Safety
FAA Warns of Accidental Control Knob Selections
The agency noted that pilots are inadvertently changing selections of concentrically centered knobs with some regularity.

The FAA is warning that pilots are inadvertently changing selections of concentrically centered knobs with some regularity. Citing reports from manufacturers and pilots, the FAA noted that these errors are occurring particularly when pilots dial in comm and nav frequencies. For instance, in one reported incident, rotating the navigation course selection knob resulted in an unintentional change to the barometric altitude setting.


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