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The pilot was conducting cattle spotting operations, operating from an area of flood plain on the property. After takeoff on the accident flight, a right turn was commenced when the aircraft reached about 250 feet above ground level. At the completion of the turn the nose dropped but the pilot was not initially concerned due to the prevailing turbulence. He soon found that he could not raise the nose by use of elevator control. Witnesses saw the aircraft commence to dive, and the attitude of the aircraft change until it was inverted. It remained in this attitude until ground impact. On this aircraft type, the horizontal stabiliser is attached to the fuselage beam by two 5/16 inch diameter rose joints mounted vertically. The all-flying stabiliser is operated by a push-pull rod from the control column. One of the rose joints apparently failed during the flight, causing the pilot to lose control of the horizontal stabiliser.

Download Final Report
[ Download PDF: 22KB]
General details
Date: 09 October 1990 Investigation status: Completed 
Time: 930  
Location:Needle Creek (approx 10 km NE Jundah) Investigation type: Occurrence Investigation 
State: Queensland Occurrence type: Airframe - Other 
Release date: 10 April 1991 Occurrence class: Technical 
Report status: Final Occurrence category: Accident 
 Highest injury level: Serious 
Aircraft details
Aircraft manufacturer: A.W. & W.E. Peters Pty Ltd 
Aircraft model: Bunyip 
Aircraft registration: Unknown 
Serial number: N/K 
Type of operation: Sports Aviation 
Damage to aircraft: Substantial 
Departure point:Needle Creek QLD
Departure time:N/A
Destination:Needle Creek QLD
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