05000361/FIN-2009005-06
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Finding | |
|---|---|
| Title | Failure to Adequately Implement Compensatory Measures to Maintain Equipment Operable |
| 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 personnel to follow procedures and adequately implement identified compensatory measures. Specifically, on November 25 and 28, 2009, operations personnel did not follow requirements to establish a compensatory measure to substitute manual operator actions for automatic actions to support the operability of the functions provided by the refueling water storage tank to charging pump suction piping. This finding was entered into the licensees corrective action program as Nuclear Notification NN 200689450. The finding is greater than minor because the inadequate implementation of compensatory measures, if left uncorrected, would have the potential to lead to a more significant safety concern. The finding is associated with the procedure quality 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 an actual loss of safety function, and did not screen as potentially risk significant due to a seismic, flooding, or severe weather initiating event. This finding has a crosscutting aspect in the area of human performance associated with decision making because operations personnel failed to make decisions using a systematic process, especially when faced with uncertain or unexpected plant conditions, to ensure safety is maintained H.1(a) (Section 1R15) |
| Site: | San Onofre  |
|---|---|
| Report | IR 05000361/2009005 Section 1R15 |
| Date counted | Dec 31, 2009 (2009Q4) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.15 |
| Inspectors (proximate) | L Ricketson G Guerra R Lantz P Elkmann J Adams J Reynoso G Warnick C Osterholtz A Fairbanks M Bloodgood R Schmitt |
| CCA | H.13, Consistent Process |
| INPO aspect | DM.1 |
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Finding - San Onofre - IR 05000361/2009005 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (San Onofre) @ 2009Q4
Self-Identified List (San Onofre)
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