ATSB Publishes Four Preliminary Reports on Sydney Airport Conflicts

The Australian Transport Safety Bureau (ATSB) has released preliminary reports on four incidents at Sydney Airport between July and August 2026, two runway incursions and two taxiing conflicts. None caused injuries to passengers, though one cabin crew member suffered a broken wrist. The reports were published on 30 September alongside a data analysis of runway confliction occurrences at major Australian airports.

Two runway incursions

On 27 July, a Qantas Boeing 737-800 operating QF124 entered the protected area of runway 34L following an air traffic control handover, while a QantasLink Dash 8 (QLK424D) was landing. The two aircraft came to rest about 120 metres apart. The ATSB notes that the incoming controller had assumed the Dash 8 would leave the runway at rapid exit taxiway B9, but the aircraft passed it at 88 knots. No injuries or damage were reported.

On 9 August, a Virgin Australia Boeing 737 (VA555) was cleared for take-off while a Qantas 737 (QF728) was crossing runway 34L. The Virgin aircraft was still around 1.3 km from the runway when the clearance was issued. A training instructor spotted the conflict and the take-off was cancelled after the engines had reached 33 per cent N1. The ATSB records that the aerodrome controller was undergoing familiarisation training at the time.

Two taxiing events

Also on 9 August, a Jetstar Airbus A320 (JS402) braked hard with less than 30 metres separation from a Qatar Airways Boeing 777 that was being towed near taxiways Golf and Charlie. The tow bar deformed, causing minor damage, and a Jetstar cabin crew member sustained a broken wrist. The preliminary report says the tug driver followed the wrong Jetstar aircraft without identifying JS402.

On 18 August, a Qantas A321 (QF405) and a Qantas 737 (QF589) converged near the taxiway C and L intersection. QF589 passed in front of the A321 at around 0809 and the A321 captain applied additional braking to avoid a conflict. The bureau says the two crews had been given different sequence information.

What the ATSB is examining

The bureau says its investigations are looking at air traffic control coordination, controller handovers, taxi clearances, runway-crossing procedures, training and supervision. It has also pointed to staffing and resourcing within the Sydney tower as a recurring area of enquiry, including the practice of combining operational roles, routine use of overtime to fill shifts, and training or supervision being carried out alongside operational duties.

The ATSB has been explicit that it has not determined direct causation. Preliminary reports set out the facts established so far and do not contain findings or contributing factors in the final sense; those will follow in the final reports for each investigation. Two further investigations into Sydney coordination and conflict events remain open and were not covered by this batch of releases.

For airlines and ground handlers, the towing event is a useful reminder that apron and taxiway procedures matter as much as runway clearances. For regulators and the air navigation provider, the focus will be on whether the staffing and handover themes the ATSB has flagged show up in the final analysis.