A Qantas Airbus A321 preparing to depart to the Gold Coast braked to avoid another Qantas aircraft, a Boeing 737, that had arrived from Melbourne on Tuesday (Aug 18).

Two Qantas aircraft were cleared to use the same taxiway and only stopped after crew observed the planes approaching – the fourth similar issue since July 28.

Investigators are examining an incident on Tuesday where two Qantas flights were given clearance to take clashing routes.