Beechcraft A23-24 Super III Musketeer — Airworthiness Directives

This document is a comprehensive survey of serious aircraft accidents involving fatigue fractures, specifically focusing on fixed-wing aircraft. It was prepared by the National Aeronautical Establishment in Ottawa and published in April 1983. The report identifies a total of 1,466 fixed-wing accidents since 1927 that were related to fatigue fractures, resulting in 1,861 fatalities. The document serves as a critical resource for understanding the implications of fatigue fractures in aviation safety, highlighting the most common causes of accidents and providing detailed statistical analyses. It is particularly relevant for aviation safety professionals, engineers, and pilots who are interested in accident prevention and aircraft maintenance.

• A total of 1,466 fixed-wing accidents related to fatigue fractures were identified since 1927.
• These accidents resulted in 1,861 fatalities.
• Engine/transmission failure and landing gear failure were the most common causes of accidents.
• The average number of fixed-wing fatigue accidents per year is approximately 69.
• The report categorizes accidents by failure type and aircraft type.