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NRCFORM366A(5-92)U.S.NUCLEARREGULATORYCQOIISSIONLICENSEEEVENTREPORT(LER)TEXTCONTINUATIONAPPROVEDBYQQINO.3150-0104EXPIRES5/31/95ESTIMATEDBURDENPERRESPONSETOCOMPLY'WITHTHISINFORMATIONCOLLECTIOHREQUEST:50.0HRS.FORWARDCOMMENTSREGARDIHGBURDENESTIMATETOTHEINFORMATIONANDRECORDSMANAGEMENTBRANCH(MHBB7714),U.S.NUCLEARREGULATORYCOMMISSION@WASHINGTON,DC205550001AHDTOTHEPAPERWORKREDUCTIONPROJECT(31400104),OFFICEOFMANAGEMENTANDBUDGETWASHINGTONDC20503.FACILITYNAME1R.E.GinnaNuclearPowerPlantDOCKETHIMBER205000244YEAR93--005-00LERHIHIBER6SEQUENTIALREVISIONPAGE38OF9TEXT(Ifmorespaceisrequired,useadditionalcopiesofNRCForm366A)(17)ThetestingperformedonOctober11and12,1993demonstratedend-to-endoperabilityoftheundervoltageprotectionsystem.Thistestingverifiedundervoltagesignalstoallsafeguardsequipment,andundervoltageinconjunctionwithSIsignalstotheCCWpumps.Thistestingalsoverifiedfulloperabilityoftheundervoltageauxiliaryrelays.Thetesting,incombinationwiththesurveillancetestsconductedduringthe1993outage,.mettherequirementsofTS4.6.1.e.3.(a).Basedontheabove,itcanbeconcludedthatthepublic'shealthandsafetywasassuredatalltimes.V.CORRECTIVEACTIONA.ACTIONTAKENTORETURNAFFECTEDSYSTEMSTOPRE-EVENTNORMALSTATUS:OTestingwasperformedwithin24hoursofdiscovery,andcompliancewiththerequirementsofTS4.6.1.e.3.(a)wasachieved.B.ACTIONTAKENORPLANNEDTOPREVENTRECURRENCE:oProceduresthatverifyloadsheddingcapabilitywillbeupgradedtoincludesafeguardsloads,forconditionsofundervoltageandSI,priortothenextscheduledrefuelingoutage.OTherequirementsofTS4.6.1havebeenreviewedandcomparedwithsurveillanceprocedures.Nonon-complianceswereidentified.OAreviewofSection4oftheGinnaTechnicalSpecificationswillbeperformed,toensurethatthereareimplementingproceduresforeverysurveillancerequiredbyTS.NRCFORM366A(5-92)  
NRCFORM366A(5-92)U.S.NUCLEARREGULATORYCQOIISSIONLICENSEEEVENTREPORT(LER)TEXTCONTINUATIONAPPROVEDBYQQINO.3150-0104EXPIRES5/31/95ESTIMATEDBURDENPERRESPONSETOCOMPLY'WITHTHISINFORMATIONCOLLECTIOHREQUEST:50.0HRS.FORWARDCOMMENTSREGARDIHGBURDENESTIMATETOTHEINFORMATIONANDRECORDSMANAGEMENTBRANCH(MHBB7714),U.S.NUCLEARREGULATORYCOMMISSION@WASHINGTON,DC205550001AHDTOTHEPAPERWORKREDUCTIONPROJECT(31400104),OFFICEOFMANAGEMENTANDBUDGETWASHINGTONDC20503.FACILITYNAME1R.E.GinnaNuclearPowerPlantDOCKETHIMBER205000244YEAR93--005-00LERHIHIBER6SEQUENTIALREVISIONPAGE38OF9TEXT(Ifmorespaceisrequired,useadditionalcopiesofNRCForm366A)(17)ThetestingperformedonOctober11and12,1993demonstratedend-to-endoperabilityoftheundervoltageprotectionsystem.Thistestingverifiedundervoltagesignalstoallsafeguardsequipment,andundervoltageinconjunctionwithSIsignalstotheCCWpumps.Thistestingalsoverifiedfulloperabilityoftheundervoltageauxiliaryrelays.Thetesting,incombinationwiththesurveillancetestsconductedduringthe1993outage,.mettherequirementsofTS4.6.1.e.3.(a).Basedontheabove,itcanbeconcludedthatthepublic'shealthandsafetywasassuredatalltimes.V.CORRECTIVEACTIONA.ACTIONTAKENTORETURNAFFECTEDSYSTEMSTOPRE-EVENTNORMALSTATUS:OTestingwasperformedwithin24hoursofdiscovery,andcompliancewiththerequirementsofTS4.6.1.e.3.(a)wasachieved.B.ACTIONTAKENORPLANNEDTOPREVENTRECURRENCE:oProceduresthatverifyloadsheddingcapabilitywillbeupgradedtoincludesafeguardsloads,forconditionsofundervoltageandSI,priortothenextscheduledrefuelingoutage.OTherequirementsofTS4.6.1havebeenreviewedandcomparedwithsurveillanceprocedures.Nonon-complianceswereidentified.OAreviewofSection4oftheGinnaTechnicalSpecificationswillbeperformed,toensurethatthereareimplementingproceduresforeverysurveillancerequiredbyTS.NRCFORM366A(5-92)  


NRCFORM366A(5-92)U.S.NUCLEARREGULATORYC(NHISSIOHLICENSEEEVENTREPORT(LER)TEXTCONTINUATIONAPPROVEDBYOMBNO.3150-0104EXPIRES5/31/95ESTIMATEDBURDENPERRESPONSETOCOMPLY'NITNTHISIHFORMATIOHCOLLECTIOHREOUEST:50.0NRS.FORWARDCOMMENTSREGARDINGBURDENESTIMATETOTHEINFORMATIONANDRECORDSMANAGEMENTBRANCH(MHBB7714),U.S.NUCLEARREGULATORYCOMHISSIOH~IJASHINGTON,DC20555-0001AHDTOTHEPAPERMORKREDUCTIONPROJECT(3140-0104),OFFICEOFMANAGEMENTANDBUDGETNASHIHGTONDC20503.FACILIT'YNAME1R.E.GinnaNuclearPowerPlantDOCKETNUMBER205000244LERNUMBER6YEARSEQUENTIAL93-005--REVISION00PAGE39OF9TEXT(Ifmorespaceisrequired,useadditionalcopiesofNRCForm366A)(17)VI.ADDITIONALINFORMATIONA.FAILEDCOMPONENTS:None.B.PREVIOUSLERsONSIMILAREVENTS.AsimilarLEReventhistoricalsearchwasconductedwiththefollowingresults:NodocumentationofsimilarLEReventswiththesamerootcauseatGinnaNuclearPowerPlantcouldbeidentified.C.SPECIALCOMMENTS:NRCGL87-09allows24hourstoperformamissedsurveillancetest,iftheallowableoutagetime(AOT)oftheLCOActionRequirementsarelessthanthis24hourtimelimit,orwhenshutdownActionRequirementsapply.Thistimelimitisbased'nbalancingtherisksbetweencompletingtherequiredtestingandpotentiallychallengingsafetysystemswhileperformingshutdownactions.TS4.6.1.e.3.(a)isnormallyrequiredtobeperformedduringshutdownconditions,sinceperformingthissurveillanceremovesthenormalsourceofoffsitepower,whichmaycauseelectricalsystemdisturbances.RochesterGas&Electric(RG&E)electedtoperformthenecessarytestingatpower,afterevaluatingthepotentialrisks.Areviewofexistingtestingproceduresindicatedthatonlyspecificportionsoftheloadsheddingcapabilitieswerenotbeingtested.RG&Edeterminedthatperformanceofthenecessaryvoltageandcontinuityteststoverifytheseuntestedcapabilitiescouldbesafelyconductedatpower.Thisisduetothefactthatnosafeguardsloadsonthebuseswouldhavetobedeclaredinoperable,andnooffsitepowersourcewouldhavetoberemovedfromservicetoperformthetests.Therefore,performanceofthenecessarytests(atpower)within24hoursofdiscoverywasdeemedappropriate.HRCFORM366A(5.92)  
NRCFORM366A(5-92)U.S.NUCLEARREGULATORYC(NHISSIOHLICENSEEEVENTREPORT(LER)TEXTCONTINUATIONAPPROVEDBYOMBNO.3150-0104EXPIRES5/31/95ESTIMATEDBURDENPERRESPONSETOCOMPLY'NITNTHISIHFORMATIOHCOLLECTIOHREOUEST:50.0NRS.FORWARDCOMMENTSREGARDINGBURDENESTIMATETOTHEINFORMATIONANDRECORDSMANAGEMENTBRANCH(MHBB7714),U.S.NUCLEARREGULATORYCOMHISSIOH~IJASHINGTON,DC20555-0001AHDTOTHEPAPERMORKREDUCTIONPROJECT(3140-0104),OFFICEOFMANAGEMENTANDBUDGETNASHIHGTONDC20503.FACILIT'YNAME1R.E.GinnaNuclearPowerPlantDOCKETNUMBER205000244LERNUMBER6YEARSEQUENTIAL93-005--REVISION00PAGE39OF9TEXT(Ifmorespaceisrequired,useadditionalcopiesofNRCForm366A)(17)VI.ADDITIONALINFORMATIONA.FAILEDCOMPONENTS:None.B.PREVIOUSLERsONSIMILAREVENTS.AsimilarLEReventhistoricalsearchwasconductedwiththefollowingresults:NodocumentationofsimilarLEReventswiththesamerootcauseatGinnaNuclearPowerPlantcouldbeidentified.C.SPECIALCOMMENTS:NRCGL87-09allows24hourstoperformamissedsurveillancetest,iftheallowableoutagetime(AOT)oftheLCOActionRequirementsarelessthanthis24hourtimelimit,orwhenshutdownActionRequirementsapply.Thistimelimitisbased'nbalancingtherisksbetweencompletingtherequiredtestingandpotentiallychallengingsafetysystemswhileperformingshutdownactions.TS4.6.1.e.3.(a)isnormallyrequiredtobeperformedduringshutdownconditions,sinceperformingthissurveillanceremovesthenormalsourceofoffsitepower,whichmaycauseelectricalsystemdisturbances.RochesterGas&Electric(RG&E)electedtoperformthenecessarytestingatpower,afterevaluatingthepotentialrisks.Areviewofexistingtestingproceduresindicatedthatonlyspecificportionsoftheloadsheddingcapabilitieswerenotbeingtested.RG&Edeterminedthatperformanceofthenecessaryvoltageandcontinuityteststoverifytheseuntestedcapabilitiescouldbesafelyconductedatpower.Thisisduetothefactthatnosafeguardsloadsonthebuseswouldhavetobedeclaredinoperable,andnooffsitepowersourcewouldhavetoberemovedfromservicetoperformthetests.Therefore,performanceofthenecessarytests(atpower)within24hoursofdiscoverywasdeemedappropriate.HRCFORM366A(5.92)}}
 
}}

Revision as of 12:33, 18 May 2018

LER 93-005-00:on 931011,due to Misinterpretation of TS 4.6.1.e.3.(a) Requirements,Verification of Load Shedding Capability of Safeguards Loads Not Adequately Performed. Testing Completed to Verify capability.W/931110 Ltr
ML17263A466
Person / Time
Site: Ginna Constellation icon.png
Issue date: 11/10/1993
From: MECREDY R C, ST MARTIN J T
ROCHESTER GAS & ELECTRIC CORP.
To: JOHNSON A R
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM), Office of Nuclear Reactor Regulation
References
LER-93-005, LER-93-5, NUDOCS 9311170036
Download: ML17263A466 (22)


Text

ACCEI.ERAT@9DOCUMENTDISTUTIONSYSTEMREGULAT~INFORMATIONDISTRIBUTIONSTEM(RIDS)ACCESSIONNBR:9311170036DOC.DATE:93/11/10,NOTARIZED:NOFACIL:50-244RobertEmmetGinnaNuclearPlant,Unit1,RochesterGAUTH.NAMEAUTHORAFFILIATIONSTMARTIN,J.T.RochesterGasaElectricCorp.MECREDY,R.C.RochesterGas&ElectricCorp.RECIP.NAMERECIPIENTAFFILIATIONDOCKET05000244JOHNSON,A.R.ProjectDirectorateI-3

SUBJECT:

LER93-005-00:on931011,duetomisinterpretationofTS4.6.l.e.3.(a)requirements,verificationofloadshedding'apabilityofsafeguardsloadsnotadequatelyperformed.Testingcompletedtoverifycapability.W/931110ltr.DISTRIBUTIONCODE:IE22TCOPIESRECEIVED:LTRQENCLQSIZE:I~TITLE:50.73/50.9LicenseeEventReport(LER),IncidentRpt,etc.DNOTES:LicenseExpdateinaccordancewith10CFR2,2.109(9/19/72).05000244DRECIPIENTIDCODE/NAMEPDl-3LAJOHNSON,A1INTERNAL:AEOD/DOAAEOD/ROAB/DSPNRR/DE/EMEBNRR/DRCH/HHFBNRR/DRCH/HOLBNRR/DRSS/PRPBNRR/DSSA/SRXBRES/DSIR/EIBEXTERNAL:EGSGBRYCEPJ.HNRCPDRNSICPOOREPW.COPIESLTTRENCL11111122111111221111221111RECIPIENTIDCODE/NAMEPD1-3PDAEOD/DSP/TPABNRR/DE/EELBNRR/DORS/OEABNRR/DRCH/HICBNRR/DRZL/RPEBBASSASPLBREGILE02RGFILE01LSTLOBBYWARDNSICMURPHY,G.ANUDOCSFULLTXTCOPIESLTTRENCL111111111111111~111111111DDNOTETOALL"RIDS"RECIPIENTS:PLEASEHELPUSTOREDUCEWASTElCONTACI'HEDOCUMENTCONTROLDESK,ROOMPl-37(EXT.504-2065)TO,ELIMINATEYOURNAMEFROMDISTRIBUTIONLISISFORDOCUMENTSYOUDON'TNEEDfDrrvrrFULLTEXTCONVERSIONREQUIREDTOTALNUMBEROFCOPIESREQUIRED:LTTR28ENCL28

'l jeylvmIgeZZaxri"jrI]'jljj'J'ii'OCHESTERGASANDELECTRICCORPORATIONROBERTCMECREDYVicePreridenlCinnaNuclearProductionerrew~~~IIC/'gcoensrArc~89EASTAVENUE,ROCHESTERN.Y.14649-0001TEi.EpHolrEAREACODE7l65462700November10,1993U.S.NuclearRegulatoryCommissionAttn:AllenR.JohnsonProjectDirectorateI-3DocumentControlDeskNashington,DC20555

Subject:

LER93-005,FailuretoPerformSurveillance,DuetoMisinterpretationofRequirements,CausesaConditionProhibitedbyPlantTechnicalSpecificationsR.E.GinnaNuclearPowerPlantDocketNo.50-244Inaccordancewith10CFR50.73,LicenseeEventReportSystem,item(a)(2)(i)(B),whichrequiresareportof,"anyoperationorconditionprohibitedbytheplant'sTechnicalSpecifications",theattachedLicenseeEventReportLER93-005isherebysubmitted.Thiseventhasinnowayaffectedthepublic'shealthandsafety.Verytrulyyours,RobertC.Meredyxc:U.S.NuclearRegulatoryCommissionRegionI475AllendaleRoadKingofPrussia,PA19406GinnaUSNRCSeniorResidentInspector931117003b'7i31110PDRADOCK05000244SPDR

NRCFORH366(5-92)U.SNUCLEARREGULATORYCOHHISSIONAPPROVEDBYQLBNO.3150-0104EXPIRES5/31/95LICENSEEEVENTREPORT(LER)(Seereverseforrequirednumberofdigits/charactersforeachblock)ESTIHATEDBURDENPERRESPONSETOCOHPLYWITHTHISINFORHATIONCOLLECTIONREOUEST:50.0HRS.FORWARDCOHMENTSREGARDINGBURDENESTIHATETOTHEIHFORHATIONANDRECORDSMANAGEHENTBRANCH(HNBB7714),U.S.NUCLEARREGULATORYCOHHISSION,WASHIHGTON,DC20555-0001ANDTOTHEPAPERWORKREDUCTIONPROJECT(31500104),OFFICEOFHANAGEMENTANDBUDGETWASHINGTONDC20503.FAcILITYNAME(1)R.E~GinnaNuclearPowerPlantDOCKETNQSER(2)05000244PAGE(3)1OF9TITLE(4)FailuretoPerformSurveillance,DuetoMisinterpretationofRequirements,CausesaConditionProhibitedbyPlantTechnicalSpecificationsEVENTDATE5LERNINBER6REPORTDATE7OTHERFACILITIESINVOLVED8HONTH10DAYYEARYEAR119393SEQUENTIALNUMBER-005-REVISIONNUMBER00HONTHDAYYEAR1093FACILITYNAMEFACILITYNAMEDOCKETNUMBER05000DOCKETNUMBER05000OPERATINGM<X)E(9)POWERLEVEL(10)N09720.402<b)20.405(a)(1)(i)20.405(a)(1)<ii)20.405(a)(1)(iii)20.405(a)(1)(iv)20.405(a)(1)(v)20.405(c)50.36<c)(1)50.36(c)(2))(50.73(a)(2)(i)50.73(a)(2)(ii)50.73(a)(2)(iii)LICENSEECONTACTFORTHISLER1250'3(a)(2)(iv)50.73(a)(2)(v)50.73(a)(2)(vii)50.73(a)(2)(viii)(A)50'3(a)(2)(viii)(B)50.73(a)(2)(x)73.71(b)73.71(c)OTHER(SpecifyinAbstractbelowandinText,NRCForm366ATHISREPORTISSUBMITTEDPURSUANTTOTHEREQUIREMENTSOF10CFR:Checkoneormore11NAHEJohnT.St.Hartin-Director,OperatingExperienceTELEPHONENUHBER(IncludeAreaCode)(315)524-4446C<NPLETEONELINEFOREACHCOMPONENTFAILUREDESCRIBEDINTHISREPORT13CAUSESYSTEHCOMPONENTHANUFACTURERREPORTABLETONPRDS';;ip:4:+IPQ+IPqx".'AUSESYSTEHCOMPONENTHANUFACTURERREPORTABLETONPRDSSUPPLEMENTALREPORTEXPECTED14YES(Ifyes,completeEXPECTEDSUBMISSIONDATE).XNOEXPECTEDSUBMISSIONDATE(15)HONTHDAYYEARABSTRACT(Limitto1400spaces,i.e.,approximately15single-spacedtypewrittenlines)(16)OnOctober11,1993,at1330EDST,withthereactoratapproximately97'.fullpower,evaluationofsurveillancetestingproceduresdeterminedthatTechnicalSpecification4.6.1.e.3.(a)requirementsweremisinterpreted.Therefore,itwasconcludedthatverificationofloadsheddingcapabilityofsafeguardsloadshadnotbeenadequatelyperformed.Immediatecorrectiveactionwasinitiatedtocompletetestingthatwouldverifythisloadsheddingcapability.Thistestingwascompletedwithin24hoursofdiscovery,achievingcompliancewithTechnicalSpecification4.6.1.e.3.(a)requirements.TheunderlyingcauseofthefailuretoperformthissurveillancewasamisinterpretationofTechnicalSpecificationsurveillancerequirements.(ThiseventisNUREG-1220(E)causecode.)Correctiveactionwastoperformthetesting.CorrectiveactiontoprecluderepetitionisoutlinedinSectionV(B).NRCFORM366(5-92)'

NRCFORM366A(5-92)U.S.NUCLEARREGULATORYCOHIISSIONLICENSEEEVENTREPORT(LER)TEXTCONTINUATIONAPPROVEDBYOMBNO3150-0104EXPIRES5/31/95ESTIHATEDBURDENPERRESPONSETOCOHPLYWITHTHISINFORHATIONCOLLECTIONREQUEST:50.0HRS.FORWARDCOMMENTSREGARDINGBURDENESTIMATETOTHEINFORMATIONANDRECORDSHANAGEHEHTBRANCH(MNBB7714),U.S.NUCLEARREGULATORYCOHMISSION,WASHINGTON,DC20555-0001,ANDTOTHEPAPERWORKREDUCTIONPROJECT(3150.0104),OFFICEOFMAHAGEHENTANDBUDGETWASHINGTOHDC20503.FACILITYNAME1R.E.GinnaNuclearPowerPlantDOCKETNUMBER205000244YEAR93--005--00LERHIMBER6SEQUENTIALREVISIONPAGE32OF9tTEXT(Ifmorespaceisrequired,useadditionalcopiesofHRCForm366A)(17)PRE-EVENTPLANTCONDITIONSTheplantwasatapproximately979.steadystatereactorpower.Anevaluationofsurveillancetestprocedureswasinprogress,toaddresspotentialnon-compliancewithTechnicalSpecification4.6.1.e.3.(a)surveillancerequirementstoverifyloadsheddingfromtheemergencybuses.II.DESCRIPTIONOFEVENTA.DATESANDAPPROXIMATETIMESOFMAJOROCCURRENCES:1.October11,1993,1330EDST:Eventdateandapproximatetime.2.October11,1993,1330EDST:Discoverydateandapproximatetime.3.October11,1993,2037EDST:Initiatedtestingtoverifyloadsheddingcapabilityforloadsonemergencybus14.4.October12,1993,0441EDST:Initiatedtestingtoverifyloadsheddingcapabilityforloadsonemergencybus18.5.October12,1993,0447EDST:Completedtestingofloadsheddingforsafeguardsloadsfromemergencybus14.6.October12,1993,0539EDST:Completedtestingofloadsheddingforsafeguardsloadsfromemergencybus18.Loadsheddingwassatisfactorilyverifiedforthe"A"trainofsafeguardsequipment.7.October12,1993,0540EDST:Initiatedtestingtoverifyloadsheddingcapabilityforloadsonemergencybus17.8.October12,1993,0625EDST:Completedtestingtoverifyloadsheddingforsafeguardsloadsfromemergencybus17.9.October12,1993,0626EDST:Initiatedtestingtoverifyloadsheddingcapabilityforloadsonemergencybus16.NRCFORH366A(5-92)

NRCFORM366A(5-92)U.S.NUCLEARREGULATORYCQIIISSIONLICENSEEEVENTREPORT(LER)TEXTCONTINUATIONAPPROVEDBYMBNO.3150-0104EXPIRES5/31/95ESTIMATEDBURDENPERRESPONSETOCOMPLYlllTHTHISINFORMATIONCOLLECTIONREQUEST:50.0HRS.FORNARDCOMMENTSREGARDINGBURDENESTIMATETOTHEINFORHATIONANDRECORDSMANAGEMENTBRANCH(MNBB7714),U.S.NUCLEARREGULATORYCOMHISSION,NASHINGTOH,DC20555-0001ANDTOTHEPAPERNORKREDUCTIONPROJECT(3140-0104),OFFICEOFMANAGEMENTANDBUDGETIJASHINGTONDC20503.FACILITYNAME1R.E.GinnaNuclearPowerPlantDOCKETNINBER2YEAR0500024493LERNNBER6SEQUENTIALM--005--REVISION00PAGE33OF9TEXT(Ifmorespaceisrequired,useadditionalcopiesofNRCForm366A)(17)10.October12,1993,0716EDST:"B"componentcoolingwater(CCW)pumpoperabilitywasindeterminate.Thepumpwasdeclaredinoperableandremovedfromservice.11.October12,1993,0950EDST:Completedtestingofloadsheddingforsafeguardsloadsfromemergencybus16.Loadsheddingwassatisfactorilyverifiedforthe"B"trainofsafeguardsequipment,exceptforthe"B"CCWpump.12.October12,1993,1003EDST:Withthecompletionoftestingforthe"A"and"B"trainsofsafeguardsequipment,compliancewithTechnicalSpecification4.6.1.e.3.(a)wasachieved.13.October12,1993,1939EDST:"B"CCWpumpdeclaredoperable.B.EVENT:OnOctober11,1993,atapproximately1330EDST,stationandengineeringstaffconfirmedthatsurveillancetestprocedureshadnotfullycompliedwiththerequirementsofTechnicalSpecification(TS)4.6.1.e.3.(a),inthatverificationofloadsheddingofsafeguardsloadspoweredfromtheemergencybuses(buses14,16,17,and18),whilesimulatingalossofoffsitepowerinconjunctionwithasafetyinjection(SI)testsignal,hadnotbeenperformedasrequired.TheguidanceofNRCGenericLetter(GL)87-09,entitled"Sections3.0and4.0oftheStandardTechnicalSpecifications(STS)ontheApplicabilityofLimitingConditionsforOperationandSurveillanceRequirements",wasfollowed.Boththe"A"and"B""dieselgenerators(D/Gs)wereavailabletoperformallintendedfunctions.Failuretoperformthesurveillancewithinthespecifiedtimeintervalconstitutedanon-compliancewiththeOperabilityRequirementsoftheLimitingConditionsforOperation(LCO).NRCFORH366A(5-92)

NRCFORM366A(5-92)U.S.NUCLEARREGULATORYCQIIISSIONLICENSEEEVENTREPORT(LER)TEXTCONTINUATIONAPPROVEDBYOMBNO.3150-0104EXPIRES5/31/95ESTIMATEDBURDENPERRESPONSETOCOHPLYNITHTHISINFORMATIONCOLLECTIOHREQUEST:50.0HRS.FORWARDCOMMENTSREGARDINGBURDENESTIMATETOTHEIHFORMATIOHANDRECORDSMANAGEMENTBRANCH(MHBB7714),U.S.NUCLEARREGULATORYCOMMISSION,MASHINGTON,DC20555-0001ANDTOTHEPAPERNORKREDUCTIONPROJECT(3110-0104),OFFICEOFMANAGEMENTANDBUDGETNASHINGTONDC20503.FACILITYNAMER.E.GinnaNuclearPowerPlantDOCKETNUMBER205000244LERNINIBER6YEARSEQUENTIALM93-005--REVISIONM00PAGE34OF9TEXT(Ifmorespaceisrequired,useadditionalcopiesofNRCForm366A)(17)SurveillancetestingtoverifycompliancewithTS4.6.1.e.3.(a)wasinitiatedonOctober11,1993,atapproximately2037EDST,witheachemergencybusbeingtestedsequentially.Testingforthe"A"trainofsafeguardsequipment(emergencybuses14and18)wascompletedatapproximately0539EDST(onOctober12,1993),andtestingforthe"B"train(emergencybuses16and17)wascompletedatapproximately0950EDST.TechnicalSpecificationcompliancewasachievedatapproximately1003EDST.Duringtestingofthe"B"train,resistancereadingofarelaycontactassociatedwiththe"B"CCWpumpbreakerUndervoltageTripcircuitrydidnotmeetthespecifiedacceptancecriteria.Despitehavingconfidencethatthehigherresistancedidnotimpedethe"B"CCWpumploadsheddingfeature,thestationstaffelectedtodeclarethe"B"CCWpumpinoperable.The"B"CCWpumpwasremovedfromservice,andtheappropriateTSLCOwasentered,untilfunctionaltestingand/orcorrectivemaintenancecouldverifyacceptablecircuitoperation.Subsequently,the"B"CCWpumpbreakerwasrackedintothetestposition,closedfromtheMainControlBoard,andsuccessfullytriptestedbyactuatingtheundervoltagecircuitry.Thistestdemonstratedacceptableloadsheddingcapability.Followingthisverificationofcircuitoperability,correctivemaintenancewasperformedtoimprovecircuitperformance.Thecorrectivemaintenanceconsistedofburnishingofanauxiliaryrelaycontactinthepumptripcircuitry.Thecorrectivemaintenanceprovedsuccessful,withsubsequentresistancereadingsmeetingtheacceptancecriteria.The"B"CCWpumpwasrestoredtoserviceanddeclaredoperable.Note'hatthefunctionaltriptest,'whichwassuccessfullyperformedpriortothecorrectivemaintenance,demonstratedacceptableloadsheddingcapabilityforthe"B"CCWpump.HRCFORM366A(5-92) lf NRCFORM366A(5-92)U.S.NUCLEARREGULATORYCNHIISSIOHLICENSEEEVENTREPORT(LER)TEXTCONTINUATIONAPPROVEDBYWHO.3150-0104EXPIRES5/31/95ESTIMATEDBURDENPERRESPONSETOCOMPLYWITHTHISINFORMATIONCOLLECTIONREQUEST:50.0HRS.FORMARDCOMMENTSREGARDIHGBURDEHESTIMATETOTHEINFORMATIONAHDRECORDSMANAGEMENTBRANCH(MHBB7714),U.S.NUCLEARREGULATORYCOMMISSION,IIASHINGTON,DC20555-0001AHDTOTHEPAPERISRKREDUCI'IONPROJECT(3140-0104),OFFICEOFMAHAGEMENTAHDBUDGETUASHIHGTONDC20503.FACILITYNAME1R.E.GinnaNuclearPowerPlantDOCKETNINSER205000244YEARLERNIMBER6SEQUENTIAL93-005--REVISION00PAGE35OF9TEXT(Ifmorespaceisrequired,useadditionalcopiesofHRCForm366A)(17)C~INOPERABLESTRUCTURESiCOMPONENTSiORSYSTEMSTHATCONTRIBUTEDTOTHEEVENT:None.D.OTHERSYSTEMSORSECONDARYFUNCTIONSAFFECTED:None.E.METHODOFDISCOVERY:ThiseventwasapparentaftercompletionofanevaluationofTS4.6.1.e.3.(a)andsurveillancetestprocedures(proceduresRSSP2'iRSSP2'AiRSSP2'iRSSP19'SSP20iPT94iPT-9.1.16,PT-9.1.17,andPT-9.1.18).Thisevaluationdeterminedthatverificationofloadsheddingcapabilityofsafeguardsloadsfromtheemergencybuseshadnotbeenadequatelyperformed.F.OPERATORACTION:TheControlRoomoperatorswerenotifiedofthefailuretofullycomplywiththerequirementsofTS,andthattheguidanceofNRCGL87-09provideda24hourperiodtocompletetherequiredsurveillancetesting.G.SAFETYSYSTEMRESPONSE:None.HRCFORM366A(5-92)

NRCFORM366A(5-92)U.S.NUCLEARREGULATORYCOMMISSIONLICENSEEEVENTREPORT(LER)TEXTCONTINUATIONAPPROVEDBYmNO.3150-0104EXPIRES5/31/95ESTIMATEDBURDENPERRESPONSETOCOMPLYWITHTHISINFORMATIONCOLLECTIONREQUEST:50.0HRS.FORWARDCOMMENTSREGARDIHGBURDENESTIMATETOTHEINFORMATIONANDRECORDSMANAGEMENTBRANCH(MHBB7714),U.STNUCLEARREGULATORYCOMMISSION,WASHINGTON,DC20555-0001AHDTOTHEPAPERWORKREDUCTIONPROJECT(3140-0104),OFFICEOFMANAGEMENTANDBUDGETWASHINGTONDC20503.FACILITYNAME1R.E.GinnaNuclearPowerPlantDOCKETHLNBER2YEAR0500024493--005--00LERNUMBER6SEQUENTIALREVISIONPAGE36OF9TEXT(lfmorespaceisrequired,useadditionalcopiesof,NRCForm366A)(17)III.CAUSEOFEVENTA.IMMEDIATECAUSE:TheimmediatecauseforfailuretofullycomplywithrequirementsofTSwasproceduraldeficiency,inthatsurveillancetestproceduresdidnotcompletelyreflecttherequirementsofTS4.6.1.e.3.(a).B.ROOTCAUSE:TheunderlyingcauseoftheproceduraldeficiencieswasamisinterpretationofTSsurveillancerequirements.TS4.6.1.e.3.(a)hadbeenpreviouslyinterpretedthattheloadsheddingcapabilitiesrequiredtobeverifiedwereforthenon-essentialloadspoweredfromtheemergencybuses.Thiscapability(fornon-essentialloads)hasbeentestedbysimulatingaSIsignalduringperformanceofproceduresRSSP-2.1andRSSP-2.1A,whichareperformedeachrefuelingoutage.Theneedtoverifyloadsheddingcapabilitiesforsafeguardsloads,withbothundervoltageandSIpresent,hadnotbeenconsideredinthisinterpretation.(ThiseventisNUREG-1220(E)causecode,Management/QualityAssuranceDeficiency).IV.ANALYSISOFEVENT:IThiseventisreportableinaccordancewith10CFR50'3iLicenseeEventReportSystem,item(a)(2)(i)(B),whichrequiresareportof,"Anyoperationorconditionprohibitedbytheplant'sTechnicalSpecifications".Failuretoperformthesurveillancetoverifyloadsheddingfromtheemergencybusesforgreaterthan18monthsisaconditionprohibitedbyGinnaTechnicalSpecifications.NRCFORM366A(5-92)

  • NRCFORM366A(5-92)US.NUCLEARREGULATORYCQNIISSIONLICENSEEEVENTREPORT(LER)TEXTCONTINUATIONAPPROVEDBYWNO.3150-0104EXPIRES5/31/95ESTIMATEDBURDENPERRESPONSETOCOMPLYWITHTHISINFORHATIONCOLLECTIONREQUEST:50.0HRS.FORWARDCOMMENTSREGARDINGBURDENESTIHATETOTHEINFORHATIONANDRECORDSMANAGEHENTBRANCH(MNBB7714),U.S.NUCLEARREGULATORYCOMHISSION,WASHINGTON,DC20555-0001ANDTOTHEPAPERWORKREDUCTIONPROJECT(3140-0104),OFFICEOFMANAGEMENTANDBUDGETWASHIHGTONDC20503.FACILITYNAME1R.E.GinnaNuclearPowerPlantDOCKETNUHBER2YEAR0500024493-005--00LERNIMBER6SEQUENTIALREVISIONPAGE37OF9TEXT(Ifmorespaceisrequired,useadditionalcopiesofNRCForm366A)(17)AsstatedinNRCGL87-09,"FailuretoperformaSurveillanceRequirementwithintheallowedsurveillanceinterval,definedbySpecification4.0.2,shallconstitutenon-compliancewiththeOPERABILITYrequirementsforaLimitingConditionforOperation.ThetimelimitsoftheACTIONrequirementsareapplicableatthetimeitisidentifiedthataSurveillanceRequirementhasnotbeenperformed.TheACTIONrequirementsmaybedelayedforupto24hourstopermitthecompletionofthesurveillancewhentheallowableoutagetimelimitsoftheACTIONrequirementsarelessthan24hours."Anassessmentwasperformedconsideringboththesafetyconsequencesandimplicationsofthiseventwiththefollowingresultsandconclusions:TherequirementofTS4.6.1.e.3.(a)istosimulatealossofoffsitepowerinconjunctionwithasafetyinjectiontestsignalandverifyde-energizationoftheemergencybusesandloadsheddingfromtheemergencybuses.Performanceofthissurveillanceisaccomplishedthroughanumberofshutdownprocedures:RSSP-2.1,RSSP-2.1A,RSSP-2.2,RSSP-19,RSSP-20,PT-9.1.14,PT-9.1.16,PT-9.1.17,andPT-9.1.18.Anevaluationoftheseproceduresindicatedthattheundervoltageloadsheddingofthefollowingsafeguardsequipmentwasnotbeingperformed:safetyinjection(SI)pumps,residualheatremoval(RHR)pumps,servicewater(SW)pumps,containmentrecirculationfans,andauxiliaryfeedwater(AFW)pumps.Inaddition,theundervoltage(inconjunctionwithSIsignal)loadsheddingoftheCCWpumpswasnotbeingperformed.Theproceduresdidverifytheoperabilityoftheundervoltagerelays,undervoltagesystemlogic,andpartiallyverifiedtheoperabilityoftheundervoltageauxiliaryrelays.Theproceduresalsoverifiedtheloadsheddingofallotheremergencybusloads.NRCFORM366A(5-92)

NRCFORM366A(5-92)U.S.NUCLEARREGULATORYCQOIISSIONLICENSEEEVENTREPORT(LER)TEXTCONTINUATIONAPPROVEDBYQQINO.3150-0104EXPIRES5/31/95ESTIMATEDBURDENPERRESPONSETOCOMPLY'WITHTHISINFORMATIONCOLLECTIOHREQUEST:50.0HRS.FORWARDCOMMENTSREGARDIHGBURDENESTIMATETOTHEINFORMATIONANDRECORDSMANAGEMENTBRANCH(MHBB7714),U.S.NUCLEARREGULATORYCOMMISSION@WASHINGTON,DC205550001AHDTOTHEPAPERWORKREDUCTIONPROJECT(31400104),OFFICEOFMANAGEMENTANDBUDGETWASHINGTONDC20503.FACILITYNAME1R.E.GinnaNuclearPowerPlantDOCKETHIMBER205000244YEAR93--005-00LERHIHIBER6SEQUENTIALREVISIONPAGE38OF9TEXT(Ifmorespaceisrequired,useadditionalcopiesofNRCForm366A)(17)ThetestingperformedonOctober11and12,1993demonstratedend-to-endoperabilityoftheundervoltageprotectionsystem.Thistestingverifiedundervoltagesignalstoallsafeguardsequipment,andundervoltageinconjunctionwithSIsignalstotheCCWpumps.Thistestingalsoverifiedfulloperabilityoftheundervoltageauxiliaryrelays.Thetesting,incombinationwiththesurveillancetestsconductedduringthe1993outage,.mettherequirementsofTS4.6.1.e.3.(a).Basedontheabove,itcanbeconcludedthatthepublic'shealthandsafetywasassuredatalltimes.V.CORRECTIVEACTIONA.ACTIONTAKENTORETURNAFFECTEDSYSTEMSTOPRE-EVENTNORMALSTATUS:OTestingwasperformedwithin24hoursofdiscovery,andcompliancewiththerequirementsofTS4.6.1.e.3.(a)wasachieved.B.ACTIONTAKENORPLANNEDTOPREVENTRECURRENCE:oProceduresthatverifyloadsheddingcapabilitywillbeupgradedtoincludesafeguardsloads,forconditionsofundervoltageandSI,priortothenextscheduledrefuelingoutage.OTherequirementsofTS4.6.1havebeenreviewedandcomparedwithsurveillanceprocedures.Nonon-complianceswereidentified.OAreviewofSection4oftheGinnaTechnicalSpecificationswillbeperformed,toensurethatthereareimplementingproceduresforeverysurveillancerequiredbyTS.NRCFORM366A(5-92)

NRCFORM366A(5-92)U.S.NUCLEARREGULATORYC(NHISSIOHLICENSEEEVENTREPORT(LER)TEXTCONTINUATIONAPPROVEDBYOMBNO.3150-0104EXPIRES5/31/95ESTIMATEDBURDENPERRESPONSETOCOMPLY'NITNTHISIHFORMATIOHCOLLECTIOHREOUEST:50.0NRS.FORWARDCOMMENTSREGARDINGBURDENESTIMATETOTHEINFORMATIONANDRECORDSMANAGEMENTBRANCH(MHBB7714),U.S.NUCLEARREGULATORYCOMHISSIOH~IJASHINGTON,DC20555-0001AHDTOTHEPAPERMORKREDUCTIONPROJECT(3140-0104),OFFICEOFMANAGEMENTANDBUDGETNASHIHGTONDC20503.FACILIT'YNAME1R.E.GinnaNuclearPowerPlantDOCKETNUMBER205000244LERNUMBER6YEARSEQUENTIAL93-005--REVISION00PAGE39OF9TEXT(Ifmorespaceisrequired,useadditionalcopiesofNRCForm366A)(17)VI.ADDITIONALINFORMATIONA.FAILEDCOMPONENTS:None.B.PREVIOUSLERsONSIMILAREVENTS.AsimilarLEReventhistoricalsearchwasconductedwiththefollowingresults:NodocumentationofsimilarLEReventswiththesamerootcauseatGinnaNuclearPowerPlantcouldbeidentified.C.SPECIALCOMMENTS:NRCGL87-09allows24hourstoperformamissedsurveillancetest,iftheallowableoutagetime(AOT)oftheLCOActionRequirementsarelessthanthis24hourtimelimit,orwhenshutdownActionRequirementsapply.Thistimelimitisbased'nbalancingtherisksbetweencompletingtherequiredtestingandpotentiallychallengingsafetysystemswhileperformingshutdownactions.TS4.6.1.e.3.(a)isnormallyrequiredtobeperformedduringshutdownconditions,sinceperformingthissurveillanceremovesthenormalsourceofoffsitepower,whichmaycauseelectricalsystemdisturbances.RochesterGas&Electric(RG&E)electedtoperformthenecessarytestingatpower,afterevaluatingthepotentialrisks.Areviewofexistingtestingproceduresindicatedthatonlyspecificportionsoftheloadsheddingcapabilitieswerenotbeingtested.RG&Edeterminedthatperformanceofthenecessaryvoltageandcontinuityteststoverifytheseuntestedcapabilitiescouldbesafelyconductedatpower.Thisisduetothefactthatnosafeguardsloadsonthebuseswouldhavetobedeclaredinoperable,andnooffsitepowersourcewouldhavetoberemovedfromservicetoperformthetests.Therefore,performanceofthenecessarytests(atpower)within24hoursofdiscoverywasdeemedappropriate.HRCFORM366A(5.92)