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 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. 05000335 50-389 St. Lucie Plant, Unit 2, Florida Power' Light Co. 05000389 AUTH. NAME AUTHOR AFFILIATION NOTES'OCKET SAGER,D.A.

RECIP.NAME

SUBJECT:

of Risk DISTRIBUTION CODE: A055D Florida Power 6 Light Co.

RECIPIENT AFFILIATION Forwards status Document Control Branch (Document Control Desk) of 10CFR50.62, "Requirements for Reduction From ATWS" mods at plant as of 900315.

COPIES RECEIVED:LTR  :. ENCL SIZE:

TITLE: OR/Licensing Submittal Salem ATWS Events GL-.83-28 RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL PD2-2 LA 1 0 PD2-2 PD 3 3 NORRIS,J 1 1 INTERNAL: ACRS 6 6 NRR/DEST/ESB 8D 1 1 NRR/DLPQ/LPEB10 1 0 NRR/DOEA/OGCB11 1 0 NRR/DST/SICB 7E 1 1 NRR/DST/SPLB 8D 1 0 NUDOCS-ABSTRACT 1 1 OC/LFM 1 0 OGC/HDS2 1 0 8~ILE 0 1 1 RES/DSIR/EIB 1 1 EXTERNAL LPDR .1 1 NRC PDR NSIC 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 ELIMINATEYOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!

TOTAL NUMBER OF COPIES REQUIRED: LTTR 24 ENCL 18

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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 r Vice P ident St. Lu Plant DAS/EJW/gp Attachment cc: Stewart D. Ebneter, Regional Administrator, Region Senior Resident Inspector, USNRC, St. Lucie Plant II, USNRC 9004iOOi97 900330 0~<000335

'RPDR ADOCK PDC an FPL Group company

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~ 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 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.

2 ~ 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 The load contactors have been received onsite.

3 ~ 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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