The ATSB is investigating a separation occurrence involving a Jetstar Airbus A320, registered VH-VGP, and a privately operated Jabiru J230-D, registered 24-7456, near Ballina Byron Gateway Airport, New South Wales (NSW), on 28 November 2020.

While the A320 was approaching runway 06 to land at Ballina Byron Gateway Airport, the J230-D was tracking south toward Evans Head Airport, NSW. About 22 km south-west of Ballina Byron Gateway Airport, the two aircraft's flight paths intersected, resulting in the reported generation of a traffic collision avoidance system (TCAS) traffic advisory indication to the Jetstar crew. The A320 passed beneath the J230-D and continued to Ballina.

The evidence collection phase of the investigation will include reviewing recorded communications and flight data, and interviews with the flight crew.

A final report will be released at the conclusion of the investigation. Should a critical safety issue be identified during the course of the investigation, the ATSB will immediately notify relevant parties, so that appropriate safety action can be taken.