05000458/FIN-2008004-01
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Finding | |
|---|---|
| Title | Inadequate Procedure for Staging the Station Blackout Diesel Generator during Severe Weather |
| Description | The inspectors identified a noncited violation of Technical Specification 5.4.1.a involving the failure to have an adequate procedure to ensure the availability of on-site emergency ac power sources following the fourhour coping period of a postulated station blackout. Specifically, station procedures did not ensure that the station blackout diesel generator would be reliably deployed to fulfill its intended function during sustained high winds. The licensee entered this issue into their corrective action program as Condition Report CR-RBS-2008-5050. This finding is more than minor because it is associated with the protection against external factors attribute (wind and grid stability) of the mitigating systems cornerstone and affected the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. The inspectors evaluated the significance of this finding using Manual Chapter 0609.04, Phase 1 - Initial Screening and Characterization of Findings, and determined it to be of very low safety significance because it did not result in an actual loss of safety function and did not screen as potentially risk significant due to a seismic, flooding, or severe weather initiating event (Section 1R01). |
| Site: | River Bend  |
|---|---|
| Report | IR 05000458/2008004 Section 1R01 |
| Date counted | Sep 30, 2008 (2008Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.01 |
| Inspectors (proximate) | R Kopriva R Azua G Larkin D Bollock C Norton |
| INPO aspect | |
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Finding - River Bend - IR 05000458/2008004 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (River Bend) @ 2008Q3
Self-Identified List (River Bend)
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