 032 014+ 18.5 7

0.1 1

540-MIZ18 005 014+ 18.6 11 39 1.0 46-88 151-84 BX1-ABS O26 015+ 30.3 177 0.5 1

540-MIZ18 003 015+ 30.4 8

26 1.4 49 85 ISI-84 BX1-ABS O26 015+ 36.3 185 0.4 1

540-MIZ18 003 015+ 36.3 7

23 1.5 55 124 ISI-84 540-MIZ18 003 015+ 14.2 7

23 2.1 8X1-ABS O26 015+ 14.3 173 0.4 1

MORE =>

TDR 935 REV. 0 APPENDIX IV PAGE 15 OF 20 THREE MILE ISLAND: UNIT 1 4

COMPONENT : SG

'A' OUTAGE : 7R CONFIRMED INDICATIONS GE'20% T.W.

TUBES SORTED BY DATA SET Row Tube Data Exam Exam Indication Ind Ind Circ Set Tech Reel Location Deg T.W.

Volt Ext Notes 56 93 ISI-84 8X1-ABS O26 015+ 39.3-11 0.2 1

540-MIZ18 003 015+ 39.3 11 36 0.9 58 117 ISI-84 BX1-ABS O27 015+ 39.9 4

0.4 1

540-MIZ18 002 015+ 40.0 6

20 0.8 i

60 65 ISI-84 BX1-ABS 032 015+ 37.3 353 0.2 1

l 540-MIZ18 005 015+ 37.3 9

30-1.1 i

72 54 ISI-84 540-MIZ18 005 015+ 32.5 9

32 1.1 I

BX1-ABS 032 015+ 32.5 18 0.3 1

74 83 ISI-84 540-MIZ18 004 015+ 35.2 6

20 1.4 BX1-ABS O27 015+ 35.3 0

0.2 1

75 122 ISI-84 540-MIZ18 002 015+ 44.9 7

23 1.7 l

OX1-ABS O27 015+ 44.9 7

0.3 1

88 124 ISI-84 8X1-ABS O27 015+

3.5 2

'O.5 1

540-MIZ18 010 015+

3.5 10 33 1.0 107 116 ISI-84 540-MIZ18 009 015+ 43.7 6

20 1.0 BX1-A85 028 015+ 43.7 353 0.2 1

111 51 151-84 540-MIZ18 007 015+ 38.7 11 36 1.9 BX1-ABS 031 015+.38.8 187 0.3 1

123 68 151-84 8X1-ABS O29 015+ 14.4 O

O.5 1

540-MIZ18 008 015+ 14.4 8

26 1.4 130 46 ISI-84 540-MIZ18 007 015+ 22.7 8

26 1.6 SX1-ABS 033 015+ Z2.0 2

0.2 1

132 36 ISI-84 BX1-ABS 033 015+ 33.7 7

0.4 1

l 540-MIZ18 007 015+ !!. 7 6

20 1.3 134 65 ISI-84 540-MIZ18 008 015+ 37.6 7

23 2.0 8X1-ABS O29 015+ 3 7. e 2

0.3 1

l MORE =>

TDR 935 REV. O N

APPENDIX IV-PAGE 16 OF 20 THREE MILE ISLAND: UNIT 1 COMPONENT : SG

'A' OUTAGE : 7R l

CONFIRMED INDICATIONS GE 20% T.W.

l l

TUBES SORTED BY DATA SET

- Row Tube Data Exam Exam Indication Ind Ina Circ

' Set Tech Reel Location-Deo T.W.

Volt Ext Notes 146 3

151-84 540-MIZ18 007 012+ 26.4 11 36 1.0 SX1-ABS 053 012+ 26.4 178 0.4 1

Tubes this Dataset:

21 Indications this Dataset:

23 I

73 44 LANEWE 540-MIZ18 019 004+

0.5 68 0

2.2 BX1-ABS 052 004+

0.G 116 0.4 1

79 26 LANEWE 540-MIZ18.037 UTS+

5.0 10 33 1.5 BX1-ABS 051 UTS+

5.0 187 0.4 1

79 27 LANEWE 540-MIZ18 037 UTS+

4.0 7

23 1.2 BX1-ABS 051 UTS+

4.3 0

0.3 1

l 84 1

LANEWE 540-MIZ18 038 UTS+

0.1 19 DTS 4.2 OX1-ABS 052-UTS+

'O.1 2

0.3 1

1

' Tubes this Dataset:

4 1

Indications this Dataset:

4 l

l 91 126 RANSAM 540-MIZ18 011 009+ 19.9 13 43 1.1 l

)

BX1-ABS O26 009+ 19.9 5

0.5 1

BX1-ABS O26 014+

0.3 354 0.3 1

i 540-MIZ18 011 014+

0.3 7

23 1.4 l

1 93 121 RANSAM 540-MIZ18 011 015+ 34.8 6

20

1. 0 8X1-ABS O28 015+ 34.9 182 0.2 1

95 126 RANSAM BXI-ABS O28 UTS+

6.4 186 0.2 1

l 540-MIZ18 011 UT5+

6.6 10 33 1.7 l

1 128 2

RANSAM 540-MIZ18 013 014+ 13.5 19 63 1.1 BX1-ABS 031 014+ 13.5 195 0.4 1

Tubes this Datasett 4

Indications tnis Dataset:

5 V'O R i

=-

7,_

l TDR 935 REV. O APPENDIX IV PAGE 17 OF 20 THREE MILE ISLAND: UNIT 1 COMPONENT : SG

'A' OUTAGE : 7R CONFIRMED INDICATIONS GE 20% T.W.

TUBES SORTED BY DATA SET Row Tube Data Exam Exam-Indication Ind.

Ind Cire Set Tech Reel Location Deg T.W.

Volt Ext Notes 48 83 S/N-6R 540-MIZ18 018 UTS+

6.1 7

23

2. O' BX1-ABS 052 UTS+

6.1 9

0.8 1

95 124 S/N-6R 8X1-ABS O28 UTS+

2.2 12 0.4 1

540-MIZ18-011 UTS+. 2.2 11 36-1.1 122 31 S/N-6R OX1-ABS 031 UTS+

1.8' 15 0.3 1

540-MIZ18 013 UTS+

1.8 17 56 1.2 Tubes this Dataset:

3.

Indications this Dataset 3

.131 1

SECSAM 8X1-ABS 051 013+ 25.6 353 0.4 1

540-MIZ18 040 013+ 25.6 9

30 1.5 134 49 SECSAM 8x1-ABS 051 015+ 37.1 352 0.4 1

540-MIZ18 042 015+ 37.1 8

26 1.2 Tubes this Dataset:

2 Indications this Dataset:

2 93 123 WSC BX1-ABS O28 015+

7.0 0

0.2 1

540-MIZ18 011 015+

7.0 8

26 0.9 Tuces this Dataset:

1 Indications this Dataset:

1 Total Tubes :

154

-Total. Indications :

219

i f

ig TDR 935

. REY. 0:

g APPENDIX'IV-PAGE 18 ' OF. ' 20

'THREE MILE ISLAND UNIT 1

, COMPONENT : SG

'B

1 OUTAGE : 7R CONFIRMED INDICATIONS-GE 20% T.W.

' TUBES SORTED BY DATA SET Row Tube Data Exam Exam In'di cati on L Ind Ind Circ Set Tech Reel Location Dog T. W.

Volt Ext Notes b

1 11 ISI-6R 540-MIZ18 002 UTS+

2.9 8

26 1.5 8X1-ABS 018 UTS+

2.9 5

_O.5 1

7 42 ISI-6R OX1-ABS.

018 013+ 11.2 11

'O.3-1 540-MIZ18 002 013+ 11.2 11 36 1.1 9

22' ISI-6R'8X1-ABS' 018 015+ 44.6 5

0.7 1

540-MIZ18 003 015+ 45.0 8

28 1.4 30 13 ISI-6R 8X1-ABS 018 015+ 45.2 7

1.1 1

540-MIZ18 003 015+ 45.2 10 36 2.3 30' 71.

ISI-6R BX1-ABS 018 015+ 32.2 11 0.7

.1-540-MIZ18 003 015+ 32.6 8

26-1.4 34 71 ISI-6R 540-MIZ18 003 UTS+

3.7 12 40 2.5 8X1-ABS 018 UTS+

3. 7.

11 1.2 1

60 83 ISI-6R 540-MIZ18 003 015+ 39.3 10 33 1.3 8X1-ABS 018 015+ 39.3 O

O.7 1

105 8

ISI-6R 540-MIZ18 003 UTS+ lb. 5 6

20 1.6 BX1-ABS 018 UTS+

6. 6 15 0.9 1

109.

11.lSI-6R BX1-ABS 018 015+ 44.8 25 0.'6 1

540-MIZ18 003 015+ 44.8 8

26' 1~. 2 540-MIZ18 003 UTS+

5.0 8

26 1.4 SX1-ABS 018 UTS+

5.2 7

1.2 1

109 112 ISI-6R BX1-ABS 018 004+

0.0 16 0.5 2

540-MIZ18 003 004+

0.0 6

20 2.0 122 44 ISI-6R BX1-ABS 018 UTS+

2.2 177 1.1 1

540-MIZ18 003 UTS+

2.5 6

20 1.7 MORE =>

TDR 935 REv. O APPENDIX IV PAGE' 19 OF 20 THREE MILE ISLAND UNIT 1 COMPONENT : SG

'B' OUTAGE : 7R CONFIRMED INDICATIONS GE 20% T.W.

TUBES SORTED BY DATA SET Row Tube Data Exam Exam Indication Ind Ind

'Cire Set Tech Reel Location Deg T.W.

Volt Ext Notes 124 36 ISI-6R 540-MIZ18 003 015+ 45.1 8

26' 1.3 8X1-ABS 018 015+ 45.2 28 0.4 1

136 40 ISI-6R 8X1-ABS 018 015+ 40.4 11 0.7 1

540-MIZ18 003 015+ 40.5 6

20 1.7 143 43 ISI-6R 540-MIZ18 003 010+

7.7 6

20 0.9 OX1-ABS 018 010+

7.9 18 0.4 1

Tubes this Dalaset:

14 Indications this Dataset:

15

.6 4

ISI-82 540-MIZ18 003 UTS+

5.3 7

23 2.8 BX1-ABS 018 UTS+

5.3 7

1.3 1

Tubes this Dataset:

1 Indications this Dataset:

1 75 5

LANEWE 8X1-ABS 019 015+

0.0 97 2.5 1

WEAR S40-MIZ18 014 015+

0.0 50 DSS 4.6 75 6

LANEWE 540-MIZ18 014 015+

0.0 92 DSS 2.1 8X1-ABS 019 015+

0.0 95 3.7 1

WEAR 75 7

LANEWE 540-MIZ18 014 015+

0.0 53 DSS 4.4 8X1-ABS 019 015+

0.0 96 1.4 1

WEAR 75 8

LANEWE BX1-ABS 019 015+

0.0 103 0.8 1

WEAR 540-MIZ18 014 015+

0.0 31 DSS 2.9 Tubes this Dataset 4

Indications this Dataset 4

MORE =>

TDR 935 REV. O APPENDIX 1V PAGE' 20 OF 20 THREE MILE ISLAND UNIT 1 COMPONENT : SG

'B' OUTAGE : 7R CONFIRMED INDICATIONS GE 20*/. T.W.

TUBES SOFTED BY DATA SET Row Tube Data Exam Exam Indication Ind

-Ind Circ

-Set Tech Reel Location Dog T.W.

Volt Ext Notes 58 10 RANSAM 540-MIZ18 010 UTS+

0.0 26 86 3.8 8X1-ABS O22 UTS+

0.0 17 1.7

.3 Tubes this Datasets-1 Indications this Dataset:

1 22-

22. S/N-6R BX1-ABS 019 UTS+

3.0 7

0.3 1-540-MIZ18 010 UTS+

3.0 8

26 1.3 Tubes this Dataset 1

Indications this Dataset 1

29 3

SECSAM 8X1-ABS 040 UTS+

0.4 15 1.9.

2 540-MIZ18 025 UTS+

0.5 20 66 3.4 96 5

SECSAM 540-MIZ18 033 UTS+

6.5 13 43 3.5 8X1-ABS 040 UTS+

6.5 16 1.6 2

540-MIZ18 033 UTS+

6.8 6

20 3.9 OX1-ABS 040 UTS+

-6.8 23 2.5 2

Tubes this Dataset:

2 Indications this Datasets' 3

Total Tubes :

23 Total Indications :

25

_ _ _ = _ _ _ _ - _ _ _ _ _ _ _ _ - _ _ _ _ - _ _ _ _ - - _ _ _ _ - _ _ - _ _ _ _ - _ _ _ _ - _ _ _ _ - - _ _

l

]

Appendix y Review Of Previous Data

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Appendix VI Dut11ne Of Data Analyst Indoctrinetton i

1

f.

TOR 935 Revision 0 Appendix VI Page 1 of 2 GENERAL PUBLIC UTILITIES THREE MILE ISLAND PLANT, UNIT #1 SCHEbOLE DAY ONE llE

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

30 1:45 2:15 Miz-18 Bobbin Coil Guideline Lecture (InstructorDirected)

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

15 2:45 - 3:00 Break

30 3:00 - 3:30 8XI Analysis Lecture (Instructor Directed)

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

l

TDR 935 Revision 0 Appendix VI Page 2 of 2 a

SCHEDULE (Cont.)

DAY TWO 4:00 8:00 - 12:00.

Practice Tape Lab Session (Class Reviews Tape)

I

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

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

Times shown could be subject to change or modification.

________-__-_._._______._____m________.______

ML20246E523

Text

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