05000389/LER-1998-005-01, Forwards LER 98-005-01,describing How New MOV Methodology Caused Past PORV Block Valve Operation Problems.Revised LER Changes Safety Significance for Inoperable PORV Block Valves Based on Subsequent SS Analysis,Per LER 98-00

Forwards LER 98-005-01,describing How New MOV Methodology Caused Past PORV Block Valve Operation Problems.Revised LER Changes Safety Significance for Inoperable PORV Block Valves Based on Subsequent SS Analysis,Per LER 98-007-00

ML17229A928
Person / Time
Site:	Saint Lucie
Issue date:	11/25/1998
From:	Stall J FLORIDA POWER & LIGHT CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML17229A929	List: 05000389/LER-1998-005, :on 980807,discovered That New MOV Methodology Caused Past PORV Block Valve Operability Problem.Caused by Inadequacies in Original Vendor MOV Methodology.Planned Valve Mods Will Be Implemented During Cycle 11 1998 Outage 05000389/LER-1998-005-01, Forwards LER 98-005-01,describing How New MOV Methodology Caused Past PORV Block Valve Operation Problems.Revised LER Changes Safety Significance for Inoperable PORV Block Valves Based on Subsequent SS Analysis,Per LER 98-00
References
L-98-284, NUDOCS 9812020142
Download: ML17229A928 (3)

LER-1998-005, Forwards LER 98-005-01,describing How New MOV Methodology Caused Past PORV Block Valve Operation Problems.Revised LER Changes Safety Significance for Inoperable PORV Block Valves Based on Subsequent SS Analysis,Per LER 98-007-00

Event date:
Report date:
3891998005R01 - NRC Website

text

~

CATEGORY 1 ~

k REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)

ACCESSION NBR:9812020142 DOC.DATE: 98/11/25 NOTARIZED: NO FACIL:50-389 St. Lucie Plant, Unit 2, Florida Power

& Light Co'.

AUTH.'NAME'.

AUTHOR AFFILIATION STALL,J.A.

Florida Power

& Light Co.

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

DOCKET 05000389 SUBJECT: Forwards LER 98-005-01 describing how new MOV methodology caused past PORV block valve operation problems. Revised LER changes safety significance for inoperable PORV block valves based on subsecpxent SS analysis,per LER 98-007-00.

DISTRIBUTION CODE: IE22T COPIES RECEIVED:LTR I

ENCL

)

SIZE:

+

TITLE: 50.73/50.9 Licensee Event Report (LER), Incident Rpt, etc.

NOTES:

E RECIPIENT ID CODE/NAME PD2-3 PD INTERNAL: ACRS AEOD/SPD/RRAB NRR/DE/ECGB NRR/DE/EMEB NRR/DRCH/HOHB NRR/DRPM/PECB RES/DET/EIB EXTERNAL: L ST LOBBY WARD NOAC POORE,W.

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1 RECIPIENT ID CODE/NAME GLEAVES,W AEOD S ~g E ~NT NRR/$)RCH/HICB NRR/DRCH/HQMB NRR/DSSA/SPLB RGN2 'ILE 01 LITCO BRYCE,J H NOAC QUEENER, DS NUDOCS FULL TXT COPIES LTTR ENCL 1

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D NOTE TO ALL "RIDS" RECZPZENTS:

PLEASE HELP US TO REDUCE WASTE. TO HAVE YOUR NAME OR ORGANIZATION REMOVED FROM PZSTRZBUTZON LISTS OR REDUCE THE NUMBER OF COPZES RECEIVED BY YOU OR YOUR ORGANIZATION, CONTACT TH/DOCUMENT CONTROI DESK (DCD)

ON EXTENSION 415-2083 FULL,TEXT CONVERSION REQUIRED TOTAL NUMBER OF COPIES REQUIRED:

LTTR 23 ENCL 23

Florida Power & Light Company, 6351 S. Ocean Drive, Jensen Beach. FL 34957 APL'ovember 25, 1998 L-98-284 10 CFR 5 50.73 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D. C. 20555 Re:

St. Lucie Unit 2 Docket No. 50-389 Reportable Event: 1998-005-01 DateofEvent:

August7, 1998 New MOVMethodology Caused Past PORV Block Valve 0 erabilit Problem The attached revision to Licensee Event Report 1998-005 is being submitted pursuant to the requirements of 10 CFR g 50.73 to provide notification ofthe subject event.

This LER revision changes the safety significance for inoperable PORV block valves based on subsequent safe shutdown analysis (SSA) re-validation effort findings documented in LER 50-389/1998-007-00, "Fire Protection SSA Re-Verification Identified Potential PORV and 2A EDG I Cable Failure Modes."

Very truly yours, J. A. Stall Vice President St. Lucie Nuclear Plant JAS/EJW/KWF Attachment cc:

Regional Administrator, USNRC Region II Senior Resident Inspector, USNRC, St. Lucie Nuclear Plant

'ir8i2020i42 981.f25 PDR ADOCK 05000389 8

PDR en FPL Group company