ML17261A484

LER 87-004-00:on 870424,during Full Power,Train B Containment Isolation Occurred.Caused by Personnel Accidentally Bumping Relay in Safeguards Cabinet During Electrical Wire Checkout.Personnel counseled.W/870522 Ltr

ML17261A484
Person / Time
Site:	Ginna
Issue date:	05/22/1987
From:	BACKUS W H, KOBER R W ROCHESTER GAS & ELECTRIC CORP.
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
LER-87-004, LER-87-4, NUDOCS 8705290244
Download: ML17261A484 (10)

Text

REGULATORYIhRMATIONDISTRIBUTIONSYST(RIDS)>gACCESSIONNBR:8705290244DOC.DATE:87/05/22NOTARIZED:NODOCKETFACIL:50-244RobertEmmetQinnaNuclearPlant>Unit1>Rochester'005000244AUTH.NAMEAUTHORAFFILIATIONBACKUSW.H.RochesterGas8cElectricCorp.KOBER>R.W.RochesterGas8cElectricCorp.RECIP.NAMERECIPIENTAFFILIATION

SUBJECT:

LER87-004-00:on870424>duringiul1power>TrainBcontainmentisolationoccurred.Causedbypersonnelaccidental1!)bumpingrelayinsaieguardscabinetduringelectrical!!!irecheckout.Personnelcounseled.W/870522itr.DISTRIBUTIONCODE:IE22DCOPIESRECEIVEl):LTRENCLSIZE:TlTLE:50.73LicenseeEventReport(LF'R)>IncidentRpt>etc.NOTES:LicenseExpdateinaccordanceiith10CFR2>2.109(9/19/72).05000244INTERNAL:CaEXTERNAL:RECIPIENTIDCODE/NAMEPD1-3LASTAHLE>CACRSMICHELSONAEOD/DOAAEOD/DSP/TPABNRR/DEST/ADENRR/DEST/CEBNRR/DEST/ICSBNRR/DEST/MTBNRR/DEBT/RSBNRR/DLPG/HFBNRR/DOEA/EABNRR/DREP/RPBNRR/PMAS/PTSBRESDgPVGIaiEGaGGROH,MLPDRNSI,CHARRIS,JCOPIESLTTRENCL1111111110111111112211551111RECIPIENTIDCODE/NAMEPDi-3PDACRSMOELLERAEOD/DSP/ROABDEXTRONHR/DEST/ADSNRR/DEST/ELONRR/DEST/MEOVHR/DEST/PSBted%R/DEST/SGBNRR/DLPG/GABNRP/DREP/RAB/ILRBREDFILE02RGiILE01HSTLOBBYWARDNRCPDRNICMAYS,GCOPIESLTTRENCL1122221101111111111111111TOTALNUMBEROFCOPlESREQUIRED:LTIR42ENCL40

UCENSEEEVENTREPORTLER)U4.Sh)CLEANhtOULATONYCCMI~AOTNOVSDOSNNO.0)CLOlOStXOINELSOIMOOCXET~hOlOACILITYNAME(llR.E.GinnNuclearPowerPlant05000OfInadvertentContainaentIsolationDueToPersonnelErrorDuringElectricalWireectiEVENTOATSOlLth)NNNSh(0)htOONTDATE(T)OTHthfACILmttINVOLVEDItlMONTHDAYYEANYEANj@~(IIrseeTIAL"y.eeveeoshOAYYEAhoACILITYHAIICSDOCKETHUMSS1(S)06000042487870040005228705000DOESAT)NDMOOSN)~ONE1LEVtLISN~HIHSN)A(NW(1)O)SSA4)(INN)S(LSSS(el(1)(srlSS~)Ill(el~SAQel()l~S~O)M.TSslO)ll~SPSQHSO)NPSsHS)(N)OOhT)INLthlit)~S.TSs)OHHIO.TSslOHe)N.TS(s)O))et)~S.TSWO)(eN)(AlN.TSWOl)shill~S.TSWOXs)Ts(N1ERONTNSUNIITTSDKINSUA)ITTOT)Nhs(x)lhtMENTEoo10cohf.(essesoeoorseesoe'soooooe4es(lll7&1WTARSIWOTHEh(Soossl(oAseosrt~sieeroeeOSeTert.N1CSorerTSLEOHOHSHUMSthW.H.BackusTechnicalAssistanttotheationsManarAhCOOS315524-4446COSNLETtONSLINtOOIIEACHCOSNONSNTOA(LUht~NEOINTl(NhtSONT(IS)CAUSESYSTtMCOMPONENTMANU)eACTUhthtsDIITAsLtTOHONDSCAUSESYSTEMCOMOOHtHTMAHUOACTU1th~OONTASLTOHONDSMJSOLEMSNTALhtOOATSXSECTSOIIS)YESlllyer.sereneCXPSCTSDSUSMISS(DerDATflAssTNAOT(Llrsr(Ioto00Moose,le.,eooroesseeoryre(sees~oNeooeoIyorw(INsllseel(10)MONTHEXOECTtO'USMISt)OHOATSIIS)DAYYEAIIOnApril24,1987at1130EDSTwiththeunitat100'treactorpower,aTrainBContainmentIsolationoccurredduetopersonnelinadvertentlybumpingarelayinthesafeguardscabinetswhileperformingafieldwalkdownfortheelectricaldrawingupgradeprogram.AllContainmentIsolationvalvesrequiredtoclose,operatedasdesigned.Immediatecorrectionactiontakenwas:afterthecauseoftheContainmentIsolationwasdetermined,Operationsrestoredallsystemsaffectedtotheirpre-eventstatus.TherootcauseoftheeventwaspersonnelerrorbytheElectricalEngineerwhobumpedtherelay.intheperformanceofworkinthesecabinets.Correctiveactiontakentopreventrecurrencewastoreinforce,withallpersonnelwhohavetoworkinsafeguardscabinets,theprecautionsthatmustbetakenandtominimizeaccesstothesecabinetsduringpoweroperation.Allaccesswillbesupervisedbytrainedplantpersonnel.8705290244870522PDRADOCK050002448PDRNNCOsroe~(04$)

NRCFOUR366A(9.83(LICENSEEEVENTREPORT(LER)TEXTCONTINUATIONV.S,NUCLEARRECULATORYCOMM(SSIONACCROVEOOMBNO3150-0(04EXPIRES8(3(F85FACILITYNAME(I)OOCKETNUMBER(2(YEARLERNUMBER(6)SEOUENTIALi,REViSIONNUMBER'UMBER~AOE(31R.E.GinnaNuclearPowerPlantTEXTlllmomSPocoiecoqoired,v(ooddemolNl(C%%dnn36(SA'cl021050002447004OFPRE-EVENTPLANTCONDITIONSTheunitwasat100%reactorpowerandtwoElectricalEngineerswereperformingfieldwalkdownsofelectricalsystemsaspartoftheon-goingelectricaldrawingupgradeprogram.TheyhadstartedthisworkonApril22,1987andtheirintentionsweretoreviewthefieldconditionsinnineelectricalcabinetsintheRelayRoom:Ml,M2,RAl,RA2,RA3,SIA1,SIA2,SIBl,andSIB2.PriortostartingtheworkthetwoElectricalEngineersreviewedtheproposedworkscopewiththeInstrumentandControlSupervisorandtheShiftSupervisorandweregivenpermissiontoproceedwiththefollowingrestrictions:Onlyonecabinetbeopenatattimeandthatnotiewrapsorwiresbetouched.Priortotheeventworkhadsuccessfullybeencompletedonsevenofthenineelectricalcabinets.DESCRIPTIONOFEVENTA.EVENT:OnApril24,1987at1130EDST,whilethetwoElectri-calEngineerswereperformingtheirinspectionofelectricalcabinetSIB1,aTrainBContainmentIsolation(CI)occurred.AllContainmentIsolationvalvesnotrequiredtobe'penduringaccidentconditionsclosedasdesigned.B.INOPERABLESTRUCTURES,COMPONENTSORSYSTEMSTHATCONTRIBUTEDTOTHEEVENT:None.NRCCORMSBBA(9.83(

NRCFOIIR366A(9831LICENSEEEVENTREPORT(LER)TEXTCONTINUATIONU5,NUCLEARREGULATORVCOMMISSIONAPPROVEOOMBNO3150&104EKPIRE58/31I85FACILITYNAMElllDOCKETNUMBER13lVEAALERNUMBERl6ISLOUENTIALNUMaSRREVISIONNUMBFRPACE13)R.E.GinnaNuclearPowerPlantTEXT(IfmosoapsoisIoqoiRRLo>>pffOORoffffICFerns8R'A'll1171osooo244004000306C.DATESANDAPPROXIMATETIMESFORMAJOROCCURRENCES:oApril24,1987,1130EDST:Eventdateandtime.oApril24,1987,1130EDST:Discoverydateandtime.oApril24,1987,1137EDST:AllTrainBCIrelaysresetandallCIvalvesreturnedtonormalposition.D.OTHERSYSTEMSORSECONDARYFUNCTIONSAFFECTED:WiththeTrainBCI,thefollowingmajorsystemslineswereisolated:oInstrumentAirtotheContainmentVessel(CV)E.oReactorCoolantSystem(RCS)LetdownLineoReactorCoolantPumps(RCP)glSealReturnLineoContainmentVentilationoSteamGeneratorBlowdownMETHODOFDISCOVERY:Theeventwasimmediatelyapparentduetoacontrolboardannunciator,TrainBCIrelayindication,andCIvalvepositionsindicationintheControlRoom.F~OPERATORACTION:OperationsandanInstrumentandControl(1&C)TechnicianimmediatelycheckedoutthereasonfortheCI.Afterfindingallrelaysintheirnormalstatus,OperationsrestoredallsystemsaffectedbytheBTrainCItotheirpre-eventstatus.NSICFOAM366A1983I 0

r6EINRCFosm366AI983I'LICENSEEEVENTREPORT(LER)TEXTCONTINUATIONU.S.NUCLEARREGULATORYCOMMISSIONAPPROYEDOM8NO3I50DIOSEXPIRES8/3Ii85FACILITYNAMEIIIDOCKETNUMSERI?IYEAssLERNUMSERISISEQUENTIALNUMSSRREVISIONNUMSSAPAGEI3)R.E.GinnaNuclearPowerPlantTEXTIllmorespesoieseoosod,we~HACForm3SSA'sl(17)05000244870040004OF06CAUSEOFEVENTA.IMMEDIATECAUSE:BTrainCIrelayC-2actuateddue,tobeinginadver-tentlybumpedbyEngineeringpersonnelinspectingelectricalcabinetSIB1.B.ROOTCAUSE:TherootcausewasdeterminedtobepersonnelerrorbytheElectricalEngineerbynotbeingmorecarefulwhenworkingintheelectricalcabinets.IV.ANALYSISOFEVENTThiseventisreportableinaccordancewith10CFR50.73,LicenseeEventReportSystem,item(a)(2)(iv),whichrequiresreportingof"anyeventorconditionthatresultedinmanualorautomaticactuationofanyEngineeredSafetyFeature(ESF),includingtheReactorProtectionSystem(RPS)"inthatContainmentIsolationisaESFsub-system.Anassessmentwasperformedofthesafetyconsequencesandimplicationsofthiseventwiththefollowingresultsandconclusions:TherewerenooperationalorsafetyconsequencesorimplicationsattributedtotheinadvertentCIbecause;0TheCIsystemoperatedasdesigned.00Thesystemsaffectedwererestoredtonormalstatusveryquickly(withinapproximately7minutes).Thesystemsaffectedwerecapableofwithstandingtheisolationforashortperiodoftime.NACCORM366AI883I NRCForm3ddA19431LICENSEEEVENTREPORT(LER)TEXTCONTINUATIONU.S.NUCLEARREGULATORYCOMMISSIONAPPROUEOOM8NO3150M(CdEXPIRES8131'85FACILITYNAME(11OOCKETNUMSER(2(YEARLERNUM8ER(dlEEOUENTrALNUMEERrlEvI5roNNUMERPAGE(31R.E.GinnaNuclearPowerPlantTEXTillmoreTrrooolreoerr'eoo,rroo~HRCForm3684'Fl(LT(06000244004-0005oF06V.CORRECTIVEACTIONA.ACTIONTAKENTORETURNAFFECTEDSYSTEMSTOPRE-EVENTNORMALSTATUS:oOperations,afterfindingthatthecausefortheCIwasinadvertent,restoredallsystemsaffectedbytheeventtotheirpre-eventstatus.B.ACTIONTAKENORPLANNEDTOPREVENTRECURRENCE:I'TheOperationsManagerhassentalettertoallSectionsManagersaffected,thatstatestotheextentpractical,workinallelectricalsafe-guardsandprotectioncabinetswillbeminimizedwhiletheplantisatpower..BothoftheElectricalEngineersinvolvedwiththeeventhavehadtheirawarenessreinforcedastotheprecautionswhichmustbetakenwhileworkinginelectricalsafeguardsandprotectioncabinets.00AllEngineeringpersonnelrequiringaccesstoelectricalsafeguardsandprotectioncabinetshavebeenmadeawareofthiseventbytheirmanagers.Placardswillbe'adeandattachedtoallelectricalsafeguardcabinetsthatread:Duringpoweroperations-accesswillbesupervisedbyOperations,I&Cpersonnel,orTestandResults'ersonnel.NRCFORM3ddA(9831 NRCFarm36SA(943IFACILITYNAME(IIr~V.S.NUCLEARREGULATORYCOMMISSIONOOCKETNVMSER(2(YEARLERNUMBER(SISSQUSNTrALa88r.4UMes/IAPPROVEOOMSNO.3(50&(04EXPIRES8(3(r85.'svrsro44UMes4~AGE(3lLICENSEEEVENTREPORT(LER)TEXTCONTINUATIONR.E.GinnaNuclearPowerPlantTEXTIllmoresireseiseyvr(erSvse~rYRC%%dmr3554'sl(It(pgppp24487-0040006oFo6VI.ADDITIONALINFORMATIONA.FAILEDCOMPONENTS:B.Therewerenocomponentfailuresthatcontributedtothisevent.rPREVIOUSLERsONSIMILAREVENTS:AsimilarLEReventhistoricalsearchwasconductedwiththefollowingresults:NodocumentationofsimilarLEReventscouldbeidentified.4RCs08M36(IAIa831 ROCHES'ri"',.-rts89EAS'TAVEh!UErROCHESTER,N.Y.14649.000'la%~C.aAMay22,1987U.S.NuclearRegulatoryCommissionDocumentControlDeskWashington,DC20555

Subject:

LER87-004,InadvertentContainmentIsolationDuetoPersonnelErrorDuringElectricalWireCheckoutofSafetyInjectionRelayCabinet.R.E.GinnaNuclearPowerPlantDocketNo.50-244Inaccordancewith10CFR50.73,LicenseeEventReportSystem,item(a)(2)(iv)whichrequiresareportof,"anyeventorconditionthatresultedinmanualorautomaticactuationofanyEngineeredSafetyFeature(ESF),includingtheReactorProtectionSystem(RPS)",theattachedLicenseeEventReportLER87-004isherebysubmitted.Thiseventhasinnowayaffectedthepublic'shealthandsafety.Vrytrulyyours,d./cRogrW.KoberxcU.S,NuclearRegulatoryCommissionRegionI631ParkAvenueKingofPrussia,PA19406GinnaUSNRCResidentInspector