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The inspectors identified a Green noncited … The inspectors identified a Green noncited violation of 10 CFR Part 50, Appendix B, Criterion V, Instructions, Procedures, and Drawings, for the failure of operations personnel to implement procedures associated with evaluating the impact of degraded or nonconforming conditions on the operability of equipment required by technical specifications. Specifically, between December 2010 and February 2013, the inspectors identified 15 examples of operations personnel failing to follow Procedure SO123-XV-50.CAP-2, SONGS Nuclear Notification Screening, Attachment 3, step 6.2.9, resulting in the failure to complete the immediate operability determination or the immediate functionality assessment as required. This issue has been entered into licensees corrective action program as Nuclear Notification NN 202337603. The inspectors determined that the failure of operations personnel to follow Procedure SO123-XV-50.CAP-2 for screening nuclear notifications was a performance deficiency. The performance deficiency was more than minor, and therefore a finding, because it is associated with the Mitigating Systems Cornerstone attribute for equipment performance and adversely affected the cornerstone objective of ensuring the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. The inspectors determined that Manual Chapter 0609, Appendix G, Shutdown Operations Significance Determination Process, was appropriate based on the plant conditions present when most of the examples of this performance deficiency occurred. The finding did not require a quantitative assessment because adequate mitigating equipment remained available and the finding did not constitute a loss of control, as defined in Appendix G. Therefore, the finding screened as having very low safety significance (Green). This finding had a crosscutting aspect in the area of the human performance decision-making component, because operations personnel used nonconservative assumptions about depth of corrosion and corrosion rates to screen multiple degraded or nonconforming conditions out of the operability determination processt of the operability determination process

Discovered date

23:59:59, 31 March 2013 +

Docket

05000361 + and 05000362 +

Event date

23:59:59, 31 March 2013 +

Finding integer

2 +

Finding type

Non-cited violation +

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DM.2 +

IP 71111.15, Operability Determinations and Functionality Assessments +

Inspection report

IR 05000361/2013002 +

Inspector

Gerond George +, Ryan Lantz +, J Laughlin +, E Uribe +, C Hale +, S Garchow +, Nick Taylor +, John Reynoso +, Nicholas Hernandez +, Greg Warnick +, Sean Hedger +, Mike Williams + and Benjamin Parks +

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>.

00:48:20, 21 February 2018 +

Person