ML17255A729
| ML17255A729 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 03/30/1984 |
| From: | Kober R ROCHESTER GAS & ELECTRIC CORP. |
| To: | Crutchfield D Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8404040056 | |
| Download: ML17255A729 (8) | |
Text
REGULATOR lFORMATION DISTRIBUTION 'S EM (RIDS)
ACCESSION NBRR8404040056 DOCDDATE: 84/03/30 NOTARIZEDj.NO DOCKET FACILg50 244 Robert Emmet Ginna Nuclear Planti Uni,t" ir Rochester G
05000244
'AUTH ~ NAME" AUTHOR AFFILIATION KOBERzR alta Rochester Gas L Electric Corp'ECIP
~ NAME~
RECIPIENT AFFILIATION CRUTCHF IELDi D ~
Operating Reactors Branch 5
SUBJECT:
Forwards details of scope of insp -program L insp results'-re steam generator tubeshe'et
~sleeve installation>
DISTRIBUTION CODE':
AOATS
.COPIES RECEIJEDILTR,Q ENCL
'IZE; TITLE:
OR. Submittal: Inservice Inspection/Testing NOTES;NRR/Dl /SEP icy, 05000244 RECIPIENT ID CODE/NAME:
NRR ORBS BC 01 COPIES LTTR ENCL 7
7 RECIPIENT ID CODE/NAME
'COPIES L'TTR ENCL INTERNALS ELD/HDS4 NRR/DE/MTEB 14 RGN1 EXTERNALS ACRS 16 NRC PDR 02 NTIS
'OTES:
1 0
1 1
1 10 10 1
1 1
1 1
15 ILE 04 03 05 1
1 1
1 TOTAL NUMBER OF COPIES REQUIRED!
LTTR 27 ENCL 26'
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1 / IWIIZIZ/ IIIIIIII Ltel 0 4 Ii* IZ7 (Z( iirsuIII ROCHESTER GAS AND ELECTRIC CORPORATION o 89 EAST AVENUE, ROCHESTER, N.K 14649-0001 ROGER W. KOBER VICE PRESIOENT ELECTRIC &STEAM PRODUCTION TL'LKPHONK AREA COOK Tld 546-2700 March 30, 1984 Director of Nuclear Reactor Regulation Attention: Mr. Dennis M. Crutchfield, Chief Operating Reactors Branch No. 5 U.S. Nuclear Regulatory Commission Washington, D.C. 20555
Subject:
Steam Generator Tubesheet Sleeves R. E. Ginna Nuclear Power Plant Docket No. 50-244
Dear Mr. Crutchfield:
By letter dated March 23, 1984 Rochester Gas and Electric requested approval to install not more than ten (10) additional tubesheet sleeves during the current outage. During subsequent conversations with members of the NRC Staff, additional information was reguested on the scope and results of the 1984 Steam Generator eddy current inspection program. Attached to this letter are details of the scope of the inspection program and the inspection results. truly yours, R er W. Kober ,8404040056 840330 PDR ADOCK 05000244 8 ~ 'PDR'L t
0 t If f
GINNA STATION 1984 Edd Current Ins ection Results A Steam Generator Tube 1. R17 C47 H.L. 27% OD Type of Sicinal IGA 19.6" ATE B Steam Generator Indications Above Plugging Criteria: 1. R42 C50 2. R32 C53 3. R28 C76 4. R26 C79 5. R18 C87 H. L. H.L ~ H ~ L. H ~ L. C ~ L. 85% OD 54% OD 85% ID 97% OD 53% OD SSC SSC SSC SSC Wastage 4 II 4 II 3'" 3 II Nl ATE ATE ATE ATE TSP Indications of Potential IGA (Absolute Channels Only) 1 ~ 2 ~ 3. 4 ~ 5. R20 C47 R32 C54 Rll C55 R36 C59 R36 C63 H.L ~ H ~ L. H.L. H. L. H.L ~ .85 .83 ,65 .87 1.00 volts* volts volts volts volts IGA IGA IGA IGA IGA 6-11" 4 8 ll 4-8" 4-8" 4-10 II ATE ATE ATE ATE ATE ATE Above Tube End TSP Tube Support Plate SSC Stress Corrosion Cracking IGA Intergranular Attack HL Hot Leg: CL Cold Leg
- Defect Not Sizeable
lf A c f a
1984 Edd Current Ins ection A Steam Generator Hot Le 100% Inspection) Number of Tubes 2926 44 2 165 1 3138* Su ort Plate No. A Steam Generator Cold Le 495 3 1 209 5 4 717 1 2 6 7 8 12
- Balance of tubes plugged or removed
1984 Edd Current Ins ection B Steam Generator Hot Le 100% Inspection Number of Tubes Su ort Plate No. 2912 80 3 2 12 178 3187* B Steam Generator Cold Le 665 7 2 217 4 1 67 963 1 2 6 7 8 11 12
- Balance of tubes plugged or removed}}