ML17223A593

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
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

ACCELERATED DIRBUTION DEMONSTION SYSTElVI*P REGULATORY INFORMATION DISTRIBUTION SYSTEM'(RIDS)ACCESSION NBR:9004100197 DOC.DATE: 90/03/30 NOTARIZED:

NO FACIL:50-335 St.Lucie Plant, Unit 1, Florida Power 6 Light, Co.50-389 St.Lucie Plant, Unit 2, Florida Power'Light Co.AUTH.NAME AUTHOR AFFILIATION SAGER,D.A.

Florida Power 6 Light Co.RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)

SUBJECT:

Forwards status of 10CFR50.62,"Requirements for Reduction of Risk From ATWS" mods at plant as of 900315.DISTRIBUTION CODE: A055D COPIES RECEIVED:LTR

.ENCL SIZE: TITLE: OR/Licensing Submittal Salem ATWS Events GL-.83-28 NOTES'OCKET 05000335 05000389 RECIPIENT ID CODE/NAME PD2-2 LA NORRIS,J INTERNAL: ACRS NRR/DLPQ/LPEB10 NRR/DST/SICB 7E NUDOCS-ABSTRACT OGC/HDS2 RES/DSIR/EIB EXTERNAL LPDR NSIC COPIES LTTR ENCL 1 0 1 1 6 6 1 0 1 1 1 1 1 0 1 1.1 1 1 1 RECIPIENT ID CODE/NAME PD2-2 PD NRR/DEST/ESB 8D NRR/DOEA/OGCB11 NRR/DST/SPLB 8D OC/LFM 8~ILE 0 NRC PDR COPIES LTTR ENCL 3 3 1 1 1 0 1 0 1 0 1 1 NOTE TO ALL"RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTEt CONTACT THE.DOCUMENT CONTROL DESK, ROOM P 1-37 (EXT.20079)TO ELIMINATE YOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!TOTAL NUMBER OF COPIES REQUIRED: LTTR 24 ENCL 18 s'>rc Pj I 4 J" 4 1 l P.O.Box 14000, Juno Beach, FL 33408-0420 MARCH 3 0 1990 L-90-120 10 CFR 50.62 U.S.Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.C.20555 Gentlemen:

Re: St.Lucie Unit Nos.1 and 2 Docket Nos.50-335 and 50-389 Antici ated Transients Without Scram On March 1, 1989, Florida Power&Light Company (FPL)met with the NRC to discuss the conceptual design of the St.Lucie Units 1 and 2 plant modifications to meet 10 CFR 50.62,>>Requirements for reduction of risk from anticipated transients without scram (ATWS)events for light-water-cooled nuclear power plants." In that meeting, the Staff requested bi-monthly updates on the modifications implementation status.Attached is the status of the 10 CFR 50.62 modifications at St.Lucie Units 1 and 2 as of March 15, 1990.Should there be any questions, please contact us.Very truly yours, D.A.Sa Vice P St.Lu r ident Plant DAS/EJW/gp Attachment cc: Stewart D.Ebneter, Regional Administrator, Region II, USNRC Senior Resident Inspector, USNRC, St.Lucie Plant 9004iOOi97 900330 PDR ADOCK 0~<000335'R PDC an FPL Group company w~t*a$~f ATTACHMENT 10 CFR 50'2 IMPLEMENTATION STATUS AS OF MARCH 15'990 ST LUCIE UNITS 1 AND 2 The status of engineering activities for implementation of 10 CFR 50.62 is: Unit 2 2~The engineering design of the Engineered Safety Features Actuation System (ESFAS)and Auxiliary Feedwater Actuation System (AFAS)portion of the ATWS modification is continuing and is approximately 50%complete.The status of procurement activities for implementation of 10 CFR 50.62 is: Consolidated Controls Corporation (CCC): Unit 2 Module engineering for the ESFAS cabinet portion of the Diverse Scram System (DSS)is complete.The DSS module prototype fabrication is in progress and prototype testing is scheduled for mid-April.

Combustion Engineering (CE): Unit 2 The AFAS Matrix Relay printed circuit boards for the AFAS are in the engineering phase.The Qualification Analysis, drawing and technical manual revisions are due in mid-May.Other Procurement:

Unit 2 3~The load contactors have been received onsite.Installation of ATWS modifications at St.Lucie Unit 1 is completed.

Final system test will be conducted prior to the completion of the current refueling outage.Modifications are on schedule for ATWS modifications implementation at St.Lucie Unit 2 during the upcoming calendar year 1990 refueling outage.

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