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The inspectors identified a Green NCV of 1 … The inspectors identified a Green NCV of 10 CFR 50, Appendix B, Criterion XVl, corrective Action, for Dominion\'s failure to take timely corrective action to address repetitive out of calibration conditions associated with safety-related 120 VAC Unit 2 inverters. To date, Dominion has taken corrective action to adjust the over-frequency and under-frequency transfer limits (CR426589). The inspectors determined the finding was more than minor because it is similar to the more than minor Example \'4f\' of NRC lnspection Manual Chapter (lMC) 0612, Appendix E, Examples of Minor issues. Additionally, the issue is more than minor because the performance deficiency can be reasonably viewed as a precursor to a significant event; in that, the history of over- and under-frequency limits drifting out of tolerance could lead to the unavailability of safety-related equipment powered from the inverters. The inspectors conducted a Phase 1 screening in accordance with NRC IMC Attachment 0609.04, Phase 1 - lnitial Screening and Characterization of Findings, and determined that the finding was of very low safety significance (Green) because it was not a design or qualification deficiency, did not represent a loss of system safety function, did not represent an actual loss of safety function of a single train, and did not screen as potentially risk significant due to a seismic, flooding, or severe weather initiating event. The inspectors determined that this finding had a cross-cutting aspect in the Problem ldentification and Resolution cross-cutting area, Corrective Action Program component, because Dominion did not take appropriate corrective action in a timely manner to address the repetitive out of calibration conditions with the 120 VAC safety related inverters.with the 120 VAC safety related inverters. +
23:59:59, 30 June 2011 +
23:59:59, 30 June 2011 +
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>.
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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>.
00:42:36, 21 February 2018 +
23:59:59, 30 June 2011 +