05000482/FIN-2011006-01
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Finding | |
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| Title | Failure to Trend Emergency Diesel Generator Chemistry Parameters Results in an Unplanned Technical Specification Entry |
| Description | The inspectors identified a noncited violation of 10 CFR Part 50, Appendix B, Criterion V, Instructions, Procedures, and Drawings, for the failure to follow Procedure AP 28A-0100, Condition Reports, Revision 13. On February 17, 2011, the licensee received laboratory test results on the emergency diesel generator B fuel oil storage tank and determined that the cloud point parameter was out of specification at -8 Celsius. However, Procedure AP 28A-0100, step 5.13.3, required the licensee to evaluate condition report data to identify and evaluate potential trends. The emergency diesel fuel oil storage tank cloud point parameter had been trending closer to the acceptance criteria over the last several fuel oil additions. The licensee had allowed the original fuel oil vendor to continue to deliver fuel that was out of specification which resulted in a gradual trend toward the limits of the chemistry parameters. This trend was not appropriately evaluated because the licensee had not performed training to ensure that consistent and appropriate evaluations would be performed. This finding was more than minor because it affected the Mitigating Systems Cornerstone attribute of equipment performance by impacting the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. This deficiency directly resulted in emergency diesel generator B being declared inoperable due to its fuel oil storage tank being out of specification. The inspectors performed the significance determination using NRC Inspection Manual Chapter 0609.04, Phase 1 Initial Screening and Characterization of Findings, because it affected the Mitigating Systems Cornerstone while the plant was at power. The finding was determined to be of very low safety significance (Green) because it was not a design or qualification deficiency; it did not result in the loss of a system safety function; it did not represent the loss of a single train for greater than technical specification allowed time; it did not represent a loss of one or more non-technical specification risk-significant equipment for greater than 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />; and it did not screen as potentially risk significant due to seismic, flooding, or severe weather. In addition, this finding had a human performance crosscutting aspect associated with resources in that the licensee did not ensure that the corrective action program coordinators were effectively trained to cognitively and analytically trend condition reports H.2(b) |
| Site: | Wolf Creek  |
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| Report | IR 05000482/2011006 Section 4OA4 |
| Date counted | Mar 31, 2011 (2011Q1) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 95002 |
| Inspectors (proximate) | J Dixon D Dumbacher L Willoughby G Miller B Correll N Makris |
| Violation of: | 10 CFR 50 Appendix B 10 CFR 50 Appendix B Criterion V Technical Specification |
| CCA | H.9, Training |
| INPO aspect | CL.4 |
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Finding - Wolf Creek - IR 05000482/2011006 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Wolf Creek) @ 2011Q1
Self-Identified List (Wolf Creek)
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