05000461/FIN-2013007-01
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Finding | |
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| Title | Failure to Evaluate a Degraded/Non-conforming Condition on Diesel Fire Pump |
| Description | The inspectors identified a finding of very low safety significance associated with the licensees failure to appropriately evaluate the functionality of the B Diesel Fire Pump (DFP) after identifying a degraded/non-conforming crankcase pressure condition while performing testing on June 13, 2011, and on numerous occasions thereafter, that could have affected the ability of the system to perform a function important to safety. An associated NCV of Clinton Power Station License Condition 2.F was identified. The License Condition required the licensee to implement and maintain in effect all provisions of the approved Fire Protection program as described in the Updated Final Safety Analysis Report (UFSAR). Appendix E, Section 4.0.C.8 of the UFSAR stated that the Clinton Power Station Quality Assurance Program establishes measures for corrective action on conditions adverse to fire protection. Quality Assurance Topical Report (QATR), Chapter 16, Section 2.4 stated that personnel performing the evaluation function of conditions adverse to quality are responsible for considering the cause and the feasibility of corrective action to assure that the necessary quality of an item is not deteriorated. The licensee entered the issues into the CAP and initiated corrective actions to evaluate the functionality of the B DFP. The failure to correctly evaluate a degraded/non-conforming condition potentially affecting the functionality of structures, systems, and components (SSCs) important to safety would become a more significant safety concern if left uncorrected because it could reasonably result in an unrecognized condition of an SSC failing to fulfill a function important to safety. In addition, the finding was associated with the Equipment Performance attribute of the Mitigating Systems Cornerstone and adversely affected the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. Specifically, the degraded condition of high crankcase pressure resulted in repeat operational equipment challenges and extended periods of unavailability of the B DFP. Therefore the finding was of more than minor significance. The finding was a licensee performance deficiency of very low safety significance (Green) because it involved only a low degradation of the protection against external factors function due to a redundant train that could supply water. The inspectors concluded that this finding affected the cross-cutting area of problem identification and resolution. Specifically, the licensee failed to thoroughly evaluate problems such that the resolutions addressed causes and extent of condition as necessary for an SSC important to safety when a degraded/non-conforming condition was identified. |
| Site: | Clinton  |
|---|---|
| Report | IR 05000461/2013007 Section 4OA2 |
| Date counted | Sep 30, 2013 (2013Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71152 |
| Inspectors (proximate) | C Lipa C Zoia D Lords L Haeg R Langstaff S Mischke |
| Violation of: | License Condition - Fire Protection License Condition |
| CCA | P.2, Evaluation |
| INPO aspect | PI.2 |
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Finding - Clinton - IR 05000461/2013007 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Clinton) @ 2013Q3
Self-Identified List (Clinton)
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