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The team identified an apparent violation … The team identified an apparent violation of 10 CFR Part 50, Appendix B, Criterion V, for the licensees failure to prescribe adequate procedures for maintenance and testing on containment spray header isolation Valve HCV-345 which led to exceeding a Technical Specification allowed outage time. This issue was self revealed on September 13, 2006, when reactor coolant water issued from the containment spray header indicating that either Valve HCV-344 or Valve HCV-345 was not properly seated. The failure to perform adequate maintenance and testing for this component resulted in one train of containment spray being inoperable from May 11, 2005 to September 9, 2006, a period of 454-days. This exceeded the Technical Specification 2.4(2) allowed outage time of 24 hours when the reactor is critical. The issue was more than minor because it affected the equipment performance attribute of the Mitigating System Cornerstone due to the impact on availability and reliability of the containment spray system. The finding was preliminarily characterized under the significance determination process as having low to moderate safety significance (White) because one train of containment spray was left in a condition contrary to its design and may have represented a bypass flow path from the reactor coolant system during an accident condition. This condition was entered into the Omaha Public Power Districts corrective action program as Condition Report 200604627. Valve HCV-345 was repaired by the licensee and is no longer safety concern. The finding has a crosscutting aspect in the area of human performance, specifically resources, in that complete and accurate procedures and work packages were not providededures and work packages were not provided +
23:59:59, 31 March 2007 +
23:59:59, 31 March 2007 +
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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K Fuller +, L Willoughby +, A Howell +, D Chamberlain +, R Bywatera +, Vegelj Hanna +, Mark Haire + and Jefferson Clark +
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>.
00:32:06, 21 February 2018 +
K Fuller +, L Willoughby +, A Howell +, D Chamberlain +, R Bywatera +, Vegelj Hanna +, Mark Haire + and Jefferson Clark +
23:59:59, 31 March 2007 +
Violation of 10 CFR Part 50, Appendix B, Criterion V, Instructions, Procedures and Drawings, for Failure to Prescribe Adequate Procedures Maintenance and Testing +