ML18040A912

LER 88-018-00:on 880824,discovered That RWCU Pump Room Ambient Temp Sensor Not Installed Per Design.Caused by Lack of Installation Detail on Design Documents for Steam Leak Detection Sys.Tech Spec Change submitted.W/880923 Ltr

ML18040A912
Person / Time
Site:	Susquehanna
Issue date:	09/23/1988
From:	BYRAM R G, RYDER T S PENNSYLVANIA POWER & LIGHT CO.
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
LER-88-018-05, LER-88-18-5, PLAS-338, NUDOCS 8809290378
Download: ML18040A912 (5)

Text

AC~~ELZRATEDDISTRIBUTIONDEMONSTRATIONSYSTEMREGULATORYINFORMATIONDISTRIBUTIONSYSTEM(RIDS)ACCESSIONNBR:8809290378DOC.DATE:88/09/23NOTARIZED-NODOCKETFACIL:50-387SusquehannaSteamElectricStation,Unit1,Pennsylva05000387"AUTH.NAMEAUTHORAFFILIATIONRYDER,T.S.PennsylvaniaPowerSLightCo.BYRAM,R.G.PennsylvaniaPower6LightCo.RECIP.NAMERECIPIENTAFFILIATIONW/8DISTRIBUTIONCODE:IE22DCOPIESRECEIVED:LTRgENCL(SIZE:TITLE:50.73LicenseeEventReport(LER),IncidentRpt,etc.iID05000387IBNOTES:LPDR2cysTranscripts.

SUBJECT:

LER88-018-00:on880824,onechannelofRWCUsysareahightempisolationinstrumentfoundinoperable.ltr.RECIPIENTIDCODE/NAMEPD1-2LATHADANI,MINTERNAL:ACRSMICHELSONACRSWYLIEAEOD/DSP/NASAEOD/DSP/TPABDEDRONRR/DEST/CEB8HNRR/DEST/ICSB7NRR/DEST/MTB9HNRR/DEST/RSB8ENRR/DLPQ/HFB10NRR/DOEA/EAB11NRR/DREP/RPB10NUDOCS-ABSTRACTRESTELFORD,J'RES/DSIR/EIBEXTERNALEG&GWILLIAMSESHSTLOBBYWARDNRCPDRNSICMAYS,GNOTES:COPIESLTTRENCL11111111111111111111111111221111114.411111122RECIPIENTIDCODE/NAMEPD1-2PDACRSMOELLERAEOD/DOAAEOD/DSP/ROABARM/DCTS/DABNRR/DEST/ADS7ENRR/DEST/ESB8DNRR/DEST/MEB9HNRR/DEST/PSBSDNRR/DEST/SGBSDNRR/DLPQ/QAB10NRR/DREP/RAB10NRR/DRIS/SIB9AREGFILE02GNlFILE01FORDBLDGHOYIALPDRNSICHARRIS,JCOPIESLTTRENCL11221122111011111111111111111111112211ARID8ATOTALNUMBEROFCOPIESREQUIRED:LTTR49ENCL48 NRCForm388(9-83)LICENSEEEVENTREPORT(LER)US.NUCLEARREGULATORYCOMMISSIONAPPROVEDOMBNO.31604104EXPIRES:8/31/SSFACILITYNAME(IISusquehannaSteamElectricStation-Unit1DOCKETNUMBER(2IPACE305000871OF0TITLE(4)OneChannelofRWCUSystemAreaHighTemperatureIsolationInstnmantFoundInoperableEVENTDATE(5)LERNUMBER(SIREPORTDATE(7)OTHERFACILITIESINVOLVED(8)MONTHDAYYEARYEAR@StOVENTIAL8ES'UMBERINUMBERRE~MONTHOAYYEARFACILITYNAMESDOCKETNUMBER(S)05000082488880180009238805000OPERATINOMODE(9)POWERLEVEL1ppP'gA"20A02(b)20.405(e)(1)(II20.405(e)(1)(N)20.405(e)0)(ill)20AOS(s)(t)(lvl20.405(s)(tI(v)20AOS(c)5028(c)(1)50.38(c)(2)X60.73(s)(21(II50.73(e)(2)(ll)50.73(s)(2)(IB)LICENSEECONTACTFORTHISLER(12)60.73(sl(2)(lv)~60.73(e)(2l(v)60.73(e)(2)(ril)50.73(e)(2)(vill)(A)50.73(sl(2)(rillI~(8)60.73(e)(2)(s)THISREPORTISSUBMITTEDPURSUANTTOTHEREOUIREMENTSOF10CFA('It(Checkonrotmoteoltbrfolios(for)(11)73.71(b)73.71(c)OTHER(SpecifyInAbttrrctbelowendInTest,HI(CForm3EBAJNAMET.S.der-Pn)erProductionEnineerTELEPHONENUMBERAREACODE717542-235COMPLETEONELINEFOREACHCOMPONENTFAILUREDESCRIBEDINTHISREPORT(13)CAUSESYSTEMCOMPONENTMANUFAC.TURERAEPORTABLETONPADSI<<RMCAUSESYSTEMCOMPONENTMANUFAC'UREREPORTABLETONPRDSo'w.waav'.t,..,,....SUPPLEMENTALREPOATEXPECTED(14)XNOYES(IIyrs,complrtrEXPECTEDSIIB4(ISSIOHOATEIABsTRAcT(Limittolr00tpecrt,I.e.,epptoslmetrlyfi(terntlnrfreprcetypewrittenllnNI(18)EXPECTEDSU8MISSIONDATE(16)MONTHDAYYEAROnAugust24,1988,itwasdiscoveredthattheHWCUPumpRoomambienttemperaturesensor,TE-G33-1N016A,wasnotinstalledperdesign.TE-G33-1N016AwasdiscoveredtohavebeeninstalledinalocationinwhichitwouldnothavedetectedaHWCUsteamleakintheHNCUPumpRoomarea.Theinstallationerrorwasdiscoveredduringawalkdownofthesteamleakdetectionsystem.ThewalkdawnhadbeeninitiatedinresponsetorecentproblemsidentifiedontheMSLDTtriplogic.Rootcauseofthiseventwasattributedtoalackofinstallationdetailonthedesigndocumentsforthesteamleakdetectionsystem.TheventilationdrawingusedforidentificationofinstrumentlocationforTE-G33-1N016Awasvagueanddidnotclearlyshawthemountinglocation.Thisresultedinthetemperaturesensorbeinginstalledinside'themainsteamtunnelexhaustductinsteadofbeinginstalledonthewalloftheHWCUpumprocm.Theeventhasbeendeterminedtobereportableper10CFR50.73(a)(2)(i)(B),inthatonetriplogicchannelfortheHNCUPumpRoomHWCUleakdetectionambienttemperaturetriplogichasbeeninoperablepriortoAugust24,1988andwouldnothavebeenabletoperformitsdesignfunction.AnewtemperatureinstrumentwasinstalledintheproperlocationwithintheHWCUPumpRoomandtheoriginaltemperatureinstrumentwasleftasasparedeviceintheMSLexhaustduct.Ataskforceisintheprocessofreviewingtheentiresteamleakdetectionsystemforadegcacyandwillbeprovidingrecammndationsforpermanentcorrectiveaction.ThefindingsofthistaskteamwillbereportedinafollawuptoLER88-017-00(Docket50-387)andthisLERwillnotbeupdated.('S0929037SSSO3PDRADOCK05003S7IPDCNRCForm3SS(983)

NRCForm366A(943)rLICENSEEEVENTREPORT(LER)TEXTCONTINUATIONU.S.NUCLEARREOULATORYCOMMISSIONAPPROVEOOMBNO.3150M(04EXPIRES:8/31/68FACILI'TYNAME(1)OOCKETNUMBER(2)LERNUMBER(6)YEAR%caEEQUENTIALiPSIREvlsloNCONNVMSCR(~"NVMCERPACE(3)Unit1SusehannaSteamElectricStation0500038788018-00030F03TEXT///morespace/sa/O/rarLusa///Oora/HRCForm365rE's/03)CORRECZIVEACZIONSArequestforenforcementdiscretionwassubnittedtotheNHCforrelieffranTechnicalSpecification3.3.2.TheprovisionsofthistechnicalspecificationrequireplacingthetripsysteminthetrippedconditionorclosingtheaffectedsystemisolationvalveseitherofwhichwouldhavecausedisolationofHhUJfranthereactorvesseluntiltheinoperablechannelofHNCUtemperatureisolationinstrumentationcouldberestoredtooperablestatus.HavingHNCUisolatedfranthereactorvesselfortheextendedperiodoftimeanticipatedtoreturntheinoperablechanneltooperablestatuswouldresultinsignificantdegradationofreactorcoolantchemistryandcouldeventuallyrequireshuttingtheunit.dawn.Therequestwasgrantedfortheperiodoftimeendingat,11:00a.m.onAugust29,1988.OnAugust26f1988anewtemperatureinstr(mentwasinstalledintheproperlocationwithintheHNCUPumpRoanandtheoriginaltemperatureinstrumentwasleftasasparedeviceatitslocationinthemainsteamtunnelexhaustduct.Appropriatedrawingswererevisedtoreflectthenewplantconfigurationforthesedevices.Ataskteamhadbeenpreviously-formulatedtoreviewthesubjectofsteamleakdetection.Anin-depthreview,willbeperformedforallleakdetectionsystemsincludingtheHNCU,ResidualHeatRemoval(RHR,EIISCode:BO),ReactorCoreIsolationCooling(RCIC,EIISCode:BN),HighPressureCoolantInjection(HPCI,EIISCode:BJ),andMSLLeakDetectionSystems.Calculationsanddesignbaseswillbereviewedforadequacyanddeterminationoftherootcauseandappropriatelong-termcorrectiveactionswillbeperformed.ThefindingsofthistaskteamwillbereportedinafollowuptoLER88-017-00(Docket50-387)andthisLERwillnotbeupdated.ADDITIONALINFORMATIONFailedCaagmnentIdentification:Notapplicable.PreviousSimilarEvents:NotApplicableNRCfORM366A(983)*U.S.GPO:(985&524538/455 NRCForm'3SBA(543)LICENSEEEVENTREPORT(LER)TEXTCONTINUATIONU.S,NUCLEARREGULATORYCOMMISSIONAPPROVEDOMSNO.3)50-GIGAEXPIRES:5/3)/SSFACILITYNAMEl)lDOCKETNUMBER(2)LERNUMBER(5)PAGE(3)Unit1SusquehannaSteamElectricStationTEXT//fmoroF/>>co/F/Fr/ro~/Iroo////Or>>/HRCForrrr35EA'F/07)DESCRIPTIONOFEVEÃZo5ooo387"EAR')k88SEOVENTIALNUMBERREVISIONNUMBER002OF03OnAugust24,1988,itwasdiscoveredthattheReactorWaterCleanup(HWCU,EIISCode:CE)PumpRoamambienttemperaturesensor,TE-G33-1N016A,wasnotinstalledperdesign.TE-G33-1N016AhadbeeninstalledinalocationinwhichitwouldnothavedetectedasteamleakintheHWCUPumpRoamarea.Theinstallationerrorwasdiscoveredduringawalkdownofthesteamleakdetectionsystem.ThewalkdownhadbeeninitiatedinresponsetorecentproblemsidentifiedontheMainSteamLine(MSL,EIISCode:SB)differentialtemperaturetriplogicwhichwerereportedinLER88-016-00(Docket50-387).CAUSEOFEVENTRootcauseofthiseventwasattributedtoalackofinstallationdetailonthedesigndocumentsforthesteamleakdetectionsystem.Theventilationdrawing(V-28-5)usedforidentificationofinstrumentlocationforTE-G33-1N016Awasvagueanddidnotclearlyshowthemountinglocation.Thisresultedinthete(T)peraturesensorbeinginstalledinsidethemainsteamtunnelexhaustductinsteadofbeinginstalledonthewalloftheRÃCUpumproan.REPORTABILITY/ANALYSISTheeventhadbeendeteznunedtobereportableper10CFR50.73(a)(2)(i)(B),inthatonetriplogicchannelfortheHNCUPumpRoomHNCUleakdetectionambientte(nperaturetriplogichasbeeninoperablepriortoAugust24,1988andwouldnothavebeenabletoperformitsdesignfunction.Section7.3.1a.2.4.1.9,6.10oftheFSARprovidediscussiononthevariousmethodsofleakdetectionavailabletodetectasteamleakassociatedwiththeHWCUsystem."DiversityoftripinitiationsignalsforRWCUsystemlinebreakisprovidedbyhighdifferentialflow,highflow,ambientanddifferentialtemperature,andReactorVessellow,lowwaterlevel,Level2.Anincreaseindifferentialflow,spacetaT)perature,differentialtemperature,orlowReactorVesselwaterlevelwillinitiateHWCUisolation."WithexceptionofthischannelandthepenetrationroomDTdetection,inoperablepriortoAugust5,1988asreportedinLER88-017-00(Docket50-'387),theremainingsafetysystemswereintacttodetectabreechinthereactorcoolantpressureboundaryfortheHNCU,system.TherewasnocaT)pranisetothehealthandsafetyofthepublicandnosafetyconsequencesoccurred.NRCFORMSBBA(543)oU.S.GPO:ISSSO52E535/EES PennsylvaniaPower&LightCompanyTwoNorthNinthStreet~Allentown,PA18101~21517705151September23,l988U.S.NuclearRegulatoryCarmissionDocumntControlDeskWashington,DC20555t[SUSQUKRNNASTEMEKZCTRICSTATIONLICENSEEEVENTREPORT88-018-00FILER41-2PLAS-338DocketNo.50-387LicenseNo.NPF-14AttachedisLicenseeEventReport88-018-00.Thiseventwasdeterminedreportableper10CFR50.73(a)(2)(i)(B)inthatonechanneloftheReactorWaterCleanupSystemAreaHighTemperatureisolationinstrumentationwas-foundtobeinoperableduetomislocationofatemperaturesensor.R.G.SuperinentofPlant-SusquehannaTSR/mjmcc:Mr.WilliamT.RussellRegionalAdministrator,RegionIU.S.NuclearRegulatoryCcmtission475AllendaleRoadKingofPrussia,PA19406Mr.FrankYoungSr.ResidentInspectorU.S.NuclearRegulatoryCcmtissionP.O.Box52Shickshinny,PA18655