The Australian Transport Safety Bureau (ATSB) has reminded flight crews to remain alert and vigilant during taxiing, following an incident where a high workload situation probably led to an air traffic controller forgetting conflicting instructions had been issued.

During the 30 April 2018 incident, an Airbus A321 airliner was taxiing to the gate after landing at Melbourne Airport when the captain had to brake heavily to avoid a possible collision with a taxiing Boeing 737-800. Both aircraft had been given clearance by the surface movement controller in the control tower to proceed through the same taxiway intersection.