Cessna 150-G, VH-RXI, 186 km north-west of Meekatharra, Western Australia, on 15 October 1990
Miscellaneous - Other involving Aerospatiale SA365C-2, VH-HCF, 5 km west of Prospect, New South Wales, on 14 October 1990
Piper PA25-235, VH-HGQ, "Strath Avon", 46 km south-west of Nyngan, New South Wales, on 14 October 1990
Collision with terrain involving Piper PA32R, VH-RFW, 26 km north-east of Kempsey, New South Wales, on 11 October 1990
Australian Ultralight Industries Bunyip, Needle Creek, (approx 10 km north-east of Jundah), Queensland, on 9 October 1990
Collision with terrain involving a Cessna 310R, VH-BKR, Toowoomba, Queensland, on 9 October 1990
Aerospatiale AS355, VH-NJL, 4 km south of Guilderton, Western Australia, on 4 October 1990