ML17213B306

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Advises That First Reactor Vessel Matl Irradiation Surveillance Specimen Will Be Removed in Conjunction W/ Current Extended Outage to Remove Reactor Vessel Thermal Shield,Tentatively Scheduled for Completion in Dec 1984
ML17213B306
Person / Time
Site: Saint Lucie NextEra Energy icon.png
Issue date: 04/25/1983
From: UHRIG R E
FLORIDA POWER & LIGHT CO.
To: CLARK R A
Office of Nuclear Reactor Regulation
References
L-83-257, NUDOCS 8304280075
Download: ML17213B306 (6)


Text

C~'EGULAYINFORMATION DISTRIBUTIG

'YSTEM(RIDS)AOCESSION NBR:8304280075 DOCSEDATE:83/04/25NOTARIZED:

NOFACIL:50-335 St,LuciePlantgUniiti~FloridaPowerKLightCo>AUTH~NAMEAUTHORAFFILIATION UHRIGiR,E,FloridaPower8LightCo~.RECIP~NAMERECIPIENT AFFILIATION CLARKgR~ADOperating ReactorsBranch3

SUBJECT:

Advisesthatfirstreactorvesselmatlirradiation surveillance specimenwillberemovedinconjunction w/currentextendedoutage,to removereactorvessel'hermal shielditentatively scheduled forcompletion inDec1984'ISTRIBUTION CODE:A001SCOPIESRECEIVED:LTR 3ENCL.$SIZE:.TITLE:ORSubmittal; GeneralDistribution NOTES:DOCKET05000335RECIPIENT IDCODE/NAME NRRORB3BC01COPIESf.TTRENCL77RECIPIENT IDCODE/NAME COPIESLT'TRENCLINTERNALS ELD/HDS2NRR/DLDIRNRR/DETBEXTERNAL:

ACRSNRCPDRNTIS040902101111116<<61111NRR/DE/MTEB NRR/DL/DRAB NRR/DSI/RAG RGN2LPDRNSIC030511101111111'TOTALNUMBEROFCOPIESREQUIRED'TTR 25ENCL23 0WWI(IIII>>Ii'Ii'Ihrlt'I~'3IXIIIihr'wi)'IIWh'rIIII(IIIl'i]fII,Ilr'll'If,II,IIIIi17ll,ilrhe'!iWf0Jg")IIII1r'WII!I"IIgIIIIII,ikr)II,'frIr(JI'l>>IISi('r)IIiaf'Ih't>>hr'II'hriIIIIIw(III>>

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rhlIII(4VillwifIIITfrwwm~=WeeWae(re~OI.IIlr)f",IIIIIIhf'hT!IIl1(IfIIf('IIILIl(t~<TTilIfjlIIIIij'II~'.rIIIII(IllWII'"IJNliI!'Wh'irir'fikII'I)1tII'I(IlI,q)rlI,iIIII'iltr(,rII FLORIDAPOWER&LIGHTCOMPANYApril25,1983L-83-257OfficeofNuclearReactorRegulation Attention:

Mr.RobertA.Clark,ChiefOperating ReactorsBranchg3DivisionofLicensing U.S.NuclearRegulatory Ccmmission Washington, D.C.20555

DearMr.Clark:

Re:St..LucieUnit1DocketNo.50-335ReactorVesselSurveillance SpecimenInconjunction withthecurrentextendedoutagetoremovethereactorvesselthermalshield,wehavedecidedtorenovethefirstreactorvesselmaterialirradiation surveillance specimenfranSt.LucieUnit1.Thisremovalis,inourjudgment, inaccordance withtheSt.LucieUnit1Technical Specifications andAppendixHto10CFR50.Technical Specification 4.4.9.1.c requiresthatthefirstspecimenberemovedaftereightcalendaryears.Astheoperating licenseforSt.LucieUnit1wasissuedonMarch1,1976,thespecimenisduetoberemovedonMarch1,1984,orapproximately sevenandahalfmonthsfromtheanticipated endofthecurrentrefueling outage.Thefollowing refueling outageistentatively scheduled tobefinishedaroundtheendof'ecember1984.Thiswouldbeapproximately tenmonthspasttheeight-year date.Thisfutureoutagemaybeslippedfurtherdepending oncyclelengthadjustments andtheoverhaulschedules ofotherunits.SectionII.eof10CFR50AppendixH,allowsmodification ofwithdrawal schedules tocoincidewiththerefueling outagemostcloselyapproaching thewithdrawal schedule.

Becausetheendofthecurrentoutagemostcloselyapproaches thewithdrawal

schedule, wewillremovethespecimenduringthisoutage.OurNSSSvendorconcurswiththisaction.Removingthespecimenduringtheoutagewillallowustoevaluatethespecimentodetermine amaterialirradiation baselineforoperation ofSt.LucieUnit1withoutthethermalshield.Wearealsoplanningtoreplacethespecimenwithtemperature anddosimetry instruments toobtainfluencedataduringtheupcaningcycle.T8304280075 830425I1PDRADOCK05000335PPDR,IiPEOPLESERVINGPEOPLE 4.We7E

,OfficeofNucleReactorRegulation Attention:

Mr.RobertA.ClarkPage2Shouldyouoryourstaffhaveanyquestions onthissubject,pleasecontactus.Verytrulyyours,RoberE.UhrigVicePresident AdvancedSystem5Technology REU/PLP/js Attachments cc:Mr.JamesP.O'Reilly,RegionIIHaroldF.Reis,Esquire 4I'L