05000483/FIN-2010005-03
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Finding | |
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| Title | Failure to Enter Condition Adverse to Quality Associated with Emergency Diesel Generator Jacket Water Keep Warm Pump into the Corrective Action Program |
| Description | Green. The inspectors identified a self-revealing noncited violation of 10 CFR Part 50, Appendix B, Criterion V, Instructions, Procedures, and Drawings, for the failure to follow the requirements of Callaway Procedure APA-ZZ-00500, Corrective Action Program, associated with a degraded train B emergency diesel generator jacket water keep warm pump. On November 6, 2010, the supply breaker to the train B emergency diesel generator jacket water keep warm pump tripped unexpectedly causing the engine to become inoperable. During follow-up investigation, the inspectors found that a March 31, 2009 motor circuit evaluation was performed that showed a step decrease in insulation resistance from 10,250 Mega-ohms to 3.5 Mega-ohms. The degradation was at a sufficient rate such that there was a reasonable doubt the motor would continue to be reliable until the next performance of the motor circuit evaluation. The licensee failed to recognize this degradation and, as a result, did not initiate a Callaway action request to evaluate the condition. This issue was entered into the licensees corrective action program as Callaway Action Request 201010654. This finding is greater than minor because if left uncorrected, the failure to fully utilize the corrective action program could become a more significant safety concern. The inspectors determined that this finding impacted the Mitigating Systems cornerstone. Using Manual Chapter 0609.04, Phase 1 Initial Screening and Characterization of Findings, the issue screened as having very low safety significance because it was not a design or qualification deficiency that did not result in a loss of operability or functionality, did not create a loss of system safety function of a single train for greater than the technical specification allowed outage times, and did not affect seismic, flooding, or severe weather initiating events. The inspectors determined that the finding has a crosscutting aspect in the area of problem identification and resolution associated with the corrective action program component because licensee personnel failed to implement the corrective action program with a low threshold for identifying issues. |
| Site: | Callaway  |
|---|---|
| Report | IR 05000483/2010005 Section 4OA2 |
| Date counted | Dec 31, 2010 (2010Q4) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71152 |
| Inspectors (proximate) | L Ricketson D Dumbacher P Elkmann D Allen G Apger J Groom D Graves J Rotton |
| CCA | P.1, Identification |
| INPO aspect | PI.1 |
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Finding - Callaway - IR 05000483/2010005 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Callaway) @ 2010Q4
Self-Identified List (Callaway)
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