05000446/FIN-2014008-01
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Finding | |
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| Title | Failure to Update Procedures for Cable Label Controls |
| Description | The team reviewed a Green self-revealing non-cited violation of 10 CFR Part 50, Appendix B, Criterion V, Instructions, Procedures, and Drawings, for the failure to ensure that quality related procedures provide adequate guidance for labeling and terminating cables during implementation of circuit modifications. Specifically, procedure CMP-EL-1006, Cable Terminations, Revision 3, did not prescribe the appropriate human performance standards and cable label controls when installing new cable. As a result, a wiring error caused one of the two turbine-driven auxiliary feedwater pump steam supply valves to fail open when the hot shutdown panel transfer/isolation switch was taken to the remote position. The licensee entered this into the corrective action program as condition report CR-2013-000140. The corrective actions included: confirming that the same error did not exist for the other steam supply valve or for the Unit 1 transfer switch, retiring procedure CMP-EL-1006 and revising other maintenance section generic procedures that will be used to implement future circuit modifications. The licensees failure to ensure that procedures provide adequate guidance for labeling and terminating cables during circuit modifications was a performance deficiency. The finding was more than minor because if left uncorrected this could have the potential to lead to a more significant safety concern. Specifically, operation of the hot shutdown panel auxiliary feedwater transfer/isolation switch cannot be reliably performed. Using NRC Inspection Manual Chapter 0609, Appendix F, Attachment 1, Part 1: Fire Protection SDP Phase 1 Worksheet, dated September 30, 2013, the finding was determined to be of very low safety significance (Green), by answering Step 1.3.1, Question 2, because the finding did not affect the reactor to be able to reach and maintain a safe shutdown condition. The finding had a human performance cross-cutting aspect in resources because leaders failed to ensure that personnel and procedures were available and adequate to support nuclear safety. |
| Site: | Comanche Peak  |
|---|---|
| Report | IR 05000446/2014008 Section 4OA3 |
| Date counted | Mar 31, 2014 (2014Q1) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71153 |
| Inspectors (proximate) | B Correll E Uribe J Dixon J Watkins S Alferink |
| Violation of: | 10 CFR 50 Appendix B Criterion V |
| CCA | H.1, Resources |
| INPO aspect | LA.1 |
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Finding - Comanche Peak - IR 05000446/2014008 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Comanche Peak) @ 2014Q1
Self-Identified List (Comanche Peak)
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