Permission given to depart the airport and commence a flight
The ATC facility responsible for controlling aircraft on the ground
An event where an aircraft or vehicle enters a runway without permission
A racetrack-shaped path flown by an aircraft while waiting for permission to land
The segment of the approach to landing that begins at the final approach fix or point and ends at the runway threshold
The ATC facility responsible for issuing clearances to aircraft before they depart
Instrument Landing System
A device that transmits an aircraft's position and altitude to ATC
The ATC facility responsible for controlling aircraft in the vicinity of the airport
Standard Instrument Departure
The ATC facility responsible for controlling aircraft during the approach phase of flight
International Civil Aviation Organization
Minimum Safe Altitude Warning An automated system that alerts pilots when they are flying too close to the ground or terrain
The point on an instrument approach where the aircraft begins the final descent to the runway
The area of the sky where aircraft operate
A restriction placed on the number of aircraft allowed to depart or arrive at an airport due to congestion or weather conditions
The point on an instrument flight plan where the aircraft must receive further clearance from ATC
A procedure where an aircraft must abort its landing and climb back up to a safe altitude due to weather, traffic, or other factors