ML17301A106

Application for Amend to License NPF-16,revising Tech Specs to Extend Subgroup Test Interval from 6 to 18 Months

ML17301A106
Person / Time
Site:	Saint Lucie
Issue date:	05/22/1984
From:	WILLIAMS J W FLORIDA POWER & LIGHT CO.
To:	EISENHUT D G Office of Nuclear Reactor Regulation
Shared Package
ML17215A409	List: ML17215A408 ML17215A410 ML17215A411 ML17301A106
References
L-84-133, NUDOCS 8405310309
Download: ML17301A106 (9)

Text

,~REGULATORY<<FORMATIONDISTRIBUTIONSYEM(RIDS)ACCESSIONNBR:8405310309DOC.DATE:84/05/22NOTARIZED:YESFACIL:50-389St,LuciePlantiUnit2iFloridaPower8LightCo,AUTH~NAMEAUTHORAFFILIATIONl)ILLIAMSiJ.N,FloridaPower8LightCo,RECIP~NAMERECIPIENTAFFILIATIONEISENHUT~D.G.DivisionofLicensingDOCKET05000389

SUBJECT:

ApplicationforamendtoLicenseNPF16irevisingTee)Specstoextendsubgrouptestintervalfrom6to18months,DISTRIBUTIONCODE;A001SCOPIESRECEIVED:LTRENCLg~SIE:L,g/tlgTITLE:ORSubmittal:GeneralDistributionNOTES:RECIPIENTIDCODE/NAMENRRORB3BC01COPIESLTTRENCL7.7RECIPIENTIDCODE/NAMECOPIESLTTRENCLINTERNAL:ELD/HDS2NRR/DLDIRREGFILEEXTERNAL.:ACRSNRCPDRNTIS04090210111111661'11NRR/DE/MTEBNRR/DL/DRABNRR/DSI/RABRGN2LPDRNSIC0305111011111111TOTALNUMBEROFCOPIESREQUIRED:LTTR25ENCL23 0Clif%fit'i*q~rR'itlt'Nli)I FLORIDAPOWER&LIGHTCOMPANYMay22,1984L-84-133OfficeofNuclearReactorRegulationAttention:Mr.DarrellG.Eisenhut,DirectorDivisionofL1cens1ngU.S.NuclearRegulatoryCommissionWashington,D.C.20555

DearMr.Eisenhut:

Re:St.LucieUnit2DocketNo.50-389ProposedLicenseAmendmentEmergencySafetyFeaturesActuationSstemInstrumentation-SurveillanceReuirementsInaccordancew1th10CFR50.90,FloridaPower5LightCompanysubmitsherewiththrees1gnedoriginalsandfortycopiesofarequesttoamendAppendixAofFacilityOperatingLicenseNPF-16.ThisAmendmentissubmittedtoextendthesubgrouptest1ntervalfromsixto18months.TheSafetyEvaluationaccompanyingthisrequestdemonstratesthattheavailabilityofatypicalactuat1onchannel(SIAS)is1nsensitivetothechpngein'hetestintetval(0.03$changeinavailabiity).Inaddition,theevaluationofthechangedtestintervaldemonstratesonlyachangeintheavailabilityoftheAuxiliaryFeedwaterActuat1onSystem(AFAS)by0.02$.TheproposedAmendmentisdescribedbelowandshownontheaccompany1ngTechnicalSpecif1cationpages.Paes343-22and343-23Thesurveillancerequirementsonsubgrouprel@testinghavebeenchangedfromsemi-annualtoeveryrefueling(eighteenmonths).Inaccordancewith10CFR50.92,wehavedeterminedthattheproposedTechn1calSpecificationAmendmentinvolvesnosignificanthazardsconsiderationsinthat1tdoesnot:I)10CFR50.92cIInvolveas1gn1ficant1ncrease1ntheprobabilityorconsequencesofanaccidentpreviouslyevaluatedsincethesafetyevaluationdemonstratesthattheextensionofthetestintervaldoesnotreducetheavailabilityoftheactuationchannelinanysignificantamount(0.03%changeinavailabilityforESFASand0.02',changeforAFAS).ThereforetheoperationandavailahilityoftheEmergencySafetyFeaturesActuationSystem(ESFAS)-,Instrumentationremainsthesameasconsideredinallsafetyanalyses.a,~j~lc"""~',,3'EOPLE~SERVINGPEOPLEr~~+mh~yjrrurm~>Ii~Isrg~v'~ghragr~hyEW',nj' 1~I OfficeofNuclearReactorRegulationAttent1on:Mr.DarrellG.E1senhut,DirectorPage22)10CFR50.92c2Createthepossibil1tyofanewordifferentk1ndofaccidentfromanyaccidentpreviouslyevaluateds1ncetherearenodesignchangesproposedinthisAmendment,andsincetheoperationandavailabilityoftheESFASremainsunchanged.2)10CFR50.92c3InvolveasignificantreductioninamarginofsafetyinthattheavailabilityoftheESFASactuationchannelisinsensitivetothechangeinthetestinterval.The0.0%and0.025changeinavailabilityofthechanneldoesnot1nvolveanysignificantreduction1namarginofsafety.In'addition,theproposedAmendmentmeetsthe'followingexamplesofAmendmentsthatareconsiderednotlikelytoinvolvesignificanthazardsconsiderationsaslistedintheFederalRegister(Vol.48,No.67):Examleiv:Areliefgrantedupondemonstrationofacceptableoperat1onfromanoperatingrestrictionthatwas1mposedbecauseacceptableoperationwasnotyetdemonstrated.Thisassumesthattheoperatingrestrictionandthecriteriatobeappl1edtoarequestforreliefhavebeenestablishedinapriorreviewandthatitisjustifiedinasatisfactorywaythatthecriteriahavebeenmet.TheproposedAmendmentjustifiestherelieffromtheESFASsubgrouprel~testingintervalpreviouslyapprovedintheTechnicalSpecifications.Theanalysisdemonstratesthattheproposedchangesresultedinvirtuallynochangeintheavailabilityoftheactuationchannel.TheanalysiswasperformedusingstandardacceptablemethodologyasdescribedinNUREG/CR-2300(PRAProceduresGuides)andIEEE-STD352-1975(GuideforGeneralPrinciplesofAnalysisofNuclearPowerGeneratingStationProtectionSystems).Exeslevi:Achangewhicheitherm~result1nsomeincreasetotheprobab1lityorconsequencesofapreviously-analyzedaccidentorm@reduce1nsomewayasafetymargin,butwheretheresultsofthechangeareclearlywithinallacceptablecriteriawithrespecttothesystemorcomponentspecifiedintheStandardReviewPlan:forexample,achangeresultingfromtheapplicat1onofasmallrefinementofapreviouslyusedcalculationalmodelordesignmethod.TheproposedAmendmentwouldnotresultinreduct1oninthesafetymargin.TheavailabilityoftheESFASchannelsareinsensitivetothechangeinthetestintcryal.TheproposedAmendmenthasbeenreviewedbytheSt.LucieFacilityReviewGroupandtheFloridaPower5LightCompanyNuclearReviewBoard.Inaccordancewith10CFR50.91(b)(l),acopyoftheproposedAmendmentisbe1ngforwardedtotheStateDesigneefortheStateofFlorida.

OfficeofNuclearReactorRegulationAttention:Mr.DarrellG.Eisenhut,DirectorPage3TheproposedAmendmenthasbeendeterminedtobeaClassIIIAmendmentinaccordancewith10CFR170.22,andacheckfor$4,000.00willfollowshortly.Verytrulyyours,iGroupVicePresidentNuclearEnergyJWW/JEM/jsAttachmentcc:J.P.O'ReillyRegionalAdministrator,RegionIIU.S.NuclearRegulatoryCommission101MariettaStreet,N.W.,Suite2900Atlanta,GA30303HaroldF.Reis,EsquireLyleJerrett,Ph.D.,DirectorOfficeofRadiationControlDept.Health8RehabilitativeServices1317WinewoodBoulevardTallahassee,FL32301PNS-L1-84-177

'STATEOFFLORIDACOUNTYOFDADESS~C.0.Woody,beingfirstdulysworn,deposesandsays:ThatheisVicePresidentNuclearOperationsofFloridaPower5LightCompany,thelicenseeherein;Thathehasexecutedtheforegoingdocument;thatthestatementsmadeinthisdocumentaretrueandcorrecttothebestofhisknowledge,information,andbelief,andthatheisauthorizedtoexecutethedocumentonbehalfofsaidLicensee.C.O.WySubscribedandsworntobeforemethis8f~.1988.C9NOTARYPUBLIC,inandfortheCountyof'-Dpde,',StateofFlorida.950TARYPUBLICSTATEOFFLORIDA='YCOY4ISSIOHEXP.FEB14,1988'OROEO-THRUGEUERA!.IRS.URO.My,coITIhissionexpires:

e,l~/F(J4p)i,