Occurrence types

The most common type for accidents and serious incidents from 2014 to 2025 were:

  • avionics and flight Instruments
  • landing gear and indication
  • engine failure or malfunction.
Enlarge image
A graph of the number of occurrences sorted by category, listing the number of occurrences for each event risk classification level for them
Figure 9 - All occurrences (ATSB Occurrences Level 3)
Published date: 24 April 2026
Online version available at: https://www.casa.gov.au//operations-safety-and-travel/safety-management-systems/sector-safety-risk-profiles/maintenance-activities-sector-safety-risk-profile/occurrence-types
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