ML20004D531
| ML20004D531 | |
| Person / Time | |
|---|---|
| Site: | Fort Calhoun  |
| Issue date: | 05/22/1981 |
| From: | William Jones OMAHA PUBLIC POWER DISTRICT |
| To: | Seyfrit K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| References | |
| IEB-81-02, IEB-81-2, NUDOCS 8106090503 | |
| Download: ML20004D531 (1) | |
Text
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Omaha Public Power District
Y' 1833 MARNEY a O M AM A.
NasMASMA 4e103 s TELEPHONE S38 4000 AMEA CODE 402 May 22, 1981 Mr. K. V. Seyfrit. Director U. S. Nuclear Regulatory Comission Office of Inspection and Enforcement Region IV 611 Ryan Plaza Drive Suite 1000 Arlington, Texas 76011
Reference:
Docket No. 50-285
Dear Mr. Seyfrit:
IE Bulletin 81-02, dated April 9,1981, identified a concern that gate valves manufactured by Westinghouse, Borg-Warner, and Anchor Darling exhibited a failure to fully close against differential pres-sure. The potential problem was identified during Electric Power Research Institute tests of Power Operated Relief Valve (PORV) block valves.
In response to the bulletin, Omaha Public Power District has reviewed all valves installed at the Fort Calhoun Station and all valves in stores. The District's investigation revealed that none of the gate valves identified in the bulletin are in use or in stores. Accordingly, the District considers this concern to be closed.
Sincerely,
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4 W. C. Jones JUN 0 819815 ik: e.,-,e f
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Division Manager Production Operations
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U. S. Nuclear Regulatory Comission Office of Inspection and Enforcement Washington, D.C.
20555 LeBoeuf, Lamb, Leiby & MacRae 1333 New Hampshire Avenue, N.W.
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