05000416/FIN-2012008-06
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Finding | |
|---|---|
| Title | Failure to Incorporate Test and Inspection Requirements for 4160 Vac Circuit Breakers into Preventive Maintenance Procedures |
| Description | The team identified a Green non-cited violation of 10 CFR 50, Appendix B, Criterion XI, Test Control, which states, in part, A test program shall be established to assure that all testing required to demonstrate that structures, systems, and components will perform satisfactorily in service is identified and performed in accordance with written test procedures which incorporate the requirements and acceptance limits contained in applicable design document. Specifically, prior to Ju!y 27,2012, the licensee\'s safetyrelated 4160 Vac circuit breaker preventive maintenance Procedures 07 -S-12-41 , 07-S-12-42, and 07-S-12-61 failed to incorporate inspection and test requirements for minimum voltage tests, reduced voltage tests, and inspection of auxiliary switch relay contacts as established in the licensee\'s circuit breaker maintenance program. This condition was entered into the licensee\'s corrective action program as Condition Reports CR-GGN 20i 2-08885 and CR-GGN-2012-09111. The team determined that the failure to incorporate required tests and inspections into preventive maintenance procedures for safety-related 4160 Vac circuit breakers was a performance deficiency. This finding was more than minor because, if left uncorrected, it would lead to a more significant safety concern. Specifically, the failure to incorporate the testing, cleaning, and inspection requirements into preventive maintenance procedures were a significant programmatic deficiency which could cause unacceptable conditions to go undetected. Using the Inspection Manual Chapter 0609, Appendix A, The Significance Determination Process for Findings At-Power, the issue screened as having very low safety significance (Green) because it was a design or qualification deficiency that did not represent a loss of safety function. This finding had a crosscutting aspect in the area of problem identification and resolution, operating experience component, because the licensee failed to use operating experience information, including vendor recommendations and internally generated lessons learned, to support plant safety. Specifically, the licensee did not implement and institutionalize operating experience through changes to processes, procedures, equipment, and training programs. |
| Site: | Grand Gulf  |
|---|---|
| Report | IR 05000416/2012008 Section 1R21 |
| Date counted | Sep 30, 2012 (2012Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.21 |
| Inspectors (proximate) | I Anchondo N Okonkwo J Braisted |
| CCA | P.5, Operating Experience |
| INPO aspect | CL.1 |
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Finding - Grand Gulf - IR 05000416/2012008 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Grand Gulf) @ 2012Q3
Self-Identified List (Grand Gulf)
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