05000373/FIN-2014002-02
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Finding | |
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| Title | Failure to Follow the Drywell Closeout Procedure when Declaring Primary Containment Ready for Power Operations |
| Description | The inspectors identified a finding of very low safety significance (Green) and associated non-cited violation of 10 CFR Part 50, Appendix B, Criterion V, Instructions, Procedures and Drawings, for the licensees failure to conduct primary containment (drywell) closeout activities in accordance with site procedures. Specifically, during the NRCs drywell closeout inspection, the inspectors identified that the licensee had not secured the reactor shield steel doors around three of the six feedwater system penetrations into the reactor vessel (RV). As a result, the steel doors design function to resist transient pressure loadings within the shield annulus would have been impacted. Licensee corrective actions included securing the reactor shield doors prior to power operation and placing the issue into the corrective action program (CAP). The finding was determined to be more than minor because it was associated with the equipment performance attribute of the Mitigating Systems Cornerstone, and affected the cornerstone objective to ensure availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. The finding was determined to be of very low safety significance (Green) because the inspectors qualitatively determined that the finding involved adequate mitigation capability and was not an event that could be characterized as a loss of control. This finding had a cross-cutting aspect in the area of Human Performance, Work Management, because the licensee did not implement a process for controlling and executing work activities such that nuclear safety was the overriding priority (H.5). Specifically, the licensees process did not ensure that the reactor shield was intact prior to the completion of the drywell closeout procedure. |
| Site: | LaSalle  |
|---|---|
| Report | IR 05000373/2014002 Section 1R20 |
| Date counted | Mar 31, 2014 (2014Q1) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.2 |
| Inspectors (proximate) | R Schulz F Ramirez J Beavers J Cassidy M Holmberg M Kunowski R Ruiz |
| Violation of: | 10 CFR 50 Appendix B Criterion V |
| CCA | , |
| INPO aspect | WP.1, WP.1 |
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Finding - LaSalle - IR 05000373/2014002 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (LaSalle) @ 2014Q1
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