ML17326A033

LER 99-004-01:on 971030,failure to Perform TS Surveillance Analyses of Reactor Coolant Chemistry with Fuel Removed Was Noted.Caused by Ineffective Mgt of Tss.Chemistry Personnel Have Been Instructed on Requirement to Follow TS as Written

ML17326A033
Person / Time
Site:	Cook
Issue date:	07/01/1999
From:	BERRY L R INDIANA MICHIGAN POWER CO.
To:
Shared Package
ML17326A032	List: ML17326A031 ML17326A033
References
LER-99-004, LER-99-4, NUDOCS 9907090123
Download: ML17326A033 (3)

Text

NRCFORM366U.S.NUCLEARREGULACOMMISSION(6-1999),LlCENSEEEVENT'REPORT(LER),(Seereverseforrequirednumberof'igits/charactersforeachblock)APPROVOMBNO.3150-0104EXPIRES06/30/2001Estimatedburdenperresponsetocomplyviiththismandatoryinformationcollectionrequest:50hrs.ReportedlessonslearnedareIncorporatedintothelicensingprocessandfedbacktoIndustry.ForNtardcommentsregardingburdenestimatetotheRecordsManagementBranch(TWF33),U,S.NuclearRegulatoryCommission,Washington.DC205554001.andtothePap+workReductionProject(31500104),OiriceofManagementandBudget,Washington,DC20503.IfaninformationcollectiondoesnotdisplayacurrentlyvalrdOMBcontrolnumber,theNRCmaynotconductorsponsor.andapersonisnotrequiredtorespondto.theinformationco)lection.FACILITYNAMEI1)CookNuclearPlantUnit1DOCKETNUMBERI2)05000-315PAGEI3)1OF3TITLEI4)FailuretoPerformTechnicalSpecificationSurveillanceAnalysesofReactorCoolantChemistrywithFuelRemovedEVENTDATE(5)LERNUMBER(6)REPORTDATE(7)OTHERFACILITIESINVOLVED(6)MONTHDAYYEARYEAR1999SEauENTIALNUMBERREVISIONMON1HDAYYEARNUMBERFACILITYNAMECookNuclearPlantUnit2FAcrLITYNAMEDOCKETNUM8ER05000-316DOCKETNUMBEROPERATINGMODE(9)20.2201(b)20.2203(a)(2)(v)X50.73(a)(2)(i)IREMENTSOF10CFRII:(CheckTHISREPORTISSUBMITTEDPURSUANTTOTHEREQUoneormore)(11)50.73(a)(2)(viii)POWERLEVEL(10)NAME20.2203(a)(1)20.2203(a)(2)(i)20.2203(a)(2)(ii)20.2203(a)(2)(iii)20.2203(a)(2)(iv)20.2203(a)(3)(i)202203(a)(3)(ii)20.2203(a)(4)50.36(c)(l)50.36(c)(2)UCENSEECONTACTFORTHISLER50.73(a)(2)(ii)50.73(a)(2)(iii)50.73(a)(2)(iv)50.73(a)(2)(v)50.73(a)(2)(vii)(12)TELEPHONENUM8ER(lrraardeAreaCoda)50.73(a)(2)(x)73.71OTHERSpec)fyinAbstractbeloworinNRCForm366AMr.LyleR.Berry,ComplianceEngineer(616)465-5901X1623COMPLETEONELINEFOREACHCOMPONENTFAILUREDESCRIBEDINTHISREPORT(13)CAUSESYSTEMCOMPONENTMANUFACTURERREPORTABLEToEPIXCAUSESYSTEMCOMPONENTMANUFACTURERREPORTABLEToEPIXSUPPLEMENTALREPORTEXPECTED14YES(Ifyes,completeEXPECTEDSUBMISSIONDATE).XNOEXPECTEDMONTHDAYYEARABSTRACT(Limitto1400spaces,i.e.,approximately15single.spacedtypewrittenlines)(16)OnFebruary16,1999,ChemistrypersonneldeterminedthatUnit2reactorcoolantsystem(RCS)chemistryhadnotbeenanalyzedforfluoridesandchlorides,asrequiredbyTechnicalSpecification(TS)SurveillanceReqoirement4.4.7,whiletheunitwasdefueled.Theanalyses,required"atalltimes,"werenotperformedfromOctober30toNovember23,1997.Unit2hasremainedinMode5or6sincethattime.Additionalinvestigationidentifiedatotaloftenperiods(6forUnit1and4forUnit2)since1989,whenthechemistryanalyseshadnotbeenperformed.TSClarification(TSC)¹54,whichhadbeenineffectsince1992,providedaninappropriateexemptionfromsamplingwhilethecorewasoff-loadedandRCScirculationwassuspended.Sincethesurveillancerequirementswerenotmet,thiseventisreportablepursuanttotherequirementsof10CFR50.73(a)(2)(i)(B),asanoperationprohibitedbytheplants'echnicalSpecifications.Therootcausesforthiseventinclude:1)ineffectivemanagementofTechnicalSpecifications,and2)ineffectiveownershipofChemistrydepartmentperformance.ChemistrypersonnelhavebeeninstructedontherequirementtofollowtheTSaswrittenwithoutrelianceontheuseofTSclarificationsorinterpretations.ThewrittenjoborderactivitiesusedtocontrolshutdownchemistrysamplingwerecorrectedtoremovereferencestotheSpentFuelPoolasanalternateRCSsamplepoint.Ineachidentifiedcasewhenanalyseswerenotdone,theaffectedunitwasatlowpressureandtemperature,andanalysescompletedpriortoandafterthemissedanalysesprovidednoindicationofanout-of-limitcondition.Baseduponthisinformation,thiseventhadminimalimpactonthehealthandsafetyofthepublic.990709012399070%fDf"APOCKOSnnO~i~

NRCFORM366AU.S.NUCLEAR~LATORYCOMMISSIONi6-1999)LICENSEEEVENTREPORT(LER)TEXTCONTINUATIONFACIUTYNAMEI1)DocKETI2)LERNUMBERI6)PAGE{3)CookNuclearPlantUnit105000-3151999SEQUENTIALNUMBER004REvisloN2OF3NUMBER01TEXT/lfmorespaceisrequired,useadditionalcopiesofNRCRearm366A/I17)ConditionsPriorToEventUnit1Mode5,ColdShutdown,at0%powerUnit2Mode5,ColdShutdown,at0%powerDescritionOfTheEventOnFebruary16,1999,ChemistrypersonneldeterminedthatUnit2reactorcoolantsystem(RCS)chemistryhadnotbeenanalyzedforfluoridesandchlorides,asrequiredbyTechnicalSpecification(TS)SurveillanceRequirement4.4.7,whiletheunitwasdefueled.Theanalyses,required"atalltimes,"werenotperformedfromOctober30toNovember23,1997.Unit2hasremainedinMode5or6sincethattime.Additional.investigationidentifiedatotaloftenperiods,forbothunits,since1989,whenthechemistryanalyseshadnotbeenperformed.TSClarification(TSC)¹54,whichhadbeenineffectsince1992,providedaninappropriateexemptionfromsamplingwhilethecorewasoff-loadedandRCScircuiationwassuspended.TSC¹54wascancelledonJuly23,1997.However,althoughtheTSCwascancelled,writtendirectionbasedupontheTSC,whichhadbeenpreviouslyestablishedbythechemistrydepartment,remainedinplace.ThisdirectionstatedthatwhenfuelwasremovedfromtheRCS,theSpentFuelPool(SFP)becametheRCSforchemistrysamplingpurposes.ThustheTSsurveillancecontinuedtobeperformedimproperly,withtheSFPsampledandanalyzedinsteadoftheRCS.CauseOfTheEventTherootcausesforthiseventinclude:1)IneffectivemanagementofTSbyLicensingandPlantmanagement,demonstratedbythefactthatNuclearLicensing/PlantManagementapprovedTSclarificationletterscontaininginappropriateTSexceptions;2)IneffectiveownershipofdepartmentperformancebyChemistrymanagement,demonstatedbytheineffectiveestablishment,communicationandenforcementofappropriatestandardsandalackofawarenessofandinvolvementindepartmentactivities.Contributingfactorstothiseventinclude:1)therelativedifficultyinobtainingrepresentativeRCSsampleswhendefueled,drainedtohalfloopconditionswithnorecirculationflowand2)ahistoryofconfusingsamplingrequirementsandrelated'interpretationsfortheRCSinthedefueledcondition.InJanuary1992,this.culminatedinTSC¹54whichaddressedthoseTechnicalSpecificationsapplicabletoconditionswhennofuelwasinthereactorpressurevesselorrefuelingcanal.TSC¹54referencedtwoearlierTSclarificationletterswrittenin1989and1990,whichweie"tobeusedtodeterminetechnicalspecificationapplicabilitywithnofuelinthereactorvesselorrefuelingcanal."UseoftheunclearguidanceinTSC¹54byChemistryDepartmentpersonneltoimplementRCSsamplingandtestingrequirementscontributedtothedescribedTSnoncompliances.AnalsisoftheEventTechnicalSpecification(TS)LimitingConditionforOperation(LCO)3.4.7requirestheReactorCoolantSystem(RCS)chemistrytobemaintainedwithinthelimitsspecifiedInTable3.4-1.Table3.4-1specifiessteadystateandtransientlimitsforRCSdissolvedoxygen,chlorideandfluorideconcentrations.NRCFORM366Ai6-1999)

NRCFORM366AU.S.NUCLEARREGULATORYCOMMISSION(6-1998)LICENSEEEVENTREPORT(LER)TEXTCONTINUATIONFACILITYNAME(1)CookNuclearPlantUnit1DQGKET(2)05000-315YEARLERNUMBER(6)SEQUENTIALREVISIONNUMBERPAGE(3)3OF3199900401TEXTiifmorespaceisrequired,useaddidonalcopiesofIVRCForm366A)(17)~Unit2TSSurveillanceRequirement(TSSR)4.4.7requiresRCSsamplesforfluoride,chlorideandoxygentobesampledatleastonceper72hours.OxygenisexemptedwhenTavgis<250'F.ApplicabilityofTS3.4.7isdefinedtobe"atalltimes".~Unit1TSSR4.4.7requiresRCSsamplesforfluoride,chlorideandoxygentobesampled3timesper7days,nottoexceed72hours.OxygenisexemptedwhenTavgis<250'F.ApplicabilityofTS3.4.7isdefinedtobe"atalltimes."ContrarytoTS,theinvestigationforthiseventidentifiedatotaloftenperiods(6forUnit1and4forUnit2)since1989,whentheRCSchemistryanalyseshadnotbeenperformed.ThisisanoperationprohibitedbyTSandisreportabiepursuanttotherequirementsof10CFR50.73(a)(2)(i).Ineachidentifiedcasewhenanalyseswerenotdone,theaffectedunitwasatlowpressureandtemperature.Ineachidentifiedcase,analysescompletedpriortoandafterthemissedanalysesprovidednoindicationofanout-of-limitcondition.ThebasisfortheTSchlorideandfluoridelimitsistoensurethatcorrosionoftheRCSisminimizedandreducethepotentialforRCSleakageorfailureduetostresscorrosion.Stresscrackingcorrosionrequiresseveralconditions.AsthefluorideandchloridelimitsintheRCSbeforeandafterdefueledperiodswerelessthan0.02ppm,weilbelowthe0.15ppmlimits,temperatureswerewellbelow200'F,andthesystemwasdepressurized,itwasunlikelytheRCSintegritywascompromised,duetocorrosion.Itisbelievedthatthiseventresultedinnoequipmentdamage.Based'uponthisinformation,therewereminimalimplicationstothehealthandsafetyofthepublicasaconsequenceofthisevent.CORRECTIVEACTIONSChemistrypersonnelhavebeeninstructedontherequirementtofollowtheTSaswrittenwithoutrelianceontheuseofTSclarificationsorinterpretations.ThewrittenjoborderactivitiesusedtocontrolshutdownchemistrysamplingwerecorrectedtoremovereferencestotheSpentFuelPoolasanalternateRCSsamplepoint.TSC¹54wascancelledonJuly23,1997.ExistingTSclarificationshavebeenrecentlyevaluatedpursuanttoAdministrativeLetter98-10andhavebeendeterminedtobeconservativeandassureplantsafety.1)ATSAmendmentforTS3.4.7willbepreparedandsubmittedtoaddre'sstheRCSsamplerequirementsfortimeswhenthereisalackofsufficientcoolantinventory.2)Asapartoftherestarteffort,DCCookisperformingdiverseprogrammaticandfunctionalareaassessmentswhichwillbeusedtoaddresstheimprovementofperformance.Forexample,theChemistryselfassessmentprogra'mwillbeenhancedtoplaceparticularemphasisonsamplingrequirementsandTS-relatedactivities.3)ExistingTechnicalSpecificationClarificationsarebeingeliminatedbyincorporationintoprocedures,TSamendmentsordeletion,asappropriate.4)AreviewoftheTechnicalSpecificationClarifications,bothactiveandcancelled,willbeperformedtoverifythatnoTSCprovidedaninterpretationtotheTSsuchthattheTSCwasusedtoprocedurallydefineanexemptionoralternativetoatechnicalspecification.TheabovecorrectiveactionswillbetrackedtocompletionundertheD.C.CookCommitmentManagt.mentProgram.ImprovementstoManagementOversightandtheTechnicalSpecificationSurveillanceProgramarebeingaddressedasdescribedintheCNPReplytoNoticeofViolationofOctober13,1998,datedMarch19,1999.SIMILAREVENTS315/98-053-00NRCFORM366A(6-1998)