05000361/FIN-2008010-07
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Finding | |
|---|---|
| Title | Inadequate Corrective Actions for Reactivity Events |
| Description | The team identified a noncited violation of 10 CFR Part 50, Appendix B, Criterion XVI, Corrective Actions, for the failure of operations management, operations training, and engineering to ensure that conditions adverse to quality are promptly identified and corrected. Specifically, multiple reactivity excursions occurred in the plant over the past two years, where corrective actions have been ineffective at addressing blended flow evolutions. The licensee has entered this into their corrective action program as Notifications NN 200062659 (addresses procedure change) and NN 200006366 (addresses common cause evaluation). The finding is more than minor because it is associated with the initiating events cornerstone (human performance attribute) and affects the associated cornerstone objective to limit the likelihood of those events that upset plant stability and challenge the critical safety functions during shutdown as well as power operations. If left uncorrected, the conditions would continue to contribute to additional operator errors or significantly impact the operators ability to perform blended flow evolutions. Using the Inspection Manual Chapter 0609, Significance Determination Process, Phase 1 Worksheets, the finding is determined to have very low safety significance (Green) because it did not contribute to both the likelihood of a reactor trip and the likelihood that mitigating equipment or functions will not be available. This finding has a crosscutting aspect in the area of problem identification and resolution associated with the corrective action program because the licensee did not thoroughly evaluate problems such that resolutions address causes and extent of condition P.1(c) |
| Site: | San Onofre  |
|---|---|
| Report | IR 05000361/2008010 Section 4OA2 |
| Date counted | Sep 30, 2008 (2008Q3) |
| Type: | NCV: Green |
| cornerstone | Initiating Events |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71152 |
| Inspectors (proximate) | L Ellershaw J Adams C Baron G Skinner P Gage R Bywater M Bloodgood D Reinert |
| CCA | P.2, Evaluation |
| INPO aspect | PI.2 |
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Finding - San Onofre - IR 05000361/2008010 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (San Onofre) @ 2008Q3
Self-Identified List (San Onofre)
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