ML20139A294
| ML20139A294 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 11/22/1985 |
| From: | Lempges T NIAGARA MOHAWK POWER CORP. |
| To: | Murley T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| NMP-15062, NUDOCS 8512110495 | |
| Download: ML20139A294 (1) | |
Text
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Nh!P-15062 e
NIAGARA MOHAWK POWER CORPORATION NIAGARA MOHAWK 300 ERIE DOULEVARD. WEST SYRACUSE. N. Y.13202 November 22, 1985 h!r. Thomas E. blurley Regional Administrator United States Nuclear Regulatory Commission Region I 631 Park Avenue King of Prussia, PA 19406 RE: Docket 50-220 SPECIAL REPORT Gent 1cmen:
In accordance with Table 3.6.11-1 and Action Statement 4 of Tabic 3.6.11-2 of the Nine Mile Point Unit I Technical Specifications, we hereby submit the following Special Report concerning an inoperable channel of the Containment liydrogen-Oxygen Monitoring System.
At 2100 on November 9, 1985, the Channel #11 liydrogen-Oxygen Monitoring Unit (Beckman Instruments, Inc.) was declared inoperable due to a loss of sample flow.
It is believed that a reboiler on the sample return line was subjected to excessive condanntion when the unit was shutdown for calibration of instrumen-tation. The coadensation blocked the sampic return line to containment, thereby rendering the unit inoperable.
An investigation into this occurrance is continuing under a station work request. A supplemental report will be submitted on or before December 13, 1985.
Very truly yours, A f.-
Thomas E. Lempges Vice President Nuclear Generation V
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