ML17263A244

Rev 0 to Summary Exam Rept for 1993 SG Eddy Current Insp at Re Ginna Nuclear Power Station.

ML17263A244
Person / Time
Site:	Ginna
Issue date:	04/15/1993
From:	Davison M, Geiken G, Saporito M ROCHESTER GAS & ELECTRIC CORP.
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ML17263A243	List: ML17263A242 ML17263A244
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ROCHESTER GAS AND ELECTRIC CORPORATION 89 East Avenue, Rochester, NY 14649 MATERIALS ENGINEERING AND INSPECTION SERVICES

SUMMARY

EXAMINATIONREPORT FOR THE 1993 STEAM GENERATOR EDDY CURRENT INSPECTION AT R. E. GINNA NUCLEAR POWER STATION REVISION 0 13 April 1993 PREPARED BY:

Michael J. avison Engineering Assistant - NDE Materials Engineering and Inspection Services REVIEWED BY:

Gerald W. Geiken Supervisor Materials Engineering and Inspection Services APPROVED BY:

Michael J. Saporito DATE: / /~

Manager Materials Engineering and Inspection Services 930426028i 9304i9 PDR ADOCK 05000244 8 , PDR

TABLE OF CONTENTS

1.0 INTRODUCTION

2.0 DATA AC UISITION PROGRAM 3.0 DATA ANALYSIS RE ULTS

SUMMARY

45 5.0 CORRECTIVE ACTION 50 Figure 1 Figure 2 52 Figure 3 59 Table 1 Table 2-A 14 Table 2-B 31 Table 3 46 Table 4-A 53 Table 4-B 60 Table 5 68

1.0 INTRODUCTION

The following is a summary report of the results of the multifrequency eddy current examination performed during the 1993 Annual Refueling and Maintenance Outage at the R. E. Ginna Nuclear Power Station in Ontario, New York. The examinations were performed in both the "A" and ".B" recirculating steam generators which are Westinghouse Series-44 design.

Each generator contains 3260 Inconel 600 MillAnnealed U-Bend tubes having an outside diameter of 0.875" and a nominal wall thickness of 0.050".

The purpose of the eddy current examination was to assess any corrosion or mechanical damage that may have occurred during the cycle since the 1992 examination. Particular attention was given to the detection of:

1) Intergranular attack (IGA) and intergranular stress corrosion cracking (IGSCC) within the inlet tubesheet crevice region.

2) Intergranular attack (IGA) and intergranular stress corrosion cracking

'I (IGSCC) within the outlet tubesheet crevice region (none detected).

3) Primary water stress corrosion cracking (PWSCC) at the inlet tubesheet roll transition.

4) Primary water stress corrosion cracking (PWSCC) at the outlet tubesheet roll transition (none detected).

Page 1 of 73

5) Pitting and wastage between the tubesheet and first support plate.

6) Wear at the antivibration bar to tube intersections in the U-bend region.

7) Denting at tube support intersections.

8) Primary water stress corrosion cracking (PWSCC) in the Row 1 and Row 2 U-bend area (none detected).

9) Intergranular attack (IGA) and intergranular stress corrosion cracking (IGSCC) at hot leg support plate intersections (none detected).

10) Stress corrosion cracking (SCC) at the tube support plate regions with dents (none detected).

The examination was performed by personnel from Rochester Gas and Electric (RGdkE) and Allen Nuclear Associates, Inc. (ANA). All personnel were trained and qualiTied in the eddy current examination method and have been certified to a minimum of Level I for data acquisition and Level II for data analysis. All examination activities were performed in accordance with MEIS NDE-500-series procedures. In addition, all acquisition personnel were trained and qualified to site specific procedures and all analysis personnel were trained and qualified to the site specific "Steam Generator Data Analysis Guidelines -RG&E Ginna Station". These analysis guidelines Page 2 of 73

were prepared in accordance with Revision 2 of the Electric Power Research Institutes (EPRI) "PWR Steam Generator Inspection Guidelines".

The data analysis was performed by two independent teams. Both teams performed their analysis manually utilizing the Zetec EDDYNET Data Analysis System. The results of these two analyses were compared for discrepancies using the EDDYNET compare program. The typical data flow chart is shown on Figure 1 (Page 5). The following list describes some typical discrepancies between analysis teams requiring resolution by the Level III resolvers.

Any indication that is reported as >20% by either team and is not reported by the other team or is sized at >10% difference.

Any indication spanning the repair limit, (39% vs. 41%).

Any difference of > 1 inch in the axial location of a flaw.

o Any tube which was analyzed by one team but not the other (may have been missed or improperly entered by one analysis team).

o Any difference in the reported test extent.

o All indications identified as IGA and/or SCC regardless of whether one or both parties have reported it.

Page 3 of 73

o Any tube reported as restricted by one team but not the other (may have been missed or improperly entered by one analysis team).

o Any tube for which a retest was requested by one team but not the other.

o All Roll Transition Indications reported by one team but not the other.

In addition to the above, all tubes requiring repair whether reported by one or both teams were reviewed by the resolvers. In all cases, the removal of a repairable indication from the data base received the concurrence of two Resolution personnel.

Page 4 of 73

e Typical Beta Flow Chart Rau Oats PrlearM Secondary Rna lMs is RnalMsis Coaosr i on of'esults Oo Results Ro Retiree P

An't Reps irab le Yes Indi cat tons Resolut ton Oats Management Eddy Current I.evei III Rev)eu lt eahl 6~nerntor 6rouo

~Fi ure 1 Page 5 of 73

2.0 DATA AC UISITION PROGRAM The initial eddy current examination of the "A" and "B" steam generators was performed utilizing a standard bobbin coil technique with data acquisition being performed with the EDDYNET Acquisition System. The frequencies selected were 400, 200, 100 and 25 kHz. The examination was performed primarily through the 1st tube support through the tubesheet region to examine open crevice, roll transition regions, and the area between the top of the inlet tubesheet to the 1st tube support plate. 20% of all open tubes were also examined throughout the full length of tubing.

Additional eddy current examinations of the "A" and "B" steam generators were performed utilizing the Zetec 3-coil Motorized Rotating Pancake Coil (MRPC) probe to examine the roll transition region, selected crevices and support plates. The frequencies used for these examinations were 400, 300, 100, and 25 kHz. All row 1 and 2 U-bends were also examined with MRPC.

During the 1992 eddy current examination, the full crevice region was evaluated utilizing the Motorized Rotating Pancake Coil (MRPC) technique with subsequent bobbin examinations being performed in all tubes identified Page 6 of 73

by MRPC as having repairble indications in B S/G/ Evaluations of the bobbin data indicated that the bobbin technique is capable of detecting all crevice indications detected by MRPC except those located at or in close proximity to the roll transition. As a results of these bobbin evaluations and discussion with Mssrs. Emmett Murphy and Al Johnson of the U. S. Nuclear Regulatory Commission on October 28, 1992, RGAE concluded that standard bobbin examination of the crevice region with ensuing substantiation by MRPC and a 100% MRPC examination of the roll transition region in 1993 would provide repairble indication detection capability comparable to the 100% crevice MRPC examination employed in 1992.

Prior to the examination of the steam generators, an inspection program was established for the inlet and outlet sides of both the "A" and "B" steam generators. The inlet or hot leg examination program plan was generated to provide the examination of 100% of each open/unsleeved steam generator tube from the tube end through the first tube support plate, along with 20%

of these tubes being selected and examined for their full length (20% random sample as recommended in the Electric Power Research Institute (EPRI) guidelines) with the bobbin coil. In addition, 20% of each type of sleeve was examined and the remaining tube examined full length. All Row 1 and Row 2 U-Bend regions were examined with the Motorized Rotating Pancake Coil (MRPC) between 06H and 06C from the cold leg side.

Page 7 of 73

A number of supplemental examina'tions were also performed to assist in flaw characterization and confirmation and to continue to monitor for the onset of new damage mechanisms.

Table 1 is a breakdown, by steam generator, of all tubes programmed for examination, numbers examined and the extent examined.

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STEAM GENERATOR "A" 1993 EDDY CURRENT INSPECTION EXTENTS PRIOR TO CORRECTIVE ACTION Total Tubes 3260 Out of Service 185 Sleeved Tubes 555 Open Unsleeved Tubes 2520 MIN'UMBER REQ'D PROGM'D NUMBER INSPT'D PERCENT COMPLETE'ot Leg to 1st TSP 2520 2520 2520 100.0%

Full Length (20% Random) 696 696 696 100.0%

Roll Transition MRPC 2520 2520 2520 100.0%

U-Bend MRPC (Rows lk 2) 165 165 165 100.0%

Previous Ind. > 20% 81 81 81 100.0%

Sleeves 117 117 117 100.0%

Deplugged Tubes (F/L) 0.0%

Table 1

'er Appendix B requirement.

Complete = Tubes inspected/Required Minimum.

Page 9 of 73

STEAM GENERATOR "B" 1993 EDDY CURRENT INSPECTION EXTENTS PRIOR TO CORRECTIVE ACTION Total Tubes 3260 Out of Service 313 Sleeved Tubes 1134 Open Unsleeved Tubes 1813 REQ7D NUMBER M'

NUMBER

'~ME PERCENT E'ot Leg to 1st TSP 1813 1813 1813 100.0%

Full Length (20% Random) 416 416 416 100.0%

Roll Transition MRPC 1813 1813 1813 100.0%

U-Bend MRPC (Rows 1 4 2) 144 144 144

'00.0%

Previous Ind. ) 20% 27 27 100.0%

Sleeves 232 232 232 100.0%

Deplugged Tubes (F/L) 48 48 48 100.0%

Table 1 (Cont'd)

'er Appendix B requirement.

Complete = Tubes Inspected/Required Minimum.

Page 10 of 73

3.0 DATA ANALYSIS RESULTS SUMIVIARY The data analysis was performed using the Zetec EDDYNET System (Version 20).

For the MRPC examinations, all data was reviewed by displaying the 400 kHz or 300 kHz pancake coil data on the CRT along with the vertical component of the pancake and axial sensitive coils in strip chart form. Other frequencies and coils were selected as necessary for the evaluation of indications. No depth sizing was performed with the MRPC data. Any tube containing a flaw detected by the MRPC examination was repaired.

For the bobbin coil examination, all data was reviewed by displaying the 400 kHz data on the CRT along with the vertical component of the differential and absolute mix outputs in strip chart form (where applicable).

Other frequencies and their components were selected as necessary for the evaluation of indications.

All recordable indications were logged into the computer and stored on optical disk. The final report form summarizing all indications )20% TW (including IGA and PWSCC which is assumed to be )20%) for each generator can be found in Table 2. An explanation of the abbreviations and nomenclature used on these lists has been compiled for ease of interpretation.

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LIST OF )20% INDICATIONAND CREVICE INDICATIONNOMENCLATURE To of List Information ROW - ROW number from the tube identiTication.

COL - Column number from the tube identification, VOLTS - Amplitude of the measured indication signal response.

IND.DESC.- Type of damage mechanism.

%TWD- Percent through wall depth or code for non-measurable indications.

INDICATION LOCATION- Reference point from which the indication was measured along with axial distance from that reference point.

Information Under IND. DES ADI - Absolute Drift Indication Signal which is indicative of IGA.

ADS - Absolute Drift Signal which may be indicative of IGA.

CRI - Circumferential Roll Traiisition Indication CCI - Circumferential Indication not at the Roll Transition (B&W Plugs)

DFI'- De-Plugged Tube DRT - Distorted Roll Transition may be indicative of PWSCC.

DRI - Distorted Roll Indication indicative of PWSCC.

MAI - Multiple Axial Indication - MRPC identified or veriTied crevice indication(s).

MRI- Multiple Roll Indiciition - MRPC identified or verified axial roll transition indication(s).

NQI - Non-Quantifiable Indication - Differential signal indicative of SCC NQS - Non-QuantiTiable Indication - Differential signal which may be indicative of SCC.

PTF- Parent Tube Flaw SAI - Single Axial Indication - MRPC identified or verified crevice indication.

SCC - Stress Corrosion Cracking SRI - Single Roll Indication - MRPC identilied or verified axial roll transition indication.

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LIST OF ) 20% INDICATIONAND REVICE INDICATIONNOMENCLATURE CON'T Information Under % TWD XX% - The measured percent TW depth of the indication.

Information Under INDI ATION LO ATION TEH- Hot Leg Tube End (Bottom).

TSH- Top of inlet tubesheet, TSP - Tube Support Plate TEC - Cold Leg Tube End (Bottom).

TSC - Top of outlet tubesheet.

AVB - Antivibration Bars (Numbered from Hot Leg to Cold Leg).

-XX.X- Axial distance below the secondary face of the tubesheet or support plates where the indication is located.

+XX.X- Axial distance above the primary or secondary face of the tubesheet or support plates where the indication is located.

OXH - Tube Support Plate Location Hot Leg 1-6 OXC - Tube Support Plate Location Cold Leg 1-6 Page 13 of 73

R. G. & E. SG/A 93MAR Ginna Station REPORTABLE INDICATIONS Row Col Volts Ind. %TWD Indication Desc Location 6 2 0.6 ADS TEH +20. 9 4 3 1.7 SRI TEH +2. 1 6 3 0.7 SRI TEH +1.9 13 3 1.6 ADS TEH +10.4 to +14.2 7 4 1.2 MRI TEH +2.2 11 4 0.4 ADS TEH +5.8 13 4 0.7 ADS TEH +9.8 2 5 2.1 SRI TEH +2.3 1.5 SRI TEH +2.5 0.6 ADS TEH +14.6 3 5 10.9 SBI TEH +0.1 3.7 SBI TEH +0.4 15 5 1.6 ADS TEH +7.4 17 6 1.6 ADS TEH +11.9 21 6 0.8 ADS TEH +2.9 15 7 '.6 ADS TEH +4.3 6 8 2.3 MRI TEH +1.7 2 9 2.7 SRI TEH +1.7 6 9 2.5 SRI TEH +1.7 12 10 0.8 MRI TEH +2.5 5 11 2.9 MRI TEH +2.4 3 12 1.8 SRI TEH +2.4 16 12 0.3 21 TSH +1.3 26 14 5.3 MRI TEH +2.2 2 16 0.7 SAI TEH +3.3 Table 2-A Page 14 of 73

4 R. G. & E. SG/A 93MAR Ginna Station REPORTABLE INDICATIONS Row Col Volts Ind. 4TWD Indication Desc Location 10 16 0.8 93 TEH +2.8 0.9 MAI TEH +3.2 0.3 93 TEH +8.8 19 16 4 4 SRI TEH +3. 0 9 17 2.3 SRI TEH +2.3 0.7 20 TSH +1.6 12 17 0.7 SAI TEH +3.3 21 17 0.5 SAI TEH +2.6 to +3.5 25 17 0.8 SAI TEH +3.9 10 18 0.4 80 TEH +7.2 1.6 MAI TEH +8.7 4.2 ADS TEH +14.6 29 18 3.6 SRI TEH +2.1 4 19 0.9 20 TSH +0.8 13 19 1.2 32 TSH +0.8 14 19 1.7 SAI TEH +5.0 3.0 ADS TEH +6.7 16 19 0.9 SAI TEH +3.3 24 19 3.0 SRI TEH +2.3 33 19 7.2 MBS TEH +0.8 7 20 2.6 25 TSH +2.3 11 20 1.2 23 TSH +2.0 12 20 0.5 NQI TEH +3.2 14 20 1.8 ADS TEH +6.4 15 20 0.8 SAI TEH +2.8 Table 2-A Page 15 of 73

e R. G. & ~ E. SG/A 93MAR Ginna Station REPORTABLE INDICATIONS Row Col Volts Ind. %TWD Indication Desc Location 1 21 25.5 SBI TEH +0. 3 10.6 SBI TEH +0.3 3.8 SRI TEH +2.7 4 21 1.8 ADS TEH +6.8 8 21 5.7 23 TSH +2.0 10 21 3.0 39 TSH +2.0 11 21 8.9 27 TSH +2.2 13 21 5.4 22 TSH +2.1 14 21 4.1 ADI TEH +4. 6 3.3 ADI TEH +10.7 4.3 24 TSH +1. 6 15 21 6.6 29 TSH +1.3 16 21 5.5 25 TSH +1.1 17 21 2.6 CRI TEH +1.8 5.1 32 TSH +0.9 22 21 1.8 CRI TEH +2. 3 0.8 CRI TEH +2. 3 0.6 MAI TEH +5. 0 1.2 ADS TEH +8. 4 0.8 SAI TEH +8. 6 1.3 ADS TEH +9. 6 24 21 0.9 SAI TEH +4. 1 0.3 NQS TEH +4. 3 38 21 2.4 26 AV3 +0.0 3 22 1.4 ADS -TEH +18.1

+3.0

'.8 10 22 24 TSH 11 22 5.0 26 TSH +2.5 12 22 6.2 25 TSH +2.2 14 22 8.6 24 TSH +2.6 15 22 5.0 23 TSH +1.8 Ta e 2-A Page 16 of 73

R. G. & E. SG/A 93MAR Ginna Station REPORTABLE INDICATIONS Row Col Volts Ind. %TWD Indication Desc Location 16 22 6.3 22 TSH +1.5 17 22 1.6 CRI TEH +2.2 7.2 22 TSH +1.5 18 22 1.4 SAI TEH +2. 7 1.7 SAI TEH +3. 8 2.2 ADI TEH +6. 4 5.7 28 TSH +1.0 23 22 3.0 28 TSH +0.5 25 22 0.9 ADS TEH +9.2 10 23 6.3 20 TSH +2.3 13 23 16.4 32 TSH +3.0 28 23 2.7 ADS TEH +3.8 10 24 2.6 21 TSH +1.8 11 24 5.2 22 TSH +2.0 2.4 21 TSH +2.4 12 24 7.6 21 TSH +2.7 13 24 10.2 27 TSH +2.7 26 24 2.5 20 TSH +0.9 39 24 2.5 SRI TEH +2.9 12 25 7.2 24 TSH +2.0 13 25 0.3 NQS TEH +8.3 9.2 29 TSH +2.3 14 25 14. 6 34 TSH +2.5 17 25 11. 2 29 TSH +2.2 39 25 5.7 MRI TEH +2.8 9 26 2.8 SRI TEH +2.7 Table 2-A Page 17 of 73

R. G. & E. SG/A 93MAR Ginna Station REPORTABLE INDICATIONS Row Col Volts Ind. %TWD Indication Desc Location 24 26 1.4 ADS TEH +7.1 1.9 32 TSH +1.2 17 27 6.6 20 TSH +2.3 6.1 25 TSH +2.9 25 27 0.5 MAI TEH +3.9 4.1 ADS TEH +4.7 6 28 0.4 SAI TEH +4.1 0' SAI TEH +4.6 13 28 0.8 SRI TEH +2.6 23 28 6.5 29 TSH +2.3 1.7 21 TSC +2.3 24 28 8.1 25 TSH +1.1 26 28 0.4 SAI TEH +3.9 34 28 0.3 SRI TEH +2.5 12 29 1.0 ADS TEH +7.9 14 29 5.5 ADS TEH +3.4 15 29 5.9 23 TSH +3.0 6 30 1.8 ADS TEH +17.1 12 30 1.3 20 TSC +2.5 23 30 5.1 26 TSH +1.4 24 30 6.7 27 TSH +1.4 28 30 0.5 MRI TEH +2.6 14 31 1.9 ADS TEH +4.9 0.4 29 TSH +1.4 16 31 2.4 12 TSC +2.9 23 31 5.3 29 TSH +2.4 Table 2-A Page 18 of 73

R. G. & E. SG/A 93MAR Ginna Station REPORTABLE INDICATIONS Row Col Volts Ind. %TWD Indication Desc Location 24 31 0.5 MAI TEH +3.3 25 31 0.8 SAI TEH +3.0 26 31 2.3 23 TSC +1.2 27 31 0.4 SAI TEH +3.0 39 31 MRI TEH +2.8 1 32 1.2 ADS TEH +3.9 14 32 3.0 ADI TEH +17.3 20 32 F 1 31 TSH +2.8 22 32 13. 8 27 TSH +2.0 23 32 9.9 28 TSH +2.2 24 32 0.5 SRI TEH +2.6 11.4 24 TSH +1.6 8 33 0.4 SRI TEH +2.5 14 33 1.0 MAI TEH +2.5 5.4 ADI TEH +3.9 to +5.3 19 33 3.0 ADI TEH +3. 5 2.5 ADI TEH +15.7 6.4 25 TSH +2.8 21 33 6.2 25 TSH +1.8 22 33 11.8 26 TSH +2.3 23 33 9.9 28 TSH +2.1 24 33 , 8.6 28 TSH +1.6 25 33 2.7 ADS TEH +4.2 40 33 1.9 ADS TEH +10.8 43 33 1.3 MBM 06H +0.5 Table 2-A Page 19 of 73

R. G. & E. SG/A 93NAR Ginna Station REPORTABLE INDICATIONS Row Col Volts Ind. %TWD Indication Desc Location 7 34 0.5 SRI TEH +2. 5 11 34 9.1 ADS TEH- +5.6 16 34 0.7 56 TEH +5.2 25 34 1.7 ADS TEH +12.2 9.6 26 TSH +1.7 31 34 0.9 ADS TEH +5.7 12 35 2.3 ADS TEH +8.0 19 35 5.6 26 TSH +2.4 20 35 2.2 23 TSH +2.3 22 35 5.7 21'5 TSH +1.5 23 35 6.2 TSH +2.3 25 35 6.6 26 TSH +1.9 35 35 3.2 SRI TEH +2.7 0.9 ADS TEH +9.3 36 35 0.4 SAI TEH +3.8 20 36 1.5 25 TSH +2.8 21 36 F 1 SRI TEH +2.7 5.9 21 TSH +2.0 26 36 7.0 29 TSH +1.5 1 37 1' ADS TEH +3.2 17 37 4.3 78 TEH +7.6 2.9 79 TEH +9.1 18 37 3.9 21 TSH +2.8 22 37 5.9 22 TSH +1.8 Table 2-A Page 20 of 73

R. G. & E. SG/A 93MAR Ginna Station REPORTABLE INDICATIONS Row Col Volts Ind. %TWD Indication Desc Location 24 37 2.1 MRI TEH +2.5 7.8 20 TSH +2.4 25 37 10.1 26 TSH +1.3 5.9 24 TSH +2.2 26 37 4.9 26 TSH +1.4 3.9 25 TSH +2.2 34 37 1.6 SRI TEH +2.3 5 38 1.6 27 TSH +0.3 23 38 1.6 22 TSH +1.8 1.4 20 TSH +2.3 25 38 9.3 27 TSH +1.4 26 '8 8.4 22 TSH +1.8 12 39 0.5 21 TSH +1.4 18 39 1.5 21 TSH +2.6 20 39 1.2 24 TSH +0.3 22 39 2.7 23 TSH +1.2 23 39 0.6 31 TSH +0.6 25 39 2.3 23 TSH +1.0 6.5 22 TSH +2.2 26 39 10.3 21 TSH +2.5 34 "39 0.8 SAI TEH +5.5 3.2 ADS TEH +7.1 6 40 1.6 SRI TEH +2.3 15 40 1.0 CRI TEH +2.2 18 40 0.9 22 TSH +2.0 1.5 23 TSH +2.6 21 40 4.1 22 TSC +1.9 24 40 2.6 26 TSH +1.6 a e2-Page 21 of 73

R. G. & E. SG/A 93MAR Ginna Station REPORTABLE INDICATIONS Row Col Volts Ind. 4TWD Indication Desc Location 26 40 9.4 22 TSH +2.4 27 40 9.6 23 TSH +2.3 2 41 0.9 SRI TEH +2.3 11 41 0.9 SRI TEH +2.4 20 41 1.3 20 TSC +2.1 22 41 0.8 20 TSH +0.9 24 41 1.0 22 TSH +1.3 1.4 20 TSH +1.7 25 41 3.9 25 TSH +1.1 8.3 21 TSH +1.8 26 41 5.9 22 TSH +2.2 29 41 2.1 24 TSH +2.5 34 41 2.8 29 AV2 +0.0 2 42 2.3 SRI TEH +2.3 3 42 1.8 ADS TEH +F 1 23 42 1.3 CRI TEH +2.3 1.3 CRI TEH +2.3 2.4 28 TSH +1.1 24 42 1.4 22 TSH +0.4 26 42 6.3 23 TSH +1.8 27 42 5.6 20 TSH +2.1 29 42 3.8 23 TSH +1.1 5.5 24 TSH +1.9 31 42 0.8 71 TEH +2.7 0.6 64 TEH +4.6 32 42 1.0 SRI TEH +2.3 Table 2-A Page 22 of 73

R. G. & E. SG/A 93MAR Ginna Station REPORTABLE INDICATIONS Row Col Volts Ind. 4TWD Indication Desc Location 37 42 0.6 AV1 +0. 0 1.8 21 AV1 +0.0 3.7 34 AV2 +0.0 1.1 AVW AV2 +0.0 0.7 AVW AV3 +0.0 2.7 28 AV3 +0.0 2.1 24 AV4 +0.0 0.6 AV4 +0.0 1 43 0.9 SAI TEH +5. 0 1.9 ADS TEH +5.4 4 43 4.5 SRI TEH +2.7 16 43 1.3 CRI TEH +2.3 1.3 CRI TEH +2.3 20 43 0.7 24 TSH +2.1 22 43 1.6 21 TSH +0.7 24 0.4 SRI TEH +2.3 43'7 2.2 21 TSH +1.4 43 3.5 25 TSH +1.8 28 43 8.3 23 TSH +1.8 45 43 0.6 35 TSH +10.4 18 44 1.3 20 TSH +2.7 28 44 0.7 SRI TEH +2.3 29 44 3.8 21 TSH +1.6 31 44 4 4 CRI TEH +2.3 32 44 0.7 SAI TEH +2.9 19 45 0.8 30 TSH +3.6 29 45 3.5 33 TSH +0.9 Table 2-A Page 23 of 73

R. G. & E. SG/A 93MAR Ginna Station REPORTABLE INDICATIONS Row Col Volts Ind. :TWD Indication Desc Location 30 45 6.7 MRI TEH +2.7 1 ' 30 TSH +1.1 31 45 2.0 ADS TEH +4.1 17 46 2.1 CRI TEH +2.3 1.8 ADS TEH +11.8 19 46 0.6 31 TSH +0.8 25 46 7.0 23 TSH +1.2 26 46 4.5 30 TSH +1.4 30 47 7.6 20 TSH +0.8 14 48 4.2 22 TEC +3.5 30 48 5.0 22 TSH +1.0 33 48 0.7 SAI TEH +4.4 2.9 ADS TEH +7.3 17 49 5.7 16 TSH +0.5 20 49 0.9 31 TSH +1.4 28 49 1.9 ,ADS TEH +4.6 14 50 3.0 ADS TEH +12.1 17 50 2.7 MAI TEH +17.7 to +19.3 5.1 ADS TEH +20.2 23 50 1.7 CRI TEH +2.3 1.1 28 TSH +0.6 25 50 0.7 SAI TEH +3.0 0.9 NQI TEH +3.0 27 50 2.0 TSH +1.4 29 50 2.4 20 TSH +0.5 30 50 0.'3 28 TSH +1.2 Table 2-A Page 24 of 73

0 0

R. G. & E. SG/A 93MAR Ginna Station REPORTABLE INDICATIONS Row Col Volts Ind. %TWD Indication Desc Location 32 50 1.4 SAI TEH +5.0 1.3 ADS TEH +6.6 0.9 SAI TEH +12.6 0.7 SAI TEH +13.4 43 50 1.2 AVW AV1 +0.0 1' AVW AVl +0.0 19 51 5.6 21 TSH +1.5 25 51 3.9 ADI TEH +4.3 13 52 4.5 29 TSH +1.7 18 52 2.5 ADI TEH +19.2 2 53 0.8 CRI TEH +2.2 13 53 1.4 CRI TEH +2.2 19 53 1.3 28 TSH +1.6 23 53 1.3 CRI TEH +2.

0.5 SAI +4. 3'EH 1

1 ' ADS t

TEH +5. 1 28 53 0.6 97 TEH +4. 5 29 53 3.3 24 TSH +0.7 18 54 3.1 31 TSH +2.7 2'6 54 3.8 CRI TEH +2.3 42 54 3.8 ADS TEH +8.9 17 55 2.5 32 TSH +3.5 26 56 1.2 SAI TEH +16.0 F 1 ADS TEH +16.3 8 57 4.7 ADS TEH +5.8 22 57 10.0 TSH +1.4 23 57 3.7 21 TSH +1.4 Table 2-A Page 25 of 73

R. G. & E. SG/A 93MAR Ginna Station REPORTABLE INDICATIONS Row Col Volts Ind. :TWD Indication Desc Location 37 57 0.5 AVW AV2 -0.0 0.5 AVW AV2 -0.0 1.9 22 AV2 +0.0 0.6 AVW AV3 +0.1 0.6 AVW AV3 +0.1 2.2 24 AV3 +0.0 0.9 AVW AV4 +0.1 0.9 AVW AV4 +0.1 3.4 32 AV4 +0.0 1 58 6.4 ADS TEH +7. 5 24 58 3.8 23 TSH +1.8 26 58 3.0 CRI TEH +2.2 38 58 2.1 SRI TEH +2.4 2 59 2.3 ADS TEH +5.4 9 59 1.6 32 TSH +0.4 15 59 6.8 22 TSH +2.5 17 59 3.2 20 TSH +2.2 24 59 3.3 20 TSH +1.9 25 59 1.8 23 TSH +1.2 1 60 12.4 ADS TEH +12.7 20 60 3.0 21 TSH +1.5 13 61 4.7 35 TSH +1.4 17 61 3.8 20 TSH +1.9 19 61 4.5 27 TSH +1.6 20 61 2.8 ADS TEH +2.9 4.5 20 TSH +1. 5 24 61 3.1 20 TSH +1. 0 29 61 1.7 20 AV3 +0.0 1.5 AVW AV3 -0.1 1.5 AVW AV3 -0.1 Ta e 2-A Page 26 of 73

R. G. & E. SG/A 93MAR Ginna Station REPORTABLE INDICATIONS Row Col Volts Ind. ~TWD Indication Desc Location 15 62 6.8 21 TSH +1.9 18 62 3.5 MRI TEH +6.2 to +15.3 2.5 ADS TEH +9.3 2.3 ADS TEH +18.0 3.7 20 TSH +1.5 19 62 7.0 23 TSH +l. 5 20 62 4.3 22 TSH +1.4 3 63 1.0 ADS TEH +4.6

,4 63 1.3 ADS TEH +4.4

~

5 63 2.3 ADS TEH +8.1 18 63 4.1 ADS TEH +7.8 4.7 20 TSH +1.5 19 63 6.5 23 TSH +1.4 28 63 0.4 AVW AV3 +0.4 31 63 1.9 MRI TEH +2.4 1 64 0.5 SRI TEH +3.0 2 64 4.6 ADS TEH +9.1 7 64 2.0 ADS TEH +4.4 13 64 5.3 21 TSH +1.6.

16 64 0.7 SRI TEH +2.5 19 64 8.6 22 TSH +1.5 32 '4 0.9 NQS 01H -0.3 ll 65 4.1 22 TSH +0.9 13 65 3.6 20 TSH +1.3 15 65 5.4 26 TSH +1.5 Table 2-A Page 27 of 73

0 II

R. G.

~ ~ & E.

~ SG/A 93MAR Ginna Station REPORTABLE INDICATIONS Row Col Volts Ind. %TWD Indication Desc Location 17 65 1.8 ADS TEH +11.5 12 66 3.8 26 TSH +1.4 13 66 7.9 22 TSH +1.4 14 66 5.5 28 TSH +1.9 15 66 7.3 23 TSH +1.8 18 66 7.3 28 TSH +1.8 19 66 9.7 22 TSH +1.8 21 66 2 ~ 1 22 TSH +1.6 11 67 4.7 21 TSH +1.5 19 67 4.9 23 TSH +1.8 24 67 1.0 SRI TEH +2.3 26 67 0.5 SRI TEH +2.2 35 67 1.0 SRI TEH +2.3 38 67 1.4 SRI TEH +2.3 3 68 1.3 SRI TEH +2.6 8 68 6.9 21 TSH +0.9 13 68 4' ~ 21 TSH +1.6 19 68 3.6 ADS TEH +3.5 27 68 0.9 SRI TEH +2.1 2 69 0.6 SRI TEH +2.3 3 69 0.9 SRI TEH +3.2 7 69 0.4 25 TSH +1.5 8 69 4.8 20 TSH +0.7 Table 2-A Page 28 of 73

R. G. & E. SG/A 93MAR Ginna Station REPORTABLE INDICATIONS Row Col Volts Ind. CTWD Indication Desc Location 12 69 8.0 22 TSH +1.6 16 69 1.3 SRI TEH +2.5 0.7 20 TSH +1.5 22 69 0.9 ADS TEH +6.8 27 69 1.4 SRI TEH +2.2 31 69 0.5 SRI TEH +2.3 38 69 0.8 SRI TEH +2.3 11 70 1.3 21 TSH +1.5 14 70 4.8 22 TSH +1.8 21 70 0.2 56 TEH +3.5 1.9 ADI TEH +4.6 38 70 0.7 AVW AV2 +0.0 0.7 AVW AV2 +0.0 2.0 23 AV2 +0.0 12 72 3.9 22 TSH +1.4 17 72 3.8 CRI TEH +2.5 0.4 NQI TEH +3.9 20 72 0.2 NQS TEH +4.1 37 72 0.5 AVW AV2 +0.0 2.1 24 AV2 +0.0 0.5 AVW AV2 +0.0 0.3 AVW AV3 +0.0 0.3 AVW AV3 +0.0 8 73 1.9 24 TSH +0.9 12 73 10.1 26 TSH +1.2 13 73 1' SRI TEH +2.8 8 74 ,

5.1 23 TSH +0.7 12 74 4.9 20 TSH +1.1 Table 2-A Page 29 of 73

P

~,

0

R. G. & E. SG/A 93MAR Ginna Station REPORTABLE INDICATIONS Row Col Volts Ind. %TWD Indication Desc Location 13 74 1.5 23 TSH +1.1 7 75 3.5 SRI TEH +2.5 10 75 3.5 23 TSH +1.1 5 78 1.1 SRI TEH +2.6 8 78 0.7 SRI TEH +2.4 12 78 0.6 SAI TEH +2.8 9 80 1.0 SRI TEH +2.3 11 80 , 0.7 SAI TEH +2.7 0.7 SAI TEH +2.8 20 80 3.4 ADI TEH +4.0 14 82 1.4 SRI TEH +2.4 7 83 5.6 SRI TEH +2.4 10 83 1.3 ADS TEH +4.1 12 84 5.4 MRI TEH +1.8 23 86 0.3 NQS 01H -0.8 16 87 0.8 32 TSH +12.1 Number of Tubes: 336 Number of Indications: 437 Table 2-A Page 30 of 73

I R. G. & E. sg/B 93MAR GINNA STATION REPORTABLE INDICATIONS Row Col Volts Ind. 4TWD Indication Desc Location 2 1 1.2 ADS TEH +15.8 3 1 0.5 ADS TEH +14.4 9 2 1.0 SRI TEH +2.7 6 3 ADS TEH +19.6 8 3 0.8 ADS TEH +5.8 12 3 2.3 MBS TEH +0.4 13 3 4.1 ADS TEC +6.1 to +15.6 14 3 0.6 ADS TEH +15.2 12 4 2.5 MBS TEH +0.6 12 5 2.0 MBI TEH +0.6 2.7 ADI TEH +4.8 13 5 1.8 ADS TEH +7.0 14 5 1.7 ADS TEH +13.6 to +6.1 18 5 1.6 ADS TEH +15.0 3 8 2.3 ADS TEH +3.6 1 ' SAI TEH +4.5 15 8 0.7 ADS TEH +3.1 20' 0.8 ADS TEH +9.9 5 9 1.4 ADS TEH +7.2 21 9 0.6 ADS TEH +9.7 4 10 0.7 NQS TEH +4.1 0.6 SAI TEH +4.1 1.2 SAI TEH +5.1 15 10 0.6 ADS TEH +4. 0 13 11 0.5 ADS TEH +11. 8 Ta e 2-B Page 31 of 73

R. G. & E. sg/B 93MAR GINNA STATION REPORTABLE INDICATIONS Row Col Volts Ind. %TWD Indication Desc Location 14 11 0.5 ADS TEH +6.0 14 12 1.2 ADS TEH +20.0 29 12 1 ' SRI TEH +3.1 2 13 0.3 MAI TEH +3.5 to +5.3 1.9 ADI TEH +4.9 6 13 1.6 ADS TEH +3. 6 0.5 SAI TEH +8. 0 1.5 ADS TEH +10.0 3 16 0.3 ADS TEH +4. 1 10 16 0.4 ADS TEH +5. 1 0.4 ADS TEH +6. 7 28 16 ADS TEH +3. 5 10 17 5.5 22 TSH +1.0 14 17 0.1 NQS TEH +3.8 15 17 0.5 SAI TEH +3.3 0.1 NQS TEH +4.0 32 17 0.7 SRI TEH +2.5 14 18 0.7 23 TSH +0.8 16 18 0.9 MAI TEH +3.7 to +5.0 0.2 NQS TEH +4.1 26 18 2.0 SRI TEH +2. 2 5 19 0.2 NQS TEH +5.0 22 19 2.0 SRI TEH +2 '

25 19 1.0 MRI TEH +1.9 26 19 MRI TEH +2.2 33 19 3.1 ADS TEH +4.6 Ta e 2-B Page 32 of 73

R. G. & E. sg/B 93MAR GINNA STATION REPORTABLE INDICATIONS Row Col Volts Ind. 4TWD Indication Desc Location 7 20 0.2 ADS TEH +3. 9 10 20 0.7 ADS TEH +5.4 16 20 0.5 ADS TEH +5.2 24 20 0.4 72 TEH +5.1 27 21 2.0 CRI TEH +2.5 11 22 0.6 MAI TEH +4.6 2.0 ADS TEH +5.4 3.3 22 1.0 ADS TEH +4.6 1 23 1.0 ADS TEH +4.9 11 23 0.8 ADS TEH +5.7 11.9 20 TSH +1.3 11 24 0.8 SAI TEH +2.8 14 24 0.5 87 TEH +4.3 21 24 2.3 ADS TEH +4.3 13 25 1.0 ADS TEH +5.8 24 25 0.8 ADI TEH +4.7 12.4 21 TSH +0.7 ll 26 1.2 SRI TEH +2.2 13 26 0.6 ADS TEH +5.2 1.6 SAI TEH +11.8 19 26 9.6 27 TSH +1.3 20 26 7.3 20 TSH +1.2 24 26 12.1 28 TSH +1.4 1 27 3.2 SAI TEH +3.2 3.5 ADS TEH +3.6 Table 2-B Page 33 of 73

R. G. & E. sg/B 93MAR GINNA STATION REPORTABLE INDICATIONS Row Col Volts Ind. oTWD Indication Desc Location 13 27 1.1 MAI TEH +4.8 3.0 ADS TEH +5.0 27 27 0.3 NQS TEH +3.8 10 28 1.3 ADI TEH +6.4 16 28 3.5 SRI TEH +2.6 31 28 2.1 SRI TEH +2.6 1 29 4.9 MAI TEH +3.2 0.8 75 TEH +3.3 19 29 0.7 ADS TEH +14.1 14.9 22 TSH +1.4 23 29 8.0 21 TSH +1.2 1 30 0.1 NQS TEH +5.9 8 30 0.5 ADS TEH +9.8 11 30 0.9 ADI TEH +5.5 17 30 0.9 25 TSH +0.9 1.7 20 TSH +2.0 0.9 25 TSH +19.4 29 30 2.3 SRI TEH +2.5 33 30 1~3 SAI TEH +3.4 0.3 86 TEH +4.5 35 30 1.7 ADS TEH +5.9 to +2.9 6 31 0.5 ADS TEH +8.5 9 32 1.6 ADS TEH +7.3 3 33 0.9 ADS TEH +7.5 31 33 1.5 SRI TEH +2.7 1 34 1.0 ADS TEH +5.2 Ta e 2-Page 34 of 73

r 4

R. G. & E. sg/B 93MAR GINNA STATION REPORTABLE INDICATIONS Row Col Volts Ind. 4TWD Indication Desc Location 25 34 1.8 ADS TEH +6.2 0.6 SAI TEH +6.9 0.9 SAI TEH +13.4 38 34 1.7 SRI TEH +2.7 22 35 1.6 SRI TEH +2.6 27 35 2.8 20 TSH +0.9 38 35 1.7 81 TEH +3.2 3.0 SAI TEH +3.6 41 35 1.0 SRI TEH +2.7 8 36 1.1 MAI TEH +3.4 to +7.5 1.2 ADS TEH +7.6 28 37 0.2 83 TEH +5.0 30 37 0.2 NQI TEH +16.6 34 37 2.2 MAI TEH +3. 1 0.7 ADI TEH +4. 0 38 37 0.8 SRI TEH +2. 7 41 37 0.8 SAI TEH +3. 4 25 38 1.4 22 TSC +0.6 28 38 0.3 ADI TEH +4.7 37 38 0.5 NQS TEH +2. 8 1.9 MAI TEH +3. 0 to +3. 9 6 39 2.7 ADS TEH +6. 6 24 39 2.2 23 TSC +0.6 45 39 1.7 25 TSH +41.8 4 40 ADS TEH +7.6 8 40 2.3 ADS TEH +9.3 Ta e 2-B Page 35 of 73

R. G. & E. sg/B 93MAR h

GINNA STATION REPORTABLE INDICATIONS Row Col Volts Ind. %TWD Indication Desc Location 24 40 1~7 ADS TEH +5. 0 to +16. 1 6.4 23 TSH +1.2 25 40 0.6 ADS TEH +7.6 0.6 24 TSH +2.3 12 41 1.0 MAI TEH +3.5 1.1 ADS TEH +7.4 23 41 5.2 20 TSH +1.4 24 41 1.0 ADS TEH +15.6 6.4 24 TSH +1.3 2.3 21 TSC +0.5 4 42 1.3 ADS TEH +5. 6 6 42 1.1 ADS TEH +6.4 5.2 31 TSH +0.5 11 42 1.7 ADS TEH +6.7 23 42 0.7 SAI TEH +4.9 to +6.3 1.1 ADS TEH +5.3 0.7 SAI TEH +16.6 to +18.0 0.7 ADS TEH +17.8 29 42 0.7 MAI TEH +8. 2 to +17. 2 1.2 ADS TEH +8.9 22 43 0.6 21 TSH +0.8 27 43 0.3 NQI TEH +6.1 29 43 0.7 SAI TEH +5.6 1.4 SAI TEH +7.2 to +8.1 1.9 SAI TEH +9.2 to +11.8 1.7 ADS TEH +12.2 37 43 F 1 ADS TEH +4.9 0.5 MAI TEH +5.6 1 44 0.9 ADI TEH +11.6 a e2-Page 36 of 73

R. G. 6 E. sg/B 93MAR GINNA STATION REPORTABLE INDICATIONS Row Col Volts Ind. %TWD Indication Desc Location 2 44 0.5 MAI TEH +3. 0 to +7. 3 1.4 ADS TEH +7. 2 3 44 0.7 28 TSC +1.8 0.8 24 TSC +1.8 5 44 2.8 ADS TEH +8.7 8 44 1.0 MAI TEH +3.3 to +9.3 1.0 MAI TEH +3.3 to +9.3 1.8 ADS TEH +8.8 13 44 4.1 ADI TEH +7. 5 1.8 ADI TEH +9. 2 31 44 SAI TEH +3. 9 2 45 1.4 MAI TEH +3. 6 to +7.8 0.3 NQS TEH +4. 1 3 45 0.6 ADS TEH +11.2 5 45 0.5 ADS TEH +4.5 9 45 0.9 SAI TEH +6.4 0.6 ADS TEH +7.1 1 ' 20 TSH +0.5 30 45 0.7 MAI TEH +3.0 to +4.8 2.6 ADS TEH +5.8 33 45 1.0 MAI TEH +3.2 2 46 1.1 MAI TEH +2.9 to +7.4 0.7 ADS TEH +7.9 0.8 ADS TEH +11.2 7 46 ADI TEH +10.4 8 46 0.2 MAI TEH +5.5 to +8.8 0.5 ADI TEH +9.0 1.2 35 TSH +46.8 Table 2-B Page 37 of 73

R. G. & E. sg/B 93MAR GINNA STATION REPORTABLE INDICATIONS Row Col Volts Ind. %TWD Indication Desc Location 1 47 1 ' SAI TEH +3.2 1.4 ADS TEH +5.9 4 47 1.8 SAI TEH +9.0 1.4 ADS TEH +10.0 5 47 1.0 SAI TEH +5.1 0.3 47 TEH +5.1 6 47 1.1 ADS TEH +6.0 0.7 21 TSH +0.8 20 47 4.5 BLG TEH +10.9 34 47 0.4 SAI TEH +3.2 0.8 ADS TEH +4.1 4 48 1.2 NQS TEH +6.8 1.1 MAI TEH +7.4 to +5.9 6 48 1.5 ADS TEH +8.6 30 48 0.4 ADS TEH +6.8 36 48 0.9 ADS TEH +5.1 7 49 1.1 SAI TEH +2.8 1.6 ADS TEH +5.4 10 49 0.2 MAI TEH +4.4 1.2 ADS TEH +5.8 12 49 0.4 MAI TEH +4.7 to +5.8 2.0 ADS TEH +5.6 14 50 0.4 MAI TEH +3.8 1.1 ADS TEH +5.2 25 50 0.5 ADS TEH +5.9 1.4 34 TSH +3.3 32 50 0.6 MAI TEH +4.4 1.6 ADS TEH +5.6 Table 2-B Page 38 of 73

R. G. & E. sg/B 93MAR GINNA STATION REPORTABLE INDICATIONS Row Col Volts Ind. %TWD Indication Desc Location 33 50 0.6 MAI TEH +3.8 34 50 0.6 MAI TEH +3.6 to +4.6 1.8 ADI TEH +5.3 0.9 ADI TEH +7.9 43 -

50 2.0 ADS TEH +4. 5 3 51 1.3 ADS TEH +9.4 4 51 0.5 SAI TEH +3.2 6 51 1.6 24 TSH +0.3 20 51 0.9 SAI TEH +3.6 33 51 1.0 ADS TEH +5.4 12 52 0.6 ADS TEH +6.9 25 52 0.6 MAI TEH +3.2 5 53 1.0 ADS TEH +4.2 1.3 ,

ADS TEH +7.8 11 53 0.5 SAI TEH +6.9 to +8.5 1.0 ADS TEH +7.4 23 54 0.2 NQS TEH +16.6 0.5 MAI TEH +18.4 to +19.5 25 54 0.4 90 TEH +7.9 29 54 1.9 ADI TEH +6.4 18 55 0.8 38 TSH +1.9 37 55 1.6 ADS TEH +11.2 5t 0.5 ADS TEH +5.3 0.6 SAI TEH +5.7 27 56 1.0 SRI TEH +2.6 Table 2-B Page 39 of 73

e R. G. & '. sg/B 93MAR GINNA STATION REPORTABLE INDICATIONS Row Col Volts Ind. .TWD Indication Desc Location 5 57 0.6 ADS TEH +4.1 37 57 ADS TEH +5.4 2 58 0.5 SAI TEH +5.1 0.2 NQS TEH +5.3 3 58 2.0 ADS TEH +7.6 6 58 1.3 ADS TEH +7.1 7 58 1.0 ADI TEH +7.8 16 58 0.7 ADS TEH +5.0 1.4 ADS TEH +9.8 27 58 0.2 NQS TEH +5.2 0.7 SAI TEH +8.4 5 59 1.3 ADS TEH +8.1 11 59 1.7 ADS TEH +6.7 16 59 0.6 ADS TEH +6. 6 1.0 ADS TEH +9. 1 0.5 28 TSH +2.6 19 59 1.2 ADS TEH +12.7 23 59 0.4 NQS TEH +9.1 3 60 0.8 ADS TEH +6.1 21 60 1.3 25 TSH +0.6 34 60 0.8 ADS TEH +4.0 36 60 1.2 ADS TEH +3.8 5 61 3.4 ADS TEH +6.2 18 61 1.7 ADS TEH +12.1 0.7 MAI TEH +12.5 Table 2-B Page 40 of 73

R. G. & E. sg/B 93MAR GINNA STATION REPORTABLE INDICATIONS Row Col Volts Ind. %TWD Indication Desc Location 19 61 1.3 ADS TEH +8.3 0.9 MAI TEH +9.7 5 62 2.6 ADS TEH +7.6 12 62 2.5 ADI TEH +7.6 10 63 1.0 SAI TEH +6.0 22 63 10.7 22 TSH +1.7 23 63 1.2 26 TSH +1.6 10.3 22 TSH +2.1 2 64 0.3 MAI TEH +4. 7 0.6 MAI .

TEH +9.1 to +9.9 1.7 ADS TEH +9.7 14 64 0.4 SAI TEH +5. 2 1.0 ADS TEH +7.0 21 64 1.6 ADS TEH +5.7 5 65 2.2 ADS TEH +3.4 to +7.4 11 65 0.3 NQS TEH +4. 6 0.6 MAI TEH +5.2 to +5.7 15 65 0.9 ADS TEH +4.8 1.5 ADS TEH +10.6 25 65 1.6 ADS TEH +6.3 30 65 1.2 CRI TEH +2.4 1 1

~ 20 TSH +1.0 15 66 0.6 NQS TSH +2.0 16 66 2.1 ADS TEH +6.2 19 66 1.4 ADS TEH +3.3 to +6.0 Table 2-B Page 41 of 73

i R. G. & E. sg/B 93MAR GINNA STATION REPORTABLE INDICATIONS Row Col Volts Ind. %TWD Indication Desc Location 30 66 0.9 SAI TEH +9.6 1.5 ADS TEH +12.4 1 67 2.3 ADI TEH +4.1 3 67 1.3 ADS TEH +7.6 23 67 1.6 ADS TEH +12.6 37 67 0.7 ADS TEH +6.2 21 68 0.3 NQS TEH +4.1 23 68 0;7 SAI TEH +4.3 1.6 ADS TEH +12.4 27 68 0.4 SRI TEH +3.2 7 69 0.6 MAI TEH +5.4 1.2 ADS TEH +6.3 21 69 0.2 NQS TEH +5.0 0.4 SAI TEH +14.6 27 69 0.4 77 TEH +3.8 0.3 86 TEH +4.6 34 69 1.0 SAI TEH +2.7 4.2 ADI TEH +3.4 4 70 2.4 ADS TEH +6.6 19 70 0.8 MAI TEH +3.2 2.3 ADS TEH +4.2 11 71 2.1 21 TSH +0.6 24 71 0.3 NQS TEH +3.3 0.8 MAI TEH +3.6 0.4 NQS TEH +4.6 0.4 83 TEH +4.6 28 71 0.4 SAI TEH +4. 4 0.5 .NQS TEH +5. 2 Table 2-B Page 42 of 73

R. G. & E. sg/B 93MAR GINNA STATION REPORTABLE INDICATIONS Row Col Volts Ind. %TWD Indication Desc Location 7 '2 1.4 ADS TEH +3. 3 12 72 1.0 21 TSC +1. 6 14 72 1.4 ADI TEH +4.5 20 72 1.6 ADI TEH +12.2 1 73 0.4 92 TEH +3.9 18 73 0.3 NQI TEH +4.8 21 73 0.9 ADI TEH +18.4 6 74 1.9 ADI TEH +4.4 8 74 2.9 ADI TEH +5.7 1 76 2.8 ADS TEH +3.2 2.7 ADS TEH +9.5 4 76 1.0 21 TSH +0.3 7 76 0.3 SAI TEH +2.9 2.0 ADS TEH +5.8 20 76 0.3 SAI TEH +3.7 24 76 0.2 SAI TEH +2.8 12 77 0.2 SAI TEH +4.0 1 1

~ ADS TEH +4.5 1.0 ADS TEH +4.6 5 78 ADS TEH +3. 0 10 78 1.2 ADS TEH +7. 6 16 78 1.0 ADS TEH +4.4 5 79 1.8 ADS TEH +5.6

13. 79 2.8 ADS TEH +9.7 21 79 0.3 SAI TEH, +3.2 Table 2-B Page 43 of 73

R. G. & E. sg/B 9'3MAR GINNA STATION REPORTABLE INDICATIONS Row Col Volts Ind. 4TWD Indication Desc Location 10 80 0.8 MAI TEH +4. 8 1.1 ADS TEH +7. 7 8 81 0.5 SAI TEH +3. 5 0.3 NQS TEH +5. 2 13 81 0.3 SAI TEH +2. 8 12 87 13.5 MBI TEH +0.3 0.9 SAI TEH +3.0 7 88 0.8 75 TEH +3.0 2.4 MAI TEH +3.4 1.5 94 TEH +3.8 12 88 3.2 MBS TEH +0.4 13 88 3.9 MBS TEH +0.3 14 88 13.4 MBS TEH +0.8 15 88 1.0 MBS TEH +0.7 16 88 3.7 MBS TEH +0.3 17 88 9.7 MBS TEH +0.2 19 88 7.0 BLG TSH +2.9 14 89 8.0 MBS TEH +0.7 4 90 1.0 ADS TEH +4.8 1 92 1 ' 29 TSH +11.1 2.2 38 TSC +11.4 Number of Tubes: 255 Number of Indications: 362 Table 2-B Page 44 of 73

4.4 QBSRRVATIONII The results of the examination indicate that IGA and IGSCC 'continue to be active within the tubesheet crevice region on the inlet side of each steam generator. As in the past, IGA/SCC is much more prevalent in the "B" steam generator with 103 new crevice indications reported. In the "A" steam generator, 41 new crevice indications were reported.

The majority of the inlet tubesheet crevice corrosion indications are IGA/SCC of the Mill Annealed Inconel 600 tube material. This form of corrosion is believed to be the result. of an alkaline environment forming in the tubesheet crevices. This environment has developed over the years as deposits and active species such as sodium and phosphate, have reacted, changing a neutral or inhibited crevice into the aggressive environment that presently exists. Table 3 shows the steam generator IGA/SCC history.

Page 45 of 73

Ginna Steam Generators Crevice Corrosion Indication History Not Sizeable 1-25% 26-50% 51-75% 76-100% TOTAL A 8 A 8 A 8 A 8 A 8 A 8 Mar 1979 0 ':,:,,:,0,:: 0 0:: 0'.0. 0,2: 0 0- 0 2 Dec 1979 0 "0 0 -0 0 6 0 5 0 0 0 11 Apr 1980 0 19 0 1 0 2 0 7 0 2 ~

0 31 Nov 1980 0 2 0 0 0 0 0 1 0 0 0 3 Apr 1981 0 0 0 5 0 4 0 5 0 0 0 14 Feb 1982 0 1 0 0 0 1 0 6 0 5 0 13 Oct 1982 0 27 0 4 0 5 1 7 0 16 1 59 Apr 1983 3 11 1 3 0 15 0 7 0 15 4 51 Mar 1984 0 5 0 0 1 0 0 1 0 2 1 8 Mar 1985 0 23 0 4 0 6 1 9 1 27 2 69 Feb 1986 2 3 2 9 0 1 1 14 0 25 5 52 Feb 1987 17 82 0 1 1 8 3 16 13 46 34 153 Feb 1988 3 22 0 0 0 1 2 7 2 11 7 41 Mar 1988 0 1 0 0 0 0 0 1 0 4 0 6 Mar 1989 14 150 0 0 0 4 2 35 8 79 24 268 Apr 1990 16 108 2 1 3 8 6 8 11 32 38 157 Apr 1991 14 42 0 1 0 6 2 12 14 18 30 79 Apr 1992 33 104 0 0 0 0 0 2 1 12 34 118 Mar 1993 114 110 0 0 0 1 3 3 4 9 121 123 TOTALS: 216 710 5 29 5 68 21 148 54 303 301 1,258 TABLE 3 Page 46 of 73

0 Along with IGA/SCC in the crevices, there appears to have been a slight decrease in PWSCC at the roll transition during the last operating cycle.

This mechanism was first addressed in 19S9 and this year there were 20 Roll Transition (PWSCC) indications in "B" steam generator and 80 Roll Transition (PWSCC) indications in "A" steam generator. These numbers include tubes that may have PWSCC in combination with IGA or SCC in the crevice.

A large volume, typically (20% TW, wastage type condition exists just above the tubesheet secondary face of both generators. A small percentage of the tubes, generally toward the center of the bundle, have this condition.

A number of these tubes did have penetrations )20% TW but have not showed an increase in the growth rate for several cycles. No tubes were listed for corrective action from this condition. It is believed that these wastage indications were caused by the original water chemistry when phosphate was used as a buffering medium.

Small indications of probable copper 'deposits were also found in the tubesheet crevice region randomly located throughout each steam generator.

Page 47 of 73

Minor denting has been detected at the tubesheet secondary face for many years in both steam generators, primarily on the inlet side. Denting was also detected at the 1st, 2nd and 6th tube support plates randomly throughout the generator, and in most cases was of greater magnitude in size than that at the tubesheet secondary side face. In general, minor distortions of most of the tube support signals were seen.

The denting phenomenon and minor distortions at. the tubesheet and support plates can be attributed to secondary side corrosion product buildup in the annular region between the tube outside surface and the carbon steel support member. Comparisons with previous data indicates that a small increase in the extent or magnitude of denting has occurred from what has been detected by previous inspections.

MRPC at the ¹1 tube support plate intersections in the Hot Leg of both steam generators showed no indications within the support plates. This sample included tubes with and without. denting at the support intersection.

MRPC at ¹6 tube support plate intersections with dents in the Cold Leg of both steam generators showed no indications in or near the support plates.

Page 4S of 73

The eight (8) tubes in the "A" Steam Generator recorded with indications at the anti-vibration bar intersections were examined again to monitor growth rates. These indications are less than the repair limit. Many of them were recorded in earlier outages and have not changed significantly since previous examinations. In light of the fact that only a small number of tubes exhibit these indications and no measurable growth has been noted, AVB fretting wear is not considered to be an active damage mechanism or major concern at this time but will be periodically monitored for any growth.

In summary, the "A" Steam Generator had 121 tubes that were found to have "new" tubesheet cr'evice indications (41 IGA/SCC and 80 roll transitions). The "B" Steam Generator had 123 "new" tubesheet crevice indications (103 IGA/SCC and 20 roll transitions).

Page 49 of 73

5.0 CORRECTIVE ACTION Table 4 has been generated to identify tubes with crevice indications or with indications which exceed the repair criteria. This table also shows the axial location of the indication and what corrective action was taken on these tubes. Tubes requiring repair due to hot leg tubesheet crevice indications were identified by the appropriate codes:

a) an absolute drift signal (ADS) of the Mix-2 Channel b) quantifiable IGSCC indications on the 400 kHz data c) roll transition or crevice indications as identified from the MRPC examination There were no tubes deplugged in the "A" generator and 48 tubes deplugged in the "B" generator in an effort to return them to service by sleeving. These tubes were recorded with repairable indications in earlier outages. A full length examination was performed after deplugging to insure no indications existed that would prevent them from being returned to service.

Page 50 of 73

The breakdown of corrective action (repairs) performed are as follows:

The A steam generator had a total of 121 tubes with indications identified by eddy current. One tube was obstructed by a foreign object and was subsequently plugged, for a total of 122 repairs.

The 8 steam generator had a total of 123 tubes with indications identified by eddy current. Of the 4S deplugged tubes, 46 tubes were returned to service by sleeving (2 deplugged tubes were re-plugged). A total of 171 repairs were made in 8 steam generator.

A Ginna Steam Generator Tube Inspection and Corrective Action history has been tabulated on page 68 as Table 5.

Page 51 of 73

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COL 18 28 38 8: Installed in 1993: CE Plugs Rochester Gas 5 Electric Corp.

C: 51: CE Sleeves Ginna Nuclear PoMer Station 8: 62: BLW Sleeves SiG A Hot Leg 84i15/93 1: BLW Exp.Slv.Plug Inlet ACRI ISIS Tubes

R. G. & E. SG/A 93MAR Ginna Station REPAIRABLE INDICATIONS Row Col Volts Ind. %TWD Indication Desc Location Repair 4 3 1.7 SRI TEH +2. 1 BW Sleeve 6 3 0.7 SRI TEH +1. 9 BW Sleeve 7 4 1.2 MRI TEH +2.2 BW Sleeve 2 5 2.1 SRI TEH +2.3 BW Sleeve 1.5 SRI TEH +2.5 5 10.9 SBI TEH +0.1 CE Plug 3.7 SBI TEH +0.4 6 8 2.3 MRI TEH +1.7 BW Sleeve 2 9 2.7 SRI TEH +1.7 BW Sleeve 6 9 2.5 SRI TEH +1.7 BW Sleeve 12 10 0.8 MRI TEH +2.5 BW Sleeve 5 ll 2.9 MRI TEH +2.4 BW Sleeve 3 12 1.8 SRI TEH +2.4 BW Sleeve 26 14 5.3 MRI TEH +2.2 BW Sleeve 2 16 0.7 SAI TEH +3.3 BW Sleeve 10 16 0.8 93 TEH +2.8 CE Sleeve 0.9 MAI TEH +3.2 0.3 93 TEH +8.8 19 16 4.4 SRI TEH +3. 0 BW Sleeve 9 17 2.3 SRI TEH +2.3 CE Sleeve 12 17 0.7 SAI TEH +3.3 CE Sleeve 21 17 0.5 SAI TEH +2.6 to +3.5 BW Sleeve 25 17 0.8 SAI TEH +3.9 BW Sleeve 10 18 0.4 80 TEH +7.2 CE Sleeve 1.6 MAI TEH +8.7 29 18 3.6 SRI TEH +2.1 BW Sleeve Table 4-A Page 53 of 73

0 R. G. & E. SG/A 93MAR Ginna Station REPAIRABLE INDICATIONS Row Col Volts Ind. %TWD Indication Desc Location Repair 14 19 1.7 SAI TEH +5.0 CE Sleeve 16 19 0.9 SAI TEH +3.3 CE Sleeve 24 19 3.0 SRI TEH +2.3 BW Sleeve 12 20 0.5 NQI TEH +3.2 BW Sleeve 15 20 0.8 SAI TEH +2.8 CE Sleeve 1 21 25.5 SBI TEH +0.3 CE Plug 10.6 SBI TEH +0.3 3.8 SRI TEH +2.7 14 21 4.1 ADI TEH +4. 6 BW Sleeve 3.3 ADI TEH +10.7 17 21 2.6 CRI TEH +1.8 CE Sleeve 22 21 1.8 CRI TEH +2.3 CE Sleeve 0.8 CRI TEH +2.3 0.6 MAI TEH +5.0 0.8 SAI TEH +8.6 24 21 0.9 SAI TEH +4. 1 BW Sleeve 17 22 1.6 CRI TEH +2.2 BW Sleeve 18 22 1.4 SAI TEH +2.7 CE Sleeve 1.7 SAI TEH +3.8 2.2 ADI TEH +6.4 39 24 2.5 SRI TEH +2.9 CE Plug 39 25 5.7 MRI TEH +2.8 BW Sleeve 9 26 2.8 SRI TEH +2.7 CE 'Sleeve 25 27 0.5 MAI TEH +3.9 CE Sleeve 6 28 0.4 SAI TEH +4.1 CE Sleeve 0.4 SAI TEH +4.6 13 28 0.8 SRI TEH +2.6 CE Sleeve 26 28 0.4 SAI TEH +3.9 CE Sleeve Table 4-A Page 54 of 73

R. G. & E. SG/A 93MAR Ginna Station REPAIRABLE INDICATIONS Row Col Volts Ind. 4TWD Indication Desc Location Repair 34 28 0.3 SRI TEH +2. 5 BW Sleeve 28 30 0.5 MRI TEH +2.6 CE Sleeve 24 31 0.5 MAI TEH +3.3 BW Sleeve 25 31 0.8 SAI TEH +3.0 BW Sleeve 27 31 0.4 SAI TEH +3.0 CE Sleeve 39 31 MRI TEH +2.8 BW Sleeve 14 32 3.0 ADI TEH +17.3 CE Sleeve 24 32 0.5 SRI TEH +2.6 CE Sleeve 8 33 0.4 SRI TEH +2.5 CE Sleeve 14 33 1.0 MAI TEH +2.5 CE Sleeve 5.4 ADI TEH +3.9 to +5.3 19 33 3.0 ADI TEH +3.5 BW Sleeve 2.5 ADI TEH +15.7 7 34 0.5 SRI TEH +2.5 CE Sleeve 16 34 0.7 56 TEH +5.2 CE Sleeve 35 35 3.2 SRI TEH +2.7 BW Sleeve 36 35 0.4 SAI TEH +3.8 BW Sleeve 21 36 SRI TEH +2.7 BW Sleeve 17 37 4.3 78 TEH +7.6 BW Sleeve 2.9 79 TEH +9.1 24 37 2.1 MRI TEH +2.5 BW Sleeve 34 37 1.6 SRI TEH +2.3 BW Sleeve 34 39 0.8 SAI TEH +5.5 BW Sleeve 6 40 1.6 SRI TEH +2.3 CE Sleeve 15 40 1.0 CRI TEH +2.2 CE Sleeve Table 4-A Page 55 of 73

e 0

R. G. & E. SG/A 93MAR Ginna Station REPAIRABLE INDICATIONS Row Col Volts Ind. 4TWD Indication Desc Location Repair 2 41 0.9 SRI TEH +2.3 BW Sleeve ll 41 0.9 SRI TEH +2.4 CE Sleeve 2 42 2.3 SRI TEH +2.3 BW Sleeve 23 42 1.3 CRI TEH +2 ' BW Sleeve 1.3 CRI TEH +2 '

31 42 0.8 71 TEH +2-7 CE Sleeve 0.6 64 TEH +4.6 32 42 1.0 SRI TEH +2.3 CE Sleeve 1 43 0.9 SAI TEH +5.0 CE Plug 4 43 4.5 SRI TEH +2.7 CE Sleeve 16 43 1.3 CRI TEH +2.3 BW Sleeve 1.3 CRI TEH +2.3 24 43 0.4 SRI TEH +2.3 CE Sleeve 28 44 0.7 SRI TEH +2.3 BW Sleeve 31 44 4.4 CRI TEH +2.3 CE Sleeve 32 44 0.7 SAI TEH +2.9 CE Sleeve 30 45 6.7 MRI TEH +2.7 CE Sleeve 17 46 2.1 CRI TEH +2.3 BW Sleeve 33 48 0.7 SAI TEH +4.4 CE Sleeve 17 50 2.7 MAI TEH +17.7 to +19.3 CE Plug 23 50 1.7 CRI TEH +2.3 BW Sleeve 25 50 0.7 SAI TEH +3.0 BW Sleeve 0.9 NQI TEH +3.0 32 50 1.4 SAI TEH +5. 0 CE Sleeve 0.9 SAI TEH +12.6 0.7 SAI TEH +13.4 Table 4-A Page 56 of 73

R. G. & E. SG/A 93MAR Ginna Station REPAIRABLE INDICATIONS Row Col Volts Ind. 4TWD Indication Desc Location Repair 25 51 3.9 ADI TEH +4.3 BW Sleeve 18 52 2.5 ADI TEH +19.2 CE Plug 2 53 0.8 CRI TEH +2.2 BW Sleeve 13 53 1.4 CRI TEH +2.2 BW Sleeve 23 53 1.3 CRI TEH +2.3 CE Sleeve 0.5 SAI TEH +4.1 28 53 0.6 97 TEH +4.5 CE Sleeve 26 54 3.8 CRI TEH +2.3 BW Sleeve

'26 56 l.6.92. SAI PTF TEH +16.0

+19.6 BW Exp.Plug TEH 26 58 3.0 CRI TEH +2.2 BW Sleeve 38 58 2.1 SRI TEH +2.4 BW Sleeve 18 62 3.5 MRI TEH +6.2 to +15.3 BW Sleeve 31 63 1.9 MRI TEH +2.4 BW Sleeve 1 64 0.5 SRI TEH +3.0 CE Plug 16 64 0.7 SRI TEH +2.5 BW Sleeve 24 67 1.0 SRI TEH +2.3 CE Sleeve 26 67 0.5 SRI TEH +2.2 CE Sleeve 35 67 1.0 SRI TEH +2.3 BW Sleeve 38 67 1.4 SRI TEH +2.3 BW Sleeve 3 68 1.3 SRI TEH +2.6 CE Sleeve 27 68 0.9 SRI TEH +2.1 CE Sleeve 2 69 0.6 SRI TEH +2.3 BW Sleeve 3 69 0.9 SRI TEH +3.2 CE Sleeve Table 4-A Page 57 of 73

R. G. & E. SG/A 93MAR Ginna Station REPAIRABLE INDICATIONS Row Col Volts Ind. 4TWD Indication Desc Location Repair 16 69 1' SRI TEH +2. 5 BW Sleeve 27 69 1.4 SRI TEH +2. 2 CE Sleeve 31 69 0.5 SRI TEH +2.3 BW Sleeve 38 69 0.8 SRI TEH +2.3 BW Sleeve 21 70 0.2 56 TEH +3.5 CE Sleeve 1.9 ADI TEH +4.6 17 72 3.8 CRI TEH +2.5 CE Sleeve 0.4 NQI TEH +3.9 13 73 1.2 SRI TEH +2.8 CE Sleeve 7 75 3.5 - SRI TEH +2.5 CE Sleeve 5 78 SRI TEH +2.6 CE Sleeve 8 78 0.7 SRI TEH +2.4 CE Sleeve 12 78 0.6 SAI TEH '2. 8 CE Sleeve 9 80 1.0 SRI TEH +2. 3 CE Sleeve 11 80 0.7 SAI +2.7 Sleeve 0.7 'AI TEH TEH +2.8 BW 20 80 3.4 ADI TEH +4. 0 BW Sleeve 14 82 1.4 SRI TEH +2. 4 BW Sleeve 7 83 5.6 SRI TEH +2. 4 BW Sleeve 12 84 5.4 MRI TEH +1. 8 BW Sleeve Number of Tubes: 121 Number of Indications: 149 Table 4-A Page 58 of 73

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COL 18 28 38 15: installed in 1993o CE Plugs Rochester Gas 5 Electric Corp.

C: 8: CE Sleeves Ginna Nuclear Pouer Station B: 187: B&W Sleeves S~G - B 84/88~93 1: CE Welded Slv.plug Inlet D: 48: peplugged Tubes (2 plugs, 46 sleeves)

FIGURE 3 ACRZ ISIS Tubes

R. G. 6 E. sg/B 93MAR GINNA STATION REPAIRABLE INDICATIONS Row Col Volts Ind. %TWD Indication Desc Location Repair 9 2 1.0 SRI TEH +2.7 CE Plug 12 5 2.0 MBI TEH +0.6 CE Plug 2.7 ADI TEH +4.8 3 8 1.3 SAI TEH +4.5 BW Sleeve 4 10 0.6 SAI TEH +4.1 BW Sleeve 1.2 SAI TEH +5.1 29 12 1.3 SRI TEH +3.1 CE Plug 2 13 0.3 MAI TEH +3.5 to +5.3 BW Sleeve 1.9 ADI TEH +4.9 6 13 0.5 SAI TEH +8.0 BW Sleeve 21 15 DPT BW Sleeve 29 15 DPT BW Sleeve 21 16 DPT BW Sleeve 24 16 DPT BW Sleeve 15 17 0.5 SAI TEH +3.3 BW Sleeve 32 17 0.7 SRI TEH +2.5 CE Plug 16 18 0.9 MAI TEH +3.7 to +5.0 BW Sleeve 26 18 2.0 SRI TEH +2.2 BW Sleeve 22 19 2.0 SRI TEH +2.3 BW Sleeve 25 19 1.0 MRI TEH +1.9 BW Sleeve 26 19 MRI TEH +2.2 BW Sleeve 24 20 0.4 72 TEH +5.1 BW Sleeve 27 21 2.0 CRI TEH +2.5 BW Sleeve 30 21 DPT BW Sleeve 11 22 0.6 MAI TEH +4.6 BW Sleeve Table 4-B Page 60 of 73

R. G. & E. sg/B 93MAR GINNA STATION REPAIRABLE INDICATIONS Row Col Volts Ind. %TWD Indication Desc Location Repair 30 22 DPT BW Sleeve 11 24 0.8 SAI TEH +2.8 BW Sleeve 14 24 0.5 87 TEH +4.3 BW Sleeve 24 25 0.8 ADI TEH +4.7 BW Sleeve 31 25 DPT BW Sleeve 38 25 DPT BW Sleeve ll 26 1.2 SRI TEH +2.2 BW Sleeve 13 26 1.6 SAI TEH +11.8 BW Sleeve 1 27 3.2 SAI TEH +3.2 CE Plug 13 27 MAI TEH +4.8 BW Sleeve 10 28 1.3 ADI TEH +6.4 BW Sleeve 16 28 3.5 SRI TEH +2.6 BW Sleeve 31 28 2.1 SRI TEH +2.6 BW Sleeve 1 29 4.9 MAI TEH +3.2 CE Plug 0.8 75 TEH +3.3 11 30 0.9 ADI =

TEH +5.5 BW Sleeve 29'I 30 2.3 SRI TEH +2.5 BW Sleeve 33 30 1.3 SAI TEH +3.4 BW Sleeve 0.3 86 TEH +4.5 31 33 1.5 SRI TEH +2.7 BW Sleeve 25 34 0.6 SAI TEH +6.9 BW Sleeve 0.9 SAI TEH +13.4

38. 34 1.7 SRI TEH +2.7 BW Sleeve 22 35 1.6 SRI TEH +2.6 BW Sleeve Table 4-B Page 61 of 73

R. G. & E. sg/B 9'3MAR GINNA STATION REPAIRABLE INDICATIONS Row Col Volts Ind. %TWD Indication Desc Location Repair 38 35 1.7 81 TEH +3. 2 BW Sleeve 3.0 SAI TEH +3. 6 41 35 1.0 SRI TEH +2.7 BW Sleeve 8 36 MAI TEH +3.4 to +7.5 BW Sleeve 28 36 DPT BW Sleeve 40 36 DPT BW Sleeve 28 37 0.2 83 TEH +5.0 CE Plug 3.2 PTF TEH +17.6 30 37 0.2 NQI TEH +16.6 BW Sleeve 34 37 2.2 MAI TEH +3.1 BW Sleeve 0.7 ADI TEH +4.0 35 37 DPT BW Sleeve 36 37 DPT BW Sleeve 38 37 0.8 SRI TEH +2.7 BW Sleeve 41 37 0.8 SAI TEH +3.4 BW Sleeve 28 38 0.3 ADI TEH +4.7 BW Sleeve 35 38 DPT BW Sleeve 37 38 1.9 MAI TEH +3.0 to +3.9 BW Sleeve 38 38 DPT BW Sleeve 39 39 DPT BW Sleeve 40 39 DPT BW Sleeve 39 40 DPT BW Sleeve 40 40 DPT BW Sleeve 12 41 1.0 MAI TEH +3. 5 BW Sleeve 23 42 0.7 SAI TEH +4.9 to +6.3 CE Plug.

0.7 SAI TEH +16.6 to +18.0 Table 4-B Page 62 of 73

R. G. & E. sg/B 93MAR GINNA STATION REPAIRABLE INDICATIONS Row Col Volts Ind. %TWD Indication Desc Location Repair 29 42 0.7 MAI TEH +8.2 to +17.2 CE Plug 27 43 0.3 NQI TEH +6.1 BW Sleeve 29 43 0.7 SAI TEH +5.6 BW Sleeve 1.4 SAI TEH +7.2 to +8.1 1.9 SAI TEH +9.2 to +11.8 37 43 0.5 MAI TEH +5.6 BW Sleeve 39 43 DPT BW Sleeve 1 44 0.9 ADI TEH +11.6 CE Plug 2 44 0.5 MAI TEH +3.0 to +7.3 BW Sleeve 8 44 1.0 MAI TEH +3.3 to +9.3 BW Sleeve 1.0 MAI TEH +3.3 to +9.3 13 44 4.1 ADI TEH +7.5 BW Sleeve 1.8 ADI TEH +9.2 31 44 SAI TEH +3.9 BW Sleeve 2 45 1.4 MAI TEH +3.6 to +7.8 BW Sleeve 9 45 0.9 SAI TEH +6.4 BW Sleeve 30 45 0.7 MAI TEH +3.0 to +4.8 BW Sleeve 33 45 1.0 MAI TEH +3.2 BW Sleeve 39 45 DPT BW Sleeve 2 46 MAI TEH +2.9 to +7.4 BW Sleeve 7 46 ADI TEH +10 ' BW Sleeve 8 46 0.2 MAI TEH +5.5 to +8.8 BW Sleeve 0.5 ADI TEH +9.0 38 46 DPT BW Sleeve 41 46 DPT BW Sleeve 1 47 1.2 SAI TEH +3.2 CE Plug Table 4-B Page 63 of 73

R. G. & '. sg/B 93MAR GINNA STATION REPAIRABLE INDICATIONS Row Col Volts Ind. :TWD Indication Desc Location Repair 4 47 1.8 SAI TEH +9. 0 BW Sleeve 5 47 1.0 SAI TEH +5.1 BW Sleeve 0.3 47 TEH +5.1 34 47 0.4 SAI TEH +3.2 BW, Sleeve 41 47 DPT BW Sleeve 4 48 MAI TEH +7.4 to +5.9 BW Sleeve 7 49 SAI TEH +2.8 BW Sleeve 10 49 0.2 MAI TEH +4.4 BW Sleeve 12 49 0.4 MAI TEH +4.7 to +5.8 BW Sleeve 41 49 DPT BW Sleeve 14 50 0.4 MAI TEH +3.8 BW Sleeve 32 50 0.6 MAI TEH +4.4 BW Sleeve 33 50 0.6 MAI TEH +3.8 BW Sleeve 34 50 0.6 MAI TEH +3.6 to +4.6 BW Sleeve 1.8 ADI TEH +5.3 0.9 ADI TEH +7.9 37 50 DPT BW Sleeve 0.9 70 TSH -15.4 2.0 70 TSH -13.9 4 51 0.5 SAI TEH +3. 2 BW Sleeve 20 51 0.9 SAI TEH +3. 6 BW Sleeve 25 52 0.6 MAI TEH +3. 2 BW Sleeve 11 53 0.5 SAI TEH +6.9 to +8.5 BW Sleeve 23 54 0.5 MAI TEH +18.4 to +19.5 CE Plug 25 54 0.4 90 TEH +7.9 BW Sleeve 29 54 1.9 ADI TEH +6. 4 BW Sleeve Table 4-B Page 64 of 73

R. G. & E. sg/B 93MAR GINNA STATION REPAIRABLE INDICATIONS Row Col Volts Ind. 4TWD Indication Desc Location Repair 13 56 0.6 SAI TEH +5.7 BW Sleeve 27 56, 1.0 SRI TEH +2.6 BW Sleeve 35 56 DPT BW Sleeve 36 57 DPT BW Sleeve 42 57 DPT BW Sleeve 2 58 0.5 SAI TEH +5.1 BW Sleeve 7 58 1.0 ADI TEH +7.8 BW Sleeve 27 58 0.7 SAI TEH +8.4 BW Sleeve 38 58 DPT BW Sleeve 38 59 DPT BW Sleeve 38 60 DPT BW Sleeve 40 60 DPT BW Sleeve 18 61 0.7 MAI TEH +12.5 BW Sleeve 19 61 0.9 MAI TEH +9.7 BW Sleeve 12 62 2.5 ADI TEH +7.6 BW Sleeve 38 62 DPT BW Sleeve 10 63 1.0 SAI TEH +6.0 BW Sleeve 34 63 DPT BW Sleeve 2 64 0.3 MAI TEH +4. 7 BW Sleeve 0.6 MAI TEH +9. 1 to +9. 9 14 64 0.4 TEH +5. 2 BW Sleeve 36 64 DPT BW Sleeve 11 65 0.6 MAI TEH +5.2 to +5.7 BW Sleeve 30 65 1-2 CRI TEH +2. 4 BW Sleeve Table 4-B Page 65 of 73

R. G. & E. sg/B 93MAR GINNA STATION REPAIRABLE INDICATIONS Row Col Volts Ind. :TWD Indication Desc Location Repair 36 65 DPT BW Sleeve 30 66 0.9 SAI TEH +9.6 BW Sleeve 1 67 2.3 ADI TEH +4.1 CE Plug 33 67 DPT BW Sleeve 23 68 0.7 SAI TEH +4.3 BW Sleeve 27 68 0.4 SRI TEH +3.2 BW Sleeve 7 69 0.6 MAI TEH +5.4 BW Sleeve 21 69 0.4 SAI TEH +14.6 BW Sleeve 27 69, 0.4 77 TEH +3.8 BW Sleeve 0.3 86 TEH +4.6 32 69 DPT BW Sleeve 34 69 1.0 SAI TEH +2.7 BW Sleeve 4.2 ADI TEH +3.4 19 70 0.8 MAI TEH +3.2 BW Sleeve 24 71 0.8 MAI TEH +3.6 BW Sleeve 0.4 83 TEH +4.6 28 71 0.4 SAI TEH +4.4 BW Sleeve 30 71 DPT BW Sleeve 14 72 1.4 .ADI TEH +4.5 BW Sleeve 20 72 1.6 ADI TEH +12.2 BW Sleeve 26 72 DPT BW Sleeve 1 73 0.4 92 TEH +3.9 CE Plug 18 73 0.3 NQI TEH +4.8 BW Sleeve 21 73 0.9 ADI TEH +18.4 CE Plug 6 74 1.9 ADI TEH +4.4 BW Sleeve Table 4-B Page 66 of 73

R. G. 6 E. sg/B 93MAR GINNA STATION REPAIRABLE INDICATIONS Row Col Volts Ind. 4TWD Indication Desc Location Repair 8 74 2.9 ADI TEH +5.7 BW Sleeve 27 75 DPT BW Sleeve 7 76 0.3 SAI TEH +2.9 BW Sleeve 20 76 0.3 SAI TEH +3.7 BW Sleeve 24 76 0.2 SAI TEH +2.8 BW Sleeve 12 77 0.2 SAI TEH +4.0 BW Sleeve 27 77 DPT BW Sleeve 28 77 DPT BW Sleeve 21 79 0.3 SAI TEH +3.2 BW Sleeve 10 80 0.8 MAI TEH +4.8 BW Sleeve 22 80 DPT BW Sleeve 8 81 0.5 SAI TEH +3.5 BW Sleeve 13 81 0.3 SAI TEH +2.8 BW Sleeve 22 81 DPT CE Plug 14 85 DPT BW Sleeve 13 86 DPT BW Sleeve 12 87 13.5 MBI TEH +0. 3 CE Plug 0.9 SAI TEH +3. 0 7 88 0.8 75 TEH +3. 0 BW Sleeve 2.4 MAI TEH +3.4 1.5 94 TEH +3.8 8 90 DPT CE Plug 1.0 NQI TSH -7.3 Number of Tubes: 171 Number of Indications: 199 Table 4-B Page 67 of 73

GINNA STATION STEAM GENERATOR TUBE INSPECTION AND CORRECTIVE ACTION HISTORY TOTALTUBES REQUIRING )4(Pj6 NO.PLUGGED CORRECTIVE TYPE OF REQUIRED NO. TUBES NO. TUBES RETURNED NO. SLEEVES NO. PULLED TOTAL(NEl) TOTAL(NET)

DATE NO. TUBES INSPECTED ACTION DEGRADATION REPAIRS PLUGGED SLEEVED TO SERVICE PLUGGED TUBES PLUGGED SLEEVED COMMENTS A B A B A B A B A B A B A B A B A B A B HOT COLD HOT COLD IN FACTORY 1 0 1 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 APR 1972 1050 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 MAR 1974 ., .3259. 516 1098 516 19 0 WASTAGE 19 0 19 0 0 0 0 0 0 0 2 0 19 0 0 0 NOV 1974 1701 430 672 39 2 0 WASTAGE 2 0 2 0 0 0 0 0 0 0 0 0 2 0 0 0 MAR 1975 2174 442 1931 442 46 11 CRACKING/WASTAGE 46 11 46 11 0 0 0 0 0 0 2 0 46 11 0 0 JAN 1976 0 0 53 0 0 2 WASTAGE 0 2 0 2 0 0 0 0 0 0 0 0 0 2 0 0 FEB 1976 3192 3192 3247 3247 39 2 WASTAGE 39 2 39 2 0 0 0 0 0 0 0 0 39 2 0 0 APR 1976 100 0 1025 75 0 15 CRACKING 0 15 0 15 0 0 0 0 0 0 0 0 0 15 0 0 APR 1977 2003 268 1525 268 13 2 WASTAGE 13 1 13 1 0 0 0 0 0 0 0 0 13 1 0 0 JUL 1977 300 0 6 ID CRACKING 0 5 0 5 0 0 0 0 0 0 0 0 0 5 0 0 JAN 1978 0 8 CRACKING/WASTAGE 0 8 0 8 0 0 0 0 0 0 0 0 0 8 0 0 APR 1978 2049 325 1714 375 1 15 ID CRACKING 1 15 1 15 0 0 0 0 0 0 0 1 1 15 0 0 FEB 1979 2049 325 1714 375 0 6 CRACKING/WAS/IGA 0 6 0 6 0 0 0 0 0 0 0 0 0 6 0 0 DEC 1979 0 13 IGA/WASTAGE 0 13 0 13 0 0 0 0 0 0 0 0 0 13 0 0 APR 1980 3139 325 3182 375 1 31 'A'PITTING/"B IGA 1 13 1 34 0 0 0 0 0 0 0 3 1 34 0 0 NOV 1980 3138 325 3151 375 0 0 IGA 0 2 0 0 0 5 0 0 0 0 0 0 0 0 0 5 MAY 1981 3138 325 3141 400 0 4 IGA/WASTAGE 0 6 0 4 0 16 0 0 0 0 0 3 0 4 0 16 FEB 1982 3137 526 "3140 526 0 18 IGA/MECH.DAM 0 16 0 18 0 0 0 0 0 0 0 1 0 18 0 0 8EP 1982 3138 382 3129 893 1 33 IGA 1 28 1 33 0 0 0 0 0 0 0 0 1 33 0 0 APR 1983 3137 633 3096 832 4 4 IGA/SCC 0 23 0 3 4 74 0 0 0 1 0 1 0 4 4 73 MAR 1984 3137 717 3093 963 1 1 IGA/SCC 0 5 1 1 0 9 0 0 0 1 0 0 1 2 0 8 MAR 1985 3135 3135 3087 3087 3 4 IGA/SCC/WASTAGE 3 70 2 4 2 67 0 0 0 0 0 0 2 4 2 67 6 FEB 1986 3134 623 3083 770 6 27 . IGA/SCC/WASTAGE 2 49 0 27 6 30 0 3 0 0 0 0 0 24 6 33 7 FEB 1987 3128 0 2884 0 34 73 IGA/SCC 17 78 10 72 24 80 0 0 0 3 0 0 10 75 24 77 8 FEB 1988 3122 1517 2723 1301 7 41 IGA/SCC 4 18 14 58 0 0 0 0 1 1 0 0 15 59 -1 -1 9 MAR 1988 0 0 208 0 0 9 IGA/SCC 0 6 0 8 0 0 0 0 0 1 0 0 0 9 0 -1 10 MAR 1989 3128 1668 2805 1486 177 445 IGA/SCC/PWSCC/WAS 21 142 36 73 132 306 17 82 4 5 0 0 22 137 365 11 MAR 1990 2949 663 2437 653 75 211 IGA/SCC/PWSCC/WAS 18 70 22 20 56 163 0 28 5 1 2 0 24 -8 51 190 12 APR 1991 2945 1093 2359 1092 116 117 IGA/SCC/PWSCC/WAS 27 52 12 7 81 93 22 15 1 2 1 0 9 102 107 13 APR 1992 2748 757 1998 706 244 218 IGA/SCC/PWSCC/WAS 5 16 14 20 214 173 16 29 0 7 0 0 .2 -10 230 195 14 MAR 1993 2520 894 1813 723 122 123 IGA/SCC/PWSCC 7 14 9 18 114 154 0 46 1 1 0 0 9 -29 113 199 15 912 1439 243 478 633 1170 55 203 12 23 7 9 194 284 668 1333

• Returned to Setvice M. J. Davison without Sleeve 19-APR-93 A=8 B=18 TABLE 5 Rev. 1

STEAM GENERATOR TUBE INSPECTION AND CORRECTIVE ACTION HISTORY COMMENTS (from TABLE 5)

(1) Pulled R15 C55 and R17 C41 from the hot leg and R17 C40 from the cold leg to determine IGA conditions in the "B" steam generator. R17 C41 and ECT indications at all frequencies, R15 C44 had only'00 kHz, Absolute ECT indication and R17 C40 had no ECT indication.

Both hot leg tubes had approximately 50% IGA, R17 C41 had a 60% SCC indication associated with the IGA.

(2) Manually sleeved 5 tubes with nickel plated Inconel 600 thermally treated sleeves. Three tubes had IGA indications, two others were preventatively sleeved.

(3) Sleeved 16 tubes with co-extruded sleeves, 13 with defects and 3 preventatively, Pulled Hot Leg tubes R21 C46 with a 100 kHz ECT indication, R7 C45 and R28 C45 which were clean tubes.

(4) Recovery from the January 25, 1982 Tube Rupture Event including removing 26 tube sections by EDM and ID cutters along with the one tube pulled from the secondary side.

(5) The four tubes identified with IGA in the "A" steam generator were sleeved with 22" tubesheet sleeves. The 78 tubes identilied in the "8" stcam generator with IGA and/or SCC in the crevice were repaired as follows:

41 tubes were sleeved with 36" brand sleeves 9 tubes were sleeved with 28" bralxd sleeves 24 tubes were sleeved with 22" tubcshect sleeves 1 tube and 2 sleeves were plugged 1 tube R34 C54 was pulled for metallurgical analysis (6) 'he two tubes identified with IGA in the crevice in the "A" steam generator inlet were sleeved with 20" tuhesheet sleeve. One indication )40% TWD in the U-bend was permanently plugged. The 70 tubes identified in the "B" steiim generator were repaired as follows:

56 tubes were sleeved with 20" tubesheet sleeves 10 tuhes were sleeved with 36" brar~d sleeves 3 tubes were mechanically plugged (CE removable) 1 tube was explosively plugged 1 tube was sleeved with a 36" brazed sleevi'. due tn the domino effect.

Page 69 of 73

(7) The five tubes identified vvith crevice indications in the "A" steam generator inlet were sleeved with 27" Combustion Engineering (CE) Sleeves. One tube identified with an O.D.

general indication above the secondary side tubesheet was also sleeved with a 27" CE sleeve.

The 57 tubes identified in the "B" steam generator were repaired as follows:

27 tubes were sleeved with 27" CE sleeves 27 tubes were mechanically plugged (CE removable) 3 CE Mechanical Plugs installed in 1985 were removed and sleeved with 27" sleeves The present sleeve installation status is 83 brazed sleeves, 88 tube sheet sleeves, 30 welded CE sleeves in the "B" steam generator with 6 tubesheet sleeves and 6 welded CE sleeves in the "A" steam generator.

(8) The 34 tubes identified with crevice indications in the "A" steam generator inlet were repaired as follows:

10 tubes were mechanically plugged (CE removable) 24 tubes were sleeved with 27" CE welded sleeve The 153 tubes identified with crevice indications in the "B" steam generator inlet were repaired as follows:

72 tubes were rnechanicalfy plugged (CE removable) 80 tubes were sleeved with 27" CE welded sleeves I CE welded sleeve (installed in 1987) was plugged with a CE welded sleeve plug due to rejection of upper weld, Other repairs required in the "B" steam generator are as follows:

BAW test brazed sleeves (installed in 1980) were plugged due to the loss of the primary to secondary pressure boundary as detected by the Hydro Test.

Westinghouse explosive plugs installed prior to 1987 were removed due to leakage and replaced with CE welded plugs.

CE Mechanical Plug on the cold leg was removed and replaced with a CE Mechanical Plug.

CE welded sleeves (installed in 1987), are considered as "leak limiting" due to the marginal acceptance of'he upper welds.

Page 70 of 73

(9) In the "A" steam generator, 15 tubes were plugged as follows:

tubes had tubesheet crevice indications tubes for no confirmed AVB support CE sleeve for unverified upper expansion In "B" steam generator, 61 tubes were plugged as follows:

39 tubes had tubesheet crevice indications 2 tubes were misplugged in the hot leg during 1987 outage 8 tubes to box existing plugs were AVB support could not be verified.

10 tubes for no confirmed AVB support 1 tube for flow peaking consideration due to AVB placement 8 Westinghouse Explosive Plugs were removed and replaced with welded "Top Hat" Plugs (10) The "B" steam generator had 9 tubes plugged for the following remons:

tubes had tuhmheet crevice indications identified by a review of'the February data. These were removed f'rom service with CE mechanical plugs.

tubes had signal changes from February to March., The tubes were removed from service with CE mechanical plugs.

BAW tubesheet sleeve identified by the hydrostatic pressure test was removed from service with a B&W explosive plug in the hot leg and a CE mechanical in the cold leg.

(11) A total of 177 tubes in "A" ste;un generator were repaired in 1989 as follows:

137 CE 27" welded sleeves (straight and periphery) 40 Tube and/or sleeve plugs 2 Previously plugged tubes stabililxd (not counted as repaired)

A total of 445 tubes were repaired in "B" steam generator were repaired as follows:

367 CE 27" avelded sleeves (straight and periphery) 78 Tubes and/or sleeve plugs 1 Previously plugged tube stabilized (not counted as repaired)

Page 71 of 73

(12) A total of 75 tubes in "A" steam generator were repaired in 1990 as follows:

51 CE 27" welded sleeves (straight and periphery) 24 Tube and/or sleeve plugs (includes pulled tubes R25-C63 and R31-C66)

A total of 211 tubes in "B" steam generator were repaired as follows:

191 CE 27" welded sleeves (straight and periphery) including 28 deplugged tubes 20 Tubes and/or sleeve plugs (includes B&W tubesheet sleeve noted during hydro)

(13) A total of 116 tubes, including 24 deplugged tubes, in "A" steam generator were repaired in 1991 as follovvs:

61 CE 27" welded sleeves (straight and periphery) 41 CE 30" welded sleeves (straight) 14 Tube and/or sleeve plugs (includes pulled tube R45-C52 and deplugged tubes R17-C52 and R16-C48)

A total of 117 tubes, including 16 deplugged tubes, in "B" steam generator were repaired as follows:

80 CE 27" welded sleeves (straight and periphery) 28 CE 30" welded sleeves (straight) 9 Tube and/or sleeve plugs (includes sleeved tube R5-C37, deplugged tube R26-C56 and 2 B&W Explosive plug repairs)

(14) A total of 244 tubes, including 16 deplugged tubes, in "A" steam generator were repaired in 1992 as follovvs:

36 CE 27" welded sleeves (straight) 194 B&W explosively welded tubesheet sleeves 14 Tube and/or sleeve plugs (including two tubes stabilized R12-C11 and R13-C11)

A total of 218 tubes, including 30 deplugged tubes, in "B" steam generator were repaired as follovvs:

186 CE 27" welded sleeves (straight and periphery) 9 CE 30" welded sleeves (straight) 23 Tube and/or sleeve plugs (includes two tubes stabilized R11-C46 and R13-C89, deplugged tube R33-C75 and 3 8&W Explosive plug repairs)

Page 72 of 73

A total of 122 tubes in "A" steam generator were repaired in 1993 as follows:

51 CE 27" welded sleeves (straight) 62 B&W explosively welded tubesheet sleeves 6 CE mechanical tube plugs 1 B&W explosively welded sleeve plug 2 CE welded tube plugs A total of 171 tube, including 48 deplugged tubes, in "B" syeam generator were repaired as follows:

153 B&W explosively welded tubesheet sleeves (includes 46 de-plugged tubes) 1 CE welded sleeve plug 17 CE mechanical tube plug (include 2 de-plugged tubes)

Page 73 of 73

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