05000266/FIN-2013002-03
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Finding | |
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| Title | Response for Loss of Spent Fuel Pool Cooling DID Not Consider the Most Limiting Time to Boil |
| Description | A finding of very low safety significance and an associated non-cited violation of 10 CFR Part 50, Appendix B, Criterion III, Design Control, was identified by the inspectors for the licensees failure to account for the most limiting spent fuel pool (SFP) time-to-boil in calculations and procedures. Specifically, the service water design-basis analysis and abnormal operating procedure (AOP) for loss of SFP cooling used a time-to-boil value based on non-limiting conditions. The issue was entered into the licensees CAP as AR01852528 for evaluation and development of corrective actions. The finding was determined to be more than minor in accordance with IMC 0612, Appendix B, because it was associated with the Barrier Integrity Cornerstone, in that, if left uncorrected, it would have led to a more significant safety concern. The inspectors evaluated the finding using IMC 0609, Appendix A, Exhibit 3, for the Barrier Integrity Cornerstone, and determined the significance of this finding could be evaluated using qualitative criteria in accordance with IMC 0609, Appendix M. With consultation of an RIII SRA, the inspectors determined the finding screened as of very low safety significance because it involved a design-basis event (e.g., loss of cooling accident (LOCA)) on one unit occurring during a short window of time when the SFP is subjected to the maximum allowed heat load shortly after the other unit is defueled. The inspectors did not identify a cross-cutting aspect associated with this finding because the finding did not reflect current performance due to the age of the performance deficiency. |
| Site: | Point Beach  |
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| Report | IR 05000266/2013002 Section 1R07 |
| Date counted | Mar 31, 2013 (2013Q1) |
| Type: | NCV: Green |
| cornerstone | Barrier Integrity |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.07 |
| Inspectors (proximate) | J Cameron M Jones M Thorpe Kavanaugh N Feliz Adorno P Smagacz R Winter S Burton V Myers |
| Violation of: | 10 CFR 50 Appendix B Criterion III, Design Control |
| INPO aspect | |
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Finding - Point Beach - IR 05000266/2013002 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Point Beach) @ 2013Q1
Self-Identified List (Point Beach)
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