05000456/FIN-2008005-03
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Finding | |
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| Title | Inadequate Corrective Action for Failure to Promptly Correct Auxiliary Tunnel Feedwater Tunnel Hatch Cover Design Deficiencies. |
| Description | A finding of very low safety significance and associated NCV of 10 CFR Part 50, Appendix B, Criterion XVI, Corrective Action, was identified by the inspectors for failure to promptly identify and correct the auxiliary feedwater (AFW) tunnel hatch cover design deficiencies. Specifically, upon finding that the design safety factor of the concrete expansion anchor was less than the requirement, the licensee failed to evaluate and correct all deficiencies associated with the design calculation in a timely manner. The licensee entered the issue into their CAP, implemented compensatory measures using temporary modifications, and completed permanent modifications to restore design margins prior to December 31, 2008. The finding was more than minor because it was associated with the Barrier Integrity Cornerstone attribute of systems, structures, and components (SSC) and Barrier Performance (Containment Isolation SSC Reliability) and affected the cornerstone objective of maintaining functionality of containment. The inspectors determined the finding to be of very low safety significance using the SDP Phase 1 screening worksheets, as there was no actual open pathway in the physical integrity of the reactor containment; it did not represent a degradation of the barrier function of the control room, auxiliary building, spent fuel pool and it did not involve an actual reduction in function of the hydrogen igniters. This finding has a cross-cutting aspect in the area of problem identification and resolution because the licensee did not thoroughly evaluate the problem immediately upon identification |
| Site: | Braidwood  |
|---|---|
| Report | IR 05000456/2008005 Section 1R15 |
| Date counted | Dec 31, 2008 (2008Q4) |
| Type: | NCV: Green |
| cornerstone | Barrier Integrity |
| Identified by: | NRC identified |
| 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 Winter |
| CCA | P.2, Evaluation |
| INPO aspect | PI.2 |
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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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