ML17263A327

Forwards LER 93-003-00 Re Discovered Failures of Safeguard Svc Water Sys Valves During Planned Maintenance

ML17263A327
Person / Time
Site:	Ginna
Issue date:	07/20/1993
From:	Mecredy R ROCHESTER GAS & ELECTRIC CORP.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML17263A329	List: ML17263A327 ML17263A330
References
NUDOCS 9307280203
Download: ML17263A327 (4)

Text

ACCEI.ERATED DOCUMENT DISTIUBUTION SYSTEM REGULA2Y INFORMATION DISTRIBUTICSYSTEM (RIDE)

ACCESSION NBR:9307280203 DOC.DATE: 93/07/20 NOTARIZED: NO DOCKET FA IL:50-244 Robert Emmet Ginna Nuclear Plant, Unit 1, Rochester G 05000244 AUTH. NAME AUTHOR AFFILIATION MECREDY,R.C. Rochester Gas 6 Electric Corp.

RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)

SUBJECT:

Forwards LER 93-003-00 re discovered failures of Safeguard svc water sys valves during planned maintenance.

DISTRIBUTION CODE: IE22D COPIES RECEIVED:LTR TITLE: 50.73/50.9 Licensee Event Report (LER), incidentQRpt, etc.

J ENCL SIZE: l+ 7 D NOTES:License Exp date in accordance with 10CFR2,2.109(9/19/72). 05000244 I

RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL PD1-3 LA 1 1 PD1-3 PD 1 1 JOHNSON,A 1 1 D

INTERNAL: ACNW AEOD/DOA 1 1 AEOD/DSP/TPAB AEOD/ROAB/DSP 2 2 NRR/DE/EELB NRR/DE/EMEB 1 1 NRR/DORS/OEAB NRR/DRCH/HHFB 1 1 NRR/DRCH/HICB NRR/DRCH/HOLB 1 1 NRR/DRIL/RPEB NRR/DRSS/PRPB 2 2 NKtQDSS - SPLB NRR/DSSA/SRXB 1 1 02 RES/DSIR/EIB 1 1 RGN1 FILE 01 EXTERNAL: EGSG BRYCE,J.H L ST LOBBY WARD 1 1 NRC PDR NSIC MURPHYFG.A 1 1 NSIC POOREFW. NUDOCS FULL TXT 1 1 D

D NOTE TO ALL"RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTE! CONTACI'HE DOCUMENT CONTROL DESK, ROOM Pl-37 (EXT. 504-2065) TO ELIMINATEYOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEEDl TOTAL NUMBER OF COPIES REQUIRED: LTTR 30 ENCL 30

~ ~ ~ 44 ~ ~ 4 rrte I

i '., Tote I tea'rc ROCHESTER GAS AND ELECTRIC CORPORATION ~ 89 EAST AVENUE, ROCHESTER N.Y. 14649.0001 ROBERT C. MECREOY TELEPHONE Vice Prerldent AREA CODE 716 546 2700 Cinna Nuclear Production July 20, 1993 U.S. Nuclear Regulatory Commission Document Control Desk Washington, DC 20555

Subject:

LER 93-003, During Planned Maintenance, Failures of Safeguard Service Water System Valves Were Discovered.

R.E. Ginna Nuclear Power Plant Docket No. 50-244 These events are being voluntarily reported using the guidance of NUREG-1022 (Licensee Event Report System), and Supplement 1 to NUREG-1022. While the safety significance of these specific events does not require submittal of a Licensee Event Report, these types of degradation could be safety-significant at other plants, depending on the valve application. This report is intended to alert other utilities and the NRC of problems in applications where corrosion can occur between the valve stem and disk, in raw water applications, and of the potential for degrada-tion of isolation capabilities due to valve deterioration. These events are related to, but do not meet, the reporting require-ments of 10 CFR 50.73, item (a)(2)(v) and (a)(2)(vi), which requires reporting of conditions, "that alone could have prevented the fulfillment of the safety function", but where, "individual component failures need not be reported". The attached Licensee Event Report LER 93-003 is hereby voluntarily submitted.

This event has in no way affected the public's health and safety.

Ve truly yours, C~

Robert C. Mecredy xc4 U.S. Nuclear Regulatory Commission Region I 475 Allendale Road King of Prussia, PA 19406 Ginna USNRC Senior Resident inspector 2800~;:

9307280203 Tt30720 PDR ADDCK 05000244 8 PDR

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