05000334/FIN-2012003-01
Finding | |
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| Title | Inadequate Maintenance results in Low Head Safety Injection System Exceeding Outside Containment Leakage Rate |
| Description | A self-revealing Green NCV of TS 5.4.1, Procedures, for FENOCs failure to establish adequate procedural guidance for plant conditions for containment isolation valve leakage testing. Specifically, inadequate procedural guidance in BVT-1.47.11, Safety Injection and Charging System Containment Penetration Valve Integrity Test, established plant conditions that resulted in a water hammer event in reactor coolant system (RCS) safety injection piping. FENOC entered this issue into the corrective action program for resolution as condition report 2012-06841.
The inspectors determined the failure to establish adequate procedural guidance for plant conditions for containment isolation valve leakage testing is a performance deficiency that was within FENOCs ability to foresee and correct which contributed to a water hammer event in RCS safety injection piping. The finding is more than minor because it affects the procedure quality attribute of 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. The inspectors evaluated the finding using PWR Refueling Operation: RCS level > 23 or PWR Shutdown Operation with Time to Boil > 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> and Inventory in the Pressurizer Checklist 4 of Attachment 1 to Appendix G of IMC 0609. Because no loss of control occurred and all mitigating capabilities were available, a Phase 2 quantitative assessment was not required. Therefore, the inspectors determined the finding to be of very low safety significance. This finding has a cross-cutting aspect in the area of Human Performance, Work Control, because FENOC failed to coordinate work activities impacted by changes to the work scope in the plant. |
| Site: | Beaver Valley |
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| Report | IR 05000334/2012003 Section 1R20 |
| Date counted | Jun 30, 2012 (2012Q2) |
| Type: | NCV: Green |
| cornerstone | Initiating Events |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71111.2 |
| Inspectors (proximate) | A Dugandzic C Crisden D Spindler E Bonney G Hunegs J Laughlin P Kaufman S Barber S Barr T Moslak T Ziev |
| CCA | H.5, Work Management |
| INPO aspect | WP.1 |
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Finding - Beaver Valley - IR 05000334/2012003 | |||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Beaver Valley) @ 2012Q2
Self-Identified List (Beaver Valley)
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