A Qantas 737 jet was forced to make an emergency landing at Adelaide airport after a wheel bay door opened during a flight to Melbourne on Monday night.
Qantas says the plane landed without incident and all passengers were accommodated on other flights.
The incident came three days after a hole was blasted in the fuselage of a Qantas 747 during an international flight, forcing it to land in Manila.
The Herald Sun newspaper reported that the Melbourne-bound Boeing 737-800 departed from Adelaide at 6.08pm on Monday and returned 37 minutes later.
Passengers said a door had opened and caused "chaos" in the cabin.
Qantas sources said a door had not closed properly over a wheel bay and the aircraft turned back.