ML20086H228
| ML20086H228 | |
| Person / Time | |
|---|---|
| Site: | Vermont Yankee File:NorthStar Vermont Yankee icon.png |
| Issue date: | 11/07/1972 |
| From: | Rosalyn Jones VERMONT YANKEE NUCLEAR POWER CORP. |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| Shared Package | |
| ML20086H216 | List: |
| References | |
| AO-50-271-72-12, VYV-2319, NUDOCS 8401160086 | |
| Download: ML20086H228 (1) | |
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VERMONT YANKEIo NUCLEAR POWER CORPORATION
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sEVcNTY SCVcN OMOVC STHcCT l$tJTLAND, YEftMONT 05701 kY, as.n.y voi
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VERNON. VERMONT 05354 November 7, 1972 United States Atornic Energy Corcission Ditectorate of Regulatory operations, Region I 970 Broad Street Ncuark, New Jercey 07102 REFEPJWCE: Operating License DPR-28 Docket No. 50-271 Abnorttal Occurrence No. A0-72-12 Centlement As defined by Technical Specifications for the Vermont Yankee Hucicar Power Station, Section 6.7.A.c, we are reporting the following Abnormal Occurrence ao AO-72-12 and confirming our telephone conversation vith your of fice yesterday.
At approximately 1240 on the af ternoon of November 6 with the reactor oporating at approximately 75% power, the off -Cas Sample Chanber van intentionally inolated to permit replacenent of the Sanple Chanber Flow Hetering Valve. Air ejector off-gas van unnonitored for approxinately 15 tainutes and this constituted a violation of Technical Specificationo, r
Section 3.8.A.1.
During the period that the Off-Cas Sanple Chanber van foolated, and aubnequent to that time, off-gas activity at the atack ohowed a conutant level of 19x103 pci/nce on the atack gas monitoring systen and a grab canplo van obtained at the air ejector.
The Sampic chattber riow Metering Valve van found to he leaking when high nirborno particulate activity in the hirbine Building initiated n nearch for leakage into the building.
Besides replacement of the valve, three fittings and one union were tightened.
The off-gaa monitoring nyatem is currently operabic in accordance with Technical Specifications.
8401160086 721110 Very truly youro, PDR ADOCK 05000271 S
PDR VEP DNT YA! ATE NUC12AR I'OWER CORPORATION j j l(
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Robert F..
Onca Plent Superintendent