NFC Learning

“air traffic control service” means a service provided for the purpose of:

(a) preventing collisions between aircraft, and on the manoeuvring area, between
aircraft and obstructions, and

(b) expediting and maintaining an orderly flow of air traffic.

“air traffic service” (ATS) includes the following services, namely, flight information
service, alerting service, air traffic advisory service, air traffic control service, area control
service, approach control service and aerodrome control service.

“air traffic services airspaces” means airspaces of dimensions defined and alphabetically
designated by the appropriate ATS authority within which specific types of flights may
operate and for which air traffic services and rules of operation are specified.

“air traffic services reporting office” means a unit provided by the appropriate authority
either as a separate unit or combined with another unit, for the purpose of receiving reports
concerning air traffic services and flight plans submitted before departure.

Air transit route. A defined route for the air transiting of helicopters.

“air transport undertaking” means an undertaking the business of which includes the
carriage by air for hire or reward of passengers or cargo;

“air-ground communication” means a two-way communication between aircraft and
stations or locations on the surface of the earth;

“air-ground control radio station” means an aeronautical telecommunication station having
primary responsibility for handling communications pertaining to the operation and control
of aircraft in a given area;

Air-report. A report from an aircraft in flight prepared in conformity with requirements for position, and operational and/or
meteorological reporting.

Note.— Details of the AIREP form are given in the PANS-ATM (Doc 4444).

“air-taxiing” means the movement of a helicopter above the surface of an aerodrome,
normally in ground effect and at a speed normally less than 37 km/h (20 kt)