05000397/FIN-2013010-05
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Finding | |
|---|---|
| Title | Failure to Comply with Plant Technical Specifications for Control Room Air Conditioning System |
| Description | The inspectors identified a non-cited violation of Technical Specification 3.7.4, Control Room Air Conditioning (AC) System, involving the licensees failure to adequately test and maintain the control room heating, ventilation, and air conditioning (HVAC) system. The licensee entered this issue into their corrective action program as Action Request AR 279768279768 The performance deficiency was more than minor because it affected the equipment performance attribute of the Mitigating System Cornerstone objective and adversely affected the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. The inspectors performed the initial significance determination for the failure of the Division 1 control room air conditioning unit using NRC Inspection Manual Chapter 0609, Appendix A, Exhibit 2, Mitigating Systems Screening Questions. The inspectors determined that the ventilation fan remained functional and capable of performing the probabilistic risk assessment function for at least 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. Therefore the finding is of very low safety significance (Green). This finding had a cross-cutting aspect in the area of problem identification and resolution associated with the corrective action program component because the licensee failed to thoroughly evaluate problems such that the resolutions address causes and extent of conditions, as necessary. Specifically, the licensee failed to fully evaluate the existence of degraded sacrificial anodes in safety-related room coolers such that corrective actions to address these issues were implemented in a timely manner, commensurate with their significance. |
| Site: | Columbia  |
|---|---|
| Report | IR 05000397/2013010 Section 4OA5 |
| Date counted | Dec 31, 2013 (2013Q4) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 93812 |
| Inspectors (proximate) | G Replogle J Groom R Lantz |
| Violation of: | Technical Specification |
| CCA | P.2, Evaluation |
| INPO aspect | PI.2 |
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Finding - Columbia - IR 05000397/2013010 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Columbia) @ 2013Q4
Self-Identified List (Columbia)
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