05000458/FIN-2011006-01
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Finding | |
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Title | Failure to Take Corrective Action for Service-Induced Failures of Gould J-series Relays |
Description | The inspectors reviewed a self-revealing green noncited violation of 10 CFR 50, Appendix B, Criterion XVI, Corrective Actions, for the licensee\\\'s failure to take corrective action to address service-induced failures of Gould J-series relays. In response, the licensee initiated condition report CR-RBS-2010-06032 to ensure that appropriate levels of preventive maintenance are performed on high-critical components. The performance deficiency was the licensee\\\'s failure to take adequate corrective actions to address service-induced faiiures of the high-critical, highduty- cycle Gould J-series relay designated as EHS-MCC16B6D-33X1. This performance deficiency was determined to be more than minor and was therefore a finding because it impacted the Mitigating Systems Cornerstone attribute of equipment performance and affected the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. This finding had very iow safety significance because the finding was not a design or qualification deficiency confirmed not to result in a loss of operability, did not represent a loss of system safety function, did not represent a loss of safety function for a single train for greater than its technical specification allowed outage time, and did not screen as potentially risk significant due to a seismic, flooding or severe weather initiating event. Because the apparent cause of this finding was the licensee\\\'s misclassification of the failed relay within the preventive maintenance optimization program in 2008, and because the licensee\\\'s performance in that program was not reflective of current licensee performance, no cross-cutting aspect was assigned to this finding. |
Site: | River Bend |
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Report | IR 05000458/2011006 Section 4OA2 |
Date counted | Jun 30, 2011 (2011Q2) |
Type: | NCV: Green |
cornerstone | Mitigating Systems |
Identified by: | Self-revealing |
Inspection Procedure: | IP 71152 |
Inspectors (proximate) | A Barrett R Hagar G Apger J Groom |
INPO aspect | |
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Finding - River Bend - IR 05000458/2011006 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (River Bend) @ 2011Q2
Self-Identified List (River Bend)
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