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The pilot had completed a number of take-offs and landings from the one-way agricultural strip prior to the final flight. On each of the previous flights the pilot had turned right after take-off, climbed out and and carried out spreading operations over ground that fell away from the strip. On the final flight the pilot was to carry out spreading on a paddock to the left and uphill from the strip. The pilot inspected the rising ground and assessed that the aircraft's performance was sufficient to outclimb the rising ground with safety. The final take-off was normal until the pilot had reduced power, raised the flaps and commenced a slight left hand turn. At that point the pilot observed that the aircraft appeared to lose height, relative to the ground, and he considered dumping the load and landing the aircraft on the up slope. He rejected both of these options as he considered that obstructions caused by a fence and a powerline would make the situation worse. Before the pilot could take any further action the aircraft's mainwheels touched down, the aircraft bounced back into the air, collided with the fence and came to a stop in a recently ploughed and planted paddock, just short of the powerline. At the time of take-off, wind conditions may have created slight downdrafts. The gradient of the rising ground was about 7 percent. With optimum conditions (airspeed control, engine performance, etc.), at the prevailing density altitude and aircraft weight, the aircraft could have been expected to outclimb the rising ground. In this case the conditions were not optimum and the aircraft flew into the ground and fence.

Download Final Report
[ Download PDF: 23KB]
 
 
 
 
General details
Date: 27 July 1988 Investigation status: Completed 
Time: 1630 Investigation type: Occurrence Investigation 
Location:20 km South of Wongan Hills Occurrence type:Collision with terrain 
State: Western Australia Occurrence class: Operational 
Release date: 13 February 1989 Occurrence category: Accident 
Report status: Final Highest injury level: None 
 
Aircraft details
Aircraft manufacturer: Cessna Aircraft Company 
Aircraft model: 188 
Aircraft registration: VH-RYO 
Serial number: 18801353 
Type of operation: Aerial Work 
Damage to aircraft: Substantial 
Departure point:20 km South of Wongan Hills WA
Departure time:N/A
Destination:20 km South of Wongan Hills WA
 
 
 
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