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The inspectors identified a finding and an … The inspectors identified a finding and an associated NCV of 10 CFR Part 50, Appendix B, Criteria V, Instructions, Procedures, and Drawings, having very low safety significance during drywell closeout inspections. Specifically, during the performance of the NRC final drywell closeout, the inspectors noted that foreign material/housekeeping socks had not been removed from the drywell floor drains. This issue could have resulted in the drywell leak detection system being inoperable following a reactor event. The licensee procedures for drywell closeout directed licensee staff to remove all loose material and devices associated with the licensee material condition and housekeeping program. The licensees corrective actions for this issue included removing the floor drain socks and incorporating a work activities item for sock removal in the outage schedule template. The inspectors determined that this issue was more than minor because, if left uncorrected, it could result in a more significant safety concern. Failure to remove drain socks from drywell floor drains could result in the inability to readily detect and track unidentified leakage following a reactor event. The finding was of very low safety significance because this finding did not result in exceeding the Technical Specification limit for reactor coolant system (RCS) leakage nor did it affect other mitigating systems resulting in a total loss of their safety function. The inspectors also concluded that this issue was a result of no work item in the outage schedule to remove the socks, and therefore represented a cross-cutting issue in the area of Human Performance, Work Control (H.3.(b)) Human Performance, Work Control (H.3.(b)) +
23:59:59, 31 March 2008 +
23:59:59, 31 March 2008 +
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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David Jones +, J Cassidy +, S Mischke +, R Jickling +, M Ring +, R Russell +, Billy Dickson +, Vijay Meghani +, James Neurauter +, Matthew Mitchell + and Doug Tharp +
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>.
03:04:32, 30 May 2018 +
David Jones +, J Cassidy +, S Mischke +, R Jickling +, M Ring +, R Russell +, Billy Dickson +, Vijay Meghani +, James Neurauter +, Matthew Mitchell + and Doug Tharp +
23:59:59, 31 March 2008 +
During the Performance of NRC Final Drywell Closeout, the Inspectors Noted That Foreign Material/Housekeeping Sock Had Not Been Removed from the Drywell Floor Drains +