05000456/FIN-2008005-04
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Finding | |
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| Title | Inadequate Corrective Action for Containment Spray Add Tank Drain Valve. |
| Description | A finding of very low safety significance and associated NCV of 10 CFR 50, Appendix B, Criterion XVI, Corrective Action, was self-revealed when leak-by of valve 2CS023 led to a 100 gallon sodium hydroxide (NaOH) spill that leaked into the 2A Residual Heat Removal (RH) pump room and rendered the 2A RH pump unavailable on September 30, 2008. The licensee had failed to take adequate corrective actions to address a previous identified hard-to-close valve 2CS023. The licensee entered this issue into the CAP, cleaned up the spill, and planned to replace the valve. This finding has a cross-cutting aspect in the area of human performance since the operator did not verify the closure of the valve (H.4(a)). The inspectors determined that the failure to properly verify the adequacy of lubricating the 2CS023 valve stem for better valve operation previously was a performance deficiency. The finding was more than minor because it impacted the Mitigating Systems Cornerstone attribute to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. The inspectors performed a Phase 1 SDP review of this finding and determined the issue was of very low safety significance |
| Site: | Braidwood  |
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| Report | IR 05000456/2008005 Section 1R15 |
| Date counted | Dec 31, 2008 (2008Q4) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71111.15 |
| Inspectors (proximate) | A Garmoe B Dickson B Palagi D Mcneil G O 'Dwyer M Holmberg M Perry R Skokowski R Winte |
| CCA | H.12, Avoid Complacency |
| INPO aspect | QA.4 |
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Finding - Braidwood - IR 05000456/2008005 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Braidwood) @ 2008Q4
Self-Identified List (Braidwood)
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