ML17328A878

Requests Addl Time to Prepare plant-specific Evaluation of Surge Line in Order to Complete Ongoing Work,Perform Reviews & Prepare Submittal,In Response to NRC Bulletin 88-011. Evaluation Will Be Submitted by 910401

ML17328A878
Person / Time
Site:	Cook
Issue date:	01/30/1991
From:	ALEXICH M P INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	MURLEY T E NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
AEP:NRC:1086C, IEB-88-011, IEB-88-11, NUDOCS 9102050240
Download: ML17328A878 (6)

Text

ACCELERATEDDISTRIBUTIONDEMONSTRATIONSYSTEMREGULATORYINFORMATIONDISTRIBUTIONSYSTEM(RIDS)DOCKET0500031505000316

SUBJECT:

Requestsadditimetoprepareplant-specificevaluationofsurgelineinordertocompleteongoingwork,performreviews&preparesubmittal,inresponsetoNRCBulletin88-011.Evaluationwillbesubmittedby910401.gDISTRIBUTIONCODE:IE30DCOPIESRECEIVED:LTRENCL~SIZE:,ENOTES:ACCESSIONNBR:9102050240DOC.DATE:91/01/30NOTARIZED:NOFACIL:50-315DonaldC.CookNuclearPowerPlant,Unit1,Indiana&50-316DonaldC.CookNuclearPowerPlant,Unit2,Indiana&AUTH.NAMEAUTHORAFFILIATIONALEXICH,M.P.IndianaMichiganPowerCo.(formerlyIndiana&MichiganEleRECIP.NAMERECIPIENTAFFILIATIONHURLEY,T.E.DocumentControlBranch(DocumentControlDesk)RECIPIENTIDCODE/NAMEPD3-1LACOLBURN,T.INTERNAL:AEOD/DOAAEOD/ROABNRRHOU,SNRR/DET/EMEB7ENRR/DOEA/OGCB11NRR/DS3~-REGfVKLE0.2RGN~FIEE01EXTERNAL:NRCPDRCOPIESLTTRENCLRECIPIENTIDCODE/NAMEPD3-1PDAEOD/DSP/TPABNRRCHAN,TNRRKUO,PNRR/DOEA/OEAB11NRR/DREP/PEPB9DNRR/PMAS/ILRB12RES/DSIR/EIBNSICCOPIESLTTRENCLNOTETOALL"RIDS"RECIPIENTS:PLEASEHELPUSTOREDUCEWASTE!CONTACTTHEDOCUMENTCONTROLDESK,ROOii!Pl-37(EXT.20079)TOELIMINATEYOURNAMEFROMDISTRIBUTIONLISTSFORDOCUMENTSYOUDON'TNEED!TOTALNUMBEROFCOPIESREQUIRED:LTTR20ENCL

indianaMichiganPowerCompanyP,O.Box16631Columbus,OH43216INDIANAMICHlGAMPOWERDonaldC.CookNuclearPlantUnits1and2DocketNos.50-315and50-316LicenseNos.DPR-58andDPR-74JUSTIFICATIONFORCONTINUEDOPERATIONREGARDINGPRESSURIZERSURGELINESTRATIFICATIONAEP:NRC:1086CU.S.NuclearRegulatoryCommissionAttn:DocumentControlDeskWashington,D.C.20555Attn:T.E.MurleyJanuary30,1991

References:

1)B.J.'Coslow,"WestinghouseOwnersGroupBoundingEvaluationforPressurizerSurgeLineThermalStratification,"WCAP-12277(WestinghouseProprietaryClass2),WCAP-12278(Non-ProprietaryVersion),'une1989.2)B.J.Coslow,"WestinghouseOwnersGroupPressurizerSurgeLineThermalStratificationGenericDetailedAnalysisProgramMUHP-1091SummaryReport,"WCAP-12639(WestinghouseProprietaryClass2),WCAP-12640(Non-ProprietaryVersion),June1990.3)SERfromNRConWCAP-12277asperWOGletterOG-90-56,September4,1990.InordertoaddresstheissueofsurgelinethermalstratificationandrespondtoNRCBulletin88-11,theWestinghouseOwnersGroup(WOG)implementedaprogramtogenericallyevaluatetheeffectsofstratificationonsurgelineintegrity(Reference1).ThisboundingevaluationcomparedWOGplantstothoseforwhichdetailedplant-specificanalysishadbeenperformed.SinceReference1providedlessthanfulldesignlifeverification,agenericjustificationforcontinuedoperation(JCO)was,developedforusebyeachoftheWOGplants.ThisJCOwasreviewedandacceptedbytheNRC(Ref.3).Subsequenttotheboundingevaluationandgeneric9102050240910130PDRADOCK05000315QPDR 4II' Dr.T;E.Murley-2-AEP:NRC:10860JCO,theWOGperformedageneric,detailedanalysisongroupingsofplantsbasedontheirsimilarityofresponsetothermalstratification,(Reference2).Theresultsofthisgeneric,detailedanalysiscouldnot.showacceptablefatiguelifefortheCookNuclearPlantunits.Therefore,aplant-specificJCOwasdevelopedbyWestinghousewhichjustifiedcontinuedpoweroperationoftheCookNuclearPlantforanaddftional10heatupandcooldowncycles.TheWOGdetailedanalysis(Reference2)wascompletedinJulyof1990andwasreviewedbytheNRCinNovemberof1990.ByNovember1990,wehadalreadyiniti'atedaprogramtocompletetheplant-specificevaluationofthesurgeline,requiredbyNRCBulletin88-11tobesubmittedbyJanuary31,1991,AlthoughthisprogramwasinitiatedpriortoNovember1990,completioncouldnotbeplanneduntilNRCfeedbackontheWOGdetailedanalysis(Reference2)wasobtained,BasedontheNRC'sNovemberreviewofReference2,wecannowcompletetheprogram.Inordertodo-so,however,werequestadditionaltimetoallowforcompletionofon-goingwork,reviewbyappropriateparties,andpreparationandsubmittalofthereports.Accordingly,werequestthatthedateforourplant-specificsubmittalbeextendedtoApril1,1991.ThisletterhasbeenpreparedfollowingCorporateprocedureswhichincorporateareasonablesetofcontrolstoensureitsaccuracyandcompletenesspriortosignaturebytheundersigned.Sincerely,M.P.AlexichVicePresidentldpcc:D.H.Williams,Jr.A.A.Blind-BridgmanJ.R.PadgettG.CharnoffA.B.Davis-RegionIIINRCResidentInspector-Bridgman,NFEMSectionChief