05000361/FIN-2008003-06
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Finding | |
|---|---|
| Title | Failure to Implement Procedural Requirements for Planned Unit 2 Power Reduction |
| Description | A self-revealing noncited violation of Technical Specification 5.5.1.1 was identified associated with the failure to implement procedural guidance to ensure a Unit 2 power reduction was properly performed. Lack of supervisory oversight resulted in an uncoordinated power reduction, resulting in a steam generator low pressure pre-trip annunciator. Specifically, on April 10, 2008, operations personnel failed to implement appropriate procedures to properly perform a power reduction from full power to 65 percent in support of a planned repair of a main feedwater pump. This finding was entered into the licensees corrective action program as Action Request 80400544. The finding is greater than minor because it is associated with the human performance attribute of the Initiating Events Cornerstone and affects the associated cornerstone objective to limit the likelihood of those events that upset plant stability and challenge the critical safety functions during shutdown as well as power operations. Using Manual Chapter 0609, Significance Determination Process, Phase 1 Worksheets, the finding is determined to have very low safety significance because it did not contribute to both the likelihood of a reactor trip and the likelihood that mitigating equipment or functions would not be available. The finding has a crosscutting aspect in the area of human performance associated with work practices because supervisory operations personnel did not ensure that the work activity was properly supervised to ensure the support of nuclear safety H.4(c) (Section 40A2) |
| Site: | San Onofre  |
|---|---|
| Report | IR 05000361/2008003 Section 4OA2 |
| Date counted | Jun 30, 2008 (2008Q2) |
| Type: | NCV: Green |
| cornerstone | Initiating Events |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71152 |
| Inspectors (proximate) | R Kopriva G George J Reynoso G Warnick C Osterholtz M Hay S Makor M Baquera |
| CCA | H.2, Field Presence |
| INPO aspect | LA.2 |
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Finding - San Onofre - IR 05000361/2008003 | |||||||||||||||||||||||||||||||||||||||||||
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Finding List (San Onofre) @ 2008Q2
Self-Identified List (San Onofre)
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