AC – Air Traffic Controlman
Air Traffic Controllers (AC) provide air traffic control services in air traffic control towers, radar air traffic control facilities, fleet area control and surveillance facilities, and air operations offices ashore and afloat. They operate radio communication systems and light signals and direct aircraft under Visual Flight Rules (VFR) and Instrument Flight Rules (IFR). In addition, they operate surveillance radar, precision radar, data link approach systems, Identification Friend or Foe (IFF) equipment, and other air traffic control equipment. They respond to emergency air traffic situations, maintain current flight planning information and reference material, and assist pilots in preparing and processing flight plans.