05000315/FIN-2009005-02
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Finding | |
|---|---|
| Title | Installation of non-conforming parts on the safety-related emergency diesel generators. |
| Description | One self-revealed finding of very low safety significance with an associated Non-Cited Violation of 10 CFR Part 50, Appendix B, Criterion XV, Non-conforming Materials, Parts, or Components, was identified for installing non-conforming parts on the safety-related emergency diesel generators. Specifically, the licensee installed several Delivery Valve Holder (DVH) assemblies that were fabricated using material previously identified as being prone to cracking, non-conforming, on all four safety-related Emergency Diesel Generators (EDG). Consequently, on June 10, 2009, during an operability run for the Unit 2 CD EDG, a DVH cracked, which resulted in a fuel oil leak on the 6F fuel injector line. For corrective actions, the licensee replaced all non-conforming DVHs with new DVHs that were fabricated using materials that were not prone to cracking. Additional corrective actions included revising several procedures associated with the dedication plan and receipt inspection program. This issue was entered into the licensees corrective action program as condition report AR 00852905. This finding affected the Mitigating Systems cornerstone and was more than minor because the issue could become a more significant safety concern if left uncorrected. Specifically, installing non-conforming parts on safety-related equipment under certain circumstances could result in the subsequent degradation or loss of equipment required for safe shut down of the plant. This finding was of very low safety significance because the finding is a qualification deficiency that did not result in the loss of operability or functionality of the EDGs. This finding was associated with a cross-cutting aspect in the area of human performance resources (H.2 (c)) |
| Site: | Cook  |
|---|---|
| Report | IR 05000315/2009005 Section 4OA2 |
| Date counted | Dec 31, 2009 (2009Q4) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71152 |
| Inspectors (proximate) | R Jickling R Winter D Szwarc M Mitchell J Lennartz P Laflamme J Cameron P Voss R Murray |
| CCA | H.7, Documentation |
| INPO aspect | WP.3 |
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Finding - Cook - IR 05000315/2009005 | |||||||||||||||||||||||||||||||||||||||||
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Finding List (Cook) @ 2009Q4
Self-Identified List (Cook)
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