05000285/FIN-2013013-18
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Finding | |
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Title | Inadequate Procedure for Intake Cell Level Control During a Flooding Event |
Description | The team identified a non-cited violation of 10 CFR Part 50, Appendix B, Criterion V, Instructions, Procedures, and Drawings, for the licensee's failure to maintain an adequate procedure for site flooding. Specifically, since June 2013the licensee failed to include appropriate quantitative or qualitative acceptance criteria for Section I Flooding, of Station Procedure AOP-01, Acts of Nature, on how to proceed if steps taken to maintain intake cell level less than 988 feet were unsuccessful during a flooding event. This issue did not represent an immediate safety concern and has been entered into the corrective action program as CR 2013-15289. The licensees failure to maintain an adequate procedure for maintaining intake cell level during a flood is a performance deficiency. This performance deficiency was more than minor, and therefore a finding, because it is associated with the procedure quality 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 finding is determined to have very low safety significance (Green) because the 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. 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 1R06 |
Date counted | Mar 31, 2014 (2014Q1) |
Type: | NCV: Green |
cornerstone | Mitigating Systems |
Identified by: | NRC identified |
Inspection Procedure: | IP 71111.06 |
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 V |
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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