05000445/FIN-2009004-04
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Finding | |
|---|---|
| Title | Inadequate Postfire Safe Shutdown Procedure |
| Description | The inspectors identified a noncited violation of Technical Specification 5.4.1.d for the failure to maintain adequate written procedures covering fire protection program implementation. Specifically, Procedure ABN-803A, Response to a Fire in the Control Room or Cable Spreading Room, Revision 8, which is used to perform an alternative shutdown from outside of the control room, failed to assure that the train A charging pump, relied on for achieving postfire safe shutdown, would not be damaged because of a loss of suction. During an alternative shutdown, operators must use the train A charging pump for the reactivity control and reactor coolant makeup functions by providing borated water from the refueling water storage tank. The licensee entered the finding into their corrective action program as Smart Form SMF-2009-004453-00. Failure to ensure that Procedure ABN-803 contained sufficient instructions to ensure that the credited train A centrifugal charging pump would be available following a postulated control room abandonment was a performance deficiency. This finding was more than minor because it was associated with the protection against external factors attribute of the Mitigating Systems cornerstone, and affected the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to external events (such as fire) to prevent undesirable consequences. Based on the senior reactor analysts significance determination process Phase 3 analysis, this finding was determined to have very low safety significance. The finding did not have a crosscuttin |
| Site: | Comanche Peak  |
|---|---|
| Report | IR 05000445/2009004 Section 4OA5 |
| Date counted | Sep 30, 2009 (2009Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | |
| Inspectors (proximate) | P Elkmann W Walker B Tindell R Hagar J Mateychick J Kramer |
| INPO aspect | |
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Finding - Comanche Peak - IR 05000445/2009004 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Comanche Peak) @ 2009Q3
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