ML19329B111

Interim Deficiency Rept Re Reactor Coolant Pump Suction Field Weld Linearly Disposed Indications.Welding & Repairs Awaiting Completion of Investigation

ML19329B111
Person / Time
Site:	Davis Besse
Issue date:	05/02/1974
From:	Roe L TOLEDO EDISON CO.
To:
References
NUDOCS 8001300694
Download: ML19329B111 (1)

Text

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man zss-san Docket No. 50-346 Mr. Donald F. Knuth, Director Directorate of Regulatory Operations Office of Regulation U. S. Atomic Energy Commission Washington, D.C. 20545

Dear Mr. Knuth:

This letter is submitted as an Interim Report regarding mactor coolant pump suction field weld linearly disposed indications at the Davis-Besse Nuclear Power Station as reported to the Directorate of Regulatory Operations Region III by my letter of April 2,1974.

The study as to the cause of the referenced discontinuities is now underway using a weld mock-up of the field conditions. Upon completion of this study, a definitive report will be submitted to your office in accord with 10 CFR Part 50.55.

No further welding on the reactor coolant pump suctions is being conducted; repairs are being withheld until the investigation is complete and satisfactory resolution determined.

Yours very truly, l

bio ee' t cc:

J. G. Keppler, Regional Director Directorate of Regulatory Operations Region III

.-2 THE TCLECO EDISCN COMPANY EDISON PLAZA 300 MADISCN AVENUE TOLECO. CHIO 43652 80013 00 (f 9' p