05000285/FIN-2010007-01
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Finding | |
|---|---|
| Title | Failure to Maintain External Flood Procedures |
| Description | The inspectors identified an apparent violation of Technical Specification 5.8.1.a, Procedures, or failure to establish and maintain procedures that protect the intake structure and auxiliary building during external flooding events. The inspectors determined that the procedural guidance of GMRR- AE-1002,Flood Control Preparedness for Sandbagging, as inadequate because stacking and draping sandbags at a height of four feet over the top of floodgates would be insufficient to protect the vital facilities to 1014 feet mean sea level, as described in the Updated Safety Analysis Report and station procedures. The licensee has entered this condition into their corrective action program as Condition Report 2010-2387. As result of this violation, the licensee has implemented a corrective action plan to correct identified deficiencies and ensure site readiness. This performance deficiency is more than minor because it adversely affected the Mitigating Systems Cornerstone attribute of external events and affected the cornerstone objective of ensuring the availability and reliability of systems that respond to initiating events to prevent undesirable consequences. The inspectors determined the finding resulted in the degradation of equipment and functions specifically designed to mitigate a flooding initiating event. In addition, an external flood event would degrade two or more trains of a multi-train safety system. Therefore, the finding was potentially risk significant to flood initiators and a Phase 3 analysis was required. The preliminary change in core damage frequency was calculated to be 3.1 E-5/year indicating that the finding was of substantial safety significance (Yellow). The finding was determined to have a crosscutting aspect in the area of problem identification and resolution, corrective action program, for failure to take appropriate corrective actions to address safety issues and adverse trends in a timely manner, commensurate with their safety significance and compleXity. Specifically, from 2003 to 2008, the licensee failed to initiate appropriate corrective actions to ensure regulatory compiiance of the external flooding design basis was maintained. [P.1 (d)] (Section 40A5.1) |
| Site: | Fort Calhoun  |
|---|---|
| Report | IR 05000285/2010007 Section 4OA5 |
| Date counted | Jun 30, 2010 (2010Q2) |
| Type: | Violation: Yellow |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | |
| Inspectors (proximate) | D Kern D Stearns G Apger G Ryan J Dean J Drake J Kirkland J Wingebach M Hay P Elkmann R Deese S Sanchez W Sifre B Larson C Norton C Zoiad Lovelessg George G Replogle J Kirkland M Williams T Farnholtz |
| CCA | P.3, Resolution |
| INPO aspect | PI.3 |
| ' | |
Finding - Fort Calhoun - IR 05000285/2010007 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Fort Calhoun) @ 2010Q2
Self-Identified List (Fort Calhoun)
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