05000397/FIN-2011004-03
From kanterella
Jump to navigation
Jump to search
Finding | |
|---|---|
| Title | Failure to Test Emergency Diesel Generator Critical Trips |
| Description | The inspectors identified a noncited violation of Technical Specification 3.8.1, AC Sources - Operating, for the licensee's failure to meet testing requirements of Surveillance Requirement 3.8.1.13. Specifically, the inspectors determined the licensee had not performed tests to determine if the critical trips associated with the emergency diesel generators would perform their required function. Following identification of the issue by the inspectors, the licensee personnel revised the surveillance testing procedures associated with the emergency diesel generators. Critical trips for all three emergency diesel generators tested successfully. This issue was placed in the licensee's corrective action program as Action Request 244898. The finding was more than minor because it affected the equipment performance attribute of the Mitigating Systems Cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events. The inspectors determined the at-power significance determination process was to be used since this performance deficiency affected at-power operations only. Using Inspection Manual Chapter 0609.04, Phase 1 - Initial Screening and Characterization of Findings, the inspectors determined the performance deficiency was of very low safety significance (Green) because it was a qualification deficiency confirmed not to result in a loss of operability since all three diesel generators tested successfully. The inspectors determined a cross-cutting aspect was not applicable to this finding because the decision to not test the non emergency trips was made early in plant operation and therefore not reflective of current plant performance. |
| Site: | Columbia  |
|---|---|
| Report | IR 05000397/2011004 Section 1R15 |
| Date counted | Sep 30, 2011 (2011Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.15 |
| Inspectors (proximate) | L Ricketson P Elkmann R Cohen G George L Carson W Walker A Fairbanks J Groom M Hayes E Ruesch D Reinert N Greene |
| INPO aspect | |
| ' | |
Finding - Columbia - IR 05000397/2011004 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Finding List (Columbia) @ 2011Q3
Self-Identified List (Columbia)
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||