05000285/FIN-2013013-17
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Finding | |
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Title | Failure to Translate Design Sluice Gate Leakage Into Operating Procedure |
Description | The team identified a non-cited violation of 10 CFR Part 50, Appendix B, Criterion III, Design Control, associated with the licensees failure to correctly translate the acceptance limit of intake sluice gate leakage values into procedures. Specifically, the acceptance limit from the licensees testing was applied to 1000 feet of intake level and not to the 983 to 988 feet operating band prescribed in Section I Flooding, of Station Procedure AOP-01, Acts of Nature. This issue did not represent an immediate safety concern and has been entered into the corrective action program as CR 2013-15287. The failure to fully incorporate applicable design requirements is a performance deficiency. This performance deficiency was more than minor, and therefore a finding, because it is associated with the design control attribute of the Mitigating Systems Cornerstone and affected the associated cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. Using Inspection Manual Chapter 0609, Appendix G, Shutdown Operations Significance Determination Process, Attachment 1, Checklist 4, PWR Refueling Operation: RCS level > 23' OR PWR Shutdown Operation with Time to Boil > 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> and Inventory in the Pressurizer, dated May 25, 2004, the team determined that because this finding did not increase the likelihood of a loss of reactor coolant system inventory; did not degrade the licensees ability to terminate a leak path or add reactor coolant system inventory; and did not degrade the licensees ability to recover decay heat removal. This finding did not require a Phase 2 or 3 analysis as stated in Checklist 4. Therefore, the finding is determined to have very low safety significance (Green). This finding has a cross-cutting aspect in the area of problem identification and resolution associated with the corrective action program component because the licensee did not thoroughly evaluate problems such that the resolutions address causes and extent of conditions. |
Site: | Fort Calhoun |
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Report | IR 05000285/2013013 Section 1R21 |
Date counted | Mar 31, 2014 (2014Q1) |
Type: | NCV: Green |
cornerstone | Mitigating Systems |
Identified by: | NRC identified |
Inspection Procedure: | IP 71111.21 |
Inspectors (proximate) | G George H Barrett J Hanna J Jacobson J Josey J Polickoski J Robles J Watkins J Wingebach M Hay N Patel R Deese R Haskell R Telson S Laur S Makor T Lighty A Scarbeary C Baron C Henderson C Sanders C Smith D Loveless F Ramirez |
Violation of: | 10 CFR 50 Appendix B Criterion III, Design Control |
CCA | P.2, Evaluation |
INPO aspect | PI.2 |
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Finding - Fort Calhoun - IR 05000285/2013013 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Fort Calhoun) @ 2014Q1
Self-Identified List (Fort Calhoun)
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