05000483/FIN-2009003-03
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Finding | |
|---|---|
| Title | Inadequate, At Power, Risk Assessment for Maintenance Activites on One Train of Essential Service Water and Emergency Diesel Generator |
| Description | The inspectors identified a noncited violation of 10 CFR 50.65(a)(4) associated with the licensees failure to perform an adequate risk assessment for planned maintenance on the emergency diesel generator Train A and essential service water pump Train A. On April 28, 2009, Callaway Plant operators removed the emergency diesel generator Train A and essential service water pump Train A from service. The inspectors\' review of the plant risk profile for the in-progress maintenance activity uncovered that this risk had not been accounted for by the plant safety monitor tool. The licensee entered this item into their corrective action program as Callaway Action Request 200903480 The finding is more than minor because the risk, when correctly assessed, put the plant into a higher risk category for large early release frequency. Also the licensee risk assessment failed to consider risk significant systems, structures, and components and support systems that were unavailable during the maintenance. This finding had a crosscutting aspect in the area of human performance associated with the work controls component because the licensee failed to appropriately plan work activities consistent with nuclear safety by incorporating risk insights H.3(a) |
| Site: | Callaway  |
|---|---|
| Report | IR 05000483/2009003 Section 1R13 |
| Date counted | Jun 30, 2009 (2009Q2) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.13 |
| Inspectors (proximate) | D Dumbacher P Elkmann D Stearns V Gaddy J Groom |
| CCA | H.5, Work Management |
| INPO aspect | WP.1 |
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Finding - Callaway - IR 05000483/2009003 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Callaway) @ 2009Q2
Self-Identified List (Callaway)
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