05000373/FIN-2013003-01
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Finding | |
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| Title | Failure to Perform a Required Risk Assessment Following a Failed RCIC Surveillance |
| Description | A finding of very low safety significance and associated non-cited violation of 10 CFR 50.65, Requirements for Monitoring the Effectiveness of Maintenance at Nuclear Power Plants, section (a)(4), was identified by inspectors for the licensees failure to perform an adequate risk assessment after a Unit 1 reactor core isolation cooling (RCIC) system surveillance test failed. Specifically, the licensee failed to declare the RCIC system unavailable when its high flow isolation switch failed to reset. As a result, for approximately 98 minutes, risk was maintained as green when it should have been yellow, which would have required additional risk management actions. The licensee entered this issue into its corrective action program (CAP). The performance deficiency was determined to be more than minor because it was associated with the Mitigating Systems Cornerstone attribute of Equipment Performance and adversely affected the cornerstone objective of ensuring the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. The inspectors performed a Phase 1 screening with assistance from the Regional Senior Reactor Analyst using IMC 0609, Appendix K, Maintenance Risk Assessment and Risk Management Significance Determination Process, Flowchart 1, Assessment of Risk Deficit. The finding screened as Green. This finding has a crosscutting aspect in the area of Human Performance, Work Control, because the licensee failed to appropriately plan the work activity by incorporating risk insights which resulted in the licensees failure to declare the RCIC system unavailable and change online risk to yellow. |
| Site: | LaSalle  |
|---|---|
| Report | IR 05000373/2013003 Section 1R13 |
| Date counted | Jun 30, 2013 (2013Q2) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.13 |
| Inspectors (proximate) | M Kunowski T Go M Learn R Edwards K Carrington M Ziolkowski R Jickling R Ruiz F Ramirez C Phillips |
| Violation of: | 10 CFR 50.65 |
| CCA | H.5, Work Management |
| INPO aspect | WP.1 |
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Finding - LaSalle - IR 05000373/2013003 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (LaSalle) @ 2013Q2
Self-Identified List (LaSalle)
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