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| Entered date | Event description | |
|---|---|---|
| ENS 42763 | 11 August 2006 12:12:00 | At 1705, on 08-10-06, the Plant Shift Superintendent was notified of a large water leak on High Pressure Fire Water system A-5. This system provides water for fire suppression to a portion of the C-337 process building. The system was immediately isolated and TSR (2445) required hourly fire patrols were initiated for the affected area. The leak was located on an underground eight inch header immediately adjacent to the south wall of the building. Engineering has reviewed this incident and determined that due to the size of the leak, the system could not have performed the intended safety function. This is being reported as an event in which equipment is disabled or fails to function as designed when the equipment is required by a TSR to be available and operable and either should have been operating or should have operated on demand, and no redundant equipment is available. PGDP Problem Report No. ATRC -06-2592; PGDP Event Report No. PAD-2006-07; Worksheet No. Responsible Division: Operations. The NRC Senior Resident Inspector has been notified of this event. |