05000362/FIN-2012010-01
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Finding | |
|---|---|
| Title | Inadequate Trip/Transient and Event Review Procedure |
| Description | The inspectors identified a non-cited violation of 10 CFR 50, Appendix B, Criterion V, Instructions, Procedures and Drawings, because Operations Procedure SO123-0-A8, "Trip/Transient and Event Review," Revision 5, was not adequate in that it did not define what unplanned reactor trip meant, and the operators did not complete the procedure as required. In response, the licensee revised the procedure to describe unplanned reactor trips as explained in industry guidance. This issue was entered into the licensees corrective action program as Nuclear Notifications NN 201915602 and NN 202161665. This finding is more than minor because if left uncorrected the performance deficiency could be viewed as a precursor to a significant event. Using Inspection Manual Chapter 0609.04, Phase 1 Initial Screening and Characterization of Findings, and Inspection Manual Chapter 0609, Appendix A, The Significance Determination Process (SDP) for Findings At-Power, the inspectors determined the finding to be of very low safety significance because a reactor trip was initiated with no loss of mitigating equipment or other associated initiators. This finding does not have a cross-cutting aspect because the associated procedure change occurred in 2003 and was not representative of current performance. |
| Site: | San Onofre  |
|---|---|
| Report | IR 05000362/2012010 Section 4OA5 |
| Date counted | Sep 30, 2012 (2012Q3) |
| Type: | NCV: Green |
| cornerstone | Initiating Events |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 93800 |
| Inspectors (proximate) | B Hagar G Werner J Reynoso J Rivera-Ortiz |
| INPO aspect | |
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Finding - San Onofre - IR 05000362/2012010 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (San Onofre) @ 2012Q3
Self-Identified List (San Onofre)
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