Definition
Ground-based air traffic control installations equipped with radar that detect, track, and provide information or services to aircraft. In the emergency context, these include Air Route Traffic Control Centers (ARTCCs), approach and departure control facilities, and control towers with radar capability, all of which can offer assistance such as vectors, position information, weather avoidance, and emergency handling.
Plain English
ATC stations on the ground that use radar to see where aircraft are and help them, including in emergencies.
Context Anchor
Seen in instrument emergency guidance, especially when a pilot needs help from air traffic control during lost communication, instrument failure, bad weather, or uncertainty about position.
Derivation
“Radar” began as an acronym for “radio detection and ranging,” meaning finding objects and their distance by using radio waves. “Facility” can mean a place or organized service. In aviation, the phrase points to the control service that has radar capability, not just the physical building.
Why Pilots Care
In emergencies, radar facilities can locate the aircraft and issue vectors or altitude guidance when onboard systems fail.
Intuition Check
Do not read “facility” as just a building. In FAA use, a radar facility usually means the air traffic control unit or service that can use radar to assist aircraft.
Example Sentence 1
After losing his vacuum system in the clouds, the pilot contacted the nearest radar facility for vectors to VFR conditions.
Example Sentence 2
Radar facilities provided traffic advisories during the diversion to an alternate airport.