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On June 1, 2011, Wolf Creek identified voi … On June 1, 2011, Wolf Creek identified voiding in component cooling water train A when a system engineer was reviewing plant computer data. Testing revealed voiding in both trains of component cooling water and Wolf Creek entered Technical Specification 3.0.3. All the voids were vented. Subsequent engineering evaluation found that both trains were always operable. Wolf Creek root cause found that significant voids were trapped between valves EG HV-15 and EG HV-131, as well as between valves EG HV-16 and EG HV-131 following maintenance and fill and vent Procedure SYS EG-400. These portions of the piping were not recognized as trapping air and were not able to be vented. The inspectors used Inspection Manual Chapter 0609.04, Phase 1 - Initial Screening and Characterization of Findings, a significance determination screening was performed and screened the issue to very low safety significance (Green) because there was no loss of operability or functionality. Technical Specification 5.4.1, Procedures, requires, in part, that written procedures shall be established, implemented, and maintained covering the applicable procedures recommended in Regulatory Guide 1.33, Revision 2, Appendix A, dated February 1978. Regulatory Guide 1.33, Appendix A, Section 3.e, requires, in part, that instructions for filling and venting the component cooling water system should be covered by written procedures. Contrary to the above, from April 30 to June 1, 2011, the licensee failed to provide adequate instructions for filling and venting the component cooling water system. Specifically, station procedures allowed for gas accumulations in the component cooling water system, which affected the proper operation of the pumps during startup. This issue was documented in the licensees corrective action program as Condition Reports 25918 and 33925.gram as Condition Reports 25918 and 33925. +

Discovered date

23:59:59, 30 September 2011 +

Docket

05000482 +

Event date

23:59:59, 30 September 2011 +

Finding integer

7 +

Finding type

Non-cited violation +

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Identified by

Licensee-identified +

Inspection Manual Chapter

NRC Inspection Manual 0609.04 +

Inspection report

IR 05000482/2011004 +

Inspector

Geoffrey Miller +, Nestor Makris +, L Willoughby +, C Long +, J Bashore +, Louis Carson +, Charley Peabody + and Steven Alferink +

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>.

15:43:10, 30 May 2018 +

Person