05000285/FIN-2009003-01
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Finding | |
|---|---|
| Title | Failure to Properly Translate Raw Water System Design Basis Requirements |
| Description | The inspectors identified a cited violation of 10 CFR Part 50, Appendix B, Criterion III, for the failure to correctly translate the Fort Calhoun Station raw water strainer components design basis into specifications, procedures, and instructions. The raw water strainers were incorrectly translated as non safety-related in design documents for their function of filtering small debris from the raw water system although the equipment is relied upon for design basis accident mitigation. This violation was identified by the NRC in 2007 and was a continuing violation that was not corrected in a reasonable time. This finding was more than minor because it affected the Mitigating System Cornerstone objective of the design control attribute to ensure the reliability and availability of the raw water system to mitigate initiating events. Using the NRC Manual Chapter 0609, Phase 1 screening worksheet, the issue screened as having very low safety significance because it was a design or qualification deficiency confirmed not to result in a loss of operability per Part 9900, Technical Guidance, Operability Determination Process for Operability and Functional Assessment. The finding had a problem identification and resolution crosscutting aspect (corrective action component) because the licensee failed to take appropriate corrective actions to address the safety issue in a timely manner P.1(d |
| Site: | Fort Calhoun  |
|---|---|
| Report | IR 05000285/2009003 Section 4OA2 |
| Date counted | Jun 30, 2009 (2009Q2) |
| Type: | Violation: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71152 |
| Inspectors (proximate) | J Clark J Hanna J Kirkland P Elkmann W Schaup |
| CCA | P.3, Resolution |
| INPO aspect | PI.3 |
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Finding - Fort Calhoun - IR 05000285/2009003 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Fort Calhoun) @ 2009Q2
Self-Identified List (Fort Calhoun)
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