05000397/FIN-2013010-01
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Finding | |
|---|---|
| Title | Failure to Determine Cause for a Significant Condition Adverse to Quality |
| Description | The inspectors identified a non-cited violation of 10 CFR Part 50, Appendix B, Criterion XVI, Corrective Action, for the licensees failure to perform a cause evaluation for a significant condition adverse to quality. Specifically, the licensee failed to perform a cause evaluation for degraded and nonconforming conditions identified on the Division 1 critical switchgear air handling unit. The cumulative effect of these degraded and nonconforming conditions reduced the system heat removal capability below the performance requirements specified in station calculations. The licensee entered this issue into their corrective action program as Action Request AR 298179298179 This performance deficiency was more than minor because, if left uncorrected, the failure to determine the cause and take corrective action to address air- and water-side fouling of safety-related room coolers could become a more significant safety concern. 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 human performance associated with the work practices component in that the licensee failed to ensure appropriate supervisory and management oversight of work activities related to the screening of issues entered into the corrective action program. |
| 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 10 CFR 50 Appendix B Criterion XVI Technical Specification |
| CCA | H.2, Field Presence |
| INPO aspect | LA.2 |
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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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