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=Text=
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{{#Wiki_filter:,ACCELERATEDD)STPl~U>ONDEMONSTRA+NSYSTEMhREGULATORYINFORMATIONDISTRIBUTIONSYSTEM(RIDS)ACCESSIONNBR:8904280274DOC.DATE:89/04/24NOTARIZED:NODOCKETIFACIL:50-412BeaverValleyPowerStation,Unit2,DuquesneLightC05000412AUTH.NAMEAUTHORAFFILIATIONNOONAN,T.P.DuquesneLightCo.RECIP.NAMERECIPIENTAFFILIATIONDocumentControlBranch(DocumentControlDesk)
{{#Wiki_filter:,ACCELERATED D)STPl~U>ON DEMONSTRA+N SYSTEMhREGULATORY INFORMATION DISTRIBUTION SYSTEM(RIDS)ACCESSION NBR:8904280274 DOC.DATE:
89/04/24NOTARIZED:
NODOCKETIFACIL:50-412 BeaverValleyPowerStation,Unit2,DuquesneLightC05000412AUTH.NAMEAUTHORAFFILIATION NOONAN,T.P.
DuquesneLightCo.RECIP.NAME RECIPIENT AFFILIATION DocumentControlBranch(Document ControlDesk)


==SUBJECT:==
==SUBJECT:==
Specialrept:on890414,triaxialtimehistoryaccelerometerhorizontaltriggercircuitsidentifiedasinoperable.DISTRIBUTIONCODE:IE22DCOPIESRECEIVED:LTRENCL(SIZE:TITLE:50.73/50.9LicenseeEventReport(LER),IncidentRpt,etc.NOTES:LPDR2cysTranscripts.LPDR2cysPDRDocuments.Applicationforpermitrenewalfiled.050004128RECIPIENTIDCODE/NAMEPD1-4LATAM,PINTERNAL:ACRSMICHELSONACRSWYLIEAEOD/DSP/TPABDEDR5NRR/DEST/ADE8HNRR/DEST/CEB8HNRR/DEST/ICSB7NRR/DEST/MTB9HNRR/DEST/RSB8ENRR/DLPQ/HFB10NRR/DOEA/EAB11N~B-IB9AREGE02RES/DSR/PRABEXTERNAL:EGGGWILLIAMS,SLSTLOBBYWARDNRCPDRNSICMURPHYIGANOTES:COPIESLTTRENCL11111111'111111111111111'1111111114411111122RECIPIENTIDCODE/NAMEPD1-4PDACRSMOELLERAEOD/DOAAEOD/ROAB/DSPIRM/DCTS/DABNRR/DEST/ADS7ENRR/DEST/ESB8DNRR/DEST/MEB9HNRR/DEST/PSB8DNRR/DESTjSGB8DNRR/DLPQ/QAB10NRR/DREP/RPB10NUDOCS-ABSTRACTRES/DSIR/EIBRGN1FILE01FORDBLDGHOY,ALPDRNSICMAYS,GCOPIESLTTRENCL1122112211101111111111221111111111118IDRIDSIIRECIPIENIS~PLEASEHELPUSK)REDUCEWMHZ!CXRKACI'%HEDOCUMENI'XWIBDLDESK,ROOMPl-37(EXT.20079)KOELZHZHATEKKlRNAMEFRYDISHGBVZIONLXSISPORDOC%M&ISYOUDGN~TNEZD!DSTOTALNUMBEROFCOPIESREQUIRED:LTTR46ENCL45 E'
Specialrept:on890414,triaxial timehistoryaccelerometer horizontal triggercircuitsidentified asinoperable.
gled~DuqueemLtNuclearGroupP.O.Box4Shippingport.PA15077~Telephone(412)393~April24,1989ND3MNO:1867BeaverValleyPowerStation,UnitNo.2DocketNo.50-412,LicenseNo.NPF-73SecialReortUnitedStatesNuclearRegulatoryCommissionDocumentControlDeskWashington,DC20555Gentleman:InaccordancewithAppendixA,BeaverValleyTechnicalSpecification3.3.3.3,"SeismicInstrumentation,"thefollowingSpecialReportissubmitted....Thisreport.isrequiredwhentheconditionsspecifiedinTechnicalSpecification3.3.3.3.barenotsatisfied.OnApril14,1989,2ERS-ACS-1and-3,TriaxialTimeHistoryAccelerometerhorizontaltriggercircuitsfortheContainmentStructureandtheSwitchyard,wereidentifiedasbeinginoperablesinceMay,1987,asaresultofanincorrectcalibrationprocedure.OnApril1,1989,aResponseSpectrumAnalyzerTroublealarmwasobserved,indicatinganinternalfault.Amaintenanceworkrequestwasgeneratedtocorrectthiscondition.Duringtroubleshootingofthecentralcontrolcabinet,withavendorrepresentativepresent,theseaccelerometertriggercircuitswereidentifiedashavingincorrectsetpoints.Theaccelerometeranalogtriggercircuitscausetaperecordingofallthreedirectionalsensorinputsandannunciation,whenthesetpointvalueisreached.'heaccelerometertriggercircuitcardscontainswitcheswhichprovideannunciationwhentheirrespectivesetpointisreached.Thesetpointsarevaluesmeasureding-forces.Itwasdiscoveredthatthehorizontaltriggersetpointvaluet0.0lg)forbothaccelerometertriggercardweresetatthe'verticalalarmswitchsetpointvalue(0.037g).Thecauseforthiseventwasduetoadeficientsurveillanceprocedurewhichincorrectlyspecifiedthesetpointvalues.39042A02748904>4PDRADOCK050004i2PDr.
DISTRIBUTION CODE:IE22DCOPIESRECEIVED:LTR ENCL(SIZE:TITLE:50.73/50.9 LicenseeEventReport(LER),IncidentRpt,etc.NOTES:LPDR 2cysTranscripts.
C April24,1989ND3MNO:1867Page2Thesurveillanceprocedurewasimmediatelyrevisedtoreflectthecorrectsetpointvaluesandtheaccelerometertriggercircuitswerecalibratedtothecorrectvalues.Therewerenosafetyimplicationstothepublicasaresultofthiseventbecausenoseismicactivityoccurredduringtheentireperiodthehorizontalaccelerometertriggercircuitswereincorrectlycalibrated.Thetriggercircuitsfunctiontoinitiateautomaticmagnetictaperecordingoftheseismicevent,nootherautomaticplantactuationsaredesignedtooccurfromatriggercircuit.Inaddition,theverticalaccelerometertriggercircuitswerecorrectlycalibratedandoperationalthroughouttheentiretimeperiod.Verytrulyyours,T.P.NonanGeneralManagerNuclearOperationsJT/cjAttachment  
LPDR2cysPDRDocuments.
Application forpermitrenewalfiled.050004128RECIPIENT IDCODE/NAME PD1-4LATAM,PINTERNAL:
ACRSMICHELSON ACRSWYLIEAEOD/DSP/TPAB DEDR5NRR/DEST/ADE 8HNRR/DEST/CEB 8HNRR/DEST/ICSB 7NRR/DEST/MTB 9HNRR/DEST/RSB 8ENRR/DLPQ/HFB 10NRR/DOEA/EAB 11N~B-IB9AREGE02RES/DSR/PRAB EXTERNAL:
EGGGWILLIAMS, SLSTLOBBYWARDNRCPDRNSICMURPHYIGANOTES:COPIESLTTRENCL11111111'111111111111111'1111111114411111122RECIPIENT IDCODE/NAME PD1-4PDACRSMOELLERAEOD/DOAAEOD/ROAB/DSP IRM/DCTS/DAB NRR/DEST/ADS 7ENRR/DEST/ESB 8DNRR/DEST/MEB 9HNRR/DEST/PSB 8DNRR/DESTjSGB8DNRR/DLPQ/QAB 10NRR/DREP/RPB 10NUDOCS-ABSTRACT RES/DSIR/EIB RGN1FILE01FORDBLDGHOY,ALPDRNSICMAYS,GCOPIESLTTRENCL1122112211101111111111221111111111118IDRIDSIIRECIPIENIS
~PLEASEHELPUSK)REDUCEWMHZ!CXRKACI'%HE DOCUMENI'XWIBDL DESK,ROOMPl-37(EXT.20079)KOELZHZHATE KKlRNAMEFRYDISHGBVZION LXSISPORDOC%M&ISYOUDGN~TNEZD!DSTOTALNUMBEROFCOPIESREQUIRED:
LTTR46ENCL45 E'
gled~DuqueemLtNuclearGroupP.O.Box4Shippingport.
PA15077~Telephone (412)393~April24,1989ND3MNO:1867BeaverValleyPowerStation,UnitNo.2DocketNo.50-412,LicenseNo.NPF-73SecialReortUnitedStatesNuclearRegulatory Commission DocumentControlDeskWashington
,DC20555Gentleman:
Inaccordance withAppendixA,BeaverValleyTechnical Specification 3.3.3.3,"SeismicInstrumentation,"
thefollowing SpecialReportissubmitted....
Thisreport.isrequiredwhentheconditions specified inTechnical Specification 3.3.3.3.b arenotsatisfied.
OnApril14,1989,2ERS-ACS-1 and-3,TriaxialTimeHistoryAccelerometer horizontal triggercircuitsfortheContainment Structure andtheSwitchyard, wereidentified asbeinginoperable sinceMay,1987,asaresultofanincorrect calibration procedure.
OnApril1,1989,aResponseSpectrumAnalyzerTroublealarmwasobserved, indicating aninternalfault.Amaintenance workrequestwasgenerated tocorrectthiscondition.
Duringtroubleshooting ofthecentralcontrolcabinet,withavendorrepresentative present,theseaccelerometer triggercircuitswereidentified ashavingincorrect setpoints.
Theaccelerometer analogtriggercircuitscausetaperecording ofallthreedirectional sensorinputsandannunciation, whenthesetpointvalueisreached.'he accelerometer triggercircuitcardscontainswitcheswhichprovideannunciation whentheirrespective setpointisreached.Thesetpoints arevaluesmeasureding-forces.
Itwasdiscovered thatthehorizontal triggersetpointvaluet0.0lg)forbothaccelerometer triggercardweresetatthe'vertical alarmswitchsetpointvalue(0.037g).
Thecauseforthiseventwasduetoadeficient surveillance procedure whichincorrectly specified thesetpointvalues.39042A0274 8904>4PDRADOCK050004i2PDr.
C April24,1989ND3MNO:1867 Page2Thesurveillance procedure wasimmediately revisedtoreflectthecorrectsetpointvaluesandtheaccelerometer triggercircuitswerecalibrated tothecorrectvalues.Therewerenosafetyimplications tothepublicasaresultofthiseventbecausenoseismicactivityoccurredduringtheentireperiodthehorizontal accelerometer triggercircuitswereincorrectly calibrated.
Thetriggercircuitsfunctiontoinitiateautomatic magnetictaperecording oftheseismicevent,nootherautomatic plantactuations aredesignedtooccurfromatriggercircuit.Inaddition, theverticalaccelerometer triggercircuitswerecorrectly calibrated andoperational throughout theentiretimeperiod.Verytrulyyours,T.P.NonanGeneralManagerNuclearOperations JT/cjAttachment  


April24,1989ND3MNO:1867PagethreeCC'r.WilliamT.RussellRegionalAdministratorUnitedStatesNuclearRegulatoryCommissionRegion1KingofPrussia,PA19406C'.A.Roteck,OhioEdisonMr.PeterTam,BVPSLicensingProjectManagerUnitedStatesNuclearRegulatoryCommissionWashington,DC20555J.Beall,NuclearRegulatoryCommission,BVPSSeniorResidentInspectorMr.AlexTimme,CAPCONuclearProjectsCoordinatorToledoEdisonINPORecordsCenterSuite15001100Circle75ParkwayAtlanta,GA30339G.E.Muckle,FactoryMutualEngineering,PittsburghMr.J.N.Steinmetz,OperatingPlantProjectsManagerMidAtlanticArea.WestinghouseElectricCorporationEnergySystemsServiceDivisionBox355Pittsburgh,PA15230AmericanNuclearInsurersc/oDottieSherman,ANILibraryTheExchangeSuite245270FarmingtonAvenueFarmington,CT06032Mr.RichardJanatiDepartmentofEnvironmentalResourcesP.O.Box206316thFloor,FultonBuildingHarrisburg,PA17120Director,SafetyEvaluation&ControlVirginiaElectric&PowerCo.P.O.Box26666OneJamesRiverPlazaRichmond,VA23261 0}}
April24,1989ND3MNO:1867 PagethreeCC'r.WilliamT.RussellRegionalAdministrator UnitedStatesNuclearRegulatory Commission Region1KingofPrussia,PA19406C'.A.Roteck,OhioEdisonMr.PeterTam,BVPSLicensing ProjectManagerUnitedStatesNuclearRegulatory Commission Washington, DC20555J.Beall,NuclearRegulatory Commission, BVPSSeniorResidentInspector Mr.AlexTimme,CAPCONuclearProjectsCoordinator ToledoEdisonINPORecordsCenterSuite15001100Circle75ParkwayAtlanta,GA30339G.E.Muckle,FactoryMutualEngineering, Pittsburgh Mr.J.N.Steinmetz, Operating PlantProjectsManagerMidAtlanticArea.Westinghouse ElectricCorporation EnergySystemsServiceDivisionBox355Pittsburgh, PA15230AmericanNuclearInsurersc/oDottieSherman,ANILibraryTheExchangeSuite245270Farmington AvenueFarmington, CT06032Mr.RichardJanatiDepartment ofEnvironmental Resources P.O.Box206316thFloor,FultonBuildingHarrisburg, PA17120Director, SafetyEvaluation
&ControlVirginiaElectric&PowerCo.P.O.Box26666OneJamesRiverPlazaRichmond, VA23261 0}}

Revision as of 03:05, 29 June 2018

Special Rept:On 890414,triaxial Time History Accelerometer Horizontal Trigger Circuits Identified as Inoperable. Caused by Incorrect Calibr Procedure.Surveillance Procedure Immediately Revised to Reflect Correct Setpoint Values
ML18041A190
Person / Time
Site: Beaver Valley
Issue date: 04/24/1989
From: NOONAN T P
DUQUESNE LIGHT CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
ND3MNO:1867, NUDOCS 8904280274
Download: ML18041A190 (8)
v • d • e


Text

,ACCELERATED D)STPl~U>ON DEMONSTRA+N SYSTEMhREGULATORY INFORMATION DISTRIBUTION SYSTEM(RIDS)ACCESSION NBR:8904280274 DOC.DATE:

89/04/24NOTARIZED:

NODOCKETIFACIL:50-412 BeaverValleyPowerStation,Unit2,DuquesneLightC05000412AUTH.NAMEAUTHORAFFILIATION NOONAN,T.P.

DuquesneLightCo.RECIP.NAME RECIPIENT AFFILIATION DocumentControlBranch(Document ControlDesk)

SUBJECT:

Specialrept:on890414,triaxial timehistoryaccelerometer horizontal triggercircuitsidentified asinoperable.

DISTRIBUTION CODE:IE22DCOPIESRECEIVED:LTR ENCL(SIZE:TITLE:50.73/50.9 LicenseeEventReport(LER),IncidentRpt,etc.NOTES:LPDR 2cysTranscripts.

LPDR2cysPDRDocuments.

Application forpermitrenewalfiled.050004128RECIPIENT IDCODE/NAME PD1-4LATAM,PINTERNAL:

ACRSMICHELSON ACRSWYLIEAEOD/DSP/TPAB DEDR5NRR/DEST/ADE 8HNRR/DEST/CEB 8HNRR/DEST/ICSB 7NRR/DEST/MTB 9HNRR/DEST/RSB 8ENRR/DLPQ/HFB 10NRR/DOEA/EAB 11N~B-IB9AREGE02RES/DSR/PRAB EXTERNAL:

EGGGWILLIAMS, SLSTLOBBYWARDNRCPDRNSICMURPHYIGANOTES:COPIESLTTRENCL11111111'111111111111111'1111111114411111122RECIPIENT IDCODE/NAME PD1-4PDACRSMOELLERAEOD/DOAAEOD/ROAB/DSP IRM/DCTS/DAB NRR/DEST/ADS 7ENRR/DEST/ESB 8DNRR/DEST/MEB 9HNRR/DEST/PSB 8DNRR/DESTjSGB8DNRR/DLPQ/QAB 10NRR/DREP/RPB 10NUDOCS-ABSTRACT RES/DSIR/EIB RGN1FILE01FORDBLDGHOY,ALPDRNSICMAYS,GCOPIESLTTRENCL1122112211101111111111221111111111118IDRIDSIIRECIPIENIS

~PLEASEHELPUSK)REDUCEWMHZ!CXRKACI'%HE DOCUMENI'XWIBDL DESK,ROOMPl-37(EXT.20079)KOELZHZHATE KKlRNAMEFRYDISHGBVZION LXSISPORDOC%M&ISYOUDGN~TNEZD!DSTOTALNUMBEROFCOPIESREQUIRED:

LTTR46ENCL45 E'

gled~DuqueemLtNuclearGroupP.O.Box4Shippingport.

PA15077~Telephone (412)393~April24,1989ND3MNO:1867BeaverValleyPowerStation,UnitNo.2DocketNo.50-412,LicenseNo.NPF-73SecialReortUnitedStatesNuclearRegulatory Commission DocumentControlDeskWashington

,DC20555Gentleman:

Inaccordance withAppendixA,BeaverValleyTechnical Specification 3.3.3.3,"SeismicInstrumentation,"

thefollowing SpecialReportissubmitted....

Thisreport.isrequiredwhentheconditions specified inTechnical Specification 3.3.3.3.b arenotsatisfied.

OnApril14,1989,2ERS-ACS-1 and-3,TriaxialTimeHistoryAccelerometer horizontal triggercircuitsfortheContainment Structure andtheSwitchyard, wereidentified asbeinginoperable sinceMay,1987,asaresultofanincorrect calibration procedure.

OnApril1,1989,aResponseSpectrumAnalyzerTroublealarmwasobserved, indicating aninternalfault.Amaintenance workrequestwasgenerated tocorrectthiscondition.

Duringtroubleshooting ofthecentralcontrolcabinet,withavendorrepresentative present,theseaccelerometer triggercircuitswereidentified ashavingincorrect setpoints.

Theaccelerometer analogtriggercircuitscausetaperecording ofallthreedirectional sensorinputsandannunciation, whenthesetpointvalueisreached.'he accelerometer triggercircuitcardscontainswitcheswhichprovideannunciation whentheirrespective setpointisreached.Thesetpoints arevaluesmeasureding-forces.

Itwasdiscovered thatthehorizontal triggersetpointvaluet0.0lg)forbothaccelerometer triggercardweresetatthe'vertical alarmswitchsetpointvalue(0.037g).

Thecauseforthiseventwasduetoadeficient surveillance procedure whichincorrectly specified thesetpointvalues.39042A0274 8904>4PDRADOCK050004i2PDr.

C April24,1989ND3MNO:1867 Page2Thesurveillance procedure wasimmediately revisedtoreflectthecorrectsetpointvaluesandtheaccelerometer triggercircuitswerecalibrated tothecorrectvalues.Therewerenosafetyimplications tothepublicasaresultofthiseventbecausenoseismicactivityoccurredduringtheentireperiodthehorizontal accelerometer triggercircuitswereincorrectly calibrated.

Thetriggercircuitsfunctiontoinitiateautomatic magnetictaperecording oftheseismicevent,nootherautomatic plantactuations aredesignedtooccurfromatriggercircuit.Inaddition, theverticalaccelerometer triggercircuitswerecorrectly calibrated andoperational throughout theentiretimeperiod.Verytrulyyours,T.P.NonanGeneralManagerNuclearOperations JT/cjAttachment

April24,1989ND3MNO:1867 PagethreeCC'r.WilliamT.RussellRegionalAdministrator UnitedStatesNuclearRegulatory Commission Region1KingofPrussia,PA19406C'.A.Roteck,OhioEdisonMr.PeterTam,BVPSLicensing ProjectManagerUnitedStatesNuclearRegulatory Commission Washington, DC20555J.Beall,NuclearRegulatory Commission, BVPSSeniorResidentInspector Mr.AlexTimme,CAPCONuclearProjectsCoordinator ToledoEdisonINPORecordsCenterSuite15001100Circle75ParkwayAtlanta,GA30339G.E.Muckle,FactoryMutualEngineering, Pittsburgh Mr.J.N.Steinmetz, Operating PlantProjectsManagerMidAtlanticArea.Westinghouse ElectricCorporation EnergySystemsServiceDivisionBox355Pittsburgh, PA15230AmericanNuclearInsurersc/oDottieSherman,ANILibraryTheExchangeSuite245270Farmington AvenueFarmington, CT06032Mr.RichardJanatiDepartment ofEnvironmental Resources P.O.Box206316thFloor,FultonBuildingHarrisburg, PA17120Director, SafetyEvaluation

&ControlVirginiaElectric&PowerCo.P.O.Box26666OneJamesRiverPlazaRichmond, VA23261 0

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