ML18033A499

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Forwards Safety Evaluation Supporting Util Plan for Controlling & Mitigating Effects of Igscc,Per Vol 3,Section III.7.0 of Facility Nuclear Performance Plan.Insp of Ref Welds Should Be Completed Prior to Restart
ML18033A499
Person / Time
Site: Browns Ferry 
Issue date: 12/30/1988
From: Black S
NRC OFFICE OF SPECIAL PROJECTS
To: Kingsley O
TENNESSEE VALLEY AUTHORITY
Shared Package
ML18033A500 List:
References
TAC-62263, NUDOCS 8901040208
Download: ML18033A499 (2)


Text

December 30, 1988

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'ocket No. 50-260 Mr. Oliver D. Kingsley, Jr.

Senior Vice President, Nuclear Power Tennessee Valley Authority 6N 38A Lookout Place 1101 Market Street Chattanooga, Tennessee 37402-2801

Dear Mr. Kingsley:

Distribution

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GPA/PA GPA/CA BFN Rdg. File

SUBJECT:

VOLUME 3, SECTION III.7.0 (INTERGRANULAR STRESS CORROSION CRACKING)

OF THE NUCLEAR PERFORMANCE PLAN -

BROHNS FERRY NUCLEAR PLANT, UNIT, 2 (TAC 62263)

Section III.7.0 (Intergrannular Stress Corrosion Cracking) of Volume 3 of the Browns Ferry Nuclear Performance Plan identified Tennessee Valley Authority's (TVA) plan for controlling and mitigating the effects of intergranular stress corrosion cracking

( IGSCC) for Br owns Ferry, Unit 2.

The staff has completed the evaluation of the proposed Browns Ferry IGSCC-program for controlling the occurrence of IGSCC at Browns Ferry, Unit 2.

The staff concludes that this program adequately addresses the important aspects of controlling the occurrence of known IGSCC at Browns Ferry, Unit 2.

The staff has pointed out by letter dated December 8, 1988 that TVA should complete inspection of certain induction heating stress improvement treated welds prior to restar t.

Completion of these inspections will demonstrate that there are no significant IGSCC flaws present in these welds.

Our Safety Evaluation supporting the above conclusions is enclosed.

If you have any questions concerning the above, please call the Browns Ferrv.

Project Manager, Gerald Gears, at 301-492-0767.

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Enclosure:

Safety Evaluation cc w/enclosure:

See next page Sincer ely, Original Signed by Suzanne Black, Assistant Director for Projects TVA Projects Division Office of Special Projects OFC

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