05000397/FIN-2013008-07
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Finding | |
|---|---|
| Title | Licensee-Identified Violation |
| Description | Title 10 CFR, Part 50, Appendix B, Criterion III, Design Control, requires in part that measures shall be established to assure that applicable regulatory requirements and the design basis, as defined in 50.2 and as specified in the license application, for those structures, systems, and components to which the appendix applies are correctly translated into specifications, drawings, procedures, and instructions. These measures shall include provisions to assure that appropriate quality standards are specified and included in design documents and that deviations from such standards are controlled. Contrary to this requirement, the licensee failed to establish measures that included provisions to assure that deviations from appropriate quality standards were controlled. Specifically, prior to April 24, 2012, the licensee failed to implement measures to control the seismic design qualification for diesel mixed air temperature indicating switch DMA-TIS-22B. The licensee self-identified this violation and entered it into the corrective action program as CR 262245. The performance deficiency was more than minor because it affected the design control attribute of the mitigating systems cornerstone objective. A senior reactor analyst performed a detailed risk evaluation for this finding. The finding was of very low safety significance (Green) because the bounding change to the core damage frequency was 1.5 x 10-7/year. This finding did not have a significant impact to the large early release frequency. |
| Site: | Columbia  |
|---|---|
| Report | IR 05000397/2013008 Section 4OA7 |
| Date counted | Sep 30, 2013 (2013Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | R Kellar J Groom L Micewski C Hale |
| Violation of: | 10 CFR 50 Appendix B Criterion III, Design Control |
| INPO aspect | |
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Finding - Columbia - IR 05000397/2013008 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Columbia) @ 2013Q3
Self-Identified List (Columbia)
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