05000286/FIN-2009005-02
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Finding | |
|---|---|
| Title | Untimely Compensatory Measures for Degraded EDG Pressure Switches |
| Description | An NRC-identified NCV of very low safety significance of 10 CFR 50, Appendix B, Criterion XVI, Corrective Actions, was identified because Entergy personnel did not adequately correct a condition adverse to quality to ensure the continued operability of emergency diesel generators (EDGs). Specifically, Entergy personnel did not ensure that contacts associated with EDG jacket water pressure switches for the air start systems were in the appropriate state followirig EDG operations to support EDG restart. Additionally, after identification of the specific cause, Entergy personnel did not implement continuity checks on the EDGs to ensure continued operability after EDG operation in a timely manner. The finding was more than minor because the finding was associated with the Mitigating Systems cornerstone attribute of equipment performance and affected the cornerstone objective of ensuring the availability and reliability of systems that respond to initiating events to prevent undesirable consequences. Specifically, the 33 EDG incurred unavailability hours and reliability was impacted during EDG standby conditions with one air start sub-system available. The inspectors determined the finding was of very low safety significance because the finding was not a design or qualification deficiency, did not represent a loss of safety function, and was not risk significant with respect to external events. The inspectors determined that this finding had a cross-cutting aspect in the area of Problem Identification and Resolution because Entergy personnel did not implement adequate corrective actions to address continued EDG operability concerns with degraded jacket water pressure switches in a timely manner. |
| Site: | Indian Point  |
|---|---|
| Report | IR 05000286/2009005 Section 1R15 |
| Date counted | Dec 31, 2009 (2009Q4) |
| Type: | NCV: Green |
| cornerstone | Emergency Prep |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.15 |
| Inspectors (proximate) | T Fish C Crisden D Orr G Newman J Commiskey J D'Antonio J Schoppy M Gray M Halter P Cataldo |
| CCA | P.3, Resolution |
| INPO aspect | PI.3 |
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Finding - Indian Point - IR 05000286/2009005 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Indian Point) @ 2009Q4
Self-Identified List (Indian Point)
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