ML20009D825

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Responds to IE Bulletin 81-02, Failure of Gate Type Valves to Close Against Differential Pressure. Info Was Encl in 810713 Ltr.Approx 40 Manhours Spent in Preparation of Response
ML20009D825
Person / Time
Site: Beaver Valley
Issue date: 07/13/1981
From: Woolever E
DUQUESNE LIGHT CO.
To: Grier B
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
2DLC-4111, IEB-81-02, IEB-81-2, NUDOCS 8107240384
Download: ML20009D825 (1)


Text

.

Ng (4:2) 458-6000 435 sixth Avenue

. Pittsburgh, Pennsylvania 2DLC-4111 15219 .- _

July 13, 1981 Ql / q-=

4' United States Nuclear Regulatory Commission 8

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Region I 631 Park Avenue -

, J, }Q King of Prussia, PA 19406 g JUL 2 31981 -

u s ta=ut n=tu m ATTENTION: Mr. Boyce H. Grier, Director (s .f3

SUBJECT:

BEAVER VALLEY POWER STATION - UNIT NO.

IE Bulletin 81-02 2[hg(V Docket No. 50-412 Failure of Gate Type Valves to Close Against Dif ferential Pressure Gentlemen:

Pursuant to the requirements of 10CFR50.55(e), we reported to your office on October 29, 1980, a significant deficiency, SDR 80-06, of problems with three-inch gate valves manufactured by the Westinghouse Electro-Mechanical

- Division. We provided you an interim report on November 20, 1980.

Additionally, the information requested in IE Bulletin No. 81-02 has just been supplied to you in " Interim Report No. 2 on 3" and 4" MOV Gate Valves in Safety Injection and Chemical and Volume Contro~ System at Beaver Valley Power Station - Unit No. 2", attached to my letter to you dated July 13, 1981.

As requested by this bulletin, we estimate approximately forty (40) manhours were expended in developing this response. No estimate of man-days is presently available for implementing corrective action.

DUQUESNE LIGHT COMPANY By -

Ef/J. Woolever Vice President wjs

, cc: Mr. V. Stello (15) 5 6t/ J Mr. K.'Jabbour

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0107240394 810713 PDR ADOCK 05000412 O PDR

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