ML20086H275
| ML20086H275 | |
| Person / Time | |
|---|---|
| Site: | Vermont Yankee File:NorthStar Vermont Yankee icon.png |
| Issue date: | 10/20/1972 |
| From: | Riley B VERMONT YANKEE NUCLEAR POWER CORP. |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| Shared Package | |
| ML20086H274 | List: |
| References | |
| AO-50-271-72-08, AO-50-271-72-8, VYV-2296, NUDOCS 8401160245 | |
| Download: ML20086H275 (1) | |
Text
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VICRMONT YANKEE NUCLEAR POWER CORPORATION I
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P. O. DOX 157 venNON VERMONr 05354 October 20, 1972 United Stateo Ato nic. Encry.y Coutsission Directorate of Regulatory Operations, Region I 970 Broad Street Newark, New Jersey 07102
REFERENCE:
Operating Licenne DPR-28 Docket lio. 50-271 Abnornal Occurrence No. A0-72-08 Gentlenent An defined by Technical Specifications. for the Vernont Yanhec Nuclear Power Station, Section 6.7. A.c, we are trporting the following Abnornal Occurrence an A(972-08 and confirning our telephone conversation with your office on this date.
At approxinately 10:00 a.m. on October 20. during conduct of the Auto::atic Depressurization Systen
'B' Logic Test the Relief Valve Initiation Tine Delay Relay (No. 2E-K5B) was found to energize at 123 eeconds. This constitutes a violation of the specified t.itur in Table 3.2.1 of Technical Specifications, which requirca a tino delay of < 120 acconds.
The reactor voo operating at approxinately 50% pover at the tirae of thio occurrence.
The relay was it=nediately recet, functionally tested and verified to be opersbic at a titte delay of 117 seconds. This remedial action van co:pplcted in a tino apan that precluded the neccooity of further irmediate.
action.
Very truly youro, l
VEPJ'ONT YANKEE NUCLEAR POWER CORPORATION D'
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Bradford W. Riley Assistant Plant Superintcodent MFL/rpb s,[/ f
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