The controller ac adapter was not returned for evaluation.Review of log files couldn't not be conducted since log files were not available.As a result, the reported event could not be confirmed.Applicable risk documentation and experience with events of similar circumstances were considered; a possible root cause of the inability of the controller ac adapter to provide power may be attributed, but not limited to, a faulty internal component, an open circuit along the output cable, and/or a marginal connection between the controller and the controller ac adapter.If information is provided in the future, a supplemental report will be issued.
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