Forced/precautionary landing involving a Robinson R44, VH-OCT, 8 km south-west of Walkerville, Victoria, on 4 April 1998
Collision on ground involving a Piper PA-28-181, VH-DJQ, Cobden (ALA), Victoria, on 26 March 1998
Loss of control involving a Kawasaki Heavy Industries G3B-KH4, VH-DEF, 20 km west-north-west of Mackay Aerodrome, Queensland, on 24 March 1998
Loss of separation involving a Boeing 737-377, VH-CZN and Airbus A320-211, VH-HYB, 185 km west-south-west of Canberra Aerodrome, New South Wales, on 22 March 1998
Collision with terrain involving a Robinson R22, VH-KKG, Mangalore Aerodrome, Victoria, on 21 March 1998
Collision with terrain involving a Eagle Aircraft Australia EAGLE X-TS, VH-FPV, Reola Station, New South Wales, on 20 March 1998
Loss of separation involving a Beech Aircraft Corp B200C, VH-AMM and Aeronautica Macchi S.p.A MB-326, Unknown, Williamtown Aerodrome, New South Wales, on 19 March 1998
Navigation - Other involving a Glaser-Dirks DG-400, VH-XJC, 56 km west of Mittagong (ALA), New South Wales, on 15 March 1998