Wheels up landing involving a Piper 600A, VH-HMV, Coonabarabran Aerodrome, New South Wales, on 27 October 1998
Abnormal engine indications Pilatus PC-12, VH-FMC, 19 km south-south-east of Port Augusta, 20 October 1998
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