05000483/FIN-2014005-01
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Finding | |
|---|---|
| Title | Failure to Correct a Condition Adverse to Quality on Safety Related Equipment |
| Description | Inspectors reviewed a self-revealing non-cited violation of 10 CFR Part 50, Appendix B, Criterion XVI, Corrective Actions, involving the licensees failure to correct a condition adverse to quality. Specifically, an extent of condition review for a failed gasket identified that other safety related gaskets installed in the plant were potentially less reliable; however, no action was taken. One of these gaskets failed on October 17, 2014, and caused a 52 gpm leak from the end bell of the train B control room air conditioning chiller affecting the reliability of the train. This issue was entered into the licensees corrective action program as Callaway Action Request 201409335. One remaining improperly installed gasket was evaluated and operability was justified. The inspectors determined the failure to correct a condition adverse to quality was a performance deficiency. This performance deficiency was more than minor because it was associated with and adversely affected the equipment performance attribute of the Mitigating Systems Cornerstone, and affected the cornerstone objective to ensure the reliability of systems that respond to initiating events to prevent undesirable consequences. Specifically, during the period of November 2013 to October 2014, the failure to correct an improperly installed gasket on a control room air conditioning unit resulted in reduced reliability of the safety related system. Using NRC Inspection Manual 0609, Appendix A, Exhibit 2, Mitigating Systems Screening Questions, th
finding was determined to be of very low safety significance (Green) because it did not affect the design or qualification of the system, did not result in a loss of system function did not represent a loss of function of a single train for greater than its technical specifications allowed outage time, and did not cause the loss of function of one or mor non-technical specification trains of equipment designated as high safety-significance The finding has an Evaluation cross-cutting aspect within the problem identification an resolution area because the licensee failed to thoroughly evaluate and ensure that th resolution addressed the extent of condition commensurate with its safety significance Specifically, the extent of condition for improperly installed safety related gaskets wa identified; however, the evaluation of the degraded condition did not assess the significance and cause corrective actions to be scheduled in a timely manner commensurate with that significance [P.2]. |
| Site: | Callaway  |
|---|---|
| Report | IR 05000483/2014005 Section 1R12 |
| Date counted | Dec 31, 2014 (2014Q4) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71111.12 |
| Inspectors (proximate) | J O'Donnell L Brandt L Ricketson M Langelier N O'Keefe P Elkmann T Hartman W Sifre Z Hollcraft C Stott F Thomas I Anchondo J Buchanan |
| Violation of: | 10 CFR 50 Appendix B Criterion XVI Technical Specification |
| CCA | P.2, Evaluation |
| INPO aspect | PI.2 |
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Finding - Callaway - IR 05000483/2014005 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Callaway) @ 2014Q4
Self-Identified List (Callaway)
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