ML20086H190
| ML20086H190 | |
| Person / Time | |
|---|---|
| Site: | Vermont Yankee File:NorthStar Vermont Yankee icon.png |
| Issue date: | 12/04/1972 |
| From: | Rosalyn Jones VERMONT YANKEE NUCLEAR POWER CORP. |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| AO-50-271-72-14, VYV-2356, NUDOCS 8401160051 | |
| Download: ML20086H190 (1) | |
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' VERhiONT YANKEE NUCLEAR POWER CORPORATION SCVcNTY OCVcH OMOVE OTitCCT Rurt. Ann. VtmMONT 05701 sitPLY tos P. O. DOX 187 VYve2356 VERNON. VERMONT 05354 Deccaber 4, 1972
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United States Atomic EnerEy Comission Directorate of Regulatory Operations, Region I 970 Broad Street Newark, New Jersey 07102 l
REFERENCE:
Operating License DPR-28 i
Docket No. 50-271 Abnormal Occurrence No. A0-72-14 Gentlenent l
An defined by Technical Spectfications for the Vermont Yankee
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Nuelcar Power Station, Section 6.7.A.c, we are reporting the following Abnormal Occurrence as A0-72-14 and conffreing our telephone converaction with your office.
At approximately 1015 on the corning of Deccaber 4 while perforning routino surveillance on the Core Spray System, the Reactor Pressure Switch (RilR/ Core Spray Pernisoive) designated pS 2-3-523 actuated at a pressure
<335 pufn, This constitutco a violation of Technical Specifications, Tablo 3.2.1, which specifles a value of 350 -l-15 poig, and requires two operable inntrunent channela per trip system. The nyate:n vould have operated, if required, due to the one out of two logic employed. The reactor who operating at a power level of approximately 65% at the time of this occurrence.
The switch van irnediately recet, functionally tested, and verified to be operable within the tolerance npecified.
This renedial action van completed in a tino span which precluded the neceouity of further action.
Very truly youro, VERP.'T Y N
'E PUCLEAR POWER CORPORATION hl hl O
1 Robert F.
nes Plant Superintendent
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