ML20085H108

Interim Deficiency Rept Re Laminations Discovered in Main Steam Line Piping Tee.Initially Reported on 740909.GE Evaluating Problem.Final Rept Will Be Submitted by 741108

ML20085H108
Person / Time
Site:	Browns Ferry
Issue date:	10/07/1974
From:	Gilleland J TENNESSEE VALLEY AUTHORITY
To:	Knuth D US ATOMIC ENERGY COMMISSION (AEC)
Shared Package
ML20085H106	List: ML20085H108
References
10CFR-050.55E, 10CFR-50.55E, NUDOCS 8308300177
Download: ML20085H108 (1)

Text

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O O M> '

TENNESSEE VALLEY AUTHOAITY CHATTANOOGA, TENNESSEE -

37401 October 7, 1974 40 giggg PARTN E A S HIP Mr. Donald F. Knuth, Director Directorate of Regulatory Operations  ?

U.S. Atomic Energy Commission '

Washington, DC 20545 *

Dear Mr. Knuth:

BROWNS FERRY NUCLEAR PLANT UNIT 3 - POTENTIAL DEFICIENCY ON LAMINATIONS IN MAIN STEAM LINE PIPING TEE i

Initial report of the subject potential deficiency was made on September 9,1974. In compliance with paragraph 50.55(e) of 10 CFR Part 50, this is submitted as an interim report. l On September 6, 1974, during veld preparation on the subject '

tee, an indication of a lamination was found in the veld prep area. A complete ultrasonic examination of the tee was per- =

formed September 7 and 8. j This equipment comes under General Electric's scope of supply and General Electric is evaluating the subject deficiency. '

We hope to have GE's final evaluation and submit the final .

report to you by November 8,1974.

Very truly yours,

' J. E. Gilleland -

Assistant to the Manager of Power S

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