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{{#Wiki_filter:NUCLEARENGINEERINGCALCULATION/STUDYCOVERSH/ETandNUCLEARRECORDSTRANSMITTALSHEETFile¹R2-11.Page1ofTotalPages~2.TYPE:CALCD3.NUMBER:EC-RISK-1065>4.REVISION:05.TRANSMITTAL¹:">6.UNIT:3>7.QUALITYCLASS:N'>8.DISCIPLiNE:3~9,DESCRIPTION:AssessmentofCommonCauseFailureProbabilitiesforUseintheSusquehannaIPE.SUPERSEDEDBY:EC-N/A13.Application:NA'>14AffectedSystemsr'fN/Athenline15ismandatory.">15.NON-SYSTEMDESIGNATOR:NA10.AlternateNumber:NA12:ComputerCodeorModelused:NARISK11.Cycle:NAFicheQDiskgAm't-IfN/Athenline14ismandatory16.AffectedDocuments:17.
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==References:==
==References:==
QSARChangeReq'd18.Equipment/Component¹:19.DBDNumber:%20.PREPAREDBYPrintNamSignatrCasimirA.kiel>22.APOVEDBY/ATEPrintNameF.G.utlerSignature>21.REVIEWEDBYPrintNameEricJebsenSignature23.ACCEPTEDBYPP8L/DATEPrintNameSignatureTOBECOMPLETEDBYNUCLEARRECORDSNR-DCSSIGNATURE/DATEADDANEWCOVERPAGEFOREACHREVISIONFORMNEPM-QA-0221-1,Revision2'erifiedFields>REQUIREDFIELDS98i'fi80050'rr80709tORaOOCXOSOOOS87PPDR l
TABLEOFCONTENTSTOPICPAGEI.TreatmentofCommonCauseFailureIIMethodforEstimatingCommonCauseFailures111.1CommonCauseFailuresofDieselGeneratorsIII.2CommonCauseFailuresofPumps.III.3CommonCausefailureofValves.IV.CommonCauseProbabilitiesAssignedtoOtherSystemsA.IDieselsA.2MotorDrivenPumpsA.3SummaryofRHRSOORsandCRs.
I.TreatmentofCommonCauseFailureCommonCauseFailures(CCF)ofsystemsandcomponentsweretreatedintheSusquehannaIPE.ThesignificantCCFsaresummarizedinVolume6oftheIPE'.Additionally,commonfailuresofECCSactuationinstrumentation(RPVwaterlevel,RPVpressureanddrywellpressure)wereincludedinthestudy.Thetreatmentofcommoncausefailurewasre-examinedinresponsetoquestionsraisedbytheNRCintheirSERconcerningthetreatmentofcommoncausefailure.There-examinationconsistedofthreeparts.First,commoncausefailureofmultipleinstrumentscausedbyInstrumentandControlTechnicianwasassessedat10.Thisestimatewasre-examined.TheinitialtreatmentofinstrumentationwasbaseduponGEanalysisperformedtoextendSurveillanceTestIntervals(STIs)andAllowedOutageTimes(AOTs).TheGEworkisbaseduponTHERPanalysisofthemultipleinstrumentationcalibration.Thisworkwasre-evaluatedbyre-examiningtheSusquehannacalibrationproceduresandthemanagementcontrolsinplacetoidentifysystematicmis-calibrationofinstrumentation.Surveillancerecordsandinstrumentfailuredatawasreviewtodetermineifacommoncausefootprintwasdiscernibleinthedata.FinallyandindependentTHERPcalculationwasperformedusingtheASEPmethod.Thisworkconfirmedtheoriginalassessmentoftheinstrumentmis-calibration.Second,areviewwasperformedtodetermineifgenericcommoncausefailureratesappliedtoSusquehannabaseduponstatisticalevaluation.Thisevaluationwaslimitedtothestationbatteries.Finally,anevaluationofequipmentwhichhasexperiencedalargenumberofmultipledemandsandnomultiplefailureswasexamined.Thissituationwastreatedingreaterdetailtoobtainamoreaccurateestimateoftheofthecommoncausefailureprobability.TheTHERPanalysisisaddressedinaseparatecalculation.Thiscalculationaddressesthesecondandthirditems.ThefollowingprobabilitiesofmultiplecomponentfailuresareprovidedfortheIPE.IIMethodforEstimatingCommonCauseFailuresThemethodusedtodeveloptheprobabilityofmultiplecomponentfailuresduetoacommoncauseisbasedupontheworkinNUREG/CR-4780,ProceduresforTreatingCommonCauseFailuresinSafetyandReliabilityStudies.ThePfactormethodisappliedtoestimatethefailureofredundantcomponentsgivenfailureofthefirst.ThePfactorisdefinedtobe:
P=conditionalprobabilitythatacauseofacomponentfailurewillbesharedbyoneormoreadditionalcomponents,giventhataspecificcomponenthasfailed,orQhlQ.,+QiEq.1Here,QistheprobabilityofmultiplefailuresQiistheprobabilityofasinglefailure.Qiscomputedusingthefollowingequation;nhl.Q=-'lhlEq.2n=thenumberoftimesmcomponentsofinterestfail,N=thenumberoftestingepisodesofmcomponentsofinterest.IfthenumberofdemandsNisunknown,thenitisestimatedfromthenumberoftestusingthefollowingformula;non-staggeredtesting:Eq.3staggeredtesting:Nm=Ng+(m-l)nm,Eq.4Here,m=thenumberofcomponentsinthetestepisode.k=thenumberofsingletestepisodes.IfthenumberofdemandsisknownthenfollowingformulaareusedforcomputingNm;non-staggeredtesting:N=NumEq.5 staggeredtestingN=NDEq.6Inthecaseofnofailures,thebinomialdistribution'isusedtoestimatethemedianfailureprobability.Uncertaintyboundsareassumedtobelognormallydistributedwiththeupperboundbeingcomputedusingthebinomialdistributionat95%confidence.Theerrorfactoriscomputedusingtheupperboundandthemedian.Theerrorfactorisusedtocomputethelowerbound.Theseformulaareappliedtoestimatetheprobabilityofmultiplefailureforthevariouscomponents.III.1CommonCauseFailuresofDieselGenerators.Commoncauseofdieselsgeneratorswasnotincludedinthe1991IPE.Thedieselgeneratordatawerereexaminedusingthecommoncausefailuremodeldescribedabove.Twocaseswereconsidered:failureoftwodieselsandfailureofall4diesels.ThedataforthedieselwasobtainedfromtheEC-RISK-0503andsubsequentdatawasobtainedfromdieselstartrecordsandfromConditionReports.ThestartrecordsandconditionreportsareincludedinAppendixA.ThisdataissummarizedinthefollowingTable.TableIDieselGeneratorStartingandFailureDataTimePeriodDemandsSingleFailureDoubleFailuresTripleFailuresQuadrupleFailures6/82-12/891/90-12/921/93-6/977/97-3/98Total300628843072'7967221751100000SEstimatedfrom1/93through6/97.Thcarc18quartersbctwccn1/93through6/97inclusive.Onthcavcragcthereare430demands/18quarters~24test/quarter.Therearc12quartersbetween1/90&12/92inclusiveor12x24288.Therare3quartersbctwce7/97&3/98inclusiveor24x372.ThedieselsaretestedunderastaggeredtestingstrategyperTechnicalSpecifications.Ifadieselfails,theotherenginesarestartedtoverifythattheyareoperable.ThereforeEquation6isusedtodeterminethenumberofsingleandmultipledemands.ThenumberoffailuresisspecificinTableIaswell.InthecaseofQuadruplefailurenofailuresarereported.InthiscasethemedianfailureprobabilityisdeterminedusingthebinomialdistributionwithNm=3796trialsandzerofailures.TheresultsofthesecalculationsarepresentedinTableII.
TableIIDieselGeneratorFailureProbabilitiesLowerBoundMedianMeanUpperBoundSingleDiesel1.66E-021.99E-021.98E-022.39E-02DoubleFailures1.75E-032.90E-032.90E-034.80E-03QuadrupleFailures4.24E-051.83E-042.72E-047.90E-04SimilardatahasnotbeencompiledfortheSusquehannabatteries.ThereforetheNUREG1150valueswereusedforthebatteries;III.2CommonCauseFailuresofPumps.TheECCSsystemsandthesystemsthatsupporttheiroperationaretestedperiodicallyonastaggeredbasispertheplantTechnicalSpecifications.IfapumpfailureoccurstestoftheremainingpumpsisnotstrictlyrequiredperTechnicalSpecifications.Reviewingthedatashowsthatthemajorityofthepumpstartsareinresponsetotheneedforsuppressionpoolcooling.Shouldapumpfailtostart,subsequentpumpswouldbestartedtosatisfytheneedforsuppressionpoolcooling.Thereforetheassumptionsassociatedwiththestaggeredteststrategyareappliedtothemotordrivenpumpdata.ThepumpstartandfailuredataissummarizedinTableIII.Therewerenocasesofmultiplepumpfailures.Adoublefailureisassignedtothetwopumpfailurecasetoconservativelyaccountforadoublepumpfailureprecursor.AfailureofasingleESWpumpoccurredduetoendbellerosion.Theerosionwascausebyoperatingthesepumpsatverylowflows.Inspectionoftheotherpumpsidentifiedendbellerosion,thoughtoamuchlessdegree.InfactthepumpswerestilloperableandpassedtheASMEtest.Howeverafailureoftwopumpsisincludedtoaccountfortheprecursor.TableIVpresentsrunhoursandfailuretorundata.Commoncausefailuretorunisnottreatedduetheimplausibilityoftwopumpsfailingatthesametimewhileoperating,unlessthefailureisattributedtoanexternalevent.DetailedinformationisprovidedinAppendixA.
TableIIIPumpDemandandFailureDataSystemRHRCSRHRSWESWTotalTotal343215533606542214012SingleDoubleMultiple00000010191Usingthisdata,afailureprobabilitywascomputedforeachsystem'spumpsandfortheaggregate.TheresultsofthesecalculationsareshowninTableIV,TableIVFailureProbabilityofPumpsProbabilityLowerMedianMeanUpperErrorFactor5.7E-041.4E-031.7E-033.5E-032.5ESW9.6E-041.6E-031.7E-032.7E-031.7RHRSW1.4E-032.4E-032.5E-034.0E-031.7CoreSpray1.0E-044.4E-046.6E-041.9E-034,4Aggregate9.9E-041.4E-031.4E-032.0E-031.4Withexceptionofthecorespraypumps,thefailureratesofthesespumpsaresupriseinglyclose.Thereforeallpumpswillbeassignedthesameaggregatefailureprobability.Examiningthemeanandboundsofthecorespraypumpsonecouldconcludethattheyarefromamorereliablestatisticalpopulation.Howevertheyarebeingassignedtheaggregatefailureprobabilitywhichisconservative.Thecommoncausefailureprobabilityformultiplepumpstostartwascomputedusingtheassumptionsassociatedwithstaggeredtestingandtheaboveaggregateddata.TheseresultsarereportedinTableV.Thesevaluesaretreatedasmeanvaluesforthesingleanddoublefailures.Theboundareestimatedusingthebinominaldistribution.Thisdataisusedtocalculatethelognormalmedianandlowerbound.Therearenoquadruplepumpfailures.Thereforethebinomialdistributionisusedtoestimatethemedianandbound.Theseestimatesarethenusedtoestimatethemeanassumingthelognormaldistribution.
TableVCommonCauseFailureProbabilitiesforPumpsProbabilitySingleDoubleQuadLowerMedianMeanUpper8.2E-041.3E-031.4E-032.1E-032.6E-051.2E-047.1E-053.4E-043.8E-064.9E-057.3E-052.1E-04ErrorFactor1.62.844Failuretorundatavalueswerealsocomputedforthepumpsidentifiedabove.Theruntimeandfailuredataweretaken&omthesamedatasourcesasthestartdata.ThisdataisprovidedinTablesVITablesVII.TableVIPumpRunHoursSystemRHRCSRHRSWESWTotalTotal616502841870774130685291527RunFailuresTableVIIFailuretoRunProbabilityLowerMedianMeanUpperErrorFactor1.4E-068.1E-061.4E-054.9E-056.0ESW8.3E-062.6E-053.1E-057.8E-053.1RHRSW1.2E-067.1E-061.2E-054.2E-056.0CoreSpray2.9E-061.8E-053.0E-051.1E-046.0Aggregate3.7E-061.1E-051.4E-053.5E-053.1 III.3CommonCausefailureofValves.Commoncausefailureprobabilityformultiplevalvesisbasedstaggeredtesting.Themajorityofthedemandsareforsuppressionpoolcooling.Failureofavalvetoopenwouldresultintheinabilitytooperatesuppressionpoolingusingthisparticulardivision.ShouldthisoccuretheoperatorwouldinitiatetheredundantloopofRHR.TheconditionalprobabilitieswerederivedfromRHRvalvefailuredata.Areviewofplantdata,showsthattheRHRvalveswerestrokedabout11,400times.EighteenRHRvalvefailureswereidentifiedintheplantrecords.Nomultiplevalvefailurewereidentified.Usingthisdatathefailureprobabilityiscomputedwithuncertaintybounds.Theboundsarederived&omthePoissondistribution.ThemedianiscomputedbyapplyingthemeanandtheboundsgeneratedusingthePoissontothelognormaldistribution.lower=9.4x,median=1.5x10mean=1.6x10upper=2.5x10.Sincenomultiplefailuresofthevalveswereobserved,0.5doublefailuresareassignedtocomputetheconditionalprobability(two/one):p(two/one)=0.5/18=2.3x10andtheprobabilityoftwovalvesfailingbecomes:lower=1.2x10median=3.5x10mean=4.4x10upper=1.1x10.IV.CommonCauseProbabilitiesAssignedtoOtherSystemsCommoncauseprobabilitieswereassignedtoothercomponents.Theassignmentsweremadebasedoneither;otherexistingdataorscreeningvalues.ThesevaluesareprovidedinTableVIII.


TableVIIICommonCauseFailureRatesofOtherComponentsEventNameDescriptionlowermeanupperTSDVFailureoftwoscramdischargevolumes.Singlebased4.8E-8uponNUREG0460,P0.01baseduponPP&LreportsNPE-89-003&RA-1-NA-0061.8E-74.4E-7SRV1&SRVIINADSSRVMCLPPCCFSLCPFailureofsecondandthirdgivenfirst.P=1.0NUREG2728Failureof10non-ADSASMEcodesafetyreliefvalvesgivenfailureoffailureof6ADSvalves.P=0.5assumed.Failureoflowpressurepermissivecircuit.NUREG1150valueused.CommoncausefailureofSLCSpumps.AssumedP=0.05baseduponotherpumpdata.2.6E-60.131.4E-55.6E-61.1E-50.55.3E-41.8E-42.4E-510.1.9E-35.6E-4CCFTDPCommonCausefailureofHPCI&RCICNPE-86-003&NUREG/CR-2497CCFCTVFailureofbothdivisionsofRHR/IQIRSWcrosstievalves0.00051.2E-51.9E-34.4E-50.0045I.IEA References'usquehannaIPEVolumeVISupplementalInformation,Section3.Deccmbcr19912AnalysisofComponentOutageandFailureDataforthcSusquehannaIPE.EC-RISK@503,RcvITechnicalSpecificationImprovementMethodology(withDemonstrationforBWRECCSActuationInstrumentation)PartINEDE-30936P-A,ClassIll,Dec.19884HumanErrorProbabilityforInstrumentCalibrationUsingASEPMethod,PP&LRecordedcaclulationEC-RISK-10645ProceduresforTreatingCommonCauseFailuresinSafetyandReliabilityStudies,NUREG/CR<780VolumnsI&26EC-RISK-0503Rcv.I;EC-RISK-1060,AcccptanccNumbersforRiksSignificantSystemStructuresandComponents,CzyszandKukielka;&SOORs AppendixASupportingDataA.1DieselsA.2MotorDrivenPumpsA.3SummaryofRHRSOORsandCRs.
QSARChangeReq'd18.Equipment
A.1DieselGeneratorData
/Component
&#xb9;:19.DBDNumber:%20.PREPAREDBYPrintNamSignatrCasimirA.kiel>22.APOVEDBY/ATEPrintNameF.G.utlerSignature
>21.REVIEWEDBYPrintNameEricJebsenSignature 23.ACCEPTEDBYPP8L/DATE PrintNameSignature TOBECOMPLETED BYNUCLEARRECORDSNR-DCSSIGNATURE/DATE ADDANEWCOVERPAGEFOREACHREVISIONFORMNEPM-QA-0221-1, Revision2'erifiedFields>REQUIREDFIELDS98i'fi80050
'rr80709tORaOOCXOSOOOS87PPDR l
TABLEOFCONTENTSTOPICPAGEI.Treatment ofCommonCauseFailureIIMethodforEstimating CommonCauseFailures111.1CommonCauseFailuresofDieselGenerators III.2CommonCauseFailuresofPumps.III.3CommonCausefailureofValves.IV.CommonCauseProbabilities AssignedtoOtherSystemsA.IDieselsA.2MotorDrivenPumpsA.3SummaryofRHRSOORsandCRs.
I.Treatment ofCommonCauseFailureCommonCauseFailures(CCF)ofsystemsandcomponents weretreatedintheSusquehanna IPE.Thesignificant CCFsaresummarized inVolume6oftheIPE'.Additionally, commonfailuresofECCSactuation instrumentation (RPVwaterlevel,RPVpressureanddrywellpressure) wereincludedinthestudy.Thetreatment ofcommoncausefailurewasre-examined inresponsetoquestions raisedbytheNRCintheirSERconcerning thetreatment ofcommoncausefailure.There-examination consisted ofthreeparts.First,commoncausefailureofmultipleinstruments causedbyInstrument andControlTechnician wasassessedat10.Thisestimatewasre-examined.
Theinitialtreatment ofinstrumentation wasbaseduponGEanalysisperformed toextendSurveillance TestIntervals (STIs)andAllowedOutageTimes(AOTs).TheGEworkisbaseduponTHERPanalysisofthemultipleinstrumentation calibration.
Thisworkwasre-evaluated byre-examining theSusquehanna calibration procedures andthemanagement controlsinplacetoidentifysystematic mis-calibration ofinstrumentation.
Surveillance recordsandinstrument failuredatawasreviewtodetermine ifacommoncausefootprintwasdiscernible inthedata.Finallyandindependent THERPcalculation wasperformed usingtheASEPmethod.Thisworkconfirmed theoriginalassessment oftheinstrument mis-calibration.
Second,areviewwasperformed todetermine ifgenericcommoncausefailureratesappliedtoSusquehanna baseduponstatistical evaluation.
Thisevaluation waslimitedtothestationbatteries.
Finally,anevaluation ofequipment whichhasexperienced alargenumberofmultipledemandsandnomultiplefailureswasexamined.
Thissituation wastreatedingreaterdetailtoobtainamoreaccurateestimateoftheofthecommoncausefailureprobability.
TheTHERPanalysisisaddressed inaseparatecalculation.
Thiscalculation addresses thesecondandthirditems.Thefollowing probabilities ofmultiplecomponent failuresareprovidedfortheIPE.IIMethodforEstimating CommonCauseFailuresThemethodusedtodeveloptheprobability ofmultiplecomponent failuresduetoacommoncauseisbasedupontheworkinNUREG/CR-4780, Procedures forTreatingCommonCauseFailuresinSafetyandReliability Studies.ThePfactormethodisappliedtoestimatethefailureofredundant components givenfailureofthefirst.ThePfactorisdefinedtobe:
P=conditional probability thatacauseofacomponent failurewillbesharedbyoneormoreadditional components, giventhataspecificcomponent hasfailed,orQhlQ.,+QiEq.1Here,Qistheprobability ofmultiplefailuresQiistheprobability ofasinglefailure.Qiscomputedusingthefollowing equation; nhl.Q=-'lhlEq.2n=thenumberoftimesmcomponents ofinterestfail,N=thenumberoftestingepisodesofmcomponents ofinterest.
IfthenumberofdemandsNisunknown,thenitisestimated fromthenumberoftestusingthefollowing formula;non-staggered testing:Eq.3staggered testing:Nm=Ng+(m-l)nm,Eq.4Here,m=thenumberofcomponents inthetestepisode.k=thenumberofsingletestepisodes.
Ifthenumberofdemandsisknownthenfollowing formulaareusedforcomputing Nm;non-staggered testing:N=NumEq.5 staggered testingN=NDEq.6Inthecaseofnofailures, thebinomialdistribution'is usedtoestimatethemedianfailureprobability.
Uncertainty boundsareassumedtobelognormally distributed withtheupperboundbeingcomputedusingthebinomialdistribution at95%confidence.
Theerrorfactoriscomputedusingtheupperboundandthemedian.Theerrorfactorisusedtocomputethelowerbound.Theseformulaareappliedtoestimatetheprobability ofmultiplefailureforthevariouscomponents.
III.1CommonCauseFailuresofDieselGenerators.
Commoncauseofdieselsgenerators wasnotincludedinthe1991IPE.Thedieselgenerator datawerereexamined usingthecommoncausefailuremodeldescribed above.Twocaseswereconsidered:
failureoftwodieselsandfailureofall4diesels.ThedataforthedieselwasobtainedfromtheEC-RISK-0503 andsubsequent datawasobtainedfromdieselstartrecordsandfromCondition Reports.Thestartrecordsandcondition reportsareincludedinAppendixA.Thisdataissummarized inthefollowing Table.TableIDieselGenerator StartingandFailureDataTimePeriodDemandsSingleFailureDoubleFailuresTripleFailuresQuadruple Failures6/82-12/89 1/90-12/92 1/93-6/97 7/97-3/98 Total300628843072'7967221751100000SEstimated from1/93through6/97.Thcarc18quartersbctwccn1/93through6/97inclusive.
Onthcavcragcthereare430demands/18 quarters~24test/quarter.
Therearc12quartersbetween1/90&12/92inclusive or12x24288.Therare3quartersbctwce7/97&3/98inclusive or24x372.Thedieselsaretestedunderastaggered testingstrategyperTechnical Specifications.
Ifadieselfails,theotherenginesarestartedtoverifythattheyareoperable.
Therefore Equation6isusedtodetermine thenumberofsingleandmultipledemands.ThenumberoffailuresisspecificinTableIaswell.InthecaseofQuadruple failurenofailuresarereported.
Inthiscasethemedianfailureprobability isdetermined usingthebinomialdistribution withNm=3796trialsandzerofailures.
Theresultsofthesecalculations arepresented inTableII.
TableIIDieselGenerator FailureProbabilities LowerBoundMedianMeanUpperBoundSingleDiesel1.66E-021.99E-021.98E-022.39E-02DoubleFailures1.75E-032.90E-032.90E-034.80E-03Quadruple Failures4.24E-051.83E-042.72E-047.90E-04SimilardatahasnotbeencompiledfortheSusquehanna batteries.
Therefore theNUREG1150valueswereusedforthebatteries; III.2CommonCauseFailuresofPumps.TheECCSsystemsandthesystemsthatsupporttheiroperation aretestedperiodically onastaggered basispertheplantTechnical Specifications.
Ifapumpfailureoccurstestoftheremaining pumpsisnotstrictlyrequiredperTechnical Specifications.
Reviewing thedatashowsthatthemajorityofthepumpstartsareinresponsetotheneedforsuppression poolcooling.Shouldapumpfailtostart,subsequent pumpswouldbestartedtosatisfytheneedforsuppression poolcooling.Therefore theassumptions associated withthestaggered teststrategyareappliedtothemotordrivenpumpdata.Thepumpstartandfailuredataissummarized inTableIII.Therewerenocasesofmultiplepumpfailures.
Adoublefailureisassignedtothetwopumpfailurecasetoconservatively accountforadoublepumpfailureprecursor.
AfailureofasingleESWpumpoccurredduetoendbellerosion.Theerosionwascausebyoperating thesepumpsatverylowflows.Inspection oftheotherpumpsidentified endbellerosion,thoughtoamuchlessdegree.InfactthepumpswerestilloperableandpassedtheASMEtest.Howeverafailureoftwopumpsisincludedtoaccountfortheprecursor.
TableIVpresentsrunhoursandfailuretorundata.Commoncausefailuretorunisnottreatedduetheimplausibility oftwopumpsfailingatthesametimewhileoperating, unlessthefailureisattributed toanexternalevent.Detailedinformation isprovidedinAppendixA.
TableIIIPumpDemandandFailureDataSystemRHRCSRHRSWESWTotalTotal343215533606542214012SingleDoubleMultiple00000010191Usingthisdata,afailureprobability wascomputedforeachsystem'spumpsandfortheaggregate.
Theresultsofthesecalculations areshowninTableIV,TableIVFailureProbability ofPumpsProbability LowerMedianMeanUpperErrorFactor5.7E-041.4E-031.7E-033.5E-032.5ESW9.6E-041.6E-031.7E-032.7E-031.7RHRSW1.4E-032.4E-032.5E-034.0E-031.7CoreSpray1.0E-044.4E-046.6E-041.9E-034,4Aggregate 9.9E-041.4E-031.4E-032.0E-031.4Withexception ofthecorespraypumps,thefailureratesofthesespumpsaresupriseingly close.Therefore allpumpswillbeassignedthesameaggregate failureprobability.
Examining themeanandboundsofthecorespraypumpsonecouldconcludethattheyarefromamorereliablestatistical population.
Howevertheyarebeingassignedtheaggregate failureprobability whichisconservative.
Thecommoncausefailureprobability formultiplepumpstostartwascomputedusingtheassumptions associated withstaggered testingandtheaboveaggregated data.TheseresultsarereportedinTableV.Thesevaluesaretreatedasmeanvaluesforthesingleanddoublefailures.
Theboundareestimated usingthebinominal distribution.
Thisdataisusedtocalculate thelognormal medianandlowerbound.Therearenoquadruple pumpfailures.
Therefore thebinomialdistribution isusedtoestimatethemedianandbound.Theseestimates arethenusedtoestimatethemeanassumingthelognormal distribution.
TableVCommonCauseFailureProbabilities forPumpsProbability SingleDoubleQuadLowerMedianMeanUpper8.2E-041.3E-031.4E-032.1E-032.6E-051.2E-047.1E-053.4E-043.8E-064.9E-057.3E-052.1E-04ErrorFactor1.62.844Failuretorundatavalueswerealsocomputedforthepumpsidentified above.Theruntimeandfailuredataweretaken&omthesamedatasourcesasthestartdata.ThisdataisprovidedinTablesVITablesVII.TableVIPumpRunHoursSystemRHRCSRHRSWESWTotalTotal616502841870774130685291527RunFailuresTableVIIFailuretoRunProbability LowerMedianMeanUpperErrorFactor1.4E-068.1E-061.4E-054.9E-056.0ESW8.3E-062.6E-053.1E-057.8E-053.1RHRSW1.2E-067.1E-061.2E-054.2E-056.0CoreSpray2.9E-061.8E-053.0E-051.1E-046.0Aggregate 3.7E-061.1E-051.4E-053.5E-053.1 III.3CommonCausefailureofValves.Commoncausefailureprobability formultiplevalvesisbasedstaggered testing.Themajorityofthedemandsareforsuppression poolcooling.Failureofavalvetoopenwouldresultintheinability tooperatesuppression poolingusingthisparticular division.
Shouldthisoccuretheoperatorwouldinitiatetheredundant loopofRHR.Theconditional probabilities werederivedfromRHRvalvefailuredata.Areviewofplantdata,showsthattheRHRvalveswerestrokedabout11,400times.EighteenRHRvalvefailureswereidentified intheplantrecords.Nomultiplevalvefailurewereidentified.
Usingthisdatathefailureprobability iscomputedwithuncertainty bounds.Theboundsarederived&omthePoissondistribution.
Themedianiscomputedbyapplyingthemeanandtheboundsgenerated usingthePoissontothelognormal distribution.
lower=9.4x,median=1.5x10mean=1.6x10upper=2.5 x10.Sincenomultiplefailuresofthevalveswereobserved, 0.5doublefailuresareassignedtocomputetheconditional probability (two/one):
p(two/one)
=0.5/18=2.3x10andtheprobability oftwovalvesfailingbecomes:lower=1.2x10median=3.5x10mean=4.4x10upper=1.1 x10.IV.CommonCauseProbabilities AssignedtoOtherSystemsCommoncauseprobabilities wereassignedtoothercomponents.
Theassignments weremadebasedoneither;otherexistingdataorscreening values.ThesevaluesareprovidedinTableVIII.  


Kukielka,CasimirFrom:To:
TableVIIICommonCauseFailureRatesofOtherComponents EventNameDescription lowermeanupperTSDVFailureoftwoscramdischarge volumes.Singlebased4.8E-8uponNUREG0460,P0.01baseduponPP&LreportsNPE-89-003
&RA-1-NA-006 1.8E-74.4E-7SRV1&SRVIINADSSRVMCLPPCCFSLCPFailureofsecondandthirdgivenfirst.P=1.0NUREG2728Failureof10non-ADSASMEcodesafetyreliefvalvesgivenfailureoffailureof6ADSvalves.P=0.5assumed.Failureoflowpressurepermissive circuit.NUREG1150valueused.CommoncausefailureofSLCSpumps.AssumedP=0.05baseduponotherpumpdata.2.6E-60.131.4E-55.6E-61.1E-50.55.3E-41.8E-42.4E-510.1.9E-35.6E-4CCFTDPCommonCausefailureofHPCI&RCICNPE-86-003
&NUREG/CR-2497 CCFCTVFailureofbothdivisions ofRHR/IQIRSW crosstievalves0.00051.2E-51.9E-34.4E-50.0045I.IEA References
'usquehanna IPEVolumeVISupplemental Information, Section3.Deccmbcr19912AnalysisofComponent OutageandFailureDataforthcSusquehanna IPE.EC-RISK@503, RcvITechnical Specification Improvement Methodology (withDemonstration forBWRECCSActuation Instrumentation)
PartINEDE-30936P-A, ClassIll,Dec.19884HumanErrorProbability forInstrument Calibration UsingASEPMethod,PP&LRecordedcaclulation EC-RISK-1064 5Procedures forTreatingCommonCauseFailuresinSafetyandReliability Studies,NUREG/CR<780 VolumnsI&26EC-RISK-0503 Rcv.I;EC-RISK-1060, Acccptancc NumbersforRiksSignificant SystemStructures andComponents, CzyszandKukielka;
&SOORs AppendixASupporting DataA.1DieselsA.2MotorDrivenPumpsA.3SummaryofRHRSOORsandCRs.
A.1DieselGenerator Data
: Kukielka, CasimirFrom:To:


==Subject:==
==Subject:==
Date:D'Angelo,VioletR.Kukielka,CasimirRE:DieselStartsMonday,September29,199710:42AMForD/GA,8,C,D5minat1000KW10minat2000KW10minat3000KW210minat4000KW15minat500KWforcooldownbeforeS/DForD/GE5minat1375KW10minat2750KW220minat4000KW15minat500KWforcooldownbeforeS/Drg5From:Kukielka,CasimirTo:D'Angelo,VioletR.
Date:D'Angelo, VioletR.Kukielka, CasimirRE:DieselStartsMonday,September 29,199710:42AMForD/GA,8,C,D5minat1000KW10minat2000KW10minat3000KW210minat4000KW15minat500KWforcooldownbeforeS/DForD/GE5minat1375KW10minat2750KW220minat4000KW15minat500KWforcooldownbeforeS/Drg5From:Kukielka, CasimirTo:D'Angelo, VioletR.


==Subject:==
==Subject:==
RE:DieselStartsDate:Friday,September26,19974:33PMHaViolet,Whenyouguyshavealoadrun.HowIongistheloadrun/ThanksCasFrom:D'Angelo,VioletR.To:Kukielka,Casimir
RE:DieselStartsDate:Friday,September 26,19974:33PMHaViolet,Whenyouguyshavealoadrun.HowIongistheloadrun/ThanksCasFrom:D'Angelo, VioletR.To:Kukielka, Casimir


==Subject:==
==Subject:==
FW:DieselStartsDate:Thursday,September25,19973:41PMSeeattachedinfo.From:Paley,RobertM.To:D'Angelo,VioletR.
FW:DieselStartsDate:Thursday, September 25,19973:41PMSeeattachedinfo.From:Paley,RobertM.To:D'Angelo, VioletR.


==Subject:==
==Subject:==
FW:Date:Thursday,September25,19973:22PMFrom:Kukielka,CasimirTo:Paley,RobertM.Date:Thursday,September25,19972:26PMBob,Ihavedieselstartsthrough3rdquarter96.Doyouguyshave4thquarter96tothepresentsIfsocouldyoupleasesendittome.Page1 1"Quarter1993IIy(~c.l~pf+41~DIESELGENERATORRELIABILITYRESULTSJAN93-DEC95BYQUARTERSDIESELGENERATORABCDESTARTATTEMPTS5434.4STARTFAILURES00000LOAD-RUNATTEMPTS5333LOAD-RUNFAILURES00000STARTRELIABILITY100%100%)PP100%1PP%2ndQuarter1993DIESELGENERATORABCDESTARTATTEMPTS35537STARTFAILURES000~00LOAD-RUNATTEMPTS3535LOAD-RUNFAILURES00000STARTRELIABILITY100%)PP100%100%100%3rdQuarter1993DIESELGENERATORAB.CDESTARTATI'EMPTS63334I~1STARTFAILURES00000LOAD-RUNATTEMPTS53324LOAD-RUNFAILURES00000STARTRELIABILITY100%)PP100%100%100%STARTTTEMPTS/748ABFileName:DQMRR4Quarter1993DIESELQENERATORASTART~LOAD-RUNE:0AD-RUNFAILURES>ATTEMPTS+FAIDURES5iIo4'0'XPage6of)0SARTRELIABILITY/')00%/I'01000/C4/26/96 d~~%AI~d&lbJVd~d4'"urter1993(OCTOBER1993TOSEPTEMBER1996)ROLLING36MONTHRELIABILITYDATAMAINTENANCERULEREPORTDIESELGENERATORRELIABILITYRESULTSDIESELGENERATORA8CDE1atSTARTATTEMPTS74843;JSTARTFAILURES00000LOAD-RUNATTEMPTS54643LOAD-RUNFAILURES00000STARTRELIABILITY100%1PP%100%1PP%100%DIESELGENERATORABCDESTARTATTEMPTS36461d'd'dSTARTFAILURES~00000LOAD-RUNATTEMPTS34341'OAD-RUNFAILURES00000STARTRELIABILITY100%100%100%100%100%DIESEL'ENERATORABCDESTARTATTEMPTS866912STARTFAILURES00000LOAD-RUNATTEMPTS45458LOAD-RUNFAILURES00000STARTRELIABILITY'00%1O0%100%tt100%IO0%DIESELGENERATORABCDEldSTARTATTEMPTS34245liSTARTFAILURES00000LOAD-RUNATTEMPTS332'5LOAD-RUNFAILURES00000STARTRELIABILITY100%100%100%100%100%FileName:98Q3REP.OOCdpage8of107/14/98 4ar1994ROLLG36MONTHRELIABILITYATADIESELGENERATORABCDESTARTATTEMPTS53436a,lSTARTFAILURES00000LOAD-RUNATTEMPTS53336LOAD-RUNFAILURES00000STARTRELIABILITY100%100%100%100%100%1Me5DIESELGENERATORABCDESTARTATTEMPTS33435/5STARTFAILURES00000LOAD-RUNATTEMPTS33435LOAD-RUNFAILURES00000STARTRELIABILITY1PP100%100%1PPopo100%~er1995DIESELGENERATORABCDESTARTATTEMPTS2666:/.p7STARTFAILURES00000LOAD-RUNATTEMPTS2445LOAD-RUNFAILURES00000STARTRELIABILITY10010Q%pp100%100%3rdarter199DIESELGENERATORABCDESTARTATTEMPTS45533STARTFAILURES00'0LOAD-RUNATTEMPTS34323LOAD-RUNFAILURES00000STARTRELIABILITY100%100%100%100%100%FileName:96Q3REP.DOCPage9of10'/14/96 ROLLING36MONTHREIIABILITYDATAI4'"uarter1995DIESELGENERATORABCDESTARTATTEMPTS976663YSTARTFAILURES00000LOAD-RUN.ATTEMPTS76456LOAD-RUNFAILURES00000STARTRELIABILITY100%100%100%100%100'l1uarter1996DIESELGENERATORABCDESTARTATTEMPTS34258STARTFAILURES00000LOAD-RUNATTEMPTS33246LOAD-RUNFAILURES00000STARTRELIABILITY100%100%1PP%100%1ppo2nduarter1996DIESELGENERATORABCDESTARTATTEMPTS63333/$STARTFAILURES00000LOAD-RUNATTEMPTS63333LOAD-RUNFAILURES00000STARTRELIABILITY100%100%100%100lo100%3rduarter1996DIESELGENERATORABCESTARTATTEMPTS445443.lSTARTFAILURES00000LOAD-RUNATTEMPTS44544LOAD-RUNFAILURES00000STARTRELIABILITY100%100%100%100%100oloFileName:08Q3REP,DOCPage10af10~O)&c7/14/96 MAINTENANCERULEREPORTDIESELGENERATORAVAILABILITYRESULTS4'"QUARTER19g6''"""""'""""""""""""DIESEL''':::::;.:I:::.::,';:";;<":""':":"":::::';::I'gHOURSIOUT:::OF...'SERVICE(0.26Hrs3.99Hrs2208Hrs2208HrsDESPARE3.38Hrs0.90Hrs0.58Hrs2208Hrs2208Hrs2208HrsMAINTENANCERULEREPORTDIESELGENERATORRELIABILITYRESULTS4"QUARTER1996"'jgi',~;::,':DIESEL~"'@:",-'"'':::@P':@@START"i~'""-':<"<."-4N,':,START":""~~~)4,"""L'OAD'-RUHR>Pk%'rgLPADWUN!.".";'"'ka'i'GENERATOR!'Ki5'i;~'ATTEMPTS'N';!':iij'-')FAIL~URESI!~X8;:iAT~TEMPTS4~5MKFAILURESh:"';-".,"AD(1)ESPARE)0*00000000(1)On12/10/96,theD/GEwasalignedasasparedieselandwasNOTsubstitutedforanydieselwhenthevalidstartfailureoccurred.
FW:Date:Thursday, September 25,19973:22PMFrom:Kukielka, CasimirTo:Paley,RobertM.Date:Thursday, September 25,19972:26PMBob,Ihavedieselstartsthrough3rdquarter96.Doyouguyshave4thquarter96tothepresentsIfsocouldyoupleasesendittome.Page1 1"Quarter1993IIy(~c.l~pf+41~DIESELGENERATOR RELIABILITY RESULTSJAN93-DEC95BYQUARTERSDIESELGENERATOR ABCDESTARTATTEMPTS5434.4STARTFAILURES00000LOAD-RUNATTEMPTS5333LOAD-RUNFAILURES00000STARTRELIABILITY 100%100%)PP100%1PP%2ndQuarter1993DIESELGENERATOR ABCDESTARTATTEMPTS35537STARTFAILURES000~00LOAD-RUNATTEMPTS3535LOAD-RUNFAILURES00000STARTRELIABILITY 100%)PP100%100%100%3rdQuarter1993DIESELGENERATOR AB.CDESTARTATI'EMPTS 63334I~1STARTFAILURES00000LOAD-RUNATTEMPTS53324LOAD-RUNFAILURES00000STARTRELIABILITY 100%)PP100%100%100%STARTTTEMPTS/748ABFileName:DQMRR4Quarter1993DIESELQENERATOR ASTART~LOAD-RUNE:0AD-RUNFAILURES>ATTEMPTS
SUSQUEHANNASTEAMELECTRICSTATION97Q1MAINTENANCERULEREPORTDIESELGENERATORAVAILABILITYRESULTSfor1QUARTER1997'::;:"T$.-';,:::';p'~>Ri+<'.i:;DIESEL":;.+<j'":"'"'"4i'4g5lHOURS''OUT:.OF'SERVICE%I5P'(,::5,"~PDIESEL<HOURS!INN!i'i'-""'~DA11.95Hrs13.20Hrs14.37Hrs0.18Hrs2160Hrs2160Hrs2160Hrs2160HrsESPARE0.00Hrs2160HrsDIESELGENERATORRELIABILITYRESULTSfor1QUARTER1997zSPARE~9.::~:..:g";;.:.DIESEL';:$~"-''-'i::<<j'::.;!j'.!NSTART,:g,:::",'>>';k!'-"'.GENERATOR:,':.~~~'-ki%',ATTEMPTS"4:.""j:,"::ii"'.;:"STARTjg~P<:,"~@,"<<:L'OADWUN;.'.;.""00000Pk(L'OAD-'.RUN>".;;0!.'FAIL'ORES5~:00000  
+FAIDURES5iIo4'0'XPage6of)0SARTRELIABILITY/')
00%/I'01000/C4/26/96 d~~%AI~d&lbJVd~d4'"urter1993(OCTOBER1993TOSEPTEMBER 1996)ROLLING36MONTHRELIABILITY DATAMAINTENANCE RULEREPORTDIESELGENERATOR RELIABILITY RESULTSDIESELGENERATOR A8CDE1atSTARTATTEMPTS74843;JSTARTFAILURES00000LOAD-RUNATTEMPTS54643LOAD-RUNFAILURES00000STARTRELIABILITY 100%1PP%100%1PP%100%DIESELGENERATOR ABCDESTARTATTEMPTS36461d'd'dSTARTFAILURES~00000LOAD-RUNATTEMPTS34341'OAD-RUN FAILURES00000STARTRELIABILITY 100%100%100%100%100%DIESEL'ENERATOR ABCDESTARTATTEMPTS866912STARTFAILURES00000LOAD-RUNATTEMPTS45458LOAD-RUNFAILURES00000STARTRELIABILITY
'00%1O0%100%tt100%IO0%DIESELGENERATOR ABCDEldSTARTATTEMPTS34245liSTARTFAILURES00000LOAD-RUNATTEMPTS332'5LOAD-RUNFAILURES00000STARTRELIABILITY 100%100%100%100%100%FileName:98Q3REP.OOC dpage8of107/14/98 4ar1994ROLLG36MONTHRELIABILITY ATADIESELGENERATOR ABCDESTARTATTEMPTS53436a,lSTARTFAILURES00000LOAD-RUNATTEMPTS53336LOAD-RUNFAILURES00000STARTRELIABILITY 100%100%100%100%100%1Me5DIESELGENERATOR ABCDESTARTATTEMPTS33435/5STARTFAILURES00000LOAD-RUNATTEMPTS33435LOAD-RUNFAILURES00000STARTRELIABILITY 1PP100%100%1PPopo100%~er1995DIESELGENERATOR ABCDESTARTATTEMPTS2666:/.p7STARTFAILURES00000LOAD-RUNATTEMPTS2445LOAD-RUNFAILURES00000STARTRELIABILITY 10010Q%pp100%100%3rdarter199DIESELGENERATOR ABCDESTARTATTEMPTS45533STARTFAILURES00'0LOAD-RUNATTEMPTS34323LOAD-RUNFAILURES00000STARTRELIABILITY 100%100%100%100%100%FileName:96Q3REP.DOC Page9of10'/14/96 ROLLING36MONTHREIIABILITYDATAI4'"uarter1995DIESELGENERATOR ABCDESTARTATTEMPTS976663YSTARTFAILURES00000LOAD-RUN.ATTEMPTS76456LOAD-RUNFAILURES00000STARTRELIABILITY 100%100%100%100%100'l1uarter1996DIESELGENERATOR ABCDESTARTATTEMPTS34258STARTFAILURES00000LOAD-RUNATTEMPTS33246LOAD-RUNFAILURES00000STARTRELIABILITY 100%100%1PP%100%1ppo2nduarter1996DIESELGENERATOR ABCDESTARTATTEMPTS63333/$STARTFAILURES00000LOAD-RUNATTEMPTS63333LOAD-RUNFAILURES00000STARTRELIABILITY 100%100%100%100lo100%3rduarter1996DIESELGENERATOR ABCESTARTATTEMPTS445443.lSTARTFAILURES00000LOAD-RUNATTEMPTS44544LOAD-RUNFAILURES00000STARTRELIABILITY 100%100%100%100%100oloFileName:08Q3REP,DOC Page10af10~O)&c7/14/96 MAINTENANCE RULEREPORTDIESELGENERATOR AVAILABILITY RESULTS4'"QUARTER19g6''"""""'"
"""""""""""DIESEL''':::::;.:I:::.::,';:";;<":""':
":"":::::
';::I'gHOURSIOUT:::
OF...'SERVICE(
0.26Hrs3.99Hrs2208Hrs2208HrsDESPARE3.38Hrs0.90Hrs0.58Hrs2208Hrs2208Hrs2208HrsMAINTENANCE RULEREPORTDIESELGENERATOR RELIABILITY RESULTS4"QUARTER1996"'jgi',~;::,':DIESEL~"'@:",-'"'':::@P':@@START"i~'""-':
<"<."-4N,':,START":
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'"'ka'i'GENERATOR!'Ki 5'i;~'ATTEMPTS'N';!
':iij'-')FAIL~URESI!
~X8;:iAT~TEMPTS4~5 MKFAILURES h:"';-".,"
AD(1)ESPARE)0*00000000(1)On12/10/96, theD/GEwasalignedasasparedieselandwasNOTsubstituted foranydieselwhenthevalidstartfailureoccurred.
SUSQUEHANNA STEAMELECTRICSTATION97Q1MAINTENANCE RULEREPORTDIESELGENERATOR AVAILABILITY RESULTSfor1QUARTER1997'::;:"T$.-';,:::';p'~>Ri+<'.i:;DIESEL":;.+<j'":"'"'"4i'4g 5lHOURS''OUT:.OF'SERVICE%I 5P'(,::5,"~PDIESEL<HOURS!INN!i'i'-""'~
DA11.95Hrs13.20Hrs14.37Hrs0.18Hrs2160Hrs2160Hrs2160Hrs2160HrsESPARE0.00Hrs2160HrsDIESELGENERATOR RELIABILITY RESULTSfor1QUARTER1997zSPARE~9.::~:..:g";;.:.DIESEL';:$
~"-''-'i:
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00000Pk(L'OAD-'.RUN>".;;
0!.'FAIL'ORES 5~:00000  


SUSQUEHANNASTEAMELECTRICSTATION97Q2MAINTENANCERULEREPORTDIESELGENERATORAVAILABILITYRESULTSfor2"'UARTER1997,'r,'-'"".':::-:::.'::.',":.".:.".!::DIESEL'.,',.'::,'$'P'~V,j'":,ae:.":;I.",".:;..::.,':~.:.'::;-:;".::.",:-""'',-'.,ABDESPAREj~s:HOURS,'.OUT':OF,SERVICE'j',:.'4.04Hrs0.88Hrs65.00Hrs8.02Hrs13.91Hrsi('j""'~>>DIESEL':HOURS,'IN,::,,"::,:~p.';,:.5'184Hrs2184Hrs2184Hrs2184Hrs2184HrsWhensubstitutedforD/GA,B,CorDDIESELGENERATORRELIABILITYRESULTSfor2"'UARTER1997;:;~></,,;;:;.4~?;~P-.;:g:'";(Pig;<~'.(>gAL!IP':STA'RABDESPARE)'.+>>>>?(<jgQALID@q$?::p'.i5:;:..'>>',FAIL?URES'5"'.::,'-','i00000i%ATTEMPTS:"~44~,':>>LOAD-.RUN:~j~:-.:@!;.';>>FAIL'URES;';"6'"'00~00 SSESSIGNIFICANTOPERATINGOCCURRENCERErQRTEVENTCLOSUREFORMREPOATNO./-fi(g(PAGE1OFSOORRecordPackagepsaE~OFm>TITLECLOSUREREPORT+KscPIPYTONOF--VENTRAIMI/-CI=LDWIOW,.er-P-~.I'IV>4r(3i"+'4~re(I-Q~4C0P(ZASacr~qp~~<><gs'~~C4'J1,C4~~V~~ErAj~J4D>>4>>C'4VC,4$~~~~~4r~Q~5C4se1o,grr~'855'J'--"b";hun'5~~+nc4>>grcrr@el:essdurngi<<e54grvrricvr.and~CQ3.8,qrCgq1<<5r4~~~AIDCAI:SZeFZUZiTDuringthesurveillanc>>starton6/19/91.'Iaintenancepersonnelverepr'esentmonitorkeyenginefunctionsduringthestart.Aninstalledvisicorderprovidedarocdrecordcfimportantdieselgeneratorparameters.Themonitoringconclusivelyidentifiedchecauseoftheslavstartasafuelcildeliveryproblem.Thisconclusionvasbasedonthefolloving:0Fueloilpressurevasobservedtostaylovforanextendeddurat'onintothestartinsteadofrisingin2to8secondsasisnormal.0TheFuelControlRackremainedfullyopenforthescartduration(normaloperation)0ObservedAirStartSystemoperationvasnormal.0Uislcordertracesshovedallgeneratorparameterstobenormal.'cc'Ig~r444NA4REFERENCEDOCLIMENTATION:1.REPORTINGFORM2.REPORTABILlTYASSESSMENT3.RESOLUTIONFORM'.NPRDSREPORTAGILITYDETERMINATIONtram~:rHScJ~~oQD~D/~QtiEc~WC~ICU~rtIOZOACCEPTANC0PLEAT7~-PiDATESR.COMPLIANCEENG.ORDESIGNEE79'iDATEPORCMEETINGNO.ASST.SUPT.OFPLAr&DATE gsES$tGNIF[CANTOPERATINGOCCURRENCEREPORTREPoRTNO.CONTINUATIONFORM+'7/-/~cATTACHMENTBEINGUSEDFOR:PAGE~OF~CONTINUATIONOFEVENTDESCRIP'"NCONTINUATIONOFIMMEDIATECORRECTIVEACTIONSCONTINUATIONOFASSESSMENTSUMMARYNO-REPORTABLITYDETERMINATIC"'CONTINUATION.OFEVENTCAUSECONTINUATIONOFCORRECTIVEACTIONSCONTINUATIONOFACTIONSTOPREVENTRECURRENCE+oTHERCaBasedoncheirvest'zation,themostprobablecauseofthe'C'DGslavstarthasbeenconcludedtobeexcessiveairctappedinthefuelsupplvheaderexistingpriorcocheinit'alsurvei'ancerunon6/19/91.Thecauseofa're!.t.apnencvi.thinthefuelsupplvheaderisbelievedtobeduetoenin~eccicnpu"p'laving'en;..cdif'ccc'cn'vhichhadbeeninplenencedor.rhe'C'DCnAugust1990.Theflavingventmodificat'onhadbeeninstalledtoaLleviateanin!eccionpumpoverheat'ingprobler.atidleorlovpoverengineoperationbydrainingexcessfuelnilbac'ktothemainfueloilstoragetanks.Thenevflovingventshavebeen:oundineffectiveinvencingairfromthefuelheaderdur'ingscarcup.ThismodificationhadbeeninstalledonEDCs'A'hrough'D'etveenAugustandOctober1990.,ItshouldbenotedthatEDG'E',vhichisaf':thandspa.eEDCacSusquehanna,isofadiffetentdesignandd'dnocrequirethismodificacicn.'~'armeroutsidetemperaturesexperiencedrecentlyhavecadecheproblem-oreevidentasdecreasedfueloilviscosityresultsfasterdraining.thusincreas'ngtherateatvhichairenterschefuelheader.Priortothe'C'G6/19/91slavstart,aconcetnforpotentialvoidingc.''.uelsupplvheaderhado):lvbeensurnisedforthe'D'DC.The'D'DChadexperiencedaslovscarconIarch25,1991duringamaintenancetroubleshootingrun.Althoughtherootcauseofrhe'D'DGslovstartcouldnocbeconclusivelydetermined,onepocencia)contributorvasidentifiedasthemodificationtothefueloilflovingventlines.hsaresult,theflovingvert''nesverete-modifiedtoeliminateapotentialfuelheadervoidingproblem,Similatre-modificationsveredevelopedacthar.tinetabeimplementedasaprecautionarymeasureonthe'h','B'nd'C'DCsduringtheirnextinspectionoucagcs.ThiseventvasdetetninedtobercpottablepcrIOCFR50.73(a)(2)(vii)inthacasingleconditionresultedinaporentialforcvoormorcindependentchannelstobecomeinoperableinasinglesupportsystemdesignedtoshutdovnthereactor~maintainicinasafeshutdovnconditionandmitigatetheconsequencesofanaccident.Namely,airencrapmencinthefuelsupplyheadersofcheEDCs,identifiedasthcmosr.ptobcblecauseofrhc6/19/91'C'DCslovstartandcausedbyamodificationperformedon'A'hrough'D'DGsin1990,couldpotentiallyresultinstarttinesexceedingthoserequiredvhenthcenginesarestartedonceper31daysinaccordanceviththeTechnicalSpecifications.)~\}I'}Ir~}:Il.BOORRcordPackagePAGOFJ~O)}I4~I}iwMA04Mzi)o.se.z.Osage!c)))
SUSQUEHANNA STEAMELECTRICSTATION97Q2MAINTENANCE RULEREPORTDIESELGENERATOR AVAILABILITY RESULTSfor2"'UARTER 1997,'r,'-'"".':::-:::.'::.',":.".:.".!::DIESEL'.,',.'::,'$'P'~V, j'":,ae:.":;
osESSIGNIFICANTOPERATINGOCCURRENCEREPORT-CONTINUATIONFORMREPORTNO./-Pl-~c.PA(it,~wc/RCHMENTBEINGUSEDFOR:CONTINUATIONOFEVENTDESCRIPTIONCONTINUATIONOFIMMEDIATECORRECTIVEACTIONSCONTINUATIONOFEVENTCAUSECONTINUATIONOFCORRECTIVEACTIONSCONTINUATIONOFASSESSMENTSUMMARYNOREPORTABLITYDETERMINATIONCONTINUATIONOFACTIONSTOPREVENTRECURRENCEOTHER'EKC4i'M)CORRECTIVEACTION'SInspectionsimmediatelyafterthefailureverifiednofuelpiping1caksthatcouldhaveleadcotheslowscarc.AmanualFuelOilBoosterPumpstartvasinitiatedcodetermineifapumporpressureregulatorvalveproblemvasevident.Fuelpressurerisevasnormalandvithin2seconds,demonstratingproperoperationofcheBoosterPumpandacompletely"solid"(noairvoiding)fuelsupplyheader.FuelControlrackoperationvasobservedtobenormal.Atroubleshootingscarcwasperfor=edandthe'C'DCstarttimevas7.7seconds.TheBoosterPumpvasobsezvedcoscartimmediatelyandstopafevsecondslacerpericsdesign.Fuelpressurevasobservedtorisetoracedpressurevichin3seconds.~~Themonthlysurveillancecescvasrepeaced.Starttimevas7.6seconds.Properfuelsystemoperationvasagainobserved.The'C'DCvasstartedfromambientconditionsat0535hourson6/20/91.Thepurposeofthisrestartvastoverifythatnoocherfailuremechanismvasbeingaaskedbytherelativelyshortshutdovntimesbecveenthepreviousstarts.Follovingthesuccessfulstart,the'C'DCvasdeclazedOPERABLE.The'EDG~astestedon"eevery7daysinaccordancewithTechSpeczquirenents.Additionally,starttestswereimmediatelyperformedonthe'A'nd'B'DGs.Asaprudentmeasure.EDGs'A'nd'B'erestartedonceeveryl5daysuntiltheflowingventre-mod'icationwascompletedonthex.Theflovingventre-modificationwascompletedonal)EDGeby'7/27/91.Resultsto-datehaveshownimprovementsinEDGstarttimes.ThisSOORisrecommendedforclosure.&8'P~Pi-coraW-WSOORRecordPackagePP,GOOF~
I.",".:;..::.,':~.:.'::;-:;".::.",:-""'',-'.,
SSESSIGNIFICANTOPERATINGOCCURRENCEREPORTEVENTREPORTINGFORMREPORTNO,1"91"156PAGE1.OF2INITIATORSTADATEWORKGROUP8ARRYWPALMER06/19/91UNITSYSTEMNO.024BLDG.LOCATIONEVENTDATEAEANDTIME4467706/19/91145RXPOWER/CONDITIONU11001u21001PRIORITYIEVENTDESCRIPTIONIINITIALINVESTIGATIONThe'C'ieselgeneratorwasdeclaredinoperablewhenitfailedtostartwithin10secondsduringperformanceoftheDieselGeneratorMonthlygQ.VOperabilityTest.WhileperformingtheDieselGeneratorMonthlyOperabilityTest,SO"024-001,"'he'C'ieselgeneratorfailed.tostartwithintheTequired10seconds.Thestarttimestoreachratedfrequency,speed,andvoltagewere28,24,20.1secondsrespectively.The'C'ieselgeneratorwasdeclaredinoperableandLCO3,8.1.1wasentered.ElectricalMaintenancewasnotifiedtoinvestigate.SOQi~Pp~~--,t.-.FAG~L,"-:~~L:II'I'4~>I,~L~~IIMMEDIATECORRECTIVEACTIONSInitiatedinvestigation.EnteredLCO.nI~4'tj't(Lt,StItlICONSEQUENCESOFTHEEVENTHOAGYERSECONSEQUENCESAEACTOR5IIUTOOYYHREGUCKQPLANtCAPACITYIHCREASKQOUTAQETIMEKOUtPLIEHTQAUAQKQfHQIHEfREOSAPEGVAAOFEATUREACTUATION+TECHSPECACTIONSTATELIKNTENTERKOtECHSPECYOLAT:OHI'EASQHHELINJURKOORCOHTAUIHATKOOTIIEAFVENTIDENTIFIEDBY~OPERATIONSPERSOttHfLIACPERSONNELUAYHTKNAHCfPERSONNELTECHNICALSTAPPPEASOHHELHEALTHPtIYSC$PEASONNELSECURITYPERSQHHKLO'THEA.i)'!~IIEVENTDETECTEDBYCONTROLROQttALAAII5+ittt~TURHQYERROUTINERQUHQ5VERtttCATIQHOPTASROOSEAYATIQNOPCONSKOUENCE5LOCALALARU~SUAVEILLAHCEtf$ttHGQQCUUfHTATIQHR'EVIEWCHAetCKOSSKAYATIQtt'TIIEREVENTISQAREPEATOCCURRENCETHEOIILYKNOWNOCCURRENCESnelPJltQAPASTOCCVRRENCERUTIIQTTHESAMEth4VA~OAttt5~~PPIH~~tt.sAt))THfeOLimbus~+':b SOQR:",:.-.,r,-w:-...I,~~PA8~0;=~@'COHSEQJE4=.SASSESS~~Therewerenoadversesafetyconsequencesasaresultofthisevent,oiiourdieselgeneratorswereavailableatallticresmeetingtheminimumstationbackupemergencypowersupplydesignbasisrequirement.The"C"Diese'eneratordidstarandwouldhavebeenavailableasapcMrsupplyifaneventhadoccurred.Oncethedieselwasstartedairwaspurgedfrcmtheuelsystem.Subsecuents~swiJoin-periodofapproximatelytwoweekswouldbeectedtobelessthantherequiiedtensecondstarttimebasedoninvestigationso=theproblem.mQ~.+~KMI~)~COPJKCTi~&ACTiGNSCorrectiveactionistoinstalliXP91-9013C,FuelOilSystemVentLineModification.Un"'lt"..enadificationcanbeinstalledthe"C"DieselGeneratorshallbestartedeverysevendays.Thereducedperiodbetweenstartswillmaintainthefuelupplyheaderpurgedofair.Similarly,DCP91-9013AandBshallbeinstalledondiese).s"A"and"B"topreventasimilaroccurrence.AlthoughaslowstarthasnotocvuraRoneither'fthesedieselstheyshallbestartedatanincreasedfrequencyofevery15daysasaprecautionuntilthemxlificationcanbeinstalled.TheuelOilSystemVentLineMcdificationwasccrrpletedonDieselGenerator"D"on5/25/91.AC1'ZONS'IOPR~~ZRECURRENC"Thereareno5Heractionstopreventrecun~ce.PASTSOLARSOORs1-91-068Insorcomprotrisatn~~hit-Mpyenosafet)cop'cocy~~sod't'lof>ty~c~:.sultofthj.sstohec.ox~n..+1~fotMoor.reindepondent-'.-~ye.ableinasinglesuppord'f:.~nd/~"coactor.maintainitin~safesdidexist.~itjr:atetheconsequencesofanaccioen.fun)cu'QplvheadersofEDGsstarttimesyhaver.ph~c;eroquirefulbvTechSpnsuchthis~ven".ctprtin+nemergencyrjtuatinn.nst,notedtnwhoCo~miss)qnver10'CFP50.73(a)<2}(viIk LICENSEEEVEN~REPORTHLER)TEXTCONTINUATlONSSTI4ATSOSVIIOSHASHAle@)HSAIVsv~i~IHiOII4ATIOHCOLLSCfIONIICOVSST'l00HAS.iOHWAAOCO44SHTSIISOAIIOIHOSVAOlH~STI4ATlTO1HIASCOAOSAHO1ltOIITS4AHAOSHSHTSIIAHCIIIi010IVSHVCLSAII+lOVLATOIIYCO44ISSIOH,~,ASHIHOTOH.OCTOSSS.AHOTO'IHl>AAtIIWOIIlIISOVCTIOHAHOJSCTISIS00IOAI.OfAICSOA4AHAOIUIHTAHOSVOOST,WASIIIHOTOH.OC10$01,~A,ITYH~IIIOOCIIlTHV40lATSIvfAALSIIHV40SAIll~IOVIHIIAL4A+IVHHIh4~AOI<SI1SosuehannaSteamE'.ectricStdt>onflyIIf~~~~~ecWewWHIfCAme~SfIITIo5ooo3S7910070006QF0cADDITIONALINFOR.'fATIONThisLicenseeEventReportalsofulillstherequirementforissuanceofaSpecialReportperTechnicalSpeciixcation4.8.1.1.4forallEDGfailures,validornon-valid.FailedComponentIdentification:NoneidentifiedPreviousSimilarEvents:LER90-015-00reportedaslovstartontheA'DG7/26/90.Thlfcauseoftheslowstartvasasheared1"reducerontheairstartheaderpiping.PLAS-455{SpecialReport)describedaslowstartonthe'D'DGon10/30/90.Nopositiverootcausewasdetermined.PLAS-428{SpecialReport)describedaslovstartonthe'E'DGon5/15/90.ThisslovstartvasattributedtoairinfiltrationintothefueloilpipingasaresultofaFuelOilBoosterpumpsuctionflangeleak-.
ABDESPAREj~s:HOURS,'.OUT':OF,SERVICE'j',:.'4.04 Hrs0.88Hrs65.00Hrs8.02Hrs13.91Hrsi('j""'~>>DIESEL':HOURS,
5, April24,1991cc:H.G.StanleyT.C.DalpinzE.<".Figard0'.Kuczynsk!S.B.Kuhn8~R.)IeidnrnO'0"'cII..I.I'nImcrSIISc)',E)IAY4ASTF.,":EI.FCTRICSTATIONDIESEI.GENERATORA-FAILl'REDURINGSF.-""'-107APRIL-"",1991I'.IS-3729>>FII.F.R48-6SF'07,'18~InthDieselGeneratnrAandC(orE>AutoStartnndESSBusesnnd.'.0Fncrgi;atinnnnLnssnfOffsirePnwcrwithaI.OCA-PlantShutdown",pcrfnrmstestingtnfulfillsevcrn1TechnicalSpccificntinnsurveillancerenu!renents.DuringtheperformancenfSE-224-107onApril22,1991.Diesr1Gencrntnr's"A"and"C"veregivennstartsignalviatheSEorocedure.The"A"D!rsrIfniIcc!tcnch'.everatedspeed.Asnresult,rntec!vcItngenndfrccucnrvvc!rnlsnnntachievedandtheDieseldidnnrenrrgi.".rthecmergcnc",bus.Subsequently.theenginevnsmanuallytrippec!.IInsednntheprnpcrilluminntinr.cftestlightsandthenrnn'e.startofthe"C"Diesel,vebelievethatthefailureofthe"A"Dieseltnprnperlystartisassociatedwithaproblemwiththe"A"DieselandnctwiththcESP.logic..Iaintenanceiscontinuingitstroubleshootinp,,investign'tion-w5:th-the"A"Dieseltobetterdeterminecause.Intheinterim-the.followingissuesr.ustbeaddressed:(I'ISubstitutiono.the"E"Dieselforthe"A"Diese...<<asednntheisfn....atinnveLave."ebelievethefailurenithe"A"Dieselisassnciatedwiththeengineitself.Therefor.noadditionalsurveillancetesting,aboveandbeyondwhatisnormallydnnefnrsubst'tuticn.is,required.',":I'.I.~tu<<.lSE-22>>-107.Duetctheproblemwiththe"A"Dieselthetestcouldnetbecompleted.Althoughpnrtionsnfthetestweresuccessfullycnrpleted.itisourintenttoreperfnrmthesurveillance,initsentirety,vhrnthc"A"Dirse1isreturnedtnservice.IIC  
'IN,::,,"::,:~p.';,:.5'184 Hrs2184Hrs2184Hrs2184Hrs2184HrsWhensubstituted forD/GA,B,CorDDIESELGENERATOR RELIABILITY RESULTSfor2"'UARTER 1997;:;~></,,;;:;.4~?;~
~-pr<<)('l10<rabf1ftvtncrfn.n(the"A"1)f<snlA'4lease<l.ooth<in(nrmation<:chaveMch''ethef'ail>>reo5thc"A"Dieselassn<'fated<:Ithth<rnpfn<frsr1fa>><lnotth<FSFIo<;fc.Rctcsrfnr,(orop<rahI11tvsh<in,dbc<'F.A)<iAO<,rr,<st<nninc<r<rrvr>>rvstartI<iyI(So-0"l<-001.('I~f<srIeeneratnrvalid/nonvalidfailure.AIIfn<lication.ndatristhatthe"A"Dfcs<'1rcccive<lavalidemergcncvstartsirnal.Therefore,itsEailur~'oadecuatclvstartandachieveratedc<.rditions~fthfn10secondssl;:idbeconsidcre<!avalidfailure."i')T..a'.,'Irrk'lant'nefneerfnc.Supcrvfs<rjl,F.Rorh<'enfnrCo<<<plianccFncfnccr
P-.;:g:'";(Pig;<~'.
~~~PennsylvaniaPowerLLightCompanyTwoNorthNinthStreet~Allentown,PA18101~215I7705151Junelh,(990bcc:H.W.Keiser.TW-16A.M.MaleA6-2F.G.ButlerA6-2I'Cc.A6>>1J.R.MiltenbergerA6-1Z.'N.'Z~yA2-4Nr.T.T.Hartinm~~,H.D.WcxxhshickSpu..Off1.ce-b.xwiRegionalAdministrator,RegionIM.T,~nSusq.'I'rainingCenU.S.NuclearRegulatoryCcnmissionR.J.PregoSB-2475AllendaleRoadSRC(Attn:W.R.Licht)A6-1KingofPrussia,Pa.19406M.M.GoldenSSEST.J.NorkSSESW.G.HafnerSB-1iGHCSecretarySSES'OCFileSSES'.Dyckrttan-AlleghenyElectricC~ratiP.O.sax1266SURXJEtVBNASTEAMEZZCZRICSTATI(NHarrisburg,PA17108-1266SPECIALREFORI''E'IESELFAILURE'IoJ,D,DeckerGeneralACHIEvE60HZFREQUENCYWITHIN10SErXNDS5HighlandPlace~-r28FILER41-2ehern,PA18017INPO~rdsCent'er-Suite15001100Circle75Pkwy.DocketNo.50-387AtlantaGA,30339LicenseLLo.NPF-14FearicanNuclearInsurers-TheExchangeSuite270Fazrt~pxnAve.Fartttington,CT06(I32
(>gAL!IP':STA'RABDESPARE)'.+>>>>?(<jgQALID@q$?::p'.i5:;:..'>>',FAIL?URES'5"'.::,'-','i 00000i%ATTEMPTS:"~44
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00~00 SSESSIGNIFICANT OPERATINGOCCURRENCE RErQRTEVENTCLOSUREFORMREPOATNO./-fi(g(PAGE 1OFSOORRecordPackagepsaE~OFm>
TITLECLOSUREREPORT+KscPIPYTONOF--VENTRAIMI/-CI=LDWIOW,.er-P-~.I'IV>4r(3i"+'4~re(I-Q~4C0P(ZASacr~qp~~<><gs'~~C4'J1,C4~~V~~ErAj~J4D>>4>>C'4VC,4$~~~~~4r~Q~5C4se1o,grr~'855'J'--"b";hun'5~~+nc4>>grcr r@el:essdurngi<<e54grvrr icvr.and~CQ3.8,qrCgq1<<5r4~~~AIDCAI:SZeFZUZiTDuringthesurveillanc>>
starton6/19/91.'Iaintenance personnel verepr'esentmonitorkeyenginefunctions duringthestart.Aninstalled visicorder providedarocdrecordcfimportant dieselgenerator parameters.
Themonitoring conclusively identified checauseoftheslavstartasafuelcildeliveryproblem.Thisconclusion vasbasedonthefolloving:
0Fueloilpressurevasobservedtostaylovforanextendeddurat'onintothestartinsteadofrisingin2to8secondsasisnormal.0TheFuelControlRackremainedfullyopenforthescartduration(normaloperation) 0ObservedAirStartSystemoperation vasnormal.0Uislcorder tracesshovedallgenerator parameters tobenormal.'cc'Ig~r444NA4REFERENCE DOCLIMENTATION:
1.REPORTING FORM2.REPORTABILlTY ASSESSMENT 3.RESOLUTION FORM'.NPRDSREPORTAGILITY DETERMINATION tram~:rHScJ~~oQD~D/~QtiEc~WC~ICU~rtIOZOACCEPTANC0PLEAT7~-PiDATESR.COMPLIANCE ENG.ORDESIGNEE79'iDATEPORCMEETINGNO.ASST.SUPT.OFPLAr&DATE gsES$tGNIF[CANT OPERATING OCCURRENCE REPORTREPoRTNO.CONTINUATION FORM+'7/-/~cATTACHMENT BEINGUSEDFOR:PAGE~OF~CONTINUATION OFEVENTDESCRIP'"NCONTINUATION OFIMMEDIATE CORRECTIVE ACTIONSCONTINUATION OFASSESSMENT SUMMARYNO-REPORTABLITY DETERMINATIC"'
CONTINUATION.
OFEVENTCAUSECONTINUATION OFCORRECTIVE ACTIONSCONTINUATION OFACTIONSTOPREVENTRECURRENCE
+oTHERCaBasedoncheirvest'zation, themostprobablecauseofthe'C'DGslavstarthasbeenconcluded tobeexcessive airctappedinthefuelsupplvheaderexistingpriorcocheinit'alsurvei'ance runon6/19/91.Thecauseofa're!.t.apnenc vi.thinthefuelsupplvheaderisbelievedtobeduetoenin~eccicn pu"p'laving'en;..cdif'ccc'cn'vhich hadbeeninplenenced or.rhe'C'DCnAugust1990.Theflavingventmodificat'on hadbeeninstalled toaLleviate anin!eccionpumpoverheat'ing probler.atidleorlovpoverengineoperation bydrainingexcessfuelnilbac'ktothemainfueloilstoragetanks.Thenevflovingventshavebeen:ound ineffective invencingairfromthefuelheaderdur'ingscarcup.Thismodification hadbeeninstalled onEDCs'A'hrough
'D'etveen AugustandOctober1990.,ItshouldbenotedthatEDG'E',vhichisaf':thandspa.eEDCacSusquehanna, isofadiffetent designandd'dnocrequirethismodificacicn.'~'armeroutsidetemperatures experienced recentlyhavecadecheproblem-oreevidentasdecreased fueloilviscosity resultsfasterdraining.
thusincreas'ng therateatvhichairenterschefuelheader.Priortothe'C'G6/19/91slavstart,aconcetnforpotential voidingc.''.uelsupplvheaderhado):lvbeensurnisedforthe'D'DC.The'D'DChadexperienced aslovscarconIarch25,1991duringamaintenance troubleshooting run.Althoughtherootcauseofrhe'D'DGslovstartcouldnocbeconclusively determined, onepocencia) contributor vasidentified asthemodification tothefueloilflovingventlines.hsaresult,theflovingvert''nesverete-modified toeliminate apotential fuelheadervoidingproblem,Similatre-modifications veredeveloped acthar.tinetabeimplemented asaprecautionary measureonthe'h','B'nd'C'DCsduringtheirnextinspection oucagcs.Thiseventvasdetetnined tobercpottablepcrIOCFR50.73(a)
(2)(vii)inthacasinglecondition resultedinaporential forcvoormorcindependent channelstobecomeinoperable inasinglesupportsystemdesignedtoshutdovnthereactor~maintainicinasafeshutdovncondition andmitigatetheconsequences ofanaccident.
Namely,airencrapmenc inthefuelsupplyheadersofcheEDCs,identified asthcmosr.ptobcblecauseofrhc6/19/91'C'DCslovstartandcausedbyamodification performed on'A'hrough
'D'DGsin1990,couldpotentially resultinstarttinesexceeding thoserequiredvhenthcenginesarestartedonceper31daysinaccordance viththeTechnical Specifications.
)~\}I'}Ir~}:Il.BOORRcordPackagePAGOFJ~O)}I4~I}iwMA04Mzi)o.
se.z.Osage!c)))
osESSIGNIFICANT OPERATING OCCURRENCE REPORT-CONTINUATION FORMREPORTNO./-Pl-~c.PA(it,~wc/RCHMENTBEINGUSEDFOR:CONTINUATION OFEVENTDESCRIPTION CONTINUATION OFIMMEDIATE CORRECTIVE ACTIONSCONTINUATION OFEVENTCAUSECONTINUATION OFCORRECTIVE ACTIONSCONTINUATION OFASSESSMENT SUMMARYNOREPORTABLITYDETERMINATION CONTINUATION OFACTIONSTOPREVENTRECURRENCE OTHER'EKC4i'M)CORRECTIVE ACTION'SInspections immediately afterthefailureverifiednofuelpiping1caksthatcouldhaveleadcotheslowscarc.AmanualFuelOilBoosterPumpstartvasinitiated codetermine ifapumporpressureregulator valveproblemvasevident.Fuelpressurerisevasnormalandvithin2seconds,demonstrating properoperation ofcheBoosterPumpandacompletely "solid"(noairvoiding)fuelsupplyheader.FuelControlrackoperation vasobservedtobenormal.Atroubleshooting scarcwasperfor=edandthe'C'DCstarttimevas7.7seconds.TheBoosterPumpvasobsezvedcoscartimmediately andstopafevsecondslacerpericsdesign.Fuelpressurevasobservedtorisetoracedpressurevichin3seconds.~~Themonthlysurveillance cescvasrepeaced.
Starttimevas7.6seconds.Properfuelsystemoperation vasagainobserved.
The'C'DCvasstartedfromambientconditions at0535hourson6/20/91.Thepurposeofthisrestartvastoverifythatnoocherfailuremechanism vasbeingaaskedbytherelatively shortshutdovntimesbecveenthepreviousstarts.Folloving thesuccessful start,the'C'DCvasdeclazedOPERABLE.
The'EDG~astestedon"eevery7daysinaccordance withTechSpeczquirenents.
Additionally, starttestswereimmediately performed onthe'A'nd'B'DGs.Asaprudentmeasure.EDGs'A'nd'B'erestartedonceeveryl5daysuntiltheflowingventre-mod'icationwascompleted onthex.Theflovingventre-modification wascompleted onal)EDGeby'7/27/91.
Resultsto-datehaveshownimprovements inEDGstarttimes.ThisSOORisrecommended forclosure.&8'P~Pi-coraW-WSOORRecordPackagePP,GOOF~
SSESSIGNIFICANT OPERATING OCCURRENCE REPORTEVENTREPORTING FORMREPORTNO,1"91"156PAGE1.OF2INITIATOR STADATEWORKGROUP8ARRYWPALMER06/19/91UNITSYSTEMNO.024BLDG.LOCATIONEVENTDATEAEANDTIME4467706/19/91145RXPOWER/CONDITION U11001u21001PRIORITYIEVENTDESCRIPTION IINITIALINVESTIGATION The'C'ieselgenerator wasdeclaredinoperable whenitfailedtostartwithin10secondsduringperformanceoftheDieselGenerator MonthlygQ.VOperability Test.Whileperforming theDieselGenerator MonthlyOperability Test,SO"024-001,"'he
'C'ieselgenerator failed.tostartwithintheTequired10seconds.Thestarttimestoreachratedfrequency, speed,andvoltagewere28,24,20.1secondsrespectively.
The'C'ieselgenerator wasdeclaredinoperableandLCO3,8.1.1wasentered.Electrical Maintenance wasnotifiedtoinvestigate.
SOQi~Pp~~--,t.-.FAG~L,"-:~~L:II'I'4~>I,~L~~IIMMEDIATE CORRECTIVE ACTIONSInitiated investigation.
EnteredLCO.nI~4'tj't(Lt,StItlICONSEQUENCES OFTHEEVENTHOAGYERSECONSEQUENCES AEACTOR5IIUTOOYYH REGUCKQPLANtCAPACITYIHCREASKQ OUTAQETIMEKOUtPLIEHT QAUAQKQfHQIHEfREOSAPEGVAAO FEATUREACTUATION
+TECHSPECACTIONSTATELIKNT ENTERKOtECHSPECYOLAT:OHI'EASQHHEL INJURKOORCOHTAUIHATKO OTIIEAFVENTIDENTIFIED BY~OPERATIONS PERSOttHf LIACPERSONNEL UAYHTKNAHCf PERSONNEL TECHNICAL STAPPPEASOHHEL HEALTHPtIYSC$PEASONNEL SECURITYPERSQHHKL O'THEA.i)'!~IIEVENTDETECTEDBYCONTROLROQttALAAII5+ittt~TURHQYERROUTINERQUHQ5VERtttCATIQH OPTASROOSEAYATIQN OPCONSKOUENCE5LOCALALARU~SUAVEILLAHCEtf$ttHGQQCUUfHTATIQHR'EVIEWCHAetCKOSSKAYATIQtt
'TIIEREVENTISQAREPEATOCCURRENCE THEOIILYKNOWNOCCURRENCE SnelPJltQAPASTOCCVRRENCE RUTIIQTTHESAMEth4VA~OAttt5~~PPIH~~tt.sAt))THfeOLimbus~+':b SOQR:",:.-.,r,-w:-...I,~~
PA8~0;=~@'COHSEQJE4=.S ASSESS~~Therewerenoadversesafetyconsequences asaresultofthisevent,oiiourdieselgenerators wereavailable atallticresmeetingtheminimumstationbackupemergency powersupplydesignbasisrequirement.
The"C"Diese'enerator didstarandwouldhavebeenavailable asapcMrsupplyifaneventhadoccurred.
Oncethedieselwasstartedairwaspurgedfrcmtheuelsystem.Subsecuent s~swiJoin-periodofapproximately twoweekswouldbeectedtobelessthantherequiiedtensecondstarttimebasedoninvestigations o=theproblem.mQ~.+~KMI~)~COPJKCTi~&
ACTiGNSCorrective actionistoinstalliXP91-9013C,FuelOilSystemVentLineModification.
Un"'lt"..enadification canbeinstalled the"C"DieselGenerator shallbestartedeverysevendays.Thereducedperiodbetweenstartswillmaintainthefuelupplyheaderpurgedofair.Similarly, DCP91-9013AandBshallbeinstalled ondiese).s"A"and"B"topreventasimilaroccurrence.
AlthoughaslowstarthasnotocvuraRoneither'fthesedieselstheyshallbestartedatanincreased frequency ofevery15daysasaprecaution untilthemxlification canbeinstalled.
TheuelOilSystemVentLineMcdification wasccrrpleted onDieselGenerator "D"on5/25/91.AC1'ZONS'IOPR~~ZRECURRENC" Thereareno5Heractionstopreventrecun~ce.
PASTSOLARSOORs1-91-068Insorcomprotri satn~~hit-Mpyenosafet
)cop'cocy
~~sod't'lof>ty~c~:.sultofthj.sstohec.ox~n..+1~fotMoor.reindepondent
-'.-~ye.ableinasinglesuppord'f:.~nd/~"coactor.maintainitin~safesdidexist.~itjr:ate theconsequences ofanaccioen.fun)cu'QplvheadersofEDGsstarttimesyhaver.ph~c;eroquirefulbvTechSpnsuchthis~ven".ctprtin+nemergency rjtuatinn.
nst,notedtnwhoCo~miss)qn ver10'CFP50.7 3(a)<2}(viIk LICENSEEEVEN~REPORTHLER)TEXTCONTINUATlON SSTI4ATSO SVIIOSHASHAle@)HSAIVsv~i~IHiOII4ATIOH COLLSCfIONIICOVSST'l00HAS.iOHWAAOCO44SHTSIISOAIIOIHO SVAOlH~STI4ATlTO1HIASCOAOSAHO1ltOIITS4AHAOSHSHT SIIAHCIIIi010IVSHVCLSAII+lOVLATOIIY CO44ISSIOH,
~,ASHIHOTOH.
OCTOSSS.AHOTO'IHl>AAtIIWOIIl IISOVCTIOH AHOJSCTISIS00IOAI.
OfAICSOA4AHAOIUIHT AHOSVOOST,WASIIIHOTOH.OC 10$01,~A,ITYH~IIIOOCIIlTHV40lATSIvfAALSIIHV40SAIll~IOVIHIIAL 4A+IVHHIh4~AOI<SI1SosuehannaSteamE'.ectricStdt>onflyIIf~~~~~ecWewWHIfCAme~SfIITIo5ooo3S7910070006QF0cADDITIONAL INFOR.'fATION ThisLicenseeEventReportalsofulillstherequirement forissuanceofaSpecialReportperTechnical Speciixcation 4.8.1.1.4 forallEDGfailures, validornon-valid.
FailedComponent Identification:
Noneidentified PreviousSimilarEvents:LER90-015-00 reportedaslovstartontheA'DG7/26/90.Thlfcauseoftheslowstartvasasheared1"reducerontheairstartheaderpiping.PLAS-455{SpecialReport)described aslowstartonthe'D'DGon10/30/90.
Nopositiverootcausewasdetermined.
PLAS-428{SpecialReport)described aslovstartonthe'E'DGon5/15/90.Thisslovstartvasattributed toairinfiltration intothefueloilpipingasaresultofaFuelOilBoosterpumpsuctionflangeleak-.
5, April24,1991cc:H.G.StanleyT.C.DalpinzE.<".Figard0'.Kuczynsk!
S.B.Kuhn8~R.)IeidnrnO'0"'cII..I.I'nImcrSIISc)',E)IAY4A STF.,":EI.FCTRICSTATIONDIESEI.GENERATOR A-FAILl'REDURINGSF.-""'-107 APRIL-"",1991I'.IS-3729>>FII.F.R48-6SF'07,'18~InthDieselGeneratnr AandC(orE>AutoStartnndESSBusesnnd.'.0Fncrgi;atinnnnLnssnfOffsirePnwcrwithaI.OCA-Plant Shutdown",
pcrfnrmstestingtnfulfillsevcrn1Technical Spccificntinn surveillance renu!renents.
Duringtheperformance nfSE-224-107 onApril22,1991.Diesr1Gencrntnr's "A"and"C"veregivennstartsignalviatheSEorocedure.
The"A"D!rsrIfniIcc!tcnch'.everatedspeed.Asnresult,rntec!vcItngenndfrccucnrv vc!rnlsnnntachievedandtheDieseldidnnrenrrgi.".r thecmergcnc",
bus.Subsequently.
theenginevnsmanuallytrippec!.
IInsednntheprnpcrilluminntinr.
cftestlightsandthenrnn'e.startofthe"C"Diesel,vebelievethatthefailureofthe"A"Dieseltnprnperlystartisassociated withaproblemwiththe"A"DieselandnctwiththcESP.logic..Iaintenance iscontinuing itstroubleshootinp,,investign'tion-w5:th-the"A"Dieseltobetterdetermine cause.Intheinterim-the.following issuesr.ustbeaddressed:
(I'ISubstitution o.the"E"Dieselforthe"A"Diese...<<asednntheisfn....atinn veLave."ebelievethefailurenithe"A"Dieselisassnciated withtheengineitself.Therefor.noadditional surveillance testing,aboveandbeyondwhatisnormallydnnefnrsubst'tuticn.
is,required.
',":I'.I.~tu<<.l SE-22>>-107.
Duetctheproblemwiththe"A"Dieselthetestcouldnetbecompleted.
Althoughpnrtionsnfthetestweresuccessfully cnrpleted.
itisourintenttoreperfnrm thesurveillance, initsentirety, vhrnthc"A"Dirse1isreturnedtnservice.IIC  
~-pr<<)('l10<rabf1ftvtncrfn.n(the"A"1)f<snlA'4lease<l.ooth<in(nrmation<:chaveMch''ethef'ail>>reo5thc"A"Dieselassn<'fated
<:Ithth<rnpfn<frsr1fa>><lnotth<FSFIo<;fc.Rctcsrfnr,(orop<rahI11tvsh<in,dbc<'F.A)<iAO<,rr,<st<nninc<r<rrvr>>rv startI<iyI(So-0"l<-001.
('I~f<srIeeneratnr valid/nonval idfailure.AIIfn<lication.ndatristhatthe"A"Dfcs<'1rcccive<l avalidemergcncv startsirnal.Therefore, itsEailur~'o adecuatclv startandachieveratedc<.rditions
~fthfn10secondssl;:idbeconsidcre<!
avalidfailure."i')T..a'.,'Ir rk'lant'nefneerfnc
.Supcrvfs<
rjl,F.Rorh<'enfnrCo<<<pliancc Fncfnccr
~~~Pennsylvania PowerLLightCompanyTwoNorthNinthStreet~Allentown, PA18101~215I7705151Junelh,(990bcc:H.W.Keiser.TW-16A.M.MaleA6-2F.G.ButlerA6-2I'Cc.A6>>1J.R.Miltenberger A6-1Z.'N.'Z~yA2-4Nr.T.T.Hartinm~~,H.D.Wcxxhshick Spu..Off1.ce-b.xwi RegionalAdministrator, RegionIM.T,~nSusq.'I'raining CenU.S.NuclearRegulatory Ccnmission R.J.PregoSB-2475Allendale RoadSRC(Attn:
W.R.Licht)A6-1KingofPrussia,Pa.19406M.M.GoldenSSEST.J.NorkSSESW.G.HafnerSB-1iGHCSecretary SSES'OCFileSSES'.Dyckrttan
-Allegheny ElectricC~ratiP.O.sax1266SURXJEtVBNA STEAMEZZCZRICSTATI(NHarrisburg, PA17108-1266 SPECIALREFORI''E'IESELFAILURE'IoJ,D,DeckerGeneralACHIEvE60HZFREQUENCY WITHIN10SErXNDS5HighlandPlace~-r28FILER41-2ehern,PA18017INPO~rdsCent'er-Suite15001100Circle75Pkwy.DocketNo.50-387AtlantaGA,30339LicenseLLo.NPF-14FearicanNuclearInsurers-TheExchangeSuite270Fazrt~pxn Ave.Fartttington, CT06(I32


==DearMr.MartinAttn:==
==DearMr.MartinAttn:==
LibrarianAilDieselGeneratorfailures,validorinvalid,aretobereporttxtasrequiredbyRegulatoryGuide1.108,SectionC.3.bandTechnicalSpecificaticn4.8.1.1.4.OnNay15,1990at,2125hoursthe'E'ieselGyrator(D/G)wasstart~Ainaccorda~withsurveillancetestSO-024W01followingitssubstitutionforthe'O'/Gc&cmbeingrenaved~serviceformaintenance.D/G'E'sasparefithD/Gwhichcanbesubstit~foranyofthefour(A,B,CorD)D/G'satSusquehanna.The'E'/Gfailedtoachievegenerator.frc~mcy~f60(+3.0,-3,0)Hzwithin10seccax1sasxmp~BbyTechnicalSpecificationSurveillanceRequirazant4.8.1.1.2.a.The.'E'/Gwasshutdown.Limiting'.".yditicaforOperation(M3)3.8.1.1wasentered.'Ihe'D'/Gwassubstitutedbackinforthe'E'/G.Thus,fourseparate,independentD/G'swereagainOPERABLEasrequiredbytheTechnicalSpecificationsandIlD3.8.1.1wascleared.Thswasthesecondobservedabnormalstartofthe'E'/Ginalittlemarethanaonenenthperiod.OnApril10,1990thecbservedgeneratorfrequencydidnotmeetitsrequiredvaluewithin10secondsduringastartattarpt.'IbisstartatemptwasclassifiedasancnmalidtestbyOperaticassinceithadfollowedrtaintenanceactivitieswh'chhadbeewperfoxmedonthe'E'/G.
Librarian AilDieselGenerator
Follcwingthe4-10-90sluggishstartthe'E'/Gfrequencymetercircuitwasenrrnined,alongwiththegovernorfuelrack,airstart,speedsensingandotherccmponentsandnoabnormalitieswerefound.priortothestart,theairsupplytothestartingheaderhadbeenconf~t'oberxrrmalatgreaterthanorequalto240psig.AsecondstartattempthadbeensuccessfulwiththeD/Gattainingitsrequiredparrrmeterswithinthe10secondtimelimit.Thespecificcause'fthe4-10-90slowstartcouldnotbedeterrrunedatthattime,however,theinvestigationdidnotidentifyanyreasonfortheslowstarttobeclassifiedasavalidtestorfailure.Asubsequentstartatterrrpton4-12-90at1331hourswasalsosuccessfulwiththe0/Gattainingallrequiredparameterswithinthe10secondtinelimit.Followingthe5-15-90slowstart,asecondstartattemptwasmadewiththe0/Gnrccessfullyattainingitsrequiredparameterswithinthe10secondtirelimit.Aninvestigationwasthenconductedandseveralaircontmlpressurerrgulatororshuttlevalvesweredisassembled,inspectedandtestedalongwithstartingrelaylogiccircuitry.Noabnormalitieswerefound.Finally,thefueloilsystempipirrgwasinspectedandaloosesuctionflangeontheDCFuelOilBoosterPumpwasfoundtobeleaki;rgslowlyandisbelievedtohavebeendrawingairin,resultinginslowerengineaccelerationonfueloilduringinitialstartattempts.ineFuelOilBooster~suctionflangewasproperlytight~andanothersuccessfulstartofthe'E'/Gfollcwedat2040hourson5-17-90.Theloosesuctionflange,andresultantintroductionofairtothefueloilsystem,isbelievedtobethecauseofthe5-15-9.0surveillancetestfailure.Topreventrecurrence,theMaintenanceSectionwillrranitortheintegrityofthisflangeardotherfueloilsystemconnectionstooptimizetheinspectionpericdsforthesetypesofconnectionsconsistentwiththeD/Greliabilityprogramefforts.AsaresultofreviewoftheD/G4-10-90testrunclassification,performedsubsequenttothe5-15-900/Gslowstart,PP&Lis~iewingitspracticeccncerningwhenadieselrunisclassifiedasapostmaintenancetestversusoperabilirgtestandwiU..establishclearclassificationdirectionsconsistentwithRegulatoryGuide1.108.Theloosepm'uctionflange,discovered-afterthe5-15-90slowstart,isnewbelievedtobeapotentialcauseofthe4-10-90slurstart,whichwouldlendscrrcredencetoretroactiveclassificationofthe4-10-90slowstartasavalidtestfailure.Inthiscase,however,PPRLfeelsthatifbcrcislowstarts"areattributedtothissarw'.cause,itwouldnotbeinthebestinterestofthe0/Greliabilityeffortstore-classifythe4-10-90startattemptasavalid;.testfailure.'Ihiswouldresultinhavingtwo(2)failuresinthelast20,validtestsandatestintervalofonestartat,leastonceper7daysperTechSpecTable4.8.1.1.2-1,whichPPrLfeelswouldbeanunneoessaryburdenonthe'E'/Gandunjustifiablefranareliabilitystandpoint.duetoasingularcausalfactorwhichwascorrected.Assuchthe4-10-90slowstartwillremainclassifiedasancamalidtest.ThispositionwasreviewedwiththeNRrSeniorResidentInspector.D/G'E'asunavailableforsubstitutionusefran2125
: failures, validorinvalid,aretobereporttxt asrequiredbyRegulatory Guide1.108,SectionC.3.bandTechnical Specificaticn 4.8.1.1.4.
'I'4C~~~'8hourson'5-15-90to2040hourson5-17-90.'Ihe5-15-90'E'/Gslewstartteaisccnsideredavalidtestandvalidfailure.TheDieselGeneratorStartLogindicatesthereisone(1)dieselfailureinthelast20validtests.Thedieseltestintervalisonestartat1";~tonceper31daysperTechnicalSpecificationTable4.8.1.1.2-1.~sr'~.G.StanleySuperintendenofPlant-SusquehannaRRH/mmmmcc:U.SNuclearRegulatoryCcmnissionDonxmntControlDeskWashirx~n,DC20555Mr.G.S.BarberSr.ResidentinspectorU.S.NuclearRegulatoryCcnmissionP.O.Box35Berwick,PA18603-0035 A.2MotorDrivenPumpDataRHRpumpsNumberDemandsFailuresthru8990-97"totalthru89@90-97'otal1A1B1C1D2A2B2C2D4082686763032565591731993721982154139925735612827440286'51337892293180000000000000002021~01123,Total148419483432426QDatathrough89isobtainedinVolurncIIISectionC.loftheIPE-199litDemaddataisobtainedfromEC-RISK-1060,Rev.1.FailuredataisobtainedfromreviewsofSOOR&CRsummaries.ThesesummariesareprovidedinthisAppendixRHRPumpRunTimesTheRHRpumpruntimesandfailuresduringoperationwereobtainedfromtheIPRthrough1/1/90andestimatedfromtheattacheddatathrough12/31/97.ThenumberofpumpfailurestorunwereobtainedfromSOOR&CRsummaries.Therunhoursforthepumpsfrom1/90through12/97wereestimatedbymultiplyingtheclosedfractionreportedontheHRPDoutputbythenumberofhoursbetween1/90through12/97(70140hours).ThiswasrequiredbecausetheHRPDdatawasqueriedonlythrough7/31/96.RHRpumpstoRunNumberthru89fopen90-97totalFailuresthru8990-97total1A1B1C1D2A2B2C2DTotal57760.93148371061330290.9344627765636080.9543225683325960.9523365596125020.9473716621827040.9185749845320960.9255258735432350.92453288563000000002554636104616500,00  
OnNay15,1990at,2125hoursthe'E'ieselGyrator(D/G)wasstart~Ainaccorda~withsurveillance testSO-024W01 following itssubstitution forthe'O'/Gc&cmbeingrenaved~serviceformaintenance.
D/G'E'sasparefithD/Gwhichcanbesubstit~foranyofthefour(A,B,CorD)D/G'satSusquehanna.
The'E'/Gfailedtoachievegenerator.
frc~mcy~f60(+3.0,-3,0)Hzwithin10seccax1sasxmp~BbyTechnical Specification Surveillance Requirazant 4.8.1.1.2.a.
The.'E'/G wasshutdown.
Limiting'.".yditica forOperation (M3)3.8.1.1wasentered.'Ihe'D'/Gwassubstituted backinforthe'E'/G.Thus,fourseparate, independent D/G'swereagainOPERABLEasrequiredbytheTechnical Specifications andIlD3.8.1.1wascleared.Thswasthesecondobservedabnormalstartofthe'E'/Ginalittlemarethanaonenenthperiod.OnApril10,1990thecbservedgenerator frequency didnotmeetitsrequiredvaluewithin10secondsduringastartattarpt.'Ibisstartatemptwasclassified asancnmalidtestbyOperaticas sinceithadfollowedrtaintenance activities wh'chhadbeewperfoxmed onthe'E'/G.
Follcwing the4-10-90sluggishstartthe'E'/Gfrequency metercircuitwasenrrnined, alongwiththegovernorfuelrack,airstart,speedsensingandotherccmponents andnoabnormalities werefound.priortothestart,theairsupplytothestartingheaderhadbeenconf~t'oberxrrmalatgreaterthanorequalto240psig.Asecondstartattempthadbeensuccessful withtheD/Gattaining itsrequiredparrrmeters withinthe10secondtimelimit.Thespecificcause'fthe4-10-90slowstartcouldnotbedeterrruned atthattime,however,theinvestigation didnotidentifyanyreasonfortheslowstarttobeclassified asavalidtestorfailure.Asubsequent startatterrrpt on4-12-90at1331hourswasalsosuccessful withthe0/Gattaining allrequiredparameters withinthe10secondtinelimit.Following the5-15-90slowstart,asecondstartattemptwasmadewiththe0/Gnrccessfully attaining itsrequiredparameters withinthe10secondtirelimit.Aninvestigation wasthenconducted andseveralaircontmlpressurerrgulatororshuttlevalvesweredisassembled, inspected andtestedalongwithstartingrelaylogiccircuitry.
Noabnormalities werefound.Finally,thefueloilsystempipirrgwasinspected andaloosesuctionflangeontheDCFuelOilBoosterPumpwasfoundtobeleaki;rgslowlyandisbelievedtohavebeendrawingairin,resulting inslowerengineacceleration onfueloilduringinitialstartattempts.
ineFuelOilBooster~suctionflangewasproperlytight~andanothersuccessful startofthe'E'/Gfollcwedat2040hourson5-17-90.Theloosesuctionflange,andresultant introduction ofairtothefueloilsystem,isbelievedtobethecauseofthe5-15-9.0surveillance testfailure.Topreventrecurrence, theMaintenance Sectionwillrranitortheintegrity ofthisflangeardotherfueloilsystemconnections tooptimizetheinspection pericdsforthesetypesofconnections consistent withtheD/Greliability programefforts.AsaresultofreviewoftheD/G4-10-90testrunclassification, performed subsequent tothe5-15-900/Gslowstart,PP&Lis~iewingitspracticeccncerning whenadieselrunisclassified asapostmaintenance testversusoperabilirg testandwiU..establish clearclassification directions consistent withRegulatory Guide1.108.Theloosepm'uction flange,discovered-after the5-15-90slowstart,isnewbelievedtobeapotential causeofthe4-10-90slurstart,whichwouldlendscrrcredencetoretroactive classification ofthe4-10-90slowstartasavalidtestfailure.Inthiscase,however,PPRLfeelsthatifbcrcislowstarts"areattributed tothissarw'.cause,itwouldnotbeinthebestinterestofthe0/Greliability effortstore-classify the4-10-90startattemptasavalid;.testfailure.'Ihiswouldresultinhavingtwo(2)failuresinthelast20,validtestsandatestintervalofonestartat,leastonceper7daysperTechSpecTable4.8.1.1.2-1, whichPPrLfeelswouldbeanunneoessary burdenonthe'E'/Gandunjustifiable franareliability standpoint.
duetoasingularcausalfactorwhichwascorrected.
Assuchthe4-10-90slowstartwillremainclassified asancamalidtest.ThispositionwasreviewedwiththeNRrSeniorResidentInspector.
D/G'E'asunavailable forsubstitution usefran2125
'I'4C~~~'8hourson'5-15-90 to2040hourson5-17-90.'Ihe5-15-90'E'/Gslewstartteaisccnsidered avalidtestandvalidfailure.TheDieselGenerator StartLogindicates thereisone(1)dieselfailureinthelast20validtests.Thedieseltestintervalisonestartat1";~tonceper31daysperTechnical Specification Table4.8.1.1.2-1.
~sr'~.G.StanleySuperintenden ofPlant-Susquehanna RRH/mmmmcc:U.SNuclearRegulatory Ccmnission DonxmntControlDeskWashirx~n, DC20555Mr.G.S.BarberSr.Residentinspector U.S.NuclearRegulatory Ccnmission P.O.Box35Berwick,PA18603-0035 A.2MotorDrivenPumpDataRHRpumpsNumberDemandsFailuresthru8990-97"totalthru89@90-97'otal 1A1B1C1D2A2B2C2D4082686763032565591731993721982154139925735612827440286'51337892293180000000000000002021~01123,Total148419483432426QDatathrough89isobtainedinVolurncIIISectionC.loftheIPE-199litDemaddataisobtainedfromEC-RISK-1060, Rev.1.FailuredataisobtainedfromreviewsofSOOR&CRsummaries.
Thesesummaries areprovidedinthisAppendixRHRPumpRunTimesTheRHRpumpruntimesandfailuresduringoperation wereobtainedfromtheIPRthrough1/1/90andestimated fromtheattacheddatathrough12/31/97.
ThenumberofpumpfailurestorunwereobtainedfromSOOR&CRsummaries.
Therunhoursforthepumpsfrom1/90through12/97wereestimated bymultiplying theclosedfractionreportedontheHRPDoutputbythenumberofhoursbetween1/90through12/97(70140hours).ThiswasrequiredbecausetheHRPDdatawasqueriedonlythrough7/31/96.RHRpumpstoRunNumberthru89fopen90-97totalFailuresthru8990-97total1A1B1C1D2A2B2C2DTotal57760.93148371061330290.9344627765636080.9543225683325960.9523365596125020.9473716621827040.9185749845320960.9255258735432350.92453288563000000002554636104616500,00  


EmergencyServiceWaterPumps'umpDemandsNumberFailuresNumberFailuresABCD1559414721143929521302471422122271911310350Total542281306854TheESWpumpdemanddatawasobtainedfromEC-RISK-1060Rev.1.Thefailuredatathrough1989wasobtainedfromEC-RISK-0503.Rev.1.Failuressubsequentto1989wereobtainedfromareviewoftheSSPIandMaintenancerule'records.Nofailureswerereportedsubsequentto1989.CoreSprayPumps.Dataforthecorespraypumpsisderivedfromunitonedata.CoreStartsFailuresRunFailureSprayHours1A1B1C1D2A2B2C2DTotal2152361902021811981601701553328545531749592532873613291330920284180RHRSWTheRHRSWstartsandrunhourswereestimatedfromtheattachedHRPDdata.Thenumberswereestimatedsincethedatadidnotcovertheentiresaneofthedata.ThereforitwasassumedthatthepumpswereusedatasimilarfrequencyanddurationduringtheperiodswherethedataisabsentaswhenthedataisprovidedbyHRPD.Theratioofknowntoestimateddataisprovidedbelow.
Emergency ServiceWaterPumps'ump DemandsNumberFailuresNumberFailuresABCD1559414721143929521302471422122271911310350Total542281306854TheESWpumpdemanddatawasobtainedfromEC-RISK-1060 Rev.1.Thefailuredatathrough1989wasobtainedfromEC-RISK-0503.
RHRSWU14/30/987/1/837/1/839/10/8214.84110.8054790.948521/10/954/1/982/1/855/8/849.94520513.90685'0.715131A1B2A2BDemandOperatingKnownEstimatedKnownEstimated8428881690217819785828145311532070999114483202526438991243117383297936065834770774 NDBH-71UNIT'1,PAGE138FORHRPDDATAREPORTTHEINTERVALBETWEEN0:00ON7/01/83ANO23:59ON4/30/9805/21/9808:20:34INTERVALDURATION:30031:59:59POINT:EKZ43*-ESSBUS1ATOCSPRYPPASTATEDEFINITIONS:0-OPEN1-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALSINOPEN202TOTALTIMEOPEN2190'OTALTIMECLOSED14622:19:18CLOSED26953:40:25OUTOFSERVICEFRACTION:0.9763078:19:3415:09:51 qlNDBH-71UNIT1,PAGE156HRPDDATAREPORTFORTHEINTERVAI.BETWEEN0:00ON7/01/83AND23:59ON4/30/98'5/21/9808:20:34INTERVALDURATION:30031:59:59POINT:EKZ50ESSBUS18TO'CSPRYPP8STATEDEFINITIONS:0-OPEN1-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALSINOPEN222421313TOTALTIMEOPENTOTALTIMECLOSED556:29:13CLOSED25766:03:424265:56:1718:57:35IOUTOFSERVICEFRACTION:0.967IIIIIxAPi//cj.I~~~-cfst~~r~4/'/i/is~~~t4=g3>stirppowp~y'poW/f<LKP))3 UNIT1,PAGE171FORTHEINTERVALBETWEEN0:00ONHRPDDATAREPORT7/01/83AND23:59ON4/30/9805/21/9808:20:34INTERVALDURATION:30031:59:59POINT:EKZ57-ESSBUS1CTOCSPRYPPCSTATEDEFINITIONS:0-OPEN1-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALSINOPEN179TOTALTIMEOPEN3170TOTALTIMECLOSED12705:27:11CLOSED28392:27:56OUTOFSERVICEFRACTION:0.9871639:32:039:03:29 NDBH-71UNIT1,PAGE187FORHRPDDATAREPORTTHEINTERVALBETWEEN0:00ON7/01/83AND23:59ON4/30/9805/21/9808:20:34INTERVALDURATION:30031:59:59POINT:EKZ63-ESSBUS1DTOCSPRYPP0STATEDEFINITIONS:0-OPEN1-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALSINOPEN190518411TOTALTIMEOPENTOTALTIMECLOSED638:21:49CLOSEDI24480:56:18OUTOFSERVICEFRACTION:0.9575551:03:4128:36:49 NOSH-71UNIT2,PAGE17HRPDDATAREPORTFORTHEINTERVALBETWEEN0:01ON1/01/90AND23:59ON7/31/96POINT:EKZ71-ESSBUS2ATORHRPPASTATEDEFINITIONS:0-OPEN08/12/9610:31:40INTERVALDURATION:57695:58:591-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALSINOPEN211TOTALTIMEOPEN3172TOTALTIMECLOSED42255:21:45CLOSED54647:38:02OUTOFSERVICEFRAG'TION:0.9473048:20:5714:18:41  
Rev.1.Failuressubsequent to1989wereobtainedfromareviewoftheSSPIandMaintenance rule'records.
Nofailureswerereportedsubsequent to1989.CoreSprayPumps.Dataforthecorespraypumpsisderivedfromunitonedata.CoreStartsFailuresRunFailureSprayHours1A1B1C1D2A2B2C2DTotal2152361902021811981601701553328545531749592532873613291330920284180RHRSWTheRHRSWstartsandrunhourswereestimated fromtheattachedHRPDdata.Thenumberswereestimated sincethedatadidnotcovertheentiresaneofthedata.Thereforitwasassumedthatthepumpswereusedatasimilarfrequency anddurationduringtheperiodswherethedataisabsentaswhenthedataisprovidedbyHRPD.Theratioofknowntoestimated dataisprovidedbelow.
RHRSWU14/30/987/1/837/1/839/10/8214.84110.8054790.948521/10/954/1/982/1/855/8/849.94520513.90685'0.715131A1B2A2BDemandOperating KnownEstimated KnownEstimated 8428881690217819785828145311532070999114483202526438991243117383297936065834770774 NDBH-71UNIT'1,PAGE138FORHRPDDATAREPORTTHEINTERVALBETWEEN0:00ON7/01/83ANO23:59ON4/30/9805/21/9808:20:34INTERVALDURATION:
30031:59:59POINT:EKZ43*-ESSBUS1ATOCSPRYPPASTATEDEFINITIONS:
0-OPEN1-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALS INOPEN202TOTALTIMEOPEN2190'OTALTIMECLOSED14622:19:18CLOSED26953:40:25 OUTOFSERVICEFRACTION:
0.9763078:19:34 15:09:51 qlNDBH-71UNIT1,PAGE156HRPDDATAREPORTFORTHEINTERVAI.
BETWEEN0:00ON7/01/83AND23:59ON4/30/98'5/21/9808:20:34INTERVALDURATION:
30031:59:59 POINT:EKZ50ESSBUS18TO'CSPRYPP8STATEDEFINITIONS:
0-OPEN1-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALS INOPEN222421313TOTALTIMEOPENTOTALTIMECLOSED556:29:13 CLOSED25766:03:42 4265:56:17 18:57:35IOUTOFSERVICEFRACTION:
0.967IIIIIxAPi//cj.I~~~-cfst~~r~4/'/i/i s~~~t4=g3>stirppowp~y'poW/f<LKP))3 UNIT1,PAGE171FORTHEINTERVALBETWEEN0:00ONHRPDDATAREPORT7/01/83AND23:59ON4/30/9805/21/9808:20:34INTERVALDURATION:
30031:59:59 POINT:EKZ57-ESSBUS1CTOCSPRYPPCSTATEDEFINITIONS:
0-OPEN1-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALS INOPEN179TOTALTIMEOPEN3170TOTALTIMECLOSED12705:27:11 CLOSED28392:27:56 OUTOFSERVICEFRACTION:
0.9871639:32:03 9:03:29 NDBH-71UNIT1,PAGE187FORHRPDDATAREPORTTHEINTERVALBETWEEN0:00ON7/01/83AND23:59ON4/30/9805/21/9808:20:34INTERVALDURATION:
30031:59:59 POINT:EKZ63-ESSBUS1DTOCSPRYPP0STATEDEFINITIONS:
0-OPEN1-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALS INOPEN190518411TOTALTIMEOPENTOTALTIMECLOSED638:21:49 CLOSEDI24480:56:
18OUTOFSERVICEFRACTION:
0.9575551:03:41 28:36:49 NOSH-71UNIT2,PAGE17HRPDDATAREPORTFORTHEINTERVALBETWEEN0:01ON1/01/90AND23:59ON7/31/96POINT:EKZ71-ESSBUS2ATORHRPPASTATEDEFINITIONS:
0-OPEN08/12/9610:31:40INTERVALDURATION:
57695:58:59 1-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALS INOPEN211TOTALTIMEOPEN3172TOTALTIMECLOSED42255:21:45 CLOSED54647:38:02 OUTOFSERVICEFRAG'TION:
0.9473048:20:57 14:18:41  


NDBH-71UNIT2,PAGE35FORTHEINTERVALBETWEEN0:01ONPOINT:EKZ77-ESSBUS28TORHRPP8HRPDDATAREPORT1/01/90AND23:59ON7/31/96STATEDEFINITIONS:0-OPEN08/12/9610:3I:40INTERVALDURATION:57695:58:591-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALSINOPEN224TOTALTIMEOPEN4174TOTALT'IMECLOSED54231:41:10CLOSED52824:27:15OUTOFSERVICEFRACTION:0.9164871:31:4421:27:37 NDBH-71UNIT2,PAGE52FORTHEINTERVALBETWEEN0:01ONPOINT:EKZ82-ESSBUS2CTORHRPPCHRPDDATAREPORT1/01/90AND23:59ON7/31/96STATEDEFINITIONS:0-OPEN08/12/9610:31:40INTERVALDURATION:57695:58:591-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALSINOPEN203TOTALTIMEOPEN6146TOTALTIMECLOSED63255:17:11CLOSED53354:53:21OUTOFSERVICEFRACTION:0.9254341:05:3820:52:14 NDBH-71UNIT2,PAGE67FORTHEINTERVALBETWEENHRPDDATAREPORT0:01ON1/01/90AND23:59ON7/31/96POINT:EKZ87-ESSBUS2DTORHRPPDSTATEDEFINITIONS:0-OPEN08/12/9610:3'I:40INTERVALDURATION:57695:58:591-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALSINOPEN188TOTALTIMEOPEN3158TOTALTIMECLOSED33278:59:02CLOSED53285:57:40OUTOFSERVICEFRACTION:0.9244410:01:1923:12:38 POINT:EKZ41-ESSBUS1ATORHRPPASTATEDEFINITIONS:0-OPENNDBH-71UNIT1,PAGE18HRPDDATAREPORTFORTHEINTERVALBETWEEN0:01ON1/01/90AND23:59ON7/31/9608/12/9610:30:46INTERVALDURATION:57695:58:591-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALSINOPEN220TOTALTIMEOPEN3213TOTALTIMECLOSED10240:56:19CLOSED53729:21:40OUTOFSERVICEFRACTION:0.9313966:37:1917:52:03 NDBH-71UNIT1,PAGE35FORTHEINTERVALBETWEENHRPDDATAREPORT0:01ONI/01/90ANO23:59ON7/31/96POINT:EKZ48-ESSBUS18TORHRPP8STATEDEFINITIONS:0-OPEN08/12/9610:30:46INTERVALDURATION:5?695:58:59CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALSINOPEN208TOTALTIMEOPEN5203TOTALTIMECLOSED10252:52:38CLOSED53862:53:16OUTOFSERVICEFRACTION:0.9343833:05:4318:04:50 NDBH-71UNIT1,PAGE49FORTHEINTERVALBETWEEN0:01ONPOINT:EKZ55-ESSBUS1CTORHRPPCHRPDDATAREPORT1/01/90AND23:59ON7/31/96STATEDEFINITIONS:0-OPEN08/12/96103046INTERVALDURATION:57695:58:591-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALSINOPEN163TOTALTIMEOPEN3155TOTALTIMECLOSEDll331:42:08CLOSED55062:36:01OUTOFSERVICEFRACTION:0.9542633:22:5815:57:35  
NDBH-71UNIT2,PAGE35FORTHEINTERVALBETWEEN0:01ONPOINT:EKZ77-ESSBUS28TORHRPP8HRPDDATAREPORT1/01/90AND23:59ON7/31/96STATEDEFINITIONS:
0-OPEN08/12/9610:3I:40INTERVALDURATION:
57695:58:59 1-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALS INOPEN224TOTALTIMEOPEN4174TOTALT'IMECLOSED54231:41:10CLOSED52824:27:15 OUTOFSERVICEFRACTION:
0.9164871:31:4421:27:37 NDBH-71UNIT2,PAGE52FORTHEINTERVALBETWEEN0:01ONPOINT:EKZ82-ESSBUS2CTORHRPPCHRPDDATAREPORT1/01/90AND23:59ON7/31/96STATEDEFINITIONS:
0-OPEN08/12/9610:31:40INTERVALDURATION:
57695:58:591-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALS INOPEN203TOTALTIMEOPEN6146TOTALTIMECLOSED63255:17:11 CLOSED53354:53:21 OUTOFSERVICEFRACTION:
0.9254341:05:38 20:52:14 NDBH-71UNIT2,PAGE67FORTHEINTERVALBETWEENHRPDDATAREPORT0:01ON1/01/90AND23:59ON7/31/96POINT:EKZ87-ESSBUS2DTORHRPPDSTATEDEFINITIONS:
0-OPEN08/12/9610:3'I:40 INTERVALDURATION:
57695:58:59 1-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALS INOPEN188TOTALTIMEOPEN3158TOTALTIMECLOSED33278:59:02 CLOSED53285:57:40 OUTOFSERVICEFRACTION:
0.9244410:01:1923:12:38 POINT:EKZ41-ESSBUS1ATORHRPPASTATEDEFINITIONS:
0-OPENNDBH-71UNIT1,PAGE18HRPDDATAREPORTFORTHEINTERVALBETWEEN0:01ON1/01/90AND23:59ON7/31/9608/12/9610:30:46INTERVALDURATION:
57695:58:59 1-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALS INOPEN220TOTALTIMEOPEN3213TOTALTIMECLOSED10240:56:19 CLOSED53729:21:40 OUTOFSERVICEFRACTION:
0.9313966:37:19 17:52:03 NDBH-71UNIT1,PAGE35FORTHEINTERVALBETWEENHRPDDATAREPORT0:01ONI/01/90ANO23:59ON7/31/96POINT:EKZ48-ESSBUS18TORHRPP8STATEDEFINITIONS:
0-OPEN08/12/9610:30:46INTERVALDURATION:
5?695:58:59 CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALS INOPEN208TOTALTIMEOPEN5203TOTALTIMECLOSED10252:52:38 CLOSED53862:53:16 OUTOFSERVICEFRACTION:
0.9343833:05:43 18:04:50 NDBH-71UNIT1,PAGE49FORTHEINTERVALBETWEEN0:01ONPOINT:EKZ55-ESSBUS1CTORHRPPCHRPDDATAREPORT1/01/90AND23:59ON7/31/96STATEDEFINITIONS:
0-OPEN08/12/96103046INTERVALDURATION:
57695:58:59 1-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALS INOPEN163TOTALTIMEOPEN3155TOTALTIMECLOSEDll331:42:08 CLOSED55062:36:01 OUTOFSERVICEFRACTION:
0.9542633:22:58 15:57:35  


NDBH-71UNIT1,PAGE64FORTHEINTERVALBETWEEN0:01ONPOINT:EKZ61-ESSBUS1DTORHRPPDHRPDDATAREPORT1/01/90ANO23:59ON7/31/96STATEDEFINITIONS:0-OPEN08/12/9610:30:46INTERVALDURATION:57695:58:591-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCIOSEDAVGTIMEINTERVALSINOPEN178116712TOTALTIMEOPENTOTALTIMECLOSED306:51:42CLOSED54928:15:02OUTOFSERVICEFRACTION:0.9522767:43:5715:32:56 A.3SummaryofRHRSOORsandCRs.  
NDBH-71UNIT1,PAGE64FORTHEINTERVALBETWEEN0:01ONPOINT:EKZ61-ESSBUS1DTORHRPPDHRPDDATAREPORT1/01/90ANO23:59ON7/31/96STATEDEFINITIONS:
0-OPEN08/12/9610:30:46INTERVALDURATION:
57695:58:59 1-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCIOSEDAVGTIMEINTERVALS INOPEN178116712TOTALTIMEOPENTOTALTIMECLOSED306:51:42 CLOSED54928:15:02 OUTOFSERVICEFRACTION:
0.9522767:43:57 15:32:56 A.3SummaryofRHRSOORsandCRs.  


'NDBtl-71UNIT1,PAGE63HRPDDATAREPORTFORTHEINTERVALBETWEEN0:00ON7/01/83AND23:59ON4/30/9805/21/9808:20:34INTERVALDURATION:30031:59:59POINT:AEZ49-RHRSWPUMPABKRSTATEDEFINITIONS:0-OPEN1-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALSINOPEN773TOTALTIMEOPEN69824TOTALTIMECLOSED18134:21:29CLOSED$13129l41:05OUTOFSERVICEFRACTION:16902l18:54~J~gg20:05:52O.870~iI NDBH71UNIT1,PAGE122IHRPDDATAREPORTFORTHEINTERVALBETWEEN0:00ON7/01/83ANO23:59ON4/30/9805/21/9808:20:34INTERVALDURATION:30031:59:59POINT:AEZ50-RHRSWPUMP8'BKRSTATEDEFINITIONS:0-OPEN1-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALSINOPEN735TOTALTiMEOPEN50760TOTALTIMECLOSED25147:08:05CLOSED15500:55:43OUTOFSERVICEFRACTION:0.88814531:04:1618:32:04 NDBH-71UNIT2,PAGE53FOR-THEINTERVALBETWEENPDDATAREPORT0:00ON2/01/85ANO0:01ON1/01/9505/21/9808:24:05INTERVALDURATION:86904:01:59POINT:AEZ49-RHR-SWPUMPABKRSTATEDEFINIONS:0-OPEN1-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALSINOPEN645TOTALTIMEOPEN64636TOTALTIMECLOSED73102:08:41CLOSED72420:45:12OUTOFSERVICEFRACTION:0.83314483:16:4720:27:23 NDBH-71UNIT2,PAGE101FORTHEINTERVALBETWEENPOINT:AEZSO-RHRSWPUMP8BKR05/21/9808:24:05HRPDDATAREPORT0:00ON2/01/85AND0:01ON1/01/95INTERVALDURATION:86904:01:59STATEDEFINITIONS:0-OPEN1-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALSINOPEN579TOTALTIMEOPEN64612TOTALTIMECLOSED31115:49:13CLOSED74472:32:33OUTOFSERVICEFRACTION:0.85712431:29:2619:21:49 A.3SummaryofRHRSOORsandCRs.  
'NDBtl-71UNIT1,PAGE63HRPDDATAREPORTFORTHEINTERVALBETWEEN0:00ON7/01/83AND23:59ON4/30/9805/21/9808:20:34INTERVALDURATION:
30031:59:59 POINT:AEZ49-RHRSWPUMPABKRSTATEDEFINITIONS:
0-OPEN1-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALS INOPEN773TOTALTIMEOPEN69824TOTALTIMECLOSED18134:21:29CLOSED$13129l41:05OUTOFSERVICEFRACTION:
16902l18:54~J~gg20:05:52O.870~iI NDBH71UNIT1,PAGE122IHRPDDATAREPORTFORTHEINTERVALBETWEEN0:00ON7/01/83ANO23:59ON4/30/9805/21/9808:20:34INTERVALDURATION:
30031:59:59 POINT:AEZ50-RHRSWPUMP8'BKRSTATEDEFINITIONS:
0-OPEN1-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALS INOPEN735TOTALTiMEOPEN50760TOTALTIMECLOSED25147:08:05 CLOSED15500:55:43 OUTOFSERVICEFRACTION:
0.88814531:04:16 18:32:04 NDBH-71UNIT2,PAGE53FOR-THEINTERVALBETWEENPDDATAREPORT0:00ON2/01/85ANO0:01ON1/01/9505/21/9808:24:05INTERVALDURATION:
86904:01:59 POINT:AEZ49-RHR-SWPUMPABKRSTATEDEFINIONS:0-OPEN1-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALS INOPEN645TOTALTIMEOPEN64636TOTALTIMECLOSED73102:08:41 CLOSED72420:45:
12OUTOFSERVICEFRACTION:
0.83314483:16:47 20:27:23 NDBH-71UNIT2,PAGE101FORTHEINTERVALBETWEENPOINT:AEZSO-RHRSWPUMP8BKR05/21/9808:24:05HRPDDATAREPORT0:00ON2/01/85AND0:01ON1/01/95INTERVALDURATION:
86904:01:59 STATEDEFINITIONS:
0-OPEN1-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALS INOPEN579TOTALTIMEOPEN64612TOTALTIMECLOSED31115:49:13 CLOSED74472:32:33 OUTOFSERVICEFRACTION:
0.85712431:29:26 19:21:49 A.3SummaryofRHRSOORsandCRs.  


UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS00000000000000000000000000000000000000000000000000000000000000000000000000000000000777777777777777777777777777777777777777777777.000000000000000000000'000000000000000000000000000:0000000000000000000000000000000TTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTT11111111111111111111111111111111111111111JJJJJJJJJJJJJJJJJJJJJJJJJdJJJJJJJJJJdJJdJdJJJJJJJJJJJd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i~//US070TIJOB720588P~RJEWARPT,MAIL-GARYBURNS,SYSENG-2ND!1NOTIFY:US07JOBNAME:'S070T1USERID:US07SYSOUTCLASS:ADESTINATION:RJEBOe~PRINTTIME:10.49.084PRINTDATE:02OCT95PRINTERNAME:RJEBOPR10PRINTERTYPE:PRTt~~START++~++START+++~+START+++START+++++START+++++START+>+*+START<++++ST*RT+++
UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUU SSSSSSSSSS SSSSSSSSSSSS SSSSSSSSSSSSSSSSSS SSSSSSSSS SSSSSSSSSSSSSSSSSSSSS SSSSSSSSSS 000000000000000000 000000000000000000000000000000000000000000000000000000000 00000000777777777777 77777777777 7777777777777777777777.000000000000000 000000'000000000000000000000000000:00000000000000000000000 00000000TTTTTTTTTTTT TTTTTTTTTTTT TTTTTTTTTTTTTTTTTTTT1111111111111111111111111111111 1111111111 JJJJJJJJJJ JJJJJJJJJJ JJJJJdJJJJJJJJJJdJJdJdJJJJJJJJJJJd0000000000 000000000000 00OO0000OOOOOOOOOOOOOOOOOOOOOOOO000000000000 0000000000 BBBBBBBBBBB BBBBBBBBBBBB BBBBBBBBBBBBBBBBBBBBBB 8888868886 88868886BB88BBBBBBBBBBBB 88888888888 000000000000000000 000000000000000000000000000000000000000000000,000000000000 000000006666666666 666666666666 6666666666666666666 666666666666 6666666666.66666666666666 6666666666 655556665565 555555655555 556666555565666 5565656'666 666685666655656666 65566666566 000000000000000000 0000000000000000000000'000'000000000000000000000000000000 000000008888888888 888888888888 8888888888888888888888888888888888888888888888888888
UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU.UUUUUUUUUUUUUUUUUUUUUUUUSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS00000000000000000000000000000000000000,000000000000000000000000000000000000000000000777777777777777777777777777777777777777777777000000000000000000000000000000000000000000000000000000000000000000000000000000000TTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTT1111111111111111111111111111111111111111111JJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJ0000000000000000000000OOOOOO-OOOO.OOOO00OOOOOOOOOOOOOOOO0000000000000000000000BBBBBBB8888BBBBBBBBBBBBBB88BB88BBBBBBBBBBBBBBBBBBBBBBBB88BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB0000000000000000000000000000000000000000000000000000000000000000000000000000000000066666666666666666666666666666666666666666666666666666666666666666666666666666666666666655555555555555555555555565555555555555555555555555555555555555555555555555555500000000000000000000000000000000000000000000000000'0000000000000000000000000000000088888888888888888888888888888888888888888888888888888888888888888888888888888888888844//US07071JOB720588'RJEWARPT',MAIL-GARYBURNS'YS.ENG-2NDNOTIFY:US07JOBNAME:US070T1USERID:US07SYSOUTCLASS:ADESTINATION:RJEBOPRINTTIME:10.49.08PRINTDATE:02OCT95PRINTERNAME:RJEBOPR1PRINTERTYPE:PRT4++START+++++START++++START++e++START++eeeSTART+<+++START+++++START~~~W4r4<+START++++>
-8888888888 i~//US070TI JOB720588P~RJEWARPT,MAIL-GARYBURNS,SYSENG-2ND!1NOTIFY:US07JOBNAME:'S070T1USERID:US07SYSOUTCLASS:ADESTINATION:
PMIS:4910/02/95SUSQUANNASESSOORSUMMARYREPORTFORSYS49-UNIT0/1SORTEDBYUNIT,ISSUEDATE&SOOR/IPMI5PAGE1SYSSOORIiOCCURDATEDESCRIPTION4984-081OTHERAFFECTEDSYS:644986225OTHERAFFECTEDSYS:544987-395OTHERAFFECTEDSYS:514988-140OTHERAFFECTEDSYS:5052491-89-339OTHERAFFECTEDSYS:491-91-089/OTHERAFFECTEDSYS:491-91-266OTHERAFFECTEDSYS:512/09/847/23/057/02/875/05/8811/08/894/17/9110/18/91RHRPUMPSEALWTRCOOLERSAREINADEQUATELYDESIGNED.2/9/84EVALCOM.MTG.RECOMMENDS10CFR72REPORT,PLI-31058.THESEALWATERCOOLERSWEREREPLACEDWITHNEWSHELLSMADEOFCASTSTEELVS.CASTIRON.''NQAREVIEWREQ.DELETEDPEROPS-5R.S.CI.QSEDHR,ESWFLOWTRANSMITTERSCOMPLETELYCOVEREDUNDERWATER.AUSED~BY>GROUNDWATERLEAKINGBYSEALSINMANHOLES.WRAPS-0$l53PWjtITTENTODETERMINEREPAIRMETHODS.,EMPT./PMISSUEDTOPUMPDOWNMANHOLES.WAS65301&S73632C)OS)P"SEALEPfEPPTRATIONS.POSTLOCABYPASSLEAKAGEWATERSEALBARRIERISSUSPECTFOR.BRANCH'LINESCONNECTEDTORHRANDCORESPRAYSYSTEMS.LICENSINGREVIEWEDTHECONDITIONANDDETERMINEDTHATITWASNOTREPORTABLE.REF.NCR87-0288FORFURTHEREVALUATIONCLOSEDPOTENTIALREPORTABILITYRE:HPCI,RCIC&RHRLIMITORQUEOPERATORS.NUCLEARDESIGNCONCLUDEDTHATTHEAMOUNTINGARRANGEMENTWASNOTENVIRONMENTALLYQUALIFIED.LICENSINGDETERMINEDTHATTHECONDITIONISNOTREPORTABLEPERPART21.REFNCR'588-110,181,182&267.CLOSEDCONTAINMENTBOUNDRYVALVECAPFOUNDREMOVEDFROM151077&251077REFNCR89-0697AND701.REFEWRM00020WHICHDETERMINEDTHATTHECONDITIONDOESNOTVIOLATEPPLCOMMITMENTTOGDC-56.CLOSEDRWCUBLOWDOWNMAYNOTBEAVIABLEMETHODOFHEATREMOVALFROMCONTAINMENTBELOWAPPROX450PSIRXVESSELPRESSURE.ERTPERFORMED.REFPLI68259.ROOTCAUSEOFTHISOCCURRENCEWASINADEQUATECOMMUNICATION.THISCONTRIBUTEDTOTHEFAILURETORESOLVETHETECHNICALOPINIONDIFFERENCESBETWEENNUCLEARFUELS,SYSTEMENGINEERINGANDOPERATIONS.THISISCONSIDEREDTOBEANISOLATEDOCCURRENCEBETWEENTHESETWOWORKGROUPS.CLOSEDRHRANDCORESPRAYVALVESSUSCEPTIBLETOPRESSURELOCKING~RECOMMENDEDCORRECTIVEACTIONISTODRILLAHOLEINTHEDISKOFEACHAFFECTEDINJECTIONVALVE.REFDCP919080THRU9083'CP91"9080AND91-9082CORRECTEDFORUlDURING6RIO.DCP91-9081AND91-9083INSTALLEDDURINGU2BRIO.CLOSEDTOTAL:7  
RJEBOe~PRINTTIME:10.49.084PRINTDATE:02OCT95PRINTERNAME:RJEBOPR10PRINTERTYPE:PRTt~~START++~++START+++~+START+++START+++++START+++++START+>+*+START<++++ST*RT+++
UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU.UUUUUUUUUUUUUU UUUUUUUUUU SSSSSSSSSS SSSSSSSSSSSS SSSSSSSSSSSSSSSSSS SSSSSSSSS SSSSSSSSSSSSSSSSSSSSS SSSSSSSSSS 000000000000000000 00000000000000000000,0000000000000000000000000000000000000 00000000777777777777 77777777777 77777777777777777777770000000000000000 000000000000000000000000000000000000000000000000000000000 00000000TTTTTTTTTTTT TTTTTTTTTTTT TTTTTTTTTTTTTTTTTTTT111111111111111111111111111111111 1111111111 JJJJJJJJJJ JJJJJJJJJJ JJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJ0000000000 000000000000 OOOOOO-OOOO.OOOO00OOOOOOOOOOOOOOOO000000000000 0000000000 BBBBBBB8888 BBBBBBBBBBBB BB88BB88BBBBBBBBBBBBBB BBBBBBBBBB 88BBBBBBBBBBBBBBBBBBBBBB BBBBBBBBBBB 000000000000000000 000000000000000000000000000000000000000000000000000000000 000000006666666666 666666666666 6666666666666666666 666666666666 666666666666666666666666 6666666666 555555555555 555555555555 655555555555555 5555555555 555555555555555555 55555555555 000000000000000000 00000000000000000000000000000000'000000000000000000000000 000000008888888888 888888888888 8888888888888888888888888888888888888888888888888888 8888888888 44//US07071 JOB720588'RJE WARPT',MAIL-GARYBURNS'YS.ENG-2NDNOTIFY:US07JOBNAME:US070T1USERID:US07SYSOUTCLASS:ADESTINATION:
RJEBOPRINTTIME:10.49.08PRINTDATE:02OCT95PRINTERNAME:RJEBOPR1PRINTERTYPE:PRT4++START+++++START++++START++e++START++eeeSTART+<+++START+++++START~~~
W4r4<+START++++>
PMIS:4910/02/95SUSQUANNASESSOORSUMMARYREPORTFORSYS49-UNIT0/1SORTEDBYUNIT,ISSUEDATE&SOOR/IPMI5PAGE1SYSSOORIiOCCURDATEDESCRIPTION 4984-081OTHERAFFECTEDSYS:644986225OTHERAFFECTEDSYS:544987-395OTHERAFFECTEDSYS:514988-140OTHERAFFECTEDSYS:5052491-89-339OTHERAFFECTEDSYS:491-91-089/OTHERAFFECTEDSYS:491-91-266OTHERAFFECTEDSYS:512/09/847/23/057/02/875/05/8811/08/894/17/9110/18/91RHRPUMPSEALWTRCOOLERSAREINADEQUATELY DESIGNED.
2/9/84EVALCOM.MTG.RECOMMENDS 10CFR72REPORT,PLI-31058.
THESEALWATERCOOLERSWEREREPLACEDWITHNEWSHELLSMADEOFCASTSTEELVS.CASTIRON.''NQAREVIEWREQ.DELETEDPEROPS-5R.S.CI.QSEDHR,ESWFLOWTRANSMITTERS COMPLETELY COVEREDUNDERWATER.AUSED~BY>
GROUNDWATERLEAKINGBYSEALSINMANHOLES.
WRAPS-0$l53PWjtITTENTODETERMINE REPAIRMETHODS.,EMPT./PM ISSUEDTOPUMPDOWNMANHOLES.
WAS65301&S73632C)OS)P"SEALEPfEPPTRATIONS.
POSTLOCABYPASSLEAKAGEWATERSEALBARRIERISSUSPECTFOR.BRANCH'LINES CONNECTED TORHRANDCORESPRAYSYSTEMS.LICENSING REVIEWEDTHECONDITION ANDDETERMINED THATITWASNOTREPORTABLE.
REF.NCR87-0288FORFURTHEREVALUATION CLOSEDPOTENTIAL REPORTABILITY RE:HPCI,RCIC&RHRLIMITORQUE OPERATORS.NUCLEARDESIGNCONCLUDED THATTHEAMOUNTING ARRANGEMENT WASNOTENVIRONMENTALLY QUALIFIED.
LICENSING DETERMINED THATTHECONDITION ISNOTREPORTABLE PERPART21.REFNCR'588-110,181,182&267.CLOSEDCONTAINMENT BOUNDRYVALVECAPFOUNDREMOVEDFROM151077&251077 REFNCR89-0697AND701.REFEWRM00020WHICHDETERMINED THATTHECONDITION DOESNOTVIOLATEPPLCOMMITMENT TOGDC-56.CLOSEDRWCUBLOWDOWNMAYNOTBEAVIABLEMETHODOFHEATREMOVALFROMCONTAINMENT BELOWAPPROX450PSIRXVESSELPRESSURE.
ERTPERFORMED.
REFPLI68259.ROOTCAUSEOFTHISOCCURRENCE WASINADEQUATE COMMUNICATION.
THISCONTRIBUTED TOTHEFAILURETORESOLVETHETECHNICAL OPINIONDIFFERENCES BETWEENNUCLEARFUELS,SYSTEMENGINEERING ANDOPERATIONS.
THISISCONSIDERED TOBEANISOLATEDOCCURRENCE BETWEENTHESETWOWORKGROUPS.CLOSEDRHRANDCORESPRAYVALVESSUSCEPTIBLE TOPRESSURELOCKING~RECOMMENDED CORRECTIVE ACTIONISTODRILLAHOLEINTHEDISKOFEACHAFFECTEDINJECTION VALVE.REFDCP919080THRU9083'CP91"9080AND91-9082CORRECTED FORUlDURING6RIO.DCP91-9081AND91-9083INSTALLED DURINGU2BRIO.CLOSEDTOTAL:7  


PMIS:EVR4910/02/95SUSQUEHANNASESSOORSUMMARYREPORTFORSYS49-UNIT0/1SORTEDBYUNIT,ISSUEDATEdSOORttPMISPAGE2SYSSOORtt4983-063/)/~wc'.<498306449,8508849'3-12949C.83-15549,v833344983-3704983-3734984-0574984-O7O4984-1384984-2044984-298OCCURDATE2/16/832/16/832/18/834/08/835/13/8311/06/8312/03/8312/07/831/29/842/03/843/21/844/29/847/21/84DESCRIPTIONALTEPABKRTRIPCAUSEDLOSSOFS/DCOOLING.ALTERNATEPOWERSUPPLYTOTHERPSISNOTISOLATEDFROMTHEPLANTELECTRICALSYSTEMANDTRIPSONSMALLVOLTAGEORFREQUENCYOSCILLATIONS.'QAREVIEW(EQ.DELETEDPEROPS-5R.S.CLOSED'"''1ALT'PABKR.TRIPCAUSEDLOSSOFRHRS/DCOOLINGALTERNATEPOWERSUPPLYTOTHERPSISNOTISOLATEDFROMTHEPLANTELECTRICALiS)STEMiTRIPSONSMALLVOLTAGEORFREQUENCYOSCILt:ATiONS.'"~'ttAttEVIEWREQ.DELETEDPEROPS-5R.B.RHR"'BhINJ.VALVEHIGHVIBRATION.(F017VALVES)THEOPERAiTit(GJPROCEDURESHAVEBEENMODIFIED.PgR82"'051)'l('lSQ't)PFULE)RELEASED8/7/84."INQ'4+REVIEW<REQ)'DELETEDPEROPS-5R.5.pAO(I'~>'itHHRHfPISCHARGEVALVE1F0038.WOULDNOTOPEN.TEPTORWAS"tt'Ekg)L'CED.WA-S31070NR'REVIEW'RP'Q.DELETEDPEROPS-5R.S.C)OSPD"''5/DCOOLINGHIGHFLOWSWITCHWASOUTOFTOLERANCELIMITS.BARTONMODEL28IBASETPOINTDRIFT~CCALIBRATIONDATAISBEINGTRENDED-REFSOOR2BPP49WHICHISMASTER'CLOSED.RHRLOOP'8'ECLAREDINOP-CHECKVALVE)F0318WOULDNOTSEAT.CAUSED'BYMIS"A).'1GNt(ENT"OFTHEVALVEDISCANDABENTHINGEPIN.EWR')DSEA60003'7tPROVIDEDCORRECTIVEACTION.PHRSYS"VLVSWEPE'f(SPECTED/REPAIREDASNEEDED.tCLOSED>I8WhiRHRVALVESFAILEDTOMEETACCEPTANCECRITERIA.THE).EAKAGEPAST'RHRTESTABLECHECKVALVES(1F050Ad8)ANDE'QUA).12ING'VAKVESV'((F122Ad8)WASTOOGREATTOBEMEASURED.PERMANEN'P(CHANGE'MADETOS0-100-019..tCLOSED(DCC1.8IRHRCONDUOTIVITYINSTRUMENTCR1.2351INACCURATE.EMOSWRITTQMtTOS/A(SANDOPSABOUTREPORTINGWHENCHEMISTRYgi'TAKENG'SAtlPL'ES~.CL6SED/DOCS('.'1ECIRCUITSt(OTISOLATEDFORRHR.10CF(50.'65EAND)OCfR21REPORTSWEREMADE~RPF'1SOOR'-8/~0)2:CLOSEDI)VRHRPUMP.TRIP.QNDVALVESF008dF009CLOSEDWITHNOALARMS.PROBhBf.'ECAUSEFROMHIGHFLOWASARESULTOFVALVINGOPERATIONS.SYSeWASt(E)klPNjEDiTOSERVICEWITHOUTINCIDENTa"-C'LOSPD'i.".4!r'4'Plt~RHRSHUTDOtlCOOLINGISOLATIONACTUATION,HIGHFLOWSUSPECTEDSPURIOUSiATUATIONOFRHRDIFF.PRESSURESWITCHESCAUSEDCLOSUREOF'SH,TDOWtCOOLINGINBOARDANDOUTBOARDISOLATIONVALVES.THISWAS'iAIACTA/ION'DFANENGINEEREDSAFETYFEATURE.ESF~6'EVET'HA'NOT'RE-OCCURREDASOF10/6/86NOFURTHERACTIONSAREPLANEO.'EFMASTERSOOR2-86-171.C,LOSEP'A'OOPRHRUNITIIINOP.UNABLETOCOMPLETES0-149-002.CLOSEPRHRLOOP'BiTESTCHECKVALVE1F0508REC'DDUALINDICATIONSISIWASPERFORMEDANDENG.ANALYSISWASMADETHATVLV.FUNCTIO((SPROPERLY.
PMIS:EVR49 10/02/95SUSQUEHANNA SESSOORSUMMARYREPORTFORSYS49-UNIT0/1SORTEDBYUNIT,ISSUEDATEdSOORttPMISPAGE2SYSSOORtt4983-063/)/~wc'.<
PMIS:E4910/02/95'USQUE>...SESSOORSUMMARYREPORTFORSYS49-UNIT0/1SORTEDBYUNIT,ISSUEDATE&SOOR11PMISSYSSOORNOCCURDATEDESCRIPTION4984299OTHERAFFECTEDSYS:4984-3167/21/848/20/84CLOSEDRHRLOOP'8'QUALIZERVALVE1F1228DUALINDICATION.VLV.VERIFIEDCLOSEDBYVENTINGUPSTREAMPIPING,NOPRESSUREORFLOWWASOBSERVED.WA544361WILLREWORKTHEPOSITIONSWITCHWHICHISSUSPECT.REQUIRESCONTAINMENTENTRY.CLOSEDRHR"8INOPDUETOFAILEDISI.SO'SWILLBEREVISEDTOREFLECTTHE96HOUREVALUATIONSTATEDINTHEASMECODE.CLOSED.OTHERAFFECTEDSYS:4984-47412/19/84-49j~'84-344M="''-'-9/'11/84'A'HRSUPPRESSIONPOOLCOOLINGFULLFLOWTESTVALVEINOP.VALVE1F024A.ACTUATORPINIONGEARKEYWASMISSING.WA544663REPLACEDKEYANDRESTOREDSYSTEM.NQAREVIEWREQ.DELETEDPEROPS-5R.B.CLOSED'RHRF028AVLV.BINDINGANDREPEATEDLYTRIPPINGBREAKER.INVESTIGATEOBY.MNT&PACKING'WASLUBED&ADJUSTED,VLV.THEN"OPERATEDPROPERLY.CLOSED4984-4834985-049OTHERAFFECTEDSYS:64834985-09249e85-1324985-1544985-1454985-1504985-18312/25/842/01/853/04/854/27/855/15/855/16/855/20/856/08/86"HIGHPRESSISOLATIONOFRHRSDCOOLING,HV151F009WOULDN'TCLEARNECESSARYTOISOLATE/VENTPRESSSWITCH831-N018ATOOPENVALVE.PMR86-7026WILLPROVIDECORRECTIVEh1EASURESWHICHWILLBETRACKEDBYMASTERSOOR2-85-032.CLOSEDEXCESS,FLOWCHECKVALVESFAILEDSURVEILLANCETEST.XV-821-F072CFAILEDTOISOLATE,XV-831-F057AFAILEDTOREOPEN&XV-831-F0038FAILEDTOISOLATE.WAS50048REPLACEDBLOWNFUSE.CLOSEDTODCCRADIOGRAPHYSOURCEWOULDNOTRETRACTINTOIT'SHOLDER,DURINGRHR178VALVEWELDINSPECTOIN.++CANCELLED/DOC~~BYPASS1-85-046REMOVEDCAUSINGLOSSOFSHUTDOWNCOOLINGISOVLVROOTCAUSEWASSTATESLINKSWEREOPENEDINPNL.1C201TOIMPLEMENTPMR82-434,ANDTHISACTIONWASNOTDOCUh1ENTED.WA-551134INVESTIGATEDANDCORRECTED.REF.MASTERSOOR2-85-112CLOSED.RHRINIATIONPERMISSIVESETPOINTPS-831-1N0188OUTOFTOL.FOUNDDURINGSI149-304,WASRE-CAL'ED.SAT.CAUSEDBYINSTRUX1ENTDRIFT.CLOSEDRHRMINFLOWVALVETIMEDELAY,FOROPENING,DIDNOTFUNCTION.1F007A.STATUS:REF.MASTERSOOR1-85-150CLOSED1F007AOPENEDTOSUPPRESSIONPOOLWHILERUNNING'A'HRPUMPFOPSHUTDOWNCOOLING..WA-551403INVESTIGATEDANDEVENTCOULDNOTBEDUPLICATEDNORACAUSEDETERlhIPPD.'LOSEDWATERHAMMEROCCURREDWHEN'A'HRPUMPWASSTARTED.DUETOPIPING'EINGDRAINEDAND-OP-149-00'OTBEINGPERFORMEDPROPERLY.)NVOI.VEDOPERATION'SPERSONNELWERECOUNSELED.
498306449,8508849'3-12949C.83-15549,v833344983-3704983-3734984-0574984-O7O4984-1384984-2044984-298OCCURDATE2/16/832/16/832/18/834/08/835/13/8311/06/8312/03/8312/07/831/29/842/03/843/21/844/29/847/21/84DESCRIPTION ALTEPABKRTRIPCAUSEDLOSSOFS/DCOOLING.ALTERNATE POWERSUPPLYTOTHERPSISNOTISOLATEDFROMTHEPLANTELECTRICAL SYSTEMANDTRIPSONSMALLVOLTAGEORFREQUENCY OSCILLATIONS.
PMI6:R4910/02/95SUSQUEHANNASESSOORSUMMARYREPORTFORSYS49-UNIT0/1SORTEDBYUNIT,ISSUEDATE6SOORNPMIS:PAGE4SYSBOORNOCCUR.DATEDESCRIPTION4985-2184985-277OTHERAFFECTEDSYS:594986-0094986-03149860554986-0624986-0654986-0804986-1017/12/859/10/851/08/861/31/862/19/862/28/863/01/863/16/863/31/86ITEMISONOPSAGENDA85-09.CLOSEDTODCCRHRROOTVALVESFOUNDCLOSED'OLDIDNOTINCLUDETHEM.RV-1-FT1N0136RV-2-FT-1N013FORFI-1R607.PCAF1-85-0895CORRECTEDCONDITION.CLOSEDTODCCRHR/HPCIVLVEXERCISESURVSE149-2056SE-152-201NOTPERFORMEDASREQUIRED.INADEQUATEREVIEWOFPMISANDSCHEDULINGERRORSCAUSEDTHESURVTOMISSED.THISISMASTERSOORFOR1-85-276,2386253.OPSISSUED50-153-003;REVISED50-013/113/213-009,REPLACEDSE-111/211-201,465WITH"SO"PROCEDURESCLOSEDRHRFLOWRECORDERFR-E11-1R608FOUNDOUTOFTOL.INSTRUMENTISUSEDDURING50-149002,OPSINVESTIGATIONREVEALEDTHAT-RESULTSWERENOTAFFECTED.CLOSEDFLOWINSUPPRESSIONPOOLSPRAYWASNOTED,1F0278NOTSEATED'OLLOWINGPERFORMANCEOF50-149-005.PROBABLECAUSEWASTHATTHEHANDSWITCHWASNOTHELDINTHECLOSE"POSITIONEVENTTOBERE-VIEWEDBYLICENSEDPERSONNEL.SO-149-005REVISED.CLOSED'8'HRSWINGBUSMGSETTRIPPED,WASHOTWHENTOUCHEDBYOPERATORINVESTIGATINGEVENT.LCOENTERED.NOPROBLEMWASIDENTIFIED,NOFURTHEROCCURRENCESWEREEXPERIENCED'NDHEATWASDETERMINEDTOBENORMAL.CLOSEDJUMPERSINCORRECTLYPLACEDPERSE-149-001WHILETESTINGRHRBKRSJUMPERWASPLACEDONTHEWRONGSIDEOFADROPPINGRESISTOR.WA-552586INSPECTEDFORDAMAGE,NONEWASFOUND.INVOLVEDPERSONNELREVIEWEDTHEEVENT,ANDPROCEDURALWORDINGHASBEENREVIEWED.CLOSED'A'HRPUMPOPERATEDWITHOUTTHRUSTBEARINGCOOLINGVALVEDIN.VALVE111-129AWASCLOSED'UETOIMPROPERTRACKINGOFVALVESTATUSONWAT53113ANDINCOMPLETEEQUIP.CHECKBY'PSPRIORTOSTARTING.REF.HPESREPORT86-010.MAINTANDOPSPERSONNELREVIEWEDTHEEVENT.CLOSEDRHR'A'OOPMINFLOWVALVEACTUATIONLOWEREDVESSELINVENTORYWHENITAUTOOPENEDANDDIDNOTRECLOSECOMPLETELYWITHHANDSWI.TCHOPERATION,HV"E11F007A,DUETOINADEQUATESPRING-PACPRESSURE.WA560484REPLACEDSPRING-PACWITHONEOFAHIGHERRANGE,ANDADJUSTEDTORQUESWITCHSETTINGTOAHIGHERLEVEL.CLOSEDRHR1F007AREPEATEDLYSTROKEDOPENAFTERITWASCLOSED.EVENTOCCURREDWHILERESTORINGESS18{1A202).1F007AISTHEMINFLOWVALVETOSUPPRESSIONPOOL.CAUSEDBYOPENINGSUPPLYBKRS.FORHV-1F00849.PCAF1-86-451WRITTENTOPROHIBITOVERRIDINGSYS/EQUIPMENTCONTROLS.CLOSED~c>A~~C49A86-2707/15/86~'"-49~'~>,87,604'~/V'P~.""-"~-.-'-"'-.*'."4/04/h7RHRSUPPRESSIONPOOLSPRAYPUMPSUCTIONPI-E11-1R002COUTOFTOLFOUNDDURINGPM01850-01,INSTRUMENTISUSEDDURINGTECHSPEC4.0.6PUMPTESTING.INSTRUMENT,WASREPLACED6SO-149-002WASPERFORMEDWITHRESULTSSAT.CLOSED:RHR'SHUTOFFVALVE.1FONBBWOULb'NOTSTROKEOPEN~f/DURINGATTEMPTTOINITIATESUPPRESSIONPOOLCOOLING.'j  
'QAREVIEW(EQ.DELETEDPEROPS-5R.S.CLOSED'"''1ALT'PABKR.TRIPCAUSEDLOSSOFRHRS/DCOOLINGALTERNATE POWERSUPPLYTOTHERPSISNOTISOLATEDFROMTHEPLANTELECTRICALi S)STEMiTRIPSONSMALLVOLTAGEORFREQUENCY OSCILt:ATiONS.'"
~'ttAttEVIEWREQ.DELETEDPEROPS-5R.B.RHR"'BhINJ.VALVEHIGHVIBRATION.
(F017VALVES)THEOPERAiTit(GJPROCEDURES HAVEBEENMODIFIED.
PgR82"'051)'l('lSQ't)PFULE)
RELEASED8/7/84."INQ'4+REVIEW
<REQ)'DELETEDPEROPS-5R.5.pAO(I'~>'itHHRHfPISCHARGE VALVE1F0038.WOULDNOTOPEN.TEPTORWAS"tt'Ekg)L'CED.
WA-S31070 NR'REVIEW'RP'Q.DELETEDPEROPS-5R.S.C)OSPD"''
5/DCOOLINGHIGHFLOWSWITCHWASOUTOFTOLERANCE LIMITS.BARTONMODEL28IBASETPOINTDRIFT~CCALIBRATION DATAISBEINGTRENDED-REFSOOR2BPP49WHICHISMASTER'CLOSED.RHRLOOP'8'ECLARED INOP-CHECKVALVE)F0318WOULDNOTSEAT.CAUSED'BY MIS"A).'1GNt(ENT" OFTHEVALVEDISCANDABENTHINGEPIN.EWR')DSEA 60003'7tPROVIDED CORRECTIVE ACTION.PHRSYS"VLVSWEPE'f(SPECTED/REPAIRED ASNEEDED.tCLOSED>I8WhiRHRVALVESFAILEDTOMEETACCEPTANCE CRITERIA.
THE).EAKAGEPAST'RHRTESTABLECHECKVALVES(1F050Ad8)ANDE'QUA).12ING'VAKVESV'((F122A d8)WASTOOGREATTOBEMEASURED.
PERMANEN'P(CHANGE'MADE TOS0-100-019..
tCLOSED(DCC 1.8IRHRCONDUOTIVI TYINSTRUMENT CR1.2351INACCURATE.
EMOSWRITTQMtTOS/A(SANDOPSABOUTREPORTING WHENCHEMISTRY gi'TAKENG'SAtlPL'ES~.
CL6SED/DOCS(
'.'1ECIRCUITSt(OTISOLATEDFORRHR.10CF(50.'65E AND)OCfR21REPORTSWEREMADE~RPF'1SOOR'-8/~0)2:CLOSEDI)VRHRPUMP.TRIP.QNDVALVESF008dF009CLOSEDWITHNOALARMS.PROBhBf.'E CAUSEFROMHIGHFLOWASARESULTOFVALVINGOPERATIONS.
SYSeWASt(E)klPNjEDiTO SERVICEWITHOUTINCIDENTa"-C'LOSPD'i.".4!r
'4'Plt~RHRSHUTDOtlCOOLINGISOLATION ACTUATION, HIGHFLOWSUSPECTED SPURIOUSi ATUATIONOFRHRDIFF.PRESSURESWITCHESCAUSEDCLOSUREOF'SH,TDOWtCOOLINGINBOARDANDOUTBOARDISOLATION VALVES.THISWAS'iAIACTA/ION'DFANENGINEERED SAFETYFEATURE.ESF~6'EVET'HA'NOT'RE-OCCURRED ASOF10/6/86NOFURTHERACTIONSAREPLANEO.'EFMASTERSOOR2-86-171.
C,LOSEP'A'OOP RHRUNITIIINOP.UNABLETOCOMPLETES0-149-002.
CLOSEPRHRLOOP'BiTESTCHECKVALVE1F0508REC'DDUALINDICATIONS ISIWASPERFORMED ANDENG.ANALYSISWASMADETHATVLV.FUNCTIO((S PROPERLY.
PMIS:E4910/02/95'USQUE
>...SESSOORSUMMARYREPORTFORSYS49-UNIT0/1SORTEDBYUNIT,ISSUEDATE&SOOR11PMISSYSSOORNOCCURDATEDESCRIPTION 4984299OTHERAFFECTEDSYS:4984-3167/21/848/20/84CLOSEDRHRLOOP'8'QUALIZER VALVE1F1228DUALINDICATION.
VLV.VERIFIEDCLOSEDBYVENTINGUPSTREAMPIPING,NOPRESSUREORFLOWWASOBSERVED.
WA544361WILLREWORKTHEPOSITIONSWITCHWHICHISSUSPECT.REQUIRESCONTAINMENT ENTRY.CLOSEDRHR"8INOPDUETOFAILEDISI.SO'SWILLBEREVISEDTOREFLECTTHE96HOUREVALUATION STATEDINTHEASMECODE.CLOSED.OTHERAFFECTEDSYS:4984-47412/19/84-49j~'84-344 M="''-'-9/'11/84'A'HRSUPPRESSION POOLCOOLINGFULLFLOWTESTVALVEINOP.VALVE1F024A.ACTUATORPINIONGEARKEYWASMISSING.WA544663REPLACEDKEYANDRESTOREDSYSTEM.NQAREVIEWREQ.DELETEDPEROPS-5R.B.CLOSED'RHRF028AVLV.BINDINGANDREPEATEDLY TRIPPINGBREAKER.INVESTIGATEO BY.MNT&PACKING'WASLUBED&ADJUSTED, VLV.THEN"OPERATED PROPERLY.
CLOSED4984-4834985-049OTHERAFFECTEDSYS:64834985-09249e85-1324985-1544985-1454985-1504985-18312/25/842/01/853/04/854/27/855/15/855/16/855/20/856/08/86"HIGHPRESSISOLATION OFRHRSDCOOLING,HV151F009 WOULDN'TCLEARNECESSARY TOISOLATE/VENT PRESSSWITCH831-N018A TOOPENVALVE.PMR86-7026WILLPROVIDECORRECTIVE h1EASURES WHICHWILLBETRACKEDBYMASTERSOOR2-85-032.
CLOSEDEXCESS,FLOWCHECKVALVESFAILEDSURVEILLANCE TEST.XV-821-F072C FAILEDTOISOLATE,XV-831-F057A FAILEDTOREOPEN&XV-831-F0038 FAILEDTOISOLATE.WAS50048REPLACEDBLOWNFUSE.CLOSEDTODCCRADIOGRAPHY SOURCEWOULDNOTRETRACTINTOIT'SHOLDER,DURINGRHR178VALVEWELDINSPECTOIN.
++CANCELLED/DOC~~
BYPASS1-85-046REMOVEDCAUSINGLOSSOFSHUTDOWNCOOLINGISOVLVROOTCAUSEWASSTATESLINKSWEREOPENEDINPNL.1C201TOIMPLEMENT PMR82-434,ANDTHISACTIONWASNOTDOCUh1ENTED.
WA-551134 INVESTIGATED ANDCORRECTED.
REF.MASTERSOOR2-85-112CLOSED.RHRINIATIONPERMISSIVE SETPOINTPS-831-1N0188 OUTOFTOL.FOUNDDURINGSI149-304,WASRE-CAL'ED.
SAT.CAUSEDBYINSTRUX1ENT DRIFT.CLOSEDRHRMINFLOWVALVETIMEDELAY,FOROPENING,DIDNOTFUNCTION.
1F007A.STATUS:REF.MASTERSOOR1-85-150CLOSED1F007AOPENEDTOSUPPRESSION POOLWHILERUNNING'A'HRPUMPFOPSHUTDOWNCOOLING..
WA-551403 INVESTIGATED ANDEVENTCOULDNOTBEDUPLICATED NORACAUSEDETERlhIPPD.'LOSED WATERHAMMEROCCURREDWHEN'A'HRPUMPWASSTARTED.DUETOPIPING'EING DRAINEDAND-OP-149-00'OT BEINGPERFORMED PROPERLY.
)NVOI.VED OPERATION'S PERSONNEL WERECOUNSELED.
PMI6:R4910/02/95SUSQUEHANNA SESSOORSUMMARYREPORTFORSYS49-UNIT0/1SORTEDBYUNIT,ISSUEDATE6SOORNPMIS:PAGE4SYSBOORNOCCUR.DATEDESCRIPTION 4985-2184985-277OTHERAFFECTEDSYS:594986-0094986-03149860554986-0624986-0654986-0804986-1017/12/859/10/851/08/861/31/862/19/862/28/863/01/863/16/863/31/86ITEMISONOPSAGENDA85-09.CLOSEDTODCCRHRROOTVALVESFOUNDCLOSED'OL DIDNOTINCLUDETHEM.RV-1-FT1N013 6RV-2-FT-1N013 FORFI-1R607.
PCAF1-85-0895 CORRECTED CONDITION.
CLOSEDTODCCRHR/HPCIVLVEXERCISESURVSE149-2056SE-152-201 NOTPERFORMED ASREQUIRED.
INADEQUATE REVIEWOFPMISANDSCHEDULING ERRORSCAUSEDTHESURVTOMISSED.THISISMASTERSOORFOR1-85-276, 2386253.OPSISSUED50-153-003; REVISED50-013/113/213-009, REPLACEDSE-111/211-201,465 WITH"SO"PROCEDURES CLOSEDRHRFLOWRECORDERFR-E11-1R608 FOUNDOUTOFTOL.INSTRUMENT ISUSEDDURING50-149002,OPSINVESTIGATION REVEALEDTHAT-RESULTSWERENOTAFFECTED.
CLOSEDFLOWINSUPPRESSION POOLSPRAYWASNOTED,1F0278NOTSEATED'OLLOWING PERFORMANCE OF50-149-005.
PROBABLECAUSEWASTHATTHEHANDSWITCH WASNOTHELDINTHECLOSE"POSITIONEVENTTOBERE-VIEWEDBYLICENSEDPERSONNEL.
SO-149-005REVISED.CLOSED'8'HRSWINGBUSMGSETTRIPPED,WASHOTWHENTOUCHEDBYOPERATORINVESTIGATING EVENT.LCOENTERED.NOPROBLEMWASIDENTIFIED, NOFURTHEROCCURRENCES WEREEXPERIENCED'ND HEATWASDETERMINED TOBENORMAL.CLOSEDJUMPERSINCORRECTLY PLACEDPERSE-149-001 WHILETESTINGRHRBKRSJUMPERWASPLACEDONTHEWRONGSIDEOFADROPPINGRESISTOR.
WA-552586 INSPECTED FORDAMAGE,NONEWASFOUND.INVOLVEDPERSONNEL REVIEWEDTHEEVENT,ANDPROCEDURAL WORDINGHASBEENREVIEWED.
CLOSED'A'HRPUMPOPERATEDWITHOUTTHRUSTBEARINGCOOLINGVALVEDIN.VALVE111-129AWASCLOSED'UE TOIMPROPERTRACKINGOFVALVESTATUSONWAT53113ANDINCOMPLETE EQUIP.CHECKBY'PSPRIORTOSTARTING.
REF.HPESREPORT86-010.MAINTANDOPSPERSONNEL REVIEWEDTHEEVENT.CLOSEDRHR'A'OOPMINFLOWVALVEACTUATION LOWEREDVESSELINVENTORY WHENITAUTOOPENEDANDDIDNOTRECLOSECOMPLETELY WITHHANDSWI.TCHOPERATION, HV"E11F007A,DUETOINADEQUATE SPRING-PAC PRESSURE.
WA560484REPLACEDSPRING-PAC WITHONEOFAHIGHERRANGE,ANDADJUSTEDTORQUESWITCHSETTINGTOAHIGHERLEVEL.CLOSEDRHR1F007AREPEATEDLY STROKEDOPENAFTERITWASCLOSED.EVENTOCCURREDWHILERESTORING ESS18{1A202).1F007AISTHEMINFLOWVALVETOSUPPRESSION POOL.CAUSEDBYOPENINGSUPPLYBKRS.FORHV-1F00849.
PCAF1-86-451WRITTENTOPROHIBITOVERRIDING SYS/EQUIPMENT CONTROLS.
CLOSED~c>A~~C49A86-2707/15/86~'"-49~'~>,87, 604'~/V'P~.""-"~-.-'-"
'-.*'."4/04/h7RHRSUPPRESSION POOLSPRAYPUMPSUCTIONPI-E11-1R002COUTOFTOLFOUNDDURINGPM01850-01, INSTRUMENT ISUSEDDURINGTECHSPEC4.0.6PUMPTESTING.INSTRUMENT,WAS REPLACED6SO-149-002WASPERFORMED WITHRESULTSSAT.CLOSED:RHR'SHUTOFF VALVE.1FONBBWOULb'NOTSTROKEOPEN~f/DURINGATTEMPTTOINITIATESUPPRESSION POOLCOOLING.'j  


PMI5:4910/02/95SUSQUENASESSOORSUMMARYREPORTFORSYS49UNIT0/1SORTEDBYUNIT~ISSUEDATE&SOORNPMISPAGE5SYSSOORNOCCURDATEDESCRIPTION4987-0084987-0141/08/871/13/87AHIGHERSETOFTHERMALOVERLOADSWEREINSTALLEDVIASETPOINTCHANGE.MASTERSOORFOR1-87-008.WAS73379IUSPECTEDVALVEWITHOUTANYPROBLEMSFOUND.CLOSEDRHRF0288VALVETHERMALSTRIPPINGDURINGSUPPPOOLCOOLINGATTEMPTS.REFMASTERSOOR1-87-004.CLOSEDRHRMINFLOWCHECKVLVS161F046A-DFAILEDSO-149-002DUETOLACKOFINSTALLFDINDICATIONONFLOWPATHPCAF1-87-0049ISSUEDFORSO-149-002TOCLARIFYINSTRUCTIONTOTESTCHECKVALVE.PCAF2870064ISSUEDFORSO"249-002.CLOSED4987-0754987-100~<<49<<g~j87-,144<<ij=.t&a,~.,"w'Wn:~%)~..49<>~a187~46.3'~3/15/87RHRSUPPRESSIONPOOLCOOLINGVALVE1F0248FAILEDTOFULLYCLOSF.SYSTEMWASSECUREDBYCLOSINGTHE1F0288ISOLATIONVALVEVALVE1F0248TORQUESWITCHSETTINGWASINCREASEDWHICHALLOWEDVALVETOFULLYCLOSEAGAINSTSYSTEMDP.EWRM60727WILLDETERMINEIF,ALARGERMOTOR/ACTUATORSHOULDBEINSTALLED.REF.EWRMIS86-727ANDEWRM71191(KENANDERSON)WA570503RAISEDTHETORQUESETTINGFROM21/4TO31/4ANDTHEPROBLEMHASNOTRE-OCCURRED..CLOSED4/07/87RHRHV151-F0288WASFOUNDTOHAVEABONNETLEAKFOLLOWINGSE-159-076.DUETOMISALIGNMENTOFTHEBONNETWHENINSTALLEDONTHEVALVE60DY.VALVEWASREPAIREDANDPROPERLYALIGNED.INVOLVEDPERSONNELRECEIVEDTRAININGTOPREVENTRECURRENCE.CLOSED4'l?5/26/87RHRHV-151-F028AWOULDNOTOPEN,ELECTRICALLY:.DURINQ~VAIVE~(ZINEUPfj.TOINITIATE.SU)PRESSION'POOL<<:COOL'ING."THERMALOVERLDADS'WERE*FOUND.rTRIPPBO'!c'PCA'F(87.0500ISSUEDTOPREVENTRECURRENCE~REF.BOOR1-87-153CLOSED~C~6/11/87RHRF028AVALVEFAILEDTOOPENDURINGSUPPRESSIONPOOL~~gM4COOLINGVALVEALIGNMENT.WAS70085,S70633&695INVESTIGATEDf/WITHNOPROBLEMSFOUND.PCAF<<1-87-0500&EWRM79227ISSUED.REF.MASTERSOOR1-87"209.CLOSED49"'.87206..~4987-209OTHERAFFECTEDSYS:4987-2484987-2528/03/878/04/879/13/879/17/87RHRHV151F015AWOULDNOTOPENELECTRICALLYORMANUALLYWAS7480214(VESTIGATEDWITHNOABNORMALITIESFOUND.ADEADMANSWITCHWASINSTALLEDANDTHEVALVEWASSTROKEDSEVERALTIMESWITHNOBINDINGORMISALIGNMENTOBSERVED.THERMALBINDINGISTHEAPPARENTCAUSE.WA563756INSPECTEDDURING3RFIO.F015APERFORMEDSATDURINGSE-149-001.CLOSEDRHRHV1F0288FAILEDTOOPEN,BKRTHERMALOVERLOADSTRIPPEDPFR'5SUBMITTEDTOINSTALLLARGERVLVOPERATORMOTORS.OP-149-005REVISEDASANINTERIMMEASURE.TOALLOWVALVEOPENINGUNDERSTATICCONDITIONS.MASTERBOORFOR1-87-153.N.ACT:MAINT-REPLACERHR28A&BVALVEACTUATORSFORUNIT1&2.MAINT.TOWRITEWA'S.(KVCACTION2/14/89).(NPEISPERFORMINGADESIGNREVIEWOFMOV'S.REFNRCGENERIC'ETTER89-10,RIEE88-0269&0270.CLOSEDTHESTARTINGOF'C'HRPUMPRESULTEDINACONTAINMENTISOLATIONESFACTUATIONWHENTHEF008VALVECLOSED,APPARENTLYDUETOTHEPUMPSWAPBEINGPERFORMEDATAHIGHFLOWCONDITION.PCAF'S1-87-0931&2-87-0275ISSUED.REFWA578192.CLOSEDWIRINGERRORFOUNDONRHRRELAY62AX-20409,TB81-43LINKDIDNOTHAVELEADSLANDEDONBOTHSIDES.INVESTIGATIONBYSTAFFENGINEERINGFOUNDTHATWIRINGISCORRECT.MNTPLANNINGGROUPATTENDEDANOUTSESSION.CLOSED  
PMI5:4910/02/95SUSQUENASESSOORSUMMARYREPORTFORSYS49UNIT0/1SORTEDBYUNIT~ISSUEDATE&SOORNPMISPAGE5SYSSOORNOCCURDATEDESCRIPTION 4987-0084987-0141/08/871/13/87AHIGHERSETOFTHERMALOVERLOADS WEREINSTALLED VIASETPOINTCHANGE.MASTERSOORFOR1-87-008.
WAS73379IUSPECTED VALVEWITHOUTANYPROBLEMSFOUND.CLOSEDRHRF0288VALVETHERMALSTRIPPINGDURINGSUPPPOOLCOOLINGATTEMPTS.
REFMASTERSOOR1-87-004.
CLOSEDRHRMINFLOWCHECKVLVS161F046A-D FAILEDSO-149-002DUETOLACKOFINSTALLFD INDICATION ONFLOWPATHPCAF1-87-0049 ISSUEDFORSO-149-002TOCLARIFYINSTRUCTION TOTESTCHECKVALVE.PCAF2870064ISSUEDFORSO"249-002.
CLOSED4987-0754987-100~<<49<<g~j87-,144<<ij=.
t&a,~.,"w'Wn:~%)~..49<>~a187~46.3'
~3/15/87RHRSUPPRESSION POOLCOOLINGVALVE1F0248FAILEDTOFULLYCLOSF.SYSTEMWASSECUREDBYCLOSINGTHE1F0288ISOLATION VALVEVALVE1F0248TORQUESWITCHSETTINGWASINCREASED WHICHALLOWEDVALVETOFULLYCLOSEAGAINSTSYSTEMDP.EWRM60727WILLDETERMINE IF,ALARGERMOTOR/ACTUATOR SHOULDBEINSTALLED.
REF.EWRMIS86-727ANDEWRM71191(KENANDERSON)
WA570503RAISEDTHETORQUESETTINGFROM21/4TO31/4ANDTHEPROBLEMHASNOTRE-OCCURRED.
.CLOSED4/07/87RHRHV151-F0288 WASFOUNDTOHAVEABONNETLEAKFOLLOWING SE-159-076.
DUETOMISALIGNMENT OFTHEBONNETWHENINSTALLED ONTHEVALVE60DY.VALVEWASREPAIREDANDPROPERLYALIGNED.INVOLVEDPERSONNEL RECEIVEDTRAININGTOPREVENTRECURRENCE.
CLOSED4'l?5/26/87RHRHV-151-F028A WOULDNOTOPEN,ELECTRICALLY:.DURINQ~VAI VE~(ZINEUP fj.TOINITIATE.SU)PRESSION'POOL<<:
COOL'ING.
"THERMALOVERLDADS
'WERE*FOUND.rTRIPPBO'!c'PCA'F (87.0500ISSUEDTOPREVENTRECURRENCE
~REF.BOOR1-87-153CLOSED~C~6/11/87RHRF028AVALVEFAILEDTOOPENDURINGSUPPRESSION POOL~~gM4COOLINGVALVEALIGNMENT.
WAS70085,S70633&695INVESTIGATED f/WITHNOPROBLEMSFOUND.PCAF<<1-87-0500
&EWRM79227ISSUED.REF.MASTERSOOR1-87"209.
CLOSED49"'.87206..~4987-209OTHERAFFECTEDSYS:4987-2484987-2528/03/878/04/879/13/879/17/87RHRHV151F015A WOULDNOTOPENELECTRICALLY ORMANUALLYWAS7480214(VESTIGATED WITHNOABNORMALITIES FOUND.ADEADMANSWITCHWASINSTALLED ANDTHEVALVEWASSTROKEDSEVERALTIMESWITHNOBINDINGORMISALIGNMENT OBSERVED.
THERMALBINDINGISTHEAPPARENTCAUSE.WA563756INSPECTED DURING3RFIO.F015APERFORMED SATDURINGSE-149-001.
CLOSEDRHRHV1F0288FAILEDTOOPEN,BKRTHERMALOVERLOADS TRIPPEDPFR'5SUBMITTED TOINSTALLLARGERVLVOPERATORMOTORS.OP-149-005 REVISEDASANINTERIMMEASURE.TOALLOWVALVEOPENINGUNDERSTATICCONDITIONS.
MASTERBOORFOR1-87-153.
N.ACT:MAINT-REPLACERHR28A&BVALVEACTUATORS FORUNIT1&2.MAINT.TOWRITEWA'S.(KVCACTION2/14/89).(NPEISPERFORMING ADESIGNREVIEWOFMOV'S.REFNRCGENERIC'ETTER89-10,RIEE88-0269&0270.CLOSEDTHESTARTINGOF'C'HRPUMPRESULTEDINACONTAINMENT ISOLATION ESFACTUATION WHENTHEF008VALVECLOSED,APPARENTLY DUETOTHEPUMPSWAPBEINGPERFORMED ATAHIGHFLOWCONDITION.
PCAF'S1-87-0931&2-87-0275 ISSUED.REFWA578192.CLOSEDWIRINGERRORFOUNDONRHRRELAY62AX-20409, TB81-43LINKDIDNOTHAVELEADSLANDEDONBOTHSIDES.INVESTIGATION BYSTAFFENGINEERING FOUNDTHATWIRINGISCORRECT.MNTPLANNINGGROUPATTENDEDANOUTSESSION.CLOSED  


PMI5:4910/02/95SUSQUNNASESSOORSUMMARYREPORTFORSYS49-UNIT0/1SORTERBYUNIT,ISSUEDATE&SOORtt'Rth$SSYSBOORNOCCURDATEDESCRIPTION49873174987-3314987-2854987-2944987-.296'987-3054987-3124987-3154987-323OTHERAFFECTEDSYS:58594987-35049A88-00910/09/8710/09/8710/13/8710/16/8710/19/8710/22/8710/27/8710/28/8711/01/8711/17/871/11/88RHRCUTIHPS-831-1N0188SETPOINTWASNOTREPEATABLEDURINGSI-149-304.WA578145REPLACEEDSWITCH.SI-149"304SPCTIQN6.2"WASPERFORMEDSAT.CLOSED'A'HRHEATEXCHANGERSPILLEDWATERDURINGVALVEEXCHANGE.CAUSEDBYHV)1216ALEAKINGBYIT'SSEATANDCHECKVALVE112009NOTCHECKINGREVERSEFLOW.REF.NCR86-0871.SYSKEEPFILLINJECTSHIGHERPRESSUREONTHELOWPRESSURESIDEOFHV11215A,CAUSINGLEAKAGE.CLOSEDINCORRECTRHRVALVEWASDETERMINATEDBYWORKERS,'WAS71080HV161F0288WASDETERMEDRATHERTHANHV-161F028AASSPECIFIEDONTHEWA.CAUSEWASWORKGROUPOVERSIGHT.WORKGROUPREVIEWEDSOOR&SAFETYMEMOAS14.HPES87-016GENERATED.MTGM-060REVISEDANDOJTWASHELD.CLOSEDINCORRECTWIRINGONRHRF008PRESSURESWITCHWASFOUNDDURINGATTEMPTTOINITIATESHUTDOWNCOOLING;WA578196,REWIREDSTATESLINKSTONORMALCONFIG.PS-831-1N0188REPLACEDANDTESTEDPERWAS78146.CLOSEDANOPDRVEXISTEDWHENRHRF004AWASOPENED&F006AMOVREMOVED.INCONJUNCTIONWITHTHEF008&F009VALVESOPEN.THECONDITIONWASRECOGNIZEDBYOPSINATIMELYMANNER&THEF004A&CVAI.VESWEREIMMEDIATELYCLOSED.UNITCOORDINATIONREVIEWEDTHEEVENTANDAD"QA-326REQUIREMENTS.CLOSEDRHRHEATEXCHANGERGASKFTLEAKEDDURINGTP-149-034'YDROOFRHRDIVI.WA573533RETORQUEDTHEFLANGESTUDSANDSUBSEQUENTHYDROTESTEDSAT.CLOSED'A'HRPUMPBREAKERFAILEDTOTRIPDURINGSE-149-001.ADETERMINATEDCABLEWASFOUNDONVALVE151F006A.CAUSEDBYOVERSIGHTOFTHEWORKGROUP.INVOLVEDPERSONNELREVIEWEDAD-QA-500&502ANDMT-GM-050CLPSEDINADVERTANTS/ARTOFRHRPUMP1ADURINGSE-151-001WHEN'-JUMPER=INSTALLEDPERTHETEST"POPPED"OFFANDAPPARENTLYSTRUCTERMINATIONCCC3-15,STARTINGTHEPUMP.INVOLVEDPERgONEL>REVIEWEDTHEEVENT.4CL'0ED'f1AUXBUSPOWERSWITCHINGRESULTEDIN1/2SCRAM&ESFACTUATIONVfHEtt''HERHRSHUTDOWNCOOLINGISOLATIONVALVECLOSED.AITttACFERiOFTHE18250/18260480VACLOADCENTERWILLCAUSEPLOSUEOFHV-151-1F008WHENRPSBUS"8"ISPOWEREDFROMALTRNATESUPPLY,PCAF'S2-87"0318&1-87-1171INITIATEDTOADDTHISPRECAUTION.C)OSED'XRECIRCVLVSHV-143F031A&32ADIDNOTCLOSEUPONRHRDIVIMANUALINITIATIONDURINGPERFORMANCEOFSE-149-001.THISPROBLEMCAUSEDFAILUREOFACCEPTANCECRITERIA.APPARENTCAUSEWAS'UMPERSWEREINSALLEDONINCORRECTTERMINALS.ARETESTWASPERFORMEDSAT.TESTINGGROUPREVIEWEDTHEEVENT.CLOSEDRHRPUMP8SUCTIONGAUGEPI-E11-1R002FOUNDOUTOFTOLERANCEDURINGWA586017ANDWASRECALIBRATED.THISINSTRUMENTISUSEDFORPERFORMANCEOF50-149"002,OPSSTATESALLACCEPTANCECRITERIAWASCOMPLETEDSATON1/16/88.CLOSED PMIS:4910/02/95SUSQUENNASESSOORSUMMARYREPORTFORSYS49-UNIT0/1SORTEDBYUNIT,ISSUEDATEdBOORTTPMISPAGE7SYSBOORTTOCCURDATEDESCRIPTION49A88-139OTHERAFFECTEDSYS:83A4988-1674988-171OTHERAFFECTEDSYST49890074989-0104989-0204989-0464989-098OTHERAFFECTEDSYS:4989-111OTHERAFFECTED'YST12E498911449891344989-1294989-1355/04/886/01/886/02/881/07/891/07/891/13/892/10/893/31/894/06/894/09/894/12/894/16/894/21/89POTENTIALLYREPORTABLECONDITIONRE:SNUBBERFAILURERATEDURINGFUNCTIONALTESTING..LICENSINGEVALUATIONDETERMINEDTHATTHECONDITIONDIDNOTMEETTHEREQUIREMENTOFPART21ORPART50CLOSEDRHRLOOP'A'LOWFT-Ell-1NOTBAFOUNDOUTOFTOLDURINGPM81073THISINSTRUMENTISUSEDDURINGS0-024-007ANDSO-149-002.SO-149-002WASCOMPLETEDSATON7/15/88.TECHEVALUATIONDETERMINEDTHEREWASNOEFFECTONSE-124"107.'LOSEDRHRSHUTDOWNCOOLINGISOLATIONVALVECLOSEDDURINGSYSINITATIONPRESSURETRANSIENTSATPS-831-1NOIBAIShSUSPECTEDCAUSE,REFPMR899059d60.ESFINSTTTTTREFMASTERBOOR1-89-007,PLAS323.CLOSEDRHRFOOBVALVEISOLATEDDURINGSHUTDOWNCOOLING,CPUMPTRIPPEOOPSWALKEDDOWNTHESYSWITHNOAPPARENTDAMAGEFOUND.ENS.OP-149-002REVISEDTOINCORPORATELESSONSLEARNEDINREVIEWOFFILLANDVENTPROCEDURES.PMR899059INSTALLED:ESF.CLOSEDINDICATIONFORRHRCHECKVALVEF0508FAILEDDURINGS0-149-014.EQUALIZINGVALVEF1228DIDNOT.OPEN.'8'OOPOFRHRWASDECLAREDINOP.WAS90048REBUILTTHEVALVEAIRCYLINDER.WhS90050REPLACEDLIMITSWITCHARLlCLOSEDRXLEAKAGEHIGHPRESSUREMONITORFAILEDSI-149-210CRITERIAWAS96106REPLACEDANBROKENTERMINALSCREWINPSH-E11-1N022A.CANCELLEDRHRPERMISSIVEPS-831-1N0188FAILEDTESTINGPERSI-149-204.INVESTIGATIONFOUNDTHATTHESWITCHDIAPHRAMHADFAILEDANDWASREPLACEDPERWA596278.CLOSEDWHILEPLACINGRHRINSHUTDOWNCOOLINGTHE1F007AVALVEOPENED'INFLOWVALVETOTHESUPPRESSIONPOOl,,WHICHCAUSEDRXLEVELTT7DROP5INCHES.REFMASTERSOORI-89-007.INSTllllCLOS/0PRESSIOMPOOLSPRAYSPARGERSWEREPRESSURIZEDBREIFLYLOWING"VALVEMAM1PULATIONSFORLLRT.CONDITION'WASA'f4EARMISSINTHATWORKERWEREPREVIOUSLYINAREAI">"ILO)EDlRHRINBOARDSAMPLEVALVEEll-F079A~FAILEDCLOSEDh>BLOWNFUSE1TAS'OUNDIN1C622,FUSE.821-F19.ESF.ENS.FATIGUE-Of'-')lllg}lPE"ISTHEAPPARENTCAUSE.RHR~HV151F0158WASFOUNDOUT.OFPOSITIONDURINGLLRT,SE-159-032OPS.WAS'SIC/EDOfl;IN~ITSDESIGNATEDPOSITION.CL)SEb;III"l~0'~PSV151-F097DEVELOPEDALEAKDURINGRHRHYDRO,SE-149-311.INVESTIGATIONFOIIMD'GAGONPSV1151-F0558.REFNCR89-0224WHICHADDRESSESTH%POTENTIALFOROVERPRESSURIZATIONOFHB8-120.CLOSEDPRESSUREBOUNDRYVALVEWASSTROKEDDURINGRHR'8'YDROTEST,SE-149311.HV151F1048WASSTROKEDBYOPSFORPOSTMODTESTING.THEDETERMINEDCAUSEWASFAILURETOESTABLISHSTATUSCONTROLOF PMIS:4910/02/95SUSQUNaSESSOORSUMMARYREPORTFORSYS49-UNIT0/1SORTEDBYUNIT,ISSUEDATE6SOORPMI5~~PAGE8SYSSOORNOCCURDATEDESCRIPTION4989-1514989-1574989-17049A89-1834989-1824989-188OTHERAFFECTEDSYS:4989-1954989-261491-89-362OTHERAFFECTEDSYS:491-90-021OTHERAFFECTEDSYS:491-90-075OTHERAFFECTEDSYS:4/28/894/29/896/09/895/14/896/16/895/15/895/21/897/21/8912/04/892/02/903/08/90THEAFFECTEDRHRHYDROVALVES.AD-QA-480WASREVISEDCLOSEDRHRHV161F0158MOTORTERMINATIONISNOTENVIRONMENTALYQUALIFIEDREFNCR89-0293FORCORRECTIVEMEASURES.THECONDITIONWASDETERMINEDTONOTBEREPORTABLE.CLOSEDLEADSHIELDINGONTHERHR508VALVEWASNOTREMOVEDASREQUIREDPRIORTOREFILLINGTHESYSTEMFORSE-149-202.EWRME-9095WASISSUEDTODETERMINETHEEFFECTONTHEPIPING.APIPINGSHEILDINGDATASHEETHASBEENDEVELOPEDBYMAINTP&S.EWRM90529DETERMINEDTHATNOOVERLOADINGOFTHEPIPINGORSUPPORTSOCCURRED.AD-QA-546REV2PROVIDESCONTROLOFLEADLEADSHEILDING.CLOSEDINDICATIONON1C692WASREVERSEDFORXV-15109A68CONDITIONWASNOTEDDURINGSI-199-211ON4-28-89.WA596728CORRECTEDTHEWIRING.CLOSED'O'HRPUMPPI,-E11-1R002CWASFOUNDINDICATIONAVACUUMWITHTHEPUMPOUTOFSERVICE.WA596789REGAL'EDTHEINSTRUMENT.THEASFOUNDCONDITIONWASINTHECONSERVATIVEDIRECTION,NOTAFFECTINGSURVREQUIREMNETS.CLOSEDRHRHV-151-F0248DIDNOTCLOSEONLPCIMANUALINITIATIONDURINGSE-149-002,DUETOCONTACTSONTHEK688RELAYNOTMAKINGUP.WA'S590741,590470,6593981ISSUEDTOMAKEREPAIRS.CLOSEDINCORRECTDIVISIONDESIGNATEDONERF90754FORWA593938THEPLANNERANDSCHEDULERWERECOUNSELEDANDREVIEWEDTHESOOR.UNITCOORDINATIONANDOUTAGEMANAGEMENTSTAFFALSOREVIEWEDTHESOORRE:REVIEWOFERF'S.CLOSEDJUMPERSHORTEDACROSSATERMINALONRELAYK89DURINGSE-159-200RESULTEDINANESFACTUATIONWHENPOWERWASLOSTTOTHEK29RELAYCAUSINGTHERHR1F009VALVETOISOLATEANDTHE'A'UMPTOTRIP.BANANAJACKSWEREINSTALLEDONTERMINATIONSUSEDINSE-159-200.CLOSEDCONDUCTIVITYRECORDERCR12351FORRHRHADAMISSINGCOMPONENT.THECONDITIONWASFOUNDDURINGROUTINEMAINT.THECOMPONENTSWEREINSTALLEDANDTHEINSTRUMENTWASTESTEDSAT.AREVIEWBYCHEMREVEALEDTHATNOTECHSPECLIMITSWEREEXCEEDED.CLSOEDRHRMANUALINJECTIONVALVE151-F060AHADDUALINDICATION.WAISSUEDTOREPAIR.CLOSEDRHRSUCTIONRELIEFVALVESLIFTEDWHILEALIGNINGFORSHUTDOWNCOOLINGPEROP-149-002.THERESULTINGSPILLCONTAMINATEDTHE'A'HRROOM.ATPISBEINGDEVELOPEDTOMONITORSYSPARAMETERSDURINGFILLANDVENTOPERATIONSTOIDWHENTHELIFTOCCURS.REFPMR90-9081AND90-9082WHICHWILLREPLACETYPEOFPSV.REFMASTERSOOR1-90-259.CLOSED'A'HRSYSTEMFLOWFT-E11-1N015AWASFOUNDOUTOFTOLERANCEDURINGACALCHECKANDWASREGAL'EDWITHINFINALTOLERANCE.CLOSED PMIS:E4910/02/95SUSQUENNASESSOORSUMMARYREPORTFORSYS49-UNIT0/1SORTEDBYUNIT,ISSUEDATE6SOORNPMISPAGE9SYSSOORN491-90152OTHERAFFECTEDSYS1491-90-259OTHERAFFECTEDSYS:491-90-267OTHERAFFECTEDSYS:491-90-269OTHERAFFECTEDSYS:491-90-279OTHERAFFECTEDSYSQ491-90-311OTHERAFFECTEDSYS:491-90324OTHERAFFECTEDSYS:491-90-341OTHERAFFECTEDSYS:491-90-366OTHERAFFECTEDSYS:OTHERAFFECTEDSYS:54491-90-245OCCURDATE6/07/909/06/909/13/909/16/909/17/909/21/9010/14/9010/21/9010/31/9011/09/90DESCRIPTIONUNIT1SHUTDOWNDUETOPOTENTIALFAILUREOFRHRMOTORCOOLERS.THISSOORWILLDOCUMENTTHEU-1SHUTDOWN,ACTIONITEMSANDSHUTDOWNREPORT.THEDIRECTCAUSEOFTHERHRPUMPMOTORCOOLINGPROBLEMANDLERSUBMITTALWILLPERPERSUEDVIASOOR2-90-076WHICHIDENTIFIESACOOLERFAILUREONUNIT2.REFSHUTDOWNREPORT1-9002,PLIS36009.CLOSEDHANGERHBB-1104-H15WASFOUNDTOHAVEALOOSEBOLTDURINGISIOFTHERHRSYSTEM.THEHANGERISONTHESUCTIONPIPINGFORTHE'D'HRPUMP.WAS04927MADECORRECTIONS.REFNCR90-0194CLOSED'O'HRPUMPSUCTIONRELIEFVALVE,PSV-151-F030C.LIFTEDANDREMAINEDOPENWHILEPLACINGTHE'A'OOPOFRHRINTOSHUTDOWNCOOLING.UNIT2COMPLETE.RHRPSV151F030A,B,C6DREPLACEDPERWA5134286513429.CLOSEDSNUBBERSPGBB114H2001REMOVALWASSCOPEDININCORRECTDIVISION.THESNUBBERWASACTUALLYINDIVIiRATHERTHANDIVIASINDICATEDON.ERFA93209.WA.Y90358WASCORRECTED.REMAININGWORKDOCUMENTSWEREREVIEWED.EACHSNUBBERCLASSIF,ICATIONWILLBEREVIEWED.CLOSEDSNUBBERGBB-107-H1AMOTIONINHIBITEDBYANINSULATIONBLANKET.REFNCR90-0213WHICHWILLTRACKCORRECTIVEMEASURES.CLOSEDDIV2SNUBBERREMOVEDFORTESTINGWHENDIVWASREQUIRED=.OPERABLESEISDATAWASFOUNDTOBEINCORRECT.THESNUBBERWASREPLACEDWITHANACCEPTABLESPARE.SNUBBERCLASSIFICATIONSWILLBEREVIEWEDANDVALIDATED.MAINTCOMPLETEDhREVIEWOFSNUBBERDATAINSEISFORACCURACY.CLOSEDRHRFLOWVERIFICATIONFAILEO'50-149-002ACCEPTANCECRITERIA.DETERMINEDCAUSEWASTHEINSTRUMENTSENSINGLINEHADNOTBEENBACKFILLEDFOLLOWINGOUTAGEWORK.WA507687CORRECTED.OPSTOREVISEPROCEDURESWHICHCONTAINFILLANDVENTSECTIONSTONOTIFY16CTOFILLINSTRUMENTSENSINGLINES.CLOSED'A'HRPUMPSUCTIONRELIEFPSV-151-F030ALIFTED.WA505278DISASSEMBLEDTHEVALVEANDPERFORMEDINSPECTION.NOCOMPONENTDEFICIENCIESWERENOTED.THEREFORE'HELIFTINGOFTHEPSVISATTRIBUTEDTOOVERPRESSURIZATIONOFTHESYSTEMSCLOSED'8'OOPOFRHRKEEPFILLVALVE151-'F0928WASFOUNDCLOSEDVS:OPEN.INVESTIGATIONCOULDNOTDETERMINEHOWTHEVALVEBECAMECLOSED.OPSPERSONNELWILLHOLDDISCUSSIONSONTHEIMPORTANCEOFTHEEVENTDURINGHOTBOXTRAINING90-66.CLOSEDIPROBLEMSWEREENCOUNTEREDINSTROKETESTINGRHRFOSOA/8CHECKVALVE,DUALINDICATIONWASOBSERVEDWHENSTROKEWASATTEMPTED.DETERMINEDCAUSEWASAIRTRAPPEDUNDERTHECHECKVALVEDISC-CLOSED3 PMI5:E4910/02/95SUSQUEHANNASESSOORSUMMARYREPORTFORSYS49UNIT0/1SORTEDBYUNIT,ISSUEDATE6SOORNPMISPAGE10SYSBOORN491-90-372OTHERAFFECTEDSYS:491-91087OTHERAFFECTEDSYS:491-91-090OTHERAFFECTEDSY~49191-091OTHERAFFECTEDSYS:49191148OTHERAFFECTEDSYS:491-91-170OTHERAFFECTEDSYS:491-91-188OCCURDATE11/13/904/16/914/17/914/18/916/17/917/12/918/01/91DESCRIPTIONERFWASNOTISSUEDTOPERFORMWORKON'A'HRHV-151-F003ACAUSEWASTHEASSISTFOREMANNOTKNOWINGTHEVALVEWASA'STROKETIME'ALVE.OPSWASNOTIFIEDOFTHECONDITIONANDSO149-005WASPERFORMEDTOVERIFYTHESTROKETIMEWASACCEPTABLE.MNTTRAINEDPERSONNELREAD-QA-423REQUIREMENTSANDUPDATEDSEISTOREFLECT-FUNCTIONALTESTINGANDTECHSPECREQ'MNTCLOSEDRHRFS"E111N0218CONTACTSHADHIGHRESISTANCEVALUEWHENTESTEDDURINGSURV.THECONTACTSWEREREPLACEDVIAWAP04886ANDREGAL'ED.REFBOOR1-91-090CLOSEDRHRFS-E11-1N021ASWITCHCONTACTSHAOHIRESISTANCEDURINGCALiTHESWITCHCONTACTSWEREREPLACEDANDCAL'EDPERPMP04885.REFBOOR1-91-087,CLOSED'A'HRLOOPFAILEDITSQUARTERLYFLOWCRITERIAPERS0-149-002DUETOPUMPDISCHARGECHECKVALVENOTCLOSING.THEVALVEWASMANUALLYCLOSEDANDARETESTWASSAT.CLOSEDALARM74RELAYFAILEDFORRHRHV-151-F049RESULTINGINALARM,BURNEDOUTRELAYCOILREPLACED.CLOSED'O'HRPUMPMOTOROVERCURRENTPROTECTIONFOUNDDISCONNECTED.DETERMINEDCAUSEWASPERSONNELERRORINNOTPROPERLYTIGHTENINGASTATESLINKIN1A20402.REF.,WA510696.CLOSEDRXPRESSUREDROPPEDBELOWRHRSHUTDOWNCOOLINGPERMISSIVEWITHOUTONELOOPINOPERATION.THEUNITWASBROUGHTTOASTABLEDEPRESSURIZEDCONDITIONUNTILRWCUCOULDBERESTORED'EFPLAS502.TSATWASINCORP'EDINTOSO-100/200-011REV7.THEUSEOFTSATWASAPPROVEDWITHNRCCLOSUREOF387/89-01-02ININSPECTIONREPORT387/91-18.CLOSED2OTHERAFFECTEDSYS:491912068/15/91OTHERAFFECTEDSYS:~4APlgjl4flIidvvA1tytggrrl).8/1RHR'A'OOPPRESSURIZEDGREATERTHANKEEPFILLPRESSUREONSEVERALOCCASIONS.LEAKAGEINTORHRISLESSTHAN1GPM.MONITORINGOFTHEPRESSURIZATIONRATEHASBEENEXTABLISHEDVIA..-PCAFTO.OP.-149-001ANDTHELOGGINGINTHEPCOLOGBOOK~PENETRATION'TESTINGDURING.6RIODETERMINEDNOSYSDEGREDATIONEXISTS.--CLOSED491-91-291OTHERAFFECTEDSYS:491-92-088OTHERAFFECTEDSYS:491-9209911/08/913/07/923/16/92HV-151-F0288WOULDNOTSTROKEELECTRICALLYFROMCONTROLROOMDETERMINEDCAUSEWASLACKOFLUBRICATIONONTHEVALVESTEMWHICHWASCORRECTED.FURTHERTESTINGPERFORMEDPERWAS00598.CLOSEDRHRPSV-151-F030ALIFTEDWHENS/DCOOLINGHV-151-,F008OPENED.SYSENGCONCLUDEDTHATLONERGANRELIEFVALVES'AREUNRELIABLEANDHASISSUEDRIE90-272TOREPLACETHEMWITHANDERSON-GREENWOODVALVESPERWA513428AND513429.REFSOOR1-90-259WHICHWILLTRACKVALVEREPLACEMENT.CLOSEDSPILL,80SQ.FT,OCCURREDIN.RHRROOMDURINGRHRDRAINPROCESS.BEFACR92-016.DE'1ERMINEDCAUSEWASLACKOFATTENTIONTODETAIL2
PMI5:4910/02/95SUSQUNNASESSOORSUMMARYREPORTFORSYS49-UNIT0/1SORTERBYUNIT,ISSUEDATE&SOORtt'Rth$SSYSBOORNOCCURDATEDESCRIPTION 49873174987-3314987-2854987-2944987-.296'9 87-3054987-3124987-3154987-323OTHERAFFECTEDSYS:58594987-35049A88-00910/09/8710/09/8710/13/8710/16/8710/19/8710/22/8710/27/8710/28/8711/01/8711/17/871/11/88RHRCUTIHPS-831-1N0188 SETPOINTWASNOTREPEATABLE DURINGSI-149-304.
WA578145REPLACEED SWITCH.SI-149"304SPCTIQN6.2"WASPERFORMED SAT.CLOSED'A'HRHEATEXCHANGER SPILLEDWATERDURINGVALVEEXCHANGE.
CAUSEDBYHV)1216ALEAKINGBYIT'SSEATANDCHECKVALVE112009NOTCHECKINGREVERSEFLOW.REF.NCR86-0871.SYSKEEPFILLINJECTSHIGHERPRESSUREONTHELOWPRESSURESIDEOFHV11215A, CAUSINGLEAKAGE.CLOSEDINCORRECT RHRVALVEWASDETERMINATED BYWORKERS,'WA S71080HV161F0288WASDETERMEDRATHERTHANHV-161F028AASSPECIFIED ONTHEWA.CAUSEWASWORKGROUPOVERSIGHT.
WORKGROUPREVIEWEDSOOR&SAFETYMEMOAS14.HPES87-016GENERATED.
MTGM-060REVISEDANDOJTWASHELD.CLOSEDINCORRECT WIRINGONRHRF008PRESSURESWITCHWASFOUNDDURINGATTEMPTTOINITIATESHUTDOWNCOOLING;WA578196,REWIREDSTATESLINKSTONORMALCONFIG.PS-831-1N0188 REPLACEDANDTESTEDPERWAS78146.CLOSEDANOPDRVEXISTEDWHENRHRF004AWASOPENED&F006AMOVREMOVED.INCONJUNCTION WITHTHEF008&F009VALVESOPEN.THECONDITION WASRECOGNIZED BYOPSINATIMELYMANNER&THEF004A&CVAI.VESWEREIMMEDIATELY CLOSED.UNITCOORDINATION REVIEWEDTHEEVENTANDAD"QA-326 REQUIREMENTS.
CLOSEDRHRHEATEXCHANGER GASKFTLEAKEDDURINGTP-149-034
'YDROOFRHRDIVI.WA573533RETORQUED THEFLANGESTUDSANDSUBSEQUENT HYDROTESTEDSAT.CLOSED'A'HRPUMPBREAKERFAILEDTOTRIPDURINGSE-149-001.
ADETERMINATED CABLEWASFOUNDONVALVE151F006A.
CAUSEDBYOVERSIGHT OFTHEWORKGROUP.INVOLVEDPERSONNEL REVIEWEDAD-QA-500
&502ANDMT-GM-050 CLPSEDINADVERTANT S/ARTOFRHRPUMP1ADURINGSE-151-001 WHEN'-JUMPER=INSTALLED PERTHETEST"POPPED"OFFANDAPPARENTLY STRUCTERMINATION CCC3-15,STARTINGTHEPUMP.INVOLVEDPERgONEL>REVIEWED THEEVENT.4CL'0ED'f1AUXBUSPOWERSWITCHING RESULTEDIN1/2SCRAM&ESFACTUATION VfHEtt''HE RHRSHUTDOWNCOOLINGISOLATION VALVECLOSED.AITttACFERiOFTHE18250/18260 480VACLOADCENTERWILLCAUSEPLOSUEOFHV-151-1F008 WHENRPSBUS"8"ISPOWEREDFROMALTRNATESUPPLY,PCAF'S2-87"0318
&1-87-1171 INITIATED TOADDTHISPRECAUTION.
C)OSED'XRECIRCVLVSHV-143F031A&32ADIDNOTCLOSEUPONRHRDIVIMANUALINITIATION DURINGPERFORMANCE OFSE-149-001.
THISPROBLEMCAUSEDFAILUREOFACCEPTANCE CRITERIA.
APPARENTCAUSEWAS'UMPERS WEREINSALLEDONINCORRECT TERMINALS.
ARETESTWASPERFORMED SAT.TESTINGGROUPREVIEWEDTHEEVENT.CLOSEDRHRPUMP8SUCTIONGAUGEPI-E11-1R002 FOUNDOUTOFTOLERANCE DURINGWA586017ANDWASRECALIBRATED.
THISINSTRUMENT ISUSEDFORPERFORMANCE OF50-149"002, OPSSTATESALLACCEPTANCE CRITERIAWASCOMPLETED SATON1/16/88.CLOSED PMIS:4910/02/95SUSQUENNASESSOORSUMMARYREPORTFORSYS49-UNIT0/1SORTEDBYUNIT,ISSUEDATEdBOORTTPMISPAGE7SYSBOORTTOCCURDATEDESCRIPTION 49A88-139OTHERAFFECTEDSYS:83A4988-1674988-171OTHERAFFECTEDSYST49890074989-0104989-0204989-0464989-098OTHERAFFECTEDSYS:4989-111OTHERAFFECTED'YST 12E498911449891344989-1294989-1355/04/886/01/886/02/881/07/891/07/891/13/892/10/893/31/894/06/894/09/894/12/894/16/894/21/89POTENTIALLY REPORTABLE CONDITION RE:SNUBBERFAILURERATEDURINGFUNCTIONAL TESTING..LICENSING EVALUATION DETERMINED THATTHECONDITION DIDNOTMEETTHEREQUIREMENT OFPART21ORPART50CLOSEDRHRLOOP'A'LOWFT-Ell-1NOTBAFOUNDOUTOFTOLDURINGPM81073THISINSTRUMENT ISUSEDDURINGS0-024-007 ANDSO-149-002.SO-149-002 WASCOMPLETED SATON7/15/88.TECHEVALUATION DETERMINED THEREWASNOEFFECTONSE-124"107.'LOSEDRHRSHUTDOWNCOOLINGISOLATION VALVECLOSEDDURINGSYSINITATION PRESSURETRANSIENTS ATPS-831-1NO IBAIShSUSPECTED CAUSE,REFPMR899059d60.ESFINSTTTTTREFMASTERBOOR1-89-007, PLAS323.CLOSEDRHRFOOBVALVEISOLATEDDURINGSHUTDOWNCOOLING,CPUMPTRIPPEOOPSWALKEDDOWNTHESYSWITHNOAPPARENTDAMAGEFOUND.ENS.OP-149-002 REVISEDTOINCORPORATE LESSONSLEARNEDINREVIEWOFFILLANDVENTPROCEDURES.
PMR899059INSTALLED:
ESF.CLOSEDINDICATION FORRHRCHECKVALVEF0508FAILEDDURINGS0-149-014.
EQUALIZING VALVEF1228DIDNOT.OPEN.'8'OOPOFRHRWASDECLAREDINOP.WAS90048REBUILTTHEVALVEAIRCYLINDER.
WhS90050REPLACEDLIMITSWITCHARLlCLOSEDRXLEAKAGEHIGHPRESSUREMONITORFAILEDSI-149-210 CRITERIAWAS96106REPLACEDANBROKENTERMINALSCREWINPSH-E11-1N022A.
CANCELLED RHRPERMISSIVE PS-831-1N0188FAILEDTESTINGPERSI-149-204.INVESTIGATION FOUNDTHATTHESWITCHDIAPHRAMHADFAILEDANDWASREPLACEDPERWA596278.CLOSEDWHILEPLACINGRHRINSHUTDOWNCOOLINGTHE1F007AVALVEOPENED'IN FLOWVALVETOTHESUPPRESSION POOl,,WHICHCAUSEDRXLEVELTT7DROP5INCHES.REFMASTERSOORI-89-007.
INSTllllCLOS/0PRESSIOMPOOLSPRAYSPARGERSWEREPRESSURIZED BREIFLYLOWING"VALVE MAM1PULATIONS FORLLRT.CONDITION
'WASA'f4EARMISSINTHATWORKERWEREPREVIOUSLY INAREAI">"I LO)EDlRHRINBOARDSAMPLEVALVEEll-F079A
~FAILEDCLOSEDh>BLOWNFUSE1TAS'OUND IN1C622,FUSE.821-F19.ESF.ENS.FATIGUE-Of'-')lll g}lPE"ISTHEAPPARENTCAUSE.RHR~HV151F0158 WASFOUNDOUT.OFPOSITIONDURINGLLRT,SE-159-032 OPS.WAS'SIC/EDOfl;IN~ITSDESIGNATED POSITION.
CL)SEb;III"l~0'~PSV151-F097DEVELOPED ALEAKDURINGRHRHYDRO,SE-149-311.
INVESTIGATION FOIIMD'GAGONPSV1151-F0558.
REFNCR89-0224WHICHADDRESSES TH%POTENTIAL FOROVERPRESSURIZATION OFHB8-120.CLOSEDPRESSUREBOUNDRYVALVEWASSTROKEDDURINGRHR'8'YDROTEST,SE-149311.HV151F1048 WASSTROKEDBYOPSFORPOSTMODTESTING.THEDETERMINED CAUSEWASFAILURETOESTABLISH STATUSCONTROLOF PMIS:4910/02/95SUSQUNaSESSOORSUMMARYREPORTFORSYS49-UNIT0/1SORTEDBYUNIT,ISSUEDATE6SOORPMI5~~PAGE8SYSSOORNOCCURDATEDESCRIPTION 4989-1514989-1574989-17049A89-1834989-1824989-188OTHERAFFECTEDSYS:4989-1954989-261491-89-362OTHERAFFECTEDSYS:491-90-021OTHERAFFECTEDSYS:491-90-075OTHERAFFECTEDSYS:4/28/894/29/896/09/895/14/896/16/895/15/895/21/897/21/8912/04/892/02/903/08/90THEAFFECTEDRHRHYDROVALVES.AD-QA-480 WASREVISEDCLOSEDRHRHV161F0158 MOTORTERMINATION ISNOTENVIRONMENTALY QUALIFIED REFNCR89-0293FORCORRECTIVE MEASURES.
THECONDITION WASDETERMINED TONOTBEREPORTABLE.
CLOSEDLEADSHIELDING ONTHERHR508VALVEWASNOTREMOVEDASREQUIREDPRIORTOREFILLING THESYSTEMFORSE-149-202.
EWRME-9095WASISSUEDTODETERMINE THEEFFECTONTHEPIPING.APIPINGSHEILDING DATASHEETHASBEENDEVELOPED BYMAINTP&S.EWRM90529DETERMINED THATNOOVERLOADING OFTHEPIPINGORSUPPORTSOCCURRED.
AD-QA-546 REV2PROVIDESCONTROLOFLEADLEADSHEILDING.
CLOSEDINDICATION ON1C692WASREVERSEDFORXV-15109A 68CONDITION WASNOTEDDURINGSI-199-211 ON4-28-89.WA596728CORRECTED THEWIRING.CLOSED'O'HRPUMPPI,-E11-1R002C WASFOUNDINDICATION AVACUUMWITHTHEPUMPOUTOFSERVICE.WA596789REGAL'EDTHEINSTRUMENT.
THEASFOUNDCONDITION WASINTHECONSERVATIVE DIRECTION, NOTAFFECTING SURVREQUIREMNETS.
CLOSEDRHRHV-151-F0248 DIDNOTCLOSEONLPCIMANUALINITIATION DURINGSE-149-002, DUETOCONTACTSONTHEK688RELAYNOTMAKINGUP.WA'S590741,590470,6593981ISSUEDTOMAKEREPAIRS.CLOSEDINCORRECT DIVISIONDESIGNATED ONERF90754FORWA593938THEPLANNERANDSCHEDULER WERECOUNSELED ANDREVIEWEDTHESOOR.UNITCOORDINATION ANDOUTAGEMANAGEMENT STAFFALSOREVIEWEDTHESOORRE:REVIEWOFERF'S.CLOSEDJUMPERSHORTEDACROSSATERMINALONRELAYK89DURINGSE-159-200RESULTEDINANESFACTUATION WHENPOWERWASLOSTTOTHEK29RELAYCAUSINGTHERHR1F009VALVETOISOLATEANDTHE'A'UMPTOTRIP.BANANAJACKSWEREINSTALLED ONTERMINATIONS USEDINSE-159-200.
CLOSEDCONDUCTIVITY RECORDERCR12351FORRHRHADAMISSINGCOMPONENT.
THECONDITION WASFOUNDDURINGROUTINEMAINT.THECOMPONENTS WEREINSTALLED ANDTHEINSTRUMENT WASTESTEDSAT.AREVIEWBYCHEMREVEALEDTHATNOTECHSPECLIMITSWEREEXCEEDED.
CLSOEDRHRMANUALINJECTION VALVE151-F060A HADDUALINDICATION.
WAISSUEDTOREPAIR.CLOSEDRHRSUCTIONRELIEFVALVESLIFTEDWHILEALIGNINGFORSHUTDOWNCOOLINGPEROP-149-002.
THERESULTING SPILLCONTAMINATED THE'A'HRROOM.ATPISBEINGDEVELOPED TOMONITORSYSPARAMETERS DURINGFILLANDVENTOPERATIONS TOIDWHENTHELIFTOCCURS.REFPMR90-9081AND90-9082WHICHWILLREPLACETYPEOFPSV.REFMASTERSOOR1-90-259.
CLOSED'A'HRSYSTEMFLOWFT-E11-1N015AWASFOUNDOUTOFTOLERANCE DURINGACALCHECKANDWASREGAL'EDWITHINFINALTOLERANCE.
CLOSED PMIS:E4910/02/95SUSQUENNASESSOORSUMMARYREPORTFORSYS49-UNIT0/1SORTEDBYUNIT,ISSUEDATE6SOORNPMISPAGE9SYSSOORN491-90152OTHERAFFECTEDSYS1491-90-259OTHERAFFECTEDSYS:491-90-267OTHERAFFECTEDSYS:491-90-269OTHERAFFECTEDSYS:491-90-279OTHERAFFECTEDSYSQ491-90-311OTHERAFFECTEDSYS:491-90324OTHERAFFECTEDSYS:491-90-341OTHERAFFECTEDSYS:491-90-366OTHERAFFECTEDSYS:OTHERAFFECTEDSYS:54491-90-245OCCURDATE6/07/909/06/909/13/909/16/909/17/909/21/9010/14/9010/21/9010/31/9011/09/90DESCRIPTION UNIT1SHUTDOWNDUETOPOTENTIAL FAILUREOFRHRMOTORCOOLERS.THISSOORWILLDOCUMENTTHEU-1SHUTDOWN, ACTIONITEMSANDSHUTDOWNREPORT.THEDIRECTCAUSEOFTHERHRPUMPMOTORCOOLINGPROBLEMANDLERSUBMITTAL WILLPERPERSUEDVIASOOR2-90-076WHICHIDENTIFIES ACOOLERFAILUREONUNIT2.REFSHUTDOWNREPORT1-9002,PLIS36009.CLOSEDHANGERHBB-1104-H15WASFOUNDTOHAVEALOOSEBOLTDURINGISIOFTHERHRSYSTEM.THEHANGERISONTHESUCTIONPIPINGFORTHE'D'HRPUMP.WAS04927MADECORRECTIONS.
REFNCR90-0194CLOSED'O'HRPUMPSUCTIONRELIEFVALVE,PSV-151-F030C.
LIFTEDANDREMAINEDOPENWHILEPLACINGTHE'A'OOPOFRHRINTOSHUTDOWNCOOLING.UNIT2COMPLETE.
RHRPSV151F030A,B,C6D REPLACEDPERWA5134286513429.CLOSEDSNUBBERSPGBB114H2001REMOVALWASSCOPEDININCORRECT DIVISION.
THESNUBBERWASACTUALLYINDIVIiRATHERTHANDIVIASINDICATED ON.ERFA93209.WA.Y90358 WASCORRECTED.
REMAINING WORKDOCUMENTS WEREREVIEWED.
EACHSNUBBERCLASSIF,ICATION WILLBEREVIEWED.
CLOSEDSNUBBERGBB-107-H1A MOTIONINHIBITED BYANINSULATION BLANKET.REFNCR90-0213WHICHWILLTRACKCORRECTIVE MEASURES.
CLOSEDDIV2SNUBBERREMOVEDFORTESTINGWHENDIVWASREQUIRED=.OPERABLE SEISDATAWASFOUNDTOBEINCORRECT.
THESNUBBERWASREPLACEDWITHANACCEPTABLE SPARE.SNUBBERCLASSIFICATIONS WILLBEREVIEWEDANDVALIDATED.
MAINTCOMPLETED hREVIEWOFSNUBBERDATAINSEISFORACCURACY.
CLOSEDRHRFLOWVERIFICATION FAILEO'50-149-002 ACCEPTANCE CRITERIA.
DETERMINED CAUSEWASTHEINSTRUMENT SENSINGLINEHADNOTBEENBACKFILLED FOLLOWING OUTAGEWORK.WA507687CORRECTED.
OPSTOREVISEPROCEDURES WHICHCONTAINFILLANDVENTSECTIONSTONOTIFY16CTOFILLINSTRUMENT SENSINGLINES.CLOSED'A'HRPUMPSUCTIONRELIEFPSV-151-F030A LIFTED.WA505278DISASSEMBLED THEVALVEANDPERFORMED INSPECTION.
NOCOMPONENT DEFICIENCIES WERENOTED.THEREFORE'HE LIFTINGOFTHEPSVISATTRIBUTED TOOVERPRESSURIZATION OFTHESYSTEMSCLOSED'8'OOPOFRHRKEEPFILLVALVE151-'F0928 WASFOUNDCLOSEDVS:OPEN.INVESTIGATION COULDNOTDETERMINE HOWTHEVALVEBECAMECLOSED.OPSPERSONNEL WILLHOLDDISCUSSIONS ONTHEIMPORTANCE OFTHEEVENTDURINGHOTBOXTRAINING90-66.CLOSEDIPROBLEMSWEREENCOUNTERED INSTROKETESTINGRHRFOSOA/8CHECKVALVE,DUALINDICATION WASOBSERVEDWHENSTROKEWASATTEMPTED.
DETERMINED CAUSEWASAIRTRAPPEDUNDERTHECHECKVALVEDISC-CLOSED3 PMI5:E4910/02/95SUSQUEHANNA SESSOORSUMMARYREPORTFORSYS49UNIT0/1SORTEDBYUNIT,ISSUEDATE6SOORNPMISPAGE10SYSBOORN491-90-372OTHERAFFECTEDSYS:491-91087OTHERAFFECTEDSYS:491-91-090OTHERAFFECTEDSY~49191-091OTHERAFFECTEDSYS:49191148OTHERAFFECTEDSYS:491-91-170OTHERAFFECTEDSYS:491-91-188OCCURDATE11/13/904/16/914/17/914/18/916/17/917/12/918/01/91DESCRIPTION ERFWASNOTISSUEDTOPERFORMWORKON'A'HRHV-151-F003A CAUSEWASTHEASSISTFOREMANNOTKNOWINGTHEVALVEWASA'STROKETIME'ALVE.
OPSWASNOTIFIEDOFTHECONDITION ANDSO149-005WASPERFORMED TOVERIFYTHESTROKETIMEWASACCEPTABLE.
MNTTRAINEDPERSONNEL READ-QA-423 REQUIREMENTS ANDUPDATEDSEISTOREFLECT-FUNCTIONAL TESTINGANDTECHSPECREQ'MNTCLOSEDRHRFS"E111N0218CONTACTSHADHIGHRESISTANCE VALUEWHENTESTEDDURINGSURV.THECONTACTSWEREREPLACEDVIAWAP04886ANDREGAL'ED.
REFBOOR1-91-090CLOSEDRHRFS-E11-1N021A SWITCHCONTACTSHAOHIRESISTANCE DURINGCALiTHESWITCHCONTACTSWEREREPLACEDANDCAL'EDPERPMP04885.REFBOOR1-91-087,CLOSED'A'HRLOOPFAILED ITSQUARTERLY FLOWCRITERIAPERS0-149-002 DUETOPUMPDISCHARGE CHECKVALVENOTCLOSING.THEVALVEWASMANUALLYCLOSEDANDARETESTWASSAT.CLOSEDALARM74RELAYFAILEDFORRHRHV-151-F049 RESULTING INALARM,BURNEDOUTRELAYCOILREPLACED.
CLOSED'O'HRPUMPMOTOROVERCURRENT PROTECTION FOUNDDISCONNECTED.
DETERMINED CAUSEWASPERSONNEL ERRORINNOTPROPERLYTIGHTENING ASTATESLINKIN1A20402.REF.,WA510696.CLOSEDRXPRESSUREDROPPEDBELOWRHRSHUTDOWNCOOLINGPERMISSIVE WITHOUTONELOOPINOPERATION.
THEUNITWASBROUGHTTOASTABLEDEPRESSURIZED CONDITION UNTILRWCUCOULDBERESTORED'EF PLAS502.TSATWASINCORP'ED INTOSO-100/200-011 REV7.THEUSEOFTSATWASAPPROVEDWITHNRCCLOSUREOF387/89-01-02 ININSPECTION REPORT387/91-18.
CLOSED2OTHERAFFECTEDSYS:491912068/15/91OTHERAFFECTEDSYS:~4APlgjl4flIidvvA1tytggrrl).8/1RHR'A'OOPPRESSURIZED GREATERTHANKEEPFILLPRESSUREONSEVERALOCCASIONS.
LEAKAGEINTORHRISLESSTHAN1GPM.MONITORING OFTHEPRESSURIZATION RATEHASBEENEXTABLISHED VIA..-PCAFTO.OP.-149-001 ANDTHELOGGINGINTHEPCOLOGBOOK~PENETRATION
'TESTINGDURING.6RIO DETERMINED NOSYSDEGREDATION EXISTS.--
CLOSED491-91-291OTHERAFFECTEDSYS:491-92-088OTHERAFFECTEDSYS:491-9209911/08/913/07/923/16/92HV-151-F0288 WOULDNOTSTROKEELECTRICALLY FROMCONTROLROOMDETERMINED CAUSEWASLACKOFLUBRICATION ONTHEVALVESTEMWHICHWASCORRECTED.
FURTHERTESTINGPERFORMED PERWAS00598.CLOSEDRHRPSV-151-F030A LIFTEDWHENS/DCOOLINGHV-151-,F008 OPENED.SYSENGCONCLUDED THATLONERGANRELIEFVALVES'ARE UNRELIABLE ANDHASISSUEDRIE90-272TOREPLACETHEMWITHANDERSON-GREENWOOD VALVESPERWA513428AND513429.REFSOOR1-90-259WHICHWILLTRACKVALVEREPLACEMENT.
CLOSEDSPILL,80SQ.FT,OCCURREDIN.RHRROOMDURINGRHRDRAINPROCESS.BEFACR92-016.DE'1ERMINED CAUSEWASLACKOFATTENTION TODETAIL2


PMIS.4910/02/95SUSQUANNASESSOORSUMMARYREPORTFORSYS49-UNIT0/1SORTEDBYUNIT~ISSUEDATE6SOORNPMISSYSSOORNOCCURDATEDESCRIPTIONOTHERAFFECTEDSYS:49192-107OTHERAFFECTEDSYS:61.491-92"134OTHERAFFECTEDSYS:491-92-139OTHERAFFECTEDSYS:491-92-148OTHERAFFECTEDSYS:491-92-165OTHERAFFECTEDSYS:491-92-268OTHERAFFECTEDSYS:491-92-302OTHERAFFECTEDSYS:49192311OTHERAFFECTEDSYS:49A1-92-336OTHERAFFECTEDSYS:3/20/924/03/924/03/924/10/924/23/927/21/928/24/929/12/9'210/13/92ANDANONQUESTIONINGATTITUDE.INVOLVEDOPSPERSONNELWERECOUNSELEDONTHEEVENT.CLOSEDBKR18216114,18226062818216053ARENOTEQ~REFNCR92-049.ERF'SANDWAWRITTEN.THEBREAKERSWEREREPLACED.EQAR-023ANDEQDF-48ISBEINGREVISETOSPECIFYTHEREQUIREDSUPPLIEROFWESTINGHOUSEMOLDEDCASECIRCUITBREAKERS.CLOSEDRHRF009CLOSEDONSPURIOUSSIGNALWHILEFILLINGSYSTEM.THE.ACTUATINGPRESSURESWITCHESWEREISOLATEDANDTHEVALVERECLOSED.DETERMINEDCAUSEWASTHEPROCEDURESTEPSWEREPERFORMEDOUTOFSEQUENCENOTSTEPBYSTEPSTRAININGWASCONDUCTEDRE:REQOFNDAP-QA-400,PCAF'SISSUEDTOASSOCIATEDSE'SADDINGACAUTIONSTATEMENT.CLOSEDPERMIT1-92-2004DIDN'7PROVIDEPROTECTIONFORWA513999-THEWORKSHOULDHAVEBEENSIGNEDONPERMIT192-2882.DETERMINEDCAUSEWASLACKOFATTENTIONTODETAIL..ALLE*SPERSONNELWILLREVIEWTHEEVENT.~MAINTREVIEWEDTHISEVENTWITHE65PERSONNEL.CLOSEDRHRSHUTDOWNCOOLINGSUCTIONRELEIFVLVPSV-151-F029LIFTEDWHENKEEPFILLWASOPENEDTOTHERHRSYSTEMFORFILLING.WA523703INVESTIGATEDANDDETERMINEDTHEPSVASFOUNDLIFTPRESSURETOBELOWERTHANREQUIREDSETPOINT.CLOSEDRXCOOLANTSAMPLESWERENOTREPRESENTATIVEOFACTUALCOOLANTASREQUIREDBYTECHSPEC'5DURINGTHEPERIODOF4/20THRU4/23.THESAMPLEWASTAKENFROMSTAGNENTWATERINTHEHEATEXCHANGERDUETOBYPASSBEINGOPEN.CHEMREVISEOSC-176/276-101AND106TOENSURERHRHXINSERVICEPRIORTOOBTAININGSAMPLE.CLOSEDRHRPUMPPI-E11-1R002CFOUNDOUT'FTOLERANCE.THEINDICATORWASCALIBRATEDANDFINALDATAWASWITHINFINALTOLERANCE.CLOSEDUSERCONTROLLEDPROCEDUREISSUEDWITHANON-EFFECTIVEPCAF,50-149-005WITHPCAF1-92-0237WHICHHADBEENPREVIOUSLYDELETEDBYPCAF1-92-0254.DETERMINEDCAUSEWASPERSONNELERRORBYTHECLERKISSUINGTHEPROCEDURE.HANDWRITTENNOTEWASUSEDINSTEADOFACOMPUTER.GENERATEDTRANSMITTAL.THEPROCEDUREMASTERFILEHASBEENINCLUDEDINTOSPMSASADISTRIBUTIONLOCATION.INVOLVEDPERSONNELWEREINSTRUCTEOONPROPERPROCESS.CLOSEDPSH-Et1-1N018FOUNDISOLATEDDURINGPERFORMANCEOFSI-149-209.INVESTIGATIONBYASTATUSCONTROLTEAMCOULDNOTDETERMINEACAUSE.CLOSEDRHRSYSLEAKAGEPSH-Ett-1N0228HOUSINGSEALFOUNDDAMAGEDDURINGSI"149-210.CALCHECKWASSAT.WA527483ISSUEDTOREPLACETHESWITCH,CLOSED  
PMIS.4910/02/95SUSQUANNASESSOORSUMMARYREPORTFORSYS49-UNIT0/1SORTEDBYUNIT~ISSUEDATE6SOORNPMISSYSSOORNOCCURDATEDESCRIPTION OTHERAFFECTEDSYS:49192-107OTHERAFFECTEDSYS:61.491-92"134OTHERAFFECTEDSYS:491-92-139OTHERAFFECTEDSYS:491-92-148OTHERAFFECTEDSYS:491-92-165OTHERAFFECTEDSYS:491-92-268OTHERAFFECTEDSYS:491-92-302OTHERAFFECTEDSYS:49192311OTHERAFFECTEDSYS:49A1-92-336OTHERAFFECTEDSYS:3/20/924/03/924/03/924/10/924/23/927/21/928/24/929/12/9'210/13/92ANDANONQUESTIONING ATTITUDE.
INVOLVEDOPSPERSONNEL WERECOUNSELED ONTHEEVENT.CLOSEDBKR18216114, 18226062818216053ARENOTEQ~REFNCR92-049.ERF'SANDWAWRITTEN.THEBREAKERSWEREREPLACED.
EQAR-023ANDEQDF-48ISBEINGREVISETOSPECIFYTHEREQUIREDSUPPLIEROFWESTINGHOUSE MOLDEDCASECIRCUITBREAKERS.
CLOSEDRHRF009CLOSEDONSPURIOUSSIGNALWHILEFILLINGSYSTEM.THE.ACTUATING PRESSURESWITCHESWEREISOLATEDANDTHEVALVERECLOSED.
DETERMINED CAUSEWASTHEPROCEDURE STEPSWEREPERFORMED OUTOFSEQUENCENOTSTEPBYSTEPSTRAININGWASCONDUCTED RE:REQOFNDAP-QA-400, PCAF'SISSUEDTOASSOCIATED SE'SADDINGACAUTIONSTATEMENT.
CLOSEDPERMIT1-92-2004 DIDN'7PROVIDEPROTECTION FORWA513999-THEWORKSHOULDHAVEBEENSIGNEDONPERMIT192-2882.DETERMINED CAUSEWASLACKOFATTENTION TODETAIL..ALL E*SPERSONNEL WILLREVIEWTHEEVENT.~MAINTREVIEWEDTHISEVENTWITHE65PERSONNEL.
CLOSEDRHRSHUTDOWNCOOLINGSUCTIONRELEIFVLVPSV-151-F029 LIFTEDWHENKEEPFILLWASOPENEDTOTHERHRSYSTEMFORFILLING.WA523703INVESTIGATED ANDDETERMINED THEPSVASFOUNDLIFTPRESSURETOBELOWERTHANREQUIREDSETPOINT.
CLOSEDRXCOOLANTSAMPLESWERENOTREPRESENTATIVE OFACTUALCOOLANTASREQUIREDBYTECHSPEC'5DURINGTHEPERIODOF4/20THRU4/23.THESAMPLEWASTAKENFROMSTAGNENTWATERINTHEHEATEXCHANGER DUETOBYPASSBEINGOPEN.CHEMREVISEOSC-176/276-101 AND106TOENSURERHRHXINSERVICEPRIORTOOBTAINING SAMPLE.CLOSEDRHRPUMPPI-E11-1R002C FOUNDOUT'FTOLERANCE.
THEINDICATOR WASCALIBRATED ANDFINALDATAWASWITHINFINALTOLERANCE.
CLOSEDUSERCONTROLLED PROCEDURE ISSUEDWITHANON-EFFECTIVE PCAF,50-149-005 WITHPCAF1-92-0237 WHICHHADBEENPREVIOUSLY DELETEDBYPCAF1-92-0254.
DETERMINED CAUSEWASPERSONNEL ERRORBYTHECLERKISSUINGTHEPROCEDURE.
HANDWRITTENNOTEWASUSEDINSTEADOFACOMPUTER.
GENERATED TRANSMITTAL.
THEPROCEDURE MASTERFILEHASBEENINCLUDEDINTOSPMSASADISTRIBUTION LOCATION.
INVOLVEDPERSONNEL WEREINSTRUCTEO ONPROPERPROCESS.CLOSEDPSH-Et1-1N018FOUNDISOLATEDDURINGPERFORMANCE OFSI-149-209.
INVESTIGATION BYASTATUSCONTROLTEAMCOULDNOTDETERMINE ACAUSE.CLOSEDRHRSYSLEAKAGEPSH-Ett-1N0228 HOUSINGSEALFOUNDDAMAGEDDURINGSI"149-210.
CALCHECKWASSAT.WA527483ISSUEDTOREPLACETHESWITCH,CLOSED  


PMIS:EVR4910/02/95SUSQUEHANNASESSOORSUMMARYREPORTFORSYS49-UNIT0/1SORTEDBYUNIT~ISSUEDATE5SOORNPMISPAGE12SYSSOORNOCCURDATEDESCRIPTION4993-338OTHERAFFECTEDSYS:514993-341OTHERAFFECTEDSYS:4993-377OTHERAFFECTEDSYS:4994-034OTHERAFFECTEDSYQ,:496,94035OTHERAFFECTEDSYS:4994-059OTHERAFFECTEDSYS:4994-180OTHERAFFECTEDSYS:804994-580OTHERAFFECTEDSYS:10/17/9310/25/9311/13/931/11/941/11/941/18/943/16/9411/29/94CHAINHOISTWASFOUNDHANGINGFROMACONDUITUNISTRUTSUPPORTINTHE705'QUIPMENTSPACE.INVESTIGATIONDETERMINEDTHEHOISTWASPLACETHEREBYCONTRACTORPERSONNEL.THECONTRACTORSUPERVISORWASGIVENA=-DETAILEDREVIEWOFSTATIONRIGGINGPRACTICES.AVISUALINSPECTIONOFTHESUPPORTBYISIPERSONNELDIDNOTREVEALANYDAMAGE.EWRM30719DOCUMENTSTHEEVALUATION.CLOSEDRHRSDCSAMPLEVLVFOBOAAUTOCLOSEDDURINGMT-159-004.COMMUNICATIONSBETWEENTHETESTDIRECTORANDTHEUNITSUPVFAILEDTOINITIATEACTIONTOCLOSETHEVALVEPRIORTOTESTCOMMENCEMENT.DETERMINEDCAUSEWASLESSTHANADEQUATECOMMUNICATION.MT-159-004WASREVISED.CLOSEDRHRDISCHARGECHECKVALVE,1F031A~DIDNOTSEATWHICHPREVENTEDTHE'A'OOPOFRHRFROMMAINTAININGADEQUATEKEEP-FILLPRESSURE.INVESTIGATIONFOUNDTHATTHEVALVEDISKHANANINTERFERENCEWITHA'CASTINGBUMP'NTHEVALVEBODY.DCP93-3093A'68AND93-3092A58AREPLANNED.REFEWRM30762ANDDCN93-1658RE:ADDITIONOFASPACERONTHEDISKSHAFT.CLOSEDRHRSDCOOLINGSUCTIONLINEINOPDUETOF008VLVPACKINGLEAK.THEPACKINGONHV-151-F008WASRETORQUEO..CLOSEDRHRHV-151-F0248WOULDNOTFULLYCLOSEDURINGTP"149-054.THEVALVEWASREBUILTANDTESTEDPRIORTOSTARTUP-SEVEREWEAROFTHEANT.I-ROTATIONGUIDERIBISTHEPROBABLECAUSE'AINTTECHNOLOGYWILLPROVIDERECOMMENDATIONSFOLLOWINGAREVIEWREFMEMOVLV-622.RE:LOADSENSITIVEBEHAVIOROFMOV'S.CI.OSEDHV151F017AMODIFIEDVIADCP93-9068AACTUATORSWITCHESNOTSETUPAFTERTHEMODWASPERFORMED.WHENVOTESTESTEDTHEVALVEMOTOREDONTOTHEBACKSEAT.DETERMINEDCAUSEWASOMMISIONOFAPROCEDURESTEPBYTHEWORKCREW.THEFOREMANANDWORKCREWWERECOUNSELEDONTHEEVENT.NONROUTINETRAININGISPLANNED.MAINT/EASELECTRICIANSWHOAREMOVQUALIFIEDREVIEWEDTHEEVENT.CLOSED'8'OOPOFLPCIINOP,PIS-821-1N021DOUTOFTOLERANCE.CONDITIONFOUNDDURINGSI-180-301.THESWITCHWASCALIBRATEDTOWITHINTOLERANCEPERTHESURVANDTHELCOWASCLEARED.CLOSED'8'HRPPSUCTIONVLVTHERMALOVERLOADJUMPERLOOSE.18226013.THEF0048VALVEWASCLOSED'HEJUMPERCORRECTED'NDTHEVALVEWASRE-OPENED.CLOSEDTOTAL:119  
PMIS:EVR49 10/02/95SUSQUEHANNA SESSOORSUMMARYREPORTFORSYS49-UNIT0/1SORTEDBYUNIT~ISSUEDATE5SOORNPMISPAGE12SYSSOORNOCCURDATEDESCRIPTION 4993-338OTHERAFFECTEDSYS:514993-341OTHERAFFECTEDSYS:4993-377OTHERAFFECTEDSYS:4994-034OTHERAFFECTEDSYQ,:496,94035OTHERAFFECTEDSYS:4994-059OTHERAFFECTEDSYS:4994-180OTHERAFFECTEDSYS:804994-580OTHERAFFECTEDSYS:10/17/9310/25/9311/13/931/11/941/11/941/18/943/16/9411/29/94CHAINHOISTWASFOUNDHANGINGFROMACONDUITUNISTRUTSUPPORTINTHE705'QUIPMENT SPACE.INVESTIGATION DETERMINED THEHOISTWASPLACETHEREBYCONTRACTOR PERSONNEL.
THECONTRACTOR SUPERVISOR WASGIVENA=-DETAILEDREVIEWOFSTATIONRIGGINGPRACTICES.
AVISUALINSPECTION OFTHESUPPORTBYISIPERSONNEL DIDNOTREVEALANYDAMAGE.EWRM30719DOCUMENTS THEEVALUATION.
CLOSEDRHRSDCSAMPLEVLVFOBOAAUTOCLOSEDDURINGMT-159-004.
COMMUNICATIONS BETWEENTHETESTDIRECTORANDTHEUNITSUPVFAILEDTOINITIATEACTIONTOCLOSETHEVALVEPRIORTOTESTCOMMENCEMENT.
DETERMINED CAUSEWASLESSTHANADEQUATECOMMUNICATION.
MT-159-004 WASREVISED.CLOSEDRHRDISCHARGE CHECKVALVE,1F031A~DIDNOTSEATWHICHPREVENTED THE'A'OOPOFRHRFROMMAINTAINING ADEQUATEKEEP-FILL PRESSURE.
INVESTIGATION FOUNDTHATTHEVALVEDISKHANANINTERFERENCE WITHA'CASTINGBUMP'NTHEVALVEBODY.DCP93-3093A'68AND93-3092A58AREPLANNED.REFEWRM30762ANDDCN93-1658RE:ADDITIONOFASPACERONTHEDISKSHAFT.CLOSEDRHRSDCOOLINGSUCTIONLINEINOPDUETOF008VLVPACKINGLEAK.THEPACKINGONHV-151-F008 WASRETORQUEO.
.CLOSEDRHRHV-151-F0248 WOULDNOTFULLYCLOSEDURINGTP"149-054.THEVALVEWASREBUILTANDTESTEDPRIORTOSTARTUP-SEVEREWEAROFTHEANT.I-ROTATION GUIDERIBISTHEPROBABLECAUSE'AINTTECHNOLOGY WILLPROVIDERECOMMENDATIONS FOLLOWING AREVIEWREFMEMOVLV-622.RE:
LOADSENSITIVE BEHAVIOROFMOV'S.CI.OSEDHV151F017AMODIFIEDVIADCP93-9068AACTUATORSWITCHESNOTSETUPAFTERTHEMODWASPERFORMED.
WHENVOTESTESTEDTHEVALVEMOTOREDONTOTHEBACKSEAT.
DETERMINED CAUSEWASOMMISIONOFAPROCEDURE STEPBYTHEWORKCREW.THEFOREMANANDWORKCREWWERECOUNSELED ONTHEEVENT.NONROUTINETRAININGISPLANNED.MAINT/EAS ELECTRICIANS WHOAREMOVQUALIFIEDREVIEWED THEEVENT.CLOSED'8'OOPOFLPCIINOP,PIS-821-1N021D OUTOFTOLERANCE.
CONDITION FOUNDDURINGSI-180-301.
THESWITCHWASCALIBRATED TOWITHINTOLERANCE PERTHESURVANDTHELCOWASCLEARED.CLOSED'8'HRPPSUCTIONVLVTHERMALOVERLOADJUMPERLOOSE.18226013.
THEF0048VALVEWASCLOSED'HE JUMPERCORRECTED'ND THEVALVEWASRE-OPENED.
CLOSEDTOTAL:119  


PMI5:4910/02/95SUSQUANNASESSOORSUMMARYREPORTFORSYS49-UNIT2SORTEOBYUNIT,ISSUEDATE8SOOR)1PMISPAGE13SYSSOORNOCCURDATEDESCRIPTION492-84-039OTHERAFFECTEDSYS:54492-84040492-84-075492-84-09749284-0983/28/843/28/845/04/846/21/845/21/84ESWVLVNOTFULLYOPEN;CAUSINGHIBEARINGTEMPONRHRPUMPA.THROTTLEVLVTO'A'OTORCOOLERWASININTERMEDIATEPOSITION,OP-54001-5INDICATEDVLVLOCKEDOPEN.GULFOILANALYSISSTATESLOWERBEARINGOILISSAT~UPPERBEARINGOILHASHIGHVISCOSITY.CLOSEDRHR'A6O'ECLAREDINOP.SURV.DETERMINATEDTOBEINCORRECT.SRITESTRESULTSCONTRIDICTEDTHESURVEILLENCEDATA.ALSO,AIRWASDISCOVEREDINBOTHINSTRUMENTLOOPS.WA-V46538RECALIBRATEDTHEFLOWINDICATORSFORBOTHLOOPS.CLOSEDRHRO.O.S.FORMORETHAN2HOURS'OTHLOOPS.'8'ASREMOVEDFORAPIPINGVIBRATIONTEST.IBCWASPERFORMINGASURVEILLANCEONF0086F009ANDCHEh1WASPERFORMINGALOOP'A'LUSH.CLOSEDPRICONTISO6CKVALVESDUALINDICATIONWHENCLOSUREATTEMPTED.SV251228(TESTABLECHECKVALVEF1228)SV251508(TESTABLECHECKVALVEF0508ACTUATOR)REF1SOOR'S284098>>101'078114-++CLOSED*+'8'PCIINJECTIONVLVCLOSEDTOCOMPLYWITHT.S.3.5.1.83.492-84-10149284107492-84-114492-84-216OTHERAFFECTEOQYS:83492-84-251492-84-283492-84-3135/21/845/24/845/28/848/09/849/19/8410/16/8411/03/84REF1SOOR2-84-097<iCLOSEDi+2F0158INJECTIONVALVELEAKING,DUALINDICATIONDISPLAYED.THEVALVEWASDISASSEMBLED,REPAIREOANDRETURNEDTOSERVICE.REF:BOOR2-84-097CLOSEDLEAKAGEh(EASUREMENTOFRHRLOOP'8'SOVLVSEXCEEDEDLIMITS.RHRVALVEHV-2F0158WASDISASSEMBLEDANDREBUILT.LLRTANDAHYDROWERESUCCESSFULLYCOMPLETE.REF:SOOR284097.CLOSEDRXSHUTDOWNTOCOMPLYWITH'.S.FORLPCILOOP'8'NOP.THEN1TBVHUNGOPEN.WHENTHEVALVEWASDISASSEMBLEDACHIPPINGHAMMERWASFOUNDINTHEVALVE.REF1SOOR'S2-84--0978107.NQAREVIEWREQ.DELETEDPEROPS-5R.B.~CLOSEDSURVSI-249-203WASCOMPLETEDONEDAYPASTVIOLATIONDATE.PERSONNELERRORWASCAUSE~16CHASCHANGEDROUTINGOFCOMPLETEDSURVEILLANCESTOPREVENTRECURRENCE.CLOSEDRHR"D"PUMPFAILEDTOSTARTONMANUALACTUATION,DUETO52LSCONTACTSN~FUHCTIONINGPROPERLY.WAV41160REPLACEDRELAYANDRESTOREDSYSTEM.CLOSED'A'HRLOOPDECLAREDINOPWHENISICRITERIAFAILEO.INSTRUMENTSHAVEGREATERCALTOLERANCE~THENISICRITERIASURV.PROCEDUREAD-QA-423WASREVISEDTOPREVENTRECURRENCE.CLOSEDSNUBBERDCA-210-H11ON'8'OOPOFRHRISSUSPECT,PERRESULTSOFST17.7PERTER90.WAV43859REPLACEDSNUBBER.NCR85-0130VERIFIEDPROPEROPERATIONPERWAV63915DURINGFIRSTREFUELINGOUTAGE.CLOSED PMI5:4910/02/95SUSQUNASESSOORSUMMARYREPORTFORSYS49-UNIT2SORTEDBYUNIT~ISSUEDATEdSOORNPMISPAGE14SYSBOOR'NOCCURDATEDESCRIPTION49284-334492-85-032OTHERAFFECTEDSYS:12/10/841/29/85IMPROPERFUSEPOSITIONLABELINGINTB0631PANEL.WA-V41612ISSUEDFORFUSELABELING.AD-QA-324'/BEISSUEDT/PROVIDEGUIDANCEFORPLTLABELINGPROG.BOOR2-84-311ISSIMILAR.CLOSED,RHRSHUTDOWNCOOLINGSUCTIONISOLATIONVLV2F008DIDNOTISOLATE(OUTBOARD).INBOARDVALVE2F009ISOLATEDAT74PSIGRXPRESSURE.PS-831-N018A(BARTON288A)WASRE"CAL'DPERWA-V50092dV56224~RFM'SWRITTEN1/30/86.THEISOLATIONWASANESFACTUATION.PMR86-7026ALSOPROVIDESCORRECTIVEMEASURESFORBOOR1-84-483.CLOSED49.2-85-0613/13/85RHRROOMCOOLERVLV211-127AWASPERMITTAGGEDOPENVICECLOSEDTHISVLVHASLEFTHANDTHREADSWHICHCONTRIBUTED.TOTHEERRORSEWRPE-1622WRITTENTOIDALLVLVS.OFTHISTYPE.OPSLABELEDTHOSEVALVESWHICHWEREREADILYKNOWNTOBEREVERSEACTING.TECHCOMPLETEDAREVIEWOFPLANTVALVESTOIDANYREMAININGONESREQUIRINGLABELS.PMR87-9048ISSUEDBYNPE1/26/88.LABELINGCOMPLETEDPERLRF87-177-239d88-277-017.WAV83845RELOCATEDHANDWHEEL180DEG./CLOSED492-85-121492-85-123492-85;28749H2-86-023492-86-079492-86-092492-86-113492-86-12049.286-1294/27/864/27/8512/20/851/31/866/18/866/18/868/06/868/17/868/24/86WATERHAMMEROCCURRED'LACINGRHR'8'OOPINSHUTDOWNCOOLINGAPPARENTCAUSEWASPIPINGBEINGFILLEDWHENBYPASSVLV.WASOPENED.REF.MASTERSOOR2-85-123.CLOSED.SHUTDOWNCOOLINGVLVSISOLATEDAFTERRHR'O'UMPWASSTARTED.APPARENTCAUSEWASSTEAMPOC'KETSINPIPINGWHICHCOLLAPSEDANDCAUSESEXCESSIVEFLOWSIGNAL.MASTERBOORFOR2-85121.EVENTHASNOTRE-OCCURREDASOF10/6/86.REFEWRIREIR101171THEISOLATIONCONSTITUTEDANESFACTUATION.CLOSEDRHR,SHUTDOWNCOOLINGPRESSUREPERMISSIVESFOUNDOUTOFTOL.DURINGSI-249-304.~PIS-831-2N018A~PS-831-2ND(88,DUETOSETPOINTDRIFTANDWERERE-CAL'EDPERSAA54425.CLOSEDRHR/DRYWELLSPRAYFT-251208WASFOUNDOUTOFTOL.DURINGPMWAP60122.ANDWASRECAL'ED'ERIC-DC-100,REV.5.OPSREVIEWHAS,DETERMINEDTHATSURV.RESULTSWERENOTAFFECTEDSINCETHISINSTRUMENTISNOTUSEDINANY"SO'5".CLOSEDCONSEQUENCESOFERF'SINOP'ED8CS,8LPCIdSGTS.REF.ERFA51508,A53440,A53968dA54445.THEREQUIREDECCSSYSTEMEQUIPMENTWASRESTOREDTOOPERABLESTATUSdLCO'SWERECLEARED.PNSS/OPS/IdCADDRESSED.WAV66623ERFPREPFAILEDTONOTERHRISOLATIONSWITCH.CLOSEDRHRINITIATIONPERMISSIVEPS-831-2N0188FOUNDOUTOFTOL.DURINGSI-249"304,WHICHWASTHENRE-CAL'ED~CALIBRATIONDRIFTWASTHEDETERMINEDCAUSE.CLOSED'8'OOPOFRHRINOPDUETOFAILUREOFISITESTING.VENDORWELDNGBB-204-4-2-CISSUSPECT.NCR86-0424DETERMINEDCAUSETOBEMANUFACTURINGDISCONTINUITIES,WAV64274CORRECTEDNRPDSCOMPLETE.CLOSEDSPILLOFAPPROX30GAL.OFWATERDURINGLLRTOFRHRTHRUDISASSEMBLEDHV-251-F017A.NOPERSONNELWERECONTAMINATEDORINJURED.SUPT.MEMOPROVIDESGUIDELINESFORLLRTDURINGTHEREMAINDEROFTHEU2FRO.(PLIS23922)CLOSEDCONTAMINATED'OILDRIPPEDFROMRHRVLV558WHILEBEINGMOVED PMIS.4910/02/95SUSQUNNASESSOORSUMMARYREPORTFORSYS49-UNIT.2SORTEDBYUNIT,ISSUEDATE&SOORNPMI5PAGE15SYSBOORNOCCURDATEI'ESCRIPTION492-86-132492-86-136492-86-139492-86-147492-86-153492-86"169OTHERAFFECTEDSYS:34492-86-171492-86-239492-86-181492-86-2078/25/869/05/869/07/869/18/869/25/8610/08/8610/12/8610/13/8610/24/8611/20/86FROMRXBLDG683'OTHEDECONSHOP.13INDIVIDUALPERSONNELCONTAMINATIONREPORTSWEREWRITTENASARESULT.ATRANSFERCARTSUITEDFORVAI,VESHASBEENFABRICATEO.CLOSEDSPILLOFAPPROX100GALCONTAMINATEDWATERDURINGWORKONRHRPUMPDISCHARGEFLOWORIFICEREPLACEMENT.ONEPERSONWASCONTAMINATEDANDWASDECONNED~ASWASTHEWORKAREA.ORIGINOFTHEWATERCOULDNOTBEDETERMINED.CLOSEDRADIOGRAPHYOFRHR178VALVECAUSEDVENDORTORECEIVE170MRWHOLEBODYEXPOSURE.CAUSEDBYAFAULTYCAMERAMECHANISMCOMBINEDWITHANON-FUNCTIONINGSURVEYMETER,(OWNEDBYU.S.TESTiNG).HP-HI-048ISSUEDTOASSISTINPREVENTIONOFRECURRENCECLOSEDRHR'D'UMPSEALWATERCOOLERSPOOLPIECEMISSINGAREVIEWOFWORKDOCUMENTSCOULDNOTDETERMINEHOWSPOOLWASREMOVED.SYSTEMWASRESTORED.MAINTSUPERVISORSREVIEWEDEVENT,REFPLIS24951.CLOSEDRHRLPCIPUMPPRESSUREHI~PS-E11-2N020AFOUNDOUTOFTOLDURINGSI-249-303,CAUSEDBYSETPOINT,DRIFT,ANDWERERE-CAL'EDREFSAA63204CLOSEDHPCISTEAMSUPPLYPIPINGBECAMEPRESSURIZEDDURINGRHRTESTINGRHRVALVES2F051A652AWEREVERIFIEOINTHECLOSEDPOSITIONBUTARESUSPECTEDOFLEAKING.REF:PMR867033634CLOSEDSWITCHGEARROOMCOOLINGINOPCAUSINGALLECCSTOBEINOP'A''8'XUNITOUTOFSERVICEFAN2V2228WOULDNOTSTART.ELECMAINTINVESTIGATEDPERWAV61096~-WHENDXUNITWASRESETACONTROLROOMPANEL,THE'8'ANSTARTED.SI-251-401ANDSI280403REVISEDTOALERTSHIFTSUPERVISIONOFOXAUTOSTARTLOGIC.CLOSEDRHR2F008VALVECLOSEDWHENSWAPPINGSHUTDOWNCOOLINGPUMPS.(MASTERSOORFOR1-84-138)APARTIALSYSDRAINDOWNOCCURREDRESULTINGINAWATERHAMMERUPONRESTART.THEISOLATIONCONSTITUTEDANESFACTUATION.OPSPERSONNELREVIEWEDTHEEVENT.CLOSEDRHRHV-251-F015AREWORKEDW/0STROKETIMETESTINGPERFORMED.WAV645496WAV63141.AD-QA-302REVISEDBYOPS.TOUSESURVEILLANCEPROCEDURESTOINSUREAPPLICABLEVALVESARETESTEDFOLLOWINGMAINTENANCE.OPSHOTBOXTRAINING87-07REVIEWEDTHEEVENT.PCAF1-87-0584ISSUEDTOAD-QA-502TOPROVIDECONTROLSFORREPACKEOVALVES.CLOSEDRHRPIPINGHANGERDAMAGEDFROMWATERHAMMERWHICHOCCURREDWHILEATTEMPTINGTOSEATACHECKVALVE.OPSTOREVIEWEVENTANDCONTACTTECHPRIORTOATTEMPTINGASIMILARACTIONOFSEATINGVALVES.PCAF'SINITIATEDFORGO-100/200-002.REFNSAGREPORT187.OPERATORTRAININGONWATERHAMMER,SC038HASBEENDEVELOPED.CLOSED'8'HRPMPFAILEDTOiSTARTWHILEALIGNING'8'OOPRHRINSUPPPOOLCOOLINGNIUVI=FDRUPCOMINGRCICRUN.4KVBKRWASNOTRACKEDCOMPLETELYINTOPLACE.WAV61285INVESTIGATED.THEBKRWASRACKEDOUTTHENBACKIN.'8'HRPUMPTHENSTARTEDPROPERLY.SAFTYRELATED4KVBKRLOADSTOBETESTEDFOLLOWINGBKRRACKIN"CLOSED PMIS:E4910/02/95SUSQUENNASESSOORSUMMARYREPORTFORSYS49-UNIT2SORTEDBYUNIT~ISSUEDATEdSOORNPMISSYSSOORN492-87-03649287045492-87-092492-87-107492-87161OCCURDATE3/08/87DESCRIPTION12/17/87RHRFLOWFi-25105FAILEDTOINDICATEDURING50-200-001CAUSEDBYALOOSEWIREONTERMINAL14OFSRU03,WAV76326CORRECTED.CLOSED3/23/87'8'HRPUMPFAILEDTOSTARTDURING50-249"002,(2P20281DUETOOPENBREAKERCONTACTSCAUSEDBYSTICKYOILRESIDUEONTHEOPERATINGLINKAGE.WAV70163CORRECTED.MT-GE-006REVISEDTOELIMINATELUBRICANTS.CLOSED~q6/21/87RHRF024AWOULtINOTELECTRICALLY,OPENFULLYDURINGSUPPRESSIONPOOLCOOLINGLINEUPDUETOFAILUREOFTHEMOTORPINIONGEAR.WAV70299REPAIRED.CLOSED>a~i."~<<~p~qeyeg~~~~~;~~ivi..~-~"~a"-.'".':,~rV.:<~..p.=<<qp,7/13/87RHR'8'ULLFLOWTESTVALVE2F0248INOPERATIVECAUSEDBYALOOSESTEMANTI-ROTATIONDEVICE.WAV73632CORRECTED.AREVIEWWASMADEOFNCR'S82-911d82-1071WHICHHADID'DADDITIONALVALVESTOBEINSPECTEDFORTHISCONDITIONdWA'SHAVEBEENISSUED.NPEISSUEDEWRM79457WHICHLISTSVALVESSUBJECTTOTHISPROBLEM.PM'SHAVEBEENGENERATEDFORALLAPPLICABLEVALVESCLOSEDRHRHV2F0288TRIPPEDOVERLOADSONTWO.ATTEMPTSTOOPENTOPERFORM50-249-002.WAV70827INVESTIGATEDANDFOUNDTHEVALVEMOTORTOBEINOPERABLEANDREPLACEDIT,.CLOSED-j~g4'~=~492"88-036492-88-069492-88-079492-88-086OTHERAFFECTEDSYS:492-88-096492-88-097492~88-098~tI'/05/883/19/883/29/884/08/884/19/884/19/884/19/88AUTOCLOSUREOFTHERHRSHUTDOWNCOOLINGVALVEF009OCCURREDDURINGOP-249-002.IdcINVESTIGATIONFOUNDPDIS-E11-2N019AINOPANDRE-CAL'EDPERWAA80992.CLOSEDRHRMINFLOWVALVEF007ACONTROLCIRCUITDIDN'TOPERATEPROPERLYINTHATITOPENEDIMMEDIATELY,RATHERTHANAFTERATIMEDELAY.DETERMINEDCAUSEWASFAULTYOPERATIONOFRELAYE11-K84AWHICHWASREPLACEDPERWAV80280.THISISMASTERBOORFOR2-88-144WAV80363INSPECTEDRELAYE11-K84AWITHNODRIFTNOTED.CLOSEDFUSEF168WASFOUNDINSTALLEDIN20612WITHAREDTAGHANGINGONTHEFUSEHOLDER.FUSEWASINSTALLEDANDVERFIEDON3-21-88TOCLOSEPERMIT2-88-720WHILEANOTHERPERMIT,2-88738WASSTILLINEFFECTWITHIT'SREDTAGHANGINGONTHEFUSEHOLDER.THEEVENTWASREVIEWEDDURINGOPSSOA88-05.CLOSEDWORKERSNOTICEDTHATAJUMPERWASDISCONNECTEDINPANEL20617.INVESTIGATEFOUNDTHATTHEJUMPERWASINSTALLEDFORUSEDURINGALLRTTEST.ITCOULDNOTBEDETERMINEDIFTHEJUMPERHADBEEN'BUMPED'FFBYTHEWORKERORIFITWASOFFPRIORTOTHEIRWORK.ENG..SUPPORTUSE'S"WILLBEREVISEDTOUTILIZEBANANAJACKS.TECHREVIEWEDALLPENSSURV'SANDISSUEDWA'STOINSTALLBANANAJACKS.CLOSED'A'HRPUMPDIDNOTSTARTASEXPECTEDDURINGSE-249-001.DETERMINEDCAUSEWASIMPROPERLIMITSWITCHSET-UPINHV261F004A.WAV80366CORRECTED.CLOSED'A'HRPUMPUNEXPECTEDSTARTDURINGSE-249-001.THETESTWASSTOPPEDTOADJUSTVALVELIMITSWITCHFORHV-251F004A.THISCAUSEDINITIATIONLOGICTOSEALINANDWASNOTRESETPRIORTORESTARTINGTHETEST.~C/&#x17d;CLOSEDRHR2F024AVALVEPINION'ECAMEDISCONNECTEDFROQTHEMOTORSHAFTANDMECHANICALDAMAGERESULTED.CONDITIONWASFOUNDDURINGPER-FORMANCEOFSE-249-001.WAV83644ANDV80409REPAIRED.
PMI5:4910/02/95SUSQUANNASESSOORSUMMARYREPORTFORSYS49-UNIT2SORTEOBYUNIT,ISSUEDATE8SOOR)1PMISPAGE13SYSSOORNOCCURDATEDESCRIPTION 492-84-039OTHERAFFECTEDSYS:54492-84040492-84-075492-84-09749284-0983/28/843/28/845/04/846/21/845/21/84ESWVLVNOTFULLYOPEN;CAUSINGHIBEARINGTEMPONRHRPUMPA.THROTTLEVLVTO'A'OTORCOOLERWASININTERMEDIATE
PMIS:ER4910/02/95SUSQUEANNASESBOORSUMMARYREPORTFORSYS49-UNIT2SORTEDBYUNIT~ISSUEDATE&SOORPMISPAGE17SYSSOORNOCCURDATEDESCRIPTION49288099492-88-102OTHERAFFECTEDSYS1492-88-107492-88-109492-88-112492-88-125492-88-144492-88-156~492-88-201492-88-216492-89-023492-89-0314/20/884/22/884/22/884/25/884/27/885/16/886/11/886/21/888/12/889/07/882/28/893/04/89CLOSED'A'HRPUMPINADVERTENTSTARTDURINGSE-251-001.APPARENTCAUSEWASDURINGJUMPERINSTALLATION,WHENTERMINATIONCCC3-7WASCONTACTED,ENERGIZINGRELAYSE118ANDK2018.AGUIDELINEHASBEENESTABLISHEDFORJUMPERINSTALLATIONDURINGTP'SANDSE'S.CLOSEDRHRSERVICEWATER'8'OOPRADMONITORLOSTPOWER,CALIBRATIONVALUESWERELOST.CONDITIONWASFOUNDATTHESTART-OFSC-216-104.MONITORISPOWEREDBY2Y219CIRCUIT28,ANYINTERUPTIONWILLCAUSETHESETPOINTVALUESTOBELOST.RHRWASNOTINSERVICETHEREFOREMONITORSWERENOTREQUIRED.POWERWASRESTOREDANDSETPOINTSWEREENTERED.CLOSEDINCORRECTWIRETERMINATIONONRHRLOGICRELAYK958,SUSPECTPMR87-9092AWHICHHADBEENWORKEDDURINGTHE2RFIO.CWOC80418CORRECTEDTHEWIRINGERROR.INVOLVEDPERSONNELREVIEWEDTHEEVENT.CLOSEDRHR'A'ONDUCTIVITYRECORDERWASDISABLEDDUETOBREAKEROUTAGEFORCLEANING'X260.OPSREVIEWEDTHEEVENTWITHPERSONNELDURINGAGENDA88-03.CLOSEDRHRRELAYE11A-K11ACONTACTS364DIDNOTCLOSEDURINGSURVSE-249-002,(RHRDIV2LSFT).INVESTIGATIONFOUNDTHERELAYWASENERGIZED,HOWEVERCONTACTS384WOULDNOTMAKE-UP.WAV80393CLEANED=ANDINSPECTEDCONTACTS.CLOSEDREATORPRESSUREPS-821-2N018FOUNDOUTOFTOLERANCEDURINGSURVSI-249-304ANDWASRECALIBRATEDPERTHESURVEILLANCE.THECONDITIONWASCAUSEDBYSETPOINTDRIFT.PMR867027WILLREPLACETHESWITCHES'LOSEDRHRMINFLOWF007AOPENEDIMMEDIATELYDURINGSHUTDOWNCOOLINGINITIATION.WAV80280REPLACEDSUSPECTRELAYE11-K84A.WAV80363WILLTEST.WAV80558INSTALLED.MONITORINGEQUIPMENTPERTECHENGREF:MASTERSOOR2-88-069CLOSED2DRHRPUMPWASRUN4HOURSWITHOUTESWCOOLINGWATERALIGNED.THE'8'SWPUMPWASSTARTEDRATHERTHANTHE'A'R'O'SREQUIREDBYOP-249-005.RHRUPPERBEARINGSREACHEDTEMPSINEXCESSOF200F.OPSREVIEWEDTHEEVENTDURINGSOA8804.CLOSEDRHRPIS-831-2N018ASW111FOUNDOUTOFTOLERANCEDURINGSURVSI-249-304ANDWASRECALIBRATEDPERTHESURVEILLANCE.CLOSEDSAFETYEVALUATIONFORPMR87-9092AMAYNOTBEADEQUATEREVIEWREFNCR88-0610WHICHCONCLUDEDTHATUNREVIEWEDSAFETYQUESTIONSDONOTEXIST.REFPLI57015AND54445.CLOSEDRHRMINFLOWVALVEF007AOPENEDDURINGSHUTDOWNCOOLINGINITIAT-ION.REFSOOR2-89-037FORCORRECTIVEACTIONS.CLOSEDTERMINATIONSE203062A-.88WERENOTPROPERLYLANDEDIN28216022THECONDITIONWASFOUNDDURINGINVESTIGATIONFORWAV90105.THETERMINATIONSWEREINCORRECTASARESULTOFPMR87-30258.THEMODWASCANCELLEDANDASARESULTSCHEMECHECKSWERENOTISSUED.WAV90105CORRECTEDTHECONDITION.
: POSITION, OP-54001-5INDICATED VLVLOCKEDOPEN.GULFOILANALYSISSTATESLOWERBEARINGOILISSAT~UPPERBEARINGOILHASHIGHVISCOSITY.
PMIS.4910/02/95SUSQNASESBOORSUMMARYREPORTFORSYS49-UNIT2SORTEDBYUNIT,ISSUEDATEdSOORNPMISPAGE18SYSSOORNOCCURDATEDESCRIPTIONOTHERAFFECTEDSYS:49289037492-89-128OTHERAFFECTEDSYS:492-89-139492-89-165OTHERAFFECTEDSYS:49289171OTHERAFFECTEDSYS:83G76D49289-173OTHERAFFECTEDSYS49.2"89-177OTHERAFFECTEDSYS:.492-89-186OTHERAFFECTEDSYS:51492-89-197OTHERAFFECTEDSYS:492-89-2073/15/899/18/899/22/8910/16/8910/21/8910/23/8910/25/8910/31/8911/06/8911/18/89CLOSEDF007AMINFLOWVALVEOPENEDDURINGSHUTDOWNCOOLINGALIGNMENT.APPARENTCAUSEISTS-E11-1N021AOPENINGONINCREASINGFLOW~PMR89-9069d60WEREINITIATED.REFMASTERBOOR1-89-007CLOSEDPSV251F030DFAILEOTOLIFTATDESIREDPRESSUREVALVEWASDISASSEMBLEDTODETERMINECAUSEOFFAILURE,VLVSTEMFOUNDDAMAGED,POSSIBLYDUETOIMPROPERGAGGINGOFPSV.DURINGWAF91676PSV251F029WASFOUNDTOHAVEABENTSTEM.REFMASTERSOOR2-89-197CLOSEDRELIEFVALVEPSV251068GAGGEDINCORRECTLYDURINGWAV84271REFLLRT101,SE249-311.INADEQUATEWORKCONTROLANDPROCEDURESWASTHEDETERMINEDCAUSE.SE-250-310AND311WEREREVISEDTOPROVIDEPROPERDIRECTION.REFMASTERBOOR2-89-197CLOSEDSMALLCONTAMINATEDSPILLDURINGRHRLOGICFUNCTIONALSE-249-001DUETOVENT261077BEINGOPENFORLLRTINVESTIGATIONOFLEAKAGEPASTTHE2F016A.DETERMINEDCAUSEWASALACKOFCOMMUNICATIONBETWEENALLPERSONNELINVOLVEDINTHETEST.OPSREVIEWEDTHEEVENTDURINGSOA90-01.CLOSEDRHRTSH-E11"2N6008WASFOUNDOUTOFTOLERANCEDURINGSURVSI-249-306AND-WASRECAL'EDPER-THESURVEILLANCE.CLOSED'8'ND'D'HRSUCTIONRELIEFVALVESWEREFOUNDLIFTEDFOLLOWINGINITIATIONOFSHUTDOWNCOOLING.DETERMINEDCAUSEWASTHELIFTINGDISCCONTACTINGTHEMANUALACTUALTIONSHAFT.REFMASTERSOOR2-89-197CLOSED'O'HRPUMPWOULDNOTRESTARTDURINGPERFORMANCEOFSE-224-002WHENTHE4KVBREAKERWASRACKEDOUTANDTHENBACKIN,THEPUMP-STARTED.CLOSED7VALVESHADPACKINGTIGHTENEDW/0ERF'SSUBMITTEDPRIORTOWORK=THISRESULTEDINDECLARING3OUTOF7AVAILABLELOWPRESSUREECCSSYSTEMSINOPDUETOSTROKETIMESBEINGUNKNOWN-THECAUSEWASAFAILURETOFOLLOWTHEACTIVITYWORKPLAN.MAINTREVIEWEDTHEEVENTDURINGVALVETEAMTRAINING.PENSREVISEDSE-100/200-002TOENSUREMNTCOMPLIESWITHAD-QA-306PRIORTOWORKINGANYCOMPONENTS.PORCACTIONITEMINITATED,BOORCLOSED.'8'HRPUMPSUCTIONRELIEFVALVELIFTEDDURINGSYSALIGNMENT.REPEATOCCURRENCE,REFSOOR2-.89-173.THELIFTINGDISCANDCASTLENUTWEREFOUNDNOTPROPERLYJAMMEDALLOWINGTHEDISCTOVIBRATEDOWNTHESHAFTTHREADS.MNTADJUSTEDPSVPROGRAMPROCED.CLOSEDCORESPRAYANDRHRTESTABLECHECKVALVESFAILEDTESTREQUIREMENTFORLEAKAGE.THETESTWASREPEATEDANDSATISFACTORYRESULTSWEREOBTAINED.GO-100(200)-002CHANGED>REF.PCAF'S190-0450d2"90-0193 PMIS:4910/02/95SUSQUNASESBOORSUMMARYREPORTFORSYS49-UNIT2SORTEDBYUNIT,ISSUEDATE&SOORllPMI.SSYSBOORllOCCURDATEDESCRIPTIONOTHERAFFECTEDSYS:51492-90.-019OTHERAFFECTEDSYS:492-90-021OTHERAFFECTEDSYS:492-90-076OTHERAFFECTEDSYS:54492-90-165OTHERAFFECTEDSYS:49*2-91-009.OTHERAFFECTEDSYS:492-91-024OTHERAFFECTEDSYS:49291049OTHERAFFECTEDSYS:492-91-062OTHERAFFECTEDSYS:492-91-091OTHERAFFECTEDSYS:492-91-112OTHERAFFECTEDSYS:2/06/902/11/908/29/9012/18/901/08/912/07/913/10/913/10/914/12/91'/23/91CLOSEDRHRCROSSTIERELIEFVALVEPSV-25193LIFTEDANDWOULDNOTRESEATDURINGATTEMPTSTOFLUSHRHRPIPING.THEVALVEWASREWORKEDPERWAV03106.REFMASTERBOOR2-89-197.CLOSEDRHRTESTABLECHECKVALVEHV-251-F0508INDICATIONNOTFULLOPENDURING50-249-014.DETERMINEDCAUSEWASWORNSEALSONTHEAIROPERATORUNEEPACSEALSANDTHEUPPERSEALS.WAV03223REPLACEDTHESEALS.CLOSEDESWLEAKFOUNDATTHE'O'HRPUMPMOTOROILCOOLER.CAUSEDBYHOLEINCOPPERTUBINGATTRIBUTEDTOUNDER-DEPOSITLOCALPITTING,NOTBYASFIRSTIMPLICATED.MICROBIOLOGICALLYINFLUENCEDCORROSIONWHICHSHUTDOWNUNITDUE.TOGENERICIMPLICATIONS.ALLRHRPUMPSHADTHEIRCOOLERSREPLACED.OTHERSAFETYRELATEDHEATEXCHANGESWEREINSPECTEDFORSIMILARCONDITIONS.NOPROBLEMSWEREFOUND.REFSPECH-1004ANDPLAS432REFNCR90-0114.CLOSEDRHRTSH-E11-2N600AWASFOUNDOUTOFTOLERANCEDURINGSI-249-306.THESWITCHWASREPLACEDPERTHESURVEILLANCE.CLOSEDINADVERTENTISOLATIONOCCURREDTORHRSDCINBOARDISOVALVEDURING16CWORKACTIVITIESTOREPLACEPERMISSIVEPRESSSWITCHPIS-821-2N018A.REF.WAV16020PLANNERSGUIDEWASREVIEWEDBYI6CASSISTFOREMAN.EXTENSIONTOPOSTCYC25APPROVEDBYPORC92-168.ECO93-6041INSTALLEDWIRINGINT8-2000682.CLOSEDPOSITIONINDICATIONFOR'O'HRPUMPBREAKERWASLOST.WAV10119INVESTIGATEDANDFOUNDASPRINGCLIPHADFALLENFROMTHEBREAKERLINKAGEANDALLOWEDTHELINKAGETOSEPARATE.ACLIPWASINSTALLEDANDTHEBREAKERSTROKEDSAT.CLOSEDPSV-251-F030CLIFTEDSEVERALTIMESWHILEFILLINGANDVENTOFTHE'A'OOPINPREPARATIONFORSHUTDOWNCOOLING.REFMASTERSOOR1"90-259CLOSEDBOTHLOOPSOFLPCIWEREINOPATTHESAMETIMEWHILEPLACINGRHRINTOSHUTDOWNCOOLINGMODE.CLOSEDSNUBBERNOTISTALLEDON'A'ECIRCPIPINGASREQUIRED.RHRSHUTDOWNCOOLINGDIVIWASREQUIREDTOBEOPERABLE.THESNUBBERWASREMOVEDVIAWAY00350ANDTOBERE-INSTALLEDPERWAY00155WHICHWASCLOSEDWITHOUTINSTALLINGTHESNUBBER.THESNUBBERWASREPLACEDPERWAY00294.CLOSEDRHRDISCHARGERELIEFPSV-251-F025AFOUNDLIFTED.INVESTIGATIONCOULDNOTDETERMINEACAUSE.REFWAV13549.CLOSED PMI4910/02/95~SUSQNNASESSOORSUMMARYREPORTFORSYS49-UNIT2SORTEOBYUNIT~ISSUEDATE&SOORIIPMISPAGE20SYSSOORNOCCURDATEDESCRIPTION492-91-159OTHERAFFECTEDSYS:492-91-171OTHERAFFECTEDSYS:492-92-007OTHERAFFECTEDSYS1492-92"020OTHERAFFECTEDSYS:492-92-032OTHERAFFECTEDSYS:492-92-033OTHERAFFECTEDSYS:492-92-026OTHERAFFECTEDSYS:64492-92-095OTHERAFFECTEDSYS:492-92-108OTHERAFFECTEDSYS:~492-92-118OTHERAFFECTEDSYS:6/13/917/09/911/21/922/24/923/19/923/19/923/23/929/13/929/26/9210/07/92RHRSUCTIONPRESSUREGAUGEROOTVALVESWEREFOUNDCLOSED.THEVALVEWEREPLACEDINTHEIRPROPERPOSITION.INVESTIGATIONCOULDNOTDETERMINEHOWTHEVALVESGOTCLOSED.LRF91-249-231WASISSUED'EFDCN91-2331.CLOSEDROOTVLVOP1-PI-2R0038WASFOUNDCLOSEDVS:OPENASREQUIREDBYCL-249-0015.FOUNDDURINGSO249-002.ROOTCAUSECOULDNOTBEDETERMINED.THEVALVEWASRESTOREDTOTHEOPENPOSITION.OPSANDI&CREVIEWEDTHEEVENT.CLOSEDRHRSI-249-306FOUNDTE-E11-2N009ADEFECTIVEd2N600AOUTOFCALWAV26047REPLACEDTHEMETERMODULEINTH1;INDICATIONCIRCUIT,.WAV26025REGAL'EDTSH-E11-2NBOOA.CLOSEDWORKERNOTICEDTHAT2BOLTSWEREMISSINGFROMRHRFLANGEWHEREFLOWORIFACEFO-E11-20001-82WASCONNECTED.MAINTWASCONTACTEDANDTHEMISSINGBOLTSWEREINSTALLEDPERWAV23106NOCAUSECOULD'BEDETERMINEDFORTHEABSENSEOFTHEBOLTS.CLOSED.PSV-251-F029LIFTEDDURINGLINEUPFORSHUTDOWNCOOLING.VALVERESPONDEDPERDESIGNTOOVERPRESSURECONDITIONLIKELYCAUSEDBYACCOUSTICHYDRAULICEXCITATION.REPLACEMENTOFTHEVALVEISPLANNEDASPARTOFTHERELIEFVLVUPGRADEPROGRAM.CLOSEDPSV-251-F025AAPPARENTLYLIFTEDDURINGSHUTDOWNCOOLING.WAV23161INVESTIGATED,THEVALVEBODYWASLIGHTLYTAPPEDANDTHEVALVERESEATED.CLOSEDBKR28226062,28216053,28237043d28237043ANOTEQ,NCR92-049.ERF'SANDWAISWRITTEN.THEBREAKERSINCUBICLES28216053AND28226062WEREREPLACED.EQAR-023ANDEQDF-48ISBEINGREVISEDTOSPECIFYTHEREQUIREDSUPPLIEROFTHECIRCUITBREAKERS.CLOSEDFLOWTHRURHRCHECKVLVF031A/F046ALIFTED'A'UCTIONRELIEFPSV-251-F030A.THE'A'HRPUMPANDASSOCIATEDLPCIFLOWPATHWERESUBSEQUENTLYDECLAREDINOPDUETOTHENEEDTO,ISOLATEAPOTENTIALRXVESSELDRAINPATH.REFWAV20523.MNTREPAIREDF046APERWAP23099.CLOSEDESFACTUATION'WHENRHROUTBOARDISOLATIONHV-251-F008CLOSEDDURINGSHUTDOWNCOOLING.'8'HRPUMPHADTRIPPED.REFPLA541.DEFECTIVERELAYBASEON821HK94WASREPLACEDBYWAV20623.CLOSED'A'HRPUMPFAILEDT~~TDURINGSYSTEMRESTORATIONFOLLOWINGOUTAGEACTIVITIES.ATBREAKER2A20101,AFLAGWASUPONTHE'A'HASE50/51RELAY.DETERMINEDCAUSEOFTHISEVENTWASANIMPROPERLYADJUSTEDLIMITSWITCHFORHV251F004A,RHRPUMPSUCTION.THEACTUATORWASINSPECTED/ADJUSTEDPERMT-GM-050.THEVALVEWASTESTEDSAT.MT-GM-050REVISEDTOENSURECORRECT4TRAINLIMITSWITCHPOSITION.CLOSED2.
CLOSEDRHR'A6O'ECLARED INOP.SURV.DETERMINATED TOBEINCORRECT.
PMIS.4910/02/95SUSQNNASESSOORSUMMARYREPORTFORSYS49-UNIT2SORTEDBYUNIT,ISSUEDATE6SOORNPMISPAGE21SYSSOORN492-92-126OTHERAFFECTEDSYS:492-92132OTHERAFFECTEDSYS:69492-92-133OTHERAFFECTEDSYS:54993460OTHERAFFECTEDSYS:4993-458OTHERAFFECTEDSYS:4993-461OTHERAFFECTEDSYS:4993-467OTHERAFFECTEDSYS:4994-175OTHERAFFECTEDSYS:4994-241OTHERAFFECTEDSYS:4994-240OCCURDATE10/15/9210/26/9210/26/9212/11/9312/19/9312/21/9312/21/933/15/944/02/944/07/94DESCRIPTIONRELIEFVALVEONTESTPUMPBLEWOFFDURINGSE-249-202.PRESSUREWASAT800PSI.WORKERWASDRENCHEDWITHWATERBUTNOTCONTAMINATED.THETESTSKIDWILLBEREWORKEDTOELIMINATECOMPRESSIONFITTINGSONRELIEFVALVES.CLOSEDLOOSETERMINATIONONTERMINAL81OFRELAY821H-K59CAUSEDTHERELAYTODE-ENERGIZE.OCCURREDDURINGPCISTESTINGUNDERSE-269-200FORDCP92-9006.CLOSED.SHUTDOWNCOOLINGVALVESISOLATEDDUETOGROUNDEDLEAD,ESFACTUATION.HV-261F009ANDHV-251F015ACLOSED.ERTREQUIRED~DETERMINEDCAUSESWERE:1)LEADWASNOTTERMINEATED.2)INVOLVEDPERSONNELDIDNOTPLANFOREVERYPOSSIBLEFAILURE.3)TIGHTWORKSPACE/PHSICALLYDIFFICULT.REFPLAS648.CLOSEDRHRHV-251-F0038FAILEDTOOPENFOLLOWINGCLOSUREWHILEINSDC.SiTHEVALVEWASCLOSEDBECAUSECOOLDOWNRATEWASTOOHIGH.OPSINVESTIGATIONFOUNDTHEVLVBREAKERTHERMALSHADTRIPPED.DETERMINEDCAUSEWASTHERMALBINDING'P-149/249-002WEREREVISEDTOPREVENTRECURRENCE.CLOSEDVACUUMSUCKEDVLVBONNETFORHV-261F0038BACKONTOVLVBODYDURINGWAV33836BREACHANDDISASSEMBLYONTHERHRSYSTEM.THEBONNETWASRE-INSTALLEDTOTERMINATETHEVACUUMLEAKAGE.ERTREQUIRED.NDAP-QA-0302REV3ISSUED.OPSREVIEWEDTHEEVENT.MAINTREVIEWEDTHISEVENTWITHMAINTPLANNERS.CLOSEDRHRRADWASTEVENTVLV261-811FOUNDUNCAPPEDCONTRARYTOCLWHICHREQUIRESITTOBECAPPED,CL-249-0018.PROBABLECAUSEWASDURINGFILLANDVENTEVOLUTION.OPSWILLREVIEWTHISEVENT.MOATRAININGCYCLE94-1COMPLETE.CLOSEDPOTENTIALSTATUSCONTROLEVENTWHENWRONGDIVRHRCLIMPLEMENTEDROOTCAUSEOFTHISOCCURRENCEWASOPERATORERROR.ANINDEPENDENTVERIFICATIONWASPERFORMED.MOA94-1REVIEWEDTHISEVENTSSOOR93-201WILLADDRESSVALVELOCKINGPOLICY/METHODS'LOSEDHANDWHEELFORRHRLOOPAINBOARDINJECTIONTESTVLVOFFOFSTEMSFOUNDONGRATING.VLV251063.CONDITIONWASFOUNDDURINGINITIALDRYWELLENTRYFOLLOWINGSHUTDOWN.INVESTIGATIONFOUNDTHEVALVESTEMHADFAILEDDUETOHIGHSTRESSLOADINGANDPOORDESIGNSTHEVALVEWASREPLACEDWITHADIFFERENTDESIGNPERWAV43319RIE940081.CLOSEDMATERIALCUTFROMPIPEHANGERCLAMPW/0WORKINSTRUCTIONSORENGINERINGANALYSIS.HANGERGBB-205-H89~WAV43467.HEDETERMINEDCAUSEWASMIS-INTERPRETATIONOFTHEWORKPLANBYTGROUPFOREMAN.NCR94-079,CALEC-049-1007'SE-AS-ISDISPO.MAINTCONDUCTEDTRAININGONTHEEVENT.CLOSEDSCAFFOLDINGINTERFEREDWITH'8'HRDISCHCHECKVALVECLOSING.SCAFFOLDINGBUILTNEARTHE'8'UMPDIDNOTALLOWTHECHECKVALVEHANDLETOSWINGFULLYINTHECLOSEDPOSITION.TRAININGWASCONDUCTEDFORTHE'DRAIN'REWS.  
SRITESTRESULTSCONTRIDICTED THESURVEILLENCE DATA.ALSO,AIRWASDISCOVERED INBOTHINSTRUMENT LOOPS.WA-V46538 RECALIBRATED THEFLOWINDICATORS FORBOTHLOOPS.CLOSEDRHRO.O.S.FORMORETHAN2HOURS'OTH LOOPS.'8'ASREMOVEDFORAPIPINGVIBRATION TEST.IBCWASPERFORMING ASURVEILLANCE ONF0086F009ANDCHEh1WASPERFORMING ALOOP'A'LUSH.CLOSEDPRICONTISO6CKVALVESDUALINDICATION WHENCLOSUREATTEMPTED.
SV251228(TESTABLE CHECKVALVEF1228)SV251508(TESTABLE CHECKVALVEF0508ACTUATOR)
REF1SOOR'S284098>>101'078114-++CLOSED*+
'8'PCIINJECTION VLVCLOSEDTOCOMPLYWITHT.S.3.5.1.83.492-84-10149284107492-84-114492-84-216OTHERAFFECTEOQYS:
83492-84-251492-84-283492-84-3135/21/845/24/845/28/848/09/849/19/8410/16/8411/03/84REF1SOOR2-84-097<iCLOSEDi+
2F0158INJECTION VALVELEAKING,DUALINDICATION DISPLAYED.
THEVALVEWASDISASSEMBLED, REPAIREOANDRETURNEDTOSERVICE.REF:BOOR2-84-097CLOSEDLEAKAGEh(EASUREMENT OFRHRLOOP'8'SOVLVSEXCEEDEDLIMITS.RHRVALVEHV-2F0158 WASDISASSEMBLED ANDREBUILT.LLRTANDAHYDROWERESUCCESSFULLY COMPLETE.
REF:SOOR284097.CLOSEDRXSHUTDOWNTOCOMPLYWITH'.S.FORLPCILOOP'8'NOP.THEN1TBVHUNGOPEN.WHENTHEVALVEWASDISASSEMBLED ACHIPPINGHAMMERWASFOUNDINTHEVALVE.REF1SOOR'S2-84--097 8107.NQAREVIEWREQ.DELETEDPEROPS-5R.B.~CLOSEDSURVSI-249-203 WASCOMPLETED ONEDAYPASTVIOLATION DATE.PERSONNEL ERRORWASCAUSE~16CHASCHANGEDROUTINGOFCOMPLETED SURVEILLANCES TOPREVENTRECURRENCE.
CLOSEDRHR"D"PUMPFAILEDTOSTARTONMANUALACTUATION, DUETO52LSCONTACTSN~FUHCTIONING PROPERLY.
WAV41160REPLACEDRELAYANDRESTOREDSYSTEM.CLOSED'A'HRLOOPDECLAREDINOPWHENISICRITERIAFAILEO.INSTRUMENTS HAVEGREATERCALTOLERANCE
~THENISICRITERIASURV.PROCEDURE AD-QA-423 WASREVISEDTOPREVENTRECURRENCE.
CLOSEDSNUBBERDCA-210-H11 ON'8'OOPOFRHRISSUSPECT,PERRESULTSOFST17.7PERTER90.WAV43859REPLACEDSNUBBER.NCR85-0130VERIFIEDPROPEROPERATION PERWAV63915DURINGFIRSTREFUELING OUTAGE.CLOSED PMI5:4910/02/95SUSQUNASESSOORSUMMARYREPORTFORSYS49-UNIT2SORTEDBYUNIT~ISSUEDATEdSOORNPMISPAGE14SYSBOOR'NOCCURDATEDESCRIPTION 49284-334492-85-032OTHERAFFECTEDSYS:12/10/841/29/85IMPROPERFUSEPOSITIONLABELINGINTB0631PANEL.WA-V41612 ISSUEDFORFUSELABELING.
AD-QA-324'/BE ISSUEDT/PROVIDE GUIDANCEFORPLTLABELINGPROG.BOOR2-84-311ISSIMILAR.CLOSED,RHRSHUTDOWNCOOLINGSUCTIONISOLATION VLV2F008DIDNOTISOLATE(OUTBOARD).
INBOARDVALVE2F009ISOLATEDAT74PSIGRXPRESSURE.
PS-831-N018A (BARTON288A)WASRE"CAL'DPERWA-V50092 dV56224~RFM'SWRITTEN1/30/86.THEISOLATION WASANESFACTUATION.
PMR86-7026ALSOPROVIDESCORRECTIVE MEASURESFORBOOR1-84-483.
CLOSED49.2-85-0613/13/85RHRROOMCOOLERVLV211-127AWASPERMITTAGGEDOPENVICECLOSEDTHISVLVHASLEFTHANDTHREADSWHICHCONTRIBUTED
.TOTHEERRORSEWRPE-1622WRITTENTOIDALLVLVS.OFTHISTYPE.OPSLABELEDTHOSEVALVESWHICHWEREREADILYKNOWNTOBEREVERSEACTING.TECHCOMPLETED AREVIEWOFPLANTVALVESTOIDANYREMAINING ONESREQUIRING LABELS.PMR87-9048ISSUEDBYNPE1/26/88.LABELINGCOMPLETED PERLRF87-177-239d88-277-017.
WAV83845RELOCATED HANDWHEEL 180DEG./CLOSED492-85-121492-85-123492-85;28749H2-86-023492-86-079492-86-092492-86-113492-86-12049.286-1294/27/864/27/8512/20/851/31/866/18/866/18/868/06/868/17/868/24/86WATERHAMMEROCCURRED'LACING RHR'8'OOPINSHUTDOWNCOOLINGAPPARENTCAUSEWASPIPINGBEINGFILLEDWHENBYPASSVLV.WASOPENED.REF.MASTERSOOR2-85-123.
CLOSED.SHUTDOWNCOOLINGVLVSISOLATEDAFTERRHR'O'UMPWASSTARTED.APPARENTCAUSEWASSTEAMPOC'KETSINPIPINGWHICHCOLLAPSED ANDCAUSESEXCESSIVE FLOWSIGNAL.MASTERBOORFOR2-85121.EVENTHASNOTRE-OCCURRED ASOF10/6/86.REFEWRIREIR101171THEISOLATION CONSTITUTED ANESFACTUATION.
CLOSEDRHR,SHUTDOWNCOOLINGPRESSUREPERMISSIVES FOUNDOUTOFTOL.DURINGSI-249-304.
~PIS-831-2N018A
~PS-831-2ND(88, DUETOSETPOINTDRIFTANDWERERE-CAL'ED PERSAA54425.CLOSEDRHR/DRYWELL SPRAYFT-251208 WASFOUNDOUTOFTOL.DURINGPMWAP60122.ANDWASRECAL'ED'ER IC-DC-100, REV.5.OPSREVIEWHAS,DETERMINED THATSURV.RESULTSWERENOTAFFECTEDSINCETHISINSTRUMENT ISNOTUSEDINANY"SO'5".CLOSEDCONSEQUENCES OFERF'SINOP'ED8CS,8LPCIdSGTS.REF.ERFA51508,A53440,A53968dA54445.THEREQUIREDECCSSYSTEMEQUIPMENT WASRESTOREDTOOPERABLESTATUSdLCO'SWERECLEARED.PNSS/OPS/IdC ADDRESSED.
WAV66623ERFPREPFAILEDTONOTERHRISOLATION SWITCH.CLOSEDRHRINITIATION PERMISSIVE PS-831-2N0188 FOUNDOUTOFTOL.DURINGSI-249"304, WHICHWASTHENRE-CAL'ED
~CALIBRATION DRIFTWASTHEDETERMINED CAUSE.CLOSED'8'OOPOFRHRINOPDUETOFAILUREOFISITESTING.VENDORWELDNGBB-204-4-2-C ISSUSPECT.NCR86-0424DETERMINED CAUSETOBEMANUFACTURING DISCONTINUITIES, WAV64274CORRECTED NRPDSCOMPLETE.
CLOSEDSPILLOFAPPROX30GAL.OFWATERDURINGLLRTOFRHRTHRUDISASSEMBLED HV-251-F017A.
NOPERSONNEL WERECONTAMINATED ORINJURED.SUPT.MEMOPROVIDESGUIDELINES FORLLRTDURINGTHEREMAINDER OFTHEU2FRO.(PLIS23922)CLOSEDCONTAMINATED
'OILDRIPPEDFROMRHRVLV558WHILEBEINGMOVED PMIS.4910/02/95SUSQUNNASESSOORSUMMARYREPORTFORSYS49-UNIT.2SORTEDBYUNIT,ISSUEDATE&SOORNPMI5PAGE15SYSBOORNOCCURDATEI'ESCRIPTION 492-86-132492-86-136492-86-139492-86-147492-86-153492-86"169OTHERAFFECTEDSYS:34492-86-171492-86-239492-86-181492-86-2078/25/869/05/869/07/869/18/869/25/8610/08/8610/12/8610/13/8610/24/8611/20/86FROMRXBLDG683'OTHEDECONSHOP.13INDIVIDUAL PERSONNEL CONTAMINATION REPORTSWEREWRITTENASARESULT.ATRANSFERCARTSUITEDFORVAI,VESHASBEENFABRICATEO.
CLOSEDSPILLOFAPPROX100GALCONTAMINATED WATERDURINGWORKONRHRPUMPDISCHARGE FLOWORIFICEREPLACEMENT.
ONEPERSONWASCONTAMINATED ANDWASDECONNED~ASWASTHEWORKAREA.ORIGINOFTHEWATERCOULDNOTBEDETERMINED.
CLOSEDRADIOGRAPHY OFRHR178VALVECAUSEDVENDORTORECEIVE170MRWHOLEBODYEXPOSURE.
CAUSEDBYAFAULTYCAMERAMECHANISM COMBINEDWITHANON-FUNCTIONING SURVEYMETER,(OWNEDBYU.S.TESTiNG).
HP-HI-048 ISSUEDTOASSISTINPREVENTION OFRECURRENCE CLOSEDRHR'D'UMPSEALWATERCOOLERSPOOLPIECEMISSINGAREVIEWOFWORKDOCUMENTS COULDNOTDETERMINE HOWSPOOLWASREMOVED.SYSTEMWASRESTORED.
MAINTSUPERVISORS REVIEWEDEVENT,REFPLIS24951.CLOSEDRHRLPCIPUMPPRESSUREHI~PS-E11-2N020A FOUNDOUTOFTOLDURINGSI-249-303, CAUSEDBYSETPOINT, DRIFT,ANDWERERE-CAL'ED REFSAA63204CLOSEDHPCISTEAMSUPPLYPIPINGBECAMEPRESSURIZED DURINGRHRTESTINGRHRVALVES2F051A652AWEREVERIFIEOINTHECLOSEDPOSITIONBUTARESUSPECTED OFLEAKING.REF:PMR867033634CLOSEDSWITCHGEARROOMCOOLINGINOPCAUSINGALLECCSTOBEINOP'A''8'XUNITOUTOFSERVICEFAN2V2228WOULDNOTSTART.ELECMAINTINVESTIGATED PERWAV61096~-WHENDXUNITWASRESETACONTROLROOMPANEL,THE'8'ANSTARTED.SI-251-401 ANDSI280403REVISEDTOALERTSHIFTSUPERVISION OFOXAUTOSTARTLOGIC.CLOSEDRHR2F008VALVECLOSEDWHENSWAPPINGSHUTDOWNCOOLINGPUMPS.(MASTERSOORFOR1-84-138)
APARTIALSYSDRAINDOWNOCCURREDRESULTING INAWATERHAMMERUPONRESTART.THEISOLATION CONSTITUTED ANESFACTUATION.
OPSPERSONNEL REVIEWEDTHEEVENT.CLOSEDRHRHV-251-F015A REWORKEDW/0STROKETIMETESTINGPERFORMED.
WAV645496WAV63141.AD-QA-302 REVISEDBYOPS.TOUSESURVEILLANCE PROCEDURES TOINSUREAPPLICABLE VALVESARETESTEDFOLLOWING MAINTENANCE.
OPSHOTBOXTRAINING87-07REVIEWEDTHEEVENT.PCAF1-87-0584 ISSUEDTOAD-QA-502 TOPROVIDECONTROLSFORREPACKEOVALVES.CLOSEDRHRPIPINGHANGERDAMAGEDFROMWATERHAMMER WHICHOCCURREDWHILEATTEMPTING TOSEATACHECKVALVE.OPSTOREVIEWEVENTANDCONTACTTECHPRIORTOATTEMPTING ASIMILARACTIONOFSEATINGVALVES.PCAF'SINITIATED FORGO-100/200-002.
REFNSAGREPORT187.OPERATORTRAININGONWATERHAMMER, SC038HASBEENDEVELOPED.
CLOSED'8'HRPMPFAILEDTOiSTARTWHILEALIGNING'8'OOPRHRINSUPPPOOLCOOLINGNIUVI=FDRUPCOMINGRCICRUN.4KVBKRWASNOTRACKEDCOMPLETELY INTOPLACE.WAV61285INVESTIGATED.
THEBKRWASRACKEDOUTTHENBACKIN.'8'HRPUMPTHENSTARTEDPROPERLY.
SAFTYRELATED4KVBKRLOADSTOBETESTEDFOLLOWING BKRRACKIN"CLOSED PMIS:E4910/02/95SUSQUENNASESSOORSUMMARYREPORTFORSYS49-UNIT2SORTEDBYUNIT~ISSUEDATEdSOORNPMISSYSSOORN492-87-03649287045492-87-092492-87-107492-87161OCCURDATE3/08/87DESCRIPTION 12/17/87RHRFLOWFi-25105FAILEDTOINDICATEDURING50-200-001 CAUSEDBYALOOSEWIREONTERMINAL14OFSRU03,WAV76326CORRECTED.
CLOSED3/23/87'8'HRPUMPFAILEDTOSTARTDURING50-249"002, (2P20281DUETOOPENBREAKERCONTACTSCAUSEDBYSTICKYOILRESIDUEONTHEOPERATING LINKAGE.WAV70163CORRECTED.
MT-GE-006 REVISEDTOELIMINATE LUBRICANTS.
CLOSED~q6/21/87RHRF024AWOULtINOTELECTRICALLY, OPENFULLYDURINGSUPPRESSION POOLCOOLINGLINEUPDUETOFAILUREOFTHEMOTORPINIONGEAR.WAV70299REPAIRED.
CLOSED>a~i."~<<~p~qeyeg~~~~~;~~ivi..~-~"~a"-.'".':,~
rV.:<~..p.=<<qp,7/13/87RHR'8'ULLFLOWTESTVALVE2F0248INOPERATIVE CAUSEDBYALOOSESTEMANTI-ROTATION DEVICE.WA V73632CORRECTED.
AREVIEWWASMADEOFNCR'S82-911d82-1071WHICHHADID'DADDITIONAL VALVESTOBEINSPECTED FORTHISCONDITION dWA'SHAVEBEENISSUED.NPEISSUEDEWRM79457WHICHLISTSVALVESSUBJECTTOTHISPROBLEM.PM'SHAVEBEENGENERATED FORALLAPPLICABLE VALVESCLOSEDRHRHV2F0288TRIPPEDOVERLOADS ONTWO.ATTEMPTS TOOPENTOPERFORM50-249-002.
WAV70827INVESTIGATED ANDFOUNDTHEVALVEMOTORTOBEINOPERABLE ANDREPLACEDIT,.CLOSED-j~g4'~=~492"88-036492-88-069492-88-079492-88-086OTHERAFFECTEDSYS:492-88-096492-88-097492~88-098~tI'/05/883/19/883/29/884/08/884/19/884/19/884/19/88AUTOCLOSUREOFTHERHRSHUTDOWNCOOLINGVALVEF009OCCURREDDURINGOP-249-002.
IdcINVESTIGATION FOUNDPDIS-E11-2N019A INOPANDRE-CAL'ED PERWAA80992.CLOSEDRHRMINFLOWVALVEF007ACONTROLCIRCUITDIDN'TOPERATEPROPERLYINTHATITOPENEDIMMEDIATELY, RATHERTHANAFTERATIMEDELAY.DETERMINED CAUSEWASFAULTYOPERATION OFRELAYE11-K84AWHICHWASREPLACEDPERWAV80280.THISISMASTERBOORFOR2-88-144WAV80363INSPECTED RELAYE11-K84AWITHNODRIFTNOTED.CLOSEDFUSEF168WASFOUNDINSTALLED IN20612WITHAREDTAGHANGINGONTHEFUSEHOLDER.FUSEWASINSTALLED ANDVERFIEDON3-21-88TOCLOSEPERMIT2-88-720WHILEANOTHERPERMIT,2-88738WASSTILLINEFFECTWITHIT'SREDTAGHANGINGONTHEFUSEHOLDER.THEEVENTWASREVIEWEDDURINGOPSSOA88-05.CLOSEDWORKERSNOTICEDTHATAJUMPERWASDISCONNECTED INPANEL20617.INVESTIGATE FOUNDTHATTHEJUMPERWASINSTALLED FORUSEDURINGALLRTTEST.ITCOULDNOTBEDETERMINED IFTHEJUMPERHADBEEN'BUMPED'FF BYTHEWORKERORIFITWASOFFPRIORTOTHEIRWORK.ENG..SUPPORTUSE'S"WILLBEREVISEDTOUTILIZEBANANAJACKS.TECHREVIEWEDALLPENSSURV'SANDISSUEDWA'STOINSTALLBANANAJACKS.CLOSED'A'HRPUMPDIDNOTSTARTASEXPECTEDDURINGSE-249-001.
DETERMINED CAUSEWASIMPROPERLIMITSWITCHSET-UPINHV261F004A.WAV80366CORRECTED.
CLOSED'A'HRPUMPUNEXPECTED STARTDURINGSE-249-001.
THETESTWASSTOPPEDTOADJUSTVALVELIMITSWITCHFORHV-251F004A.
THISCAUSEDINITIATION LOGICTOSEALINANDWASNOTRESETPRIORTORESTARTING THETEST.~C/&#x17d;CLOSEDRHR2F024AVALVEPINION'ECAME DISCONNECTEDFROQ THEMOTORSHAFTANDMECHANICAL DAMAGERESULTED.
CONDITION WASFOUNDDURINGPER-FORMANCEOFSE-249-001.
WAV83644ANDV80409REPAIRED.
PMIS:ER4910/02/95SUSQUEANNASESBOORSUMMARYREPORTFORSYS49-UNIT2SORTEDBYUNIT~ISSUEDATE&SOORPMISPAGE17SYSSOORNOCCURDATEDESCRIPTION 49288099492-88-102OTHERAFFECTEDSYS1492-88-107492-88-109492-88-112492-88-125492-88-144492-88-156~492-88-201492-88-216492-89-023492-89-0314/20/884/22/884/22/884/25/884/27/885/16/886/11/886/21/888/12/889/07/882/28/893/04/89CLOSED'A'HRPUMPINADVERTENT STARTDURINGSE-251-001.
APPARENTCAUSEWASDURINGJUMPERINSTALLATION, WHENTERMINATION CCC3-7WASCONTACTED, ENERGIZING RELAYSE118ANDK2018.AGUIDELINE HASBEENESTABLISHED FORJUMPERINSTALLATION DURINGTP'SANDSE'S.CLOSEDRHRSERVICEWATER'8'OOPRADMONITORLOSTPOWER,CALIBRATION VALUESWERELOST.CONDITION WASFOUNDATTHESTART-OFSC-216-104.
MONITORISPOWEREDBY2Y219CIRCUIT28,ANYINTERUPTION WILLCAUSETHESETPOINTVALUESTOBELOST.RHRWASNOTINSERVICETHEREFORE MONITORSWERENOTREQUIRED.
POWERWASRESTOREDANDSETPOINTS WEREENTERED.CLOSEDINCORRECT WIRETERMINATION ONRHRLOGICRELAYK958,SUSPECTPMR87-9092AWHICHHADBEENWORKEDDURINGTHE2RFIO.CWOC80418CORRECTED THEWIRINGERROR.INVOLVEDPERSONNEL REVIEWEDTHEEVENT.CLOSEDRHR'A'ONDUCTIVITY RECORDERWASDISABLEDDUETOBREAKEROUTAGEFORCLEANING'X260.
OPSREVIEWEDTHEEVENTWITHPERSONNEL DURINGAGENDA88-03.CLOSEDRHRRELAYE11A-K11A CONTACTS364DIDNOTCLOSEDURINGSURVSE-249-002, (RHRDIV2LSFT).INVESTIGATION FOUNDTHERELAYWASENERGIZED, HOWEVERCONTACTS384WOULDNOTMAKE-UP.WAV80393CLEANED=ANDINSPECTED CONTACTS.
CLOSEDREATORPRESSUREPS-821-2N018 FOUNDOUTOFTOLERANCE DURINGSURVSI-249-304 ANDWASRECALIBRATED PERTHESURVEILLANCE.
THECONDITION WASCAUSEDBYSETPOINTDRIFT.PMR867027WILLREPLACETHESWITCHES'LOSED RHRMINFLOWF007AOPENEDIMMEDIATELY DURINGSHUTDOWNCOOLINGINITIATION.
WAV80280REPLACEDSUSPECTRELAYE11-K84A.
WAV80363WILLTEST.WAV80558INSTALLED
.MONITORING EQUIPMENT PERTECHENGREF:MASTERSOOR2-88-069CLOSED2DRHRPUMPWASRUN4HOURSWITHOUTESWCOOLINGWATERALIGNED.THE'8'SWPUMPWASSTARTEDRATHERTHANTHE'A'R'O'SREQUIREDBYOP-249-005.
RHRUPPERBEARINGSREACHEDTEMPSINEXCESSOF200F.OPSREVIEWEDTHEEVENTDURINGSOA8804.CLOSEDRHRPIS-831-2N018A SW111FOUNDOUTOFTOLERANCE DURINGSURVSI-249-304 ANDWASRECALIBRATED PERTHESURVEILLANCE.
CLOSEDSAFETYEVALUATION FORPMR87-9092AMAYNOTBEADEQUATEREVIEWREFNCR88-0610WHICHCONCLUDED THATUNREVIEWED SAFETYQUESTIONS DONOTEXIST.REFPLI57015AND54445.CLOSEDRHRMINFLOWVALVEF007AOPENEDDURINGSHUTDOWNCOOLINGINITIAT-ION.REFSOOR2-89-037FORCORRECTIVE ACTIONS.CLOSEDTERMINATIONS E203062A-.8 8WERENOTPROPERLYLANDEDIN28216022THECONDITION WASFOUNDDURINGINVESTIGATION FORWAV90105.THETERMINATIONS WEREINCORRECT ASARESULTOFPMR87-30258.
THEMODWASCANCELLED ANDASARESULTSCHEMECHECKSWERENOTISSUED.WAV90105CORRECTED THECONDITION.
PMIS.4910/02/95SUSQNASESBOORSUMMARYREPORTFORSYS49-UNIT2SORTEDBYUNIT,ISSUEDATEdSOORNPMISPAGE18SYSSOORNOCCURDATEDESCRIPTION OTHERAFFECTEDSYS:49289037492-89-128OTHERAFFECTEDSYS:492-89-139492-89-165OTHERAFFECTEDSYS:49289171OTHERAFFECTEDSYS:83G76D49289-173OTHERAFFECTEDSYS49.2"89-177OTHERAFFECTEDSYS:.492-89-186OTHERAFFECTEDSYS:51492-89-197OTHERAFFECTEDSYS:492-89-2073/15/899/18/899/22/8910/16/8910/21/8910/23/8910/25/8910/31/8911/06/8911/18/89CLOSEDF007AMINFLOWVALVEOPENEDDURINGSHUTDOWNCOOLINGALIGNMENT.
APPARENTCAUSEISTS-E11-1N021A OPENINGONINCREASING FLOW~PMR89-9069d60WEREINITIATED.
REFMASTERBOOR1-89-007CLOSEDPSV251F030D FAILEOTOLIFTATDESIREDPRESSUREVALVEWASDISASSEMBLED TODETERMINE CAUSEOFFAILURE,VLVSTEMFOUNDDAMAGED,POSSIBLYDUETOIMPROPERGAGGINGOFPSV.DURINGWAF91676PSV251F029WASFOUNDTOHAVEABENTSTEM.REFMASTERSOOR2-89-197CLOSEDRELIEFVALVEPSV251068 GAGGEDINCORRECTLY DURINGWAV84271REFLLRT101,SE249-311.INADEQUATE WORKCONTROLANDPROCEDURES WASTHEDETERMINED CAUSE.SE-250-310 AND311WEREREVISEDTOPROVIDEPROPERDIRECTION.
REFMASTERBOOR2-89-197CLOSEDSMALLCONTAMINATED SPILLDURINGRHRLOGICFUNCTIONAL SE-249-001 DUETOVENT261077BEINGOPENFORLLRTINVESTIGATION OFLEAKAGEPASTTHE2F016A.DETERMINED CAUSEWASALACKOFCOMMUNICATION BETWEENALLPERSONNEL INVOLVEDINTHETEST.OPSREVIEWEDTHEEVENTDURINGSOA90-01.CLOSEDRHRTSH-E11"2N6008 WASFOUNDOUTOFTOLERANCE DURINGSURVSI-249-306 AND-WASRECAL'EDPER-THESURVEILLANCE.
CLOSED'8'ND'D'HRSUCTIONRELIEFVALVESWEREFOUNDLIFTEDFOLLOWING INITIATION OFSHUTDOWNCOOLING.DETERMINED CAUSEWASTHELIFTINGDISCCONTACTING THEMANUALACTUALTION SHAFT.REFMASTERSOOR2-89-197CLOSED'O'HRPUMPWOULDNOTRESTARTDURINGPERFORMANCE OFSE-224-002 WHENTHE4KVBREAKERWASRACKEDOUTANDTHENBACKIN,THEPUMP-STARTED.
CLOSED7VALVESHADPACKINGTIGHTENED W/0ERF'SSUBMITTED PRIORTOWORK=THISRESULTEDINDECLARING 3OUTOF7AVAILABLE LOWPRESSUREECCSSYSTEMSINOPDUETOSTROKETIMESBEINGUNKNOWN-THECAUSEWASAFAILURETOFOLLOWTHEACTIVITYWORKPLAN.
MAINTREVIEWEDTHEEVENTDURINGVALVETEAMTRAINING.
PENSREVISEDSE-100/200-002 TOENSUREMNTCOMPLIESWITHAD-QA-306 PRIORTOWORKINGANYCOMPONENTS.
PORCACTIONITEMINITATED, BOORCLOSED.'8'HRPUMPSUCTIONRELIEFVALVELIFTEDDURINGSYSALIGNMENT.
REPEATOCCURRENCE, REFSOOR2-.89-173.THELIFTINGDISCANDCASTLENUTWEREFOUNDNOTPROPERLYJAMMEDALLOWINGTHEDISCTOVIBRATEDOWNTHESHAFTTHREADS.MNTADJUSTEDPSVPROGRAMPROCED.CLOSEDCORESPRAYANDRHRTESTABLECHECKVALVESFAILEDTESTREQUIREMENT FORLEAKAGE.THETESTWASREPEATEDANDSATISFACTORY RESULTSWEREOBTAINED.
GO-100(200)-002 CHANGED>REF.PCAF'S190-0450d2"90-0193 PMIS:4910/02/95SUSQUNASESBOORSUMMARYREPORTFORSYS49-UNIT2SORTEDBYUNIT,ISSUEDATE&SOORllPMI.SSYSBOORllOCCURDATEDESCRIPTION OTHERAFFECTEDSYS:51492-90.-019 OTHERAFFECTEDSYS:492-90-021OTHERAFFECTEDSYS:492-90-076OTHERAFFECTEDSYS:54492-90-165OTHERAFFECTEDSYS:49*2-91-009.OTHERAFFECTEDSYS:492-91-024OTHERAFFECTEDSYS:49291049OTHERAFFECTEDSYS:492-91-062OTHERAFFECTEDSYS:492-91-091OTHERAFFECTEDSYS:492-91-112OTHERAFFECTEDSYS:2/06/902/11/908/29/9012/18/901/08/912/07/913/10/913/10/914/12/91'/23/91CLOSEDRHRCROSSTIERELIEFVALVEPSV-25193 LIFTEDANDWOULDNOTRESEATDURINGATTEMPTSTOFLUSHRHRPIPING.THEVALVEWASREWORKEDPERWAV03106.REFMASTERBOOR2-89-197.CLOSEDRHRTESTABLECHECKVALVEHV-251-F0508 INDICATION NOTFULLOPENDURING50-249-014.
DETERMINED CAUSEWASWORNSEALSONTHEAIROPERATORUNEEPACSEALSANDTHEUPPERSEALS.WAV03223REPLACEDTHESEALS.CLOSEDESWLEAKFOUNDATTHE'O'HRPUMPMOTOROILCOOLER.CAUSEDBYHOLEINCOPPERTUBINGATTRIBUTED TOUNDER-DEPOSIT LOCALPITTING,NOTBYASFIRSTIMPLICATED.
MICROBIOLOGICALLY INFLUENCED CORROSION WHICHSHUTDOWNUNITDUE.TOGENERICIMPLICATIONS.
ALLRHRPUMPSHADTHEIRCOOLERSREPLACED.
OTHERSAFETYRELATEDHEATEXCHANGES WEREINSPECTED FORSIMILARCONDITIONS.
NOPROBLEMSWEREFOUND.REFSPECH-1004ANDPLAS432REFNCR90-0114.CLOSEDRHRTSH-E11-2N600A WASFOUNDOUTOFTOLERANCE DURINGSI-249-306.
THESWITCHWASREPLACEDPERTHESURVEILLANCE.
CLOSEDINADVERTENT ISOLATION OCCURREDTORHRSDCINBOARDISOVALVEDURING16CWORKACTIVITIES TOREPLACEPERMISSIVE PRESSSWITCHPIS-821-2N018A.
REF.WAV16020PLANNERSGUIDEWASREVIEWEDBYI6CASSISTFOREMAN.EXTENSION TOPOSTCYC25APPROVEDBYPORC92-168.ECO93-6041INSTALLED WIRINGINT8-2000682.
CLOSEDPOSITIONINDICATION FOR'O'HRPUMPBREAKERWASLOST.WAV10119INVESTIGATED ANDFOUNDASPRINGCLIPHADFALLENFROMTHEBREAKERLINKAGEANDALLOWEDTHELINKAGETOSEPARATE.
ACLIPWASINSTALLED ANDTHEBREAKERSTROKEDSAT.CLOSEDPSV-251-F030C LIFTEDSEVERALTIMESWHILEFILLINGANDVENTOFTHE'A'OOPINPREPARATION FORSHUTDOWNCOOLING.REFMASTERSOOR1"90-259CLOSEDBOTHLOOPSOFLPCIWEREINOPATTHESAMETIMEWHILEPLACINGRHRINTOSHUTDOWNCOOLINGMODE.CLOSEDSNUBBERNOTISTALLEDON'A'ECIRCPIPINGASREQUIRED.
RHRSHUTDOWNCOOLINGDIVIWASREQUIREDTOBEOPERABLE.
THESNUBBERWASREMOVEDVIAWAY00350ANDTOBERE-INSTALLED PERWAY00155WHICHWASCLOSEDWITHOUTINSTALLING THESNUBBER.THESNUBBERWASREPLACEDPERWAY00294.CLOSEDRHRDISCHARGE RELIEFPSV-251-F025A FOUNDLIFTED.INVESTIGATION COULDNOTDETERMINE ACAUSE.REFWAV13549.CLOSED PMI4910/02/95~SUSQNNASESSOORSUMMARYREPORTFORSYS49-UNIT2SORTEOBYUNIT~ISSUEDATE&SOORIIPMISPAGE20SYSSOORNOCCURDATEDESCRIPTION 492-91-159OTHERAFFECTEDSYS:492-91-171OTHERAFFECTEDSYS:492-92-007OTHERAFFECTEDSYS1492-92"020OTHERAFFECTEDSYS:492-92-032OTHERAFFECTEDSYS:492-92-033OTHERAFFECTEDSYS:492-92-026OTHERAFFECTEDSYS:64492-92-095OTHERAFFECTEDSYS:492-92-108OTHERAFFECTEDSYS:~492-92-118OTHERAFFECTEDSYS:6/13/917/09/911/21/922/24/923/19/923/19/923/23/929/13/929/26/9210/07/92RHRSUCTIONPRESSUREGAUGEROOTVALVESWEREFOUNDCLOSED.THEVALVEWEREPLACEDINTHEIRPROPERPOSITION.
INVESTIGATION COULDNOTDETERMINE HOWTHEVALVESGOTCLOSED.LRF91-249-231 WASISSUED'EF DCN91-2331.CLOSEDROOTVLVOP1-PI-2R0038 WASFOUNDCLOSEDVS:OPENASREQUIREDBYCL-249-0015.
FOUNDDURINGSO249-002.ROOTCAUSECOULDNOTBEDETERMINED.
THEVALVEWASRESTOREDTOTHEOPENPOSITION.
OPSANDI&CREVIEWEDTHEEVENT.CLOSEDRHRSI-249-306 FOUNDTE-E11-2N009A DEFECTIVE d2N600AOUTOFCALWAV26047REPLACEDTHEMETERMODULEINTH1;INDICATION CIRCUIT,.
WAV26025REGAL'EDTSH-E11-2NBOOA.
CLOSEDWORKERNOTICEDTHAT2BOLTSWEREMISSINGFROMRHRFLANGEWHEREFLOWORIFACEFO-E11-20001-82 WASCONNECTED.
MAINTWASCONTACTED ANDTHEMISSINGBOLTSWEREINSTALLED PERWAV23106NOCAUSECOULD'BEDETERMINED FORTHEABSENSEOFTHEBOLTS.CLOSED.PSV-251-F029 LIFTEDDURINGLINEUPFORSHUTDOWNCOOLING.VALVERESPONDED PERDESIGNTOOVERPRESSURECONDITION LIKELYCAUSEDBYACCOUSTIC HYDRAULIC EXCITATION.
REPLACEMENT OFTHEVALVEISPLANNEDASPARTOFTHERELIEFVLVUPGRADEPROGRAM.CLOSEDPSV-251-F025A APPARENTLY LIFTEDDURINGSHUTDOWNCOOLING.WAV23161INVESTIGATED, THEVALVEBODYWASLIGHTLYTAPPEDANDTHEVALVERESEATED.
CLOSEDBKR28226062,
: 28216053, 28237043d28237043A NOTEQ,NCR92-049.ERF'SANDWAISWRITTEN.THEBREAKERSINCUBICLES28216053AND28226062WEREREPLACED.
EQAR-023ANDEQDF-48ISBEINGREVISEDTOSPECIFYTHEREQUIREDSUPPLIEROFTHECIRCUITBREAKERS.
CLOSEDFLOWTHRURHRCHECKVLVF031A/F046A LIFTED'A'UCTION RELIEFPSV-251-F030A.
THE'A'HRPUMPANDASSOCIATED LPCIFLOWPATHWERESUBSEQUENTLY DECLAREDINOPDUETOTHENEEDTO,ISOLATEAPOTENTIAL RXVESSELDRAINPATH.REFWAV20523.MNTREPAIREDF046APERWAP23099.CLOSEDESFACTUATION'WHEN RHROUTBOARDISOLATION HV-251-F008 CLOSEDDURINGSHUTDOWNCOOLING.'8'HRPUMPHADTRIPPED.REFPLA541.DEFECTIVE RELAYBASEON821HK94WASREPLACEDBYWAV20623.CLOSED'A'HRPUMPFAILEDT~~TDURINGSYSTEMRESTORATION FOLLOWING OUTAGEACTIVITIES.
ATBREAKER2A20101,AFLAGWASUPONTHE'A'HASE50/51RELAY.DETERMINED CAUSEOFTHISEVENTWASANIMPROPERLY ADJUSTEDLIMITSWITCHFORHV251F004A, RHRPUMPSUCTION.THEACTUATORWASINSPECTED/ADJUSTED PERMT-GM-050.
THEVALVEWASTESTEDSAT.MT-GM-050 REVISEDTOENSURECORRECT4TRAINLIMITSWITCHPOSITION.
CLOSED2.
PMIS.4910/02/95SUSQNNASESSOORSUMMARYREPORTFORSYS49-UNIT2SORTEDBYUNIT,ISSUEDATE6SOORNPMISPAGE21SYSSOORN492-92-126OTHERAFFECTEDSYS:492-92132OTHERAFFECTEDSYS:69492-92-133OTHERAFFECTEDSYS:54993460OTHERAFFECTEDSYS:4993-458OTHERAFFECTEDSYS:4993-461OTHERAFFECTEDSYS:4993-467OTHERAFFECTEDSYS:4994-175OTHERAFFECTEDSYS:4994-241OTHERAFFECTEDSYS:4994-240OCCURDATE10/15/9210/26/9210/26/9212/11/9312/19/9312/21/9312/21/933/15/944/02/944/07/94DESCRIPTION RELIEFVALVEONTESTPUMPBLEWOFFDURINGSE-249-202.
PRESSUREWASAT800PSI.WORKERWASDRENCHEDWITHWATERBUTNOTCONTAMINATED.
THETESTSKIDWILLBEREWORKEDTOELIMINATE COMPRESSION FITTINGSONRELIEFVALVES.CLOSEDLOOSETERMINATION ONTERMINAL81OFRELAY821H-K59CAUSEDTHERELAYTODE-ENERGIZE.
OCCURREDDURINGPCISTESTINGUNDERSE-269-200 FORDCP92-9006.CLOSED.SHUTDOWNCOOLINGVALVESISOLATEDDUETOGROUNDEDLEAD,ESFACTUATION.
HV-261F009 ANDHV-251F015A CLOSED.ERTREQUIRED~DETERMINED CAUSESWERE:1)LEADWASNOTTERMINEATED.
2)INVOLVEDPERSONNEL DIDNOTPLANFOREVERYPOSSIBLEFAILURE.3)TIGHTWORKSPACE/PHSICALLY DIFFICULT.
REFPLAS648.CLOSEDRHRHV-251-F0038 FAILEDTOOPENFOLLOWING CLOSUREWHILEINSDC.SiTHEVALVEWASCLOSEDBECAUSECOOLDOWNRATEWASTOOHIGH.OPSINVESTIGATION FOUNDTHEVLVBREAKERTHERMALSHADTRIPPED.DETERMINED CAUSEWASTHERMALBINDING'P-149/249-002 WEREREVISEDTOPREVENTRECURRENCE.
CLOSEDVACUUMSUCKEDVLVBONNETFORHV-261F0038 BACKONTOVLVBODYDURINGWAV33836BREACHANDDISASSEMBLY ONTHERHRSYSTEM.THEBONNETWASRE-INSTALLED TOTERMINATE THEVACUUMLEAKAGE.ERTREQUIRED.
NDAP-QA-0302 REV3ISSUED.OPSREVIEWEDTHEEVENT.MAINTREVIEWEDTHISEVENTWITHMAINTPLANNERS.
CLOSEDRHRRADWASTEVENTVLV261-811FOUNDUNCAPPEDCONTRARYTOCLWHICHREQUIRESITTOBECAPPED,CL-249-0018.
PROBABLECAUSEWASDURINGFILLANDVENTEVOLUTION.
OPSWILLREVIEWTHISEVENT.MOATRAININGCYCLE94-1COMPLETE.
CLOSEDPOTENTIAL STATUSCONTROLEVENTWHENWRONGDIVRHRCLIMPLEMENTED ROOTCAUSEOFTHISOCCURRENCE WASOPERATORERROR.ANINDEPENDENT VERIFICATION WASPERFORMED.
MOA94-1REVIEWEDTHISEVENTSSOOR93-201WILLADDRESSVALVELOCKINGPOLICY/METHODS'LOSED HANDWHEEL FORRHRLOOPAINBOARDINJECTION TESTVLVOFFOFSTEMSFOUNDONGRATING.VLV251063.CONDITION WASFOUNDDURINGINITIALDRYWELLENTRYFOLLOWING SHUTDOWN.
INVESTIGATION FOUNDTHEVALVESTEMHADFAILEDDUETOHIGHSTRESSLOADINGANDPOORDESIGNSTHEVALVEWASREPLACEDWITHADIFFERENT DESIGNPERWAV43319RIE940081.CLOSEDMATERIALCUTFROMPIPEHANGERCLAMPW/0WORKINSTRUCTIONS ORENGINERINGANALYSIS.
HANGERGBB-205-H89
~WAV43467.HEDETERMINED CAUSEWASMIS-INTERPRETATION OFTHEWORKPLANBYTGROUPFOREMAN.NCR94-079,CALEC-049-1007
'SE-AS-IS DISPO.MAINTCONDUCTED TRAININGONTHEEVENT.CLOSEDSCAFFOLDING INTERFERED WITH'8'HRDISCHCHECKVALVECLOSING.SCAFFOLDING BUILTNEARTHE'8'UMPDIDNOTALLOWTHECHECKVALVEHANDLETOSWINGFULLYINTHECLOSEDPOSITION.
TRAININGWASCONDUCTED FORTHE'DRAIN'REWS.  


PMIS:EVR4910/02/95SUSQUEHANNASESSOORSUMMARYREPORTFORSYS49-UNIT2SORTEDBYUNIT,ISSUEDATE6SOORNPMI5PAGE22SYSBOORNOCCURDATEDESCRIPTIONOTHERAFFECTEDSYS:4994245OTHERAFFECTEDSYS:60,624994-249OTHERAFFECTEDSYS:4994-254OTHERAFFECTEDSYS:4994-266OTHERAFFECTEDSYS:4994-283OTHERAFFECTEDSYS:4994-356OTHERAFFECTEDSYS:4994-366OTHERAFFECTEDSYS:4/08/944/10/944/10/944/17/944/29/945/29/946/04/94CLOSEDFLOORDRAINSBACKEDUPWHILEDRAININGDIVIiRHRUSINGFLOORDRAINSINTHRRHRPIPEWAY.HPCIANDRCICROOMSWERECONTAMINATED'00SQFEET,LVLWASBKWET.REFACR94-10.THEDRAINBLOCKAGEWASCLEARED.01-AD-055REV8INCLUDESDIRECTIONTOMONITORFLOORDRAINSDURINGDRAININGEVOLUTIONS.CLOSEDWATERLEAKEDFROMRHRHV"251-F050APRESSURESEALRESULTINGINDRYWELLAREACONTAMINATION.400SQFEET,LEVELSWERE20,000DPMWET.REFACR94011.DETERMINEDCAUSEWASWHENTHEVALVEBONNETWASRAISEDUNEVENLYINTHEINITIALRE-INSTALLATION,RESULTINGINITBEINGCOCKED1/4INCH.PROPERADJUSTMENTWASMADE,.CLOSEDDURINGLLRTDRAINVLV251018WASFOUNDOPENVS:CLOSEDASREQUIREDBYTHELLRTLINEUP.THEVALVEWASOPENED-BYOPSTOSUPPORTDRAININGOFTHERHRSYSTEM.THELLRTTAGWASNOTNOTICEDBYTHEOPERATOR.CORRECTIVEACTIONTRACKEDUNDERSOOR94-245.CLOSEDPOTENTIALEXISTEDFORHIGHFLOWISOLATIONFOLLOWINGSE-249-203DUETOVALVECONFIGURATIONONINSTRUMENTATION.THESUPPLYVLVSTOTHESWITCHESWEREOPENEDPRIORTOTHEROOTVALVESBEINGOPENED.PCAF'5WEREISSUEDTOTHEAPPROPRIATE'SE'ROCEDURESTOPREVENTRECURRENCE.CLOSEDAMBERLIGHTFORHV-251-F049BLEWWHENHSS-25111AWASPLACED.INTHEEMERGENCYPOSITIONDURINGTP-200-'010.THEBULBWASREPLACEDANDTHEEVENTWASREPEATED.TPWASHALTEDANDINVESTIGATIONINITIATED.DMGUPDATEDRSPSCHEMATICSTOREFLECTCORRECTRESISTANCEVALUES.CLOSED.86DRHRPUMPDISCHARGECHECKVALVESNOTSEATINGTOMAINTAINKEEPFILLPRESSURE:CONDITIONFOUNDDURINGRESTORATIONOFSE-224-207'HEA6CRHRCHECKVALVESWEREFOUNDNOTCLOSEDDURINGPREPARTIONFORTHEVESSELHYDRO.INVESTIGATIONFOUNDTHEVALVEDISKSTOPSWERETOOSHORT,VENDORERROR.PORC94-136REVIEWEDRESO.REFPLI78723.'.ACT:TRNG-INCLUDETHISEVENTINENGRCONTINUINGTRAININGMNTSAIE06393.TRNGSAIE06395~REVIEWRIEPROCEDURES.RHRKEEPFILLISOLATEDWITHOUTTAXINGPUMP4XVMOTORBKRSOOS,RESULTINGINCONFIGWITHPOTENTIALFORWATERHAMMER.THEDCKNIFESWITCHESWEREOPENEDANDYELLOWTAGGEDTOPREVENTPUMPSTART.PCAF1-95-1016REVISEDNDAP-QA-0323N.ACT:CMPL-CLOSUREr22TOTAL:105  
PMIS:EVR49 10/02/95SUSQUEHANNA SESSOORSUMMARYREPORTFORSYS49-UNIT2SORTEDBYUNIT,ISSUEDATE6SOORNPMI5PAGE22SYSBOORNOCCURDATEDESCRIPTION OTHERAFFECTEDSYS:4994245OTHERAFFECTEDSYS:60,624994-249OTHERAFFECTEDSYS:4994-254OTHERAFFECTEDSYS:4994-266OTHERAFFECTEDSYS:4994-283OTHERAFFECTEDSYS:4994-356OTHERAFFECTEDSYS:4994-366OTHERAFFECTEDSYS:4/08/944/10/944/10/944/17/944/29/945/29/946/04/94CLOSEDFLOORDRAINSBACKEDUPWHILEDRAININGDIVIiRHRUSINGFLOORDRAINSINTHRRHRPIPEWAY.HPCIANDRCICROOMSWERECONTAMINATED'00 SQFEET,LVLWASBKWET.REFACR94-10.THEDRAINBLOCKAGEWASCLEARED.01-AD-055 REV8INCLUDESDIRECTION TOMONITORFLOORDRAINSDURINGDRAININGEVOLUTIONS.
CLOSEDWATERLEAKEDFROMRHRHV"251-F050A PRESSURESEALRESULTING INDRYWELLAREACONTAMINATION.
400SQFEET,LEVELSWERE20,000DPMWET.REFACR94011.DETERMINED CAUSEWASWHENTHEVALVEBONNETWASRAISEDUNEVENLYINTHEINITIALRE-INSTALLATION, RESULTING INITBEINGCOCKED1/4INCH.PROPERADJUSTMENT WASMADE,.CLOSEDDURINGLLRTDRAINVLV251018WASFOUNDOPENVS:CLOSEDASREQUIREDBYTHELLRTLINEUP.THEVALVEWASOPENED-BYOPSTOSUPPORTDRAININGOFTHERHRSYSTEM.THELLRTTAGWASNOTNOTICEDBYTHEOPERATOR.
CORRECTIVE ACTIONTRACKEDUNDERSOOR94-245.CLOSEDPOTENTIAL EXISTEDFORHIGHFLOWISOLATION FOLLOWING SE-249-203 DUETOVALVECONFIGURATION ONINSTRUMENTATION.
THESUPPLYVLVSTOTHESWITCHESWEREOPENEDPRIORTOTHEROOTVALVESBEINGOPENED.PCAF'5WEREISSUEDTOTHEAPPROPRIATE
'SE'ROCEDURES TOPREVENTRECURRENCE.
CLOSEDAMBERLIGHTFORHV-251-F049 BLEWWHENHSS-25111A WASPLACED.INTHEEMERGENCY POSITIONDURINGTP-200-'010.
THEBULBWASREPLACEDANDTHEEVENTWASREPEATED.
TPWASHALTEDANDINVESTIGATION INITIATED.
DMGUPDATEDRSPSCHEMATICS TOREFLECTCORRECTRESISTANCE VALUES.CLOSED.86DRHRPUMPDISCHARGE CHECKVALVESNOTSEATINGTOMAINTAINKEEPFILLPRESSURE:
CONDITION FOUNDDURINGRESTORATION OFSE-224-207
'HEA6CRHRCHECKVALVESWEREFOUNDNOTCLOSEDDURINGPREPARTION FORTHEVESSELHYDRO.INVESTIGATION FOUNDTHEVALVEDISKSTOPSWERETOOSHORT,VENDORERROR.PORC94-136REVIEWEDRESO.REFPLI78723.'.ACT:TRNG-INCLUDETHISEVENTINENGRCONTINUING TRAININGMNTSAIE06393.TRNGSAIE06395~REVIEWRIEPROCEDURES.
RHRKEEPFILLISOLATEDWITHOUTTAXINGPUMP4XVMOTORBKRSOOS,RESULTING INCONFIGWITHPOTENTIAL FORWATERHAMMER.THEDCKNIFESWITCHESWEREOPENEDANDYELLOWTAGGEDTOPREVENTPUMPSTART.PCAF1-95-1016 REVISEDNDAP-QA-0323 N.ACT:CMPL-CLOSUREr22TOTAL:105  


UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS0000000000000000000000000000000000000000000000.00'000000000000000000000000000000000007777777777777777777777777777777777777777777770000000000000000000000000000'00000000000000000000oq00000000,00oqo'o'POQ0000000PQOOPQPOTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTT1111111111111111111111111111111111111111111JJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO-OOOOOOOOOOOOOOOOOOOOOOOOOO0000000000BBBBBBBBBBB888888888888BeBeBBBBBeee88888888888888688888888888Be8888BBBBBBBBBBBB88888888888000000000000000000'00000000000000000000000000000000000000000000000000000000000000006666666666666lg6666666666666666666666666666666666666666666666666666666666666666666666666555555555555SSBSSSSSSSSS5555555565555556665656658555555555555555555555555555550000000000000000000000000000000000000000~00000000000000000000000'0000000000000000000888888888888888888888888888888888888888888888888888888888888888888888888888888888888JJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJOOOOOOOOOOOOOOOOOOOOOO00'0OO~OOOOOOOOOOOOOOGOOOOOOOOOOO0000000000000000000000BBBBBBBBBBB888888888888Be88BB888888BBBBBBBBBB888888888888BBBe.BBBeBBBBBBBBBBBBBBBBBBBBBBBBBEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEENNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN'NNNNNNNNNNNNNNNNNNNNN.NNNNN~-NNNNNODDDDDDDDDDDDDDDDDDDDDDDDiDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDOOOD e0 OpenandClosedConditionReportDatabySelectedSystem27-"Feb-96SearchonSystemNumber:49ForInformationOnlyCRNO.UNITSYS//EVENTDATENC?OPAFFECTED?REPORTABLE?LEVELRESOCLOSEDREPEAT.REPEATFF?FF?MPFF?MPFF?95-00511493/28/95YESNONO2RCATHEBREAKERMAGNETICTRIPSETPOINT,300AMPSPECIFIEDINE-612,SH7,REV.7FORBREAKERIB246-021ISBEYONDBREAKERTRIPRANGEOF90-270AMP.BREAKER.TRIPSETPOINTOF300MAYNOTBEACHIEVABLE.Description:SIMILARPROBLEMWASIDENTIFIEDFOR250VDCMCCBREAKERSPEREDR094-041.THEREFORE,SITEENGINEERSWEREMAKINGSURETHATSIMILARPROBLEMDOES.NOTEXISTFOR480VACMCCBREAKERS.DURINGINSTALLATIONOFSEISMICCLIPSFOR480VACMCCBREAKERIB246-021,THISPROBLEMWASDETECTED.
UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUU SSSSSSSSSS SSSSSSSSSSSS SSSSSSSSSSSSSSSSSS SSSSSSSSS SSSSSSSSSSSSSSSSSSSSS SSSSSSSSSS 000000000000000000 0000000000000000000000000000.00'000000000000000000000000000 00000000777777777777 77777777777 7777777777777777777777000000000000000000 0000000000'00000000000000000000oq00000000,00oqo'o'POQ0000000 PQOOPQPOTTTTTTTTTTTT TTTTTTTTTTTT TTTTTTTTTTTTTTTTTTTT1111111111111111111111111111111111111111111 JJJJJJJJJJ JJJJJJJJJJ JJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJOOOOOOOOOO OOOOOOOOOOOO OOOOOOOOOOOOOOOOOO-OOOOOOOOOOOOOOOOOOOOOOOOOO 0000000000 BBBBBBBBBBB 888888888888 BeBeBBBBBeee8888888888 8888688888 888888Be8888BBBBBBBBBBBB 88888888888 000000000000000000
'00000000000000000000000000000000000000000000000000000000 000000006666666666 666lg66666666 6666666666666666666 666666666666 666666666666666666666666 6666666666 555555555555 SSBSSSSSSSSS 555555556555555 6665656658 555555555555555555 55555555555 000000000000000000 0000000000000000000000~00000000000000000000000'00000000000 000000008888888888 888888888888 8888888888888888888888888888888888888888888888888888 8888888888 JJJJJJJJJJ JJJJJJJJJJ JJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJOOOOOOOOOO OOOOOOOOOOOO 00'0OO~OOOOOOOOOOOOOOGOOOOOOOOOOO000000000000 0000000000 BBBBBBBBBBB 888888888888 Be88BB888888BBBBBBBBBB 8888888888 88BBBe.BBBeBBBBBBBBBBBBBB BBBBBBBBBBB EEEEEEEEEEEE EEEEEEEEEEEE EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE EEEEEEEEEEEE NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN'NNNNNNNNNNNNNNNNNNNNN.NNNNN~-NNNNNODDDDDDDD DDDDDDDDDD DDDDDDiDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD DDDDDOOOD e0 OpenandClosedCondition ReportDatabySelectedSystem27-"Feb-96 SearchonSystemNumber:49ForInformation OnlyCRNO.UNITSYS//EVENTDATENC?OPAFFECTED?
REPORTABLE?
LEVELRESOCLOSEDREPEAT.REPEATFF?FF?MPFF?MPFF?95-00511493/28/95YESNONO2RCATHEBREAKERMAGNETICTRIPSETPOINT, 300AMPSPECIFIED INE-612,SH7,REV.7FORBREAKERIB246-021ISBEYONDBREAKERTRIPRANGEOF90-270AMP.BREAKER.TRIPSETPOINTOF300MAYNOTBEACHIEVABLE.
 
==
Description:==
 
SIMILARPROBLEMWASIDENTIFIED FOR250VDCMCCBREAKERSPEREDR094-041.THEREFORE, SITEENGINEERS WEREMAKINGSURETHATSIMILARPROBLEMDOES.NOTEXISTFOR480VACMCCBREAKERS.
DURINGINSTALLATION OFSEISMICCLIPSFOR480VACMCCBREAKERIB246-021, THISPROBLEMWASDETECTED.


==References:==
==References:==
1EquipNostIB246-02I9540691494/265YESNONODURINGPERFORMANCEOFTP-059-001,ITWASNOTEDTHATSEVERALNUTSONTHEBOTTOMSUCTIONSTRAINERSFORRHRWERENOTPROPERLYTORQUED..Description:DURINGTHECOURSEOFTP-059-001(SUPPRESSIONPOOLDEBRIS/SUCTIONSTRAINERINSPECTION),ANUTONABOTTOMRHRSUCTIONSTRAINERWASFOUNDNOTPROPERLYTORQUED.WHENTHEDIVERROTATEDTHENUT,BOTHNUTSANDTHESTUDWEREFREETOROTATE.OTHERNUTSONTHESTRAINERWERECHECKEDANDATOTALOFFIVEWEREFOUNDONTHE'A'OWERSTRAINER.
 
1EquipNostIB246-02I9540691494/265YESNONODURINGPERFORMANCE OFTP-059-001, ITWASNOTEDTHATSEVERALNUTSONTHEBOTTOMSUCTIONSTRAINERS FORRHRWERENOTPROPERLYTORQUED..Description:
DURINGTHECOURSEOFTP-059-001 (SUPPRESSION POOLDEBRIS/SUCTION STRAINERINSPECTION),
ANUTONABOTTOMRHRSUCTIONSTRAINERWASFOUNDNOTPROPERLYTORQUED.WHENTHEDIVERROTATEDTHENUT,BOTHNUTSANDTHESTUDWEREFREETOROTATE.OTHERNUTSONTHESTRAINERWERECHECKEDANDATOTALOFFIVEWEREFOUNDONTHE'A'OWERSTRAINER.


==References:==
==References:==
,WAS53415EquipNos:IF407BIF409BIF4IOBRptSystem  
,WAS53415EquipNos:IF407BIF409BIF4IOBRptSystem  


SearchonSystemNumber:49CRNO.UNITSYS//EVENTDATENC2OPAFFECTED?REPORTABLE?LEVELRESOCLOSEDREPEATREPEATFF?FF?MPFF?MPFF?NOI95-92'9.'-'vP~THE2DRHRPUMPTRIPPEDDUETOANAPPARENTMOTORBURNUP.5/8/95YESYESRCA2/8/96Description:WHENTHE2DRHRPUMP,2P202D,WASSTARTEDFORSUPPRESSIONPOOLCOOLING,APLANTOPERATORMONITORINGTHEPUMPFROMASAFEDISTANCEOBSERVEDSPARKSANDFLAMESCOMINGFROMTHEMOTORVENTLOUVERS.HEIMMEDIATELYRADIOEDTHECONTROLROOMPCOANDHADTHEPUMPSHUTDOWN.PUMPOPERATINGPARAMETERSASVIEWEDFROMTHECONTROLROOMAPPEAREDTOBENORMALDURINGTHEPERIODFOLLOWINGTHEMOTORSTART.INITIALINVESTIGATIONHASIDENTIFIEDDAMAGETOTHEMOTORWINDINGS.OILWASSEENTOBEDRIPPINGINSIDETHEMOTORCASINGONTOTHEROTORANDAFILMEXISTEDONTHEVENTLOUVERS.OILWASALSODRIPPINGFROMTHEMOTORCASINGONTOTHEFLOOR.ADDITIONALLY,PUMPGROUNDOVERCURRENTRELAYTARGET50AGHADTRIPPEDDURINGTHEEVENT.YES
SearchonSystemNumber:49CRNO.UNITSYS//EVENTDATENC2OPAFFECTED?
REPORTABLE?
LEVELRESOCLOSEDREPEATREPEATFF?FF?MPFF?MPFF?NOI95-92'9.'-'vP~THE2DRHRPUMPTRIPPEDDUETOANAPPARENTMOTORBURNUP.5/8/95YESYESRCA2/8/96Description:
WHENTHE2DRHRPUMP,2P202D,WASSTARTEDFORSUPPRESSION POOLCOOLING,APLANTOPERATORMONITORING THEPUMPFROMASAFEDISTANCEOBSERVEDSPARKSANDFLAMESCOMINGFROMTHEMOTORVENTLOUVERS.HEIMMEDIATELY RADIOEDTHECONTROLROOMPCOANDHADTHEPUMPSHUTDOWN.
PUMPOPERATING PARAMETERS ASVIEWEDFROMTHECONTROLROOMAPPEAREDTOBENORMALDURINGTHEPERIODFOLLOWING THEMOTORSTART.INITIALINVESTIGATION HASIDENTIFIED DAMAGETOTHEMOTORWINDINGS.
OILWASSEENTOBEDRIPPINGINSIDETHEMOTORCASINGONTOTHEROTORANDAFILMEXISTEDONTHEVENTLOUVERS.OILWASALSODRIPPINGFROMTHEMOTORCASINGONTOTHEFLOOR.ADDITIONALLY, PUMPGROUNDOVERCURRENT RELAYTARGET50AGHADTRIPPEDDURINGTHEEVENT.YES


==References:==
==References:==
SPECEI107WAV50299EquipNos:2P202DFLAMESEMANATINGFROMTHEPUMPMOTOR,PRESENTFORONLYAFEWSECONDS,DIDNOTREQUIREANYMANUALINTERVENTIONBEFOREDYINGOUTONTHEIROWN.THECONTROLANDTRIPDCKNIFESWITCHWASOPENEDTOPREVENTSTARTOFTHEPUMP.9542062495/11/95NONOp&#x17d;pltp~POSSIBLEPUMPSEALDAMAGEON2DRHR.Description:NOINVEST0/10/95
 
SPECEI107WAV50299EquipNos:2P202DFLAMESEMANATING FROMTHEPUMPMOTOR,PRESENTFORONLYAFEWSECONDS,DIDNOTREQUIREANYMANUALINTERVENTION BEFOREDYINGOUTONTHEIROWN.THECONTROLANDTRIPDCKNIFESWITCHWASOPENEDTOPREVENTSTARTOFTHEPUMP.9542062495/11/95NONOp&#x17d;pltp~POSSIBLEPUMPSEALDAMAGEON2DRHR.Description:
NOINVEST0/10/95


==References:==
==References:==
EquipNos:2DRHRPUMPMOTORWASREMOVEDPERMT-049-002.MT-049-001RHRPUMPDISASSEMBLY/REASSEMBLYSTEP-BY-STEPCONDITIONALWASNOTREFERENCEDANDSTEPS5.1.1PAND5.1.1DWERENOTPERFORMEDASREQUIRED.2RptSystem SearchonSystemNumber:49CR,NOUNITSYS//EVENTDATENC?OPAFFECTED?REPORTABLE?.LEVELRESOCLOSEDREPEATREPEATFF?FF?MPFF?MPFF?NOINVEST0/10/959542682496/20/95NOYES4@"%pA(c6ASFOUNDVOTESTESTOFBV=251F0278DATED6/20/95RESULTEDINFINALMEASURED.THRUST35781LBSEXCEEDINGALLOWABLELIMITOF19340LBSPERDRAWINGM-1395.SEEEWRATTACHED..Description:ANELECTRICALCALIBRATIONWASPERFORMEDINANASFOUNDCONFIGURATION.MEASUREDTHRUSTSEENWAS35781BLS.THEVOTESTESTIMMEDIATELYFOLLOWEDWITHAMAXIMUMTHRUSTOF34129LBS.(EQUIPMENTERRORNOTINCLUDED).THEALLOWABLELIMITOF19340LBSISBASEDONEXTENDEDACTUATORTHRUSTRATING.
 
EquipNos:2DRHRPUMPMOTORWASREMOVEDPERMT-049-002.
MT-049-001 RHRPUMPDISASSEMBLY/REASSEMBLY STEP-BY-STEP CONDITIONAL WASNOTREFERENCED ANDSTEPS5.1.1PAND5.1.1DWERENOTPERFORMED ASREQUIRED.
2RptSystem SearchonSystemNumber:49CR,NOUNITSYS//EVENTDATENC?OPAFFECTED?
REPORTABLE?.
LEVELRESOCLOSEDREPEATREPEATFF?FF?MPFF?MPFF?NOINVEST0/10/959542682496/20/95NOYES4@"%pA(c6ASFOUNDVOTESTESTOFBV=251F0278 DATED6/20/95RESULTEDINFINALMEASURED.
THRUST35781LBSEXCEEDING ALLOWABLE LIMITOF19340LBSPERDRAWINGM-1395.SEEEWRATTACHED..
 
==
Description:==
 
ANELECTRICAL CALIBRATION WASPERFORMED INANASFOUNDCONFIGURATION.
MEASUREDTHRUSTSEENWAS35781BLS.THEVOTESTESTIMMEDIATELY FOLLOWEDWITHAMAXIMUMTHRUSTOF34129LBS.(EQUIPMENT ERRORNOTINCLUDED).
THEALLOWABLE LIMITOF19340LBSISBASEDONEXTENDEDACTUATORTHRUSTRATING.


==References:==
==References:==
EWRM58023EquipNos:IIV251F027B3RptSystem SearchonSystemNumber:49CRNO.UNITSYSItEVENTDATENC?OPAFFECTED?REPORTABLE?LEVELRESOCLOSEDREPEATREPEATFF.FF.MPFF?MPFF795-0344149S/1185YESNONO2RCA0/12/955gI,'ftw(o'c~UgY,=,IS,IF02'PMAYBEINADEGRADEDCONDITIONBECAUSEOFPOTENTIALSIGNIFICANTOVERTHRUSTRESULTINGFROMITTIPPINGITSTHERMALOVERLOADS(REFERENCEWAS21676DATED11/25/92).INADDITION,TORQUESWITCHREPLACEMENTWASPERFORfvKDASPARTOFINVESTIGATIONANDNOPOSTMAINTENANCEVOTESTESTWASDONE.THISISINVIOLA@ONQFAD-QA-531,THEPROCEDUREINEFFECTATTHETIME.Description:DURINGAREVIEWOFHV-151F027BVALVEMAINTENANCEHISTORY,ITWASDISCOVEREDTHATTHEMOVTRIPPEDITSTHERMALOVERLOADSTWICE(REFERENCEWAS21676DATED11/25/92),INDICATINGTHATPOTENTIALSIGNIFICANTOVERTHRUSTANDOVERTiORQUE@ASOCCURRED.INANINVESTIGATION,ADEFECTIVETORQUESWITCHWASFOUND.TfgWADOCUMENTEDTORQUESWITCHREPLACEMENTWASPERFORMED;HOWEVER,THEREWAgQOEVIDENCEOFAPOST-MAINTENANCEVOTESTEST.THEDATEOFTHELATESTVOTESTESTPEQ~ORMEDOg~ISMOVIS4/18/92(WAS10396).aTWOCONCERNSEXIST1.THEMOV)MAYBEINADEGRADEDCONDITIONPECAN:.SEOFTHESIGNIFICANTOVERTHRUSTANDOVERTORQUERESULTINGFR(/II'f@PPIhPITSPfEQUALOVERLOADS.-
 
EWRM58023EquipNos:IIV251F027B 3RptSystem SearchonSystemNumber:49CRNO.UNITSYSItEVENTDATENC?OPAFFECTED?
REPORTABLE?
LEVELRESOCLOSEDREPEATREPEATFF.FF.MPFF?MPFF795-0344149S/1185YESNONO2RCA0/12/955gI,'ftw(o'c~UgY,=,IS,I F02'PMAYBEINADEGRADEDCONDITION BECAUSEOFPOTENTIAL SIGNIFICANT OVERTHRUST RESULTING FROMITTIPPINGITSTHERMALOVERLOADS (REFERENCE WAS21676DATED11/25/92).
INADDITION, TORQUESWITCHREPLACEMENT WASPERFORfvKD ASPARTOFINVESTIGATION ANDNOPOSTMAINTENANCE VOTESTESTWASDONE.THISISINVIOLA@ONQFAD-QA-531, THEPROCEDURE INEFFECTATTHETIME.Description:
DURINGAREVIEWOFHV-151F027B VALVEMAINTENANCE HISTORY,ITWASDISCOVERED THATTHEMOVTRIPPEDITSTHERMALOVERLOADS TWICE(REFERENCE WAS21676DATED11/25/92),
INDICATING THATPOTENTIAL SIGNIFICANT OVERTHRUST ANDOVERTiORQUE
@ASOCCURRED.
INANINVESTIGATION, ADEFECTIVE TORQUESWITCHWASFOUND.TfgWADOCUMENTED TORQUESWITCHREPLACEMENT WASPERFORMED; HOWEVER,THEREWAgQOEVIDENCEOFAPOST-MAINTENANCE VOTESTEST.THEDATEOFTHELATESTVOTESTESTPEQ~ORMED Og~ISMOVIS4/18/92(WAS10396).aTWOCONCERNSEXIST1.THEMOV)MAYBEINADEGRADEDCONDITION PECAN:.SE OFTHESIGNIFICANT OVERTHRUST ANDOVERTORQUE RESULTING FR(/II'f@PPIhPITSPfEQUALOVERLOADS.-


==References:==
==References:==
WAP34011WAS51119WAS51144EquipNos:HVISlF027B2.NOTPERFORMINGAPOST-MAINTENANCEVOTESTESTFOLLOWINGTORQUESWITCHREPLACEMENTISINVIOLATIONOFAD-QA-531,REV.0,ATTACHMENTBSECTION1.9WHICHWASINEFFECTATTHATTIME.RptSystem SearchonSystemNumber:49CRNOUNITSYS//EVENTDATENC?OPAFFECTED?REPORTABLE?LEVELRESOCLOSEDREPEATREPEATFF?FF?MPFF?MPFF?NONO95-04002492/23/96ANOU'A/0'~g,~~~~MOVDATADETAILDRAWINGM-l404FORVALVETAGNO.EV2/lIF102RCONTAINSTHEINCORRECTSTEMMATERIAL(ASTMA-582GR416VERSUSTHEACTUALMATERIALSA-564GR-630.)Description:DURINGREVISIONOFTHEMOVDATADETAIL,LIMITSWITCHSETTINGANDTORQUESWITCHSETTINGSFORHV251F103A(CALCULATIONNO.EC-049-0552),THEINCORRECTSTEM'MATERIALWASNOTED.THISINCORRECTSTEMMATERIALISINPUTTOTHEVOTESSOFTWAREFORVOTESTESTING.THEREFORE,BASEDONTHEINCORRECTSTEMMATERIAL,THEVOTESTHRUSTDATAFORTHISVALVEISOFFSET.
 
WAP34011WAS51119WAS51144EquipNos:HVISlF027B 2.NOTPERFORMING APOST-MAINTENANCE VOTESTESTFOLLOWING TORQUESWITCHREPLACEMENT ISINVIOLATION OFAD-QA-531, REV.0,ATTACHMENT BSECTION1.9WHICHWASINEFFECTATTHATTIME.RptSystem SearchonSystemNumber:49CRNOUNITSYS//EVENTDATENC?OPAFFECTED?
REPORTABLE?
LEVELRESOCLOSEDREPEATREPEATFF?FF?MPFF?MPFF?NONO95-04002492/23/96ANOU'A/0'~g,~~~~MOVDATADETAILDRAWINGM-l404FORVALVETAGNO.EV2/lIF102R CONTAINSTHEINCORRECT STEMMATERIAL(ASTMA-582GR416VERSUSTHEACTUALMATERIALSA-564GR-630.)Description:
DURINGREVISIONOFTHEMOVDATADETAIL,LIMITSWITCHSETTINGANDTORQUESWITCHSETTINGSFORHV251F103A (CALCULATION NO.EC-049-0552),
THEINCORRECT STEM'MATERIAL WASNOTED.THISINCORRECT STEMMATERIALISINPUTTOTHEVOTESSOFTWAREFORVOTESTESTING.THEREFORE, BASEDONTHEINCORRECT STEMMATERIAL, THEVOTESTHRUSTDATAFORTHISVALVEISOFFSET.


==References:==
==References:==
CR95-0447WAV-50869EquipNos:HV251FI03A95-04372499/18/95NONONO2RCAFOREIGNPOTENTIALREVIEWWASNOTPERFORMEDPRIORTOPERFORMINGSE-259-100,TEST2.Description:WHILEPERFORMINGREVIEWFOLOWINGCOMPLETIONOFSE-259-100,ITWASNOTICEDTHATTHEPREREQUISITESINCLUDETHEFOREIGNPOTENTIALREVIEW.ATTHETIMESE-259-100,TEST2WASPRESSURIZED,PERMIT2-95-2001WASACTIVE.THESYSTEMPERMITSUPERVISORWASTHEONLYSIGN--ONONTHE2001PERMIT.THEPREREQUISITESWERECOMPLETEDPRIORTOPERFORMANCEOFTEST1ON9/14/95.ATTHATTIMEFOREIGNPOTENTIALREVIEWWASNO.
 
CR95-0447WAV-50869EquipNos:HV251FI03A95-04372499/18/95NONONO2RCAFOREIGNPOTENTIAL REVIEWWASNOTPERFORMED PRIORTOPERFORMING SE-259-100, TEST2.Description:
WHILEPERFORMING REVIEWFOLOWINGCOMPLETION OFSE-259-100, ITWASNOTICEDTHATTHEPREREQUISITES INCLUDETHEFOREIGNPOTENTIAL REVIEW.ATTHETIMESE-259-100, TEST2WASPRESSURIZED, PERMIT2-95-2001 WASACTIVE.THESYSTEMPERMITSUPERVISOR WASTHEONLYSIGN--ONONTHE2001PERMIT.THEPREREQUISITES WERECOMPLETED PRIORTOPERFORMANCE OFTEST1ON9/14/95.ATTHATTIMEFOREIGNPOTENTIAL REVIEWWASNO.


==References:==
==References:==
EquipNos:RptSysteut SearchonSystemNumber:49CRNO.UNITSYS&#xb9;EVENTDATENC?OPAFFECTED?REPORTABLE?LEVELRESOCLOSEDREPEATREPEATFF?FF?MPFF?MPFF?954472249912885NONONO2INVESTNORHRCOMMONPIPINGCONTAINEDWATERALTHOUGHITWASTHOUGHTTOBECOMPI.ETELYDRAINED.Description:AR206A5(LIQUIDRWCOLLECTPANEL2C209SYSTEMTROUBLE)UNEXPECTEDLYALARMEDINTHECONTROLROOMON2C651ANDMOMENTSLATERAR207(DWFLOORDRNSUMPAHI-HILVL)ONIC601ALSOALARMED.RECORDERLR-26102AINDICATEDLEVELINTHE'A'UMPINCREASING.THEUNIT2PCOCONTACTEDTHEWORKCONTROLCENTERTOSEEIFANYONGOINGACTIVITYWASCAUSINGTHEINCREASEDSUMPLEVEL.THEWORKCONTROLCENTERSUSPECTEDAPSV(PSV251F126)REWORKTHATWASINPROGRESSSOANOPERATORWASDISPATCHEDTOINVESTIGATE.THECONTROLROOMPCOCONTACTEDTHEDRYWELLCOORDINATORTOINVESTIGATE.THEDWCOORDINATORREPORTEDTOTHECONTROLROOMTHATTHESUMPLEVELLOCALINDICATIONONEL.719WASSHOWING97%.HETHENWENTINTOTHEDRYWELLANDFOUNDTHESUMPFILLEDANDSLIGHTLYOVERFLOWING.THETEMPORARYSUMPPUMPCORDWASFOUNDUNPLUGGED.THEPUMPWASPLUGGEDINANDTHEPIPINGDRAINWASREDIRECTEDINTOADOWNCOMMER.
 
EquipNos:RptSysteut SearchonSystemNumber:49CRNO.UNITSYS&#xb9;EVENTDATENC?OPAFFECTED?
REPORTABLE?
LEVELRESOCLOSEDREPEATREPEATFF?FF?MPFF?MPFF?954472249912885NONONO2INVESTNORHRCOMMONPIPINGCONTAINED WATERALTHOUGHITWASTHOUGHTTOBECOMPI.ETELY DRAINED.Description:
AR206A5(LIQUIDRWCOLLECTPANEL2C209SYSTEMTROUBLE)UNEXPECTEDLY ALARMEDINTHECONTROLROOMON2C651ANDMOMENTSLATERAR207(DWFLOORDRNSUMPAHI-HILVL)ONIC601ALSOALARMED.RECORDERLR-26102A INDICATED LEVELINTHE'A'UMPINCREASING.
THEUNIT2PCOCONTACTED THEWORKCONTROLCENTERTOSEEIFANYONGOINGACTIVITYWASCAUSINGTHEINCREASED SUMPLEVEL.THEWORKCONTROLCENTERSUSPECTED APSV(PSV251F126)
REWORKTHATWASINPROGRESSSOANOPERATORWASDISPATCHED TOINVESTIGATE.
THECONTROLROOMPCOCONTACTED THEDRYWELLCOORDINATOR TOINVESTIGATE.
THEDWCOORDINATOR REPORTEDTOTHECONTROLROOMTHATTHESUMPLEVELLOCALINDICATION ONEL.719WASSHOWING97%.HETHENWENTINTOTHEDRYWELLANDFOUNDTHESUMPFILLEDANDSLIGHTLYOVERFLOWING.
THETEMPORARY SUMPPUMPCORDWASFOUNDUNPLUGGED.
THEPUMPWASPLUGGEDINANDTHEPIPINGDRAINWASREDIRECTED INTOADOWNCOMMER.


==References:==
==References:==
EquipNostMECHANICALMAINTENANCEWASSIGNEDONTOANDWORKINGWITHINTHEBOUNDARIESOFSYSTEMPERMIT2-95-2000.THESUBJECTPIPINGWASPREVIOUSLYDRAINEDTOSUPPORTANLLRT(SE-259-030).RptSystem


SearchonSystemNumber:49CRNO.UNITSYS//EVENTDATENC7OPAFFECTED?REPORTABLETLEVELRESO'LOSEDREPEATREPEATFF?FF?MPFF?MPFF?95-051724910/9/95NONONO2INVESTNOHANGERDRAW1NGDCA-210-H1,REV.3DOESNOTREFLECTTHEACTUALPLANTINSTALLATIONOFDCA-210-HIDescription:WHILEPERFORMINGAVT3INSPECTIONONDCA-210-H1,ITWASNOTEDTHATTHEHANGERDRAWINGSHOWSITEM&#xb9;5TOBEASIZE20SPRINGCAN,HOWEVER,ASIZE19SPRINGCANISACTUALLYINSTALLED.FURTHERINSPECTIONSREVEALEDTHATGEMS&#xb9;3,$,6,),STHATAREACTUALYINSTALLEDINTHEPLANTAREDIFFERENTTHANWHATISSPECIFIEPQQTfg~GODDRAWINGBILLOFMATERIAL.THEDRAWINGSPECIFIESTHESEPARTSTOPEPPRP2.5'i%PLOPPRACKETTHEYAREACTUALLYFORA2.25"WELDEDBRACKET.THEWELDDE'JAP.OgTgEQQ~GSPECIFIESAFLAREBEVELWELDONTWOSIDESWITHAFILLETWELDONTPE'PVvqOPPOSESP)gS,THEACTUALFIELDINSTALLATIONDOESNOTHAVETHEFLAREBEVELWELDSPfSg+LED.D/SCU)SION'SWITHSITESYSTEMENGINEERINGANDTHROUGHTHEIRINVESTjGQTlqN6gTHE$$QVEOPTEDDRAWINGDISCREPANCIESISWASCONCLUDEDTHATASUPERSEQPD(ID'AS+COgPgPATEDINTOREV.3OFDCA-'210-HI.,I.ft
EquipNostMECHANICAL MAINTENANCE WASSIGNEDONTOANDWORKINGWITHINTHEBOUNDARIES OFSYSTEMPERMIT2-95-2000.
THESUBJECTPIPINGWASPREVIOUSLY DRAINEDTOSUPPORTANLLRT(SE-259-030).
RptSystem
 
SearchonSystemNumber:49CRNO.UNITSYS//EVENTDATENC7OPAFFECTED?
REPORTABLET LEVELRESO'LOSEDREPEATREPEATFF?FF?MPFF?MPFF?95-051724910/9/95NONONO2INVESTNOHANGERDRAW1NGDCA-210-H1, REV.3DOESNOTREFLECTTHEACTUALPLANTINSTALLATION OFDCA-210-HIDescription:
WHILEPERFORMING AVT3INSPECTION ONDCA-210-H1, ITWASNOTEDTHATTHEHANGERDRAWINGSHOWSITEM&#xb9;5TOBEASIZE20SPRINGCAN,HOWEVER,ASIZE19SPRINGCANISACTUALLYINSTALLED.
FURTHERINSPECTIONS REVEALEDTHATGEMS&#xb9;3,$,6,),STHATAREACTUALYINSTALLED INTHEPLANTAREDIFFERENT THANWHATISSPECIFIEP QQTfg~GODDRAWINGBILLOFMATERIAL.
THEDRAWINGSPECIFIES THESEPARTSTOPEPPRP2.5'i%PLOPPRACKETTHEYAREACTUALLYFORA2.25"WELDEDBRACKET.THEWELDDE'JAP.OgTgEQQ~GSPECIFIES AFLAREBEVELWELDONTWOSIDESWITHAFILLETWELDONTPE'PVvqOPPOSESP)gS,THEACTUALFIELDINSTALLATION DOESNOTHAVETHEFLAREBEVELWELDSPfSg+LED.D/SCU)SION'S WITHSITESYSTEMENGINEERING ANDTHROUGHTHEIRINVESTjGQTlqN 6gTHE$$QVEOPTEDDRAWINGDISCREPANCIES ISWASCONCLUDED THATASUPERSEQPD(
ID'AS+COgPgPATED INTOREV.3OFDCA-'210-HI.
,I.ft


==References:==
==References:==
EquipNos:RptSystem  
EquipNos:RptSystem  


SearchonSystemNumber:49CRNO.UNITSYSttEVENTDATENCTOPAFFECTED?REPORTABLE?LEVELRESO~'LOSEDREPEAT-REPEATFF?FF?MPFF.MPFF?95453924910/1485NONO1RCANODURINGPERFORMANCEOFSE-200-002"ASMECLASSIBOUNDARYSYSTEMLEAKAGE/HYDROSTATICPRESSURETESTING"RHRHEADSPRAYIBSHUTOFFHV-251F022AUTOCLOSED.ESFACTUATIONDescription:STEP6.1.8OFSE-200-002,OPENSRHRHEADSPRAYIBSHUTOFFHV-251F022.DURINGRPVPRESSURIZATION,ITWASNOTICEDTHATTHEF022VALVEHADCLOSED.THISOCCURREDDURINGTHE2PERFORMANCESOFSE-200-002ON10/13/95AND10/14/95WHENPRESSUREWASABOVE98PSIG.ATNOTIMEINTHISPROCEDUREISTHISVALVECLOSED,INTERLOCKDEFEATEDORIDENTIFIEDTHATTHISVALVEWOULDAUTOCLOSE.tNSE/PNSSWASNOTIFIEDOFTHESEOCCURRENCESANDCONCLUDEDTHATTHEVALVEWOULDAUTOCLOSE,IFOPENED,WHENRPVPRESSUREISGREATERTHAN98PSIGVIARELAYB21H-K82INPANEL2C622(REF.8856-Ml-B21-101(10)).STEP6.1.15WOULDHAVEPREVENTEDTHISISOLATIONTOOCCUR,BUTTHISSTEPISONLYPERFORMEDDURINGTHE"HYDRO"NOTTHE"SYSTEMLEAKAGE"PRESSURETEST.(ONTHESEDATESSE-200-002SYSTEMLEAKAGETESTWASBEINGPERFORMEDNOTTHEHYDRO.)
SearchonSystemNumber:49CRNO.UNITSYSttEVENTDATENCTOPAFFECTED?
REPORTABLE?
LEVELRESO~'LOSEDREPEAT-REPEATFF?FF?MPFF.MPFF?95453924910/1485NONO1RCANODURINGPERFORMANCE OFSE-200-002 "ASMECLASSIBOUNDARYSYSTEMLEAKAGE/HYDROSTATIC PRESSURETESTING"RHRHEADSPRAYIBSHUTOFFHV-251F022 AUTOCLOSED.ESFACTUATION
 
==
Description:==
 
STEP6.1.8OFSE-200-002, OPENSRHRHEADSPRAYIBSHUTOFFHV-251F022.
DURINGRPVPRESSURIZATION, ITWASNOTICEDTHATTHEF022VALVEHADCLOSED.THISOCCURREDDURINGTHE2PERFORMANCES OFSE-200-002 ON10/13/95AND10/14/95WHENPRESSUREWASABOVE98PSIG.ATNOTIMEINTHISPROCEDURE ISTHISVALVECLOSED,INTERLOCK DEFEATEDORIDENTIFIED THATTHISVALVEWOULDAUTOCLOSE.tNSE/PNSSWASNOTIFIEDOFTHESEOCCURRENCES ANDCONCLUDED THATTHEVALVEWOULDAUTOCLOSE,IFOPENED,WHENRPVPRESSUREISGREATERTHAN98PSIGVIARELAYB21H-K82INPANEL2C622(REF.8856-Ml-B21-101(10)).
STEP6.1.15WOULDHAVEPREVENTED THISISOLATION TOOCCUR,BUTTHISSTEPISONLYPERFORMED DURINGTHE"HYDRO"NOTTHE"SYSTEMLEAKAGE"PRESSURETEST.(ONTHESEDATESSE-200-002 SYSTEMLEAKAGETESTWASBEINGPERFORMED NOTTHEHYDRO.)


==References:==
==References:==
LER388/95-013EquipNos:HV25IF02210RptSystem


SearchonSystemNumber:49CRNOUNITSYS//EVENTDATENC?OPAFFECTED?REPORTAIILE?LEVELRESOCLOSEDREPEAT'EPEATFF?FF?MPFF?MPFF~95-066424911/16/95NONO2RCANOINCORRECTTHERMALLOAD.CASEWASUSEDTOQUALIFYTHENEWSURROGATEASSEMBLIESFOR.PSV251F055A&BVALVESREPLACEMENT.THETHERMALLOADCASEUSEDWASUNCONSERVATIVE.Description:.DURINGTHEPREPARATIONOFTHEUNITICALCULATIONSFORTHEPSV151F055A&BVALVEREPLACEMENTS,THEUNIT2CALCULATIONEC-PIPE-6027WASREVIEWEDTODETERMINEIFTHESURROGATEASSEMBLIESSMILARTOTHEUNIT2MODIFICATIONCOULDBEUSEDINTHEUNIT2MODIFICATIONCOULDBEUSEDINTHEUNITIDCP.THEFOLLOWINGDISCREPANCYWASFOUND:
LER388/95-013 EquipNos:HV25IF022 10RptSystem
 
SearchonSystemNumber:49CRNOUNITSYS//EVENTDATENC?OPAFFECTED?
REPORTAIILE?
LEVELRESOCLOSEDREPEAT'EPEATFF?FF?MPFF?MPFF~95-066424911/16/95NONO2RCANOINCORRECT THERMALLOAD.CASEWASUSEDTOQUALIFYTHENEWSURROGATE ASSEMBLIES FOR.PSV251F055A
&BVALVESREPLACEMENT.
THETHERMALLOADCASEUSEDWASUNCONSERVATIVE.
 
==
Description:==
.
DURINGTHEPREPARATION OFTHEUNITICALCULATIONS FORTHEPSV151F055A
&BVALVEREPLACEMENTS, THEUNIT2CALCULATION EC-PIPE-6027 WASREVIEWEDTODETERMINE IFTHESURROGATE ASSEMBLIES SMILARTOTHEUNIT2MODIFICATION COULDBEUSEDINTHEUNIT2MODIFICATION COULDBEUSEDINTHEUNITIDCP.THEFOLLOWING DISCREPANCY WASFOUND:


==References:==
==References:==
EquipNos:UNIT2RHRPSV251F055A&BVALVESWEREREPLACEDWITHTHESURROGATEASSEMBLIESPERDCP94-9083..THESURROGATEASSEMBLIESWEREDESIGNEDTOSIMULATETHEREMOVEDVALVESINWEIGHTANDCENTEROFGRAVITY(CALCULATIONEC-PIPE-6027,REV.0).THEREFORE,THERERUNOFME101COMPUTER.PIPINGANALYSISWASNOTREQUIRED.HOWEVER,WEIGHT,THERMALANDSEISMICLOADINGWASEXTRACTEDANDUSEDTOQUALIFYTHENEWSURROGATESFORTHERHRVALVES.'HEUNIT2CALCULATIONEC-PIPE-6027,USEDINCORRECTTHERMALLOAD'CASETOQUALIFYTHEWELDSBETWEENTHE8"AND6"BLINDFLANGESONTHESURROGATEASSEMBLIES.THEREARESEVEN(7)THERMALLOADCASESINTHEEXISTINGMEIOICOMPUTERPIPINGANALYSIS,WHICHARELOCATEDINCALCULATIONSPLS-2643(EC-PIPE-0621)&PLS-2646(EC-PIPE-0677).THETHERMALLOADCASESAREDEFINEDBELOW:THRM01-MINIMUMFLOWBYPASSMODEPUMP"D"RUNNINGTHRM02-MINIMUMFLOWBYPASSMODEPUMP"B"RUNNINGIIIlTHRM03-POST-ACCIDENTCONTAINMENTSPRAYPUMPSB&DRUNNINGTHRM04-NORMALSHUTDOWNAFTERBLOWDOWNTOMAINCONDENSER,PUMP"D"RUNNINGTHRM05-NORMALSHUTDOWNAFTERBLOWDOWNTOMAINCONDENSER,PUMP"B"RUNNINGITHRM06-SYSTEMONSTANDBY,NOPUMPSRUNNINGRpISystem SearchonSystemNumber:49CRNO.UNITSYSttEVENTDATENCTOPAFFECTED?REPORTABLE?LEVELRESOCLOSEDREPEATREPEATFF?FF?MPFF?MPFF?THRMFA-FAULTEDTHERMALLOADCASE(POST-LOCATEMPERATURE)WITHMAXIMUMTEMPERATUREUSEDTOQUALIFYFORNOZZLEANDSUPPORTLOADS(SEENOTEBELOW)THELOADCASETHRM01-THRM06SHOULDHAVEBEENUSEDTOQUALIFYTHE8"AND6"BLINDFLANGESONTHEUNIT2MODIFICATION.HOWEVER,ONLYTHRMOIWASCONSIDEREDINTHEQUALIFICATIONOFTHESURROGATEASSEMBLY.THIS,RESULTEDINUNCONSERVATIVERESULTS.NOTE:POST-LOCAENVIORNMENTALTEMPERATURERISEISAFAULTEDCONDITIONANDANYEXPANSIONSTRESSRESULTINGFROMTHISCONDITIONISCLASSIFIEDASSECONDARY.CODEEVALUATIONClFPIPINGSTRESSES/PIPESUPPORTMEMBERSARENOTREQUIREDFORTHISFAULTEDCONDITIONPERBLP25976,DATEDI/23/84.12RptSystem SearchonSystemNumber:49CRNO.UNITSYS0EVENTDATENC?OPAFFECTED?REPORTABLE?LEVELRESOCLOSEDREPEATREPEATFF?FF?MPFF?MPFF?6614911/17/95NOCNO1DRHRPUMPFAILEDSURVEILLANCEACCEPTANCECRITERIAREGARDINGDPVELOPEDDIFFERENTIAL~PRESSURE.Description:CWHILEPERFORMINGSO-149-002ANDESTABLISHEDPHP.FLGWOFi0I~GPMTiIROUGHTHEHEATEXCHANGERASREADONTHEFLOWRECORDER,'PIEIDPIBPDlI<<;ERE1f'GALPRESSUREWASDETERMINEDTOBE247PSID.THEACCEPTANCECRIPOP.TIEIDIFIERPNjIALPRESSUREBETWEEN248AND272PSID.THEIBRHRPUMPPASSEYlTHEI(CCEPTA4QCECRITERIA,HOWEVER,WITHNOMARGIN(I.E,RECORDEDDPOF250WITHACCEPT'CE'IA~AZ.250-27tIPSID).-''i.ii'~'h4ii/LPf<%'t'i",tit.'BSERVEDDIFFERENCESBETWEENFRANDFlVAQUEROLEAPTQ(UPlECTTHERECORDER'SACCURACY.THERECORDER'SINDICATIONAPPEARTSTOBELOWER~Q/tI.CT'PPL,I&6:P$SCONTACTEDTOINVESTIGATE.1&CDETERMINEDTHEFRINDICATIONOUTOFCALIBRATION.LOWP'PROXMATELYIKGPMANDRECALIBRATIONWASPERFORMEDUNDERWAS7212.THEBANDDPUMPSWERERETESTEDSATISFACTORILYWITHDIFFERENTIALPRESSURESOF273PSID(250-274ACCEPTABLE)AND267PSID(248-272ACCEPTABLE).
 
EquipNos:UNIT2RHRPSV251F055A
&BVALVESWEREREPLACEDWITHTHESURROGATE ASSEMBLIES PERDCP94-9083..THESURROGATE ASSEMBLIES WEREDESIGNEDTOSIMULATETHEREMOVEDVALVESINWEIGHTANDCENTEROFGRAVITY(CALCULATION EC-PIPE-6027, REV.0).THEREFORE, THERERUNOFME101COMPUTER.
PIPINGANALYSISWASNOTREQUIRED.
HOWEVER,WEIGHT,THERMALANDSEISMICLOADINGWASEXTRACTED ANDUSEDTOQUALIFYTHENEWSURROGATES FORTHERHRVALVES.'HEUNIT2CALCULATION EC-PIPE-6027, USEDINCORRECT THERMALLOAD'CASE TOQUALIFYTHEWELDSBETWEENTHE8"AND6"BLINDFLANGESONTHESURROGATE ASSEMBLIES.
THEREARESEVEN(7)THERMALLOADCASESINTHEEXISTINGMEIOICOMPUTERPIPINGANALYSIS, WHICHARELOCATEDINCALCULATIONS PLS-2643(EC-PIPE-0621)
&PLS-2646(EC-PIPE-0677).
THETHERMALLOADCASESAREDEFINEDBELOW:THRM01-MINIMUMFLOWBYPASSMODEPUMP"D"RUNNINGTHRM02-MINIMUMFLOWBYPASSMODEPUMP"B"RUNNINGIIIlTHRM03-POST-ACCIDENT CONTAINMENT SPRAYPUMPSB&DRUNNINGTHRM04-NORMALSHUTDOWNAFTERBLOWDOWNTOMAINCONDENSER, PUMP"D"RUNNINGTHRM05-NORMALSHUTDOWNAFTERBLOWDOWNTOMAINCONDENSER, PUMP"B"RUNNINGITHRM06-SYSTEMONSTANDBY,NOPUMPSRUNNINGRpISystem SearchonSystemNumber:49CRNO.UNITSYSttEVENTDATENCTOPAFFECTED?
REPORTABLE?
LEVELRESOCLOSEDREPEATREPEATFF?FF?MPFF?MPFF?THRMFA-FAULTEDTHERMALLOADCASE(POST-LOCA TEMPERATURE)
WITHMAXIMUMTEMPERATURE USEDTOQUALIFYFORNOZZLEANDSUPPORTLOADS(SEENOTEBELOW)THELOADCASETHRM01-THRM06SHOULDHAVEBEENUSEDTOQUALIFYTHE8"AND6"BLINDFLANGESONTHEUNIT2MODIFICATION.
HOWEVER,ONLYTHRMOIWASCONSIDERED INTHEQUALIFICATION OFTHESURROGATE ASSEMBLY.
THIS,RESULTEDINUNCONSERVATIVE RESULTS.NOTE:POST-LOCA ENVIORNMENTAL TEMPERATURE RISEISAFAULTEDCONDITION ANDANYEXPANSION STRESSRESULTING FROMTHISCONDITION ISCLASSIFIED ASSECONDARY.
CODEEVALUATION ClFPIPINGSTRESSES/PIPE SUPPORTMEMBERSARENOTREQUIREDFORTHISFAULTEDCONDITION PERBLP25976,DATEDI/23/84.12RptSystem SearchonSystemNumber:49CRNO.UNITSYS0EVENTDATENC?OPAFFECTED?
REPORTABLE?
LEVELRESOCLOSEDREPEATREPEATFF?FF?MPFF?MPFF?6614911/17/95NOCNO1DRHRPUMPFAILEDSURVEILLANCE ACCEPTANCE CRITERIAREGARDING DPVELOPED DIFFERENTIAL
~PRESSURE.
 
==
Description:==
 
CWHILEPERFORMING SO-149-002 ANDESTABLISHED PHP.FLGWOFi0I~GPMTiIROUGHTHEHEATEXCHANGER ASREADONTHEFLOWRECORDER,
'PIEIDPIBPDlI<<;ERE1f'GALPRESSUREWASDETERMINED TOBE247PSID.THEACCEPTANCE CRIPOP.TIEIDIFIERPNjIALPRESSUREBETWEEN248AND272PSID.THEIBRHRPUMPPASSEYlTHEI(CCEPTA4QCE
: CRITERIA, HOWEVER,WITHNOMARGIN(I.E,RECORDEDDPOF250WITHACCEPT'CE'IA~AZ.250-27tI PSID).-''i.ii'~'h4ii/LPf<%'t'i",t it.'BSERVED DIFFERENCES BETWEENFRANDFlVAQUEROLEAPTQ(UPlECTTHERECORDER'S ACCURACY.
THERECORDER'S INDICATION APPEARTSTOBELOWER~Q/tI.CT'PPL, I&6:P$SCONTACTED TOINVESTIGATE.
1&CDETERMINED THEFRINDICATION OUTOFCALIBRATION.LOW P'PROXMATELY IKGPMANDRECALIBRATION WASPERFORMED UNDERWAS7212.THEBANDDPUMPSWERERETESTEDSATISFACTORILY WITHDIFFERENTIAL PRESSURES OF273PSID(250-274ACCEPTABLE)
AND267PSID(248-272ACCEPTABLE).


==References:==
==References:==
EquipNos:FRElllR60813RptSystem


SearchonSystemNumber:49CRNOUNITSYS//EVENTDATENC.OPAFFECIED?REPORTABLE?LEVELRESOCLOSEDREPEATREPEATFF?FF?MPFF?MPFF?96-0111I49I/30/96NONO2CLOSURE2/2/96CONTAINMENTSPARYOP'SCHANGEDANDCONFLICTWITHSTATEMENTINFSAR.Description:ON11/21/95,PCAFSWEREPREPAREDTOALLOW,.CONCURRENTUSEOFLPCIANDDRYWELLSPRAY.THISCHANGEPROVIDEDMOREFLEXIBILITYINRESPONDINGTOPOSTULATEDTRANSIENTSTHATCAUSEANINCREASETOPRIMARYCONTAINMENTPRESSURE.PFACS1-95-1157AND2-95-0520WEREAPPROVEDANDDISTRIBUTED.
EquipNos:FRElllR608 13RptSystem
 
SearchonSystemNumber:49CRNOUNITSYS//EVENTDATENC.OPAFFECIED?REPORTABLE?
LEVELRESOCLOSEDREPEATREPEATFF?FF?MPFF?MPFF?96-0111I49I/30/96NONO2CLOSURE2/2/96CONTAINMENT SPARYOP'SCHANGEDANDCONFLICTWITHSTATEMENT INFSAR.Description:
ON11/21/95, PCAFSWEREPREPAREDTOALLOW,.CONCURRENT USEOFLPCIANDDRYWELLSPRAY.THISCHANGEPROVIDEDMOREFLEXIBILITY INRESPONDING TOPOSTULATED TRANSIENTS THATCAUSEANINCREASETOPRIMARYCONTAINMENT PRESSURE.
PFACS1-95-1157 AND2-95-0520 WEREAPPROVEDANDDISTRIBUTED.


==References:==
==References:==
EquipNos:ALATERREVIEWOFTHEFSARINDICATEDTHEFOLLOWINGEXCERPTFROMSECTION6.2.2.2-IFTHEOPERATORCHOOSESTOUSETHECONTAINMENTSPARY,HEMUSTOPENTHESPARYVALVESANDCLOSETHELPCIINJECTIONVALVE.CONTRARYTOTHEFSARSTATEMENTABOVE,THEPCAFSPERMITTEDLINE-UPOFBOTHLPCIINJECTIONANDDRYWELLSPRAYATTHESAMETIME.96-0138249.2/7/96NONO2CLOSURE2/9/96NODURINGPERFORMANCE.OFSI-249-309(18MONTHCAL.OFREACTORCOOLANTSYSTEMLEAKAGEHIPRESSURE)PSH-E11-2N018(SHUTDOWNCOOLINGSUCTIONHEADERHIGHPRESSURE)FOUNDPSH-E11-2N01&OUTOFALLOWABLEVALUE.Description:FOUNDASFOUNDVALVEONPSH-E11-2N018AT155.6PSIG.ALLOWABLEVALUEISLESTHANOREQUAL~TO142PSIG(148.7HEADCORRECTED).
 
EquipNos:ALATERREVIEWOFTHEFSARINDICATED THEFOLLOWING EXCERPTFROMSECTION6.2.2.2-IFTHEOPERATORCHOOSESTOUSETHECONTAINMENT SPARY,HEMUSTOPENTHESPARYVALVESANDCLOSETHELPCIINJECTION VALVE.CONTRARYTOTHEFSARSTATEMENT ABOVE,THEPCAFSPERMITTED LINE-UPOFBOTHLPCIINJECTION ANDDRYWELLSPRAYATTHESAMETIME.96-0138249.2/7/96NONO2CLOSURE2/9/96NODURINGPERFORMANCE.
OFSI-249-309 (18MONTHCAL.OFREACTORCOOLANTSYSTEMLEAKAGEHIPRESSURE)
PSH-E11-2N018 (SHUTDOWN COOLINGSUCTIONHEADERHIGHPRESSURE)
FOUNDPSH-E11-2N01&OUTOFALLOWABLE VALUE.Description:
FOUNDASFOUNDVALVEONPSH-E11-2N018 AT155.6PSIG.ALLOWABLE VALUEISLESTHANOREQUAL~TO142PSIG(148.7HEADCORRECTED).


==References:==
==References:==
EquipNos:PSHEll2N01814RptSystem CRNO.UNITLEADGRPOPAFFECTED?REPORTABLE?LVLRESOTYPE974121NONO3CLOSUREEquipNos:SYSTEM:LEVELSWITCHLIS-821-2N024DFAILEDTOMEETACCEPTANCECI:ITERIASTEP6.2.15OFSI-280-311(A63867)EvcnlDate:Itrsu(:I<<sureI/24/97ScheduleActualLISD212N024D80')7-0I"2hIN'I'<)NO3(l.t)SI<ltiI'.quipNSY!<I'I:hl:INAI)VI!I(II'.NI'/OSCRAhlWASI(l;CEIVI.Dl)URI(iNTIII'ERFORMANCEOFSI-280-311.I'.vrntl)atr:It<'<<<Ctu<<irr1/24/97<:rhi<IntrA<'tu:ilI".iil2I?N<<31)nn97-0123hIVI'COIIIII.CfCOi4l)ITIONEquipNus:8YS'II'.hI:HAIRPINCLIPMISSINGONOA510-005CUBBSHUTTERACTUATIONLEVERHINGEPIN.ScheduleActualOASIOEventDate:I/21/97RcsuClos<<re3/2<//97974124NUCTNONODEGRADEDCOND.DEMIN.RESINPERFORMANCE.2CAUSEDETERMINATIONScheduleActualEventDate:I/24/97Reso5/30/97ClosureEquipNos:SYSTEM:39RptLIkePMIS' t}}
 
EquipNos:PSHEll2N01814RptSystem CRNO.UNITLEADGRPOPAFFECTED?
REPORTABLE?
LVLRESOTYPE974121NONO3CLOSUREEquipNos:SYSTEM:LEVELSWITCHLIS-821-2N024D FAILEDTOMEETACCEPTANCE CI:ITERIA STEP6.2.15OFSI-280-311 (A63867)EvcnlDate:Itrsu(:I<<sure I/24/97ScheduleActualLISD212N024D 80')7-0I"2hIN'I'<)NO3(l.t)SI<ltiI'.quipNSY!<I'I:hl:INAI)VI!I(
II'.NI'/OSCRAhlWASI(l;CEIVI.D l)URI(iNTIII'ERFORMANCE OFSI-280-311.
I'.vrntl)atr:It<'<<<Ctu<<irr1/24/97<:rhi<IntrA<'tu:ilI".iil2I?N<<31)nn97-0123hIVI'COIIIII.Cf COi4l)ITION EquipNus:8YS'II'.hI:HAIRPINCLIPMISSINGONOA510-005 CUBBSHUTTERACTUATION LEVERHINGEPIN.ScheduleActualOASIOEventDate:I/21/97RcsuClos<<re3/2<//97974124NUCTNONODEGRADEDCOND.DEMIN.RESINPERFORMANCE.
2CAUSEDETERMINATION ScheduleActualEventDate:I/24/97Reso5/30/97ClosureEquipNos:SYSTEM:39RptLIkePMIS' t}}

Revision as of 19:25, 29 June 2018

Rev 0 to EC-RISK-1065, Assessment of Common Cause Failure Probabilities for Use in Susquehanna Ipe.
ML17164A888
Person / Time
Site: Susquehanna  Talen Energy icon.png
Issue date: 06/22/1998
From: KUKIELKA C A
PENNSYLVANIA POWER & LIGHT CO.
To:
Shared Package
ML17164A884 List:
References
EC-RISK-1065, EC-RISK-1065-R, EC-RISK-1065-R00, NUDOCS 9811180050
Download: ML17164A888 (116)
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Text

NUCLEARENGINEERING CALCULATION

/STUDYCOVERSH/ETandNUCLEARRECORDSTRANSMITTAL SHEETFile¹R2-11.Page1ofTotalPages~2.TYPE:CALCD3.NUMBER:EC-RISK-1065

>4.REVISION:

05.TRANSMITTAL¹:

">6.UNIT:3>7.QUALITYCLASS:N'>8.DISCIPLiNE:

3~9,DESCRIPTION:

Assessment ofCommonCauseFailureProbabilities forUseintheSusquehanna IPE.SUPERSEDED BY:EC-N/A13.Application:

NA'>14AffectedSystemsr'fN/Athenline15ismandatory.

">15.NON-SYSTEM DESIGNATOR:

NA10.Alternate Number:NA12:ComputerCodeorModelused:NARISK11.Cycle:NAFicheQDiskgAm't-IfN/Athenline14ismandatory 16.AffectedDocuments:

17.

References:

QSARChangeReq'd18.Equipment

/Component

¹:19.DBDNumber:%20.PREPAREDBYPrintNamSignatrCasimirA.kiel>22.APOVEDBY/ATEPrintNameF.G.utlerSignature

>21.REVIEWEDBYPrintNameEricJebsenSignature 23.ACCEPTEDBYPP8L/DATE PrintNameSignature TOBECOMPLETED BYNUCLEARRECORDSNR-DCSSIGNATURE/DATE ADDANEWCOVERPAGEFOREACHREVISIONFORMNEPM-QA-0221-1, Revision2'erifiedFields>REQUIREDFIELDS98i'fi80050

'rr80709tORaOOCXOSOOOS87PPDR l

TABLEOFCONTENTSTOPICPAGEI.Treatment ofCommonCauseFailureIIMethodforEstimating CommonCauseFailures111.1CommonCauseFailuresofDieselGenerators III.2CommonCauseFailuresofPumps.III.3CommonCausefailureofValves.IV.CommonCauseProbabilities AssignedtoOtherSystemsA.IDieselsA.2MotorDrivenPumpsA.3SummaryofRHRSOORsandCRs.

I.Treatment ofCommonCauseFailureCommonCauseFailures(CCF)ofsystemsandcomponents weretreatedintheSusquehanna IPE.Thesignificant CCFsaresummarized inVolume6oftheIPE'.Additionally, commonfailuresofECCSactuation instrumentation (RPVwaterlevel,RPVpressureanddrywellpressure) wereincludedinthestudy.Thetreatment ofcommoncausefailurewasre-examined inresponsetoquestions raisedbytheNRCintheirSERconcerning thetreatment ofcommoncausefailure.There-examination consisted ofthreeparts.First,commoncausefailureofmultipleinstruments causedbyInstrument andControlTechnician wasassessedat10.Thisestimatewasre-examined.

Theinitialtreatment ofinstrumentation wasbaseduponGEanalysisperformed toextendSurveillance TestIntervals (STIs)andAllowedOutageTimes(AOTs).TheGEworkisbaseduponTHERPanalysisofthemultipleinstrumentation calibration.

Thisworkwasre-evaluated byre-examining theSusquehanna calibration procedures andthemanagement controlsinplacetoidentifysystematic mis-calibration ofinstrumentation.

Surveillance recordsandinstrument failuredatawasreviewtodetermine ifacommoncausefootprintwasdiscernible inthedata.Finallyandindependent THERPcalculation wasperformed usingtheASEPmethod.Thisworkconfirmed theoriginalassessment oftheinstrument mis-calibration.

Second,areviewwasperformed todetermine ifgenericcommoncausefailureratesappliedtoSusquehanna baseduponstatistical evaluation.

Thisevaluation waslimitedtothestationbatteries.

Finally,anevaluation ofequipment whichhasexperienced alargenumberofmultipledemandsandnomultiplefailureswasexamined.

Thissituation wastreatedingreaterdetailtoobtainamoreaccurateestimateoftheofthecommoncausefailureprobability.

TheTHERPanalysisisaddressed inaseparatecalculation.

Thiscalculation addresses thesecondandthirditems.Thefollowing probabilities ofmultiplecomponent failuresareprovidedfortheIPE.IIMethodforEstimating CommonCauseFailuresThemethodusedtodeveloptheprobability ofmultiplecomponent failuresduetoacommoncauseisbasedupontheworkinNUREG/CR-4780, Procedures forTreatingCommonCauseFailuresinSafetyandReliability Studies.ThePfactormethodisappliedtoestimatethefailureofredundant components givenfailureofthefirst.ThePfactorisdefinedtobe:

P=conditional probability thatacauseofacomponent failurewillbesharedbyoneormoreadditional components, giventhataspecificcomponent hasfailed,orQhlQ.,+QiEq.1Here,Qistheprobability ofmultiplefailuresQiistheprobability ofasinglefailure.Qiscomputedusingthefollowing equation; nhl.Q=-'lhlEq.2n=thenumberoftimesmcomponents ofinterestfail,N=thenumberoftestingepisodesofmcomponents ofinterest.

IfthenumberofdemandsNisunknown,thenitisestimated fromthenumberoftestusingthefollowing formula;non-staggered testing:Eq.3staggered testing:Nm=Ng+(m-l)nm,Eq.4Here,m=thenumberofcomponents inthetestepisode.k=thenumberofsingletestepisodes.

Ifthenumberofdemandsisknownthenfollowing formulaareusedforcomputing Nm;non-staggered testing:N=NumEq.5 staggered testingN=NDEq.6Inthecaseofnofailures, thebinomialdistribution'is usedtoestimatethemedianfailureprobability.

Uncertainty boundsareassumedtobelognormally distributed withtheupperboundbeingcomputedusingthebinomialdistribution at95%confidence.

Theerrorfactoriscomputedusingtheupperboundandthemedian.Theerrorfactorisusedtocomputethelowerbound.Theseformulaareappliedtoestimatetheprobability ofmultiplefailureforthevariouscomponents.

III.1CommonCauseFailuresofDieselGenerators.

Commoncauseofdieselsgenerators wasnotincludedinthe1991IPE.Thedieselgenerator datawerereexamined usingthecommoncausefailuremodeldescribed above.Twocaseswereconsidered:

failureoftwodieselsandfailureofall4diesels.ThedataforthedieselwasobtainedfromtheEC-RISK-0503 andsubsequent datawasobtainedfromdieselstartrecordsandfromCondition Reports.Thestartrecordsandcondition reportsareincludedinAppendixA.Thisdataissummarized inthefollowing Table.TableIDieselGenerator StartingandFailureDataTimePeriodDemandsSingleFailureDoubleFailuresTripleFailuresQuadruple Failures6/82-12/89 1/90-12/92 1/93-6/97 7/97-3/98 Total300628843072'7967221751100000SEstimated from1/93through6/97.Thcarc18quartersbctwccn1/93through6/97inclusive.

Onthcavcragcthereare430demands/18 quarters~24test/quarter.

Therearc12quartersbetween1/90&12/92inclusive or12x24288.Therare3quartersbctwce7/97&3/98inclusive or24x372.Thedieselsaretestedunderastaggered testingstrategyperTechnical Specifications.

Ifadieselfails,theotherenginesarestartedtoverifythattheyareoperable.

Therefore Equation6isusedtodetermine thenumberofsingleandmultipledemands.ThenumberoffailuresisspecificinTableIaswell.InthecaseofQuadruple failurenofailuresarereported.

Inthiscasethemedianfailureprobability isdetermined usingthebinomialdistribution withNm=3796trialsandzerofailures.

Theresultsofthesecalculations arepresented inTableII.

TableIIDieselGenerator FailureProbabilities LowerBoundMedianMeanUpperBoundSingleDiesel1.66E-021.99E-021.98E-022.39E-02DoubleFailures1.75E-032.90E-032.90E-034.80E-03Quadruple Failures4.24E-051.83E-042.72E-047.90E-04SimilardatahasnotbeencompiledfortheSusquehanna batteries.

Therefore theNUREG1150valueswereusedforthebatteries; III.2CommonCauseFailuresofPumps.TheECCSsystemsandthesystemsthatsupporttheiroperation aretestedperiodically onastaggered basispertheplantTechnical Specifications.

Ifapumpfailureoccurstestoftheremaining pumpsisnotstrictlyrequiredperTechnical Specifications.

Reviewing thedatashowsthatthemajorityofthepumpstartsareinresponsetotheneedforsuppression poolcooling.Shouldapumpfailtostart,subsequent pumpswouldbestartedtosatisfytheneedforsuppression poolcooling.Therefore theassumptions associated withthestaggered teststrategyareappliedtothemotordrivenpumpdata.Thepumpstartandfailuredataissummarized inTableIII.Therewerenocasesofmultiplepumpfailures.

Adoublefailureisassignedtothetwopumpfailurecasetoconservatively accountforadoublepumpfailureprecursor.

AfailureofasingleESWpumpoccurredduetoendbellerosion.Theerosionwascausebyoperating thesepumpsatverylowflows.Inspection oftheotherpumpsidentified endbellerosion,thoughtoamuchlessdegree.InfactthepumpswerestilloperableandpassedtheASMEtest.Howeverafailureoftwopumpsisincludedtoaccountfortheprecursor.

TableIVpresentsrunhoursandfailuretorundata.Commoncausefailuretorunisnottreatedduetheimplausibility oftwopumpsfailingatthesametimewhileoperating, unlessthefailureisattributed toanexternalevent.Detailedinformation isprovidedinAppendixA.

TableIIIPumpDemandandFailureDataSystemRHRCSRHRSWESWTotalTotal343215533606542214012SingleDoubleMultiple00000010191Usingthisdata,afailureprobability wascomputedforeachsystem'spumpsandfortheaggregate.

Theresultsofthesecalculations areshowninTableIV,TableIVFailureProbability ofPumpsProbability LowerMedianMeanUpperErrorFactor5.7E-041.4E-031.7E-033.5E-032.5ESW9.6E-041.6E-031.7E-032.7E-031.7RHRSW1.4E-032.4E-032.5E-034.0E-031.7CoreSpray1.0E-044.4E-046.6E-041.9E-034,4Aggregate 9.9E-041.4E-031.4E-032.0E-031.4Withexception ofthecorespraypumps,thefailureratesofthesespumpsaresupriseingly close.Therefore allpumpswillbeassignedthesameaggregate failureprobability.

Examining themeanandboundsofthecorespraypumpsonecouldconcludethattheyarefromamorereliablestatistical population.

Howevertheyarebeingassignedtheaggregate failureprobability whichisconservative.

Thecommoncausefailureprobability formultiplepumpstostartwascomputedusingtheassumptions associated withstaggered testingandtheaboveaggregated data.TheseresultsarereportedinTableV.Thesevaluesaretreatedasmeanvaluesforthesingleanddoublefailures.

Theboundareestimated usingthebinominal distribution.

Thisdataisusedtocalculate thelognormal medianandlowerbound.Therearenoquadruple pumpfailures.

Therefore thebinomialdistribution isusedtoestimatethemedianandbound.Theseestimates arethenusedtoestimatethemeanassumingthelognormal distribution.

TableVCommonCauseFailureProbabilities forPumpsProbability SingleDoubleQuadLowerMedianMeanUpper8.2E-041.3E-031.4E-032.1E-032.6E-051.2E-047.1E-053.4E-043.8E-064.9E-057.3E-052.1E-04ErrorFactor1.62.844Failuretorundatavalueswerealsocomputedforthepumpsidentified above.Theruntimeandfailuredataweretaken&omthesamedatasourcesasthestartdata.ThisdataisprovidedinTablesVITablesVII.TableVIPumpRunHoursSystemRHRCSRHRSWESWTotalTotal616502841870774130685291527RunFailuresTableVIIFailuretoRunProbability LowerMedianMeanUpperErrorFactor1.4E-068.1E-061.4E-054.9E-056.0ESW8.3E-062.6E-053.1E-057.8E-053.1RHRSW1.2E-067.1E-061.2E-054.2E-056.0CoreSpray2.9E-061.8E-053.0E-051.1E-046.0Aggregate 3.7E-061.1E-051.4E-053.5E-053.1 III.3CommonCausefailureofValves.Commoncausefailureprobability formultiplevalvesisbasedstaggered testing.Themajorityofthedemandsareforsuppression poolcooling.Failureofavalvetoopenwouldresultintheinability tooperatesuppression poolingusingthisparticular division.

Shouldthisoccuretheoperatorwouldinitiatetheredundant loopofRHR.Theconditional probabilities werederivedfromRHRvalvefailuredata.Areviewofplantdata,showsthattheRHRvalveswerestrokedabout11,400times.EighteenRHRvalvefailureswereidentified intheplantrecords.Nomultiplevalvefailurewereidentified.

Usingthisdatathefailureprobability iscomputedwithuncertainty bounds.Theboundsarederived&omthePoissondistribution.

Themedianiscomputedbyapplyingthemeanandtheboundsgenerated usingthePoissontothelognormal distribution.

lower=9.4x,median=1.5x10mean=1.6x10upper=2.5 x10.Sincenomultiplefailuresofthevalveswereobserved, 0.5doublefailuresareassignedtocomputetheconditional probability (two/one):

p(two/one)

=0.5/18=2.3x10andtheprobability oftwovalvesfailingbecomes:lower=1.2x10median=3.5x10mean=4.4x10upper=1.1 x10.IV.CommonCauseProbabilities AssignedtoOtherSystemsCommoncauseprobabilities wereassignedtoothercomponents.

Theassignments weremadebasedoneither;otherexistingdataorscreening values.ThesevaluesareprovidedinTableVIII.

TableVIIICommonCauseFailureRatesofOtherComponents EventNameDescription lowermeanupperTSDVFailureoftwoscramdischarge volumes.Singlebased4.8E-8uponNUREG0460,P0.01baseduponPP&LreportsNPE-89-003

&RA-1-NA-006 1.8E-74.4E-7SRV1&SRVIINADSSRVMCLPPCCFSLCPFailureofsecondandthirdgivenfirst.P=1.0NUREG2728Failureof10non-ADSASMEcodesafetyreliefvalvesgivenfailureoffailureof6ADSvalves.P=0.5assumed.Failureoflowpressurepermissive circuit.NUREG1150valueused.CommoncausefailureofSLCSpumps.AssumedP=0.05baseduponotherpumpdata.2.6E-60.131.4E-55.6E-61.1E-50.55.3E-41.8E-42.4E-510.1.9E-35.6E-4CCFTDPCommonCausefailureofHPCI&RCICNPE-86-003

&NUREG/CR-2497 CCFCTVFailureofbothdivisions ofRHR/IQIRSW crosstievalves0.00051.2E-51.9E-34.4E-50.0045I.IEA References

'usquehanna IPEVolumeVISupplemental Information, Section3.Deccmbcr19912AnalysisofComponent OutageandFailureDataforthcSusquehanna IPE.EC-RISK@503, RcvITechnical Specification Improvement Methodology (withDemonstration forBWRECCSActuation Instrumentation)

PartINEDE-30936P-A, ClassIll,Dec.19884HumanErrorProbability forInstrument Calibration UsingASEPMethod,PP&LRecordedcaclulation EC-RISK-1064 5Procedures forTreatingCommonCauseFailuresinSafetyandReliability Studies,NUREG/CR<780 VolumnsI&26EC-RISK-0503 Rcv.I;EC-RISK-1060, Acccptancc NumbersforRiksSignificant SystemStructures andComponents, CzyszandKukielka;

&SOORs AppendixASupporting DataA.1DieselsA.2MotorDrivenPumpsA.3SummaryofRHRSOORsandCRs.

A.1DieselGenerator Data

Kukielka, CasimirFrom:To:

Subject:

Date:D'Angelo, VioletR.Kukielka, CasimirRE:DieselStartsMonday,September 29,199710:42AMForD/GA,8,C,D5minat1000KW10minat2000KW10minat3000KW210minat4000KW15minat500KWforcooldownbeforeS/DForD/GE5minat1375KW10minat2750KW220minat4000KW15minat500KWforcooldownbeforeS/Drg5From:Kukielka, CasimirTo:D'Angelo, VioletR.

Subject:

RE:DieselStartsDate:Friday,September 26,19974:33PMHaViolet,Whenyouguyshavealoadrun.HowIongistheloadrun/ThanksCasFrom:D'Angelo, VioletR.To:Kukielka, Casimir

Subject:

FW:DieselStartsDate:Thursday, September 25,19973:41PMSeeattachedinfo.From:Paley,RobertM.To:D'Angelo, VioletR.

Subject:

FW:Date:Thursday, September 25,19973:22PMFrom:Kukielka, CasimirTo:Paley,RobertM.Date:Thursday, September 25,19972:26PMBob,Ihavedieselstartsthrough3rdquarter96.Doyouguyshave4thquarter96tothepresentsIfsocouldyoupleasesendittome.Page1 1"Quarter1993IIy(~c.l~pf+41~DIESELGENERATOR RELIABILITY RESULTSJAN93-DEC95BYQUARTERSDIESELGENERATOR ABCDESTARTATTEMPTS5434.4STARTFAILURES00000LOAD-RUNATTEMPTS5333LOAD-RUNFAILURES00000STARTRELIABILITY 100%100%)PP100%1PP%2ndQuarter1993DIESELGENERATOR ABCDESTARTATTEMPTS35537STARTFAILURES000~00LOAD-RUNATTEMPTS3535LOAD-RUNFAILURES00000STARTRELIABILITY 100%)PP100%100%100%3rdQuarter1993DIESELGENERATOR AB.CDESTARTATI'EMPTS 63334I~1STARTFAILURES00000LOAD-RUNATTEMPTS53324LOAD-RUNFAILURES00000STARTRELIABILITY 100%)PP100%100%100%STARTTTEMPTS/748ABFileName:DQMRR4Quarter1993DIESELQENERATOR ASTART~LOAD-RUNE:0AD-RUNFAILURES>ATTEMPTS

+FAIDURES5iIo4'0'XPage6of)0SARTRELIABILITY/')

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starton6/19/91.'Iaintenance personnel verepr'esentmonitorkeyenginefunctions duringthestart.Aninstalled visicorder providedarocdrecordcfimportant dieselgenerator parameters.

Themonitoring conclusively identified checauseoftheslavstartasafuelcildeliveryproblem.Thisconclusion vasbasedonthefolloving:

0Fueloilpressurevasobservedtostaylovforanextendeddurat'onintothestartinsteadofrisingin2to8secondsasisnormal.0TheFuelControlRackremainedfullyopenforthescartduration(normaloperation) 0ObservedAirStartSystemoperation vasnormal.0Uislcorder tracesshovedallgenerator parameters tobenormal.'cc'Ig~r444NA4REFERENCE DOCLIMENTATION:

1.REPORTING FORM2.REPORTABILlTY ASSESSMENT 3.RESOLUTION FORM'.NPRDSREPORTAGILITY DETERMINATION tram~:rHScJ~~oQD~D/~QtiEc~WC~ICU~rtIOZOACCEPTANC0PLEAT7~-PiDATESR.COMPLIANCE ENG.ORDESIGNEE79'iDATEPORCMEETINGNO.ASST.SUPT.OFPLAr&DATE gsES$tGNIF[CANT OPERATING OCCURRENCE REPORTREPoRTNO.CONTINUATION FORM+'7/-/~cATTACHMENT BEINGUSEDFOR:PAGE~OF~CONTINUATION OFEVENTDESCRIP'"NCONTINUATION OFIMMEDIATE CORRECTIVE ACTIONSCONTINUATION OFASSESSMENT SUMMARYNO-REPORTABLITY DETERMINATIC"'

CONTINUATION.

OFEVENTCAUSECONTINUATION OFCORRECTIVE ACTIONSCONTINUATION OFACTIONSTOPREVENTRECURRENCE

+oTHERCaBasedoncheirvest'zation, themostprobablecauseofthe'C'DGslavstarthasbeenconcluded tobeexcessive airctappedinthefuelsupplvheaderexistingpriorcocheinit'alsurvei'ance runon6/19/91.Thecauseofa're!.t.apnenc vi.thinthefuelsupplvheaderisbelievedtobeduetoenin~eccicn pu"p'laving'en;..cdif'ccc'cn'vhich hadbeeninplenenced or.rhe'C'DCnAugust1990.Theflavingventmodificat'on hadbeeninstalled toaLleviate anin!eccionpumpoverheat'ing probler.atidleorlovpoverengineoperation bydrainingexcessfuelnilbac'ktothemainfueloilstoragetanks.Thenevflovingventshavebeen:ound ineffective invencingairfromthefuelheaderdur'ingscarcup.Thismodification hadbeeninstalled onEDCs'A'hrough

'D'etveen AugustandOctober1990.,ItshouldbenotedthatEDG'E',vhichisaf':thandspa.eEDCacSusquehanna, isofadiffetent designandd'dnocrequirethismodificacicn.'~'armeroutsidetemperatures experienced recentlyhavecadecheproblem-oreevidentasdecreased fueloilviscosity resultsfasterdraining.

thusincreas'ng therateatvhichairenterschefuelheader.Priortothe'C'G6/19/91slavstart,aconcetnforpotential voidingc..uelsupplvheaderhado):lvbeensurnisedforthe'D'DC.The'D'DChadexperienced aslovscarconIarch25,1991duringamaintenance troubleshooting run.Althoughtherootcauseofrhe'D'DGslovstartcouldnocbeconclusively determined, onepocencia) contributor vasidentified asthemodification tothefueloilflovingventlines.hsaresult,theflovingvertnesverete-modified toeliminate apotential fuelheadervoidingproblem,Similatre-modifications veredeveloped acthar.tinetabeimplemented asaprecautionary measureonthe'h','B'nd'C'DCsduringtheirnextinspection oucagcs.Thiseventvasdetetnined tobercpottablepcrIOCFR50.73(a)

(2)(vii)inthacasinglecondition resultedinaporential forcvoormorcindependent channelstobecomeinoperable inasinglesupportsystemdesignedtoshutdovnthereactor~maintainicinasafeshutdovncondition andmitigatetheconsequences ofanaccident.

Namely,airencrapmenc inthefuelsupplyheadersofcheEDCs,identified asthcmosr.ptobcblecauseofrhc6/19/91'C'DCslovstartandcausedbyamodification performed on'A'hrough

'D'DGsin1990,couldpotentially resultinstarttinesexceeding thoserequiredvhenthcenginesarestartedonceper31daysinaccordance viththeTechnical Specifications.

)~\}I'}Ir~}:Il.BOORRcordPackagePAGOFJ~O)}I4~I}iwMA04Mzi)o.

se.z.Osage!c)))

osESSIGNIFICANT OPERATING OCCURRENCE REPORT-CONTINUATION FORMREPORTNO./-Pl-~c.PA(it,~wc/RCHMENTBEINGUSEDFOR:CONTINUATION OFEVENTDESCRIPTION CONTINUATION OFIMMEDIATE CORRECTIVE ACTIONSCONTINUATION OFEVENTCAUSECONTINUATION OFCORRECTIVE ACTIONSCONTINUATION OFASSESSMENT SUMMARYNOREPORTABLITYDETERMINATION CONTINUATION OFACTIONSTOPREVENTRECURRENCE OTHER'EKC4i'M)CORRECTIVE ACTION'SInspections immediately afterthefailureverifiednofuelpiping1caksthatcouldhaveleadcotheslowscarc.AmanualFuelOilBoosterPumpstartvasinitiated codetermine ifapumporpressureregulator valveproblemvasevident.Fuelpressurerisevasnormalandvithin2seconds,demonstrating properoperation ofcheBoosterPumpandacompletely "solid"(noairvoiding)fuelsupplyheader.FuelControlrackoperation vasobservedtobenormal.Atroubleshooting scarcwasperfor=edandthe'C'DCstarttimevas7.7seconds.TheBoosterPumpvasobsezvedcoscartimmediately andstopafevsecondslacerpericsdesign.Fuelpressurevasobservedtorisetoracedpressurevichin3seconds.~~Themonthlysurveillance cescvasrepeaced.

Starttimevas7.6seconds.Properfuelsystemoperation vasagainobserved.

The'C'DCvasstartedfromambientconditions at0535hourson6/20/91.Thepurposeofthisrestartvastoverifythatnoocherfailuremechanism vasbeingaaskedbytherelatively shortshutdovntimesbecveenthepreviousstarts.Folloving thesuccessful start,the'C'DCvasdeclazedOPERABLE.

The'EDG~astestedon"eevery7daysinaccordance withTechSpeczquirenents.

Additionally, starttestswereimmediately performed onthe'A'nd'B'DGs.Asaprudentmeasure.EDGs'A'nd'B'erestartedonceeveryl5daysuntiltheflowingventre-mod'icationwascompleted onthex.Theflovingventre-modification wascompleted onal)EDGeby'7/27/91.

Resultsto-datehaveshownimprovements inEDGstarttimes.ThisSOORisrecommended forclosure.&8'P~Pi-coraW-WSOORRecordPackagePP,GOOF~

SSESSIGNIFICANT OPERATING OCCURRENCE REPORTEVENTREPORTING FORMREPORTNO,1"91"156PAGE1.OF2INITIATOR STADATEWORKGROUP8ARRYWPALMER06/19/91UNITSYSTEMNO.024BLDG.LOCATIONEVENTDATEAEANDTIME4467706/19/91145RXPOWER/CONDITION U11001u21001PRIORITYIEVENTDESCRIPTION IINITIALINVESTIGATION The'C'ieselgenerator wasdeclaredinoperable whenitfailedtostartwithin10secondsduringperformanceoftheDieselGenerator MonthlygQ.VOperability Test.Whileperforming theDieselGenerator MonthlyOperability Test,SO"024-001,"'he

'C'ieselgenerator failed.tostartwithintheTequired10seconds.Thestarttimestoreachratedfrequency, speed,andvoltagewere28,24,20.1secondsrespectively.

The'C'ieselgenerator wasdeclaredinoperableandLCO3,8.1.1wasentered.Electrical Maintenance wasnotifiedtoinvestigate.

SOQi~Pp~~--,t.-.FAG~L,"-:~~L:II'I'4~>I,~L~~IIMMEDIATE CORRECTIVE ACTIONSInitiated investigation.

EnteredLCO.nI~4'tj't(Lt,StItlICONSEQUENCES OFTHEEVENTHOAGYERSECONSEQUENCES AEACTOR5IIUTOOYYH REGUCKQPLANtCAPACITYIHCREASKQ OUTAQETIMEKOUtPLIEHT QAUAQKQfHQIHEfREOSAPEGVAAO FEATUREACTUATION

+TECHSPECACTIONSTATELIKNT ENTERKOtECHSPECYOLAT:OHI'EASQHHEL INJURKOORCOHTAUIHATKO OTIIEAFVENTIDENTIFIED BY~OPERATIONS PERSOttHf LIACPERSONNEL UAYHTKNAHCf PERSONNEL TECHNICAL STAPPPEASOHHEL HEALTHPtIYSC$PEASONNEL SECURITYPERSQHHKL O'THEA.i)'!~IIEVENTDETECTEDBYCONTROLROQttALAAII5+ittt~TURHQYERROUTINERQUHQ5VERtttCATIQH OPTASROOSEAYATIQN OPCONSKOUENCE5LOCALALARU~SUAVEILLAHCEtf$ttHGQQCUUfHTATIQHR'EVIEWCHAetCKOSSKAYATIQtt

'TIIEREVENTISQAREPEATOCCURRENCE THEOIILYKNOWNOCCURRENCE SnelPJltQAPASTOCCVRRENCE RUTIIQTTHESAMEth4VA~OAttt5~~PPIH~~tt.sAt))THfeOLimbus~+':b SOQR:",:.-.,r,-w:-...I,~~

PA8~0;=~@'COHSEQJE4=.S ASSESS~~Therewerenoadversesafetyconsequences asaresultofthisevent,oiiourdieselgenerators wereavailable atallticresmeetingtheminimumstationbackupemergency powersupplydesignbasisrequirement.

The"C"Diese'enerator didstarandwouldhavebeenavailable asapcMrsupplyifaneventhadoccurred.

Oncethedieselwasstartedairwaspurgedfrcmtheuelsystem.Subsecuent s~swiJoin-periodofapproximately twoweekswouldbeectedtobelessthantherequiiedtensecondstarttimebasedoninvestigations o=theproblem.mQ~.+~KMI~)~COPJKCTi~&

ACTiGNSCorrective actionistoinstalliXP91-9013C,FuelOilSystemVentLineModification.

Un"'lt"..enadification canbeinstalled the"C"DieselGenerator shallbestartedeverysevendays.Thereducedperiodbetweenstartswillmaintainthefuelupplyheaderpurgedofair.Similarly, DCP91-9013AandBshallbeinstalled ondiese).s"A"and"B"topreventasimilaroccurrence.

AlthoughaslowstarthasnotocvuraRoneither'fthesedieselstheyshallbestartedatanincreased frequency ofevery15daysasaprecaution untilthemxlification canbeinstalled.

TheuelOilSystemVentLineMcdification wasccrrpleted onDieselGenerator "D"on5/25/91.AC1'ZONS'IOPR~~ZRECURRENC" Thereareno5Heractionstopreventrecun~ce.

PASTSOLARSOORs1-91-068Insorcomprotri satn~~hit-Mpyenosafet

)cop'cocy

~~sod't'lof>ty~c~:.sultofthj.sstohec.ox~n..+1~fotMoor.reindepondent

-'.-~ye.ableinasinglesuppord'f:.~nd/~"coactor.maintainitin~safesdidexist.~itjr:ate theconsequences ofanaccioen.fun)cu'QplvheadersofEDGsstarttimesyhaver.ph~c;eroquirefulbvTechSpnsuchthis~ven".ctprtin+nemergency rjtuatinn.

nst,notedtnwhoCo~miss)qn ver10'CFP50.7 3(a)<2}(viIk LICENSEEEVEN~REPORTHLER)TEXTCONTINUATlON SSTI4ATSO SVIIOSHASHAle@)HSAIVsv~i~IHiOII4ATIOH COLLSCfIONIICOVSST'l00HAS.iOHWAAOCO44SHTSIISOAIIOIHO SVAOlH~STI4ATlTO1HIASCOAOSAHO1ltOIITS4AHAOSHSHT SIIAHCIIIi010IVSHVCLSAII+lOVLATOIIY CO44ISSIOH,

~,ASHIHOTOH.

OCTOSSS.AHOTO'IHl>AAtIIWOIIl IISOVCTIOH AHOJSCTISIS00IOAI.

OfAICSOA4AHAOIUIHT AHOSVOOST,WASIIIHOTOH.OC 10$01,~A,ITYH~IIIOOCIIlTHV40lATSIvfAALSIIHV40SAIll~IOVIHIIAL 4A+IVHHIh4~AOI<SI1SosuehannaSteamE'.ectricStdt>onflyIIf~~~~~ecWewWHIfCAme~SfIITIo5ooo3S7910070006QF0cADDITIONAL INFOR.'fATION ThisLicenseeEventReportalsofulillstherequirement forissuanceofaSpecialReportperTechnical Speciixcation 4.8.1.1.4 forallEDGfailures, validornon-valid.

FailedComponent Identification:

Noneidentified PreviousSimilarEvents:LER90-015-00 reportedaslovstartontheA'DG7/26/90.Thlfcauseoftheslowstartvasasheared1"reducerontheairstartheaderpiping.PLAS-455{SpecialReport)described aslowstartonthe'D'DGon10/30/90.

Nopositiverootcausewasdetermined.

PLAS-428{SpecialReport)described aslovstartonthe'E'DGon5/15/90.Thisslovstartvasattributed toairinfiltration intothefueloilpipingasaresultofaFuelOilBoosterpumpsuctionflangeleak-.

5, April24,1991cc:H.G.StanleyT.C.DalpinzE.<".Figard0'.Kuczynsk!

S.B.Kuhn8~R.)IeidnrnO'0"'cII..I.I'nImcrSIISc)',E)IAY4A STF.,":EI.FCTRICSTATIONDIESEI.GENERATOR A-FAILl'REDURINGSF.-""'-107 APRIL-"",1991I'.IS-3729>>FII.F.R48-6SF'07,'18~InthDieselGeneratnr AandC(orE>AutoStartnndESSBusesnnd.'.0Fncrgi;atinnnnLnssnfOffsirePnwcrwithaI.OCA-Plant Shutdown",

pcrfnrmstestingtnfulfillsevcrn1Technical Spccificntinn surveillance renu!renents.

Duringtheperformance nfSE-224-107 onApril22,1991.Diesr1Gencrntnr's "A"and"C"veregivennstartsignalviatheSEorocedure.

The"A"D!rsrIfniIcc!tcnch'.everatedspeed.Asnresult,rntec!vcItngenndfrccucnrv vc!rnlsnnntachievedandtheDieseldidnnrenrrgi.".r thecmergcnc",

bus.Subsequently.

theenginevnsmanuallytrippec!.

IInsednntheprnpcrilluminntinr.

cftestlightsandthenrnn'e.startofthe"C"Diesel,vebelievethatthefailureofthe"A"Dieseltnprnperlystartisassociated withaproblemwiththe"A"DieselandnctwiththcESP.logic..Iaintenance iscontinuing itstroubleshootinp,,investign'tion-w5:th-the"A"Dieseltobetterdetermine cause.Intheinterim-the.following issuesr.ustbeaddressed:

(I'ISubstitution o.the"E"Dieselforthe"A"Diese...<<asednntheisfn....atinn veLave."ebelievethefailurenithe"A"Dieselisassnciated withtheengineitself.Therefor.noadditional surveillance testing,aboveandbeyondwhatisnormallydnnefnrsubst'tuticn.

is,required.

',":I'.I.~tu<<.l SE-22>>-107.

Duetctheproblemwiththe"A"Dieselthetestcouldnetbecompleted.

Althoughpnrtionsnfthetestweresuccessfully cnrpleted.

itisourintenttoreperfnrm thesurveillance, initsentirety, vhrnthc"A"Dirse1isreturnedtnservice.IIC

~-pr<<)('l10<rabf1ftvtncrfn.n(the"A"1)f<snlA'4lease<l.ooth<in(nrmation<:chaveMchethef'ail>>reo5thc"A"Dieselassn<'fated

<:Ithth<rnpfn<frsr1fa>><lnotth<FSFIo<;fc.Rctcsrfnr,(orop<rahI11tvsh<in,dbc<'F.A)<iAO<,rr,<st<nninc<r<rrvr>>rv startI<iyI(So-0"l<-001.

('I~f<srIeeneratnr valid/nonval idfailure.AIIfn<lication.ndatristhatthe"A"Dfcs<'1rcccive<l avalidemergcncv startsirnal.Therefore, itsEailur~'o adecuatclv startandachieveratedc<.rditions

~fthfn10secondssl;:idbeconsidcre<!

avalidfailure."i')T..a'.,'Ir rk'lant'nefneerfnc

.Supcrvfs<

rjl,F.Rorh<'enfnrCo<<<pliancc Fncfnccr

~~~Pennsylvania PowerLLightCompanyTwoNorthNinthStreet~Allentown, PA18101~215I7705151Junelh,(990bcc:H.W.Keiser.TW-16A.M.MaleA6-2F.G.ButlerA6-2I'Cc.A6>>1J.R.Miltenberger A6-1Z.'N.'Z~yA2-4Nr.T.T.Hartinm~~,H.D.Wcxxhshick Spu..Off1.ce-b.xwi RegionalAdministrator, RegionIM.T,~nSusq.'I'raining CenU.S.NuclearRegulatory Ccnmission R.J.PregoSB-2475Allendale RoadSRC(Attn:

W.R.Licht)A6-1KingofPrussia,Pa.19406M.M.GoldenSSEST.J.NorkSSESW.G.HafnerSB-1iGHCSecretary SSES'OCFileSSES'.Dyckrttan

-Allegheny ElectricC~ratiP.O.sax1266SURXJEtVBNA STEAMEZZCZRICSTATI(NHarrisburg, PA17108-1266 SPECIALREFORIE'IESELFAILURE'IoJ,D,DeckerGeneralACHIEvE60HZFREQUENCY WITHIN10SErXNDS5HighlandPlace~-r28FILER41-2ehern,PA18017INPO~rdsCent'er-Suite15001100Circle75Pkwy.DocketNo.50-387AtlantaGA,30339LicenseLLo.NPF-14FearicanNuclearInsurers-TheExchangeSuite270Fazrt~pxn Ave.Fartttington, CT06(I32

DearMr.MartinAttn:

Librarian AilDieselGenerator

failures, validorinvalid,aretobereporttxt asrequiredbyRegulatory Guide1.108,SectionC.3.bandTechnical Specificaticn 4.8.1.1.4.

OnNay15,1990at,2125hoursthe'E'ieselGyrator(D/G)wasstart~Ainaccorda~withsurveillance testSO-024W01 following itssubstitution forthe'O'/Gc&cmbeingrenaved~serviceformaintenance.

D/G'E'sasparefithD/Gwhichcanbesubstit~foranyofthefour(A,B,CorD)D/G'satSusquehanna.

The'E'/Gfailedtoachievegenerator.

frc~mcy~f60(+3.0,-3,0)Hzwithin10seccax1sasxmp~BbyTechnical Specification Surveillance Requirazant 4.8.1.1.2.a.

The.'E'/G wasshutdown.

Limiting'.".yditica forOperation (M3)3.8.1.1wasentered.'Ihe'D'/Gwassubstituted backinforthe'E'/G.Thus,fourseparate, independent D/G'swereagainOPERABLEasrequiredbytheTechnical Specifications andIlD3.8.1.1wascleared.Thswasthesecondobservedabnormalstartofthe'E'/Ginalittlemarethanaonenenthperiod.OnApril10,1990thecbservedgenerator frequency didnotmeetitsrequiredvaluewithin10secondsduringastartattarpt.'Ibisstartatemptwasclassified asancnmalidtestbyOperaticas sinceithadfollowedrtaintenance activities wh'chhadbeewperfoxmed onthe'E'/G.

Follcwing the4-10-90sluggishstartthe'E'/Gfrequency metercircuitwasenrrnined, alongwiththegovernorfuelrack,airstart,speedsensingandotherccmponents andnoabnormalities werefound.priortothestart,theairsupplytothestartingheaderhadbeenconf~t'oberxrrmalatgreaterthanorequalto240psig.Asecondstartattempthadbeensuccessful withtheD/Gattaining itsrequiredparrrmeters withinthe10secondtimelimit.Thespecificcause'fthe4-10-90slowstartcouldnotbedeterrruned atthattime,however,theinvestigation didnotidentifyanyreasonfortheslowstarttobeclassified asavalidtestorfailure.Asubsequent startatterrrpt on4-12-90at1331hourswasalsosuccessful withthe0/Gattaining allrequiredparameters withinthe10secondtinelimit.Following the5-15-90slowstart,asecondstartattemptwasmadewiththe0/Gnrccessfully attaining itsrequiredparameters withinthe10secondtirelimit.Aninvestigation wasthenconducted andseveralaircontmlpressurerrgulatororshuttlevalvesweredisassembled, inspected andtestedalongwithstartingrelaylogiccircuitry.

Noabnormalities werefound.Finally,thefueloilsystempipirrgwasinspected andaloosesuctionflangeontheDCFuelOilBoosterPumpwasfoundtobeleaki;rgslowlyandisbelievedtohavebeendrawingairin,resulting inslowerengineacceleration onfueloilduringinitialstartattempts.

ineFuelOilBooster~suctionflangewasproperlytight~andanothersuccessful startofthe'E'/Gfollcwedat2040hourson5-17-90.Theloosesuctionflange,andresultant introduction ofairtothefueloilsystem,isbelievedtobethecauseofthe5-15-9.0surveillance testfailure.Topreventrecurrence, theMaintenance Sectionwillrranitortheintegrity ofthisflangeardotherfueloilsystemconnections tooptimizetheinspection pericdsforthesetypesofconnections consistent withtheD/Greliability programefforts.AsaresultofreviewoftheD/G4-10-90testrunclassification, performed subsequent tothe5-15-900/Gslowstart,PP&Lis~iewingitspracticeccncerning whenadieselrunisclassified asapostmaintenance testversusoperabilirg testandwiU..establish clearclassification directions consistent withRegulatory Guide1.108.Theloosepm'uction flange,discovered-after the5-15-90slowstart,isnewbelievedtobeapotential causeofthe4-10-90slurstart,whichwouldlendscrrcredencetoretroactive classification ofthe4-10-90slowstartasavalidtestfailure.Inthiscase,however,PPRLfeelsthatifbcrcislowstarts"areattributed tothissarw'.cause,itwouldnotbeinthebestinterestofthe0/Greliability effortstore-classify the4-10-90startattemptasavalid;.testfailure.'Ihiswouldresultinhavingtwo(2)failuresinthelast20,validtestsandatestintervalofonestartat,leastonceper7daysperTechSpecTable4.8.1.1.2-1, whichPPrLfeelswouldbeanunneoessary burdenonthe'E'/Gandunjustifiable franareliability standpoint.

duetoasingularcausalfactorwhichwascorrected.

Assuchthe4-10-90slowstartwillremainclassified asancamalidtest.ThispositionwasreviewedwiththeNRrSeniorResidentInspector.

D/G'E'asunavailable forsubstitution usefran2125

'I'4C~~~'8hourson'5-15-90 to2040hourson5-17-90.'Ihe5-15-90'E'/Gslewstartteaisccnsidered avalidtestandvalidfailure.TheDieselGenerator StartLogindicates thereisone(1)dieselfailureinthelast20validtests.Thedieseltestintervalisonestartat1";~tonceper31daysperTechnical Specification Table4.8.1.1.2-1.

~sr'~.G.StanleySuperintenden ofPlant-Susquehanna RRH/mmmmcc:U.SNuclearRegulatory Ccmnission DonxmntControlDeskWashirx~n, DC20555Mr.G.S.BarberSr.Residentinspector U.S.NuclearRegulatory Ccnmission P.O.Box35Berwick,PA18603-0035 A.2MotorDrivenPumpDataRHRpumpsNumberDemandsFailuresthru8990-97"totalthru89@90-97'otal 1A1B1C1D2A2B2C2D4082686763032565591731993721982154139925735612827440286'51337892293180000000000000002021~01123,Total148419483432426QDatathrough89isobtainedinVolurncIIISectionC.loftheIPE-199litDemaddataisobtainedfromEC-RISK-1060, Rev.1.FailuredataisobtainedfromreviewsofSOOR&CRsummaries.

Thesesummaries areprovidedinthisAppendixRHRPumpRunTimesTheRHRpumpruntimesandfailuresduringoperation wereobtainedfromtheIPRthrough1/1/90andestimated fromtheattacheddatathrough12/31/97.

ThenumberofpumpfailurestorunwereobtainedfromSOOR&CRsummaries.

Therunhoursforthepumpsfrom1/90through12/97wereestimated bymultiplying theclosedfractionreportedontheHRPDoutputbythenumberofhoursbetween1/90through12/97(70140hours).ThiswasrequiredbecausetheHRPDdatawasqueriedonlythrough7/31/96.RHRpumpstoRunNumberthru89fopen90-97totalFailuresthru8990-97total1A1B1C1D2A2B2C2DTotal57760.93148371061330290.9344627765636080.9543225683325960.9523365596125020.9473716621827040.9185749845320960.9255258735432350.92453288563000000002554636104616500,00

Emergency ServiceWaterPumps'ump DemandsNumberFailuresNumberFailuresABCD1559414721143929521302471422122271911310350Total542281306854TheESWpumpdemanddatawasobtainedfromEC-RISK-1060 Rev.1.Thefailuredatathrough1989wasobtainedfromEC-RISK-0503.

Rev.1.Failuressubsequent to1989wereobtainedfromareviewoftheSSPIandMaintenance rule'records.

Nofailureswerereportedsubsequent to1989.CoreSprayPumps.Dataforthecorespraypumpsisderivedfromunitonedata.CoreStartsFailuresRunFailureSprayHours1A1B1C1D2A2B2C2DTotal2152361902021811981601701553328545531749592532873613291330920284180RHRSWTheRHRSWstartsandrunhourswereestimated fromtheattachedHRPDdata.Thenumberswereestimated sincethedatadidnotcovertheentiresaneofthedata.Thereforitwasassumedthatthepumpswereusedatasimilarfrequency anddurationduringtheperiodswherethedataisabsentaswhenthedataisprovidedbyHRPD.Theratioofknowntoestimated dataisprovidedbelow.

RHRSWU14/30/987/1/837/1/839/10/8214.84110.8054790.948521/10/954/1/982/1/855/8/849.94520513.90685'0.715131A1B2A2BDemandOperating KnownEstimated KnownEstimated 8428881690217819785828145311532070999114483202526438991243117383297936065834770774 NDBH-71UNIT'1,PAGE138FORHRPDDATAREPORTTHEINTERVALBETWEEN0:00ON7/01/83ANO23:59ON4/30/9805/21/9808:20:34INTERVALDURATION:

30031:59:59POINT:EKZ43*-ESSBUS1ATOCSPRYPPASTATEDEFINITIONS:

0-OPEN1-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALS INOPEN202TOTALTIMEOPEN2190'OTALTIMECLOSED14622:19:18CLOSED26953:40:25 OUTOFSERVICEFRACTION:

0.9763078:19:34 15:09:51 qlNDBH-71UNIT1,PAGE156HRPDDATAREPORTFORTHEINTERVAI.

BETWEEN0:00ON7/01/83AND23:59ON4/30/98'5/21/9808:20:34INTERVALDURATION:

30031:59:59 POINT:EKZ50ESSBUS18TO'CSPRYPP8STATEDEFINITIONS:

0-OPEN1-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALS INOPEN222421313TOTALTIMEOPENTOTALTIMECLOSED556:29:13 CLOSED25766:03:42 4265:56:17 18:57:35IOUTOFSERVICEFRACTION:

0.967IIIIIxAPi//cj.I~~~-cfst~~r~4/'/i/i s~~~t4=g3>stirppowp~y'poW/f<LKP))3 UNIT1,PAGE171FORTHEINTERVALBETWEEN0:00ONHRPDDATAREPORT7/01/83AND23:59ON4/30/9805/21/9808:20:34INTERVALDURATION:

30031:59:59 POINT:EKZ57-ESSBUS1CTOCSPRYPPCSTATEDEFINITIONS:

0-OPEN1-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALS INOPEN179TOTALTIMEOPEN3170TOTALTIMECLOSED12705:27:11 CLOSED28392:27:56 OUTOFSERVICEFRACTION:

0.9871639:32:03 9:03:29 NDBH-71UNIT1,PAGE187FORHRPDDATAREPORTTHEINTERVALBETWEEN0:00ON7/01/83AND23:59ON4/30/9805/21/9808:20:34INTERVALDURATION:

30031:59:59 POINT:EKZ63-ESSBUS1DTOCSPRYPP0STATEDEFINITIONS:

0-OPEN1-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALS INOPEN190518411TOTALTIMEOPENTOTALTIMECLOSED638:21:49 CLOSEDI24480:56:

18OUTOFSERVICEFRACTION:

0.9575551:03:41 28:36:49 NOSH-71UNIT2,PAGE17HRPDDATAREPORTFORTHEINTERVALBETWEEN0:01ON1/01/90AND23:59ON7/31/96POINT:EKZ71-ESSBUS2ATORHRPPASTATEDEFINITIONS:

0-OPEN08/12/9610:31:40INTERVALDURATION:

57695:58:59 1-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALS INOPEN211TOTALTIMEOPEN3172TOTALTIMECLOSED42255:21:45 CLOSED54647:38:02 OUTOFSERVICEFRAG'TION:

0.9473048:20:57 14:18:41

NDBH-71UNIT2,PAGE35FORTHEINTERVALBETWEEN0:01ONPOINT:EKZ77-ESSBUS28TORHRPP8HRPDDATAREPORT1/01/90AND23:59ON7/31/96STATEDEFINITIONS:

0-OPEN08/12/9610:3I:40INTERVALDURATION:

57695:58:59 1-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALS INOPEN224TOTALTIMEOPEN4174TOTALT'IMECLOSED54231:41:10CLOSED52824:27:15 OUTOFSERVICEFRACTION:

0.9164871:31:4421:27:37 NDBH-71UNIT2,PAGE52FORTHEINTERVALBETWEEN0:01ONPOINT:EKZ82-ESSBUS2CTORHRPPCHRPDDATAREPORT1/01/90AND23:59ON7/31/96STATEDEFINITIONS:

0-OPEN08/12/9610:31:40INTERVALDURATION:

57695:58:591-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALS INOPEN203TOTALTIMEOPEN6146TOTALTIMECLOSED63255:17:11 CLOSED53354:53:21 OUTOFSERVICEFRACTION:

0.9254341:05:38 20:52:14 NDBH-71UNIT2,PAGE67FORTHEINTERVALBETWEENHRPDDATAREPORT0:01ON1/01/90AND23:59ON7/31/96POINT:EKZ87-ESSBUS2DTORHRPPDSTATEDEFINITIONS:

0-OPEN08/12/9610:3'I:40 INTERVALDURATION:

57695:58:59 1-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALS INOPEN188TOTALTIMEOPEN3158TOTALTIMECLOSED33278:59:02 CLOSED53285:57:40 OUTOFSERVICEFRACTION:

0.9244410:01:1923:12:38 POINT:EKZ41-ESSBUS1ATORHRPPASTATEDEFINITIONS:

0-OPENNDBH-71UNIT1,PAGE18HRPDDATAREPORTFORTHEINTERVALBETWEEN0:01ON1/01/90AND23:59ON7/31/9608/12/9610:30:46INTERVALDURATION:

57695:58:59 1-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALS INOPEN220TOTALTIMEOPEN3213TOTALTIMECLOSED10240:56:19 CLOSED53729:21:40 OUTOFSERVICEFRACTION:

0.9313966:37:19 17:52:03 NDBH-71UNIT1,PAGE35FORTHEINTERVALBETWEENHRPDDATAREPORT0:01ONI/01/90ANO23:59ON7/31/96POINT:EKZ48-ESSBUS18TORHRPP8STATEDEFINITIONS:

0-OPEN08/12/9610:30:46INTERVALDURATION:

5?695:58:59 CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALS INOPEN208TOTALTIMEOPEN5203TOTALTIMECLOSED10252:52:38 CLOSED53862:53:16 OUTOFSERVICEFRACTION:

0.9343833:05:43 18:04:50 NDBH-71UNIT1,PAGE49FORTHEINTERVALBETWEEN0:01ONPOINT:EKZ55-ESSBUS1CTORHRPPCHRPDDATAREPORT1/01/90AND23:59ON7/31/96STATEDEFINITIONS:

0-OPEN08/12/96103046INTERVALDURATION:

57695:58:59 1-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALS INOPEN163TOTALTIMEOPEN3155TOTALTIMECLOSEDll331:42:08 CLOSED55062:36:01 OUTOFSERVICEFRACTION:

0.9542633:22:58 15:57:35

NDBH-71UNIT1,PAGE64FORTHEINTERVALBETWEEN0:01ONPOINT:EKZ61-ESSBUS1DTORHRPPDHRPDDATAREPORT1/01/90ANO23:59ON7/31/96STATEDEFINITIONS:

0-OPEN08/12/9610:30:46INTERVALDURATION:

57695:58:59 1-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCIOSEDAVGTIMEINTERVALS INOPEN178116712TOTALTIMEOPENTOTALTIMECLOSED306:51:42 CLOSED54928:15:02 OUTOFSERVICEFRACTION:

0.9522767:43:57 15:32:56 A.3SummaryofRHRSOORsandCRs.

'NDBtl-71UNIT1,PAGE63HRPDDATAREPORTFORTHEINTERVALBETWEEN0:00ON7/01/83AND23:59ON4/30/9805/21/9808:20:34INTERVALDURATION:

30031:59:59 POINT:AEZ49-RHRSWPUMPABKRSTATEDEFINITIONS:

0-OPEN1-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALS INOPEN773TOTALTIMEOPEN69824TOTALTIMECLOSED18134:21:29CLOSED$13129l41:05OUTOFSERVICEFRACTION:

16902l18:54~J~gg20:05:52O.870~iI NDBH71UNIT1,PAGE122IHRPDDATAREPORTFORTHEINTERVALBETWEEN0:00ON7/01/83ANO23:59ON4/30/9805/21/9808:20:34INTERVALDURATION:

30031:59:59 POINT:AEZ50-RHRSWPUMP8'BKRSTATEDEFINITIONS:

0-OPEN1-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALS INOPEN735TOTALTiMEOPEN50760TOTALTIMECLOSED25147:08:05 CLOSED15500:55:43 OUTOFSERVICEFRACTION:

0.88814531:04:16 18:32:04 NDBH-71UNIT2,PAGE53FOR-THEINTERVALBETWEENPDDATAREPORT0:00ON2/01/85ANO0:01ON1/01/9505/21/9808:24:05INTERVALDURATION:

86904:01:59 POINT:AEZ49-RHR-SWPUMPABKRSTATEDEFINIONS:0-OPEN1-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALS INOPEN645TOTALTIMEOPEN64636TOTALTIMECLOSED73102:08:41 CLOSED72420:45:

12OUTOFSERVICEFRACTION:

0.83314483:16:47 20:27:23 NDBH-71UNIT2,PAGE101FORTHEINTERVALBETWEENPOINT:AEZSO-RHRSWPUMP8BKR05/21/9808:24:05HRPDDATAREPORT0:00ON2/01/85AND0:01ON1/01/95INTERVALDURATION:

86904:01:59 STATEDEFINITIONS:

0-OPEN1-CLOSEDTOTALNUMBEROFOPENTOTALIMPLIEDOPENTOTALNUMBEROFCLOSEDTOTALIMPLIEDCLOSEDAVGTIMEINTERVALS INOPEN579TOTALTIMEOPEN64612TOTALTIMECLOSED31115:49:13 CLOSED74472:32:33 OUTOFSERVICEFRACTION:

0.85712431:29:26 19:21:49 A.3SummaryofRHRSOORsandCRs.

UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUU SSSSSSSSSS SSSSSSSSSSSS SSSSSSSSSSSSSSSSSS SSSSSSSSS SSSSSSSSSSSSSSSSSSSSS SSSSSSSSSS 000000000000000000 000000000000000000000000000000000000000000000000000000000 00000000777777777777 77777777777 7777777777777777777777.000000000000000 000000'000000000000000000000000000:00000000000000000000000 00000000TTTTTTTTTTTT TTTTTTTTTTTT TTTTTTTTTTTTTTTTTTTT1111111111111111111111111111111 1111111111 JJJJJJJJJJ JJJJJJJJJJ JJJJJdJJJJJJJJJJdJJdJdJJJJJJJJJJJd0000000000 000000000000 00OO0000OOOOOOOOOOOOOOOOOOOOOOOO000000000000 0000000000 BBBBBBBBBBB BBBBBBBBBBBB BBBBBBBBBBBBBBBBBBBBBB 8888868886 88868886BB88BBBBBBBBBBBB 88888888888 000000000000000000 000000000000000000000000000000000000000000000,000000000000 000000006666666666 666666666666 6666666666666666666 666666666666 6666666666.66666666666666 6666666666 655556665565 555555655555 556666555565666 5565656'666 666685666655656666 65566666566 000000000000000000 0000000000000000000000'000'000000000000000000000000000000 000000008888888888 888888888888 8888888888888888888888888888888888888888888888888888

-8888888888 i~//US070TI JOB720588P~RJEWARPT,MAIL-GARYBURNS,SYSENG-2ND!1NOTIFY:US07JOBNAME:'S070T1USERID:US07SYSOUTCLASS:ADESTINATION:

RJEBOe~PRINTTIME:10.49.084PRINTDATE:02OCT95PRINTERNAME:RJEBOPR10PRINTERTYPE:PRTt~~START++~++START+++~+START+++START+++++START+++++START+>+*+START<++++ST*RT+++

UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU.UUUUUUUUUUUUUU UUUUUUUUUU SSSSSSSSSS SSSSSSSSSSSS SSSSSSSSSSSSSSSSSS SSSSSSSSS SSSSSSSSSSSSSSSSSSSSS SSSSSSSSSS 000000000000000000 00000000000000000000,0000000000000000000000000000000000000 00000000777777777777 77777777777 77777777777777777777770000000000000000 000000000000000000000000000000000000000000000000000000000 00000000TTTTTTTTTTTT TTTTTTTTTTTT TTTTTTTTTTTTTTTTTTTT111111111111111111111111111111111 1111111111 JJJJJJJJJJ JJJJJJJJJJ JJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJ0000000000 000000000000 OOOOOO-OOOO.OOOO00OOOOOOOOOOOOOOOO000000000000 0000000000 BBBBBBB8888 BBBBBBBBBBBB BB88BB88BBBBBBBBBBBBBB BBBBBBBBBB 88BBBBBBBBBBBBBBBBBBBBBB BBBBBBBBBBB 000000000000000000 000000000000000000000000000000000000000000000000000000000 000000006666666666 666666666666 6666666666666666666 666666666666 666666666666666666666666 6666666666 555555555555 555555555555 655555555555555 5555555555 555555555555555555 55555555555 000000000000000000 00000000000000000000000000000000'000000000000000000000000 000000008888888888 888888888888 8888888888888888888888888888888888888888888888888888 8888888888 44//US07071 JOB720588'RJE WARPT',MAIL-GARYBURNS'YS.ENG-2NDNOTIFY:US07JOBNAME:US070T1USERID:US07SYSOUTCLASS:ADESTINATION:

RJEBOPRINTTIME:10.49.08PRINTDATE:02OCT95PRINTERNAME:RJEBOPR1PRINTERTYPE:PRT4++START+++++START++++START++e++START++eeeSTART+<+++START+++++START~~~

W4r4<+START++++>

PMIS:4910/02/95SUSQUANNASESSOORSUMMARYREPORTFORSYS49-UNIT0/1SORTEDBYUNIT,ISSUEDATE&SOOR/IPMI5PAGE1SYSSOORIiOCCURDATEDESCRIPTION 4984-081OTHERAFFECTEDSYS:644986225OTHERAFFECTEDSYS:544987-395OTHERAFFECTEDSYS:514988-140OTHERAFFECTEDSYS:5052491-89-339OTHERAFFECTEDSYS:491-91-089/OTHERAFFECTEDSYS:491-91-266OTHERAFFECTEDSYS:512/09/847/23/057/02/875/05/8811/08/894/17/9110/18/91RHRPUMPSEALWTRCOOLERSAREINADEQUATELY DESIGNED.

2/9/84EVALCOM.MTG.RECOMMENDS 10CFR72REPORT,PLI-31058.

THESEALWATERCOOLERSWEREREPLACEDWITHNEWSHELLSMADEOFCASTSTEELVS.CASTIRON.NQAREVIEWREQ.DELETEDPEROPS-5R.S.CI.QSEDHR,ESWFLOWTRANSMITTERS COMPLETELY COVEREDUNDERWATER.AUSED~BY>

GROUNDWATERLEAKINGBYSEALSINMANHOLES.

WRAPS-0$l53PWjtITTENTODETERMINE REPAIRMETHODS.,EMPT./PM ISSUEDTOPUMPDOWNMANHOLES.

WAS65301&S73632C)OS)P"SEALEPfEPPTRATIONS.

POSTLOCABYPASSLEAKAGEWATERSEALBARRIERISSUSPECTFOR.BRANCH'LINES CONNECTED TORHRANDCORESPRAYSYSTEMS.LICENSING REVIEWEDTHECONDITION ANDDETERMINED THATITWASNOTREPORTABLE.

REF.NCR87-0288FORFURTHEREVALUATION CLOSEDPOTENTIAL REPORTABILITY RE:HPCI,RCIC&RHRLIMITORQUE OPERATORS.NUCLEARDESIGNCONCLUDED THATTHEAMOUNTING ARRANGEMENT WASNOTENVIRONMENTALLY QUALIFIED.

LICENSING DETERMINED THATTHECONDITION ISNOTREPORTABLE PERPART21.REFNCR'588-110,181,182&267.CLOSEDCONTAINMENT BOUNDRYVALVECAPFOUNDREMOVEDFROM151077&251077 REFNCR89-0697AND701.REFEWRM00020WHICHDETERMINED THATTHECONDITION DOESNOTVIOLATEPPLCOMMITMENT TOGDC-56.CLOSEDRWCUBLOWDOWNMAYNOTBEAVIABLEMETHODOFHEATREMOVALFROMCONTAINMENT BELOWAPPROX450PSIRXVESSELPRESSURE.

ERTPERFORMED.

REFPLI68259.ROOTCAUSEOFTHISOCCURRENCE WASINADEQUATE COMMUNICATION.

THISCONTRIBUTED TOTHEFAILURETORESOLVETHETECHNICAL OPINIONDIFFERENCES BETWEENNUCLEARFUELS,SYSTEMENGINEERING ANDOPERATIONS.

THISISCONSIDERED TOBEANISOLATEDOCCURRENCE BETWEENTHESETWOWORKGROUPS.CLOSEDRHRANDCORESPRAYVALVESSUSCEPTIBLE TOPRESSURELOCKING~RECOMMENDED CORRECTIVE ACTIONISTODRILLAHOLEINTHEDISKOFEACHAFFECTEDINJECTION VALVE.REFDCP919080THRU9083'CP91"9080AND91-9082CORRECTED FORUlDURING6RIO.DCP91-9081AND91-9083INSTALLED DURINGU2BRIO.CLOSEDTOTAL:7

PMIS:EVR49 10/02/95SUSQUEHANNA SESSOORSUMMARYREPORTFORSYS49-UNIT0/1SORTEDBYUNIT,ISSUEDATEdSOORttPMISPAGE2SYSSOORtt4983-063/)/~wc'.<

498306449,8508849'3-12949C.83-15549,v833344983-3704983-3734984-0574984-O7O4984-1384984-2044984-298OCCURDATE2/16/832/16/832/18/834/08/835/13/8311/06/8312/03/8312/07/831/29/842/03/843/21/844/29/847/21/84DESCRIPTION ALTEPABKRTRIPCAUSEDLOSSOFS/DCOOLING.ALTERNATE POWERSUPPLYTOTHERPSISNOTISOLATEDFROMTHEPLANTELECTRICAL SYSTEMANDTRIPSONSMALLVOLTAGEORFREQUENCY OSCILLATIONS.

'QAREVIEW(EQ.DELETEDPEROPS-5R.S.CLOSED'"1ALT'PABKR.TRIPCAUSEDLOSSOFRHRS/DCOOLINGALTERNATE POWERSUPPLYTOTHERPSISNOTISOLATEDFROMTHEPLANTELECTRICALi S)STEMiTRIPSONSMALLVOLTAGEORFREQUENCY OSCILt:ATiONS.'"

~'ttAttEVIEWREQ.DELETEDPEROPS-5R.B.RHR"'BhINJ.VALVEHIGHVIBRATION.

(F017VALVES)THEOPERAiTit(GJPROCEDURES HAVEBEENMODIFIED.

PgR82"'051)'l('lSQ't)PFULE)

RELEASED8/7/84."INQ'4+REVIEW

<REQ)'DELETEDPEROPS-5R.5.pAO(I'~>'itHHRHfPISCHARGE VALVE1F0038.WOULDNOTOPEN.TEPTORWAS"tt'Ekg)L'CED.

WA-S31070 NR'REVIEW'RP'Q.DELETEDPEROPS-5R.S.C)OSPD"

5/DCOOLINGHIGHFLOWSWITCHWASOUTOFTOLERANCE LIMITS.BARTONMODEL28IBASETPOINTDRIFT~CCALIBRATION DATAISBEINGTRENDED-REFSOOR2BPP49WHICHISMASTER'CLOSED.RHRLOOP'8'ECLARED INOP-CHECKVALVE)F0318WOULDNOTSEAT.CAUSED'BY MIS"A).'1GNt(ENT" OFTHEVALVEDISCANDABENTHINGEPIN.EWR')DSEA 60003'7tPROVIDED CORRECTIVE ACTION.PHRSYS"VLVSWEPE'f(SPECTED/REPAIRED ASNEEDED.tCLOSED>I8WhiRHRVALVESFAILEDTOMEETACCEPTANCE CRITERIA.

THE).EAKAGEPAST'RHRTESTABLECHECKVALVES(1F050Ad8)ANDE'QUA).12ING'VAKVESV'((F122A d8)WASTOOGREATTOBEMEASURED.

PERMANEN'P(CHANGE'MADE TOS0-100-019..

tCLOSED(DCC 1.8IRHRCONDUOTIVI TYINSTRUMENT CR1.2351INACCURATE.

EMOSWRITTQMtTOS/A(SANDOPSABOUTREPORTING WHENCHEMISTRY gi'TAKENG'SAtlPL'ES~.

CL6SED/DOCS(

'.'1ECIRCUITSt(OTISOLATEDFORRHR.10CF(50.'65E AND)OCfR21REPORTSWEREMADE~RPF'1SOOR'-8/~0)2:CLOSEDI)VRHRPUMP.TRIP.QNDVALVESF008dF009CLOSEDWITHNOALARMS.PROBhBf.'E CAUSEFROMHIGHFLOWASARESULTOFVALVINGOPERATIONS.

SYSeWASt(E)klPNjEDiTO SERVICEWITHOUTINCIDENTa"-C'LOSPD'i.".4!r

'4'Plt~RHRSHUTDOtlCOOLINGISOLATION ACTUATION, HIGHFLOWSUSPECTED SPURIOUSi ATUATIONOFRHRDIFF.PRESSURESWITCHESCAUSEDCLOSUREOF'SH,TDOWtCOOLINGINBOARDANDOUTBOARDISOLATION VALVES.THISWAS'iAIACTA/ION'DFANENGINEERED SAFETYFEATURE.ESF~6'EVET'HA'NOT'RE-OCCURRED ASOF10/6/86NOFURTHERACTIONSAREPLANEO.'EFMASTERSOOR2-86-171.

C,LOSEP'A'OOP RHRUNITIIINOP.UNABLETOCOMPLETES0-149-002.

CLOSEPRHRLOOP'BiTESTCHECKVALVE1F0508REC'DDUALINDICATIONS ISIWASPERFORMED ANDENG.ANALYSISWASMADETHATVLV.FUNCTIO((S PROPERLY.

PMIS:E4910/02/95'USQUE

>...SESSOORSUMMARYREPORTFORSYS49-UNIT0/1SORTEDBYUNIT,ISSUEDATE&SOOR11PMISSYSSOORNOCCURDATEDESCRIPTION 4984299OTHERAFFECTEDSYS:4984-3167/21/848/20/84CLOSEDRHRLOOP'8'QUALIZER VALVE1F1228DUALINDICATION.

VLV.VERIFIEDCLOSEDBYVENTINGUPSTREAMPIPING,NOPRESSUREORFLOWWASOBSERVED.

WA544361WILLREWORKTHEPOSITIONSWITCHWHICHISSUSPECT.REQUIRESCONTAINMENT ENTRY.CLOSEDRHR"8INOPDUETOFAILEDISI.SO'SWILLBEREVISEDTOREFLECTTHE96HOUREVALUATION STATEDINTHEASMECODE.CLOSED.OTHERAFFECTEDSYS:4984-47412/19/84-49j~'84-344 M="-'-9/'11/84'A'HRSUPPRESSION POOLCOOLINGFULLFLOWTESTVALVEINOP.VALVE1F024A.ACTUATORPINIONGEARKEYWASMISSING.WA544663REPLACEDKEYANDRESTOREDSYSTEM.NQAREVIEWREQ.DELETEDPEROPS-5R.B.CLOSED'RHRF028AVLV.BINDINGANDREPEATEDLY TRIPPINGBREAKER.INVESTIGATEO BY.MNT&PACKING'WASLUBED&ADJUSTED, VLV.THEN"OPERATED PROPERLY.

CLOSED4984-4834985-049OTHERAFFECTEDSYS:64834985-09249e85-1324985-1544985-1454985-1504985-18312/25/842/01/853/04/854/27/855/15/855/16/855/20/856/08/86"HIGHPRESSISOLATION OFRHRSDCOOLING,HV151F009 WOULDN'TCLEARNECESSARY TOISOLATE/VENT PRESSSWITCH831-N018A TOOPENVALVE.PMR86-7026WILLPROVIDECORRECTIVE h1EASURES WHICHWILLBETRACKEDBYMASTERSOOR2-85-032.

CLOSEDEXCESS,FLOWCHECKVALVESFAILEDSURVEILLANCE TEST.XV-821-F072C FAILEDTOISOLATE,XV-831-F057A FAILEDTOREOPEN&XV-831-F0038 FAILEDTOISOLATE.WAS50048REPLACEDBLOWNFUSE.CLOSEDTODCCRADIOGRAPHY SOURCEWOULDNOTRETRACTINTOIT'SHOLDER,DURINGRHR178VALVEWELDINSPECTOIN.

++CANCELLED/DOC~~

BYPASS1-85-046REMOVEDCAUSINGLOSSOFSHUTDOWNCOOLINGISOVLVROOTCAUSEWASSTATESLINKSWEREOPENEDINPNL.1C201TOIMPLEMENT PMR82-434,ANDTHISACTIONWASNOTDOCUh1ENTED.

WA-551134 INVESTIGATED ANDCORRECTED.

REF.MASTERSOOR2-85-112CLOSED.RHRINIATIONPERMISSIVE SETPOINTPS-831-1N0188 OUTOFTOL.FOUNDDURINGSI149-304,WASRE-CAL'ED.

SAT.CAUSEDBYINSTRUX1ENT DRIFT.CLOSEDRHRMINFLOWVALVETIMEDELAY,FOROPENING,DIDNOTFUNCTION.

1F007A.STATUS:REF.MASTERSOOR1-85-150CLOSED1F007AOPENEDTOSUPPRESSION POOLWHILERUNNING'A'HRPUMPFOPSHUTDOWNCOOLING..

WA-551403 INVESTIGATED ANDEVENTCOULDNOTBEDUPLICATED NORACAUSEDETERlhIPPD.'LOSED WATERHAMMEROCCURREDWHEN'A'HRPUMPWASSTARTED.DUETOPIPING'EING DRAINEDAND-OP-149-00'OT BEINGPERFORMED PROPERLY.

)NVOI.VED OPERATION'S PERSONNEL WERECOUNSELED.

PMI6:R4910/02/95SUSQUEHANNA SESSOORSUMMARYREPORTFORSYS49-UNIT0/1SORTEDBYUNIT,ISSUEDATE6SOORNPMIS:PAGE4SYSBOORNOCCUR.DATEDESCRIPTION 4985-2184985-277OTHERAFFECTEDSYS:594986-0094986-03149860554986-0624986-0654986-0804986-1017/12/859/10/851/08/861/31/862/19/862/28/863/01/863/16/863/31/86ITEMISONOPSAGENDA85-09.CLOSEDTODCCRHRROOTVALVESFOUNDCLOSED'OL DIDNOTINCLUDETHEM.RV-1-FT1N013 6RV-2-FT-1N013 FORFI-1R607.

PCAF1-85-0895 CORRECTED CONDITION.

CLOSEDTODCCRHR/HPCIVLVEXERCISESURVSE149-2056SE-152-201 NOTPERFORMED ASREQUIRED.

INADEQUATE REVIEWOFPMISANDSCHEDULING ERRORSCAUSEDTHESURVTOMISSED.THISISMASTERSOORFOR1-85-276, 2386253.OPSISSUED50-153-003; REVISED50-013/113/213-009, REPLACEDSE-111/211-201,465 WITH"SO"PROCEDURES CLOSEDRHRFLOWRECORDERFR-E11-1R608 FOUNDOUTOFTOL.INSTRUMENT ISUSEDDURING50-149002,OPSINVESTIGATION REVEALEDTHAT-RESULTSWERENOTAFFECTED.

CLOSEDFLOWINSUPPRESSION POOLSPRAYWASNOTED,1F0278NOTSEATED'OLLOWING PERFORMANCE OF50-149-005.

PROBABLECAUSEWASTHATTHEHANDSWITCH WASNOTHELDINTHECLOSE"POSITIONEVENTTOBERE-VIEWEDBYLICENSEDPERSONNEL.

SO-149-005REVISED.CLOSED'8'HRSWINGBUSMGSETTRIPPED,WASHOTWHENTOUCHEDBYOPERATORINVESTIGATING EVENT.LCOENTERED.NOPROBLEMWASIDENTIFIED, NOFURTHEROCCURRENCES WEREEXPERIENCED'ND HEATWASDETERMINED TOBENORMAL.CLOSEDJUMPERSINCORRECTLY PLACEDPERSE-149-001 WHILETESTINGRHRBKRSJUMPERWASPLACEDONTHEWRONGSIDEOFADROPPINGRESISTOR.

WA-552586 INSPECTED FORDAMAGE,NONEWASFOUND.INVOLVEDPERSONNEL REVIEWEDTHEEVENT,ANDPROCEDURAL WORDINGHASBEENREVIEWED.

CLOSED'A'HRPUMPOPERATEDWITHOUTTHRUSTBEARINGCOOLINGVALVEDIN.VALVE111-129AWASCLOSED'UE TOIMPROPERTRACKINGOFVALVESTATUSONWAT53113ANDINCOMPLETE EQUIP.CHECKBY'PSPRIORTOSTARTING.

REF.HPESREPORT86-010.MAINTANDOPSPERSONNEL REVIEWEDTHEEVENT.CLOSEDRHR'A'OOPMINFLOWVALVEACTUATION LOWEREDVESSELINVENTORY WHENITAUTOOPENEDANDDIDNOTRECLOSECOMPLETELY WITHHANDSWI.TCHOPERATION, HV"E11F007A,DUETOINADEQUATE SPRING-PAC PRESSURE.

WA560484REPLACEDSPRING-PAC WITHONEOFAHIGHERRANGE,ANDADJUSTEDTORQUESWITCHSETTINGTOAHIGHERLEVEL.CLOSEDRHR1F007AREPEATEDLY STROKEDOPENAFTERITWASCLOSED.EVENTOCCURREDWHILERESTORING ESS18{1A202).1F007AISTHEMINFLOWVALVETOSUPPRESSION POOL.CAUSEDBYOPENINGSUPPLYBKRS.FORHV-1F00849.

PCAF1-86-451WRITTENTOPROHIBITOVERRIDING SYS/EQUIPMENT CONTROLS.

CLOSED~c>A~~C49A86-2707/15/86~'"-49~'~>,87, 604'~/V'P~.""-"~-.-'-"

'-.*'."4/04/h7RHRSUPPRESSION POOLSPRAYPUMPSUCTIONPI-E11-1R002COUTOFTOLFOUNDDURINGPM01850-01, INSTRUMENT ISUSEDDURINGTECHSPEC4.0.6PUMPTESTING.INSTRUMENT,WAS REPLACED6SO-149-002WASPERFORMED WITHRESULTSSAT.CLOSED:RHR'SHUTOFF VALVE.1FONBBWOULb'NOTSTROKEOPEN~f/DURINGATTEMPTTOINITIATESUPPRESSION POOLCOOLING.'j

PMI5:4910/02/95SUSQUENASESSOORSUMMARYREPORTFORSYS49UNIT0/1SORTEDBYUNIT~ISSUEDATE&SOORNPMISPAGE5SYSSOORNOCCURDATEDESCRIPTION 4987-0084987-0141/08/871/13/87AHIGHERSETOFTHERMALOVERLOADS WEREINSTALLED VIASETPOINTCHANGE.MASTERSOORFOR1-87-008.

WAS73379IUSPECTED VALVEWITHOUTANYPROBLEMSFOUND.CLOSEDRHRF0288VALVETHERMALSTRIPPINGDURINGSUPPPOOLCOOLINGATTEMPTS.

REFMASTERSOOR1-87-004.

CLOSEDRHRMINFLOWCHECKVLVS161F046A-D FAILEDSO-149-002DUETOLACKOFINSTALLFD INDICATION ONFLOWPATHPCAF1-87-0049 ISSUEDFORSO-149-002TOCLARIFYINSTRUCTION TOTESTCHECKVALVE.PCAF2870064ISSUEDFORSO"249-002.

CLOSED4987-0754987-100~<<49<<g~j87-,144<<ij=.

t&a,~.,"w'Wn:~%)~..49<>~a187~46.3'

~3/15/87RHRSUPPRESSION POOLCOOLINGVALVE1F0248FAILEDTOFULLYCLOSF.SYSTEMWASSECUREDBYCLOSINGTHE1F0288ISOLATION VALVEVALVE1F0248TORQUESWITCHSETTINGWASINCREASED WHICHALLOWEDVALVETOFULLYCLOSEAGAINSTSYSTEMDP.EWRM60727WILLDETERMINE IF,ALARGERMOTOR/ACTUATOR SHOULDBEINSTALLED.

REF.EWRMIS86-727ANDEWRM71191(KENANDERSON)

WA570503RAISEDTHETORQUESETTINGFROM21/4TO31/4ANDTHEPROBLEMHASNOTRE-OCCURRED.

.CLOSED4/07/87RHRHV151-F0288 WASFOUNDTOHAVEABONNETLEAKFOLLOWING SE-159-076.

DUETOMISALIGNMENT OFTHEBONNETWHENINSTALLED ONTHEVALVE60DY.VALVEWASREPAIREDANDPROPERLYALIGNED.INVOLVEDPERSONNEL RECEIVEDTRAININGTOPREVENTRECURRENCE.

CLOSED4'l?5/26/87RHRHV-151-F028A WOULDNOTOPEN,ELECTRICALLY:.DURINQ~VAI VE~(ZINEUP fj.TOINITIATE.SU)PRESSION'POOL<<:

COOL'ING.

"THERMALOVERLDADS

'WERE*FOUND.rTRIPPBO'!c'PCA'F (87.0500ISSUEDTOPREVENTRECURRENCE

~REF.BOOR1-87-153CLOSED~C~6/11/87RHRF028AVALVEFAILEDTOOPENDURINGSUPPRESSION POOL~~gM4COOLINGVALVEALIGNMENT.

WAS70085,S70633&695INVESTIGATED f/WITHNOPROBLEMSFOUND.PCAF<<1-87-0500

&EWRM79227ISSUED.REF.MASTERSOOR1-87"209.

CLOSED49"'.87206..~4987-209OTHERAFFECTEDSYS:4987-2484987-2528/03/878/04/879/13/879/17/87RHRHV151F015A WOULDNOTOPENELECTRICALLY ORMANUALLYWAS7480214(VESTIGATED WITHNOABNORMALITIES FOUND.ADEADMANSWITCHWASINSTALLED ANDTHEVALVEWASSTROKEDSEVERALTIMESWITHNOBINDINGORMISALIGNMENT OBSERVED.

THERMALBINDINGISTHEAPPARENTCAUSE.WA563756INSPECTED DURING3RFIO.F015APERFORMED SATDURINGSE-149-001.

CLOSEDRHRHV1F0288FAILEDTOOPEN,BKRTHERMALOVERLOADS TRIPPEDPFR'5SUBMITTED TOINSTALLLARGERVLVOPERATORMOTORS.OP-149-005 REVISEDASANINTERIMMEASURE.TOALLOWVALVEOPENINGUNDERSTATICCONDITIONS.

MASTERBOORFOR1-87-153.

N.ACT:MAINT-REPLACERHR28A&BVALVEACTUATORS FORUNIT1&2.MAINT.TOWRITEWA'S.(KVCACTION2/14/89).(NPEISPERFORMING ADESIGNREVIEWOFMOV'S.REFNRCGENERIC'ETTER89-10,RIEE88-0269&0270.CLOSEDTHESTARTINGOF'C'HRPUMPRESULTEDINACONTAINMENT ISOLATION ESFACTUATION WHENTHEF008VALVECLOSED,APPARENTLY DUETOTHEPUMPSWAPBEINGPERFORMED ATAHIGHFLOWCONDITION.

PCAF'S1-87-0931&2-87-0275 ISSUED.REFWA578192.CLOSEDWIRINGERRORFOUNDONRHRRELAY62AX-20409, TB81-43LINKDIDNOTHAVELEADSLANDEDONBOTHSIDES.INVESTIGATION BYSTAFFENGINEERING FOUNDTHATWIRINGISCORRECT.MNTPLANNINGGROUPATTENDEDANOUTSESSION.CLOSED

PMI5:4910/02/95SUSQUNNASESSOORSUMMARYREPORTFORSYS49-UNIT0/1SORTERBYUNIT,ISSUEDATE&SOORtt'Rth$SSYSBOORNOCCURDATEDESCRIPTION 49873174987-3314987-2854987-2944987-.296'9 87-3054987-3124987-3154987-323OTHERAFFECTEDSYS:58594987-35049A88-00910/09/8710/09/8710/13/8710/16/8710/19/8710/22/8710/27/8710/28/8711/01/8711/17/871/11/88RHRCUTIHPS-831-1N0188 SETPOINTWASNOTREPEATABLE DURINGSI-149-304.

WA578145REPLACEED SWITCH.SI-149"304SPCTIQN6.2"WASPERFORMED SAT.CLOSED'A'HRHEATEXCHANGER SPILLEDWATERDURINGVALVEEXCHANGE.

CAUSEDBYHV)1216ALEAKINGBYIT'SSEATANDCHECKVALVE112009NOTCHECKINGREVERSEFLOW.REF.NCR86-0871.SYSKEEPFILLINJECTSHIGHERPRESSUREONTHELOWPRESSURESIDEOFHV11215A, CAUSINGLEAKAGE.CLOSEDINCORRECT RHRVALVEWASDETERMINATED BYWORKERS,'WA S71080HV161F0288WASDETERMEDRATHERTHANHV-161F028AASSPECIFIED ONTHEWA.CAUSEWASWORKGROUPOVERSIGHT.

WORKGROUPREVIEWEDSOOR&SAFETYMEMOAS14.HPES87-016GENERATED.

MTGM-060REVISEDANDOJTWASHELD.CLOSEDINCORRECT WIRINGONRHRF008PRESSURESWITCHWASFOUNDDURINGATTEMPTTOINITIATESHUTDOWNCOOLING;WA578196,REWIREDSTATESLINKSTONORMALCONFIG.PS-831-1N0188 REPLACEDANDTESTEDPERWAS78146.CLOSEDANOPDRVEXISTEDWHENRHRF004AWASOPENED&F006AMOVREMOVED.INCONJUNCTION WITHTHEF008&F009VALVESOPEN.THECONDITION WASRECOGNIZED BYOPSINATIMELYMANNER&THEF004A&CVAI.VESWEREIMMEDIATELY CLOSED.UNITCOORDINATION REVIEWEDTHEEVENTANDAD"QA-326 REQUIREMENTS.

CLOSEDRHRHEATEXCHANGER GASKFTLEAKEDDURINGTP-149-034

'YDROOFRHRDIVI.WA573533RETORQUED THEFLANGESTUDSANDSUBSEQUENT HYDROTESTEDSAT.CLOSED'A'HRPUMPBREAKERFAILEDTOTRIPDURINGSE-149-001.

ADETERMINATED CABLEWASFOUNDONVALVE151F006A.

CAUSEDBYOVERSIGHT OFTHEWORKGROUP.INVOLVEDPERSONNEL REVIEWEDAD-QA-500

&502ANDMT-GM-050 CLPSEDINADVERTANT S/ARTOFRHRPUMP1ADURINGSE-151-001 WHEN'-JUMPER=INSTALLED PERTHETEST"POPPED"OFFANDAPPARENTLY STRUCTERMINATION CCC3-15,STARTINGTHEPUMP.INVOLVEDPERgONEL>REVIEWED THEEVENT.4CL'0ED'f1AUXBUSPOWERSWITCHING RESULTEDIN1/2SCRAM&ESFACTUATION VfHEttHE RHRSHUTDOWNCOOLINGISOLATION VALVECLOSED.AITttACFERiOFTHE18250/18260 480VACLOADCENTERWILLCAUSEPLOSUEOFHV-151-1F008 WHENRPSBUS"8"ISPOWEREDFROMALTRNATESUPPLY,PCAF'S2-87"0318

&1-87-1171 INITIATED TOADDTHISPRECAUTION.

C)OSED'XRECIRCVLVSHV-143F031A&32ADIDNOTCLOSEUPONRHRDIVIMANUALINITIATION DURINGPERFORMANCE OFSE-149-001.

THISPROBLEMCAUSEDFAILUREOFACCEPTANCE CRITERIA.

APPARENTCAUSEWAS'UMPERS WEREINSALLEDONINCORRECT TERMINALS.

ARETESTWASPERFORMED SAT.TESTINGGROUPREVIEWEDTHEEVENT.CLOSEDRHRPUMP8SUCTIONGAUGEPI-E11-1R002 FOUNDOUTOFTOLERANCE DURINGWA586017ANDWASRECALIBRATED.

THISINSTRUMENT ISUSEDFORPERFORMANCE OF50-149"002, OPSSTATESALLACCEPTANCE CRITERIAWASCOMPLETED SATON1/16/88.CLOSED PMIS:4910/02/95SUSQUENNASESSOORSUMMARYREPORTFORSYS49-UNIT0/1SORTEDBYUNIT,ISSUEDATEdBOORTTPMISPAGE7SYSBOORTTOCCURDATEDESCRIPTION 49A88-139OTHERAFFECTEDSYS:83A4988-1674988-171OTHERAFFECTEDSYST49890074989-0104989-0204989-0464989-098OTHERAFFECTEDSYS:4989-111OTHERAFFECTED'YST 12E498911449891344989-1294989-1355/04/886/01/886/02/881/07/891/07/891/13/892/10/893/31/894/06/894/09/894/12/894/16/894/21/89POTENTIALLY REPORTABLE CONDITION RE:SNUBBERFAILURERATEDURINGFUNCTIONAL TESTING..LICENSING EVALUATION DETERMINED THATTHECONDITION DIDNOTMEETTHEREQUIREMENT OFPART21ORPART50CLOSEDRHRLOOP'A'LOWFT-Ell-1NOTBAFOUNDOUTOFTOLDURINGPM81073THISINSTRUMENT ISUSEDDURINGS0-024-007 ANDSO-149-002.SO-149-002 WASCOMPLETED SATON7/15/88.TECHEVALUATION DETERMINED THEREWASNOEFFECTONSE-124"107.'LOSEDRHRSHUTDOWNCOOLINGISOLATION VALVECLOSEDDURINGSYSINITATION PRESSURETRANSIENTS ATPS-831-1NO IBAIShSUSPECTED CAUSE,REFPMR899059d60.ESFINSTTTTTREFMASTERBOOR1-89-007, PLAS323.CLOSEDRHRFOOBVALVEISOLATEDDURINGSHUTDOWNCOOLING,CPUMPTRIPPEOOPSWALKEDDOWNTHESYSWITHNOAPPARENTDAMAGEFOUND.ENS.OP-149-002 REVISEDTOINCORPORATE LESSONSLEARNEDINREVIEWOFFILLANDVENTPROCEDURES.

PMR899059INSTALLED:

ESF.CLOSEDINDICATION FORRHRCHECKVALVEF0508FAILEDDURINGS0-149-014.

EQUALIZING VALVEF1228DIDNOT.OPEN.'8'OOPOFRHRWASDECLAREDINOP.WAS90048REBUILTTHEVALVEAIRCYLINDER.

WhS90050REPLACEDLIMITSWITCHARLlCLOSEDRXLEAKAGEHIGHPRESSUREMONITORFAILEDSI-149-210 CRITERIAWAS96106REPLACEDANBROKENTERMINALSCREWINPSH-E11-1N022A.

CANCELLED RHRPERMISSIVE PS-831-1N0188FAILEDTESTINGPERSI-149-204.INVESTIGATION FOUNDTHATTHESWITCHDIAPHRAMHADFAILEDANDWASREPLACEDPERWA596278.CLOSEDWHILEPLACINGRHRINSHUTDOWNCOOLINGTHE1F007AVALVEOPENED'IN FLOWVALVETOTHESUPPRESSION POOl,,WHICHCAUSEDRXLEVELTT7DROP5INCHES.REFMASTERSOORI-89-007.

INSTllllCLOS/0PRESSIOMPOOLSPRAYSPARGERSWEREPRESSURIZED BREIFLYLOWING"VALVE MAM1PULATIONS FORLLRT.CONDITION

'WASA'f4EARMISSINTHATWORKERWEREPREVIOUSLY INAREAI">"I LO)EDlRHRINBOARDSAMPLEVALVEEll-F079A

~FAILEDCLOSEDh>BLOWNFUSE1TAS'OUND IN1C622,FUSE.821-F19.ESF.ENS.FATIGUE-Of'-')lll g}lPE"ISTHEAPPARENTCAUSE.RHR~HV151F0158 WASFOUNDOUT.OFPOSITIONDURINGLLRT,SE-159-032 OPS.WAS'SIC/EDOfl;IN~ITSDESIGNATED POSITION.

CL)SEb;III"l~0'~PSV151-F097DEVELOPED ALEAKDURINGRHRHYDRO,SE-149-311.

INVESTIGATION FOIIMD'GAGONPSV1151-F0558.

REFNCR89-0224WHICHADDRESSES TH%POTENTIAL FOROVERPRESSURIZATION OFHB8-120.CLOSEDPRESSUREBOUNDRYVALVEWASSTROKEDDURINGRHR'8'YDROTEST,SE-149311.HV151F1048 WASSTROKEDBYOPSFORPOSTMODTESTING.THEDETERMINED CAUSEWASFAILURETOESTABLISH STATUSCONTROLOF PMIS:4910/02/95SUSQUNaSESSOORSUMMARYREPORTFORSYS49-UNIT0/1SORTEDBYUNIT,ISSUEDATE6SOORPMI5~~PAGE8SYSSOORNOCCURDATEDESCRIPTION 4989-1514989-1574989-17049A89-1834989-1824989-188OTHERAFFECTEDSYS:4989-1954989-261491-89-362OTHERAFFECTEDSYS:491-90-021OTHERAFFECTEDSYS:491-90-075OTHERAFFECTEDSYS:4/28/894/29/896/09/895/14/896/16/895/15/895/21/897/21/8912/04/892/02/903/08/90THEAFFECTEDRHRHYDROVALVES.AD-QA-480 WASREVISEDCLOSEDRHRHV161F0158 MOTORTERMINATION ISNOTENVIRONMENTALY QUALIFIED REFNCR89-0293FORCORRECTIVE MEASURES.

THECONDITION WASDETERMINED TONOTBEREPORTABLE.

CLOSEDLEADSHIELDING ONTHERHR508VALVEWASNOTREMOVEDASREQUIREDPRIORTOREFILLING THESYSTEMFORSE-149-202.

EWRME-9095WASISSUEDTODETERMINE THEEFFECTONTHEPIPING.APIPINGSHEILDING DATASHEETHASBEENDEVELOPED BYMAINTP&S.EWRM90529DETERMINED THATNOOVERLOADING OFTHEPIPINGORSUPPORTSOCCURRED.

AD-QA-546 REV2PROVIDESCONTROLOFLEADLEADSHEILDING.

CLOSEDINDICATION ON1C692WASREVERSEDFORXV-15109A 68CONDITION WASNOTEDDURINGSI-199-211 ON4-28-89.WA596728CORRECTED THEWIRING.CLOSED'O'HRPUMPPI,-E11-1R002C WASFOUNDINDICATION AVACUUMWITHTHEPUMPOUTOFSERVICE.WA596789REGAL'EDTHEINSTRUMENT.

THEASFOUNDCONDITION WASINTHECONSERVATIVE DIRECTION, NOTAFFECTING SURVREQUIREMNETS.

CLOSEDRHRHV-151-F0248 DIDNOTCLOSEONLPCIMANUALINITIATION DURINGSE-149-002, DUETOCONTACTSONTHEK688RELAYNOTMAKINGUP.WA'S590741,590470,6593981ISSUEDTOMAKEREPAIRS.CLOSEDINCORRECT DIVISIONDESIGNATED ONERF90754FORWA593938THEPLANNERANDSCHEDULER WERECOUNSELED ANDREVIEWEDTHESOOR.UNITCOORDINATION ANDOUTAGEMANAGEMENT STAFFALSOREVIEWEDTHESOORRE:REVIEWOFERF'S.CLOSEDJUMPERSHORTEDACROSSATERMINALONRELAYK89DURINGSE-159-200RESULTEDINANESFACTUATION WHENPOWERWASLOSTTOTHEK29RELAYCAUSINGTHERHR1F009VALVETOISOLATEANDTHE'A'UMPTOTRIP.BANANAJACKSWEREINSTALLED ONTERMINATIONS USEDINSE-159-200.

CLOSEDCONDUCTIVITY RECORDERCR12351FORRHRHADAMISSINGCOMPONENT.

THECONDITION WASFOUNDDURINGROUTINEMAINT.THECOMPONENTS WEREINSTALLED ANDTHEINSTRUMENT WASTESTEDSAT.AREVIEWBYCHEMREVEALEDTHATNOTECHSPECLIMITSWEREEXCEEDED.

CLSOEDRHRMANUALINJECTION VALVE151-F060A HADDUALINDICATION.

WAISSUEDTOREPAIR.CLOSEDRHRSUCTIONRELIEFVALVESLIFTEDWHILEALIGNINGFORSHUTDOWNCOOLINGPEROP-149-002.

THERESULTING SPILLCONTAMINATED THE'A'HRROOM.ATPISBEINGDEVELOPED TOMONITORSYSPARAMETERS DURINGFILLANDVENTOPERATIONS TOIDWHENTHELIFTOCCURS.REFPMR90-9081AND90-9082WHICHWILLREPLACETYPEOFPSV.REFMASTERSOOR1-90-259.

CLOSED'A'HRSYSTEMFLOWFT-E11-1N015AWASFOUNDOUTOFTOLERANCE DURINGACALCHECKANDWASREGAL'EDWITHINFINALTOLERANCE.

CLOSED PMIS:E4910/02/95SUSQUENNASESSOORSUMMARYREPORTFORSYS49-UNIT0/1SORTEDBYUNIT,ISSUEDATE6SOORNPMISPAGE9SYSSOORN491-90152OTHERAFFECTEDSYS1491-90-259OTHERAFFECTEDSYS:491-90-267OTHERAFFECTEDSYS:491-90-269OTHERAFFECTEDSYS:491-90-279OTHERAFFECTEDSYSQ491-90-311OTHERAFFECTEDSYS:491-90324OTHERAFFECTEDSYS:491-90-341OTHERAFFECTEDSYS:491-90-366OTHERAFFECTEDSYS:OTHERAFFECTEDSYS:54491-90-245OCCURDATE6/07/909/06/909/13/909/16/909/17/909/21/9010/14/9010/21/9010/31/9011/09/90DESCRIPTION UNIT1SHUTDOWNDUETOPOTENTIAL FAILUREOFRHRMOTORCOOLERS.THISSOORWILLDOCUMENTTHEU-1SHUTDOWN, ACTIONITEMSANDSHUTDOWNREPORT.THEDIRECTCAUSEOFTHERHRPUMPMOTORCOOLINGPROBLEMANDLERSUBMITTAL WILLPERPERSUEDVIASOOR2-90-076WHICHIDENTIFIES ACOOLERFAILUREONUNIT2.REFSHUTDOWNREPORT1-9002,PLIS36009.CLOSEDHANGERHBB-1104-H15WASFOUNDTOHAVEALOOSEBOLTDURINGISIOFTHERHRSYSTEM.THEHANGERISONTHESUCTIONPIPINGFORTHE'D'HRPUMP.WAS04927MADECORRECTIONS.

REFNCR90-0194CLOSED'O'HRPUMPSUCTIONRELIEFVALVE,PSV-151-F030C.

LIFTEDANDREMAINEDOPENWHILEPLACINGTHE'A'OOPOFRHRINTOSHUTDOWNCOOLING.UNIT2COMPLETE.

RHRPSV151F030A,B,C6D REPLACEDPERWA5134286513429.CLOSEDSNUBBERSPGBB114H2001REMOVALWASSCOPEDININCORRECT DIVISION.

THESNUBBERWASACTUALLYINDIVIiRATHERTHANDIVIASINDICATED ON.ERFA93209.WA.Y90358 WASCORRECTED.

REMAINING WORKDOCUMENTS WEREREVIEWED.

EACHSNUBBERCLASSIF,ICATION WILLBEREVIEWED.

CLOSEDSNUBBERGBB-107-H1A MOTIONINHIBITED BYANINSULATION BLANKET.REFNCR90-0213WHICHWILLTRACKCORRECTIVE MEASURES.

CLOSEDDIV2SNUBBERREMOVEDFORTESTINGWHENDIVWASREQUIRED=.OPERABLE SEISDATAWASFOUNDTOBEINCORRECT.

THESNUBBERWASREPLACEDWITHANACCEPTABLE SPARE.SNUBBERCLASSIFICATIONS WILLBEREVIEWEDANDVALIDATED.

MAINTCOMPLETED hREVIEWOFSNUBBERDATAINSEISFORACCURACY.

CLOSEDRHRFLOWVERIFICATION FAILEO'50-149-002 ACCEPTANCE CRITERIA.

DETERMINED CAUSEWASTHEINSTRUMENT SENSINGLINEHADNOTBEENBACKFILLED FOLLOWING OUTAGEWORK.WA507687CORRECTED.

OPSTOREVISEPROCEDURES WHICHCONTAINFILLANDVENTSECTIONSTONOTIFY16CTOFILLINSTRUMENT SENSINGLINES.CLOSED'A'HRPUMPSUCTIONRELIEFPSV-151-F030A LIFTED.WA505278DISASSEMBLED THEVALVEANDPERFORMED INSPECTION.

NOCOMPONENT DEFICIENCIES WERENOTED.THEREFORE'HE LIFTINGOFTHEPSVISATTRIBUTED TOOVERPRESSURIZATION OFTHESYSTEMSCLOSED'8'OOPOFRHRKEEPFILLVALVE151-'F0928 WASFOUNDCLOSEDVS:OPEN.INVESTIGATION COULDNOTDETERMINE HOWTHEVALVEBECAMECLOSED.OPSPERSONNEL WILLHOLDDISCUSSIONS ONTHEIMPORTANCE OFTHEEVENTDURINGHOTBOXTRAINING90-66.CLOSEDIPROBLEMSWEREENCOUNTERED INSTROKETESTINGRHRFOSOA/8CHECKVALVE,DUALINDICATION WASOBSERVEDWHENSTROKEWASATTEMPTED.

DETERMINED CAUSEWASAIRTRAPPEDUNDERTHECHECKVALVEDISC-CLOSED3 PMI5:E4910/02/95SUSQUEHANNA SESSOORSUMMARYREPORTFORSYS49UNIT0/1SORTEDBYUNIT,ISSUEDATE6SOORNPMISPAGE10SYSBOORN491-90-372OTHERAFFECTEDSYS:491-91087OTHERAFFECTEDSYS:491-91-090OTHERAFFECTEDSY~49191-091OTHERAFFECTEDSYS:49191148OTHERAFFECTEDSYS:491-91-170OTHERAFFECTEDSYS:491-91-188OCCURDATE11/13/904/16/914/17/914/18/916/17/917/12/918/01/91DESCRIPTION ERFWASNOTISSUEDTOPERFORMWORKON'A'HRHV-151-F003A CAUSEWASTHEASSISTFOREMANNOTKNOWINGTHEVALVEWASA'STROKETIME'ALVE.

OPSWASNOTIFIEDOFTHECONDITION ANDSO149-005WASPERFORMED TOVERIFYTHESTROKETIMEWASACCEPTABLE.

MNTTRAINEDPERSONNEL READ-QA-423 REQUIREMENTS ANDUPDATEDSEISTOREFLECT-FUNCTIONAL TESTINGANDTECHSPECREQ'MNTCLOSEDRHRFS"E111N0218CONTACTSHADHIGHRESISTANCE VALUEWHENTESTEDDURINGSURV.THECONTACTSWEREREPLACEDVIAWAP04886ANDREGAL'ED.

REFBOOR1-91-090CLOSEDRHRFS-E11-1N021A SWITCHCONTACTSHAOHIRESISTANCE DURINGCALiTHESWITCHCONTACTSWEREREPLACEDANDCAL'EDPERPMP04885.REFBOOR1-91-087,CLOSED'A'HRLOOPFAILED ITSQUARTERLY FLOWCRITERIAPERS0-149-002 DUETOPUMPDISCHARGE CHECKVALVENOTCLOSING.THEVALVEWASMANUALLYCLOSEDANDARETESTWASSAT.CLOSEDALARM74RELAYFAILEDFORRHRHV-151-F049 RESULTING INALARM,BURNEDOUTRELAYCOILREPLACED.

CLOSED'O'HRPUMPMOTOROVERCURRENT PROTECTION FOUNDDISCONNECTED.

DETERMINED CAUSEWASPERSONNEL ERRORINNOTPROPERLYTIGHTENING ASTATESLINKIN1A20402.REF.,WA510696.CLOSEDRXPRESSUREDROPPEDBELOWRHRSHUTDOWNCOOLINGPERMISSIVE WITHOUTONELOOPINOPERATION.

THEUNITWASBROUGHTTOASTABLEDEPRESSURIZED CONDITION UNTILRWCUCOULDBERESTORED'EF PLAS502.TSATWASINCORP'ED INTOSO-100/200-011 REV7.THEUSEOFTSATWASAPPROVEDWITHNRCCLOSUREOF387/89-01-02 ININSPECTION REPORT387/91-18.

CLOSED2OTHERAFFECTEDSYS:491912068/15/91OTHERAFFECTEDSYS:~4APlgjl4flIidvvA1tytggrrl).8/1RHR'A'OOPPRESSURIZED GREATERTHANKEEPFILLPRESSUREONSEVERALOCCASIONS.

LEAKAGEINTORHRISLESSTHAN1GPM.MONITORING OFTHEPRESSURIZATION RATEHASBEENEXTABLISHED VIA..-PCAFTO.OP.-149-001 ANDTHELOGGINGINTHEPCOLOGBOOK~PENETRATION

'TESTINGDURING.6RIO DETERMINED NOSYSDEGREDATION EXISTS.--

CLOSED491-91-291OTHERAFFECTEDSYS:491-92-088OTHERAFFECTEDSYS:491-9209911/08/913/07/923/16/92HV-151-F0288 WOULDNOTSTROKEELECTRICALLY FROMCONTROLROOMDETERMINED CAUSEWASLACKOFLUBRICATION ONTHEVALVESTEMWHICHWASCORRECTED.

FURTHERTESTINGPERFORMED PERWAS00598.CLOSEDRHRPSV-151-F030A LIFTEDWHENS/DCOOLINGHV-151-,F008 OPENED.SYSENGCONCLUDED THATLONERGANRELIEFVALVES'ARE UNRELIABLE ANDHASISSUEDRIE90-272TOREPLACETHEMWITHANDERSON-GREENWOOD VALVESPERWA513428AND513429.REFSOOR1-90-259WHICHWILLTRACKVALVEREPLACEMENT.

CLOSEDSPILL,80SQ.FT,OCCURREDIN.RHRROOMDURINGRHRDRAINPROCESS.BEFACR92-016.DE'1ERMINED CAUSEWASLACKOFATTENTION TODETAIL2

PMIS.4910/02/95SUSQUANNASESSOORSUMMARYREPORTFORSYS49-UNIT0/1SORTEDBYUNIT~ISSUEDATE6SOORNPMISSYSSOORNOCCURDATEDESCRIPTION OTHERAFFECTEDSYS:49192-107OTHERAFFECTEDSYS:61.491-92"134OTHERAFFECTEDSYS:491-92-139OTHERAFFECTEDSYS:491-92-148OTHERAFFECTEDSYS:491-92-165OTHERAFFECTEDSYS:491-92-268OTHERAFFECTEDSYS:491-92-302OTHERAFFECTEDSYS:49192311OTHERAFFECTEDSYS:49A1-92-336OTHERAFFECTEDSYS:3/20/924/03/924/03/924/10/924/23/927/21/928/24/929/12/9'210/13/92ANDANONQUESTIONING ATTITUDE.

INVOLVEDOPSPERSONNEL WERECOUNSELED ONTHEEVENT.CLOSEDBKR18216114, 18226062818216053ARENOTEQ~REFNCR92-049.ERF'SANDWAWRITTEN.THEBREAKERSWEREREPLACED.

EQAR-023ANDEQDF-48ISBEINGREVISETOSPECIFYTHEREQUIREDSUPPLIEROFWESTINGHOUSE MOLDEDCASECIRCUITBREAKERS.

CLOSEDRHRF009CLOSEDONSPURIOUSSIGNALWHILEFILLINGSYSTEM.THE.ACTUATING PRESSURESWITCHESWEREISOLATEDANDTHEVALVERECLOSED.

DETERMINED CAUSEWASTHEPROCEDURE STEPSWEREPERFORMED OUTOFSEQUENCENOTSTEPBYSTEPSTRAININGWASCONDUCTED RE:REQOFNDAP-QA-400, PCAF'SISSUEDTOASSOCIATED SE'SADDINGACAUTIONSTATEMENT.

CLOSEDPERMIT1-92-2004 DIDN'7PROVIDEPROTECTION FORWA513999-THEWORKSHOULDHAVEBEENSIGNEDONPERMIT192-2882.DETERMINED CAUSEWASLACKOFATTENTION TODETAIL..ALL E*SPERSONNEL WILLREVIEWTHEEVENT.~MAINTREVIEWEDTHISEVENTWITHE65PERSONNEL.

CLOSEDRHRSHUTDOWNCOOLINGSUCTIONRELEIFVLVPSV-151-F029 LIFTEDWHENKEEPFILLWASOPENEDTOTHERHRSYSTEMFORFILLING.WA523703INVESTIGATED ANDDETERMINED THEPSVASFOUNDLIFTPRESSURETOBELOWERTHANREQUIREDSETPOINT.

CLOSEDRXCOOLANTSAMPLESWERENOTREPRESENTATIVE OFACTUALCOOLANTASREQUIREDBYTECHSPEC'5DURINGTHEPERIODOF4/20THRU4/23.THESAMPLEWASTAKENFROMSTAGNENTWATERINTHEHEATEXCHANGER DUETOBYPASSBEINGOPEN.CHEMREVISEOSC-176/276-101 AND106TOENSURERHRHXINSERVICEPRIORTOOBTAINING SAMPLE.CLOSEDRHRPUMPPI-E11-1R002C FOUNDOUT'FTOLERANCE.

THEINDICATOR WASCALIBRATED ANDFINALDATAWASWITHINFINALTOLERANCE.

CLOSEDUSERCONTROLLED PROCEDURE ISSUEDWITHANON-EFFECTIVE PCAF,50-149-005 WITHPCAF1-92-0237 WHICHHADBEENPREVIOUSLY DELETEDBYPCAF1-92-0254.

DETERMINED CAUSEWASPERSONNEL ERRORBYTHECLERKISSUINGTHEPROCEDURE.

HANDWRITTENNOTEWASUSEDINSTEADOFACOMPUTER.

GENERATED TRANSMITTAL.

THEPROCEDURE MASTERFILEHASBEENINCLUDEDINTOSPMSASADISTRIBUTION LOCATION.

INVOLVEDPERSONNEL WEREINSTRUCTEO ONPROPERPROCESS.CLOSEDPSH-Et1-1N018FOUNDISOLATEDDURINGPERFORMANCE OFSI-149-209.

INVESTIGATION BYASTATUSCONTROLTEAMCOULDNOTDETERMINE ACAUSE.CLOSEDRHRSYSLEAKAGEPSH-Ett-1N0228 HOUSINGSEALFOUNDDAMAGEDDURINGSI"149-210.

CALCHECKWASSAT.WA527483ISSUEDTOREPLACETHESWITCH,CLOSED

PMIS:EVR49 10/02/95SUSQUEHANNA SESSOORSUMMARYREPORTFORSYS49-UNIT0/1SORTEDBYUNIT~ISSUEDATE5SOORNPMISPAGE12SYSSOORNOCCURDATEDESCRIPTION 4993-338OTHERAFFECTEDSYS:514993-341OTHERAFFECTEDSYS:4993-377OTHERAFFECTEDSYS:4994-034OTHERAFFECTEDSYQ,:496,94035OTHERAFFECTEDSYS:4994-059OTHERAFFECTEDSYS:4994-180OTHERAFFECTEDSYS:804994-580OTHERAFFECTEDSYS:10/17/9310/25/9311/13/931/11/941/11/941/18/943/16/9411/29/94CHAINHOISTWASFOUNDHANGINGFROMACONDUITUNISTRUTSUPPORTINTHE705'QUIPMENT SPACE.INVESTIGATION DETERMINED THEHOISTWASPLACETHEREBYCONTRACTOR PERSONNEL.

THECONTRACTOR SUPERVISOR WASGIVENA=-DETAILEDREVIEWOFSTATIONRIGGINGPRACTICES.

AVISUALINSPECTION OFTHESUPPORTBYISIPERSONNEL DIDNOTREVEALANYDAMAGE.EWRM30719DOCUMENTS THEEVALUATION.

CLOSEDRHRSDCSAMPLEVLVFOBOAAUTOCLOSEDDURINGMT-159-004.

COMMUNICATIONS BETWEENTHETESTDIRECTORANDTHEUNITSUPVFAILEDTOINITIATEACTIONTOCLOSETHEVALVEPRIORTOTESTCOMMENCEMENT.

DETERMINED CAUSEWASLESSTHANADEQUATECOMMUNICATION.

MT-159-004 WASREVISED.CLOSEDRHRDISCHARGE CHECKVALVE,1F031A~DIDNOTSEATWHICHPREVENTED THE'A'OOPOFRHRFROMMAINTAINING ADEQUATEKEEP-FILL PRESSURE.

INVESTIGATION FOUNDTHATTHEVALVEDISKHANANINTERFERENCE WITHA'CASTINGBUMP'NTHEVALVEBODY.DCP93-3093A'68AND93-3092A58AREPLANNED.REFEWRM30762ANDDCN93-1658RE:ADDITIONOFASPACERONTHEDISKSHAFT.CLOSEDRHRSDCOOLINGSUCTIONLINEINOPDUETOF008VLVPACKINGLEAK.THEPACKINGONHV-151-F008 WASRETORQUEO.

.CLOSEDRHRHV-151-F0248 WOULDNOTFULLYCLOSEDURINGTP"149-054.THEVALVEWASREBUILTANDTESTEDPRIORTOSTARTUP-SEVEREWEAROFTHEANT.I-ROTATION GUIDERIBISTHEPROBABLECAUSE'AINTTECHNOLOGY WILLPROVIDERECOMMENDATIONS FOLLOWING AREVIEWREFMEMOVLV-622.RE:

LOADSENSITIVE BEHAVIOROFMOV'S.CI.OSEDHV151F017AMODIFIEDVIADCP93-9068AACTUATORSWITCHESNOTSETUPAFTERTHEMODWASPERFORMED.

WHENVOTESTESTEDTHEVALVEMOTOREDONTOTHEBACKSEAT.

DETERMINED CAUSEWASOMMISIONOFAPROCEDURE STEPBYTHEWORKCREW.THEFOREMANANDWORKCREWWERECOUNSELED ONTHEEVENT.NONROUTINETRAININGISPLANNED.MAINT/EAS ELECTRICIANS WHOAREMOVQUALIFIEDREVIEWED THEEVENT.CLOSED'8'OOPOFLPCIINOP,PIS-821-1N021D OUTOFTOLERANCE.

CONDITION FOUNDDURINGSI-180-301.

THESWITCHWASCALIBRATED TOWITHINTOLERANCE PERTHESURVANDTHELCOWASCLEARED.CLOSED'8'HRPPSUCTIONVLVTHERMALOVERLOADJUMPERLOOSE.18226013.

THEF0048VALVEWASCLOSED'HE JUMPERCORRECTED'ND THEVALVEWASRE-OPENED.

CLOSEDTOTAL:119

PMI5:4910/02/95SUSQUANNASESSOORSUMMARYREPORTFORSYS49-UNIT2SORTEOBYUNIT,ISSUEDATE8SOOR)1PMISPAGE13SYSSOORNOCCURDATEDESCRIPTION 492-84-039OTHERAFFECTEDSYS:54492-84040492-84-075492-84-09749284-0983/28/843/28/845/04/846/21/845/21/84ESWVLVNOTFULLYOPEN;CAUSINGHIBEARINGTEMPONRHRPUMPA.THROTTLEVLVTO'A'OTORCOOLERWASININTERMEDIATE

POSITION, OP-54001-5INDICATED VLVLOCKEDOPEN.GULFOILANALYSISSTATESLOWERBEARINGOILISSAT~UPPERBEARINGOILHASHIGHVISCOSITY.

CLOSEDRHR'A6O'ECLARED INOP.SURV.DETERMINATED TOBEINCORRECT.

SRITESTRESULTSCONTRIDICTED THESURVEILLENCE DATA.ALSO,AIRWASDISCOVERED INBOTHINSTRUMENT LOOPS.WA-V46538 RECALIBRATED THEFLOWINDICATORS FORBOTHLOOPS.CLOSEDRHRO.O.S.FORMORETHAN2HOURS'OTH LOOPS.'8'ASREMOVEDFORAPIPINGVIBRATION TEST.IBCWASPERFORMING ASURVEILLANCE ONF0086F009ANDCHEh1WASPERFORMING ALOOP'A'LUSH.CLOSEDPRICONTISO6CKVALVESDUALINDICATION WHENCLOSUREATTEMPTED.

SV251228(TESTABLE CHECKVALVEF1228)SV251508(TESTABLE CHECKVALVEF0508ACTUATOR)

REF1SOOR'S284098>>101'078114-++CLOSED*+

'8'PCIINJECTION VLVCLOSEDTOCOMPLYWITHT.S.3.5.1.83.492-84-10149284107492-84-114492-84-216OTHERAFFECTEOQYS:

83492-84-251492-84-283492-84-3135/21/845/24/845/28/848/09/849/19/8410/16/8411/03/84REF1SOOR2-84-097<iCLOSEDi+

2F0158INJECTION VALVELEAKING,DUALINDICATION DISPLAYED.

THEVALVEWASDISASSEMBLED, REPAIREOANDRETURNEDTOSERVICE.REF:BOOR2-84-097CLOSEDLEAKAGEh(EASUREMENT OFRHRLOOP'8'SOVLVSEXCEEDEDLIMITS.RHRVALVEHV-2F0158 WASDISASSEMBLED ANDREBUILT.LLRTANDAHYDROWERESUCCESSFULLY COMPLETE.

REF:SOOR284097.CLOSEDRXSHUTDOWNTOCOMPLYWITH'.S.FORLPCILOOP'8'NOP.THEN1TBVHUNGOPEN.WHENTHEVALVEWASDISASSEMBLED ACHIPPINGHAMMERWASFOUNDINTHEVALVE.REF1SOOR'S2-84--097 8107.NQAREVIEWREQ.DELETEDPEROPS-5R.B.~CLOSEDSURVSI-249-203 WASCOMPLETED ONEDAYPASTVIOLATION DATE.PERSONNEL ERRORWASCAUSE~16CHASCHANGEDROUTINGOFCOMPLETED SURVEILLANCES TOPREVENTRECURRENCE.

CLOSEDRHR"D"PUMPFAILEDTOSTARTONMANUALACTUATION, DUETO52LSCONTACTSN~FUHCTIONING PROPERLY.

WAV41160REPLACEDRELAYANDRESTOREDSYSTEM.CLOSED'A'HRLOOPDECLAREDINOPWHENISICRITERIAFAILEO.INSTRUMENTS HAVEGREATERCALTOLERANCE

~THENISICRITERIASURV.PROCEDURE AD-QA-423 WASREVISEDTOPREVENTRECURRENCE.

CLOSEDSNUBBERDCA-210-H11 ON'8'OOPOFRHRISSUSPECT,PERRESULTSOFST17.7PERTER90.WAV43859REPLACEDSNUBBER.NCR85-0130VERIFIEDPROPEROPERATION PERWAV63915DURINGFIRSTREFUELING OUTAGE.CLOSED PMI5:4910/02/95SUSQUNASESSOORSUMMARYREPORTFORSYS49-UNIT2SORTEDBYUNIT~ISSUEDATEdSOORNPMISPAGE14SYSBOOR'NOCCURDATEDESCRIPTION 49284-334492-85-032OTHERAFFECTEDSYS:12/10/841/29/85IMPROPERFUSEPOSITIONLABELINGINTB0631PANEL.WA-V41612 ISSUEDFORFUSELABELING.

AD-QA-324'/BE ISSUEDT/PROVIDE GUIDANCEFORPLTLABELINGPROG.BOOR2-84-311ISSIMILAR.CLOSED,RHRSHUTDOWNCOOLINGSUCTIONISOLATION VLV2F008DIDNOTISOLATE(OUTBOARD).

INBOARDVALVE2F009ISOLATEDAT74PSIGRXPRESSURE.

PS-831-N018A (BARTON288A)WASRE"CAL'DPERWA-V50092 dV56224~RFM'SWRITTEN1/30/86.THEISOLATION WASANESFACTUATION.

PMR86-7026ALSOPROVIDESCORRECTIVE MEASURESFORBOOR1-84-483.

CLOSED49.2-85-0613/13/85RHRROOMCOOLERVLV211-127AWASPERMITTAGGEDOPENVICECLOSEDTHISVLVHASLEFTHANDTHREADSWHICHCONTRIBUTED

.TOTHEERRORSEWRPE-1622WRITTENTOIDALLVLVS.OFTHISTYPE.OPSLABELEDTHOSEVALVESWHICHWEREREADILYKNOWNTOBEREVERSEACTING.TECHCOMPLETED AREVIEWOFPLANTVALVESTOIDANYREMAINING ONESREQUIRING LABELS.PMR87-9048ISSUEDBYNPE1/26/88.LABELINGCOMPLETED PERLRF87-177-239d88-277-017.

WAV83845RELOCATED HANDWHEEL 180DEG./CLOSED492-85-121492-85-123492-85;28749H2-86-023492-86-079492-86-092492-86-113492-86-12049.286-1294/27/864/27/8512/20/851/31/866/18/866/18/868/06/868/17/868/24/86WATERHAMMEROCCURRED'LACING RHR'8'OOPINSHUTDOWNCOOLINGAPPARENTCAUSEWASPIPINGBEINGFILLEDWHENBYPASSVLV.WASOPENED.REF.MASTERSOOR2-85-123.

CLOSED.SHUTDOWNCOOLINGVLVSISOLATEDAFTERRHR'O'UMPWASSTARTED.APPARENTCAUSEWASSTEAMPOC'KETSINPIPINGWHICHCOLLAPSED ANDCAUSESEXCESSIVE FLOWSIGNAL.MASTERBOORFOR2-85121.EVENTHASNOTRE-OCCURRED ASOF10/6/86.REFEWRIREIR101171THEISOLATION CONSTITUTED ANESFACTUATION.

CLOSEDRHR,SHUTDOWNCOOLINGPRESSUREPERMISSIVES FOUNDOUTOFTOL.DURINGSI-249-304.

~PIS-831-2N018A

~PS-831-2ND(88, DUETOSETPOINTDRIFTANDWERERE-CAL'ED PERSAA54425.CLOSEDRHR/DRYWELL SPRAYFT-251208 WASFOUNDOUTOFTOL.DURINGPMWAP60122.ANDWASRECAL'ED'ER IC-DC-100, REV.5.OPSREVIEWHAS,DETERMINED THATSURV.RESULTSWERENOTAFFECTEDSINCETHISINSTRUMENT ISNOTUSEDINANY"SO'5".CLOSEDCONSEQUENCES OFERF'SINOP'ED8CS,8LPCIdSGTS.REF.ERFA51508,A53440,A53968dA54445.THEREQUIREDECCSSYSTEMEQUIPMENT WASRESTOREDTOOPERABLESTATUSdLCO'SWERECLEARED.PNSS/OPS/IdC ADDRESSED.

WAV66623ERFPREPFAILEDTONOTERHRISOLATION SWITCH.CLOSEDRHRINITIATION PERMISSIVE PS-831-2N0188 FOUNDOUTOFTOL.DURINGSI-249"304, WHICHWASTHENRE-CAL'ED

~CALIBRATION DRIFTWASTHEDETERMINED CAUSE.CLOSED'8'OOPOFRHRINOPDUETOFAILUREOFISITESTING.VENDORWELDNGBB-204-4-2-C ISSUSPECT.NCR86-0424DETERMINED CAUSETOBEMANUFACTURING DISCONTINUITIES, WAV64274CORRECTED NRPDSCOMPLETE.

CLOSEDSPILLOFAPPROX30GAL.OFWATERDURINGLLRTOFRHRTHRUDISASSEMBLED HV-251-F017A.

NOPERSONNEL WERECONTAMINATED ORINJURED.SUPT.MEMOPROVIDESGUIDELINES FORLLRTDURINGTHEREMAINDER OFTHEU2FRO.(PLIS23922)CLOSEDCONTAMINATED

'OILDRIPPEDFROMRHRVLV558WHILEBEINGMOVED PMIS.4910/02/95SUSQUNNASESSOORSUMMARYREPORTFORSYS49-UNIT.2SORTEDBYUNIT,ISSUEDATE&SOORNPMI5PAGE15SYSBOORNOCCURDATEI'ESCRIPTION 492-86-132492-86-136492-86-139492-86-147492-86-153492-86"169OTHERAFFECTEDSYS:34492-86-171492-86-239492-86-181492-86-2078/25/869/05/869/07/869/18/869/25/8610/08/8610/12/8610/13/8610/24/8611/20/86FROMRXBLDG683'OTHEDECONSHOP.13INDIVIDUAL PERSONNEL CONTAMINATION REPORTSWEREWRITTENASARESULT.ATRANSFERCARTSUITEDFORVAI,VESHASBEENFABRICATEO.

CLOSEDSPILLOFAPPROX100GALCONTAMINATED WATERDURINGWORKONRHRPUMPDISCHARGE FLOWORIFICEREPLACEMENT.

ONEPERSONWASCONTAMINATED ANDWASDECONNED~ASWASTHEWORKAREA.ORIGINOFTHEWATERCOULDNOTBEDETERMINED.

CLOSEDRADIOGRAPHY OFRHR178VALVECAUSEDVENDORTORECEIVE170MRWHOLEBODYEXPOSURE.

CAUSEDBYAFAULTYCAMERAMECHANISM COMBINEDWITHANON-FUNCTIONING SURVEYMETER,(OWNEDBYU.S.TESTiNG).

HP-HI-048 ISSUEDTOASSISTINPREVENTION OFRECURRENCE CLOSEDRHR'D'UMPSEALWATERCOOLERSPOOLPIECEMISSINGAREVIEWOFWORKDOCUMENTS COULDNOTDETERMINE HOWSPOOLWASREMOVED.SYSTEMWASRESTORED.

MAINTSUPERVISORS REVIEWEDEVENT,REFPLIS24951.CLOSEDRHRLPCIPUMPPRESSUREHI~PS-E11-2N020A FOUNDOUTOFTOLDURINGSI-249-303, CAUSEDBYSETPOINT, DRIFT,ANDWERERE-CAL'ED REFSAA63204CLOSEDHPCISTEAMSUPPLYPIPINGBECAMEPRESSURIZED DURINGRHRTESTINGRHRVALVES2F051A652AWEREVERIFIEOINTHECLOSEDPOSITIONBUTARESUSPECTED OFLEAKING.REF:PMR867033634CLOSEDSWITCHGEARROOMCOOLINGINOPCAUSINGALLECCSTOBEINOP'A8'XUNITOUTOFSERVICEFAN2V2228WOULDNOTSTART.ELECMAINTINVESTIGATED PERWAV61096~-WHENDXUNITWASRESETACONTROLROOMPANEL,THE'8'ANSTARTED.SI-251-401 ANDSI280403REVISEDTOALERTSHIFTSUPERVISION OFOXAUTOSTARTLOGIC.CLOSEDRHR2F008VALVECLOSEDWHENSWAPPINGSHUTDOWNCOOLINGPUMPS.(MASTERSOORFOR1-84-138)

APARTIALSYSDRAINDOWNOCCURREDRESULTING INAWATERHAMMERUPONRESTART.THEISOLATION CONSTITUTED ANESFACTUATION.

OPSPERSONNEL REVIEWEDTHEEVENT.CLOSEDRHRHV-251-F015A REWORKEDW/0STROKETIMETESTINGPERFORMED.

WAV645496WAV63141.AD-QA-302 REVISEDBYOPS.TOUSESURVEILLANCE PROCEDURES TOINSUREAPPLICABLE VALVESARETESTEDFOLLOWING MAINTENANCE.

OPSHOTBOXTRAINING87-07REVIEWEDTHEEVENT.PCAF1-87-0584 ISSUEDTOAD-QA-502 TOPROVIDECONTROLSFORREPACKEOVALVES.CLOSEDRHRPIPINGHANGERDAMAGEDFROMWATERHAMMER WHICHOCCURREDWHILEATTEMPTING TOSEATACHECKVALVE.OPSTOREVIEWEVENTANDCONTACTTECHPRIORTOATTEMPTING ASIMILARACTIONOFSEATINGVALVES.PCAF'SINITIATED FORGO-100/200-002.

REFNSAGREPORT187.OPERATORTRAININGONWATERHAMMER, SC038HASBEENDEVELOPED.

CLOSED'8'HRPMPFAILEDTOiSTARTWHILEALIGNING'8'OOPRHRINSUPPPOOLCOOLINGNIUVI=FDRUPCOMINGRCICRUN.4KVBKRWASNOTRACKEDCOMPLETELY INTOPLACE.WAV61285INVESTIGATED.

THEBKRWASRACKEDOUTTHENBACKIN.'8'HRPUMPTHENSTARTEDPROPERLY.

SAFTYRELATED4KVBKRLOADSTOBETESTEDFOLLOWING BKRRACKIN"CLOSED PMIS:E4910/02/95SUSQUENNASESSOORSUMMARYREPORTFORSYS49-UNIT2SORTEDBYUNIT~ISSUEDATEdSOORNPMISSYSSOORN492-87-03649287045492-87-092492-87-107492-87161OCCURDATE3/08/87DESCRIPTION 12/17/87RHRFLOWFi-25105FAILEDTOINDICATEDURING50-200-001 CAUSEDBYALOOSEWIREONTERMINAL14OFSRU03,WAV76326CORRECTED.

CLOSED3/23/87'8'HRPUMPFAILEDTOSTARTDURING50-249"002, (2P20281DUETOOPENBREAKERCONTACTSCAUSEDBYSTICKYOILRESIDUEONTHEOPERATING LINKAGE.WAV70163CORRECTED.

MT-GE-006 REVISEDTOELIMINATE LUBRICANTS.

CLOSED~q6/21/87RHRF024AWOULtINOTELECTRICALLY, OPENFULLYDURINGSUPPRESSION POOLCOOLINGLINEUPDUETOFAILUREOFTHEMOTORPINIONGEAR.WAV70299REPAIRED.

CLOSED>a~i."~<<~p~qeyeg~~~~~;~~ivi..~-~"~a"-.'".':,~

rV.:<~..p.=<<qp,7/13/87RHR'8'ULLFLOWTESTVALVE2F0248INOPERATIVE CAUSEDBYALOOSESTEMANTI-ROTATION DEVICE.WA V73632CORRECTED.

AREVIEWWASMADEOFNCR'S82-911d82-1071WHICHHADID'DADDITIONAL VALVESTOBEINSPECTED FORTHISCONDITION dWA'SHAVEBEENISSUED.NPEISSUEDEWRM79457WHICHLISTSVALVESSUBJECTTOTHISPROBLEM.PM'SHAVEBEENGENERATED FORALLAPPLICABLE VALVESCLOSEDRHRHV2F0288TRIPPEDOVERLOADS ONTWO.ATTEMPTS TOOPENTOPERFORM50-249-002.

WAV70827INVESTIGATED ANDFOUNDTHEVALVEMOTORTOBEINOPERABLE ANDREPLACEDIT,.CLOSED-j~g4'~=~492"88-036492-88-069492-88-079492-88-086OTHERAFFECTEDSYS:492-88-096492-88-097492~88-098~tI'/05/883/19/883/29/884/08/884/19/884/19/884/19/88AUTOCLOSUREOFTHERHRSHUTDOWNCOOLINGVALVEF009OCCURREDDURINGOP-249-002.

IdcINVESTIGATION FOUNDPDIS-E11-2N019A INOPANDRE-CAL'ED PERWAA80992.CLOSEDRHRMINFLOWVALVEF007ACONTROLCIRCUITDIDN'TOPERATEPROPERLYINTHATITOPENEDIMMEDIATELY, RATHERTHANAFTERATIMEDELAY.DETERMINED CAUSEWASFAULTYOPERATION OFRELAYE11-K84AWHICHWASREPLACEDPERWAV80280.THISISMASTERBOORFOR2-88-144WAV80363INSPECTED RELAYE11-K84AWITHNODRIFTNOTED.CLOSEDFUSEF168WASFOUNDINSTALLED IN20612WITHAREDTAGHANGINGONTHEFUSEHOLDER.FUSEWASINSTALLED ANDVERFIEDON3-21-88TOCLOSEPERMIT2-88-720WHILEANOTHERPERMIT,2-88738WASSTILLINEFFECTWITHIT'SREDTAGHANGINGONTHEFUSEHOLDER.THEEVENTWASREVIEWEDDURINGOPSSOA88-05.CLOSEDWORKERSNOTICEDTHATAJUMPERWASDISCONNECTED INPANEL20617.INVESTIGATE FOUNDTHATTHEJUMPERWASINSTALLED FORUSEDURINGALLRTTEST.ITCOULDNOTBEDETERMINED IFTHEJUMPERHADBEEN'BUMPED'FF BYTHEWORKERORIFITWASOFFPRIORTOTHEIRWORK.ENG..SUPPORTUSE'S"WILLBEREVISEDTOUTILIZEBANANAJACKS.TECHREVIEWEDALLPENSSURV'SANDISSUEDWA'STOINSTALLBANANAJACKS.CLOSED'A'HRPUMPDIDNOTSTARTASEXPECTEDDURINGSE-249-001.

DETERMINED CAUSEWASIMPROPERLIMITSWITCHSET-UPINHV261F004A.WAV80366CORRECTED.

CLOSED'A'HRPUMPUNEXPECTED STARTDURINGSE-249-001.

THETESTWASSTOPPEDTOADJUSTVALVELIMITSWITCHFORHV-251F004A.

THISCAUSEDINITIATION LOGICTOSEALINANDWASNOTRESETPRIORTORESTARTING THETEST.~C/ŽCLOSEDRHR2F024AVALVEPINION'ECAME DISCONNECTEDFROQ THEMOTORSHAFTANDMECHANICAL DAMAGERESULTED.

CONDITION WASFOUNDDURINGPER-FORMANCEOFSE-249-001.

WAV83644ANDV80409REPAIRED.

PMIS:ER4910/02/95SUSQUEANNASESBOORSUMMARYREPORTFORSYS49-UNIT2SORTEDBYUNIT~ISSUEDATE&SOORPMISPAGE17SYSSOORNOCCURDATEDESCRIPTION 49288099492-88-102OTHERAFFECTEDSYS1492-88-107492-88-109492-88-112492-88-125492-88-144492-88-156~492-88-201492-88-216492-89-023492-89-0314/20/884/22/884/22/884/25/884/27/885/16/886/11/886/21/888/12/889/07/882/28/893/04/89CLOSED'A'HRPUMPINADVERTENT STARTDURINGSE-251-001.

APPARENTCAUSEWASDURINGJUMPERINSTALLATION, WHENTERMINATION CCC3-7WASCONTACTED, ENERGIZING RELAYSE118ANDK2018.AGUIDELINE HASBEENESTABLISHED FORJUMPERINSTALLATION DURINGTP'SANDSE'S.CLOSEDRHRSERVICEWATER'8'OOPRADMONITORLOSTPOWER,CALIBRATION VALUESWERELOST.CONDITION WASFOUNDATTHESTART-OFSC-216-104.

MONITORISPOWEREDBY2Y219CIRCUIT28,ANYINTERUPTION WILLCAUSETHESETPOINTVALUESTOBELOST.RHRWASNOTINSERVICETHEREFORE MONITORSWERENOTREQUIRED.

POWERWASRESTOREDANDSETPOINTS WEREENTERED.CLOSEDINCORRECT WIRETERMINATION ONRHRLOGICRELAYK958,SUSPECTPMR87-9092AWHICHHADBEENWORKEDDURINGTHE2RFIO.CWOC80418CORRECTED THEWIRINGERROR.INVOLVEDPERSONNEL REVIEWEDTHEEVENT.CLOSEDRHR'A'ONDUCTIVITY RECORDERWASDISABLEDDUETOBREAKEROUTAGEFORCLEANING'X260.

OPSREVIEWEDTHEEVENTWITHPERSONNEL DURINGAGENDA88-03.CLOSEDRHRRELAYE11A-K11A CONTACTS364DIDNOTCLOSEDURINGSURVSE-249-002, (RHRDIV2LSFT).INVESTIGATION FOUNDTHERELAYWASENERGIZED, HOWEVERCONTACTS384WOULDNOTMAKE-UP.WAV80393CLEANED=ANDINSPECTED CONTACTS.

CLOSEDREATORPRESSUREPS-821-2N018 FOUNDOUTOFTOLERANCE DURINGSURVSI-249-304 ANDWASRECALIBRATED PERTHESURVEILLANCE.

THECONDITION WASCAUSEDBYSETPOINTDRIFT.PMR867027WILLREPLACETHESWITCHES'LOSED RHRMINFLOWF007AOPENEDIMMEDIATELY DURINGSHUTDOWNCOOLINGINITIATION.

WAV80280REPLACEDSUSPECTRELAYE11-K84A.

WAV80363WILLTEST.WAV80558INSTALLED

.MONITORING EQUIPMENT PERTECHENGREF:MASTERSOOR2-88-069CLOSED2DRHRPUMPWASRUN4HOURSWITHOUTESWCOOLINGWATERALIGNED.THE'8'SWPUMPWASSTARTEDRATHERTHANTHE'A'R'O'SREQUIREDBYOP-249-005.

RHRUPPERBEARINGSREACHEDTEMPSINEXCESSOF200F.OPSREVIEWEDTHEEVENTDURINGSOA8804.CLOSEDRHRPIS-831-2N018A SW111FOUNDOUTOFTOLERANCE DURINGSURVSI-249-304 ANDWASRECALIBRATED PERTHESURVEILLANCE.

CLOSEDSAFETYEVALUATION FORPMR87-9092AMAYNOTBEADEQUATEREVIEWREFNCR88-0610WHICHCONCLUDED THATUNREVIEWED SAFETYQUESTIONS DONOTEXIST.REFPLI57015AND54445.CLOSEDRHRMINFLOWVALVEF007AOPENEDDURINGSHUTDOWNCOOLINGINITIAT-ION.REFSOOR2-89-037FORCORRECTIVE ACTIONS.CLOSEDTERMINATIONS E203062A-.8 8WERENOTPROPERLYLANDEDIN28216022THECONDITION WASFOUNDDURINGINVESTIGATION FORWAV90105.THETERMINATIONS WEREINCORRECT ASARESULTOFPMR87-30258.

THEMODWASCANCELLED ANDASARESULTSCHEMECHECKSWERENOTISSUED.WAV90105CORRECTED THECONDITION.

PMIS.4910/02/95SUSQNASESBOORSUMMARYREPORTFORSYS49-UNIT2SORTEDBYUNIT,ISSUEDATEdSOORNPMISPAGE18SYSSOORNOCCURDATEDESCRIPTION OTHERAFFECTEDSYS:49289037492-89-128OTHERAFFECTEDSYS:492-89-139492-89-165OTHERAFFECTEDSYS:49289171OTHERAFFECTEDSYS:83G76D49289-173OTHERAFFECTEDSYS49.2"89-177OTHERAFFECTEDSYS:.492-89-186OTHERAFFECTEDSYS:51492-89-197OTHERAFFECTEDSYS:492-89-2073/15/899/18/899/22/8910/16/8910/21/8910/23/8910/25/8910/31/8911/06/8911/18/89CLOSEDF007AMINFLOWVALVEOPENEDDURINGSHUTDOWNCOOLINGALIGNMENT.

APPARENTCAUSEISTS-E11-1N021A OPENINGONINCREASING FLOW~PMR89-9069d60WEREINITIATED.

REFMASTERBOOR1-89-007CLOSEDPSV251F030D FAILEOTOLIFTATDESIREDPRESSUREVALVEWASDISASSEMBLED TODETERMINE CAUSEOFFAILURE,VLVSTEMFOUNDDAMAGED,POSSIBLYDUETOIMPROPERGAGGINGOFPSV.DURINGWAF91676PSV251F029WASFOUNDTOHAVEABENTSTEM.REFMASTERSOOR2-89-197CLOSEDRELIEFVALVEPSV251068 GAGGEDINCORRECTLY DURINGWAV84271REFLLRT101,SE249-311.INADEQUATE WORKCONTROLANDPROCEDURES WASTHEDETERMINED CAUSE.SE-250-310 AND311WEREREVISEDTOPROVIDEPROPERDIRECTION.

REFMASTERBOOR2-89-197CLOSEDSMALLCONTAMINATED SPILLDURINGRHRLOGICFUNCTIONAL SE-249-001 DUETOVENT261077BEINGOPENFORLLRTINVESTIGATION OFLEAKAGEPASTTHE2F016A.DETERMINED CAUSEWASALACKOFCOMMUNICATION BETWEENALLPERSONNEL INVOLVEDINTHETEST.OPSREVIEWEDTHEEVENTDURINGSOA90-01.CLOSEDRHRTSH-E11"2N6008 WASFOUNDOUTOFTOLERANCE DURINGSURVSI-249-306 AND-WASRECAL'EDPER-THESURVEILLANCE.

CLOSED'8'ND'D'HRSUCTIONRELIEFVALVESWEREFOUNDLIFTEDFOLLOWING INITIATION OFSHUTDOWNCOOLING.DETERMINED CAUSEWASTHELIFTINGDISCCONTACTING THEMANUALACTUALTION SHAFT.REFMASTERSOOR2-89-197CLOSED'O'HRPUMPWOULDNOTRESTARTDURINGPERFORMANCE OFSE-224-002 WHENTHE4KVBREAKERWASRACKEDOUTANDTHENBACKIN,THEPUMP-STARTED.

CLOSED7VALVESHADPACKINGTIGHTENED W/0ERF'SSUBMITTED PRIORTOWORK=THISRESULTEDINDECLARING 3OUTOF7AVAILABLE LOWPRESSUREECCSSYSTEMSINOPDUETOSTROKETIMESBEINGUNKNOWN-THECAUSEWASAFAILURETOFOLLOWTHEACTIVITYWORKPLAN.

MAINTREVIEWEDTHEEVENTDURINGVALVETEAMTRAINING.

PENSREVISEDSE-100/200-002 TOENSUREMNTCOMPLIESWITHAD-QA-306 PRIORTOWORKINGANYCOMPONENTS.

PORCACTIONITEMINITATED, BOORCLOSED.'8'HRPUMPSUCTIONRELIEFVALVELIFTEDDURINGSYSALIGNMENT.

REPEATOCCURRENCE, REFSOOR2-.89-173.THELIFTINGDISCANDCASTLENUTWEREFOUNDNOTPROPERLYJAMMEDALLOWINGTHEDISCTOVIBRATEDOWNTHESHAFTTHREADS.MNTADJUSTEDPSVPROGRAMPROCED.CLOSEDCORESPRAYANDRHRTESTABLECHECKVALVESFAILEDTESTREQUIREMENT FORLEAKAGE.THETESTWASREPEATEDANDSATISFACTORY RESULTSWEREOBTAINED.

GO-100(200)-002 CHANGED>REF.PCAF'S190-0450d2"90-0193 PMIS:4910/02/95SUSQUNASESBOORSUMMARYREPORTFORSYS49-UNIT2SORTEDBYUNIT,ISSUEDATE&SOORllPMI.SSYSBOORllOCCURDATEDESCRIPTION OTHERAFFECTEDSYS:51492-90.-019 OTHERAFFECTEDSYS:492-90-021OTHERAFFECTEDSYS:492-90-076OTHERAFFECTEDSYS:54492-90-165OTHERAFFECTEDSYS:49*2-91-009.OTHERAFFECTEDSYS:492-91-024OTHERAFFECTEDSYS:49291049OTHERAFFECTEDSYS:492-91-062OTHERAFFECTEDSYS:492-91-091OTHERAFFECTEDSYS:492-91-112OTHERAFFECTEDSYS:2/06/902/11/908/29/9012/18/901/08/912/07/913/10/913/10/914/12/91'/23/91CLOSEDRHRCROSSTIERELIEFVALVEPSV-25193 LIFTEDANDWOULDNOTRESEATDURINGATTEMPTSTOFLUSHRHRPIPING.THEVALVEWASREWORKEDPERWAV03106.REFMASTERBOOR2-89-197.CLOSEDRHRTESTABLECHECKVALVEHV-251-F0508 INDICATION NOTFULLOPENDURING50-249-014.

DETERMINED CAUSEWASWORNSEALSONTHEAIROPERATORUNEEPACSEALSANDTHEUPPERSEALS.WAV03223REPLACEDTHESEALS.CLOSEDESWLEAKFOUNDATTHE'O'HRPUMPMOTOROILCOOLER.CAUSEDBYHOLEINCOPPERTUBINGATTRIBUTED TOUNDER-DEPOSIT LOCALPITTING,NOTBYASFIRSTIMPLICATED.

MICROBIOLOGICALLY INFLUENCED CORROSION WHICHSHUTDOWNUNITDUE.TOGENERICIMPLICATIONS.

ALLRHRPUMPSHADTHEIRCOOLERSREPLACED.

OTHERSAFETYRELATEDHEATEXCHANGES WEREINSPECTED FORSIMILARCONDITIONS.

NOPROBLEMSWEREFOUND.REFSPECH-1004ANDPLAS432REFNCR90-0114.CLOSEDRHRTSH-E11-2N600A WASFOUNDOUTOFTOLERANCE DURINGSI-249-306.

THESWITCHWASREPLACEDPERTHESURVEILLANCE.

CLOSEDINADVERTENT ISOLATION OCCURREDTORHRSDCINBOARDISOVALVEDURING16CWORKACTIVITIES TOREPLACEPERMISSIVE PRESSSWITCHPIS-821-2N018A.

REF.WAV16020PLANNERSGUIDEWASREVIEWEDBYI6CASSISTFOREMAN.EXTENSION TOPOSTCYC25APPROVEDBYPORC92-168.ECO93-6041INSTALLED WIRINGINT8-2000682.

CLOSEDPOSITIONINDICATION FOR'O'HRPUMPBREAKERWASLOST.WAV10119INVESTIGATED ANDFOUNDASPRINGCLIPHADFALLENFROMTHEBREAKERLINKAGEANDALLOWEDTHELINKAGETOSEPARATE.

ACLIPWASINSTALLED ANDTHEBREAKERSTROKEDSAT.CLOSEDPSV-251-F030C LIFTEDSEVERALTIMESWHILEFILLINGANDVENTOFTHE'A'OOPINPREPARATION FORSHUTDOWNCOOLING.REFMASTERSOOR1"90-259CLOSEDBOTHLOOPSOFLPCIWEREINOPATTHESAMETIMEWHILEPLACINGRHRINTOSHUTDOWNCOOLINGMODE.CLOSEDSNUBBERNOTISTALLEDON'A'ECIRCPIPINGASREQUIRED.

RHRSHUTDOWNCOOLINGDIVIWASREQUIREDTOBEOPERABLE.

THESNUBBERWASREMOVEDVIAWAY00350ANDTOBERE-INSTALLED PERWAY00155WHICHWASCLOSEDWITHOUTINSTALLING THESNUBBER.THESNUBBERWASREPLACEDPERWAY00294.CLOSEDRHRDISCHARGE RELIEFPSV-251-F025A FOUNDLIFTED.INVESTIGATION COULDNOTDETERMINE ACAUSE.REFWAV13549.CLOSED PMI4910/02/95~SUSQNNASESSOORSUMMARYREPORTFORSYS49-UNIT2SORTEOBYUNIT~ISSUEDATE&SOORIIPMISPAGE20SYSSOORNOCCURDATEDESCRIPTION 492-91-159OTHERAFFECTEDSYS:492-91-171OTHERAFFECTEDSYS:492-92-007OTHERAFFECTEDSYS1492-92"020OTHERAFFECTEDSYS:492-92-032OTHERAFFECTEDSYS:492-92-033OTHERAFFECTEDSYS:492-92-026OTHERAFFECTEDSYS:64492-92-095OTHERAFFECTEDSYS:492-92-108OTHERAFFECTEDSYS:~492-92-118OTHERAFFECTEDSYS:6/13/917/09/911/21/922/24/923/19/923/19/923/23/929/13/929/26/9210/07/92RHRSUCTIONPRESSUREGAUGEROOTVALVESWEREFOUNDCLOSED.THEVALVEWEREPLACEDINTHEIRPROPERPOSITION.

INVESTIGATION COULDNOTDETERMINE HOWTHEVALVESGOTCLOSED.LRF91-249-231 WASISSUED'EF DCN91-2331.CLOSEDROOTVLVOP1-PI-2R0038 WASFOUNDCLOSEDVS:OPENASREQUIREDBYCL-249-0015.

FOUNDDURINGSO249-002.ROOTCAUSECOULDNOTBEDETERMINED.

THEVALVEWASRESTOREDTOTHEOPENPOSITION.

OPSANDI&CREVIEWEDTHEEVENT.CLOSEDRHRSI-249-306 FOUNDTE-E11-2N009A DEFECTIVE d2N600AOUTOFCALWAV26047REPLACEDTHEMETERMODULEINTH1;INDICATION CIRCUIT,.

WAV26025REGAL'EDTSH-E11-2NBOOA.

CLOSEDWORKERNOTICEDTHAT2BOLTSWEREMISSINGFROMRHRFLANGEWHEREFLOWORIFACEFO-E11-20001-82 WASCONNECTED.

MAINTWASCONTACTED ANDTHEMISSINGBOLTSWEREINSTALLED PERWAV23106NOCAUSECOULD'BEDETERMINED FORTHEABSENSEOFTHEBOLTS.CLOSED.PSV-251-F029 LIFTEDDURINGLINEUPFORSHUTDOWNCOOLING.VALVERESPONDED PERDESIGNTOOVERPRESSURECONDITION LIKELYCAUSEDBYACCOUSTIC HYDRAULIC EXCITATION.

REPLACEMENT OFTHEVALVEISPLANNEDASPARTOFTHERELIEFVLVUPGRADEPROGRAM.CLOSEDPSV-251-F025A APPARENTLY LIFTEDDURINGSHUTDOWNCOOLING.WAV23161INVESTIGATED, THEVALVEBODYWASLIGHTLYTAPPEDANDTHEVALVERESEATED.

CLOSEDBKR28226062,

28216053, 28237043d28237043A NOTEQ,NCR92-049.ERF'SANDWAISWRITTEN.THEBREAKERSINCUBICLES28216053AND28226062WEREREPLACED.

EQAR-023ANDEQDF-48ISBEINGREVISEDTOSPECIFYTHEREQUIREDSUPPLIEROFTHECIRCUITBREAKERS.

CLOSEDFLOWTHRURHRCHECKVLVF031A/F046A LIFTED'A'UCTION RELIEFPSV-251-F030A.

THE'A'HRPUMPANDASSOCIATED LPCIFLOWPATHWERESUBSEQUENTLY DECLAREDINOPDUETOTHENEEDTO,ISOLATEAPOTENTIAL RXVESSELDRAINPATH.REFWAV20523.MNTREPAIREDF046APERWAP23099.CLOSEDESFACTUATION'WHEN RHROUTBOARDISOLATION HV-251-F008 CLOSEDDURINGSHUTDOWNCOOLING.'8'HRPUMPHADTRIPPED.REFPLA541.DEFECTIVE RELAYBASEON821HK94WASREPLACEDBYWAV20623.CLOSED'A'HRPUMPFAILEDT~~TDURINGSYSTEMRESTORATION FOLLOWING OUTAGEACTIVITIES.

ATBREAKER2A20101,AFLAGWASUPONTHE'A'HASE50/51RELAY.DETERMINED CAUSEOFTHISEVENTWASANIMPROPERLY ADJUSTEDLIMITSWITCHFORHV251F004A, RHRPUMPSUCTION.THEACTUATORWASINSPECTED/ADJUSTED PERMT-GM-050.

THEVALVEWASTESTEDSAT.MT-GM-050 REVISEDTOENSURECORRECT4TRAINLIMITSWITCHPOSITION.

CLOSED2.

PMIS.4910/02/95SUSQNNASESSOORSUMMARYREPORTFORSYS49-UNIT2SORTEDBYUNIT,ISSUEDATE6SOORNPMISPAGE21SYSSOORN492-92-126OTHERAFFECTEDSYS:492-92132OTHERAFFECTEDSYS:69492-92-133OTHERAFFECTEDSYS:54993460OTHERAFFECTEDSYS:4993-458OTHERAFFECTEDSYS:4993-461OTHERAFFECTEDSYS:4993-467OTHERAFFECTEDSYS:4994-175OTHERAFFECTEDSYS:4994-241OTHERAFFECTEDSYS:4994-240OCCURDATE10/15/9210/26/9210/26/9212/11/9312/19/9312/21/9312/21/933/15/944/02/944/07/94DESCRIPTION RELIEFVALVEONTESTPUMPBLEWOFFDURINGSE-249-202.

PRESSUREWASAT800PSI.WORKERWASDRENCHEDWITHWATERBUTNOTCONTAMINATED.

THETESTSKIDWILLBEREWORKEDTOELIMINATE COMPRESSION FITTINGSONRELIEFVALVES.CLOSEDLOOSETERMINATION ONTERMINAL81OFRELAY821H-K59CAUSEDTHERELAYTODE-ENERGIZE.

OCCURREDDURINGPCISTESTINGUNDERSE-269-200 FORDCP92-9006.CLOSED.SHUTDOWNCOOLINGVALVESISOLATEDDUETOGROUNDEDLEAD,ESFACTUATION.

HV-261F009 ANDHV-251F015A CLOSED.ERTREQUIRED~DETERMINED CAUSESWERE:1)LEADWASNOTTERMINEATED.

2)INVOLVEDPERSONNEL DIDNOTPLANFOREVERYPOSSIBLEFAILURE.3)TIGHTWORKSPACE/PHSICALLY DIFFICULT.

REFPLAS648.CLOSEDRHRHV-251-F0038 FAILEDTOOPENFOLLOWING CLOSUREWHILEINSDC.SiTHEVALVEWASCLOSEDBECAUSECOOLDOWNRATEWASTOOHIGH.OPSINVESTIGATION FOUNDTHEVLVBREAKERTHERMALSHADTRIPPED.DETERMINED CAUSEWASTHERMALBINDING'P-149/249-002 WEREREVISEDTOPREVENTRECURRENCE.

CLOSEDVACUUMSUCKEDVLVBONNETFORHV-261F0038 BACKONTOVLVBODYDURINGWAV33836BREACHANDDISASSEMBLY ONTHERHRSYSTEM.THEBONNETWASRE-INSTALLED TOTERMINATE THEVACUUMLEAKAGE.ERTREQUIRED.

NDAP-QA-0302 REV3ISSUED.OPSREVIEWEDTHEEVENT.MAINTREVIEWEDTHISEVENTWITHMAINTPLANNERS.

CLOSEDRHRRADWASTEVENTVLV261-811FOUNDUNCAPPEDCONTRARYTOCLWHICHREQUIRESITTOBECAPPED,CL-249-0018.

PROBABLECAUSEWASDURINGFILLANDVENTEVOLUTION.

OPSWILLREVIEWTHISEVENT.MOATRAININGCYCLE94-1COMPLETE.

CLOSEDPOTENTIAL STATUSCONTROLEVENTWHENWRONGDIVRHRCLIMPLEMENTED ROOTCAUSEOFTHISOCCURRENCE WASOPERATORERROR.ANINDEPENDENT VERIFICATION WASPERFORMED.

MOA94-1REVIEWEDTHISEVENTSSOOR93-201WILLADDRESSVALVELOCKINGPOLICY/METHODS'LOSED HANDWHEEL FORRHRLOOPAINBOARDINJECTION TESTVLVOFFOFSTEMSFOUNDONGRATING.VLV251063.CONDITION WASFOUNDDURINGINITIALDRYWELLENTRYFOLLOWING SHUTDOWN.

INVESTIGATION FOUNDTHEVALVESTEMHADFAILEDDUETOHIGHSTRESSLOADINGANDPOORDESIGNSTHEVALVEWASREPLACEDWITHADIFFERENT DESIGNPERWAV43319RIE940081.CLOSEDMATERIALCUTFROMPIPEHANGERCLAMPW/0WORKINSTRUCTIONS ORENGINERINGANALYSIS.

HANGERGBB-205-H89

~WAV43467.HEDETERMINED CAUSEWASMIS-INTERPRETATION OFTHEWORKPLANBYTGROUPFOREMAN.NCR94-079,CALEC-049-1007

'SE-AS-IS DISPO.MAINTCONDUCTED TRAININGONTHEEVENT.CLOSEDSCAFFOLDING INTERFERED WITH'8'HRDISCHCHECKVALVECLOSING.SCAFFOLDING BUILTNEARTHE'8'UMPDIDNOTALLOWTHECHECKVALVEHANDLETOSWINGFULLYINTHECLOSEDPOSITION.

TRAININGWASCONDUCTED FORTHE'DRAIN'REWS.

PMIS:EVR49 10/02/95SUSQUEHANNA SESSOORSUMMARYREPORTFORSYS49-UNIT2SORTEDBYUNIT,ISSUEDATE6SOORNPMI5PAGE22SYSBOORNOCCURDATEDESCRIPTION OTHERAFFECTEDSYS:4994245OTHERAFFECTEDSYS:60,624994-249OTHERAFFECTEDSYS:4994-254OTHERAFFECTEDSYS:4994-266OTHERAFFECTEDSYS:4994-283OTHERAFFECTEDSYS:4994-356OTHERAFFECTEDSYS:4994-366OTHERAFFECTEDSYS:4/08/944/10/944/10/944/17/944/29/945/29/946/04/94CLOSEDFLOORDRAINSBACKEDUPWHILEDRAININGDIVIiRHRUSINGFLOORDRAINSINTHRRHRPIPEWAY.HPCIANDRCICROOMSWERECONTAMINATED'00 SQFEET,LVLWASBKWET.REFACR94-10.THEDRAINBLOCKAGEWASCLEARED.01-AD-055 REV8INCLUDESDIRECTION TOMONITORFLOORDRAINSDURINGDRAININGEVOLUTIONS.

CLOSEDWATERLEAKEDFROMRHRHV"251-F050A PRESSURESEALRESULTING INDRYWELLAREACONTAMINATION.

400SQFEET,LEVELSWERE20,000DPMWET.REFACR94011.DETERMINED CAUSEWASWHENTHEVALVEBONNETWASRAISEDUNEVENLYINTHEINITIALRE-INSTALLATION, RESULTING INITBEINGCOCKED1/4INCH.PROPERADJUSTMENT WASMADE,.CLOSEDDURINGLLRTDRAINVLV251018WASFOUNDOPENVS:CLOSEDASREQUIREDBYTHELLRTLINEUP.THEVALVEWASOPENED-BYOPSTOSUPPORTDRAININGOFTHERHRSYSTEM.THELLRTTAGWASNOTNOTICEDBYTHEOPERATOR.

CORRECTIVE ACTIONTRACKEDUNDERSOOR94-245.CLOSEDPOTENTIAL EXISTEDFORHIGHFLOWISOLATION FOLLOWING SE-249-203 DUETOVALVECONFIGURATION ONINSTRUMENTATION.

THESUPPLYVLVSTOTHESWITCHESWEREOPENEDPRIORTOTHEROOTVALVESBEINGOPENED.PCAF'5WEREISSUEDTOTHEAPPROPRIATE

'SE'ROCEDURES TOPREVENTRECURRENCE.

CLOSEDAMBERLIGHTFORHV-251-F049 BLEWWHENHSS-25111A WASPLACED.INTHEEMERGENCY POSITIONDURINGTP-200-'010.

THEBULBWASREPLACEDANDTHEEVENTWASREPEATED.

TPWASHALTEDANDINVESTIGATION INITIATED.

DMGUPDATEDRSPSCHEMATICS TOREFLECTCORRECTRESISTANCE VALUES.CLOSED.86DRHRPUMPDISCHARGE CHECKVALVESNOTSEATINGTOMAINTAINKEEPFILLPRESSURE:

CONDITION FOUNDDURINGRESTORATION OFSE-224-207

'HEA6CRHRCHECKVALVESWEREFOUNDNOTCLOSEDDURINGPREPARTION FORTHEVESSELHYDRO.INVESTIGATION FOUNDTHEVALVEDISKSTOPSWERETOOSHORT,VENDORERROR.PORC94-136REVIEWEDRESO.REFPLI78723.'.ACT:TRNG-INCLUDETHISEVENTINENGRCONTINUING TRAININGMNTSAIE06393.TRNGSAIE06395~REVIEWRIEPROCEDURES.

RHRKEEPFILLISOLATEDWITHOUTTAXINGPUMP4XVMOTORBKRSOOS,RESULTING INCONFIGWITHPOTENTIAL FORWATERHAMMER.THEDCKNIFESWITCHESWEREOPENEDANDYELLOWTAGGEDTOPREVENTPUMPSTART.PCAF1-95-1016 REVISEDNDAP-QA-0323 N.ACT:CMPL-CLOSUREr22TOTAL:105

UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUU SSSSSSSSSS SSSSSSSSSSSS SSSSSSSSSSSSSSSSSS SSSSSSSSS SSSSSSSSSSSSSSSSSSSSS SSSSSSSSSS 000000000000000000 0000000000000000000000000000.00'000000000000000000000000000 00000000777777777777 77777777777 7777777777777777777777000000000000000000 0000000000'00000000000000000000oq00000000,00oqo'o'POQ0000000 PQOOPQPOTTTTTTTTTTTT TTTTTTTTTTTT TTTTTTTTTTTTTTTTTTTT1111111111111111111111111111111111111111111 JJJJJJJJJJ JJJJJJJJJJ JJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJOOOOOOOOOO OOOOOOOOOOOO OOOOOOOOOOOOOOOOOO-OOOOOOOOOOOOOOOOOOOOOOOOOO 0000000000 BBBBBBBBBBB 888888888888 BeBeBBBBBeee8888888888 8888688888 888888Be8888BBBBBBBBBBBB 88888888888 000000000000000000

'00000000000000000000000000000000000000000000000000000000 000000006666666666 666lg66666666 6666666666666666666 666666666666 666666666666666666666666 6666666666 555555555555 SSBSSSSSSSSS 555555556555555 6665656658 555555555555555555 55555555555 000000000000000000 0000000000000000000000~00000000000000000000000'00000000000 000000008888888888 888888888888 8888888888888888888888888888888888888888888888888888 8888888888 JJJJJJJJJJ JJJJJJJJJJ JJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJOOOOOOOOOO OOOOOOOOOOOO 00'0OO~OOOOOOOOOOOOOOGOOOOOOOOOOO000000000000 0000000000 BBBBBBBBBBB 888888888888 Be88BB888888BBBBBBBBBB 8888888888 88BBBe.BBBeBBBBBBBBBBBBBB BBBBBBBBBBB EEEEEEEEEEEE EEEEEEEEEEEE EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE EEEEEEEEEEEE NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN'NNNNNNNNNNNNNNNNNNNNN.NNNNN~-NNNNNODDDDDDDD DDDDDDDDDD DDDDDDiDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD DDDDDOOOD e0 OpenandClosedCondition ReportDatabySelectedSystem27-"Feb-96 SearchonSystemNumber:49ForInformation OnlyCRNO.UNITSYS//EVENTDATENC?OPAFFECTED?

REPORTABLE?

LEVELRESOCLOSEDREPEAT.REPEATFF?FF?MPFF?MPFF?95-00511493/28/95YESNONO2RCATHEBREAKERMAGNETICTRIPSETPOINT, 300AMPSPECIFIED INE-612,SH7,REV.7FORBREAKERIB246-021ISBEYONDBREAKERTRIPRANGEOF90-270AMP.BREAKER.TRIPSETPOINTOF300MAYNOTBEACHIEVABLE.

==

Description:==

SIMILARPROBLEMWASIDENTIFIED FOR250VDCMCCBREAKERSPEREDR094-041.THEREFORE, SITEENGINEERS WEREMAKINGSURETHATSIMILARPROBLEMDOES.NOTEXISTFOR480VACMCCBREAKERS.

DURINGINSTALLATION OFSEISMICCLIPSFOR480VACMCCBREAKERIB246-021, THISPROBLEMWASDETECTED.

References:

1EquipNostIB246-02I9540691494/265YESNONODURINGPERFORMANCE OFTP-059-001, ITWASNOTEDTHATSEVERALNUTSONTHEBOTTOMSUCTIONSTRAINERS FORRHRWERENOTPROPERLYTORQUED..Description:

DURINGTHECOURSEOFTP-059-001 (SUPPRESSION POOLDEBRIS/SUCTION STRAINERINSPECTION),

ANUTONABOTTOMRHRSUCTIONSTRAINERWASFOUNDNOTPROPERLYTORQUED.WHENTHEDIVERROTATEDTHENUT,BOTHNUTSANDTHESTUDWEREFREETOROTATE.OTHERNUTSONTHESTRAINERWERECHECKEDANDATOTALOFFIVEWEREFOUNDONTHE'A'OWERSTRAINER.

References:

,WAS53415EquipNos:IF407BIF409BIF4IOBRptSystem

SearchonSystemNumber:49CRNO.UNITSYS//EVENTDATENC2OPAFFECTED?

REPORTABLE?

LEVELRESOCLOSEDREPEATREPEATFF?FF?MPFF?MPFF?NOI95-92'9.'-'vP~THE2DRHRPUMPTRIPPEDDUETOANAPPARENTMOTORBURNUP.5/8/95YESYESRCA2/8/96Description:

WHENTHE2DRHRPUMP,2P202D,WASSTARTEDFORSUPPRESSION POOLCOOLING,APLANTOPERATORMONITORING THEPUMPFROMASAFEDISTANCEOBSERVEDSPARKSANDFLAMESCOMINGFROMTHEMOTORVENTLOUVERS.HEIMMEDIATELY RADIOEDTHECONTROLROOMPCOANDHADTHEPUMPSHUTDOWN.

PUMPOPERATING PARAMETERS ASVIEWEDFROMTHECONTROLROOMAPPEAREDTOBENORMALDURINGTHEPERIODFOLLOWING THEMOTORSTART.INITIALINVESTIGATION HASIDENTIFIED DAMAGETOTHEMOTORWINDINGS.

OILWASSEENTOBEDRIPPINGINSIDETHEMOTORCASINGONTOTHEROTORANDAFILMEXISTEDONTHEVENTLOUVERS.OILWASALSODRIPPINGFROMTHEMOTORCASINGONTOTHEFLOOR.ADDITIONALLY, PUMPGROUNDOVERCURRENT RELAYTARGET50AGHADTRIPPEDDURINGTHEEVENT.YES

References:

SPECEI107WAV50299EquipNos:2P202DFLAMESEMANATING FROMTHEPUMPMOTOR,PRESENTFORONLYAFEWSECONDS,DIDNOTREQUIREANYMANUALINTERVENTION BEFOREDYINGOUTONTHEIROWN.THECONTROLANDTRIPDCKNIFESWITCHWASOPENEDTOPREVENTSTARTOFTHEPUMP.9542062495/11/95NONOpŽpltp~POSSIBLEPUMPSEALDAMAGEON2DRHR.Description:

NOINVEST0/10/95

References:

EquipNos:2DRHRPUMPMOTORWASREMOVEDPERMT-049-002.

MT-049-001 RHRPUMPDISASSEMBLY/REASSEMBLY STEP-BY-STEP CONDITIONAL WASNOTREFERENCED ANDSTEPS5.1.1PAND5.1.1DWERENOTPERFORMED ASREQUIRED.

2RptSystem SearchonSystemNumber:49CR,NOUNITSYS//EVENTDATENC?OPAFFECTED?

REPORTABLE?.

LEVELRESOCLOSEDREPEATREPEATFF?FF?MPFF?MPFF?NOINVEST0/10/959542682496/20/95NOYES4@"%pA(c6ASFOUNDVOTESTESTOFBV=251F0278 DATED6/20/95RESULTEDINFINALMEASURED.

THRUST35781LBSEXCEEDING ALLOWABLE LIMITOF19340LBSPERDRAWINGM-1395.SEEEWRATTACHED..

==

Description:==

ANELECTRICAL CALIBRATION WASPERFORMED INANASFOUNDCONFIGURATION.

MEASUREDTHRUSTSEENWAS35781BLS.THEVOTESTESTIMMEDIATELY FOLLOWEDWITHAMAXIMUMTHRUSTOF34129LBS.(EQUIPMENT ERRORNOTINCLUDED).

THEALLOWABLE LIMITOF19340LBSISBASEDONEXTENDEDACTUATORTHRUSTRATING.

References:

EWRM58023EquipNos:IIV251F027B 3RptSystem SearchonSystemNumber:49CRNO.UNITSYSItEVENTDATENC?OPAFFECTED?

REPORTABLE?

LEVELRESOCLOSEDREPEATREPEATFF.FF.MPFF?MPFF795-0344149S/1185YESNONO2RCA0/12/955gI,'ftw(o'c~UgY,=,IS,I F02'PMAYBEINADEGRADEDCONDITION BECAUSEOFPOTENTIAL SIGNIFICANT OVERTHRUST RESULTING FROMITTIPPINGITSTHERMALOVERLOADS (REFERENCE WAS21676DATED11/25/92).

INADDITION, TORQUESWITCHREPLACEMENT WASPERFORfvKD ASPARTOFINVESTIGATION ANDNOPOSTMAINTENANCE VOTESTESTWASDONE.THISISINVIOLA@ONQFAD-QA-531, THEPROCEDURE INEFFECTATTHETIME.Description:

DURINGAREVIEWOFHV-151F027B VALVEMAINTENANCE HISTORY,ITWASDISCOVERED THATTHEMOVTRIPPEDITSTHERMALOVERLOADS TWICE(REFERENCE WAS21676DATED11/25/92),

INDICATING THATPOTENTIAL SIGNIFICANT OVERTHRUST ANDOVERTiORQUE

@ASOCCURRED.

INANINVESTIGATION, ADEFECTIVE TORQUESWITCHWASFOUND.TfgWADOCUMENTED TORQUESWITCHREPLACEMENT WASPERFORMED; HOWEVER,THEREWAgQOEVIDENCEOFAPOST-MAINTENANCE VOTESTEST.THEDATEOFTHELATESTVOTESTESTPEQ~ORMED Og~ISMOVIS4/18/92(WAS10396).aTWOCONCERNSEXIST1.THEMOV)MAYBEINADEGRADEDCONDITION PECAN:.SE OFTHESIGNIFICANT OVERTHRUST ANDOVERTORQUE RESULTING FR(/II'f@PPIhPITSPfEQUALOVERLOADS.-

References:

WAP34011WAS51119WAS51144EquipNos:HVISlF027B 2.NOTPERFORMING APOST-MAINTENANCE VOTESTESTFOLLOWING TORQUESWITCHREPLACEMENT ISINVIOLATION OFAD-QA-531, REV.0,ATTACHMENT BSECTION1.9WHICHWASINEFFECTATTHATTIME.RptSystem SearchonSystemNumber:49CRNOUNITSYS//EVENTDATENC?OPAFFECTED?

REPORTABLE?

LEVELRESOCLOSEDREPEATREPEATFF?FF?MPFF?MPFF?NONO95-04002492/23/96ANOU'A/0'~g,~~~~MOVDATADETAILDRAWINGM-l404FORVALVETAGNO.EV2/lIF102R CONTAINSTHEINCORRECT STEMMATERIAL(ASTMA-582GR416VERSUSTHEACTUALMATERIALSA-564GR-630.)Description:

DURINGREVISIONOFTHEMOVDATADETAIL,LIMITSWITCHSETTINGANDTORQUESWITCHSETTINGSFORHV251F103A (CALCULATION NO.EC-049-0552),

THEINCORRECT STEM'MATERIAL WASNOTED.THISINCORRECT STEMMATERIALISINPUTTOTHEVOTESSOFTWAREFORVOTESTESTING.THEREFORE, BASEDONTHEINCORRECT STEMMATERIAL, THEVOTESTHRUSTDATAFORTHISVALVEISOFFSET.

References:

CR95-0447WAV-50869EquipNos:HV251FI03A95-04372499/18/95NONONO2RCAFOREIGNPOTENTIAL REVIEWWASNOTPERFORMED PRIORTOPERFORMING SE-259-100, TEST2.Description:

WHILEPERFORMING REVIEWFOLOWINGCOMPLETION OFSE-259-100, ITWASNOTICEDTHATTHEPREREQUISITES INCLUDETHEFOREIGNPOTENTIAL REVIEW.ATTHETIMESE-259-100, TEST2WASPRESSURIZED, PERMIT2-95-2001 WASACTIVE.THESYSTEMPERMITSUPERVISOR WASTHEONLYSIGN--ONONTHE2001PERMIT.THEPREREQUISITES WERECOMPLETED PRIORTOPERFORMANCE OFTEST1ON9/14/95.ATTHATTIMEFOREIGNPOTENTIAL REVIEWWASNO.

References:

EquipNos:RptSysteut SearchonSystemNumber:49CRNO.UNITSYS¹EVENTDATENC?OPAFFECTED?

REPORTABLE?

LEVELRESOCLOSEDREPEATREPEATFF?FF?MPFF?MPFF?954472249912885NONONO2INVESTNORHRCOMMONPIPINGCONTAINED WATERALTHOUGHITWASTHOUGHTTOBECOMPI.ETELY DRAINED.Description:

AR206A5(LIQUIDRWCOLLECTPANEL2C209SYSTEMTROUBLE)UNEXPECTEDLY ALARMEDINTHECONTROLROOMON2C651ANDMOMENTSLATERAR207(DWFLOORDRNSUMPAHI-HILVL)ONIC601ALSOALARMED.RECORDERLR-26102A INDICATED LEVELINTHE'A'UMPINCREASING.

THEUNIT2PCOCONTACTED THEWORKCONTROLCENTERTOSEEIFANYONGOINGACTIVITYWASCAUSINGTHEINCREASED SUMPLEVEL.THEWORKCONTROLCENTERSUSPECTED APSV(PSV251F126)

REWORKTHATWASINPROGRESSSOANOPERATORWASDISPATCHED TOINVESTIGATE.

THECONTROLROOMPCOCONTACTED THEDRYWELLCOORDINATOR TOINVESTIGATE.

THEDWCOORDINATOR REPORTEDTOTHECONTROLROOMTHATTHESUMPLEVELLOCALINDICATION ONEL.719WASSHOWING97%.HETHENWENTINTOTHEDRYWELLANDFOUNDTHESUMPFILLEDANDSLIGHTLYOVERFLOWING.

THETEMPORARY SUMPPUMPCORDWASFOUNDUNPLUGGED.

THEPUMPWASPLUGGEDINANDTHEPIPINGDRAINWASREDIRECTED INTOADOWNCOMMER.

References:

EquipNostMECHANICAL MAINTENANCE WASSIGNEDONTOANDWORKINGWITHINTHEBOUNDARIES OFSYSTEMPERMIT2-95-2000.

THESUBJECTPIPINGWASPREVIOUSLY DRAINEDTOSUPPORTANLLRT(SE-259-030).

RptSystem

SearchonSystemNumber:49CRNO.UNITSYS//EVENTDATENC7OPAFFECTED?

REPORTABLET LEVELRESO'LOSEDREPEATREPEATFF?FF?MPFF?MPFF?95-051724910/9/95NONONO2INVESTNOHANGERDRAW1NGDCA-210-H1, REV.3DOESNOTREFLECTTHEACTUALPLANTINSTALLATION OFDCA-210-HIDescription:

WHILEPERFORMING AVT3INSPECTION ONDCA-210-H1, ITWASNOTEDTHATTHEHANGERDRAWINGSHOWSITEM¹5TOBEASIZE20SPRINGCAN,HOWEVER,ASIZE19SPRINGCANISACTUALLYINSTALLED.

FURTHERINSPECTIONS REVEALEDTHATGEMS¹3,$,6,),STHATAREACTUALYINSTALLED INTHEPLANTAREDIFFERENT THANWHATISSPECIFIEP QQTfg~GODDRAWINGBILLOFMATERIAL.

THEDRAWINGSPECIFIES THESEPARTSTOPEPPRP2.5'i%PLOPPRACKETTHEYAREACTUALLYFORA2.25"WELDEDBRACKET.THEWELDDE'JAP.OgTgEQQ~GSPECIFIES AFLAREBEVELWELDONTWOSIDESWITHAFILLETWELDONTPE'PVvqOPPOSESP)gS,THEACTUALFIELDINSTALLATION DOESNOTHAVETHEFLAREBEVELWELDSPfSg+LED.D/SCU)SION'S WITHSITESYSTEMENGINEERING ANDTHROUGHTHEIRINVESTjGQTlqN 6gTHE$$QVEOPTEDDRAWINGDISCREPANCIES ISWASCONCLUDED THATASUPERSEQPD(

ID'AS+COgPgPATED INTOREV.3OFDCA-'210-HI.

,I.ft

References:

EquipNos:RptSystem

SearchonSystemNumber:49CRNO.UNITSYSttEVENTDATENCTOPAFFECTED?

REPORTABLE?

LEVELRESO~'LOSEDREPEAT-REPEATFF?FF?MPFF.MPFF?95453924910/1485NONO1RCANODURINGPERFORMANCE OFSE-200-002 "ASMECLASSIBOUNDARYSYSTEMLEAKAGE/HYDROSTATIC PRESSURETESTING"RHRHEADSPRAYIBSHUTOFFHV-251F022 AUTOCLOSED.ESFACTUATION

==

Description:==

STEP6.1.8OFSE-200-002, OPENSRHRHEADSPRAYIBSHUTOFFHV-251F022.

DURINGRPVPRESSURIZATION, ITWASNOTICEDTHATTHEF022VALVEHADCLOSED.THISOCCURREDDURINGTHE2PERFORMANCES OFSE-200-002 ON10/13/95AND10/14/95WHENPRESSUREWASABOVE98PSIG.ATNOTIMEINTHISPROCEDURE ISTHISVALVECLOSED,INTERLOCK DEFEATEDORIDENTIFIED THATTHISVALVEWOULDAUTOCLOSE.tNSE/PNSSWASNOTIFIEDOFTHESEOCCURRENCES ANDCONCLUDED THATTHEVALVEWOULDAUTOCLOSE,IFOPENED,WHENRPVPRESSUREISGREATERTHAN98PSIGVIARELAYB21H-K82INPANEL2C622(REF.8856-Ml-B21-101(10)).

STEP6.1.15WOULDHAVEPREVENTED THISISOLATION TOOCCUR,BUTTHISSTEPISONLYPERFORMED DURINGTHE"HYDRO"NOTTHE"SYSTEMLEAKAGE"PRESSURETEST.(ONTHESEDATESSE-200-002 SYSTEMLEAKAGETESTWASBEINGPERFORMED NOTTHEHYDRO.)

References:

LER388/95-013 EquipNos:HV25IF022 10RptSystem

SearchonSystemNumber:49CRNOUNITSYS//EVENTDATENC?OPAFFECTED?

REPORTAIILE?

LEVELRESOCLOSEDREPEAT'EPEATFF?FF?MPFF?MPFF~95-066424911/16/95NONO2RCANOINCORRECT THERMALLOAD.CASEWASUSEDTOQUALIFYTHENEWSURROGATE ASSEMBLIES FOR.PSV251F055A

&BVALVESREPLACEMENT.

THETHERMALLOADCASEUSEDWASUNCONSERVATIVE.

==

Description:==

.

DURINGTHEPREPARATION OFTHEUNITICALCULATIONS FORTHEPSV151F055A

&BVALVEREPLACEMENTS, THEUNIT2CALCULATION EC-PIPE-6027 WASREVIEWEDTODETERMINE IFTHESURROGATE ASSEMBLIES SMILARTOTHEUNIT2MODIFICATION COULDBEUSEDINTHEUNIT2MODIFICATION COULDBEUSEDINTHEUNITIDCP.THEFOLLOWING DISCREPANCY WASFOUND:

References:

EquipNos:UNIT2RHRPSV251F055A

&BVALVESWEREREPLACEDWITHTHESURROGATE ASSEMBLIES PERDCP94-9083..THESURROGATE ASSEMBLIES WEREDESIGNEDTOSIMULATETHEREMOVEDVALVESINWEIGHTANDCENTEROFGRAVITY(CALCULATION EC-PIPE-6027, REV.0).THEREFORE, THERERUNOFME101COMPUTER.

PIPINGANALYSISWASNOTREQUIRED.

HOWEVER,WEIGHT,THERMALANDSEISMICLOADINGWASEXTRACTED ANDUSEDTOQUALIFYTHENEWSURROGATES FORTHERHRVALVES.'HEUNIT2CALCULATION EC-PIPE-6027, USEDINCORRECT THERMALLOAD'CASE TOQUALIFYTHEWELDSBETWEENTHE8"AND6"BLINDFLANGESONTHESURROGATE ASSEMBLIES.

THEREARESEVEN(7)THERMALLOADCASESINTHEEXISTINGMEIOICOMPUTERPIPINGANALYSIS, WHICHARELOCATEDINCALCULATIONS PLS-2643(EC-PIPE-0621)

&PLS-2646(EC-PIPE-0677).

THETHERMALLOADCASESAREDEFINEDBELOW:THRM01-MINIMUMFLOWBYPASSMODEPUMP"D"RUNNINGTHRM02-MINIMUMFLOWBYPASSMODEPUMP"B"RUNNINGIIIlTHRM03-POST-ACCIDENT CONTAINMENT SPRAYPUMPSB&DRUNNINGTHRM04-NORMALSHUTDOWNAFTERBLOWDOWNTOMAINCONDENSER, PUMP"D"RUNNINGTHRM05-NORMALSHUTDOWNAFTERBLOWDOWNTOMAINCONDENSER, PUMP"B"RUNNINGITHRM06-SYSTEMONSTANDBY,NOPUMPSRUNNINGRpISystem SearchonSystemNumber:49CRNO.UNITSYSttEVENTDATENCTOPAFFECTED?

REPORTABLE?

LEVELRESOCLOSEDREPEATREPEATFF?FF?MPFF?MPFF?THRMFA-FAULTEDTHERMALLOADCASE(POST-LOCA TEMPERATURE)

WITHMAXIMUMTEMPERATURE USEDTOQUALIFYFORNOZZLEANDSUPPORTLOADS(SEENOTEBELOW)THELOADCASETHRM01-THRM06SHOULDHAVEBEENUSEDTOQUALIFYTHE8"AND6"BLINDFLANGESONTHEUNIT2MODIFICATION.

HOWEVER,ONLYTHRMOIWASCONSIDERED INTHEQUALIFICATION OFTHESURROGATE ASSEMBLY.

THIS,RESULTEDINUNCONSERVATIVE RESULTS.NOTE:POST-LOCA ENVIORNMENTAL TEMPERATURE RISEISAFAULTEDCONDITION ANDANYEXPANSION STRESSRESULTING FROMTHISCONDITION ISCLASSIFIED ASSECONDARY.

CODEEVALUATION ClFPIPINGSTRESSES/PIPE SUPPORTMEMBERSARENOTREQUIREDFORTHISFAULTEDCONDITION PERBLP25976,DATEDI/23/84.12RptSystem SearchonSystemNumber:49CRNO.UNITSYS0EVENTDATENC?OPAFFECTED?

REPORTABLE?

LEVELRESOCLOSEDREPEATREPEATFF?FF?MPFF?MPFF?6614911/17/95NOCNO1DRHRPUMPFAILEDSURVEILLANCE ACCEPTANCE CRITERIAREGARDING DPVELOPED DIFFERENTIAL

~PRESSURE.

==

Description:==

CWHILEPERFORMING SO-149-002 ANDESTABLISHED PHP.FLGWOFi0I~GPMTiIROUGHTHEHEATEXCHANGER ASREADONTHEFLOWRECORDER,

'PIEIDPIBPDlI<<;ERE1f'GALPRESSUREWASDETERMINED TOBE247PSID.THEACCEPTANCE CRIPOP.TIEIDIFIERPNjIALPRESSUREBETWEEN248AND272PSID.THEIBRHRPUMPPASSEYlTHEI(CCEPTA4QCE

CRITERIA, HOWEVER,WITHNOMARGIN(I.E,RECORDEDDPOF250WITHACCEPT'CE'IA~AZ.250-27tI PSID).-i.ii'~'h4ii/LPf<%'t'i",t it.'BSERVED DIFFERENCES BETWEENFRANDFlVAQUEROLEAPTQ(UPlECTTHERECORDER'S ACCURACY.

THERECORDER'S INDICATION APPEARTSTOBELOWER~Q/tI.CT'PPL, I&6:P$SCONTACTED TOINVESTIGATE.

1&CDETERMINED THEFRINDICATION OUTOFCALIBRATION.LOW P'PROXMATELY IKGPMANDRECALIBRATION WASPERFORMED UNDERWAS7212.THEBANDDPUMPSWERERETESTEDSATISFACTORILY WITHDIFFERENTIAL PRESSURES OF273PSID(250-274ACCEPTABLE)

AND267PSID(248-272ACCEPTABLE).

References:

EquipNos:FRElllR608 13RptSystem

SearchonSystemNumber:49CRNOUNITSYS//EVENTDATENC.OPAFFECIED?REPORTABLE?

LEVELRESOCLOSEDREPEATREPEATFF?FF?MPFF?MPFF?96-0111I49I/30/96NONO2CLOSURE2/2/96CONTAINMENT SPARYOP'SCHANGEDANDCONFLICTWITHSTATEMENT INFSAR.Description:

ON11/21/95, PCAFSWEREPREPAREDTOALLOW,.CONCURRENT USEOFLPCIANDDRYWELLSPRAY.THISCHANGEPROVIDEDMOREFLEXIBILITY INRESPONDING TOPOSTULATED TRANSIENTS THATCAUSEANINCREASETOPRIMARYCONTAINMENT PRESSURE.

PFACS1-95-1157 AND2-95-0520 WEREAPPROVEDANDDISTRIBUTED.

References:

EquipNos:ALATERREVIEWOFTHEFSARINDICATED THEFOLLOWING EXCERPTFROMSECTION6.2.2.2-IFTHEOPERATORCHOOSESTOUSETHECONTAINMENT SPARY,HEMUSTOPENTHESPARYVALVESANDCLOSETHELPCIINJECTION VALVE.CONTRARYTOTHEFSARSTATEMENT ABOVE,THEPCAFSPERMITTED LINE-UPOFBOTHLPCIINJECTION ANDDRYWELLSPRAYATTHESAMETIME.96-0138249.2/7/96NONO2CLOSURE2/9/96NODURINGPERFORMANCE.

OFSI-249-309 (18MONTHCAL.OFREACTORCOOLANTSYSTEMLEAKAGEHIPRESSURE)

PSH-E11-2N018 (SHUTDOWN COOLINGSUCTIONHEADERHIGHPRESSURE)

FOUNDPSH-E11-2N01&OUTOFALLOWABLE VALUE.Description:

FOUNDASFOUNDVALVEONPSH-E11-2N018 AT155.6PSIG.ALLOWABLE VALUEISLESTHANOREQUAL~TO142PSIG(148.7HEADCORRECTED).

References:

EquipNos:PSHEll2N01814RptSystem CRNO.UNITLEADGRPOPAFFECTED?

REPORTABLE?

LVLRESOTYPE974121NONO3CLOSUREEquipNos:SYSTEM:LEVELSWITCHLIS-821-2N024D FAILEDTOMEETACCEPTANCE CI:ITERIA STEP6.2.15OFSI-280-311 (A63867)EvcnlDate:Itrsu(:I<<sure I/24/97ScheduleActualLISD212N024D 80')7-0I"2hIN'I'<)NO3(l.t)SI<ltiI'.quipNSY!<I'I:hl:INAI)VI!I(

II'.NI'/OSCRAhlWASI(l;CEIVI.D l)URI(iNTIII'ERFORMANCE OFSI-280-311.

I'.vrntl)atr:It<'<<<Ctu<<irr1/24/97<:rhi<IntrA<'tu:ilI".iil2I?N<<31)nn97-0123hIVI'COIIIII.Cf COi4l)ITION EquipNus:8YS'II'.hI:HAIRPINCLIPMISSINGONOA510-005 CUBBSHUTTERACTUATION LEVERHINGEPIN.ScheduleActualOASIOEventDate:I/21/97RcsuClos<<re3/2<//97974124NUCTNONODEGRADEDCOND.DEMIN.RESINPERFORMANCE.

2CAUSEDETERMINATION ScheduleActualEventDate:I/24/97Reso5/30/97ClosureEquipNos:SYSTEM:39RptLIkePMIS' t

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