05000285/FIN-2013013-09
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Finding | |
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Title | Non-conservative Criteria in Operability Procedure |
Description | The team identified a non-cited violation of Title 10 CFR Part 50, Appendix B, Criterion V, Instructions, Procedures, and Drawings, for the licensees failure to develop an adequate procedure for assessing operability of degraded piping and pipe supports. Specifically, Station Procedure PED-MEI-17, Interim Operability Criteria, a procedure the licensee used to evaluate CQE and L-CQE piping and piping supports that are found to exceed design basis requirements, was inadequate for this application because it did not contain all applicable constraints. The licensees corrective actions were to capture the identified instances in the corrective action program and discontinue the use of the interim operability procedure. This issue was entered into the licensees corrective action program as CR 2013-22342. The failure to use an adequate procedure for evaluating degraded or nonconforming pipe and pipe supports 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 A, The Significance Determination Process (SDP) for Findings At-Power, dated July 1, 2012, and guidance from the Office of Nuclear Reactor Regulation, Division of Engineering technical staff for issues where the inputs to calculations deviated from approved standards, the finding was determined to have very low safety significance (Green) because: (1) the Office of Nuclear Reactor Regulation technical staff determined the non-conformances would not render the evaluated component as inoperable or unable to perform its safety function ; (2) it was not a deficiency affecting the design and qualification of a mitigating structure, system, or component; and (3) it did not represent an actual loss of function of one or more non-Technical Specification trains of equipment designated as high safety-significance in accordance with the licensees maintenance rule program. There was no cross-cutting aspect assigned to this finding because this issue does not reflect present licensee 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 |
INPO aspect | |
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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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