ML18036A979

Revises Commitment Date to Resolve Svc Water Sys Water Hammer Concern,Identified in Edsfi Rept 50-344/90-200 from 920131 to 0430

ML18036A979
Person / Time
Site:	Trojan File:Portland General Electric icon.png
Issue date:	01/30/1992
From:	Cross J PORTLAND GENERAL ELECTRIC CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9202030188
Download: ML18036A979 (6)

Text

QCCEI.ERAT DOCUIVIENT DIST VTION SYSTEM REGULAT INFORMATION DISTRIBUTIO i'STEM (RIDS)

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i ACCESSION NBR:9302030188 DOC.DATE: 93/01/29 NOTARIZED: NO DOCKET CIL:50-259 Browns Ferry Nuclear Power Station, Unit 1, Tennessee 05000259

'50-260 Browns Ferry Nuclear Power Station, Unit 2, Tennessee 05000260 50-296 Browns Ferry Nuclear Power Station, Unit 3, Tennessee 05000296 AUTH. NAME AUTHOR AFFILIATION ZERINGUE,O.J. Tennessee Valley Authority RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)

SUBJECT:

Advises that commitments to address violations noted in ESFSI Repts 50-259/92-15,50-260/92-15 a 50-296/92-15 completed. Incorrectly installed 50 ampere breaker 6 cracked thermal overloads replaced a walkdowns completed.

DISTRIBUTION CODE: AOOID COPIES RECEIVED:LTR ENCL + SIZE:

TITLE: OR Submittal: General Distribution NOTES:

RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL SANDERS,M. HEBDON,F ROSS,T. WILLIAMSPJ.

i INTERNAL: ACRS NRR/DOEA/OTSB11 NRR/DST/SICB8H7 NUDOCS-ABSTRACT OGC/HDS3 EXTERNAL: NRC PDR NRR/DET/ESGB NRR/DST/SELB 7E NRR/DST/SRXB 8E OC/LFMB NSIC 01 NOTE TO ALL"RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTEI CONTACT THE DOCUMENT CONTROL DESK, ROOM Pl-37 (EXT. 504-2065) TO ELIMINATEYOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!

TOTAL NUMBER OF COPIES REQUIRED: LTTR 23 ENCL QI

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Tennessee Valley Authority, Post Office Box 2000Decatur, Alabama 35609-2000 O. J. "Ike" Zeringue Vice President. Browns Ferry Nuclear Plant JgN 29 f993 U.S. Nuclear Regulatory Commission ATTN: Document Control'Desk Washington, D.C. 20555 Gentlemen:

In the Matter of , )- . Docket Nos. 50-259 Tennessee Valley Authority , ) 50-260 50-296 1

BROWNS FERRY NUCLEAR PLANT (BFN) NOTIFICATION OF ELECTRICAL DISTRIBUTION SYSTEM FUNCTION INSPECTION (EDSFI) FINDINGS COMPLETION

References:

1. Letter from 0. J. Zeringue to NRC dated July 20, 1992, "NRC Inspection Report 50-259, 260, 296/92-15 Reply to Notice of Violation (NOV) and Electrical Distribution System Function Inspection (EDSFI) Team Findings"

2. Letter from A. F. Gibson to TVA dated June 18, 1992, "Notice of Violation, NRC Inspection Report Nos.

50-259/92-15, 50-260/92-15, and 50-296/92-15" This letter provides notification that TVA's corrective actions to the EDSFI findings have been completed for BFN Unit 2. Reference 1 provided the list of commitments made in response to the EDSFI team findings documented in Reference 2.

These commitments have been addressed and actions completed. TVA has replaced the incorrectly installed 50 ampere breaker and cracked thermal overloads (TOLs) and completed an inspection of TOLs in safety-related systems. Walkdowns of the plant AK type breakers have been completed and controls are in place to ensure proper breaker changeout. Electrical distribution calculations were revised. Appropriate procedures concerning the ground fault meter have also been revised. Plant setpoin't, and scaling documents were developed for electrical surveillance calibrations. In addition, TVA has identified or removed the spare vendor wirings, including Units 1 and 3, that were identified during the EDSFI inspection.

9302030i88'I930f29 PDR 'ADOC~ 05000259 8 PDR

U.S. Nuclear Regulatory Commission JAR 89 1993 If you have any questions regarding this notification, please telephone G. D. Pierce at (205) 729-7566.

Sincerely, P ~(4 CC>> NRC Resident Inspecto .

Browns Ferry Nuclear Plant Route 12, Box 637 Athens, Alabama 35611 Mr. Thierry M. Ross, Project Manager U.S. Nuclear Regulatory Commission One White Flint, North 11555 Rockville Pike Rockville, Maryland 20852 Mr. B. A. Wilson, Project Chief U.S. Nuclear Regulatory Commission Region II 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323

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