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A self-revealing non-cited violation of 10 … A self-revealing non-cited violation of 10 CFR Part 50, Appendix B, Criterion XVI, Corrective Action, was identified for untimely corrective action for containment isolation valves (CIVs) which could spuriously open during an event requiring containment isolation. Specifically, the licensee had not completed an extent of condition review, from a previously reported event, to identify other CIVs which could spuriously open. The licensee immediately declared the Unit 1 CIVs inoperable and took actions through plant modifications and procedural alignment changes necessary to restore operability. CIV operability was not required because Unit 2 was in Mode 5, but similar changes were made on Unit 2 CIVs prior to Unit 2 re-entering Mode 4 when CIV operability was required. This finding is more than minor because it affects the availability, reliability, and capability of the containment in that CIVs may not remain closed when required during design basis accidents and is related to the containment isolation attribute of the Barrier Integrity cornerstone. Because the 2008 CIV deficiency revealed itself through a change in functionality of equipment, this issue is considered self-revealing. The violation was determined to be of very low safety significance (Green) in IMC 0609 SDP Phase 1screening based on the penetrations involved closed piping within containment such that even if both the inboard and outboard CIVs were to open, a significant breach in the piping would need to occur to provide a viable release pathway. This finding has a cross-cutting aspect of procedures (H.2(c)) in the Resources component of the Human Performance cross-cutting area because the licensees corrective action program procedures failed to establish timeliness criteria for the reviewsablish timeliness criteria for the reviews +
23:59:59, 30 June 2009 +
23:59:59, 30 June 2009 +
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>.
00:37:30, 21 February 2018 +
23:59:59, 30 June 2009 +