05000482/FIN-2013008-13
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Finding | |
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| Title | Failure to Fully Establish Design Control Measures for Vital Essential Chillers SGK05 A/B Air Conditioning Units |
| Description | The team identified a Green, non-cited violation of 10 CFR Part 50, Appendix B, Criterion XVI, Corrective Action, which states, in part, Measures shall be established to assure that conditions adverse to quality, such as failures, malfunctions, deficiencies, defective materials and equipment, and nonconformances, are promptly identified and corrected. Specifically, since May 2011, the licensee had numerous opportunities, but failed to correct calculation GK06W and to adequately assess compensatory actions identified to supplement weaknesses in the calculations for operation of one vital air conditioning unit to cool both trains of Class IE electrical equipment. The licensee has entered this issue into their corrective action program as Condition Report CR73410. The team determined the failure to promptly identify and correct the errors in Calculation GK06W and to have adequate compensatory measures in place as required by the calculation was a performance deficiency. This finding was more than minor because it adversely affected the Equipment Performance attribute of the Mitigating Systems Cornerstone objective of ensuring the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. Specifically, without having an adequate calculation and compensatory measures, the licensee would not be assured that one vital air conditioning unit would be capable of cooling both trains of Class IE electrical equipment. In accordance with NRC Inspection Manual Chapter 0609, Appendix A, Exhibit 2, the inspectors determined the finding was of very low safety significance (Green), because the finding was not a design deficiency and did not result in the loss of operability or functionality. The finding had a crosscutting aspect in the area of Human Performance, Resources component, because the licensee failed to ensure that personnel, equipment, procedures, and other resources are available and adequate to assure nuclear safety. Specifically, those resources necessary to provide complete, accurate, and up-to-date design documentations, and equipment are available and adequate to assure nuclear safety. |
| Site: | Wolf Creek  |
|---|---|
| Report | IR 05000482/2013008 Section 4OA3 |
| Date counted | Sep 30, 2013 (2013Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71153 |
| Inspectors (proximate) | S Garchow B Correll A Sengupta H Leake R Kopriva T Farnholtz |
| Violation of: | 10 CFR 50 Appendix B Criterion XVI |
| CCA | H.7, Documentation |
| INPO aspect | WP.3 |
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Finding - Wolf Creek - IR 05000482/2013008 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Wolf Creek) @ 2013Q3
Self-Identified List (Wolf Creek)
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