ML17320A441

Requests Extension to 830615 to Provide Addl Info Requested in Generic Ltr 82-28 Re Inadequate Core Cooling Instrumentation Sys.Summary of Previously Submitted Info Re Westinghouse Differential Pressure Monitoring Sys Encl

ML17320A441
Person / Time
Site:	Cook
Issue date:	03/11/1983
From:	HERING R F INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	DENTON H R Office of Nuclear Reactor Regulation
References
RTR-NUREG-0737, RTR-NUREG-737, TASK-2.F.2, TASK-TM AEP:NRC:0761, AEP:NRC:761, GL-82-28, NUDOCS 8303280050
Download: ML17320A441 (9)

Text

,AREGULAYINFORMATIONDISTRIBUTISYSTEM(RIDS)'AOCESSIONNBR'8303280050DOC~DATE:83/03/11NOTARIZED:NOFACIL:503i'5DonaldO~Cook<<NuclearPowerPlantiUni.t1RIndianaL'503i6DonaldO.CookNuclearPowerPlantiUni,t2iIndiana8AUTH~NAME'UTHORAFFIL-IAT.IONHERINGiR~F~Indiana8MichiganElectricCo,'IRBCI.P~NAME-RECIPIENTAFFILIATIONOEhlTONiH~R.Office-ofNuclearReactorRegulationr,Director

SUBJECT:

Requestsextension;to830615to;provideaddiinfo<<requestedinGenericL<<tr82"28re,'inadequatecorecoolinginstrumentation<<sys;Summa<yofpreviouslysubmittedinforeNestinghousedifferentialpressure-monijtoringsysencl.Dl'STRISUTION,CODE:A046SCOPIES"RECEIVED:LTRENCI-LSIZE:.TITLE:ORSubmittal'.TMIActionPlan.RgqtNUREG0737LNUREG-0660NOTES!DOCKET0500031505000316RECIPIENTID<<CODE/NAMENRRORB1BC01COPIESLTTRENCL<<7RECIPIENT-ID'CODE/NAMECOPIES'LTTRENCLINTIERNAL:ELO/HDS3IE/DEPER/EPBNRRPAWLSON,NNRR/DLDIR10NRR/DL/ADSA17NRR/DSI/ADRS'27NRR/OSI/ASB.NRR/OSTDIR30RGN31*0~331~11.11111~111111111111"33111=104,11'IE/DEPERDIR33~IE/DEPER/IRBNRR/DHFS/DEPY29NRR/DL/ADL16NRR/OL/DRAB18NRR/OSI/AEBNRR/OSI/RABEXTERNAL:ACRSI.PDRNSIC1010'NPOiJ;STARNES0322NRC'PDR020511NTIS.1.11111<<TOTALNUMBEROF"COPIESREQUIRED:l<<TTR44ENCLQ3 tttlt'1l>>w(wc' 0.INDIANARMICHIGANELECTRICCOMPANYP.O.8OX1880WLINGGREENSTATIONNEWYORK,N.Y.10004March11,1983AEP:NRC:0761DonaldC.CookNuclearPlantUnitNos.1and2DocketNos.50-315and50-316LicenseNos.DPR-58andDPR-74INADEQUATECORECOOLINGINSTRUMENTATIONSYSTEM(GENERICLETTERNO.82-28)REQUESTFOREXTENSIONMr.HaroldR.Denton,DirectorOfficeofNuclearReactorRegulationU.S.NuclearRegulatoryCommissionWashington,D.C.20555

DearMr.Denton:

UponreceiptofGenericLetterNo.82-28,aninternalreviewwasestablished,inordertoprovidetherequestedadditionalinformationconcerningourInadequateCoreCooling(ICC)Instrumen-tationSystem'sconformance'withNUREG-0737,ItemII.F.2.Weare,however,presentlyunabletorespondtothisrequestintheformatoftheGenericLetter'sattachedchecklist.Theinabilitytocomplywiththe90-dayresponsetimearisesfromalackofavailableinformationconcerningthefinalizationofthereplacementin-corethermocouplesystem'sdesign.AEPSCiscurrentlynegotiatingwiththreevendorsforthecontracttoreplaceexistingin-corethermocouplesystem.Additionally,ongoingdiscussionsarebeingconductedwithWestinghouseregardi'ngtheReactorVesselLevelInstrumentationSystem's(RVLIS)calibrationdifficultiesandequipmentlocation.Accordingly,weherebyrequestanextensiontoJune15,1983,sothatwemayappropriatelyaddresstheconcernsofGenericLetterNo.82-28.Wewishtostatefortherecord,however,thattheWestinghousedifferentialpressuremonitoringsystem(RVLIS)isinstalled,intheDonaldC.CookNuclearPlanttoserveastherequiredreactorcoolantinventorytrackingsystem.AsstatedinGenericLetterNo.82-28,theNRChascompleteditsgenericreviewoftheRVLISanddeemeditacceptablefortrackingreactorcoolantsysteminventory.Thesubcoolingmarginmonitorsareinstalledandoperational.InformationregardingtheRVLISandthesubcoolingmarginmonitorshaso~483032800508303iilFanAOOCK050003isI'iPPDRJl

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Mr.HaroldR..onA.iRC:0761beenpreviouslysubmittedtotheNRCviavariouslettersassummarizedinAttachments1and2,ofthisletter.Weareintheprocessofconductingengineeringstudiesconcerningthein-corethermocouplesystemforUnitl.Itiscurrentlyanticipatedthattheinstallationofthisnewthermocouplesystemshouldcommenceduringthe1985refuelingoutage.Thisscheduleisbasedonananticipatedoneyearleadtimefortheequipment.FollowingUnit1'sinstallationaplanwillbedevelopedtoinstallanewthermocouplesysteminUnit2.Thisdocumenthasbeenpreparedfollowingcorporateprocedureswhichincorporateareasonablesetofcontrolstoinsureitsaccuracyandcompletenesspriortosignaturebytheundersigned.Verytrulyyours,/osR.F.HeringVicePresidentcc:JohnE.Dolan-ColumbusR.S.HunterM.P.AlexichR.W.JurgensenW.G.Smith,Jr.-BridgmanR.C.CallenG.CharnoffNRCResidentInspectoratCookPlant-Bridgman Attachment1toAEP:NRC:0761ThefollowingsubmittalshavebeentransmittedbyAEPorbyWestinghouseElectricCompany(W)totheNRCinsupportoftheRVLISdesign.'a)LetterNo.AEP:NRC:0398D,datedMarch311981Thisletterservedtotransmitaversionofthe"SummaryReport,WestinghouseReactorVesselLevelInstrumentationSystemforMonitoringInadequateCoreCooling(7300System),December,1980",whichisapplicabletotheDonaldC.CookNuclearPlant.(b)LetterNos.AEP:NRC:0398FandAEP:NRC:0398G,datedSetember171981andNovember20,1981respectivelyTheselettersrespondedtoMr.S.A.Varga'sletterofAugust8,1981whichrequestedadditionalinformationontheWestinghouseSummaryReportontheRVLIS.(c)SulementaryInformationSubmittalletterfromMr.E.P.Rahe(W)toMr.L.E.Phillips(NRC)NS-EPR-2579ofMarch19,1982.(d)'WestinhouseEvaluationofTestsMr.E.P.Rahe's(W)lettertoMr.L.E.Phillips(NRC)NS-EPR-2526ofDecember9,1981providedtheresultsoftestsS-UT-3,S-UT-6,S-UT-7,S-NC-2,S-NC-3,andS-NC-8,whichsupporttheevaluationoftheRVLISdesign.(e)WestinhouseEvaluationofTestsS-UT-8LetterfromMr.E.P.Rahe(W)toMr.L.E.Phillips(NRC),NS-EPR-2542ofJanuary13,1982.(f)WestinghouseEvaluat'ionofTestS-1B-1andFunctionalTestLetterfromMr.E.P.Rahe(QWtoMr.L.E.Phillips(NRC),SED-SA-0081ofJune28,1982.(g)ResponsetoReuesttoWOGforAdditionalInformationLetterfromMr.E.P.Rahe(W)toMr.DennisM.Crutchfield(NRC),NS-EPR-2597ofMay14,1982.

(h)RCSMi.deRangePressureInstrumentationrLetterfromMr.E.P.Rahe(W)toMr.R.C.Young(NRC),NS-EPR-2586ofApril21,1982.

Attachment2toAEP:NRC:0761ThcfollowingsubmittalshavebeentransmittedtotheNRCin-supportofthesubcoolingmarginmonitordesign..(a)LetterNo.AEP:NRC:0253datedOctober241979ThisletterservedtonotifytheNRCofourintentiontoinstallsubcoolingmarginmonitorsandofourinterimmethodofdeterminingsubcoolingmargin.(b)LetterNo.AEP:NRC:0253A,datedNovember26,1979ThisletterrespondedtoanNRCrequestforadditionalinformationonthesubcoolingmarginmonitorcontainedinMr.HaroldR.Denton'sletterofOctober30,1979.(c)LetterNo.AEP:NRC:0253B,datedDecember191979ThisletterprovidesadescriptionoftheplantparametersemployedtocalculatesubcoolingmarginariththeProdacplantcomputer,anddisplayoptionsavailable.(d)LetterNo.AEP:NRC:0334datedJanuary181980ThisletterdetailsourcompliancewithNUREG-0578Section2.1.3.b,"InstrumentationforInadequateCoreCooling".(e)LetterNo.AEP:NRC:0334B,datedMarch101980Thisletterprovidesadescriptionofthesubcoolingmarginmonitorinputprocessingemployedtocalculatethesubcoolingmargin.Thequalificationofthesubcoolingmarginmonitorcomponentsisalsoaddressed.(f)LetterNo.AEP:NRC:0346datedJanuary30,1980Thisletterprovidesthesubcoolingmargincriteriafortheterminationofsafetyinjection.TheNRCreviewdeterminedthatthesaturationmarginmonitorsmeettheshorttermlessonslearnedrequirementsforSection2.1.3.bofNUREG-0578.ThesummaryofthisreviewisincludedinaletterfromMr.A.SchwencertoMr.J.Dolan(AEP)datedMarch20,1980.

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