05000305/FIN-2009006-04
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Finding | |
|---|---|
| Title | Inadequate 50.59 Evaluation of Shutdown Loss of Coolant Accident Procedure |
| Description | The inspectors identified a finding of very low safety significance and associated Non-Cited Violation of 10 CFR 50.59(d)(1) for the licensees failure to perform an adequate review of an abnormal operating procedure associated with a shutdown loss of coolant accident. As part of its corrective actions, the licensee revised procedure OP-KW-AOP-RHR-002 to remove the procedure applicability to the Cold Shutdown mode and Refueling mode with reactor vessel head on. The inspectors determined that the finding was more than minor because it could not reasonably be determined that the activity would not ultimately have required NRC approval. Operation in accordance with the procedure may have challenged the reactor coolant system barrier. The inspectors determined that the finding did not require a quantitative assessment per IMC 0609, Appendix G. Therefore, the finding screened as having very low safety significance (Green) and was determined to be a Severity Level IV violation. The cause of this finding is related to the cross-cutting aspect in the area of Human Performance, Decision Making, because the licensee failed to use conservative assumptions in decision making to demonstrate that the proposed action to include additional modes of applicability for the Shutdown LOCA procedure was safe in order to proceed. |
| Site: | Kewaunee  |
|---|---|
| Report | IR 05000305/2009006 Section 1R21 |
| Date counted | Sep 30, 2009 (2009Q3) |
| Type: | TEV: Severity level IV |
| cornerstone | Barrier Integrity |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.21 |
| Inspectors (proximate) | C Zoia N Valos S Sheldon C Brown H Campbell F Baxter M Jones A Stone |
| CCA | H.14, Conservative Bias |
| INPO aspect | DM.2 |
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Finding - Kewaunee - IR 05000305/2009006 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Kewaunee) @ 2009Q3
Self-Identified List (Kewaunee)
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