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A finding of very low safety significance … A finding of very low safety significance was self-revealed for the failure to implement procedures for using mobile cranes and the failure to use human error prevention tools. Consequently, a mobile crane boom contacted and severed the middle phase of an overhead 12 kilovolt line in the owner controlled area W yard. This caused a loss of power to the fire pump house, which rendered the electric fire pump inoperable. This finding was entered into the licensees corrective action program as Action Request (AR) 00860140. No violation of NRC requirements occurred. This finding was more than minor because it was related to the external factors attribute (fire) of the Mitigating Systems cornerstone and adversely affected the cornerstone objective to ensure the availability of systems that respond to initiating events. Specifically, the electric fire pump was rendered inoperable and unavailable when power was lost to the fire pump house, which degraded the fire protection defense-in-depth strategies. The finding was of very low safety significance because the fire protection system performance was not affected in that both diesel-driven fire pumps were operable. This finding was associated with a cross cutting aspect in the area of human performance work practices (H.4(c))human performance work practices (H.4(c)) +
23:59:59, 31 March 2010 +
23:59:59, 31 March 2010 +
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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Jamnes Cameron +, J Jandovitz +, D Mcneil +, J Lennartz +, Mel Holmberg +, Atif Shaikh +, Chuck Zoia +, Tony Go +, Paul Laflamme +, Thomas Briley + and Matthew Mitchell +
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>.
21:50:09, 8 October 2017 +
Jamnes Cameron +, J Jandovitz +, D Mcneil +, J Lennartz +, Mel Holmberg +, Atif Shaikh +, Chuck Zoia +, Tony Go +, Paul Laflamme +, Thomas Briley + and Matthew Mitchell +
23:59:59, 31 March 2010 +