05000338/FIN-2009004-07
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Finding | |
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| Title | Failure to Determine Cause and Related Corrective Action Results in Loss of a Required Offsite Power Supply |
| Description | A self-revealing finding was identified for the licensees failure to comply with the standards established in their corrective action program (CAP) to determine the correct cause and take corrective action to preclude repetition (CAPR) which resulted in the loss of the required offsite circuit for the 2H emergency bus and the consequent auto-start of the 2H emergency diesel generator (EDG). The licensee entered this problem into their CAP as condition report 332636.The inspectors determined the finding was more than minor because it impacted the initiating events cornerstone objective to limit the likelihood of those events that upset plant stability and challenge critical safety functions during shutdown as well as power operations, and the related attribute of equipment performance relative to offsite power reliability. The inspectors evaluated the finding using the significance determination process and determined that the finding was of very low significance or Green because the finding did not contribute to both the likelihood of a reactor trip and the likelihood of unavailability of mitigation equipment functions. This finding involved the cross-cutting area of problem identification and resolution, the component of the corrective action program, and the aspect of thorough evaluation of problems such that resolutions address extent of condition, (P.1.c), because the licensee failed to determine the appropriate root cause and commensurate corrective actions. |
| Site: | North Anna  |
|---|---|
| Report | IR 05000338/2009004 Section 4OA2 |
| Date counted | Sep 30, 2009 (2009Q3) |
| Type: | Finding: Green |
| cornerstone | Initiating Events |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71152 |
| Inspectors (proximate) | L Miller J Reece G Mccoy R Clagg |
| CCA | P.2, Evaluation |
| INPO aspect | PI.2 |
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Finding - North Anna - IR 05000338/2009004 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (North Anna) @ 2009Q3
Self-Identified List (North Anna)
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