05000298/FIN-2008005-01
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Finding | |
|---|---|
| Title | Misaligned Lubricating Oil Piping Causes DG 2 Failure |
| Description | A Green self-revealing noncited violation of 10 CFR Part 50, Appendix B, Criterion XVI, Corrective Action, was identified for the licensees failure to establish measures to assure that long standing diesel generator 2 lubricating oil discharge piping misalignments leading to diesel generator oil leakage were promptly identified and corrected. Previous apparent cause investigations performed in 2002 and 2004 failed to correct the improper piping alignment that subsequently resulted in a fatigue failure crack of the diesel generator 2 main lubricating oil discharge piping February 13, 2008, requiring diesel generator 2 to be secured due to lubricating oil leakage during a surveillance test. This issue was entered into the licensees corrective action program as Condition Report CR-CNS-2008-00968. The licensee has corrected the misalignment issues. This finding is more than minor because it is associated with the equipment performance attribute of the Mitigating Systems cornerstone, and affected the cornerstone objective of ensuring the availability, and reliability of systems required to respond to initiating events. Using Manual Chapter 0609.04, Phase 1 - Initial Screening and Characterization of Findings, the finding was determined to have very low safety significance (Green) because it was not a qualification deficiency, did not represent a loss of safety function, did not represent an actual loss of a single train for greater than its Technical Specification allowed outage time, did not represent a loss of a non-Technical Specification train of equipment for greater than 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, and did not screen as potentially risk significant due to a seismic, flooding, or severe weather initiating event. The cause of the finding is related to the human performance crosscutting component of resources in that the licensee failed to provide complete, accurate and up-to-date procedures and work packages to ensure proper alignment of the diesel generator flexible hose replacements up to the February 13, 2008, lubricating oil leak |
| Site: | Cooper  |
|---|---|
| Report | IR 05000298/2008005 Section 1R12 |
| Date counted | Dec 31, 2008 (2008Q4) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71111.12 |
| Inspectors (proximate) | K Clayton G Guerra N Taylor P Elkmann C Graves S Garchow G Miller M Chambers |
| CCA | H.7, Documentation |
| INPO aspect | WP.3 |
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Finding - Cooper - IR 05000298/2008005 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Cooper) @ 2008Q4
Self-Identified List (Cooper)
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