05000424/FIN-2010005-01
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Finding | |
|---|---|
| Title | Failure to Utilize the Corrective Action Program to Identify a Condition Adverse to Quality |
| Description | An NRC identified non-cited violation (NCV) of 10 CFR Part 50, Appendix B, Criterion XVI, Corrective Action, was identified for the failure of the licensee to identify within their CAP to correct a condition adverse to quality. Plant personnel had knowledge of 480V ABB EMAX circuit breaker failures caused by the upper right hand screw holding down the front cover of the circuit breaker contacting the breakers closing mechanism, preventing the breaker from closing. The failure to identify and correct the cause of the breaker failures resulted in Containment Cooler Fan #8 being inoperable when the fans breaker failed to close. The licensee wrote a Condition Report (CR 2010113375) on the Containment Cooler Fan breaker. Corrective actions included a temporary modification to remove the upper right hand screw from all of the 1E 480V ABB EMAX circuit breakers. The licensee further plans to restore the breakers to their original configuration with new shorter screws and apply a maximum torque value for the screws. The finding is more than minor because it had a direct impact on the Containment Cooler breakers ability to perform its safety related function; resulted in containment cooling train B being inoperable for 22 hours2.546296e-4 days <br />0.00611 hours <br />3.637566e-5 weeks <br />8.371e-6 months <br />. The finding affected the Barrier Integrity Cornerstone due to reduced containment heat removal capability with a containment cooler inoperable. The finding was determined to be of very low safety significance (Green) because the loss of the cooler did not meet the criteria identified in IMC 609.04, Phase 1 - Initial Screening and Characterization of Findings, for the containment barrier which would result in the finding being greater than green. The finding is indicative of current licensee performance and the cause of the finding was related to the Corrective Action Program component of the Problem Identification and Resolution cross-cutting area. Specifically, the licensee does not implement a corrective action program with a low threshold for identifying issues. The licensee did not identify the 480V ABB breaker issues completely, accurately, and in a timely manner commensurate with their safety significance. |
| Site: | Vogtle  |
|---|---|
| Report | IR 05000424/2010005 Section 4OA2 |
| Date counted | Dec 31, 2010 (2010Q4) |
| Type: | NCV: Green |
| cornerstone | Barrier Integrity |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71152 |
| Inspectors (proximate) | S Shaeffer M Cain B Caballero T Chandler R Williams W Russell |
| CCA | P.1, Identification |
| INPO aspect | PI.1 |
| ' | |
Finding - Vogtle - IR 05000424/2010005 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Vogtle) @ 2010Q4
Self-Identified List (Vogtle)
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