05000416/FIN-2008005-08
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Finding | |
|---|---|
| Title | Automatic Reactor Scram Caused by an Operator Inadvertently Closing the Steam Supply Valves to Reactor Feed Pump Turbine |
| Description | The finding was more than minor because it was associated with the initiating events cornerstone attribute of human performance and affected the associated cornerstone objective to limit the likelihood of those events that upset plant stability and challenge critical safety functions during power operations. Using the Inspection Manual Chapter 0609, Significance Determination Process, Phase 1 Worksheet, the inspectors concluded that an evaluation was required by the regional senior reactor analyst, because the finding impacted both the initiating event and mitigating systems cornerstone. The senior reactor analyst performed a Phase 3 analysis and determined the issue was very low safety significance (Green). The cause of this finding has a crosscutting aspect in the area of human performance associated with work practices because the operator failed to use proper self-checking techniques while performing actions to place feed Pump B in the standby lineup H.4(a). (Section 4OA3 |
| Site: | Grand Gulf  |
|---|---|
| Report | IR 05000416/2008005 Section 4OA3 |
| Date counted | Dec 31, 2008 (2008Q4) |
| Type: | Finding: Green |
| cornerstone | Initiating Events |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71153 |
| Inspectors (proximate) | P Elkmann B Henderson L Carson R Smith A Barrett G Miller D Bollock S Makor |
| CCA | H.12, Avoid Complacency |
| INPO aspect | QA.4 |
| ' | |
Finding - Grand Gulf - IR 05000416/2008005 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Grand Gulf) @ 2008Q4
Self-Identified List (Grand Gulf)
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