05000286/FIN-2016003-03
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Finding | |
|---|---|
| Title | Untimely Corrective Actions to Address Degraded Automatic Voltage Regulator Cards |
| Description | The inspectors identified a Green NCV of 10 CFR 50, Appendix B, Criterion XVI, Corrective Actions, because Entergy did not take timely corrective action to perform an inspection of the 33 EDG AVR card. As a result, the degraded solder connections on the card were not repaired for an excessive period of time. Entergy repaired the solder joints on the AVR card in the 33 EDG and wrote CR-IP3-2016-3018. This performance deficiency was more than minor because it is associated with the Equipment Performance attribute of the Mitigating Systems cornerstone and adversely affected its objective to ensure the reliability of systems that respond to initiating events to prevent undesirable consequences. The existence of degraded solder joints on the AVR card decreases the reliability of the EDG, and the untimely corrective action allowed the degradation to exist for longer than necessary without being corrected. In accordance with IMC 0609, Appendix A, The Significance Determination Process for Findings at Power, the inspectors determined that the finding was of very low safety significance (Green) because the 33 EDG maintained its operability or functionality, it did not represent a loss of system or function, and it did not involve external mitigation systems. The inspectors determined that this finding had a cross-cutting aspect in the area of Human Performance, Conservative Bias, because leaders did not take a conservative approach to decision making, particularly when information is incomplete or conditions are unusual. Specifically, Entergy did not inspect the 33 EDG AVR cards at the first available opportunity due to resource constraints. |
| Site: | Indian Point  |
|---|---|
| Report | IR 05000286/2016003 Section 1R22 |
| Date counted | Sep 30, 2016 (2016Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.22 |
| Inspectors (proximate) | B Haagensen E Dipaolo F Arner G Newman J Amberosini J Furia S Elkhiamy S Rich |
| Violation of: | 10 CFR 50 Appendix B 10 CFR 50 Appendix B Criterion XVI |
| CCA | H.14, Conservative Bias |
| INPO aspect | DM.2 |
| ' | |
Finding - Indian Point - IR 05000286/2016003 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Indian Point) @ 2016Q3
Self-Identified List (Indian Point)
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