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 C 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 DOCUMENTDISTIUBUTION SYSTEMREGULA2YINFORMATION DISTRIBUTICSYSTEM (RIDE)ACCESSION NBR:9307280203 DOC.DATE:

93/07/20NOTARIZED:

NODOCKETFAIL:50-244 RobertEmmetGinnaNuclearPlant,Unit1,Rochester G05000244AUTH.NAMEAUTHORAFFILIATION MECREDY,R.C.

Rochester Gas6ElectricCorp.RECIP.NAME RECIPIENT AFFILIATION DocumentControlBranch(Document ControlDesk)

SUBJECT:

ForwardsLER93-003-00 rediscovered failuresofSafeguard svcwatersysvalvesduringplannedmaintenance.

DISTRIBUTION CODE:IE22DCOPIESRECEIVED:LTR JENCLQSIZE:l+7TITLE:50.73/50.9 LicenseeEventReport(LER),incidentRpt,etc.DNOTES:License Expdateinaccordance with10CFR2,2.109(9/19/72).

05000244IRECIPIENT IDCODE/NAME PD1-3LAJOHNSON,A INTERNAL:

ACNWAEOD/DSP/TPAB NRR/DE/EELB NRR/DORS/OEAB NRR/DRCH/HICB NRR/DRIL/RPEB NKtQDSS-SPLB02RGN1FILE01EXTERNAL:

EGSGBRYCE,J.H NRCPDRNSICPOOREFW.COPIESLTTRENCL1111RECIPIENT IDCODE/NAME PD1-3PDAEOD/DOAAEOD/ROAB/DSP NRR/DE/EMEB NRR/DRCH/HHFB NRR/DRCH/HOLB NRR/DRSS/PRPB NRR/DSSA/SRXB RES/DSIR/EIB LSTLOBBYWARDNSICMURPHYFG.A NUDOCSFULLTXTCOPIESLTTRENCL111122111111221111111111DDNOTETOALL"RIDS"RECIPIENTS:

PLEASEHELPUSTOREDUCEWASTE!CONTACI'HE DOCUMENTCONTROLDESK,ROOMPl-37(EXT.504-2065)

TOELIMINATE YOURNAMEFROMDISTRIBUTION LISTSFORDOCUMENTS YOUDON'TNEEDlDTOTALNUMBEROFCOPIESREQUIRED:

LTTR30ENCL30

IIROCHESTER GASANDELECTRICCORPORATION

~~~~44~~4rrtei'.,Totetea'rc89EASTAVENUE,ROCHESTER N.Y.14649.0001 ROBERTC.MECREOYVicePrerldent CinnaNuclearProduction TELEPHONE AREACODE7165462700July20,1993U.S.NuclearRegulatory Commission DocumentControlDeskWashington, DC20555

Subject:

LER93-003,DuringPlannedMaintenance, FailuresofSafeguard ServiceWaterSystemValvesWereDiscovered.

R.E.GinnaNuclearPowerPlantDocketNo.50-244Theseeventsarebeingvoluntarily reportedusingtheguidanceofNUREG-1022 (Licensee EventReportSystem),andSupplement 1toNUREG-1022.

Whilethesafetysignificance ofthesespecificeventsdoesnotrequiresubmittal ofaLicenseeEventReport,thesetypesofdegradation couldbesafety-significant atotherplants,depending onthevalveapplication.

Thisreportisintendedtoalertotherutilities andtheNRCofproblemsinapplications wherecorrosion canoccurbetweenthevalvestemanddisk,inrawwaterapplications, andofthepotential fordegrada-tionofisolation capabilities duetovalvedeterioration.

Theseeventsarerelatedto,butdonotmeet,thereporting require-mentsof10CFR50.73,item(a)(2)(v) and(a)(2)(vi),

whichrequiresreporting ofconditions, "thatalonecouldhaveprevented thefulfillment ofthesafetyfunction",

butwhere,"individual component failuresneednotbereported".

TheattachedLicenseeEventReportLER93-003isherebyvoluntarily submitted.

Thiseventhasinnowayaffectedthepublic'shealthandsafety.xc4Vetrulyyours,C~RobertC.MecredyU.S.NuclearRegulatory Commission RegionI475Allendale RoadKingofPrussia,PA19406GinnaUSNRCSeniorResidentinspector 2800~;:9307280203 Tt30720PDRADDCK050002448PDR/pd'r'