ML17223A593

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Forwards Status of 10CFR50.62, Requirements for Reduction of Risk from ATWS Mods at Plant as of 900315.Diverse Scram Sys Module Prototype Fabrication in Progress
ML17223A593
Person / Time
Site: Saint Lucie  NextEra Energy icon.png
Issue date: 03/30/1990
From: SAGER D A
FLORIDA POWER & LIGHT CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
L-90-120, NUDOCS 9004100197
Download: ML17223A593 (5)


Text

ACCELERATEDDIRBUTIONDEMONSTIONSYSTElVI*PREGULATORYINFORMATIONDISTRIBUTIONSYSTEM'(RIDS)ACCESSIONNBR:9004100197DOC.DATE:90/03/30NOTARIZED:NOFACIL:50-335St.LuciePlant,Unit1,FloridaPower6Light,Co.50-389St.LuciePlant,Unit2,FloridaPower'LightCo.AUTH.NAMEAUTHORAFFILIATIONSAGER,D.A.FloridaPower6LightCo.RECIP.NAMERECIPIENTAFFILIATIONDocumentControlBranch(DocumentControlDesk)

SUBJECT:

Forwardsstatusof10CFR50.62,"RequirementsforReductionofRiskFromATWS"modsatplantasof900315.DISTRIBUTIONCODE:A055DCOPIESRECEIVED:LTR:.ENCLSIZE:TITLE:OR/LicensingSubmittalSalemATWSEventsGL-.83-28NOTES'OCKET0500033505000389RECIPIENTIDCODE/NAMEPD2-2LANORRIS,JINTERNAL:ACRSNRR/DLPQ/LPEB10NRR/DST/SICB7ENUDOCS-ABSTRACTOGC/HDS2RES/DSIR/EIBEXTERNALLPDRNSICCOPIESLTTRENCL1011661011111011.1111RECIPIENTIDCODE/NAMEPD2-2PDNRR/DEST/ESB8DNRR/DOEA/OGCB11NRR/DST/SPLB8DOC/LFM8~ILE0NRCPDRCOPIESLTTRENCL331110101011NOTETOALL"RIDS"RECIPIENTS:PLEASEHELPUSTOREDUCEWASTEtCONTACTTHE.DOCUMENTCONTROLDESK,ROOMP1-37(EXT.20079)TOELIMINATEYOURNAMEFROMDISTRIBUTIONLISTSFORDOCUMENTSYOUDON'TNEED!TOTALNUMBEROFCOPIESREQUIRED:LTTR24ENCL18 s'>rcPjI4J"41l P.O.Box14000,JunoBeach,FL33408-0420MARCH301990L-90-12010CFR50.62U.S.NuclearRegulatoryCommissionAttn:DocumentControlDeskWashington,D.C.20555Gentlemen:Re:St.LucieUnitNos.1and2DocketNos.50-335and50-389AnticiatedTransientsWithoutScramOnMarch1,1989,FloridaPower&LightCompany(FPL)metwiththeNRCtodiscusstheconceptualdesignoftheSt.LucieUnits1and2plantmodificationstomeet10CFR50.62,>>Requirementsforreductionofriskfromanticipatedtransientswithoutscram(ATWS)eventsforlight-water-coolednuclearpowerplants."Inthatmeeting,theStaffrequestedbi-monthlyupdatesonthemodificationsimplementationstatus.Attachedisthestatusofthe10CFR50.62modificationsatSt.LucieUnits1and2asofMarch15,1990.Shouldtherebeanyquestions,pleasecontactus.Verytrulyyours,D.A.SaVicePSt.LuridentPlantDAS/EJW/gpAttachmentcc:StewartD.Ebneter,RegionalAdministrator,RegionII,USNRCSeniorResidentInspector,USNRC,St.LuciePlant9004iOOi97900330PDRADOCK0~<000335'RPDCanFPLGroupcompany w~t*a$~fATTACHMENT10CFR50'2IMPLEMENTATIONSTATUSASOFMARCH15'990STLUCIEUNITS1AND2Thestatusofengineeringactivitiesforimplementationof10CFR50.62is:Unit22~TheengineeringdesignoftheEngineeredSafetyFeaturesActuationSystem(ESFAS)andAuxiliaryFeedwaterActuationSystem(AFAS)portionoftheATWSmodificationiscontinuingandisapproximately50%complete.Thestatusofprocurementactivitiesforimplementationof10CFR50.62is:ConsolidatedControlsCorporation(CCC):Unit2ModuleengineeringfortheESFAScabinetportionoftheDiverseScramSystem(DSS)iscomplete.TheDSSmoduleprototypefabricationisinprogressandprototypetestingisscheduledformid-April.CombustionEngineering(CE):Unit2TheAFASMatrixRelayprintedcircuitboardsfortheAFASareintheengineeringphase.TheQualificationAnalysis,drawingandtechnicalmanualrevisionsaredueinmid-May.OtherProcurement:Unit23~Theloadcontactorshavebeenreceivedonsite.InstallationofATWSmodificationsatSt.LucieUnit1iscompleted.Finalsystemtestwillbeconductedpriortothecompletionofthecurrentrefuelingoutage.ModificationsareonscheduleforATWSmodificationsimplementationatSt.LucieUnit2duringtheupcomingcalendaryear1990refuelingoutage.

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