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The inspectors identified a finding of ver … The inspectors identified a finding of very low safety significance for the licensees failure to follow procedure ERAA2001001, Equipment Classification, Revision 3. Specifically, three non-safety related 4160 volt to 480 volt transformers were not properly classified as operationally critical components. The licensee entered this issue into its CAP as AR 04086449. As corrective actions, the licensee corrected the criticality classifications </br>3 for 0AP44E 480 VAC Auxiliary Transformer D, 0AP92E 480 VAC Auxiliary Transformer P, and 1AP18E2 480 VAC Auxiliary Transformer 1H. Additionally, the licensee planned to perform a work group evaluation to document the extent of condition to ensure that all dry type transformers onsite have the correct criticality classification. The performance deficiency was determined to be more than minor, because it was associated with the Initiating Events Cornerstone attribute of Equipment Performance and adversely affected the cornerstone objective of limiting the likelihood of events that upset plant stability and challenge critical safety functions during shutdown as well as power operations. Specifically, the performance of the transformers listed above was not fully evaluated as required by the preventive maintenance program to ensure the likelihood of failure was limited. The inspectors determined this finding was of very low safety significance because although the performance deficiency resulted in a preventive maintenance strategy that may have resulted in lower reliability of the respective 480 volt auxiliary transformers, it would not have resulted in the loss of mitigation equipment relied upon to transition the plant from the onset of the scram to a stable shutdown condition. The inspectors determined this finding affected the cross-cutting area of Human Performance in the aspect of Consistent Process where individuals use a consistent systematic approach to make decisions and risk insights are incorporated as appropriate. Specifically, the licensee failed to use a consistent classification process to reach the conclusion that the 480 VAC auxiliary transformers 0AP44E, 0AP92E, 1AP18E2 were properly classified as operationally critical components. (H.13)operationally critical components. (H.13)
23:59:59, 31 December 2017 +
23:59:59, 31 December 2017 +
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>.
23:53:28, 20 February 2018 +
J Mcghee + and Charles Phillips +
23:59:59, 31 December 2017 +