ML17320A756

Application to Amend License DPR-58,revising Tech Spec 4.5.2.f to Increase Total Flow Limit to Four Branch Lines from 470 Gpm to 500 Gpm on Boron Injection Sys (Single Centrifugal Charging Pump)

ML17320A756
Person / Time
Site:	Cook
Issue date:	10/03/1983
From:	ALEXICH M P INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	DENTON H R, VARGA S A NRC, Office of Nuclear Reactor Regulation
Shared Package
ML17320A757	List: ML17320A756 ML17320A760
References
AEP:NRC:0849, AEP:NRC:849, NUDOCS 8310060006
Download: ML17320A756 (8)

Text

REGULATORNFORMATIONDISTRIBUTIONTEM(RIDS)ACCESSIONNBR:8310060006DOC~DATE:83/10/03NOTARI'ZED:NODOCKETFACIL:50~315DonaldO,CookNuclearPowerPlantiUnit1iIndiana805000315AUTH,NAMEAUTHORAFFILIATIONALEXICHgM~P,Indiana8MichiganElectricCo.RECIP.'NAMERECIPIENTAFFILIATIONDENTONiH.R..OfficeofNuclearReactorRegulationrDirectorVARGAiS,A,NRCNoDetailedAffiliationGiven

SUBJECT:

ApplicationtoamendLicense.DPR-58irevisingTech'Spec4.52.ftoincreasetotalflowlimittofourbranchlinesfrom070gpmto500gpmonboroninJectionsys(singlecentrifugalchargingpump).DISTRIBUTIONCODE:A001SCOPIESRECEIYED:LTRENCL,j.SIZE:,TITLE:RayMilleriInc:RelatedCorrespondence(SSINS-5340)NOTES:RECIPIENTIDCODE/NAMENRRORB1BC01INTERNAL:ELD/HDS3NRR/DLDIRTBREGFILE04EXTERNAL:ACRS09NRCPDR02NTISCOPIESLTTRENCL7710111111661111RECIPIENTIDCODE/NAMENRR/DE/MTEBNRR/DL/ORABNRR/DSI/RABRGN3LPDRNSIC0305COPIESLT'TRENCL11101111111ITOTALNUMBEROFCOPIESREQUIRED:LTTR25ENCL23

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DearMr.Denton:

ThisletterrequestsachangetotheDonaldC.CookNuclearPlantUnitNo.1TechnicalSpecification(T/S)SurveillanceRequirement4.5.2.f.toincreasethetotalflowlimittothefourbranchlinesfrom470gpmto500gpmontheBoronInjectionSyst:em(singlecentrifugalchargingpump).T/S4.5.2.fcurrentlyrequiresperformanceof"...aflowbalance,testduringshutdownfollowingcompletionofmodificationstotheEmergencyCoreCoolingSystem(ECCS)subsystemthatalterthesubsystemflowcharacteristics."Thefootnote(*)tothisT/ScurrentlyrequiresTheactualflowineach(BoronXnjection)BXlinemaydeviatefromthenominalsolongas~..thetotalflowtothefourbranchlinesdoesnotexceed470gpm."TheT/SBases(B3/4.5.2)states,inpart,"Surveillancerequirementsfor...flowbalancetestingprovideassurancethat,properECCSflowswillbemaintainedintheeventofaLOCALMaintenanceofproperflowresistanceandpressuredropinthepipingsystemtoeachinjectionpointisnecessaryto:(1)preventtotalpumpflowfromexceedingrunoutconditionswhenthesystemisinitsminimumresistanceconfiguration,(2)providethepropersplitbetweeninjectionpointsinaccordancewiththeassumptionsusedintheECCS-LOCAanalyses,and(3)provideanacceptableleveloftotalECCSflowtoallinjectionpointsequaltoorabovethatassumedintheECCS-LOCAanalyses.",'j)Q3fpOb000b8~~DOS'~<~.,",.-PDRADPCg08000315

~~P~~hII">,)f11',I~~>IF')PI[,rll~Ia.~~:~~~1III~=~PI=>II>>'rf>E),tI'~Irr)fI,)I>~")E,f.>I)',)I>r'..~IE)f~,r,'))I~Erlr>F~~~'>1')I>X'f)I~>I>)~'~'>>f,E'P*',',,h)rltrth')fgJ'Fh)').'">'.>>'lf)fr~~ft.,"ti>"').'1')'frtI'ft-'>Et.p..'f'1f'.I'.)If)1I'>Elft>1)ff>~h'I'Irr>IE)Et>I'>)>")'<E(f)'.)X1)'t'I""I!)))f'>,tj)g".f))rtf>'lf>hrj>jjj>,"I'>>>h)rf,'Irf>II)lt~Fr,>"It'fI)t>P1)I)I',~tt'X'h>>x(',f>,Ifhf'I'>g.~,~~";))'t.">>,.'.i)'.f"','f>'))t>t)h>r',>~>)r>1~'.,"',>.f>>>If,Itf',,'l>>").I'>Cf.)itfr,>))"E>f Mr.HaroldR.tonAEP:NRC:0849OnOctober1,1983,whileperformingtheabovesurveillancerequirementsforflowbalancetestingonthecentrifugalchargingpumps,wefoundthatoneofthetwopumps(i.e.,theEastpump)exceededthemaximumflowrequirement.Duringthetest,thesystemwassetuptoprovidetheproperflowsplitbetweeninjectionpoints,andbothpumpshadanacceptableleveloftotalflowtosatisfytheminimumflowrequirements.FurtheradjustmentofthethrottlevalvesinthepipingconfigurationtoallowtheEastpumptomeetthemaximumflowrequirementwillinfringeupontheminimumflowrequirementfortheWestpump~Inordertoalleviatethissituation,itwouldthereforerequirephysicalreworkandretestingoftheEastpumptoloweritsperformancetotheextentthatmaximumflowcamewithinT/S.SuchreworkandretestingisestimatedtodelaytheUnit1startupbytwoweeksorlonger.Therefore,onthebasisoftheneedforpowerandtheplantbeingsubjectedtoanunnecessarilylongshutdown,werequestatechnicalspecificationchangetoallowustooperateinour"astestedcondition".TheactualtechnicalspecificationchangerequestisincludedasAttachment,1tothisletter.ThebjsisforthatchangeisdiscussedinAttachment,2.Basedonourreview,wehaveconcludedthatthischangewouldnotresultinanincreasetotheprobabilityorconsequencesofapreviously-analysedaccident,doesnot,reduceasafetymargin,andisclearlywithinallacceptablecriteriawithrespecttothecomponent.Sinceourconclusionsareconsistentwiththatpublishedundertheexamplescitedonpage14870ofVol.48,No.67oftheFederalRegister,itisthereforeourbeliefthatourproposedchangewillnotconstituteSignificantHazardsConsiderationsasdefinedin10CFR50.92.ThisproposedchangetoTechnicalSpecificationhasbeenreviewedandapprovedbythePlantNuclearSafetyReviewCommitteeandwillbereviewedbytheNuclearSafetyandDesignReviewCommitteeatitsnextmeeting.Asrequiredby10CFR50.91(b)(1),acopyofthisapplicationforalicenseamendmentisbeingtransmittedtotheappropriateofficialoftheStateofMichigan.AEPSCinterprets10CFR170.22asrequiringthataClassIIIAmendmentFeebepaidforthechange.Acheckintheamountof$4000willbetransmittedtoyouinafutureletter.

I")J,.P')IDr-F~)A0DA',~)'t'.)ltjVDIIPX4;Di'IhIr,lI,F)FrAD~'AIr)A4')1II1~gpFV~Qg)-1",rDAD1=.)I.)'D'IA)411~~tg1"YF4~IDFV.AD4~FF.SX)'lI-F)I*eF'II)-D,4~hrttlIAI')kIr)ejhlVII"',"',fjl(!e.IIlD~-I-WDfDDXJ'P~llIIIV)'",FfI Mr.HaroldR.tonAEP:NRC:0849Duetothisletterbeingwrittenonshortnotice,ourCorporateprocedureshavenotbeenfollowedduringitspreparation.WewillreviewtheletteraccordingtoourCorporateproceduresandwillinformyouifanymodificationisrequired.VerytrulyyoursM..AlichVicePresidentMPA/pbcc:JohnE.DolanW.G.Smith,Jr.-BridgmanR.C.CallenG.CharnoffE.R.Swanson,NRCResidentInspector-Bridgman J8