05000397/FIN-2013010-03
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Finding | |
|---|---|
| Title | Failure to Perform Adequate Testing of the Service Water Supplied Room Coolers |
| Description | The inspectors identified a non-cited violation of 10 CFR Part 50, Appendix B, Criterion XI, Test Control, for the licensees failure to maintain an adequate test program that demonstrates safety-related room coolers will perform satisfactorily in service. Specifically, recent internal operating experience revealed that macro-fouling is not appropriately accounted for in the licensees testing methodology which uses a representative cooler to demonstrate service water system performance. The licensee entered this issue into their corrective action program as Action Request AR 291981291981 The performance deficiency was more than minor because it affected the procedure quality attribute of the Mitigating Systems Cornerstone objective and adversely affected the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. The inspectors performed an initial screening of the finding in accordance with NRC Manual Chapter IMC 0609, Appendix A, The Significance Determination Process (SDP) for Findings At-Power. Using IMC 0609, Appendix A, Exhibit 2, Mitigating Systems Screening Questions, the inspectors determined this finding is of very low safety significance (Green) because: (1) the finding was not a deficiency affecting the design or qualification of a mitigating system; (2) the finding did not represent a loss of system and/or function; (3) the finding did not represent an actual loss of function of a single train for greater than its technical specification allowed outage time; and (4) the finding does not represent an actual loss of function of one or more non-technical specification trains of equipment designated as high safety-significant in accordance with the licensees maintenance rule program for greater than 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. This finding had a cross-cutting aspect in the area of problem identification and resolution associated with the operating experience component because the licensee failed to institutionalize operating experience involving macro-fouling of service water cooling coils through changes to station processes, procedures, and testing programs. |
| Site: | Columbia  |
|---|---|
| Report | IR 05000397/2013010 Section 4OA5 |
| Date counted | Dec 31, 2013 (2013Q4) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 93812 |
| Inspectors (proximate) | G Replogle J Groom R Lantz |
| Violation of: | 10 CFR 50 Appendix B Criterion XI Technical Specification Technical Specification - Procedures |
| CCA | P.5, Operating Experience |
| INPO aspect | CL.1 |
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Finding - Columbia - IR 05000397/2013010 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Columbia) @ 2013Q4
Self-Identified List (Columbia)
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