ATC INSTRUCTIONS- Directives issued by air traffic control for the purpose of requiring a pilot to take specific actions; e.g., "Turn left heading two five zero," "Go around," "Clear the runway." ...
When used with ATC instructions, "when able", gives the pilot latitude to delay compliance until a condition or event has satisfied the pilot.
Holding pattern: Manoeuver consisting of making the aircraft turn around the aerodrome at an assigned altitude, while awaiting further ATC instructions. HSI: Horizontal Situation Indicator.
Aircraft or vehicles without radios must respond to ATC instructions via aviation light signals or else be led by vehicles with radios.
is noted in Airport Facility Directories) with downwind flown at a specified altitude, usually 1,000 or 1,500 feet above the airport elevation. At airports with a control tower; the pattern may be modified or short-cutaccording to ATC instructions.
See also: ATC, Weather, VFR, Route, Air traffic
 
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