TXX-3396, Interim Deficiency Rept Re Failure of Westinghouse Valve to Close Completely Under Preoperational Test Conditions, Initially Reported 810217.Evaluation of Other Valves for Closure Problem Continuing.Final Rept by 811016
| ML20005B894 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 08/31/1981 |
| From: | Gary R TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| To: | Madsen G NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| References | |
| 10CFR-050.55E, TXX-3396, NUDOCS 8109160084 | |
| Download: ML20005B894 (1) | |
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TENAS UTILITIES GENERATING COMP.iNY 2001 IUWAN Tt M Eit D \\l.I A%, TEX AN 7.%201
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1 I6 SEP 1519815 r8 9.s.menia w_uross RJ Mr. G. L. Madsen, Chief g
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Reactor Projects Branch 6
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Office of Inspection & Enforcement 6h Ryan Plaza Dr., Suite 1000 Docket Nos. 50-445 Arlington, Texas 76012 50-446 COMANCHE PEAK STEAM ELECTRIC STATION WESTINGHOUSE GATE VALVES FILE:
10110 l
Dear Mr. Madsen:
On February 17, 1981 in accordance with 10 CFR 50.55(e), we verbally e
l reported to your Mr. R. G. Taylor a deficiency regarding a Westinghouse valve that failed to close completely under pre-operational test conditions.
We have submitted reports logged TXX-3288 and TXX-3322 dated March 13, 1981 and May 21, 1981 respectively.
As stated in our TXX-3322, it is anticipated that we will submit our final report on the Westinghouse three and four inch valves by October 16, 1981.
Subsequently, we have been advised by the supplier that the closure problems could also be anticipated on 6, 8,10,12,14,16 and 18 inch valves.
We J
are currently conducting an evaluation of these additional valves.
We expect to advise you of the results of our engineering evaluation, impact and corrective action schedule by October 1,1981.
If we can provide any additional information, please advise.
Very truly yours, l
A.
R.
. Gary RJG:kh c
cc: NRC Region IV - (0 + 1 capy)
Director, Inspection and Enforcement - (15 copies) c/o Dir:tribution Services Branch, DDC, ADM.
U. S. Nuclear Regulatory Commission Washington, D. C.
20555 fdo 8109160004 810831 PDR ADOCK 05000445 S