Definition
A continuous radio broadcast of non-control flight information at certain aerodromes that do not have an air traffic control tower. AFIS provides pilots with current details such as wind, altimeter setting, runway in use, traffic information, and other relevant airport conditions, but does not issue control instructions or clearances.
Plain English
A radio service at smaller airports that gives pilots up-to-date information about the airport and weather, but does not tell aircraft what to do.
Context Anchor
Pilots may encounter AFIS when checking local airport information before contacting flight service or before operating at an airport where the broadcast is provided.
Derivation
The word 'automatic' here highlights that the service runs continuously and routinely, not that it is unmanned. Many AFIS stations are staffed by a flight information officer; the term emphasizes that the information is always available on the published frequency rather than being requested case by case.
Why Pilots Care
Gives pilots essential safety information at remote or uncontrolled airports where no staffed service is available.
Intuition Check
Do not read “service” as meaning someone is actively controlling you. AFIS is information only; the pilot still remains responsible for decisions and must get any required clearance or instruction from the proper source.
Example Sentence 1
Before joining the circuit, the pilot tuned to the AFIS frequency to get the current wind and runway in use.
Example Sentence 2
AFIS broadcasts updated runway conditions and any temporary hazards so pilots could plan their approach safely.