ML17251A498

Part 21 Rept Re Degradation to Pumping Ring from RHR Pumps Supplied by Pacific Pump,Inc & Mechanical Seal Supplied by Crane Packing Co.Conditon Technically Not 10CFR21 Reportable Due to 1978 Date of Occurrence

ML17251A498
Person / Time
Site:	Ginna
Issue date:	05/12/1989
From:	MECREDY R C ROCHESTER GAS & ELECTRIC CORP.
To:	MURLEY T E Office of Nuclear Reactor Regulation
References
REF-PT21-89, REF-PT21-89-079-000 PT21-89-079-000, PT21-89-79, NUDOCS 8905250264
Download: ML17251A498 (7)

Text

,.ACCELERATEDDlS'JBUTIONDEMONSTRATIONSYSTEM~'PDOCKET05000244REGULATORYINFORMATIONDISTRIBUTIONSYSTEM(RIDS)ACCESSIONNBR:8905250264DOC.DATE:89/05/12NOTARIZED:NOFACIL:50-244RobertEmmetGinnaNuclearPlant,Unit1,RochesterGAUTH.NAMEAUTHORAFFILIATIONMECREDY,R.C.RochesterGas&ElectricCorp.RECIP.NAME'ECIPIENTAFFILIATIONMURLEY.,T.E.OfficeofNuclearReactorRegulation,Director(Post870411R

SUBJECT:

Part21reptredefectconsistingofinterferencebetweenmechanicalsealpumpingring6pumpdischargehousing.jDISTRIBUTIONCODE:IEISDCOPIESRECEIVED:LTR2ENCL(SIZE:DTITLE:Part21Rept(50DKT)NOTES:LicenseExpdateinaccordancewith10CFR2,2.109(9/19/72).05000244SRECIPIENTIDCODE/NAMEPD1-3LAJOHNSON,AINTERNAL:AEOD/DOAIRMTECHADVNRRCRUTCHFIELDNRR/DEST/ADE8HNRR/DLPQ/PEB10NRR/DRIB9DR01RGN1RGN3RGN5EXTERNAL:INPORECORDCTRNRCPDRCOPIESLTTRENCL101111l."111111111111111111111RECIPIENTIDCODE/NAMEPD1-3PDAEOD/DSP/TPABIRM/DCTS/DABNRRVARGA,SNRR/DEST/ADS7ENRR/DOEA/GCB11NUDOCS-ABSTRACTRES/DSIR/EIBRGN2RGN4LPDRNSICSILVER,ECOPIESLTTRENCL11111111111111111111111.1RIShNOIR'IOALL"RIDS"RECZPIENIS~PLEASEHELPUSTOREDUCEHASTE!CONI'ACI'IHEDOCUMENI'XNIROLDESK,ROOMPl-37(EXT.20079)IOELIMINATERXlRNAMEFRCHDZSTRIK7XXONLTSTSFORDOCUMENTSYOUDON'THEZD9DSTOTALNUMBEROFCOPIESREQUIRED:LTTR26ENCL25 "Cg~znrrzzzn/'PIE//I//jfllPAINEROCHESTERGASANDELECTRICCORPORATIONo89EASTAVENUE,ROCHESTER,N.K146490001TCLCPHONFAncecooL7ie546.2700May12,1989Dr.ThomasE.Murley,DirectorOfficeofNuclearReactorRegulationU.S.NuclearRegulatoryCommission8'ashington,DC20555

Subject:

Notificat'ionof10CFRPart'1R.E.GinnaNuclearPowerStationDocketNo.50-244LicenseeNo.DPR-18

DearMr.Murley:

RochesterGasandElectricissubmittingtheattached10CFRPart21EvaluationandNotification.Thenotificationconcernsadefectindesignoftwo(2)ResidualHeatRemovalPumpssuppliedbyPacificPump,Inc.ofLosAngeles,CA.Thedefectconsistofaninterferencebetweenthemechanicalsealpumpingringandthepumpdischargehousing.Thedefectivedesignedpumpingringswereinstalledin1969,duringtheconstructionphase,asaresultofamechanicalsealmodification.ThemechanicalsealwassuppliedbyCranePackingCompany.Duetothedateofoccurrence,theconditionistechnicallynot10CFRPart21reportable.However,duet'othesignificanceof'hepotentialpumpdegradation,Rochest'erGasandElectricissubmit'tingvoluntarynotification.Specificinformationregardingfailureident'ificationandcorrectiveact'iontakenaredetailedontheenclosedAtt'achment'.Shouldfurtherinformationberequired,pleasecontactMr.ThomasMarlow,SuperintendentofGinnaSupportServiceson315/524-4446.S905250264890Si2ADOCK05000244PDC Page210CFRPart21May12,1989Verytrulyyours,RobertC.MeredGeneralManagerNuclearProductionxc'r.WilliamT.Russell,RegionalAdministratorU.S.NuclearRegulatoryCommissionRegionI475AllendaleRoadKingof'russia,PA2.9406zc:GinnaSeniorResidentInspector I

AttachmentIName:Title:Facility:DocketNo.:RobertC.MecredyGeneralManagerNuclearProductionR.E.GinnaNuclearPowerPlant50-244BasicComponent:Supplier:Sub-Supplier:NatureofDefect:RHRPumpsPacificPumpInc.,LosAngeles,CACranePackingCompanyMechanicalsealpumpringinterferencewithpumpdischargehousing.IndiscussionwithOriginalEquipmentManufacturer,discoveredduringarootcauseinvestigation,therewasadimensionaltoleranceissuebetweentheoriginallysuppliedmechanicalsealoutsidediameterandthepumpcasingboreinsidediameter.Itwasdeterminedthemechanicalsealswerechangedoutduringtheplantconstructionphaseandreplacedwithanalternatemechanicalseal.Apparently,atthistime,theoriginalpumpingringwasreplacedwithanewstyleringwithnoattentionpaidtotheimpactofthischangewithrespecttopumpcasingboreinsidediameter.Dateobtained:Rubbingbetweenthepumpingringandthepumphousingcouldcausedegradationtothepumpingringwiththepotentialfordamagetothepumprotatingassembly.ConditionistechnicallynotPart22violationduetodateofoccurrence(priorto2978).April28,2989BasicComponentsAffected:Number:Location:2AuxiliaryBuilding,Sub-basementCorrectiveAction:Machinedoutsidediameterofpumpingringatsupplier<sdirectiontopermitproperplacementinpumpdischargehousing.

ResponsibleIndividualforAction:ThomasA.Marlow,SuperintendentGinnaSupportServicesTimetoCompleteAction:ActionwascompletedonbothpumpsApril29,1989.AdviceRelatedtoDefect':Vendorsuppliedrepairdirection.

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