Aviation safety investigations & reports

American Aerolight Eagle, Holbrook NSW, 26 August 1990

Investigation number:
Status: Completed
Investigation completed


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The pilot had not flown for over four months and planned to sell the aircraft. On the day of the accident, he decided to conduct a check flight before the arrival of a prospective buyer. The aircraft took off into a very light breeze and remained in the circuit area for a short time. It then departed to the east, climbing to about 300 feet. It was then seen to commence a left, level (yawing) turn, both wings seemed to come together at the same time and the aircraft fell in a level attitude to the ground. During the sequence, the engine was heard increasing and decreasing power. It was determined that the left wing spar failed under load at about 1.6 metres from the keel tube. Following this failure, both wing spar tubes failed at the attachment points. No pre-existing fault could be found which could have initiated the left wing spar outboard failure. No other fault was found which could have contributed to the accident. Extensive engineering analysis has shown that at a weight of 160 kilograms, wing spar failure could be expected at about 2.3g. Brochures and other literature on the aircraft claim the airframe will withstand up to 8g.

Download Final Report
[Download  PDF: 22KB]
General details
Date: 26 August 1990   Investigation status: Completed  
Time: 1015    
Location: Holbrook    
State: New South Wales   Occurrence type: Airframe - Other  
Release date: 12 June 1991   Occurrence category: Accident  
Report status: Final   Highest injury level: Fatal  

Aircraft details

Aircraft details
Aircraft manufacturer Amateur Built Aircraft  
Aircraft model Aerolight Eagle  
Serial number 4364  
Type of operation Private  
Damage to aircraft Substantial  
Departure point Holbrook NSW  
Departure time 1000  
Destination Holbrook NSW  
Last update 11 March 2016