ML20115G646
| ML20115G646 | |
| Person / Time | |
|---|---|
| Site: | Oyster Creek |
| Issue date: | 10/22/1992 |
| From: | J. J. Barton GENERAL PUBLIC UTILITIES CORP. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| 92-07, 92-7, C321-92-2297, NUDOCS 9210260275 | |
| Download: ML20115G646 (2) | |
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3 GPU Nuclear Corporation QQg7 Post Office Box 388 Route 9 South Forked River. New Jersey 087310388 609 971 4000 Wnttr's Direct Dial Number; October 22, 1992 C321-92-2297 U.S. Nuclear Regulatory Commission Attention: vocument Control Desk Washington, D.
20555 Gentlemen:
Subject:
Oyster Creek Nuclear Generating Station Docket No. 50-219 Special Report No. 92-07 Enclosed is Special Report No. 92-07 which is submitted in accvdance with technical specification 3.12.B.3.
If there are any questions, please call Mr. Michael Helier, Licensing Engineer, at (609) 971-4680.
j incerely,,
~s W
Q'b.J. BD ron J
o Vice President and Director-Oyster Creek Enclosure cc:
NRC Region 1 Administrator NRC Resident Inspector Oyster Creek NRC Project Manager y
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9210260275 921022
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d-w; Oyster Creek nu iear Generatina Station Special Report 92-07 Egport Date:
October 22. 1992 Occurrence Date: October 21, 1992 Identification of Occurrencel Isolation of the Diesel Fire pumps from the Fire Suppression System.
Description of Occurrence:
On October 15, 1992 during testing, it was determined that the stem and disc
- were separated on the discharge valve (V-9-004) for diesel fire pump P-9-102A.
Diesel fire pump P-9-102A was declared inoperable and a job order prepared to replace V-9-004.
Since both diesel pumps were required to be isolated to replace V-9-004, it was decided to replace the discharge valve (V-9-005) for P-9-1028 at this time. -This was considered prudent because of theirfsimilar operating history and the target of opportunity existed. At 1230~ hours on 10/21/92 the diesel _ fire pumps were isolated and work began on' replacement of
-the'(2) diesel fire pump discharge valves.
Prior-to; removing the (2) diesel fire pumps from service and isolating the supply line which feeds the Oyster.
Creek Fire Suppression Water System, the redundant fire pump P-9-101 was started and lined (4) to-supply the; suppression _ water system.
Both.V-9-004 and V-9-005 were replaced and fire diesel P-9-102A was declared operable at 03P8 hours-on 10/22/92..The redundant fire pump-was then secured-and system line ups were established consirtent with one (1) operable-diesel-. fire-pump.-
During this entire time, the redundant fire' pump which has a design capacity.
of 2000 gpm was-operating to maintain pressure on the fire suppression water system and the fire suppression water tank was full with a tsjacity exceeding
-310,000 gallons.
Hence the safety significance of +his event was minimal,
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