05000440/FIN-2014005-01
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Finding | |
|---|---|
| Title | Unevaluated Preconditioning of Emergency Service Water Motor-Operated Valves and Check Valves Prior to Conducting As-Found Inservice Surveillance Testing |
| Description | The inspectors identified a finding of very low safety significance and associated NCV of 10 CFR Part 50, Appendix B, Criterion XI, Test Control, for the licensees unevaluated preconditioning, on October 15, 2014, of emergency service water (ESW) pump discharge motor-operated valves and check valves prior to performing as-found inservice testing (IST). This finding was entered into the licensees corrective action program for resolution as Condition Report 2014-15759. The unevaluated preconditioning was a performance deficiency that was determined to be more than minor, and thus a finding, because it was associated with the equipment performance attribute of the Mitigating Systems Cornerstone, and adversely affected the associated cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. Specifically, unevaluated preconditioning of valves could mask their actual as-found conditions and result in an inability to verify their operability, as well as make it difficult to determine whether the valves would perform their intended safety function during an event. The inspectors determined that the finding was of very low safety significance because the finding was confirmed not to result in a loss of operability or functionality of the ESW system. The finding has a cross-cutting aspect in the area of human performance associated with the work management component because the licensee did not implement a process of planning, controlling, and executing work activities to prevent preconditioning of valves prior to testing. |
| Site: | Perry  |
|---|---|
| Report | IR 05000440/2014005 Section 1R22 |
| Date counted | Dec 31, 2014 (2014Q4) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.22 |
| Inspectors (proximate) | D Reeser J Beavers J Nance M Kunowski M Marshfield R Edwards B Palagi |
| Violation of: | 10 CFR 50 Appendix B Criterion XI |
| CCA | H.5, Work Management |
| INPO aspect | WP.1 |
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Finding - Perry - IR 05000440/2014005 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Perry) @ 2014Q4
Self-Identified List (Perry)
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