05000282/FIN-2009003-06
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Finding | |
|---|---|
| Title | 22 Battery Charger Rendered Inoperable During Maintenance on 22 Inverter |
| Description | A self-revealed finding of very low safety significance and a Non-Cited Violation of Technical Specification 5.4.1 were identified on April 26, 2009, due to maintenance personnel failing to implement procedures which control safety-related equipment. Specifically maintenance personnel did not comply with work order instructions or procedures, rendering the 22 battery charger inoperable during the performance of maintenance on the 22 instrument inverter. Corrective actions for this issue included issuing a stop work order and remediating the maintenance workers on human performance tool use. The inspectors determined that this finding was more than minor because it was associated with the equipment performance attribute of the Mitigating Systems cornerstone and impacted the cornerstone objective of ensuring the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. This finding was determined to be of very low safety significance because it was not a design deficiency, did not result in a loss of system safety function, was not an actual loss of safety function of one train of equipment for greater than the Technical Specification allowed outage time, and did not screen as a potentially significant seismic, flooding, or severe weather issue. The inspectors concluded that this finding was cross-cutting in the Human Performance, Work Practices area because maintenance personnel did not follow procedures during this maintenance activity (H.4(b)). (Section 4OA3.3 |
| Site: | Prairie Island  |
|---|---|
| Report | IR 05000282/2009003 Section 4OA3 |
| Date counted | Jun 30, 2009 (2009Q2) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71153 |
| Inspectors (proximate) | D Betancourt J Giessner J Neurauter K Stoedter M Phalen P Zurawski R Jones |
| CCA | H.8, Procedure Adherence |
| INPO aspect | WP.4 |
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Finding - Prairie Island - IR 05000282/2009003 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Prairie Island) @ 2009Q2
Self-Identified List (Prairie Island)
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