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The pilot had refuelled the aircraft to capacity with mogas, and then carried out two flights of about 20 minutes duration each. Takeoff for the third flight was into wind, and towards a rain shower. At about 20 feet above the ground the aircraft began to sink. The pilot lowered the nose and applied full power, but no change in engine note was detected and it appeared that full power was not being delivered. The sink continued, and the pilot commenced a gentle turn to the left to avoid a power line beyond the end of the strip. When ground contact was imminent the pilot closed the throttle and landed straight ahead into an open grass paddock. During the landing roll the aircraft collided with a mound of earth. The pilot later advised that he had not had time to dump the load before the aircraft was almost in ground contact, and he then anticipated that a safe landing was possible. He also stated that prior to this flight he had considered ceasing operations, but was influenced to continue because the weather at the treatment area was favourable, and because a further load of chemical had already been mixed. No defects were discovered with the engine, and a test carried out using mogas revealed that the engine was capable of developing full power. The quality of the fuel being used at the time of the accident could not be determined as the fuel tank was ruptured and the entire contents were lost. The engine is not approved for operation on mogas. It was possible the rain shower near the end of the strip may have generated a wind effect sufficient to degrade the climb performance of the aircraft.

Download Final Report
[ Download PDF: 23KB]
 
 
 
 
General details
Date: 19 January 1989 Investigation status: Completed 
Time: 1810 Investigation type: Occurrence Investigation 
Location:Womblebank (60 km West of Injune)  
State: Queensland  
Release date: 19 June 1989 Occurrence category: Accident 
Report status: Final Highest injury level: None 
 
Aircraft details
Aircraft manufacturer: Grumman American Aviation Corp 
Aircraft model: G-164 
Aircraft registration: VH-CCO 
Serial number: 4775 
Type of operation: Aerial Work 
Damage to aircraft: Substantial 
Departure point:Womblebank QLD
Departure time:N/A
Destination:Womblebank QLD
 
 
 
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