05000285/FIN-2013013-16
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Finding | |
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Title | Inadequate Operability Determination Due to Failure to Consider an Unavailable Raw Water Pu |
Description | The team identified a non-cited violation of 10 CFR Part 50, Appendix B, Criterion V, Instructions, Procedures and Drawings, involving the licensee failure to follow procedures when evaluating the flooding mitigation impact of the removal of the motor for raw water Pump B. Specifically, on June 18, 2013, the operability determination for Corrective Action 018 of CR 2011-10302 was not performed in accordance with Station Procedure NOD-QP-31, Operability Determination Process, Step 4.3.15, and consequently, failed to evaluate the impact of having only two diversely powered available raw water pumps to support shutdown cooling system operability during a postulated site flood. This issue did not represent an immediate safety concern and has been entered into the corrective action program as CR 2013-15270. The failure to properly assess and document the basis for operability when a degraded or nonconforming condition was identified is a performance deficiency. This performance deficiency was more than minor, and therefore a finding, because it is associated with the equipment performance attribute of the Mitigating Systems Cornerstone and affected the 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, 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, this finding was determined to be of very low safety significance (Green) because the finding did not require a quantitative risk assessment because adequate mitigating equipment remained available. This finding has a cross-cutting aspect in the area of human performance associated with the work control component. Specifically, the team identified that the licensee failed to adequately plan and coordinate work activities, in which, interdepartmental coordination was necessary to assure plant and human performance. |
Site: | Fort Calhoun ![]() |
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Report | IR 05000285/2013013 Section 1R15 |
Date counted | Mar 31, 2014 (2014Q1) |
Type: | NCV: Green |
cornerstone | Mitigating Systems |
Identified by: | NRC identified |
Inspection Procedure: | IP 71111.15 |
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 | H.5, Work Management |
INPO aspect | WP.1 |
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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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