05000282/FIN-2013002-05
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Finding | |
|---|---|
| Title | Improperly Sized Motor Overload Heaters Render D6 EDG Inoperable |
| Description | The inspectors identified a finding of very low safety significance and an non-citied violation of 10 CFR Part 50, Appendix B, Criterion III, Design Control, for the failure to establish measures for the selection and review for suitability of application of parts that are essential to the safety-related functions of structures, systems and components (SSC). Specifically, the licensee failed to ensure that the D5 and D6 EDG radiator fan motor thermal overload heaters were sized in accordance with Procedure H6.3, General Electric Thermal Overload Heater Sizing for Non-Motor Operated Valve Motors. This resulted in the D6 EDG becoming inoperable due to Fan #2 on Engine #1 tripping during surveillance testing conducted on December 17, 2012. This issue was determined to be more than minor because it impacted the equipment performance attribute of the Mitigating Systems Cornerstone. In addition, this issue impacted the cornerstone objective of ensuring the availability, reliability and capability of systems that respond to initiating events to prevent undesirable consequences. The inspectors determined that this finding was of very low safety significance because each question provided in IMC 0609, Appendix A, Exhibit 2 was answered no. The 3 Enclosure inspectors determined that this issue was cross cutting in the Problem Identification and Resolution, Corrective Action Program area because the licensee did not take appropriate corrective actions to address safety issues in a timely manner commensurate with their safety significance and complexity |
| Site: | Prairie Island  |
|---|---|
| Report | IR 05000282/2013002 Section 1R22 |
| Date counted | Mar 31, 2013 (2013Q1) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.22 |
| Inspectors (proximate) | A Dunlop C Moore D Passehl J Bozga K Riemer K Stoedter M Holmberg M Learn M Phalen P Zurawski T Bilik |
| Violation of: | 10 CFR 50 Appendix B Criterion III, Design Control |
| CCA | P.3, Resolution |
| INPO aspect | PI.3 |
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Finding - Prairie Island - IR 05000282/2013002 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Prairie Island) @ 2013Q1
Self-Identified List (Prairie Island)
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