ML17332A766

Application for Amends to Licenses DPR-58 & DPR-74.Amends Would Incorporate Cycle & Burnup Dependent Peaking Factor Penalty

ML17332A766
Person / Time
Site:	Cook
Issue date:	05/25/1995
From:	FITZPATRICK E INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML17332A767	List: ML17332A766 ML17332A768
References
AEP:NRC:1071T, NUDOCS 9505310313
Download: ML17332A766 (11)

Text

~PRIGRITYl~CCELERATED RIDSPl<OCI'.SSIiG)

REGULATORY INFORMATION DISTRIBUTION SYSTEM(RIDS)SACCESSION NBR:9505310313 DOC.DATE:95/05/25NOTARIZED:

YESDOCKETFACIL:50-315 DonaldC.CookNuclearPowerPlant,Unit1,IndianaM0500031550-316DonaldC.CookNuclearPowerPlant,Unit2,IndianaM05000316AUTH.NAME~AUTHORAFFILIATXON FITZPATRICK,E.

XndianaMichiganPowerCo.(formerly Indiana&MichiganElepRECIP.NAME RECIPIENT AFFILIATION DocumentControlBranch(Document ControlDesk)

SUBJECT:

Application foramendstolicensesDPR-58&DPR-74.Amends wouldincorporate cycle&burnupdependent peakingfactorpenalty.DISTRIBUTION CODE:AOOIDCOPIESRECEIVED:LTR jENCL2SIZE:&+/TITLE:ORSubmittal:

GeneralDistribution NOTES:0RECIPIENT XDCODE/NAME PD3-1LA7HICKMAN,JXNTE'ENTE01*NRR/DSSA/SRXB OGC/HDS2EXTERNAL:

NOACCOPIESLTTRENCL111111111110RECIPIENT IDCODE/NAME PD3-1PDNRR/DE/EMCB NRR/DSSA/SPLB NUDOCS-ABSTRACT NRCPDRCOPIESLTTRENCL1111111111D0UNNOTETOALL"RIDS"RECIPIENTS:

PLEASEIHELPUSTOREDUCEiVKSTE!CONTACTTIIE DOCL'ifEY'I'CONTROL DESK,ROOMPI.37(EXT.564.0083)TOELIXIRl.PATEYOURNAifLITROifDIS'I'RIB U'I'IONLIS'I'SI'ORDOCI.'%lEN'I'SYOI'ON"I'ITl'.D!TOTALNUMBEROFCOPIESREQUIRED:

LTTR12ENCL11 0

IndianaMichiganPowerCompanyP.O.Box16631Columbus, OH43216May25,1995AEP;NRC:1071T DocketNos.:50-31550-316U.S.NuclearRegulatory Commission ATTN:DocumentControlDeskWashington, D.C,20555Gentlemen:

DonaldC.CookNuclearPlantUnits1and2TECHNICAL SPECIFICATION 3.2.6CHANGEFqPENALTY,FpsONALLOWABLE POWERLEVELTOBEBURNUPDEPENDENT ANDSPECIFYTHEVALUEINTHECOREOPERATION LIMITREPORTThisletteranditsattachments constitute anapplication foramendment ofthetechnical specifications (T/Ss)forDonaldC.CookNuclearPlantUnits1and2.Specifically, weproposetomodifytheT/Sstoincorporate acycleandburnupdependent peakingfactorpenalty(Fp).SincethevalueofFpwilltypically changeeachfuelcycle,weproposetospecifythevalueofFpintheCoreOperating LimitsReport(COLR).Yourstaff'ssafetyevaluation inNovember1993ofWCAP-10216-P, Rev.1,"Relaxation ofConstantAxialOffsetControl-F<Surveillance Technical Specification,"

foundtheproposedrevisiontotheFosurveillance acceptable.

Ourproposedchangessatisfytherequirements statedinthesafetyevaluation bypenalizing Fointheallowable powerlevelT/S(3.2.6).Attachment 1providesadetaileddescription oftheproposedchanges,justification forthechanges,andourdetermination ofnosignificant hazardsconsideration performed pursuantto10CFR50,92.Attachment 2containstheexistingT/Spagesmarkedtoreflecttheproposedchanges.Attachment 3containstheproposedrevisedT/Spages.Attachment 4containsanexampleofhowtheproposedchangewouldberepresented intheCOLR.

fI U.S.NuclearRegulatory Commission Page2AEP:NRC:1071T Webelievethattheproposedchangeswillnotresultin(1)asignificant changeinthetypesofanyeffluentthatmaybereleasedoffsite,or(2)asignificant increaseinindividual orcumulative occupational radiation exposure.

TheproposedchangeshavebeenreviewedbythePlantNuclearSafetyReviewCommittee andtheNuclearSafetyandDesignReviewCommittee.

Incompliance withtherequirements of10CFR50.91(b)(l),

copiesofthisletteranditsattachments havebeentransmitted totheMichiganPublicServiceCommission andtotheMichiganDepartment ofPublicHealth.Sincerely, p~'.E.Fitzpatrick

~VicePresident SWORNTOANDSUBSCRIBED BEFOREMETHIS~~4DAYOF1995NotaryPublicehAttachments CC:A.A.BlindG.CharnoffJ.B.MartinNFEMSectionChiefNRCResidentInspector

-BridgmanJ.R.Padgett

'lI'Isaystry~~rlJ~1 ATTACHMENT 1TOAEP:NRC:1071T JUSTIFICATION AND10CFR50.92ANALYSISFORCHANGESTOTHEDONALDC.COOKNUCLEARPLANTUNITS1AND2TECHNICAL SPECIFICATIONS Attachment 1toAEP:NRC:1071T Page1DESCIPTIONOFCHANGESJ1.Units1and2,technical specification (T/S)3.2.6:WhereFzissetequalto1.02,modifytostatethatFpisaburnupdependent penaltyspecified intheCoreOperating LimitsReport(COLR).2.Units1and2,T/S6.9.1.9.2.c:

Updatereference toWCAP-10216-P, June1983,toWCAP-10216-P-A, Revision1A,February1994.3.Units1and2,COLR,Section2.8.3:Specifytheburnupdependent valuesofF>insteadofreferring tothevalueinT/S3.2.6(seeAttachment 4).REASONANDJUSTIFICATION FORCHANGESTheF<andallowable powerlevel(APL)T/Ssurveillances arerequiredevery31effective fullpowerdays(EFPDs).Totakeintoaccountthepossibility thatF<mayincreasebetweenfluxmaps,provisions areprovidedintheT/Sstoaccommodate suchoccurrences.

TheT/SsrequirethatF<(Z)/K(Z) becomparedtothepreviousfluxmap,andifitisfoundtoincrease, thenadditional actionmustbetaken.Eithera2percentpenaltyisappliedtoF~,ornopenaltyisapplied,butFomeasurements mustbetakenevery7EFPDsuntiltwosuccessive fluxmapsindicatethatF<(Z)/K(Z) isnotincreasing.

Westinghouse ElectricCorporation (Westinghouse) hasdiscovered caseswherepredicted F<increases morethan2percent,causingthe2percentpenaltytobenon-conservative.

Thesecasesaregenerally atbeginning ofcycle(BOC)burnupsandtheeffectstaperoffbeforereachingthepointofleastamountofF<margin.SincetheT/Ssonlyallowfora2percentpenaltytobeapplied,weeklyF<measurements havetobetakenduringtheBOCtoensurethatT/Ssurveillances aresatisfied.

Westinghouse revisedWCAP-10216-P-A, toaddresspredicted F<increases ofmorethan2percent,whichwasacceptedintheNRCsafetyevaluation datedNovember26,1993.TherevisiontotheWCAPspecifies twooptionsforincorporating changesintheT/Sstoaccommodate Fzofgreaterthan2percent.TheoptionsaretomakeFzburnupdependent andmoveitinCOLR,ortoaddapenaltytotheV(Z)function.

Wehavechosentoincorporate theoptionwhichspeci.fies useofaburnupdependent Fpthatwillbespecified intheCOLR.Theburnupdependent FpT/Schangespresented inWCAP-10216-P-A, Rev.1A,addressapplication ofthepenaltyintheFoT/S.CookNuclearPlantT/SsutilizeFpasitisappliedtoF<intheallowable powerlevel(APL)T/Ss.SincetheAPLcalculation isdependent onthevalueofF>,theprotection againstanincreasing F<isidentical tothatintherecommended T/Schangesspecified inWCAP-10216-P-A, Rev.1A.

~~a Page2Incorporating aburnupdependent F<penaltyintheCOLRwouldallowapplication ofthelargerpenalty,whennecessary, tomaintaina31EFPDsurveillance schedule.

Therefore, theweeklyF<measurements wouldnotberequiredtosatisfytheT/Ssurveillance requirements.

10CFR50.92EVALUATION Per10CFR50.92,aproposedamendment.

willnotinvolveasignificant hazardsconsideration iftheproposedamendment doesnot:(1)involveasignificant increaseintheprobability orconsequences of'"anaccidentpreviously evaluated, (2)createthepossibility ofanewordifferent kindofaccidentfromanyaccidentpreviously evaluated, or(3)involveasignificant reduction inamarginofsafety.Criterion 1Theproposedchangeswillnotinvolveasignificant increaseintheprobability ofanaccidentpreviously evaluated becausethechangeswillnotresultinachangetoanyoftheprocessvariables thatmightinitiateanaccident.

Therearenophysicalchangestotheplantassociated withthisT/Schange.Theconsequences ofanaccidentpreviously evaluated willnotbeincreased becausethechangesincreasethepenaltyappliedtoF<whenitismeasuredtobeincreasing.

F<andallowable powerlevel(APL)T/Ssurveillance requirements arenotbeingchanged.Furthermore, allowingacycleandburnupdependent F<penaltytobelocatedintheCOLRwasacceptedbytheNRCin,asafetyevaluation onWCAP-10216-P, Rev.1.CRITERION 2Theproposedchangeswillnotcreatethepossibility ofanewordifferent kindofaccidentfromanyaccidentpreviously evaluated becausethechangeswillinvolvenophysicalchangestotheplantnoranychangesinplantoperations.

Furthermore, theF<andAPLT/Ssurveillance requirements arenotbeingchanged,andthechangetotheF<penaltyisconservative.

CRITERION 3Theproposedamendment willnotinvolveasignificant reduction inamarginofsafety.Whentheincreased F<penaltyisapplied,itreducestheallowable powerlevel,thusincreasing themarginofsafety.

ATTACHMENT 2TOAEP:NRC:1071T EXISTINGTECHNICAL SPECIFICATION PAGESMARKEDTOREFLECTPROPOSEDCHANGES