05000219/FIN-2010002-01
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Finding | |
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| Title | Adjustments to Maintenance Rule System Performance Criteria not made after Biannual Evaluation |
| Description | The inspectors identified a Green non-cited violation (NCV) of 10 CFR50.65(a)(3), requirements for monitoring the effectiveness of maintenance at nuclear power plants (maintenance rule), because Exelon did not make adjustments to established performance and condition monitoring goals to ensure that unavailability and reliability of structures, systems and components (SSC) were appropriately balanced. Specifically, Exelon did not ensure that corrective actions identified in a 2006-2007 (a)(3)evaluation to update performance criteria sheets for maintenance rule systems were adequately implemented. Exelon entered this issue into their corrective action system as IR 1053237.This finding is not similar to any of the IMC 0612 Appendix E minor examples, but is more than minor because if left uncorrected it would have the potential to lead to a more significant safety concern. Specifically, the failure to implement revised performance criteria could prevent the screening of safety significant systems that have exceeded their performance criteria through a maintenance rule expert panel and prevent Exelon from monitoring degraded components against established goals in a manner sufficient to provide reasonable assurance that such SSCs are capable of fulfilling their intended functions. This finding is not suitable for evaluation using the Significance Determination Process (SDP) because the performance deficiency did not cause the degraded equipment performance. Findings for which the SDP does not apply may be Green or assigned a severity level after NRC management review. Per the guidance provided in NRC inspection procedure 71111.12, this issue is considered to be a Category II finding and thus, per NRC management review, is considered to be Green. This finding has across-cutting aspect in the area of problem identification and resolution (P.3(c)).Specifically, Exelon did not ensure that actions identified in the 2006-2007 (a)(3)assessment to update performance criteria sheets for maintenance rule systems were completed and implemented. |
| Site: | Oyster Creek |
|---|---|
| Report | IR 05000219/2010002 Section 1R12 |
| Date counted | Mar 31, 2010 (2010Q1) |
| Type: | NCV: Green |
| cornerstone | Barrier Integrity |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.12 |
| Inspectors (proximate) | W Schmidt J Kulp R Bellamy J Ambrosini |
| CCA | P.6, Self-Assessment |
| INPO aspect | CL.2 |
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Finding - Oyster Creek - IR 05000219/2010002 | |||||||||||||||||||||||||||||||||
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Finding List (Oyster Creek) @ 2010Q1
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