Air traffic control means a service operated by appropriate authority to promote the safe, orderly, and expeditious flow of air traffic.
Air Traffic Service (ATS) route is a specified route designated for channeling the flow of traffic as necessary for the provision of air traffic services. The term "ATS route" refers to a variety of airways, including jet routes, area navigation (RNAV) routes, and arrival and departure routes. An ATS route is defined by route specifications, which may include:
(1)
An ATS route designator;
(2)
The path to or from significant points;
(3)
Distance between significant points;
(4)
Reporting requirements; and
(5)
The lowest safe altitude determined by the appropriate authority.
Air transportation means interstate, overseas, or foreign air transportation or the transportation of mail by aircraft.
Alert Area. An alert area is established to inform pilots of a specific area wherein a high volume of pilot training or an unusual type of aeronautical activity is conducted.
Alternate airport means an airport at which an aircraft may land if a landing at the intended airport becomes inadvisable.
Altitude engine means a reciprocating aircraft engine having a rated takeoff power that is producible from sea level to an established higher altitude.
Appliance means any instrument, mechanism, equipment, part, apparatus, appurtenance, or accessory, including communications equipment, that is used or intended to be used in operating or controlling an aircraft in flight, is installed in or attached to the aircraft, and is not part of an airframe, engine, or propeller.
Approved, unless used with reference to another person, means approved by the Administrator.
Area navigation (RNAV) is a method of navigation that permits aircraft operations on any desired flight path.
Area navigation low route-- removed
Area navigation high route-- removed
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