05000443/FIN-2015002-01
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Finding | |
|---|---|
| Title | Inadequate Identification of Structural Deformation and Impacts on Associated Equipment |
| Description | The inspectors identified a Green NCV of 10 CFR, Appendix B, Criterion XVI, Corrective Action, because NextEra did not ensure that degraded conditions were identified and entered into the corrective action process. Specifically, the inspectors identified multiple instances of material and equipment degradation resulting from deformation of the containment enclosure building (CEB). NextEra entered the condition into their corrective action program (CAP) (AR 02014325) and initiated a root cause evaluation to evaluate the aggregate cause of the non-conforming condition. Additionally, NextEra initiated immediate and prompt operability determinations (PODs), when appropriate, for each of the individually identified material and equipment degraded conditions. This performance deficiency was considered to be more than minor because, if left uncorrected, the performance deficiency had the potential to lead to a more significant safety concern if CEB deformation continued to affect plant safety-related structures, systems, and components (SSCs) without appropriate identification and evaluation by NextEra personnel. The finding was evaluated in accordance with IMC 0609, Appendix A, The Significance Determination Process for Findings At-Power, and determined to be of very low safety significance (Green) since it did not represent an actual open pathway in the physical integrity of reactor containment, containment isolation systems, or heat removal systems. In addition, the structures and components remained capable of performing their safety function. The finding is related to the cross-cutting area of Problem Identification and Resolution Identification, because NextEra did not implement a CAP with a low threshold for identifying issues. Specifically, NextEra failed to identify multiple instances of material and equipment degradation that would have led to the identification of the CEB non-conforming condition [P.1]. |
| Site: | Seabrook  |
|---|---|
| Report | IR 05000443/2015002 Section 4OA2 |
| Date counted | Jun 30, 2015 (2015Q2) |
| Type: | NCV: Green |
| cornerstone | Barrier Integrity |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71152 |
| Inspectors (proximate) | B Dionne C Newport G Dentel N Floyd P Cataldo W Cook |
| Violation of: | 10 CFR 50 Appendix B Criterion XVI |
| CCA | P.1, Identification |
| INPO aspect | PI.1 |
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Finding - Seabrook - IR 05000443/2015002 | |||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Seabrook) @ 2015Q2
Self-Identified List (Seabrook)
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