05000482/FIN-2012007-01
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Finding | |
|---|---|
| Title | Inadequate Procedure to Implement Compensatory Measures |
| Description | The inspectors identified a non-cited violation of 10 CFR Part 50, Appendix B, Criterion V, Instructions, Procedures, and Drawings, for the licensees failure to adequately translate design information into procedures and requirements. Specifically, the licensee had information that its calculation for vital switchgear cooling included non-conservative assumptions. These assumptions called into question the ability of air conditioning systems to adequately cool Class 1E switchgear under all design conditions. The licensee failed to revise procedures to include compensatory actions necessary to ensure the vital switchgear remained operable. The licensee entered this finding in its corrective action program as condition report 53393. The inspectors determined that the licensees failure to adequately translate design information into procedures was a performance deficiency. The performance deficiency is more than minor because it affected 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. Using Inspection Manual Chapter 0609.04, Phase 1 Initial Screening an Characterization of Findings, the team determined the finding was of very low safety significance (Green) because it did not represent a loss of system safety function, did not represent the actual loss of safety function of a single train for greater than its technical specification allowed outage time, and did not screen as potentially risk significant due to a seismic, flooding, or severe weather initiating event. The finding has a cross-cutting aspect in the corrective action component of the problem identification and resolution cross-cutting area because the licensee failed to thoroughly evaluate the problem such that its resolution addressed its causes and extent of conditions |
| Site: | Wolf Creek  |
|---|---|
| Report | IR 05000482/2012007 Section 4OA2 |
| Date counted | Jun 30, 2012 (2012Q2) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71152 |
| Inspectors (proximate) | C Peabody D Powers K Martin L Willoughby M Williams S Makor T Farina |
| CCA | P.2, Evaluation |
| INPO aspect | PI.2 |
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Finding - Wolf Creek - IR 05000482/2012007 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Wolf Creek) @ 2012Q2
Self-Identified List (Wolf Creek)
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