Browse wiki
Jump to navigation
Jump to search
A finding of very low safety significance … A finding of very low safety significance and an associated NCV of 10 CFR 50.65, Requirements for Monitoring the Effectiveness of Maintenance at Nuclear Power Plants, was identified by the inspectors when licensee personnel removed both the 2B and 2D Reactor Containment Fan Coolers (RCFCs) from service without entering an elevated on-line risk status (Yellow) as required by licensee procedure WC-BY-101- 1006, On-Line Risk Management and Assessment. The licensee entered this issue into their Corrective Action Program (CAP) as Issue Report (IR) 01519964, 2B and 2D RCFC OLR (On-Line Risk) Not Communicated. As part of the licensees corrective actions, on-line risk was revised to accurately reflect the removal of the 2B and 2D RCFCs from service. The inspectors determined that the performance deficiency was more than minor because it was similar to IMC 0612, Appendix E, Examples of Minor Issues, Example 7(e) that identified a failure to perform an adequate risk assessment when required by 10 CFR 50.65(a)(4) was not minor if the overall elevated plant risk placed the plant into a higher risk category established by the licensee. The inspectors determined the finding could be evaluated using the Significance Determination Process (SDP) in accordance with IMC 0609, Appendix K, Maintenance Risk Assessment and Risk Management Significance Determination Process. In accordance with IMC 0609, Appendix K, and because the calculated Incremental Core Damage Probability Deficit (ICDPD) was not greater than 1E-6, the finding was determined to be of very low safety significance. This finding had a cross-cutting aspect in the Work Control component of the Human Performance cross-cutting area because coordination efforts between the departments responsible for evaluating and communicating on-line risk failed to identify and communicate a risk increase associated with maintenance on the 2B and 2D RCFCs.d with maintenance on the 2B and 2D RCFCs. +
23:59:59, 30 June 2013 +
23:59:59, 30 June 2013 +
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>.
05000454/FIN-2013003-01 +, 05000454/FIN-2013003-01 +, 05000454/FIN-2013003-01 +, 05000454/FIN-2013003-01 +, 05000454/FIN-2013003-01 +, 05000454/FIN-2013003-01 +, 05000454/FIN-2013003-01 +, 05000454/FIN-2013003-01 +, 05000454/FIN-2013003-01 +, 05000454/FIN-2013003-01 +, 05000454/FIN-2013003-01 +, 05000454/FIN-2013003-01 +, 05000454/FIN-2013003-01 +, 05000454/FIN-2013003-01 +, 05000454/FIN-2013003-01 +, 05000454/FIN-2013003-01 +, 05000454/FIN-2013003-01 +, 05000454/FIN-2013003-01 +, 05000454/FIN-2013003-01 +, 05000454/FIN-2013003-01 +, 05000454/FIN-2013003-01 +, 05000454/FIN-2013003-01 +, 05000454/FIN-2013003-01 +, 05000454/FIN-2013003-01 +, 05000454/FIN-2013003-01 +, 05000454/FIN-2013003-01 +, 05000454/FIN-2013003-01 +, 05000454/FIN-2013003-01 +, 05000454/FIN-2013003-01 +, 05000454/FIN-2013003-01 +...
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>.
03:47:41, 28 September 2017 +
23:59:59, 30 June 2013 +