ML17223A674

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Forwards Info Re Status of 10CFR50.62 Mods to Meet ATWS Requirements as of 900515.Plant Change/Mod Package Necessary for Installing ATWS Will Be Issued by 900630.Hardware Procurement for Diverse Scram Sys Approx 90% Complete
ML17223A674
Person / Time
Site: Saint Lucie  NextEra Energy icon.png
Issue date: 05/22/1990
From: SAGER D A
FLORIDA POWER & LIGHT CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
L-90-190, NUDOCS 9005310055
Download: ML17223A674 (3)


Text

ACCELERATEDDTBXBUTIONDEMONSTIONSYSTEMdfsREGULATORYINFORMATIONDISTRIBUTIONSYSTEM(RIDS)ACCESSIONNBR:9005310055DOC.DATE:90/05/22NOTARIZED:NOFACIL:50-335St.LuciePlant,Unit1,FloridaPower6LightCo.50-389St.LuciePlant,Unit2,FloridaPower&LightCo.AUTH.NAMEAUTHORAFFILIATIONSAGER,D.A.FloridaPower6LightCo.RECIP.NAMERECIPIENTAFFILIATIONDocumentControlBranch(DocumentControlDesk)

SUBJECT:

Provides10CFR50.62implementationstatusasof900515.DISTRIBUTIONCODE:A055DCOPIESRECEIVED:LTRgENCLSIZE:TITLE:OR/LicensingSubmittal:SalemATWSEventsGL-83-8NOTES:DOCKET0500033505000389RECIPIENTIDCODE/NAMEPD2-2LANORRIS,JINTERNAL:ACRSNRR/DLPQ/LPEB10NRR/DST/SICB7EOC/LFMBEEXTERNAL:LPDRNSICCOPIESLTTRENCL101166101110111111RECIPIENTIDCODE/NAMEPD2-2PDNRR/DEST/ESB8DNRR/DOEA/OGCB11NRR/DST/SPLB8DOGC/HDS2RES/DSIR/EIBNRCPDRCOPIESLTTRENCL331.11010101111NOTETOALL"RIDS"RECIPIENTS:PLEASEHELPUSTOREDUCEWASTE!CONTACTTHEDOCUMENTCONTROLDESK,ROOMPl-37(EXT.20079)TOELIMINATEYOURNAMEFROMDISTRIBUTIONLISTSFORDOCUMENTSYOUDON'TNEED!TOTALNUMBEROFCOPIESREQUIRED:LTTR23ENCL17 P.O.Box14000,JunoBeach,FL33408-0420Mm2219SOL-90-19010CFR50.62U.S.NuclearRegulatoryCommissionAttn:DocumentControlDeskWashington,D.C.20555Gentlemen:Re:St.LucieUnitNos.1and2DocketNos.50-335and50-389AnticiatedTransientsWithoutScramOnMarch1,1989,FloridaPower6LightCompany(FPL)metwiththeNRCtodiscusstheconceptualdesignoftheSt.'LucieUnits1and2plantmodificationstomeet10CFR50.62,>>Requirementsforreductionofriskfromanticipatedtransientswithoutscram(ATWS)eventsforlight-water-coolednuclearpowerplants."Inthatmeeting,theStaffrequestedbi-monthlyupdatesonthemodificationsimplementationstatus.Attachedisthestatusofthe10CFR50.62modificationsatSt.LucieUnits1and2asofMay15,1990.Shouldtherebeanyquestions,pleasecontactus.Verytrulyyours,D.A.SaVicePrs'ntSt.LuciePlantDAS/EJW/gpAttachmentcc:StewartD.Ebneter,RegionalAdministrator,RegionII,USNRCSeniorResidentInspector,USNRC,St.LuciePlant900531005m900~2PDRADOCK05000335PDCanFPLGroupcompanygc5$lpga ATTACHMENT10CFR50'2IMPLEMENTATIONSTATUSASOFMAY15'990STLUCIEUNITS1AND2Thestatusofengineeringactivitiesforimplementationof10CFR50.62is:Unit22.TheengineeringdesignofthemodulesandmodificationsnecessaryfortheEngineeredSafetyFeaturesActuationSystem(ESFAS)andAuxiliaryFeedwaterActuationSystem(AFAS)portionoftheATWSsystemiscomplete.ThePlantChange/ModificationpackagenecessaryforinstallingtheATWSsystemisonscheduleforissuancebyJune30,1990.Thestatusofprocurementactivitiesforimplementationof10CFR50.62is:Eaton-ConsolidatedControls(ECC):Unit2TheDiverseScramSystem(DSS)moduleprototypefabricationiscompleted.On-,siteprototypetestingisscheduledforlateMay1990.Hardwareprocurementisapproximately90~completewithmodulefabricationscheduledtobeginJune1,1990.CombustionEngineering(CE):Unit2FabricationhasbegunontheAFASMatrixRelayprintedcircuitboards.3~InstallationandfinalsystemtestingofATWSmodificationsatSt.LucieUnit1havebeensuccessfullycompleted.FPLconsiderstheSt.LucieUnit1ATWSsystemtobeoperational.ModificationsareonscheduleforATWSimplementationatSt.LucieUnit2duringtheupcomingcalendaryear1990refuelingoutage.