05000397/FIN-2017008-03
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Finding | |
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| Title | |
| Description | Green . The inspectors reviewed a self -revealed, non- cited violation of 10 CFR Part 50, Appendix B, Criterion XVI , Corrective Action, for failure to promptly identify and correct a condition adverse to quality. Specifically, since 2009, the licensee failed to implement prompt corrective actions to correct an adverse condition related to the use of spiral wound gaskets for restricting orifices in the HPCS system. As an immediate corrective action, the licensee replaced the gasket for restricting orifice RO -5 under Work Order 02105645. The licensee entered this issue into the corrective action program as A ction Request 359066. 4 The failure to implement prompt corrective actions to correct an adverse condition related to the use of spiral wound gaskets for restricting orifices in the HPCS system was a performance deficiency. The performance deficiency was more than minor, and therefore a finding, because it affected the design control attribute of the Mitigating Systems Cornerstone and adversely affected the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. Specifically, the licensees failure to correct the use of incorrect spiral wound gaskets for restricting orifices in the HPCS system resulted in a failed gasket during the December 18, 2016 scram , introduction of foreign material into the suppression pool, and leakage into the HPCS room. The inspectors performed the initial significance determination using NR C Inspection Manual Chapter 0609, Appendix A, Exhibit 2, Mitigating Systems Screening Questions. The inspectors determined that the finding was 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 nontechnical specification trains of equipment designated as high safety -significant in accordance with the licensees maintenance rule program for greater than 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> s. The inspectors determined that this finding did not have a cross -cutting aspect as the descision to use incorrect spiral wound gaskets occurred in 2009 and was not reflective of current performance. |
| Site: | Columbia  |
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| Report | IR 05000397/2017008 Section 4OA5 |
| Date counted | Mar 31, 2017 (2017Q1) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 93812 |
| Inspectors (proximate) | D Bradley G Kolcum M Haire R Deese |
| Violation of: | Technical Specification |
| INPO aspect | |
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Finding - Columbia - IR 05000397/2017008 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Columbia) @ 2017Q1
Self-Identified List (Columbia)
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