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Title 10 CFR 50.65(a)(2), requires, in par … Title 10 CFR 50.65(a)(2), requires, in part, that monitoring of system performance under 10 CFR 50.65(a)(1) is not required where it has been demonstrated that performance of the system is being effectively controlled through appropriate preventive maintenance. Contrary to the above, from June 2014 to May 2016, the licensee failed to demonstrate that performance of the 480 Volt AC system, a system not being monitored under 10 CFR 50.65(a)(1), was being effectively controlled by preventive maintenance. Specifically, the 480 Volt AC system exceeded the established performance criteria in June 2014, and the licensee failed to evaluate its performance. The licensee discovered in May 2016 through an engineering review that the system had exceeded its criteria in 2014 and should have been placed in (a)(1) monitoring status. The licensee evaluated the system performance and ensured appropriate corrective action had been taken. The violation is more than minor because it affected the equipment performance attribute of the Mitigating Systems cornerstone and impacted the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. Using Inspection Manual Chapter 0609, Attachment 04, Initial Characterization of Findings, and Inspection Manual Chapter 0609, Appendix A, The Significance Determination Process for Findings At-Power, the inspectors determined that the violation is of very low safety significance (Green) because the finding did not represent a loss of system or function, and did not represent a loss of function of a single train for greater than its technical specification allowed outage time. The violation was entered into the licensees corrective action program as CR-2016-009963.rrective action program as CR-2016-009963. +

Discovered date

23:59:59, 31 December 2016 +

Docket

05000445 + and 05000446 +

Event date

23:59:59, 31 December 2016 +

Finding integer

3 +

Finding type

Non-cited violation +

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Identified by

Licensee-identified +

Inspection Manual Chapter

NRC Inspection Manual 0609 + and NRC Inspection Manual 0609/Appendix A, The Significance Determination Process (SDP) for Findings At-Power +

Inspection report

IR 05000445/2016004 +

Inspector

Eric Simpson +, L Brandt +, W Gardner +, Kelly Clayton +, Thomas Farina +, Jeremy Groom +, Jeremy Tapp +, Jeffrey Josey + and Rayo Kumana +

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>.

15:54:57, 30 May 2018 +

Person