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The pilot held the aircraft on the brakes and did his run up checks then commenced take off to the west with a ten knot crosswind from the left. As the tail lifted the aircraft commenced a swing to the left which the pilot was unable to control with full right brake and rudder. He closed the throttle, the aircraft swung sharply left and the right main leg and tail wheel leg collapsed. Inspection of the aircraft showed that the right brake torque plate was attached by welds, one of which failed due to poor quality and low penetration of the weld. This allowed a degree a movement of the torque plate but did not appear to impair the brake operation. One of the three left main wheel through bolts had failed, following 90 per cent progressive fracture in a manner typical of low stress high cycle fatigue cracking. This allowed the wheel halves to be forced slightly apart at this section, causing distortion of the brake disc and drag contact with the brake pads at each wheel rotation. With operation on the ground the effect would have been increased due to the weight of the aircraft and rolling contact with minor strip surface undulations. It was also established that the left brake could be applied normally but that sometimes when the brake was released the brake remained partly applied. The circumstances of the investigation were such that the reason for this was unable to be determined. The uncontrolled swing on take off most likely resulted from the combined effects of the cross wind, the failed wheel through bolt and unidentified defect which caused the left brake not to release fully after it had been applied.

Download Final Report
[ Download PDF: 22KB]
General details
Date: 11 November 1987 Investigation status: Completed 
Time: 1100  
Location:1 km W Elmore Investigation type: Occurrence Investigation 
State: Victoria Occurrence type: Loss of control 
Release date: 30 March 1988 Occurrence class: Operational 
Report status: Final Occurrence category: Accident 
 Highest injury level: None 
Aircraft details
Aircraft manufacturer: Cessna Aircraft Company 
Aircraft model: 188 
Aircraft registration: VH-KQB 
Serial number: 188-0244 
Type of operation: Aerial Work 
Damage to aircraft: Substantial 
Departure point:Elmore VIC
Departure time:N/A
Destination:Elmore VIC
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