05000395/FIN-2013002-02
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Finding | |
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Title | Licensee-Identified Violation |
Description | 10 CFR 50, Appendix B, Criterion XVI, Corrective Action, states in part that measures shall be established to assure that conditions adverse to quality (CAQ) are promptly identified and corrected. Contrary to the above, on August 26, 2012, the licensee returned the A EDG to service, but failed to promptly identify and correct a CAQ involving an intermittent problem with the A EDGs exciter circuit, where the exciter would fail to energize if the K1 relay did not reset properly. Additionally, on September 19, 2012, the A EDGs exciter failed to start a second time due to the K1 relay failing to properly reset. This PD is more than minor and therefore a finding because it impacted the mitigating systems cornerstone objective to ensure the reliability and capability of systems which respond to initiating events and the related attribute of equipment performance because the reliability of the EDG was adversely affected by failure of the K1 relay. This finding is of very low safety significance, Green, because the K1 relay failures did not represent a loss of safety function of a single train for greater than the TS allowed outage time. The K1 relays for both EDGs have been replaced. This issue has been entered into the licensees CAP under CR-12-03998. |
Site: | Summer |
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Report | IR 05000395/2013002 Section 4OA7 |
Date counted | Mar 31, 2013 (2013Q1) |
Type: | NCV: Green |
cornerstone | Mitigating Systems |
Identified by: | Licensee-identified |
Inspection Procedure: | |
Inspectors (proximate) | J Reece G Mccoy M Coursey C Fletcher E Coffman R Williams |
Violation of: | 10 CFR 50 Appendix B Criterion XVI Technical Specification |
INPO aspect | |
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Finding - Summer - IR 05000395/2013002 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Summer) @ 2013Q1
Self-Identified List (Summer)
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