05000293/FIN-2008005-01
From kanterella
Jump to navigation
Jump to search
Finding | |
|---|---|
| Title | Failure to Conduct a Risk Assessment for Emergent Maintenance on the High Pressure Coolant Injection System |
| Description | The inspectors identified a Green non-cited violation (NCV) of 10 CFR 50.65(a)(4) for Entergys failure to conduct a risk assessment for emergent maintenance on the High Pressure Coolant Injection (HPCI) system injection valve. Specifically, the failure to conduct a risk assessment resulted in Entergy not recognizing an increase in risk to a Yellow condition, and therefore no risk management actions were taken. Entergy entered this issue into their corrective action program. Corrective actions will include revising attachments in Entergys Technical Specification requirements procedure to perform a risk review as a result of emergent maintenance activities. This finding was more than minor because Entergy failed to consider the unavailability of a risk significant system where the outcome of the risk assessment would have been a change in a risk management category. The inspectors conducted an evaluation in accordance with IMC 0609, Significance Determination Process, Appendix K, Maintenance Risk Assessment and Risk Management Significance Determination Process. The finding was determined to be of very low safety significance (Green) because the Incremental Core Damage Probability Deficit for the timeframe that HPCI was removed from service was significantly less than 1E-6. The inspectors determined that this finding had a cross-cutting aspect in the area of Human Performance, Decision Making, because Entergy did not use a systematic process to make a risk-significant decision when faced with an unexpected plant condition |
| Site: | Pilgrim |
|---|---|
| Report | IR 05000293/2008005 Section 1R13 |
| Date counted | Dec 31, 2008 (2008Q4) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.13 |
| Inspectors (proximate) | R Fuhrmeister A Ziedonis R Rolph B Smith M Schneider D Lew |
| CCA | H.13, Consistent Process |
| INPO aspect | DM.1 |
| ' | |
Finding - Pilgrim - IR 05000293/2008005 | ||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Finding List (Pilgrim) @ 2008Q4
Self-Identified List (Pilgrim)
| ||||||||||||||||||||||||||||||||||||||||||||||