airman

(A) in command, or as pilot, mechanic, or member of the crew, who navigates aircraft when under way;

(B) except to the extent the Administrator of the Federal Aviation Administration may provide otherwise for individuals employed outside the United States, who is directly in charge of inspecting, maintaining, overhauling, or repairing aircraft, aircraft engines, propellers, or appliances; or

(C) who serves as an aircraft dispatcher or air traffic control-tower operator.