A Failure to Comply incident is defined as an air safety
incident in which flight crew fail to follow an ATS clearance in
controlled airspace.
During 1994 BASI recorded an increase in the frequency of
incidents involving failures to comply with ATS clearances. This
trend continued in 1995 and the largest increase appeared to be
associated with the introduction of new arrival and departure
procedures at Sydney airport. The Bureau conducted a preliminary
study to confirm these trends and concluded that a comprehensive
study was necessary.
This report draws on data collected during the comprehensive
study of incidents in June, July and August of 1996. The primary
data for this study was received through ESIRs and questionnaires
completed by the pilots of aircraft involved in FTC incidents.