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Shortly after full power was applied for takeoff, the pilot noticed that the aircraft was tracking to the left of the strip centre. He turned gently right to correct the situation and the nosegear leg collapsed soon after. Metallurgical examination concluded that the nosegear leg mounting trunnions contained fatigue cracks. One trunnion had failed during this takeoff. The aircraft had accrued almost 20,000 hours and an inspection recommended by the aircraft manufacturer less than one year prior to the accident had not been conducted. Had the inspection been conducted, the fatigue cracks should have been detected. Some time after this aircraft was manufactured the manufacturer altered the design of the mounting trunnions to make them stronger.

Download Final Report
[ Download PDF: 22KB]
General details
Date: 17 August 1990 Investigation status: Completed 
Time: 1325  
Location   (show map):Pormpuraaw East Investigation type: Occurrence Investigation 
State: Queensland  
Release date: 09 May 1991  
Report status: Final Occurrence category: Accident 
 Highest injury level: None 
Aircraft details
Aircraft manufacturer: Cessna Aircraft Company 
Aircraft model: 404 
Aircraft registration: VH-TMU 
Serial number: 404-0205 
Type of operation: Air Transport Low Capacity 
Damage to aircraft: Substantial 
Departure point:Pormpuraaw East QLD
Departure time:N/A
Destination:Cairns QLD
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