05000259/FIN-2013003-01
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Finding | |
|---|---|
| Title | Failure to Implement Preventive Maintenance Program |
| Description | A self-revealing non-cited violation (NCV) of Technical Specifications 3.5.1, Emergency Core Cooling Systems (ECCS) and Reactor Core Isolation Cooling (RCIC) System was identified associated with the licensees failure to perform a post maintenance test (PMT) as required by licensee procedure NPG-SPP-06.3, Pre-/Post Maintenance Testing. Specifically, the licensee failed to perform a PMT to verify the proper operation of the 2E RMOV Board alternate feeder breaker on July 10, 2012. The licensee entered this issue as an immediate corrective action into their corrective action program and the failed alternate feeder breaker to the Unit 2 2E 480V RMOV Board trip pushbutton was restored to the proper condition on July 19, 2012, at 0303. This finding was more than minor because it is associated with the Equipment Performance attribute of the Mitigating Systems cornerstone and adversely affected the cornerstone objective to ensure availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences (i.e. core damage). Specifically, the Unit 2, 2E 480V RMOV Board alternate feeder breaker was left in a tripped condition and unable to close for nine days. The issue was screened per IMC 0609, Appendix A, Exhibit 2 Mitigating Systems Screening Questions, and was determined to be a Green finding because it did not represent an actual loss of function of one or more non-technical specification trains of equipment designated as high safety-significant in accordance with the licensees maintenance rule program for greater than 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. The cause of this finding was associated with the Human Performance area, Work Practices component, cross-cutting aspect of appropriate oversight of work activities because maintenance work activities for the alternate feeder breaker for the 2E 480V RMOV board did not include a check to ensure the breakers nuclear safety function was supported. |
| Site: | Browns Ferry  |
|---|---|
| Report | IR 05000259/2013003 Section 4OA3 |
| Date counted | Jun 30, 2013 (2013Q2) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71153 |
| Inspectors (proximate) | A Sengupta C Stancil D Dumbacher J Montgomery J Rivera K Miller L Pressley M Riches P Niebaum R Hamilton R Kellner S Shaeffer T Stephen |
| Violation of: | Technical Specification - Procedures Technical Specification |
| CCA | H.5, Work Management |
| INPO aspect | WP.1 |
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Finding - Browns Ferry - IR 05000259/2013003 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Browns Ferry) @ 2013Q2
Self-Identified List (Browns Ferry)
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