05000263/FIN-2008008-01
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Finding | |
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| Title | Failure To Adequately Identify A Condition Adverse To Quality And Identify Corrective Actions To Prevent Recurrence |
| Description | The NRC identified a Green NCV of 10 CFR 50, Appendix B, Criterion XVI, Corrective Action, for the failure to identify a Condition Adverse to Quality (CAQ). Specifically, the licensee did not identify a maintenance preventable functional failure (MPFF) associated with the HPCI system. The MPFF was associated with the in-service test (IST) failure of the HPCI accumulator check valve (AI-611) during the 2007 refueling outage. The failure was caused by debris that was lodged in the valve seat. Of particular significance, was the fact that the issue was the subject of three licensee-initiated action requests (ARs) between March 2007 to February 2008, regarding the test failure, the failure to evaluate past-operability and the failure to evaluate the maintenance rule aspects, none of which properly evaluated the issue. The licensee identified the MPFF after an NRC inspector questioned the adequacy of the previous evaluations, in particular, why the source of the debris had never been evaluated. This finding also has an associated cross-cutting aspect associated in the area of PI&R, Corrective Action Program for the failure to properly evaluate the HPCI accumulator check valve IST failure. [P.1(C)] The finding is more than minor because it affects the Equipment Performance attribute of the Mitigating Systems Cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. The finding is of very low safety significance, because the HPCI system remained operable and available. (Section 4OA2.1(2) |
| Site: | Monticello  |
|---|---|
| Report | IR 05000263/2008008 Section 4OA2 |
| Date counted | Dec 31, 2008 (2008Q4) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71152 |
| Inspectors (proximate) | N Shah D Szwarc S Thomas D Resser |
| CCA | P.2, Evaluation |
| INPO aspect | PI.2 |
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Finding - Monticello - IR 05000263/2008008 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Monticello) @ 2008Q4
Self-Identified List (Monticello)
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