05000440/FIN-2011003-04
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Finding | |
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| Title | LICENSEE-IDENTIFIED Violation |
| Description | The failure to assess the increase in risk is a performance deficiency as defined in IMC 0612, Power Reactor IRs, Appendix B, Issue Screening. The inspectors determined that the finding was more than minor because it is similar to example 7.e of IMC 0612, Appendix E, Examples of Minor Issues and resulted in the qualitative shutdown probabilistic risk assessment (PRA) risk crossing the threshold into a higher licensee-established risk category. Therefore, the performance deficiency is associated with the Mitigating Systems Cornerstone attribute of Equipment Performance and adversely impacted the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. The finding was reviewed for significance in accordance with IMC 0609, Appendix K, Maintenance Risk Assessment and Risk Management Significance Determination Process. Appendix K directs that for licensees who only perform qualitative analyses of plant configuration risk due to maintenance activities, as is the case during shutdown for this licensee, the significance of the deficiencies must be determined by an internal NRC management review using risk insights where possible in accordance with IMC 0612. The NRC management review concluded that this finding was of Green safety significance because missing risk management actions did not result in loss of key shutdown risk functions and plant TS continued to be met for the plant conditions at the time. |
| Site: | Perry  |
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| Report | IR 05000440/2011003 Section 4OA7 |
| Date counted | Jun 30, 2011 (2011Q2) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | R Orlikowski J Cassidy M Marshfield M Phalen D Jones J Cameron T Hartman P Smagacz V Myers |
| INPO aspect | |
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Finding - Perry - IR 05000440/2011003 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Perry) @ 2011Q2
Self-Identified List (Perry)
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