05000530/FIN-2006012-02
From kanterella
Jump to navigation
Jump to search
Finding | |
|---|---|
| Title | Failure to Identify and Correct a Condition Adverse to Quality |
| Description | The team identified an apparent violation of 10 CFR Part 50, Appendix B, Criterion XVI, Corrective Actions, for the failure to identify and correct the cause of erratic emergency diesel generator K-1 relay operation prior to installation of the relay on July 26, 2006. This performance deficiency contributed to the Unit 3 Train A emergency diesel generator being inoperable between September 4 and 22, 2006, and a failure on September 22, 2006. Immediate corrective actions included inspection, cleaning, and performing mechanical adjustments, as appropriate, on all emergency diesel generator K-1 relays. This issue was entered into the licensees corrective action program as Condition Report/Disposition Request 2926830. The finding is greater than minor because it is associated with the equipment performance cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. Using NRC Inspection Manual Chapter 0609, Significance Determination Process, Phase 1 Worksheet, a Phase 2 evaluation was required because the finding resulted in the loss of the safety function of the Unit 3 Train A emergency diesel generator for greater than the Technical Specification allowed outage time. The Phase 2 evaluation concluded that the finding was of low to moderate safety significance. A Phase 3 preliminary significance determination analysis also determined the finding was of low to moderate safety significance. The cause of this finding is related to the crosscutting element of problem identification and resolution in that the failure to fully evaluate and implement adequate corrective maintenance actions for the Unit 3 Train A emergency diesel generator resulted in the emergency diesel generator being inoperable for 18 days (Section 3.0). |
| Site: | Palo Verde  |
|---|---|
| Report | IR 05000530/2006012 Section 4OA5 |
| Date counted | Dec 31, 2006 (2006Q4) |
| Type: | AV: |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 93812 |
| Inspectors (proximate) | A Howell M Bloodgood M Hay M Runyan S Rutenkroger |
| Violation of: | 10 CFR 50 Appendix B 10 CFR 50 Appendix B Criterion XVI Technical Specification |
| INPO aspect | |
| ' | |
Finding - Palo Verde - IR 05000530/2006012 | |||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Finding List (Palo Verde) @ 2006Q4
| |||||||||||||||||||||||||||||||||