ML20148N228

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Review of Augmented Main Steam Isolation Valve Rept Has Determined That Midcycle Msliv Leak Testing Is No Longer Required
ML20148N228
Person / Time
Site: Cooper Entergy icon.png
Issue date: 11/01/1978
From: Ippolito T
Office of Nuclear Reactor Regulation
To: Pilant J
NEBRASKA PUBLIC POWER DISTRICT
Shared Package
ML20148N233 List:
References
TAC-06754, TAC-6754, NUDOCS 7811270041
Download: ML20148N228 (2)


Text

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sa ato uqi UNITED STATES f l p 't . .T4 NUCLEAR REGULATORY COMMISSION

). j WASHINGTON, D. C. 20555 g.c November 1,1978 k[...../ .

Docket No. 50-298 Mr. J. M. Pilant, Director Liceiising & Quality Assurance Nebraska Public Power District P. O. Box 499 Columbus, Nebrat(a 68601

Dear Mr. Pilant:

s By letters dated October 30,1975, June 2,1977, February 10, 1977 and September 11, 1978, you reported the results of the augmented main steam isolation va've (MSIV) leakage surveillance program at Cooper Nuclear Station (CNS). The augmented surveillance program and reporting requirements are described in Supplement No.1 to the CNS Safety Evaluation Report, dated July 16, 1973, and in our letter to you dated July 27, 1973.

We have evaluated the information you have provided and* concluded,

- based on the test results to date, that midcycle MSLIV leak testing is no longer required. A copy of our Safety Evaluation is enclosed.

Sincerely, i

Th hief Operating Reactors Branch #3 Division of Operating Reactors

Enclosure:

Safety Evaluation cc w/ enclosures See page 2 V8112700'h PW E c.

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Nebraska Public Power District -

2-1 .

CC i Mr. G. D. Watson, General Counsel i Nebraska Public Power District i P. O. Box 499

Columbus, Nebraska 68601 ,

Mr. Arthur C. Gehr, Attorney .

. Snell & Wilmer

3100 Valley Center p Phoenix, Arizona 85073 .

Cooper Nuclear Station ATTN: Mr. L. Lessor

. Station Superintendent P. O. Box 98 l Brownville, Nebraska 68321 .

I, Auburn Public Library 118 - 15th Street Auburn, Nebraska 68305 i

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