05000266/FIN-2012003-01
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Finding | |
|---|---|
| Title | Failure To Establish Emergency Diesel Generator Ventilation System Testing |
| Description | The inspectors identified a finding of very low safety significance and associated non-cited violation of 10 CFR Part 50, Appendix B, Criterion XI, Test Control, because the licensee failed to establish routine testing procedure that demonstrated room temperatures would be maintained. Specifically, on March 29, 2012, the inspectors identified that the licensee failed to establish routine testing procedure that demonstrated the air flows for emergency diesel generators G-01 and G-02 ventilation systems would perform adequately to ensure that the room temperatures would be maintained. The licensee entered this issue into its corrective action program, and corrective actions included performance of air flow measurements on the fan units, creation of a preventive maintenance requirement for taking periodic flow measurements, and assessment of the identified issue through a condition evaluation. The finding was determined to be more than minor in accordance with Inspection Manual Chapter 0612, Appendix B, Issue Screening, dated December 24, 2009. The inspectors determined that this finding was more than minor because it was associated with the Mitigating Systems Cornerstone attribute for design control. Specifically, it adversely affected the Mitigating System Cornerstone objective to ensure the reliability of systems that respond to initiating events to prevent undesirable consequences. This finding has a cross-cutting aspect in the area of human performance, decision-making. Specifically, the licensee did not use conservative assumptions regarding the verification of the proper air flow through the safety-related gravity dampers in the emergency diesel generators G-01 and G-02 rooms |
| Site: | Point Beach  |
|---|---|
| Report | IR 05000266/2012003 Section 1R19 |
| Date counted | Jun 30, 2012 (2012Q2) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.19 |
| Inspectors (proximate) | M Kunowski S Burton R Krsek V Meghani J Bozga M Learn M Thorpe -Kavanaugh V Myers C Zoia A Dahbur T Bilik M Phale |
| CCA | H.14, Conservative Bias |
| INPO aspect | DM.2 |
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Finding - Point Beach - IR 05000266/2012003 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Point Beach) @ 2012Q2
Self-Identified List (Point Beach)
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