ML17223A674

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
Issue date:	05/22/1990
From:	Sager D FLORIDA POWER & LIGHT CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
L-90-190, NUDOCS 9005310055
Download: ML17223A674 (3)

Text

ACCELERATED D TBXBUTION DEMONS TION SYSTEM d

fs REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)

ACCESSION NBR:9005310055 DOC.DATE: 90/05/22 NOTARIZED: NO DOCKET 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 SAGER,D.A. Florida Power 6 Light Co.

RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)

SUBJECT:

Provides 10CFR50.62 implementation status as of 900515.

DISTRIBUTION CODE: A055D COPIES RECEIVED:LTR TITLE: OR/Licensing Submittal: Salem ATWS g ENCL Events GL 8 SIZE:

NOTES:

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 OC/LFMB 1 0 OGC/HDS2 1 0 E 1 1 RES/DSIR/EIB 1 1 EXTERNAL: LPDR 1 1 NRC PDR 1 1 NSIC 1 1 NOTE TO ALL "RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTE! CONTACT THE DOCUMENT CONTROL DESK, ROOM Pl-37 (EXT. 20079) TO ELIMINATEYOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!

TOTAL NUMBER OF COPIES REQUIRED: LTTR 23 ENCL 17

P.O. Box14000, Juno Beach, FL 33408-0420 Mm 22 19SO L-90-190 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 6 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 May 15, 1990.

Should there be any questions, please contact us.

Very truly yours, D. A. Sa Vice Pr St. Lucie Plant s'nt DAS/EJW/gp Attachment cc: Stewart D. Ebneter, Regional Administrator, Region II, USNRC Senior Resident Inspector, USNRC, St. Lucie Plant 900531005m 900~2 PDR ADOCK 05000335 PDC an FPL Group company gc5$

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ATTACHMENT 10 CFR 50 '2 IMPLEMENTATION STATUS AS OF MAY 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 modules and modifications necessary for the Engineered Safety Features Actuation System (ESFAS) and Auxiliary Feedwater Actuation System (AFAS) portion of the ATWS system is complete. The Plant Change/Modification package necessary for installing the ATWS system is on schedule for issuance by June 30, 1990.

2. The status of procurement activities for implementation of 10 CFR 50.62 is:

Eaton-Consolidated Controls (ECC):

Unit 2 The Diverse Scram System (DSS) module prototype fabrication is completed. On-, site prototype testing is scheduled for late May 1990.

Hardware procurement is approximately 90~ complete with module fabrication scheduled to begin June 1, 1990.

Combustion Engineering (CE):

Unit 2 Fabrication has begun on the AFAS Matrix Relay printed circuit boards.

3 ~ Installation and final system testing of ATWS modifications at St. Lucie Unit 1 have been successfully completed. FPL considers the St. Lucie Unit 1 ATWS system to be operational.

Modifications are on schedule for ATWS implementation at St.

Lucie Unit 2 during the upcoming calendar year 1990 refueling outage.