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The inspectors reviewed a self-revealing f … The inspectors reviewed a self-revealing finding for the failure to follow the design modification process. The licensee implemented a design modification using incorrect technical information. The personnel who conducted the design modification walk-downs did not fully understand their responsibility and the licensees work organization did not ensure that anyone actually verified the physical details of the cable route. As a result, the design modification was inadequate and an incorrect cable was cut which caused a loss of all offsite power to the safety-related 6.9 kV busses on both units. The licensee suspended the modification activities, repaired the damaged offsite power cable, and restored offsite power to the safety-related 6.9 kV busses. The licensee entered the finding into the corrective action program as Condition Report CR-2013-012287. The failure to follow the electronic design change process procedure was a performance deficiency. The performance deficiency was more than minor because it was associated with the human performance attribute of the Initiating Events Cornerstone and adversely affected the cornerstone objective to limit the likelihood of events that upset plant stability and challenge critical safety functions during shutdown as well as power operations. Using Inspection Manual Chapter 0609, Attachment 04, Initial Characterization of Findings, and Appendix A, Exhibit 1, Initiating Event Screening Questions, the finding was determined to be of very low safety significance (Green) because although the finding involved the complete loss of a support system that caused an initiating event, it did not involve the loss of affected mitigation equipment. The finding has a human performance cross-cutting aspect associated with field presence because the licensee failed to ensure proper oversight of contractors to ensure deviations from standards and expectations were promptly corrected (H.2).xpectations were promptly corrected (H.2). +
23:59:59, 30 June 2014 +
23:59:59, 30 June 2014 +
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>.
12:59:08, 25 September 2017 +
23:59:59, 30 June 2014 +