Collision with terrain involving an Air Tractor AT-301, VH-FAQ, 10 km south-east of Crystal Brook (ALA), South Australia, on 9 October 1998
Turbulence/windshear/microburst involving an American Blimp Corporation A-60+, VH-ZIC, Essendon Aerodrome, Victoria, on 28 September 1998
Breakdown of co-ordination between a Boeing Co 737-476, VH-TJG and a Pilatus PC-12, VH-FMC, Adelaide Airport, South Australia, on 26 September 1998