Snow Commander 600 S2D, VH-SCY, Nandowrie, 100 km south-west of Emerald, Queensland, on 21 June 1990
Piper PA-25-235 Pawnee, VH-OMA, 15 km north-west of Tumby Bay, South Australia, on 21 June 1990
Piper PA-25-235, VH-BCP, 15 km north-west of Tumby Bay, South Australia, on 21 June 1990
Robinson R22-HP, VH-KHI, Caloundra, Queensland, on 20 June 1990
Piper PA-23, VH-DCQ, Port Hurd, Northern Territory, on 19 June 1990
Cessna 177-RG, VH-XBL, 7 km north-west of Longreach, Queensland, on 16 June 1990
Robinson R22, VH-HEU, Wave Hill Station, Northern Territory, on 16 June 1990
Robinson R22-Beta, VH-EFK, North Head Station (65 km south-west of Georgetown), Queensland, on 15 June 1990
Loss of control involving Piper PA-38-112, VH-ABQ, Paraburdoo, Western Australia, on 13 June 1990
Hughes 269C, VH-CHM, "Koonawarra" property near Moree, New South Wales, on 12 June 1990
Beech A36, VH-MAO, 1.6 km south-east of Medowie, New South Wales, on 11 June 1990
Beech B76, VH-HZG, Bankstown, New South Wales, on 11 June 1990