ML17264A834

Informs of Intention to Change Reactor Coolant Pump Flywheel Insp Interval from Current 3-yr Interval to 10-yr Interval, Consistent w/WCAP-14535A

ML17264A834
Person / Time
Site:	Ginna
Issue date:	03/18/1997
From:	MECREDY R C ROCHESTER GAS & ELECTRIC CORP.
To:	VISSING G NRC (Affiliation Not Assigned), NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9703250218
Download: ML17264A834 (4)

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CATEGORY1

SUBJECT:

Informsofintentiontochangereactorcoolantpumpflywheelinspintervalfromcurrent3-yrintervalto10-yrinterval,consistentw/WCAP-14535A.DISTRIBUTIONCODE:A001DCOPIESRECEIVED:LTRiENCLQSIZE:TITLE:ORSubmittal:GeneralDistributionT05000244ENOTES:LicenseExpdateinaccordancewith10CFR2,2.109(9/19/72).REGULATOINFORMATIONDISTRIBUTIONTEM(RIDS)IACCESSIONNBR:9703250218DOC.'DATE:97/03/18NOTARIZED:NODOCKETFACIAL:50-,244RobertEmmetGinnaNuclearPlant,Unit1,RochesterG05000244AUTH.NAMEAUTHORAFFILIATIONMECREDY,R.C.RochesterGas!'lectricCorp.RECIP.NAMERECIPIENTAFFILIATIONVISSING,G.INTERNALRECIPIENTIDCODE/NAMEPD1-1LAVISSING,G.CENTE0NRR'E/EMCBNRR/DSSA/SPLBNUDOCS-ABSTRACTCOPIESLTTRENCLRECIPIENTIDCODE/NAMEPDl-1PDNRR/DE/ECGB/ANRR/DRCH/HICBNRR/DSSA/SRXBOGC/HDS3COP1ESLTTRENCLEXTERNAL:NOAC11NRCPDRDENOTETOALL"RIDS"RECIPIENTS:PLEASEHELPUSTOREDUCEWASTE!CONTACTTHEDOCUMENTCONTROLDESK,ROOMOWFN5D-5(EXT.415-2083)TOELIMINATEYOURNAMEFROMDISTRIBUTIONLISTSFORDOCUMENTSYOUDON'TNEED!TOTALNUMBEROFCOPIESREQUIRED:LTTR13ENCL ANDROCHESTERGASANDELECTRICCORK)RATION~89EASTAYENUE,ROCHESTERN.YIdiW9-0001AREACODE716Sd6-2700ROBERTC.MECREDYVicePresidentNvdearOperationsMarch18,1997U.S.NuclearRegulatoryCommissionDocumentControlDeskAttn:GuyVissingProjectDirectorateI-1Washington,D.C.20555

Subject:

ReactorCoolantPumpFlywheelInspectionIntervalChangeR.E.GinnaNuclearPowerPlantDocketNo.50-244Ref.:WCAP-14535A,"TopicalReportonReactorCoolantPumpFlywheelInspectionElimination,"datedNovember,1996

DearMr.Vissing:

ThepurposeofthisletteristoinformtheNRCthatRochesterGasandElectric(RG&E)intendstochangeourreactorcoolantpump(RCP)flywheelinspectionintervalfromthecurrent3-yearintervaltoa10-yearinterval.ThischangeisconsistentwiththerationalediscussedinthereferencedWCAP(andtheincludedNRCSafetyEvaluationReport)asbeinginaccordancewiththecriteriaofRegulatoryGuide1.14.TheinspectionwillconsistofanUltrasonic(UT)examinationoverthevolumefromtheinnerboretothecircleofone-halftheouterradiusorasurfaceexamination(UT/PT)ofexposedsurfacesdefinedbythevolumeofthedisassembledflywheelasdeterminedatthetimeofinspection.Baseduponcurrentplantschedules,the>>A>>RCPflywheelwillbeinspectedinthe2003plantrefuelingoutageandthe>>B>>RCPflywheelwillbeinspectedinthe2005plantrefuelingoutage.Insupportofthischange,asrequestedintheNRC'sSER,RG&Ehasverified,throughcorrespondencewiththeNSSvendor,thattheGinnaRCPflywheelsaremadeofSA533Bmaterials.Verytrulyyours,RobertC.MecredyREJ/45197OSaSoaaS97OSX87PDRADQCK05000244Ž"PDRIIllllllll1llll[llllljIlllllllllfl1HIIHlllll xc.'r.GuyVissing(MailStop14B2)ProjectDirectorateI-1Washington,D.C.20555U.S.NuclearRegulatoryCommissionRegionI475AllendaleRoadKingofPrussia,PA19406GinnaSeniorResidentInspector CiCy