Loss of separation involving Boeing 737-376, VH-TAH and Boeing 737-377, VH-TAF, 296 km north-east of Perth, Western Australia, on 11 July 1991
Total power loss involving Cessna 210L, VH-TRD, 148 km west of Tindal (14`48' S - 130`52' E), Northern Territory, on 4 July 1991
Loss of control involving Cessna 150L, VH-IQB, 16 km south of Landor Station, Western Australia, on 4 June 1991
Ditching involving a Puma SA 330J, VH-WOF, Mermaid Sound, Western Australia, on 12 May 1991
Wirestrike involving Robinson R22-Beta, VH-JXV, Nithsdale Station, 90 km south-west of McKinlay, Queensland, on 28 April 1991
Loss of control involving Skycraft Scout, 10 km north of Nyabing, Western Australia, on 28 April 1991
Loss of control involving an Agusta A109A II, VH-JVH, Sydney Airport, New South Wales, on 25 April 1991