A technical issue with air traffic control communications systems has created flight chaos at three major airports around Australia.
Airservices Australia confirmed it was working to address an issue with the systems at its Melbourne Air Traffic Service Centre on Tuesday.
An Airservices Australia spokesman said safety, air traffic control and communication between air traffic controllers and aircraft were unaffected.
“The main operational capability being impacted is that we have reverted to manual entering of flight plans in some circumstances,” a spokesman said.
“To maintain safety while we work to rectify the issue, traffic management measures have been implemented at Melbourne, Perth, and Adelaide Airports.”
Arrivals at Melbourne Airport experienced delays for more than an hour from 5pm on Tuesday afternoon while technicians worked to fix the problem.
A Perth Airport spokesman confirmed some arrivals and departures had been delayed.
An Adelaide Airport spokesman said some flights were delayed up to an hour and would continue to have a knock on effect for later flights.
