Browse wiki

Jump to navigation Jump to search
Title 10 CFR, Part 50, Appendix B, CriteriTitle 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.pact to the large early release frequency.  +
23:59:59, 30 September 2013  +
05000397  +
23:59:59, 30 September 2013  +
Has query"Has query" is a predefined property that represents meta information (in form of a <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Subobject">subobject</a>) about individual queries and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
Modification date"Modification date" is a predefined property that corresponds to the date of the last modification of a subject and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
15:48:45, 30 May 2018  +
23:59:59, 30 September 2013  +
Licensee-Identified Violation  +