05000482/FIN-2014007-02
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Finding | |
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| Title | Failure to Preclude Repetition of a Significant Condition Adverse to Quality to Prevent Reactor Coolant System Leak |
| Description | The inspectors reviewed a self-revealing violation of 10 CFR Part 50, Appendix B, Criterion XVI, Corrective Actions, for failure to prevent repetition of a significant condition adverse to quality related to reactor coolant system boundary leakage on April 20, 2014. This violation is documented in CR-87667. The failure to prevent the recurrence of a significant condition adverse to quality was a performance deficiency. This performance deficiency was more than minor because it affected the reactor coolant system equipment and barrier performance attribute of the Barrier Integrity cornerstone objective. Specifically, the failure to prevent the recurrence of high cycle fatigue, induced socket weld cracking resulting in reactor coolant system barrier leakage. The inspectors assessed the significance of the issue using IMC 0609, Appendix G Attachment 1, Shutdown Operations Significance Determination Process Phase 1 Initial Screening and Characterization of Findings, dated May 9, 2014. The finding was of very low safety significance (Green) because the finding did not cause a low temperature over pressurization, did not increase the potential for a freeze seal failure, did not involve steam generator nozzles dams, did not cause a boron dilution event, or degrade the ability to isolate a leak path. The performance deficiency occurred in 2003, this finding is not indicative of current plant performance and does not have a cross-cutting aspect. |
| Site: | Wolf Creek  |
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| Report | IR 05000482/2014007 Section 4OA2 |
| Date counted | Sep 30, 2014 (2014Q3) |
| Type: | NCV: Green |
| cornerstone | Barrier Integrity |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71152 |
| Inspectors (proximate) | L Willoughby R Stroble S Hedger Z Hollcraft G Miller H Freeman L Brandt |
| Violation of: | 10 CFR 50 Appendix B Criterion XVI |
| INPO aspect | |
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Finding - Wolf Creek - IR 05000482/2014007 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Wolf Creek) @ 2014Q3
Self-Identified List (Wolf Creek)
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