05000458/FIN-2015008-04
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Finding | |
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| Title | Failure to Identify an Adverse Trend in the Performance of Post Maintenance Testing on High Critical Components |
| Description | The team identified a Green non-cited violation of 10 CFR Part 50 Appendix B Criterion XVI, Corrective Action, for the failure to identify and correct a condition adverse to quality. Specifically, the licensee failed to identify an adverse trend in the performance of post maintenance testing on high critical components. The licensee did not identify a trend or evaluate whether multiple equipment or component failures that in some instances complicated and challenged operators response to a scram was related to maintenance work performed, and if there was an opportunity to identify the issues through post maintenance testing prior to returning equipment to service. The licensees failure to promptly identify and correct a condition adverse to quality, as required by 10 CFR Part 50 Appendix B Criterion XVI, was a performance deficiency. The licensee failed to identify an adverse trend in the performance of post-maintenance testing on high-critical components. The performance deficiency was more than minor, and therefore a finding, because it was associated with the equipment performance attribute of the initiating event cornerstone and adversely affected the cornerstone objective to limit the likelihood of events that upset plant stability and challenge critical safety functions during shutdown as well as power operations. Specifically, the failure to identify a programmatic trend that reduced the reliability of multiple high-critical components whose failure could result in a significant impact to safe and reliable plant operation. Using Inspection Manual Chapter 0609, Appendix A, the team determined that this finding was of very low safety significance (Green) because it did not involve the loss of mitigation equipment or a support system. The finding has a human performance cross-cutting aspect associated with resources, in that the licensee leaders failed to ensure that personnel, equipment, procedures, and resources are available and adequate to support nuclear safety (H.1). Specifically, the licensee failed to evaluate a trend in degraded critical component conditions or malfunctions for multiple high critical components. |
| Site: | River Bend  |
|---|---|
| Report | IR 05000458/2015008 Section 4OA2 |
| Date counted | Sep 30, 2015 (2015Q3) |
| Type: | NCV: Green |
| cornerstone | Initiating Events |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71152 |
| Inspectors (proximate) | S Makor T Farnholtz A Barrett B Baca C Alldredge E Ruesch |
| Violation of: | 10 CFR 50 Appendix B Criterion XVI |
| CCA | H.1, Resources |
| INPO aspect | LA.1 |
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Finding - River Bend - IR 05000458/2015008 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (River Bend) @ 2015Q3
Self-Identified List (River Bend)
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