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A finding of very low safety significance … A finding of very low safety significance and associated NCV of 10 CFR Part 50, Appendix B, Criterion XV, Nonconforming Materials, Parts, or Components, was self-revealed for the licensees failure to establish measures to ensure non-conforming tantalum electrolytic capacitors that were part of an assembly and that were beyond their recommended shelf-life would not be installed in safety-related equipment in the plant. The licensees corrective actions included repair of the D-107 battery charger, and updating maintenance and procurement requirements with component shelf-life information. The inspectors determined the finding was more than minor since the failure to ensure the quality of spare parts, if left uncorrected, could lead to a more significant safety concern. Specifically, the failure to control circuit boards which contained tantalum electrolytic capacitors that were beyond their shelf-life was self-revealed when the D-107 safety-related battery charger failed three days after the circuit boards were installed. The inspectors determined the finding could be evaluated using the SDP in accordance with IMC 0609, Significance Determination Process, Attachment 0609.04, Initial Characterization of Findings, dated June 19, 2012, and Appendix A, The Significance Determination Process for Findings At-Power, Exhibit 2, Mitigating Systems Screening Questions, dated June 19, 2012. The inspectors concluded that the finding was of very low safety significance (Green), because the inspectors answered "No" to the Mitigating Systems screening questions. This finding has a cross-cutting aspect of Change Management (H.3), in the area of Human Performance, for the licensees failure to use a systematic process for implementing changes so that nuclear safety remained the overriding priority.r safety remained the overriding priority. +

Discovered date

23:59:59, 30 June 2015 +

Docket

05000266 + and 05000301 +

Event date

23:59:59, 30 June 2015 +

Finding integer

3 +

Finding type

Non-cited violation +

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INPO aspect

LA.5 +

Identified by

Self-revealing +

Inspection Manual Chapter

NRC Inspection Manual 0609 +

Inspection procedure

IP 71111.12 +

Inspection report

IR 05000266/2015002 +

Inspector

Bruce Bartlett +, Jamnes Cameron +, J Boettcher +, D Oliver +, Kevin Barclay + and Valerie Myers +

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>.

12:59:20, 25 September 2017 +

Person