05000361/FIN-2011004-05
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Finding | |
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Title | Licensee-Identified Violation |
Description | Title 10 CFR 50.65(a)(4), states in part, that before performing maintenance activities, the licensee shall access and manage the increase in risk that may result from the proposed maintenance activities. Contrary to the above, on July 13, 2011, the licensee determined that the station had failed to include the out of service non-1E switchgear room cooling fans in the Safety Monitor risk modeling program prior to performing maintenance activities, which by licensee Procedure SO23-XX-10 Maintenance Rule Risk Management Program Implementation, Revision 8, would require the licensee to implement risk management actions. Using Inspection Manual Chapter 0609, Appendix K, Maintenance Risk Assessment and Risk Management Significance Determination Process flowchart 1, Assessment of Risk Deficit, the finding is determined to be of very low safety significance because it only involved risk management actions. The issue was entered into the licensee's corrective action program as Nuclear Notification NN 201558255. |
Site: | San Onofre |
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Report | IR 05000361/2011004 Section 4OA7 |
Date counted | Sep 30, 2011 (2011Q3) |
Type: | NCV: Green |
cornerstone | Mitigating Systems |
Identified by: | Licensee-identified |
Inspection Procedure: | |
Inspectors (proximate) | R Lantz J Reynoso G Warnick E Ruesch S Achen |
INPO aspect | |
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Finding - San Onofre - IR 05000361/2011004 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (San Onofre) @ 2011Q3
Self-Identified List (San Onofre)
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