05000346/FIN-2012005-03
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Finding | |
|---|---|
| Title | Licensee-Identified Violation |
| Description | Appendix B of 10 CFR Part 50, Criterion III, Design Control, requires, in part, that measures shall be established to assure that applicable regulatory requirements and the design basis are correctly translated into specifications, drawings, procedures, and instructions. Contrary to this, on October 17, 2012, the licensee identified the requirements associated with dynamic loading contained in the original construction code of the CS ring header were not incorporated into the specifications of the system and initiated CR 2012-16439. Specifically, the licensee failed to determine the resultant dynamic loads introduced on CS ring header upon system actuation. The performance deficiency was determined to be more than minor because it was associated with the Containment Barrier cornerstone attribute of structures, systems, components, and barrier performance and affected the cornerstone objective of providing reasonable assurance that physical design barriers protect the public from radionuclide releases caused by accidents or events. The finding screened as of very low safety significance because the dynamic loading was verified to be within the capability of the piping design. |
| Site: | Davis Besse  |
|---|---|
| Report | IR 05000346/2012005 Section 4OA7 |
| Date counted | Dec 31, 2012 (2012Q4) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | A Dunlop A Wilson D Kimble D Reeser J Cameron J Laughlin L Jones M Phalen P Smagacz R Walton T Briley |
| INPO aspect | |
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Finding - Davis Besse - IR 05000346/2012005 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Davis Besse) @ 2012Q4
Self-Identified List (Davis Besse)
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