05000445/FIN-2010005-01
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Finding | |
|---|---|
| Title | Inadequate Control of Test Equipment Causes Ground Interaction |
| Description | The inspectors reviewed a self-revealing noncited violation of Technical Specification 5.4.1.a for the failure to establish controls for grounded test equipment. As a result, the test equipment caused a ground interaction that degraded safety-related instrumentation. The licensee entered the finding into the corrective action program as Condition Report CR-2009-008643
The finding was more than minor because it was associated with the procedure quality attribute of the initiating events cornerstone and adversely affected the cornerstone objective to limit the likelihood of those events that upset plant stability. Specifically, grounding interactions caused by test equipment resulted in instrument channel deviations and unintended control rod movement. Using NRC Manual Chapter 0609, Attachment 4, Phase 1 - Initial Screening and Characterization of Findings, the finding was determined to be of very low safety significance because the finding did not contribute to both the likelihood of a reactor trip and the likelihood that mitigation equipment would not be available. The finding has a problem identification and resolution crosscutting aspect associated with the corrective action program because the licensee failed to thoroughly evaluate the problem and identify the cause of the issue P.1c]. |
| Site: | Comanche Peak  |
|---|---|
| Report | IR 05000445/2010005 Section 4OA7 |
| Date counted | Dec 31, 2010 (2010Q4) |
| Type: | NCV: Green |
| cornerstone | Initiating Events |
| Identified by: | Self-revealing |
| Inspection Procedure: | |
| Inspectors (proximate) | G Guerra B Tharakan C Graves D Stearns L Carson W Walker J Kramer C Alldredge C Denissen L Micewski J Dixon |
| CCA | P.2, Evaluation |
| INPO aspect | PI.2 |
| ' | |
Finding - Comanche Peak - IR 05000445/2010005 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Comanche Peak) @ 2010Q4
Self-Identified List (Comanche Peak)
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