05000361/FIN-2008003-04
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Finding | |
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| Title | Failure to Properly Implement the Operability Determination Process |
| Description | The inspectors identified a noncited violation of 10 CFR Part 50, Appendix B, Criterion V, Instructions, Procedures and Drawings, for the failure of operations and engineering personnel to follow procedures and adequately evaluate degraded, nonconforming, and unanalyzed conditions to support operability decision-making. Specifically, on June 3, 2008, operations and engineering personnel failed to adequately evaluate the operability of the Unit 2 component cooling water system Train A when unexpected, rapid heat exchanger fouling occurred during low tide conditions. This finding was entered into the licensees corrective action program as Action Request 080600438. The finding is greater than minor because the degraded component cooling water heat exchanger is associated with the equipment performance attribute of the Mitigating Systems Cornerstone and affects the associated cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. Using the Manual Chapter 0609, Significance Determination Process, Phase 1 Worksheets, the finding is determined to have very low safety significance because the finding did not result in a loss of safety function of component cooling water Train A for greater than the Technical Specification allowed outage time. This finding has a crosscutting aspect in the area of human performance associated with decisionmaking because the licensee did not make safety-significant decisions using a systematic process when faced with uncertain and unexpected conditions H.1(a) (Section 1R15) |
| Site: | San Onofre  |
|---|---|
| Report | IR 05000361/2008003 Section 1R15 |
| Date counted | Jun 30, 2008 (2008Q2) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.15 |
| Inspectors (proximate) | R Kopriva G George J Reynoso G Warnick C Osterholtz M Hay S Makor M Baquera |
| CCA | H.13, Consistent Process |
| INPO aspect | DM.1 |
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Finding - San Onofre - IR 05000361/2008003 | |||||||||||||||||||||||||||||||||||||||||||
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Finding List (San Onofre) @ 2008Q2
Self-Identified List (San Onofre)
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