Plain English Meaning

A radio service at an airport without a control tower, run by a private operator (often the fixed base operator), that gives pilots helpful information like wind, runway in use, and known traffic. They share what they know — they do not control the traffic.

Full Definition

A radio station at a nontowered airport, operated by a private party rather than the FAA or another government agency, that transmits airport advisory information to arriving and departing aircraft on a published common frequency. The operator is not an air traffic controller and does not issue or control instructions; the station provides such as known traffic, wind, favored , and to assist pilots in making their own decisions.