05000282/FIN-2009002-03
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Finding | |
|---|---|
| Title | Failure to Follow Procedure During D5 Post-Maintenance Testing |
| Description | The inspectors identified a finding of very low safety significance on February 25, 2009, due to operations and maintenance personnel failing to identify a turbocharger coolant vent line fretting condition during a D5 emergency diesel generator post-maintenance test or during previous D5 operations. The lack of identification resulted in D5 operating with degraded conditions prior to the fretting issue being evaluated in the corrective action program. Corrective actions for this issue included performing an ultrasonic examination of the fretted area in support of an evaluation to determine whether the pipe needed to be replaced prior to declaring the diesel generator operable. The licensee also documented the untimely identification of the issue within its corrective action program. This finding was more than minor because if left uncorrected, the failure to identify, evaluate, and correct equipment issues could result in returning safety-related equipment to service with deficiencies that impact the ability of the equipment to perform its safety function (a more significant safety concern). The inspectors determined that the finding was of very low safety significance because it was not associated with an actual loss of safety function and did not screen as potentially risk significant due to a seismic, flooding, or severe weather initiating event. The inspectors considered the finding to be cross-cutting in the Problem Identification and Resolution, Corrective Action Program area because operations and maintenance personnel failed to identify this issue in a timely manner commensurate with its safety significance (P.1(a)). No violations of NRC requirements occurred because D5 was not operable at the time this issue was identified and corrective actions were taken before it became operable. |
| Site: | Prairie Island  |
|---|---|
| Report | IR 05000282/2009002 Section 1R19 |
| Date counted | Mar 31, 2009 (2009Q1) |
| Type: | Finding: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.19 |
| Inspectors (proximate) | D Betancourt J Giessner K Stoedter N Feliz P Zurawski |
| CCA | P.1, Identification |
| INPO aspect | PI.1 |
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Finding - Prairie Island - IR 05000282/2009002 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Prairie Island) @ 2009Q1
Self-Identified List (Prairie Island)
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