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.ERATEDDOCUMENTDISTIUBUTIONSYSTEMREGULA2YINFORMATIONDISTRIBUTICSYSTEM(RIDE)ACCESSIONNBR:9307280203DOC.DATE:93/07/20NOTARIZED:NODOCKETFAIL:50-244RobertEmmetGinnaNuclearPlant,Unit1,RochesterG05000244AUTH.NAMEAUTHORAFFILIATIONMECREDY,R.C.RochesterGas6ElectricCorp.RECIP.NAMERECIPIENTAFFILIATIONDocumentControlBranch(DocumentControlDesk)

SUBJECT:

ForwardsLER93-003-00rediscoveredfailuresofSafeguardsvcwatersysvalvesduringplannedmaintenance.DISTRIBUTIONCODE:IE22DCOPIESRECEIVED:LTRJENCLQSIZE:l+7TITLE:50.73/50.9LicenseeEventReport(LER),incidentRpt,etc.DNOTES:LicenseExpdateinaccordancewith10CFR2,2.109(9/19/72).05000244IRECIPIENTIDCODE/NAMEPD1-3LAJOHNSON,AINTERNAL:ACNWAEOD/DSP/TPABNRR/DE/EELBNRR/DORS/OEABNRR/DRCH/HICBNRR/DRIL/RPEBNKtQDSS-SPLB02RGN1FILE01EXTERNAL:EGSGBRYCE,J.HNRCPDRNSICPOOREFW.COPIESLTTRENCL1111RECIPIENTIDCODE/NAMEPD1-3PDAEOD/DOAAEOD/ROAB/DSPNRR/DE/EMEBNRR/DRCH/HHFBNRR/DRCH/HOLBNRR/DRSS/PRPBNRR/DSSA/SRXBRES/DSIR/EIBLSTLOBBYWARDNSICMURPHYFG.ANUDOCSFULLTXTCOPIESLTTRENCL111122111111221111111111DDNOTETOALL"RIDS"RECIPIENTS:PLEASEHELPUSTOREDUCEWASTE!CONTACI'HEDOCUMENTCONTROLDESK,ROOMPl-37(EXT.504-2065)TOELIMINATEYOURNAMEFROMDISTRIBUTIONLISTSFORDOCUMENTSYOUDON'TNEEDlDTOTALNUMBEROFCOPIESREQUIRED:LTTR30ENCL30

IIROCHESTERGASANDELECTRICCORPORATION~~~~44~~4rrtei'.,Totetea'rc89EASTAVENUE,ROCHESTERN.Y.14649.0001ROBERTC.MECREOYVicePrerldentCinnaNuclearProductionTELEPHONEAREACODE7165462700July20,1993U.S.NuclearRegulatoryCommissionDocumentControlDeskWashington,DC20555

Subject:

LER93-003,DuringPlannedMaintenance,FailuresofSafeguardServiceWaterSystemValvesWereDiscovered.R.E.GinnaNuclearPowerPlantDocketNo.50-244TheseeventsarebeingvoluntarilyreportedusingtheguidanceofNUREG-1022(LicenseeEventReportSystem),andSupplement1toNUREG-1022.WhilethesafetysignificanceofthesespecificeventsdoesnotrequiresubmittalofaLicenseeEventReport,thesetypesofdegradationcouldbesafety-significantatotherplants,dependingonthevalveapplication.ThisreportisintendedtoalertotherutilitiesandtheNRCofproblemsinapplicationswherecorrosioncanoccurbetweenthevalvestemanddisk,inrawwaterapplications,andofthepotentialfordegrada-tionofisolationcapabilitiesduetovalvedeterioration.Theseeventsarerelatedto,butdonotmeet,thereportingrequire-mentsof10CFR50.73,item(a)(2)(v)and(a)(2)(vi),whichrequiresreportingofconditions,"thatalonecouldhavepreventedthefulfillmentofthesafetyfunction",butwhere,"individualcomponentfailuresneednotbereported".TheattachedLicenseeEventReportLER93-003isherebyvoluntarilysubmitted.Thiseventhasinnowayaffectedthepublic'shealthandsafety.xc4Vetrulyyours,C~RobertC.MecredyU.S.NuclearRegulatoryCommissionRegionI475AllendaleRoadKingofPrussia,PA19406GinnaUSNRCSeniorResidentinspector2800~;:9307280203Tt30720PDRADDCK050002448PDR/pd'r'