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The pilot commenced the take-off run and confirmed that full power was selected. At an indicated airspeed of 90 knots, he rotated the aircraft and waited for the performance instruments to indicate that a positive rate of climb and the single engine climb speed had been achieved. The pilot reported that the aircraft did not accelerate beyond an airspeed of 95 knots and a positive rate of climb was not obtained. He stated that he retracted the gear, to avoid having it snag the boundary fence, and then realised that the left engine was losing power and altitude was not being maintained. The pilot then closed the throttles and the aircraft landed in open country beyond the aerodrome boundary. An inspection of the aircraft did not detect any faults in the engines or other aircraft systems that could have contributed to the occurrence. An examination of the propellers indicated that both engines were delivering power at the time the aircraft struck the ground. The cause of this accident remains undetermined.

Download Final Report
[ Download PDF: 22KB]
 
 
 
 
General details
Date: 03 March 1986 Investigation status: Completed 
Time: 1940 Investigation type: Occurrence Investigation 
Location:Derby Occurrence type:Collision with terrain 
State: Western Australia Occurrence class: Operational 
Release date: 13 May 1987 Occurrence category: Accident 
Report status: Final Highest injury level: None 
 
Aircraft details
Aircraft manufacturer: Piper Aircraft Corp 
Aircraft model: PA-31 
Aircraft registration: VH-WDY 
Type of operation: Aerial Work 
Damage to aircraft: Substantial 
Departure point:Derby WA
Departure time:1940
Destination:Broome WA
 
 
 
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