05000282/FIN-2013002-04
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Finding | |
|---|---|
| Title | Inadequate Work Instructions for Foreign Material Removal from D2 EDG Air Start Piping |
| Description | The inspectors identified finding of very low safety significance and an non-cited violation of 10 CFR Part 50, Appendix B, Criterion V, Instructions, Procedures, and Drawings, on January 28, 2013, due to the failure to have instructions appropriate to the circumstance to address the presence of foreign material in the new D2 emergency diesel generator (EDG) air start piping assembly. This resulted in the D2 EDG failing to start during monthly surveillance testing. Corrective actions for this issue included removing the foreign material from the piping assembly and inspecting the remaining D1 and D2 EDG air start piping assemblies for cleanliness. The inspectors determined that this issue was more than minor because if left uncorrected, the presence of foreign material in safety-related components could lead to a more significant safety concern. Specifically, foreign material could migrate into various areas and render safety-related equipment inoperable. The inspectors determined that this issue was of very low safety significance because each question provided in IMC 0609, Appendix A, Exhibit 2, Mitigating Systems Screening Questions, was answered no due to the ability to start the D2 EDG using the remaining air start train and the lack of foreign material in this portion of the D2 EDG starting air system. The inspectors determined that this issue was cross cutting in the Problem Identification and Resolution, Operating Experience area because the licensee had not institutionalized the operating experience regarding solenoid valve sticking due to foreign material through changes to station processes, procedures, equipment and training programs |
| 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 V |
| CCA | P.5, Operating Experience |
| INPO aspect | CL.1 |
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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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