05000483/FIN-2011007-04
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Finding | |
|---|---|
| Title | Failure to Calculate and Implement Conservative Safety Related Equipment Oil Leakage Operability Criteria |
| Description | The inspectors identified a noncited violation of 10 CFR Part 50, Appendix B, Criterion III, Design Control, for a failure to adequately determine safety related equipment oil leakage acceptance criteria that was used in operator logs. Specifically, the 2008 licensee fluid leak management program calculations to determine the mission time assessments related to oil leak rates of safety related pumps and motors were nonconservative when added to Procedure ODP-ZZ-0016E, Appendix 1, Equipment Operator General Inspection Guide. The licensee evaluated this issue in Callaway Action Request 201102431 and calculated new conservative oil leak rates for the affected equipment. This finding is more than minor because if left uncorrected it has the potential to lead to a more significant safety concern. Specifically, the failure to adequately evaluate and determine an appropriate lube oil leak rate to maintain safety related equipment operability affects the equipment performance attribute of the Mitigating Systems Cornerstone and could have impacted the availability of mitigating equipment if left uncorrected. The finding was evaluated using Manual Chapter 0609.04, Phase 1 - Initial Screening and Characterization of Findings, and determined to be of very low safety significance since the as-found condition of the safety related equipment reviewed back to August 15, 2007, found no oil leakage rates that would have caused a loss of system safety function. This finding was not reflective of current licensee performance and therefore, has no cross-cutting aspect. |
| Site: | Callaway  |
|---|---|
| Report | IR 05000483/2011007 Section 4OA5 |
| Date counted | Jun 30, 2011 (2011Q2) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 93812 |
| Inspectors (proximate) | G Miller J Polickoski M Runyan M Chambers L Micewski D Dumbacher |
| Violation of: | 10 CFR 50 Appendix B 10 CFR 50 Appendix B Criterion III, Design Control |
| INPO aspect | |
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Finding - Callaway - IR 05000483/2011007 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Callaway) @ 2011Q2
Self-Identified List (Callaway)
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