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10 CFR Part 50, Appendix B, Criterion III, … 10 CFR Part 50, Appendix B, Criterion III, Design Control, required, in part, that measures be established for the selection and review for suitability of application of materials and parts that are essential to the safety -related functions of the structures, systems, and components. Contrary to those requirements, on October 20, 2016, the licensee discovered that an incorrect splice kit for the 1C containment cooler fan was installed on May 4, 2015. The design called for a bolted V splice, but the licensee installed a bolted in- line splice kit that was not suitable for use inside containment in accordance with Environment Qualification Package A -506152- 0029E, Rev. 2. This error resulted in the inoperability of the 1C containment cooler during periods of the Unit 1 operating cycle 27 (May 7, 2015 October 1, 2016). Specifically, there were four periods during applicable modes (modes 1 4) when the 1C containment cooler was the selected cooler for train B for a period greater than seven days, which exceeded the allowed completion time per TS 3.6.6. Upon discovery of the incorrect containment cooler splice kit in -use, the licensee removed and replaced the bolted in- line splice with an approved bolted V splice kit. The repairs were completed and tested on October 25, 2016. The finding was determined to be Green, very low safety significance, because the finding did not represent an actual open pathway in the physical integrity of the reactor containment, nor did it involve an actual reduction in function of the hydrogen igniters using the Barrier Integrity screening questions. The licensee entered this issue into the corrective action program as CRs 10288801 and 10317447ction program as CRs 10288801 and 10317447 +

Discovered date

23:59:59, 31 March 2017 +

Docket

05000348 + and 05000364 +

Event date

23:59:59, 31 March 2017 +

Finding integer

3 +

Finding type

Non-cited violation +

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>.

Identified by

Licensee-identified +

Inspection report

IR 05000348/2017001 +

Inspector

Shane Sandal +, Phil Niebaum + and Keith Miller +

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>.

15:55:54, 30 May 2018 +

Person

Shane Sandal +, Phil Niebaum + and Keith Miller +

2017Q1 +

Green +

Farley +

23:59:59, 31 March 2017 +

TS