ML20005B567

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Responds to NUREG-0737,TMI Action Plan Item II.D.1 Re Safety Relief Valve Adequacy.Tested Valves Satisfy Acceptance Criteria for Operability.Adequacy W/Both Two & Three Stage Topworks Demonstrated
ML20005B567
Person / Time
Site: Browns Ferry  Tennessee Valley Authority icon.png
Issue date: 07/01/1981
From: Mills L
TENNESSEE VALLEY AUTHORITY
To: Harold Denton
Office of Nuclear Reactor Regulation
References
RTR-NUREG-0737, RTR-NUREG-737, TASK-2.D.1, TASK-TM NUDOCS 8107080377
Download: ML20005B567 (1)


Text

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TENNESSEE VALLEY AUTHORITY CH ATTANOOGA. TENNESSEE 374ot 400 Chestnut Street Tower II

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July 1, 1981 C

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Mr. Harold R. Denton, Director w

Office of Nuclear Reactor Regulation 4 0 f

U.S. Nuclear Regulatory Commission d >>-

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Washington, DC 20555 ig -

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(

Dear Mr. Denton:

In the Matter of the

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Docket Nos. 50-259 lj" Tennessee Valley Authority )

50-260 50-296 In response to NUREG-0737, Item II.D.1, this letter provides the results of a preliminary review of the generic BWR Safety / Relief Valve (S/RV) test program results to confirm the adequacy of the SiriV's for Browns Ferry Nuclear Plant. The S/RV test conditions are defined in the description submitted with the September 17, 1980 letter from D. B.

Waters to R. H. Vollmer. The preliminary data from the S/RV test program will be submitted on July 1, 1981, on behalf of the BWR Owners' Group in a letter from T. J. Dente to D. G. Eisenhut.

At the present time, the three-stage topworks have been replaced and Browns Ferry employs the two-stage Target Rock S/RV, Model No. 7567F.

However, we are still approved to use the three-stage topworks (Model No. 7467F) if the need arises. Based on a preliminary review of the generic BWR S/RV test program results, we believe that the tested valves satisfy the acceptance criteria for operability and that the operational adequacy of the Browns Ferry S/RV's (with both the two-and three-stage topworks) has been demonstrated.

Very truly yours, TENNESSEE VALLEY AUTHORITY L. i. Mills, Manager Nuclear Regulation and Safety Subscribed and sworn t before me this

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day of 1981.

G us4tAJ iothary Public U

My Commission Expires / -hb Q

4 \\\\b 1c107000377 810701 sPDR ADOCK 05000259 sj P PDR An Equal Opportunity Employer

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