05000298/FIN-2009004-02
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Finding | |
|---|---|
| Title | Incorrect Assumptions and Loss of Configuration Control in Internal Flooding Analysis |
| Description | The inspectors identified a Green noncited violation of 10 CFR Part 50, Appendix B, Criterion III, Design Control, regarding the licensees failure to ensure that the design basis of certain structures, systems and components were translated into specifications, drawings, procedures, and instructions. Specifically, licensee personnel failed to ensure that the design basis flooding calculations accurately reflected the configuration of the plant. Additionally, licensee personnel failed to maintain configuration control structures, systems and components that were credited in the design basis flooding calculations. The licensee entered this issue in their corrective action program as Condition Report CR-CNS-2009-05449. The finding is more than minor because it is associated with the design control attribute of the Mitigating Systems Cornerstone, and affected the cornerstone objective of ensuring the availability, reliability, and capability of systems that respond to initiating events. Using the Manual Chapter 0609 Phase 1 screening worksheet, the inspectors determined that the finding has very low safety significance because it did not result in the loss of any system safety function. The cause of this finding is related to the problem identification and resolution cross cutting component of corrective action because licensee personnel failed to take timely and appropriate corrective action for previously discovered errors in the design basis flooding calculations P.1(d) |
| Site: | Cooper  |
|---|---|
| Report | IR 05000298/2009004 Section 1R06 |
| Date counted | Sep 30, 2009 (2009Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.06 |
| Inspectors (proximate) | N Taylor P Elkmann S Garchow G Miller D Proulx M Chambers |
| CCA | P.3, Resolution |
| INPO aspect | PI.3 |
| ' | |
Finding - Cooper - IR 05000298/2009004 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Cooper) @ 2009Q3
Self-Identified List (Cooper)
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