ML17335A764

LER 98-004-00:on 980923,inadvertent Actuation of Efs Occurred During Surveillance Testing.Caused by Personnel Error.Personnel Involved with Event Were Counseled & Procedure Changes Were Implemented.With 981022 Ltr

ML17335A764
Person / Time
Site:	Arkansas Nuclear
Issue date:	10/22/1998
From:	SCHEIDE R H, VANDERGRIFT J ENTERGY OPERATIONS, INC.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
1CAN109801, LER-98-004-04, LER-98-4-4, NUDOCS 9810280011
Download: ML17335A764 (6)

Text

CATEGORYlyREGULATORYINFORMATIONDISTRIBUTIONSYSTEM(RIDS)ACCESSIONNBR:9810280011DOC.DATE:98/10/22NOTARIZED:NOFACIL:50-313ArkansasNuclearOne,Unit1,ArkansasPowerELightAUTH"NAME,'UTHORAFFILIATIONSCHEIDE,R.H.EntergyOperations,Inc.VANDERGRIFT,J.EntergyOperations,Inc.RECIP.NAMERECIPIENTAFFILIATIONDOCKET05000313

SUBJECT:

LER98-004-00:on980923,inadvertentactuationofEFSoccurredduringsurveillancetesting.Causedbypersonnelerror.Personnelinvolvedwitheventwerecounseled&procedurechangeswereimplemented.With981022ltr.DISTRIBUTIONCODE:IE22TCOPIESRECEIVED:LTRENCLSIZE:TITLE:50.73/50.9LicenseeEventReport(LER),IncidentRpt,,etc.NOTES:A.RECIPIENTIDCODE/NAMEPD4-1PD'NTERNAL:ACRSAEOD/SPD/RRABNRR/DE/ECGBNRR/DE/EMEBNRR/DRCH/HOHBNRR/DRPM/PECBRES/DET/EIBEXTERNAL:LSTLOBBYWARDNOACPOORE,W.NRCPDRCOPIESLTTRENCL1111111111111111111111RECIPIENTIDCODE/NAMEHILTON,NAEODSPDRABNRR/DE/EELBNRR/DRCH/HICBNRR/DRCH/HQMBNRR/DSSA/SPLBRGN4FILE01LITCOBRYCE,JHNOACQUEENER,DSNUDOCSFULLTXTCOPIESLTTRENCL1122111111111111111111NOTETOALL"BIDS"RECIPIENTS:PLEASE8LPUS0REDUCEWASTE,TC'VCURNAMORORGAIZAT'ONRMOVEDROMDIS'RIBUTIONLISTCRREDUCETHENUMBERO."COP:ES.="CEIVED"OUR'.ORORGA.'JZACN,CONTACTTHEDOCUMENTCONROFULLTEXTCONVERSIONREQUIREDTOTALNUMBEROFCOPIESREQUIRED:LTTR23ENCL23

=-EntergyEntergyOperations,Inc.1448SR333RussdhR,AR72801Te1501858.5000October22,19981CAN109801U.S.NuclearRegulatoryCommissionDocumentControlDeskMailStationOP1-17Washington,DC20555

Subject:

ArkansasNuclearOne-Unit-1DocketNo.50-313LicenseNo.DPR-51LicenseeEventReport50-313/98-004-00Gentlemen:InaccordancewithlOCFR50.73(a)(2xiv),enclosedisthesubjectreportconcerninganinadvertentactuationoftheEmergencyPeedwaterSystem.Verytrulyyours,JiD.VanderD'ctor,NuclearSafetyJDV/rsenclosure98102800ii981022PDRADGCK05000SiSSPDR U.S.NRCOctober22,19981CAN109801PAGE2cc:Mr.EllisW.MerschoFRegionalAdministratorU.S.NuclearRegulatoryCommissionRegionIV611RyanPlazaDrive,Suite400Arlington,TX76011-8064NRCSeniorResidentInspectorArkansasNuclearOneP.O.Box310London,AR72847InstituteofNuclearPowerOperations700GalleriaParkwayAtlanta,GA30339-5957 (5-92)LZCEMSEEEVENTREPORT(LER)APPROVEDSY(BIBNO.3150-0104EXPIRES5/31/95ESTIHATEDBURDENPERRESPONSETOCNIPLYllITHTHISINFORHATIOHCOLLECTIONREQUEST:50.0HRS.FORNARDCOHHENTSREGARDINGBURDENESTIHATETOTHEINFORHATIONAMDRECORDSHANAGEHENTBRANCH(IQIBB7714)~USTNUCLEARREGULATORYCOHHISSIOMgMASHIMGTON,DC205550001,ANDTOTHEPAPERMORKREDUCTIONPROJECT(31500104),OFFICEOFHANAGEHENTAMOSISGETMASHIMGTONDC20503.FACILITYNAHE(1)ArkansasNuclearOne-Unit1DOCKETNQIBER(2)05000313PAGE(3)1of3TITLE(4)InadvertentActuationOfTheEmergencyFeeduaterSystemDuringSurveillanceTestingAsAResultOfPersanefErrorHONTHDAYYEAREVENTDATE5)LERNNSER(6SEQUENTIALNQIBERREVISIONNQIBERREPORTDATE(7)OTHERFACILITIESINVOLVED(8)DOCKETNQIBERFACILITYMANEYEARHONTHDAY00102298OPERATINGHOOE(9)POUERLEVEL(10)THISREPORTISSUSHITTEDPURSUANT20.402(b)20.405(a)(1)(f)20.405(a)(1)(ll)20.405(a)(1)(Ifl)20.405(a)(1)(lv)20.405(a)(1)(v)20.405(c)50.36(c)(1)50.36(c)(2)50.73(a)(2)(l)50.73(a)(2)(fI)50.73(a)(2)(l1I)X50.73(a(2)(fv)50.73(a)(2)(v50.73(a)(2)(vlf)50.73(a)(2)(vill)(A)50.73(a)(2)(vlff)(B)50.73(a)(2)(x)TOTHEREQUIREMENTSOF10CFR:(Checkoneormore)(11)73.71b73.71(c)OTHERSpecffylnAbstractBefouandfnTextLICENSEECONTACTFORTHISLER(12)NAHERichardH.Scheide,NuclearSafetyandLlcensfngSpecialistTELEPHONENQIBER(IncludeAreaCode)501.858.4618COHPLETEONELINEFOREACHC(SIPONENTFAILUREDESCRIBEDINTHISREPORT(13)CAUSESYSTEHCNIPONENTHAMUFACTURERREPORTABLETONPRDSCAUSESYSTEHCOHPONENTHAMUFACTURERREPORTABLETONPRDSSUPPLEHENTALREPORTEXPECTED(14)YES(Ifyes,coapfeteEXPECTEDSUBHISSIONDATE)XEXPECTEDSUSHISSIONDATE(15)HONTHDAYABSTRACT(Lfmltto1400spaces,f.e.,approximately15single-spacedtypeMrittenfines)(16)OnSeptember23,1998,atapproximately1033,aninadvertentactuationoftheEmergencyFeedwaterSystem(EFW)occurredduringtheperformanceoftheEmergencyFeedwaterInitiationandControlSystem(EFZC)monthlysurveillancetest.Whenthetechniciansreachedapointintheprocedurerequiringahalftripinthe"A"and"B"EFWtraintripmodulestobereset,theleadtechnicianreadthestepwhichstated,"ResettheEFWTripModulesinChannelsAandB."Thetechnicianperformingthesteprepeatedtheinstruction;however,insteadofdepressingtheresettoggleswitch,hedepressedthe"B"EFWtripmoduleTrip1button.Thisactionsatisfiedtheactuationlogicforthe"B"trainofEFWandoneEEWpumpstarted.SincetheOTSGswereatnormallevelsandpressure,noEFWflowwasin)ected.TheEFWpumpwasimmediatelysecured,"thetripmoduleswerereset,andEFICandEFWwerereturnedtotheirnormalconfiguration.Therootcauseofthiseventwaspersonnelerror.Theindividualsinvolvedwerecounseled.Also,thiseventandexpectationsregardingself-checkingwerediscussedwithappropriatepezsonnel.NRCFORH366A(592)

(5-92)LICENSEEEVENTREPORT(LER)TEXTCONTINUATIONAPPROVEDSYNNINO.31500104EXPIRES5/31/95ESTIHATEDBURDENPERRESPONSETOCNIPLYHITHTHISINFORHATIONCOLLECTIONREQUEST:50.0NRS.FORMARDCNNIENTSREGARDINGBURDENESTIHATETOTHEINFORHATIONANDRECORDSHANAGEHENTBRANCH(HNBB7714),U.S.NUCLEARREGULATORYCOBIISSIONgNASHINGTON,DC20555-0001,ANDTOTHEPAPERNDRKREDUCTIONPROJECT(3150-0104),OFFICEOFHANAGEHENTANDBLNGETMASHINGTONDC20503.FACILITYNAHE(1)ArkanaaaNuclearOne-Unit1DOCKETIRBSER(2)0500031398LERNNBER(6)SEQUENTIALNNBERREVISIONNNBERPAGE(3)2OF3TEXT(17)PlantStatusB.Atthetimethiseventoccurred,ArkansasNuclearOneUnit1(ANO-1)wasoperatinginsteady-stateconditionsat100percentpower.EventDescriptionOnSeptember23,1998,atapproximately1033,aninadvertentactuationoftheEmergencyFeedwaterSystem(EFW)[BAJoccurredduringperformanceoftheEmergencyFeedwaterInitiationandControlSystem(EFIC)[JE]monthlysurveillancetest.TheEFWsystemisatwotrainsystemconsistingofasteamdrivenpump(P-7A)andamotordrivenpump(P-7B).EEWisactuatedtoprotectthereactorcorefromoverheatinguponlossofmainfeedwaterfloworreactorcoolantpump(RCP)circulation.EFICisafourchannelsystemthatmonitorsOnceThroughSteamGenerator(OTSG)levelsandpressures,mainfeedwaterpumpstatus,RCPstatus/andEngineeringSafeguazdsActuationSystem[JE)channels3and4inordertoinitiateEEWshouldanactuationsetpointbereached.TheEFIClogicisa"oneoutoftwotakentwiceformat.ToactuateeithertrainofEEW,atleasttwoofthefourchannelsmustbeinitiated.IfonlytwoEFICchannelsareinitiated,itispossibletohaveoneorbothtrainsofEFWactuated,dependinguponwhichchannelsareinitiated.ThemonthlyEFICChannel"B"surveillancetestwascommencedatapproximately0825onSeptember23.Atapproximately1030,thetechniciansperformingthesurveillanceverifiedthatasimulatedlowlevelinthe"A"OTSGappropriatelyinitiatedthe"Trip1"logicinthe"A"EEWTraintripmoduleandthe"Trip2"logicinthe"B"EFWTraintripmodule.AfterresettingthesimulatedlowOTSGlevel,theprocedurerequiredthattheEEWtripmodulesbereset.Theleadtechnicianreadtheprocedurestepwhichstated,"ResettheEFWTripModulesinChannelsAandB."Thetechnicianperformingthesteprepeatedtheinstruction;however,insteadofdepressingtheresettoggleswitch,hedepressedthe"B"EFWtripmoduletrip1button.Thisactionsatisfiedtheactuationlogicforthe"B"trainofEFWandP-7Astarted.SincetheOTSGswereatnormaloperatinglevelsandpressure,noEFWflowwasinfected.ThecontrolboardoperatorimmediatelysecuredP-7A.TheEEWtripmoduleswereproperlyreset,EFICandEEWwerereturnedtotheirnormalconfiguration,andthesurveillanceprocedurewasexited.Thesurveillancetestwasrecommencedat1247andsuccessfullycompletedat1422onSeptember23.C.RootCauseTherootcauseofthiseventwasdeterminedtobepersonnelerror.Thetechnicianperformingtheactionunderstoodtheprocedurestepreadbytheleadtechnicianandrepeatedit;however,hefailedtoself-checkbeforeperformingtheaction.NRCFORH366A(5-92)

.5.92)LZCBMSBBBVENTREPORT(LER)TEXTCONTINUATIONAPPROVEDBT(NBNO.150.01EXPIRES5/31/95ESTINATEDBURDENPERRESPONSETOCNIPLYMITHTHISINFORHATIONCOLLECTIONREQUEST

50.0HRS.FORMARDCQNENTSREGARDINGBURDENESTIHATETOTHEINFORNATIONANDRECORDSHANAGENENTBRANCH(NNBB7714)~U.SoNUCLEARREGULATORYCONNISSION,MASHINGTON,DC20555-0001~ANDTOTHEPAPERMQRKREDUCTIONPROJECT(3150-0104)~OFFICEOFNANAGEHENTANOBISGETMASHINGTONDC20503FACILITYNANE(1)ArkansasNuciearOne-Unit1DOCKETNIMBER(2)05000313LERNMBER(6)SEQUENTIALNSIBERREVISIONNWBERPAGE(3)30F3TEXT(17)Acontributingcausetothiseventwasaproceduralambiguity.Theprocedurestep(8.3.6.K)thatresultedintheEFWactuationsimplystated,"ResettheEEWTripModulesinChannelsAandB.Precedingstepsstipulatingmanipulationofdevicesweremorespecificwithrespecttotheactionsrequired.Forexample,step8.3.6.I.statesinpart,"PressandreleasetheResetbutton..~."Iftheprocedurehadstated,"PressandreleasetheResettoggleswitch....,"theerrormightnothaveoccurred.D.CorrectiveActionsThetechniciansinvolvedwiththiseventwerecounseledbymanagementpriortorecommencingthesurveillancetest.Theimportanceofself-checkingwasemphasized.Thiseventandmanagementexpectationsregardingself-checkingwerediscussedwiththeUnit-1InstrumentationandControlshoppersonnelduringtheirmorningmeetings.ProcedurechangeswefeimplementedtoclearlyspecifydepressingtheresettoggleswitchwhenresettingtheEFWtripmodules.TheMaintenanceHumanPerformanceCommitteewilldevelopasummaryofthelessonslearnedfromthiseventtobepresentedtotheMaintenanceDepartmentsofANO-1andANO-2.ThesummaryisexpectedtobecompletedbyDecember21,1998.E.SafetySignificanceTheEFZCandEFWsystemsperformedasdesignedaftertheinadvertentactuationsignalwasinitiated.However,sincetheOTSGswereatnormaloperatinglevelsandpressure,noEFWflowwasinitiatedandnoplantperturbationresultedfromthisevent.,Therefore,thisconditionisconsideredtobeoflowsafetysignificance.F.BasisForReportabilityThisconditionisreportablepursuantto10CFR50.73(a)(2)(iv)asanactuationofanEngineeredSafetyFeature(ESF).ItwasalsoreportedtotheNRCOperationsCenterat1336onSeptember23,1998,inaccordancewith10CFR50.72(b)(2)(ii).G.AdditionalInformationTherehavebeennoprevioussimilarLERssubmittedbyANOregardingtheinadvertentactuationofanESFasaresultofinadequateself-checkingbyMaintenancepersonnel.EnergyIndustryIdentificationSystem(EIZS)codesareidentifiedinthetextas[XX].NRCFOHN366A(5-92)