Breakdown of co-ordination involving a Israel Aircraft Industries Ltd 1125, VH-FIS, 56 km south-south-west of Brisbane Aerodrome, Queensland, on 5 September 1997

The aircraft was incorrectly co-ordinated whilst transiting Amberley military CTR. Amberley ATC are required to co-ordinate an estimate for Brisbane for traffic transiting their airspace for landing at Brisbane. The pilot is then assigned a standard transfer level of 4,000 ft. prior to his transfer to Brisbane approach.

The first co-ordination from Amberley in this case, was an attempt to handoff FIS to Brisbane departures when the aircraft was west of Amberley at flight level 150. The departures controller accepted the aircraft to avoid delays. The aircraft continued on an east/ south-easterly heading from Amberley and entered approach south's airspace without co-ordination from Amberley. The pilot eventually contacted departures, and was turned back into the departure controller's airspace for processing for a right circuit on runway 19. There was no breakdown in separation.