The following information provides an awareness of problems that might be avoided in the future. The information is based on final reports by official investigative authorities on aircraft accidents and incidents.
Jets
Faulty Frequency Changes
Airbus A319, Boeing 747. No damage. No injuries.
The flight crew of the A319, which was approaching Anchorage, Alaska, U.S., from the north, did not establish radio communication with the airport traffic (tower) controller when instructed to do so by the approach controller. The flight crew of the 747, taking off to the west, changed to the departure control radio frequency without having been instructed to do so by the tower controller. Thus, when the A319 initiated a go-around and turned into the path of the 747, the tower controller was unable to communicate with either crew.
Air traffic control radar data showed that the airplanes came within 100 ft vertically and one-third of a mile (a…
