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

ACCELERATED DTBXBUTION DEMONSTIONSYSTEMdfsREGULATORY INFORMATION DISTRIBUTION SYSTEM(RIDS)ACCESSION NBR:9005310055 DOC.DATE:

90/05/22NOTARIZED:

NOFACIL:50-335 St.LuciePlant,Unit1,FloridaPower6LightCo.50-389St.LuciePlant,Unit2,FloridaPower&LightCo.AUTH.NAMEAUTHORAFFILIATION SAGER,D.A.

FloridaPower6LightCo.RECIP.NAME RECIPIENT AFFILIATION DocumentControlBranch(Document ControlDesk)

SUBJECT:

Provides10CFR50.62 implementation statusasof900515.DISTRIBUTION CODE:A055DCOPIESRECEIVED:LTR gENCLSIZE:TITLE:OR/Licensing Submittal:

SalemATWSEventsGL-83-8NOTES:DOCKET0500033505000389RECIPIENT IDCODE/NAME PD2-2LANORRIS,JINTERNAL:

ACRSNRR/DLPQ/LPEB10 NRR/DST/SICB 7EOC/LFMBEEXTERNAL:

LPDRNSICCOPIESLTTRENCL101166101110111111RECIPIENT IDCODE/NAME PD2-2PDNRR/DEST/ESB 8DNRR/DOEA/OGCB11 NRR/DST/SPLB 8DOGC/HDS2RES/DSIR/EIB NRCPDRCOPIESLTTRENCL331.11010101111NOTETOALL"RIDS"RECIPIENTS:

PLEASEHELPUSTOREDUCEWASTE!CONTACTTHEDOCUMENTCONTROLDESK,ROOMPl-37(EXT.20079)TOELIMINATE YOURNAMEFROMDISTRIBUTION LISTSFORDOCUMENTS YOUDON'TNEED!TOTALNUMBEROFCOPIESREQUIRED:

LTTR23ENCL17 P.O.Box14000, JunoBeach,FL33408-0420 Mm2219SOL-90-19010CFR50.62U.S.NuclearRegulatory Commission Attn:DocumentControlDeskWashington, D.C.20555Gentlemen:

Re:St.LucieUnitNos.1and2DocketNos.50-335and50-389AnticiatedTransients WithoutScramOnMarch1,1989,FloridaPower6LightCompany(FPL)metwiththeNRCtodiscusstheconceptual designoftheSt.'Lucie Units1and2plantmodifications tomeet10CFR50.62,>>Requirements forreduction ofriskfromanticipated transients withoutscram(ATWS)eventsforlight-water-cooled nuclearpowerplants."Inthatmeeting,theStaffrequested bi-monthly updatesonthemodifications implementation status.Attachedisthestatusofthe10CFR50.62modifications atSt.LucieUnits1and2asofMay15,1990.Shouldtherebeanyquestions, pleasecontactus.Verytrulyyours,D.A.SaVicePrs'ntSt.LuciePlantDAS/EJW/gpAttachment cc:StewartD.Ebneter,RegionalAdministrator, RegionII,USNRCSeniorResidentInspector, USNRC,St.LuciePlant900531005m 900~2PDRADOCK05000335PDCanFPLGroupcompanygc5$lpga ATTACHMENT 10CFR50'2IMPLEMENTATION STATUSASOFMAY15'990STLUCIEUNITS1AND2Thestatusofengineering activities forimplementation of10CFR50.62is:Unit22.Theengineering designofthemodulesandmodifications necessary fortheEngineered SafetyFeaturesActuation System(ESFAS)andAuxiliary Feedwater Actuation System(AFAS)portionoftheATWSsystemiscomplete.

ThePlantChange/Modification packagenecessary forinstalling theATWSsystemisonscheduleforissuancebyJune30,1990.Thestatusofprocurement activities forimplementation of10CFR50.62is:Eaton-Consolidated Controls(ECC):Unit2TheDiverseScramSystem(DSS)moduleprototype fabrication iscompleted.

On-,siteprototype testingisscheduled forlateMay1990.Hardwareprocurement isapproximately 90~completewithmodulefabrication scheduled tobeginJune1,1990.Combustion Engineering (CE):Unit2Fabrication hasbegunontheAFASMatrixRelayprintedcircuitboards.3~Installation andfinalsystemtestingofATWSmodifications atSt.LucieUnit1havebeensuccessfully completed.

FPLconsiders theSt.LucieUnit1ATWSsystemtobeoperational.

Modifications areonscheduleforATWSimplementation atSt.LucieUnit2duringtheupcomingcalendaryear1990refueling outage.