05000338/FIN-2010005-02
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Finding | |
|---|---|
| Title | Inadequate Corrective Action for Fatigued Fuse Clips in Safety-Related Breakers |
| Description | A Green, non-cited violation of 10 CFR 50, Appendix B, Criterion XVI, Corrective Action, was identified by the NRC for failure to promptly identify an
correct a condition adverse to quality regarding fatigued fuse clips associated with safety-related breakers. The licensee entered this problem into their corrective action program as condition report 400128. The inspectors determined that the failure to promptly initiate corrective actions for fatigued fuse clips was a performance deficiency (PD) which resulted in two safetyrelated breaker failures. The inspectors reviewed IMC 0612, Appendix B, and determined the PD was more than minor because it impacted the mitigating systems cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences, and the related attribute of design control for the initial structure, system, component design. In accordance with NRC Inspection Manual Chapter (IMC) 0609, Significance Determination Process, the inspectors performed a Phase 1 analysis and determined that the finding was of very low significance because the finding was not a design deficiency, did not represent a loss of safety function and did not screen as potentially risk significant due to a seismic, flooding or severe weather initiating event. This finding involved the cross-cutting area of problem identification and resolution, the component of the corrective action program, and the aspect of thorough evaluation of problems such that resolutions address extent of condition, P.1(c), because the licensee failed to initiate adequate corrective actions to address extent of condition for fatigued fuse clips. |
| Site: | North Anna  |
|---|---|
| Report | IR 05000338/2010005 Section 4OA2 |
| Date counted | Dec 31, 2010 (2010Q4) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71152 |
| Inspectors (proximate) | A Nielsen W Loo J Reece E Lea G Mccoy R Clagg J Caruso G Johnson D Dempsey J Furia G Dentel E Knutson M Schneider M Balazik A Rao |
| CCA | P.2, Evaluation |
| INPO aspect | PI.2 |
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Finding - North Anna - IR 05000338/2010005 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (North Anna) @ 2010Q4
Self-Identified List (North Anna)
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