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The inspectors identified a non-cited viol … The inspectors identified a non-cited violation of 10 CFR Part 50, Appendix B, Criterion III, Design Control, for the failure to analyze a moderate energy fluid system for leakage cracks resulting in flooding and/or spray as described in the licensees Facility Safety Analysis Report (FSAR). Specifically, chilled water piping, located in a fan room located above and with access to the safety-related 1DB switchgear room, was not analyzed for leakage cracks. This issue was entered into the licensees corrective action program as condition report, CR-12-00844. The inspectors determined that the failure to analyze a moderate energy fluid system for leakage cracks as described in the FSAR was a performance deficiency (PD). The inspectors also reviewed Inspection Manual Chapter (IMC) 0612, Appendix B and determined the PD is more than minor and therefore a finding, because (1) it was similar to IMC 0612, Appendix E, Example 3i, in that the licensee had to perform calculations to show that design basis requirements were met, and (2) it adversely affected the Mitigating Systems cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences and the respective attribute of design control because the licensee failed to analyze a chilled water pipe which presented a vulnerability to a safetyrelated motor control center that was not designed for water spray. The inspectors reviewed IMC 0609, Attachment 4, and determined that the finding was of very low safety significance, or Green, because the finding was a design or qualification deficiency confirmed not to result in loss of operability or functionality. The cause of this finding did not involve a cross-cutting aspect because it is not indicative of current licensee performance.ndicative of current licensee performance. +
23:59:59, 31 March 2012 +
23:59:59, 31 March 2012 +
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19:06:35, 30 September 2017 +
23:59:59, 31 March 2012 +