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The pilot reported that shortly after the aircraft became airborne, he noted a substantial change in propeller pitch noise and an associated loss of performance. Insufficient runway remained to permit a landing straight ahead. The pilot raised the landing gear and flap, however the aircraft failed to climb and the airspeed decayed to below the safe single engine speed. The take-off attempt was abandoned and a forced landing was carried out off the end of the runway. The rear fuselage impacted heavily on a dirt bank 78 metres beyond the runway threshold, following which the aircraft passed through a fence and slid for a further 78 metres before coming to rest. No fault was subsequently found with the engines or systems of the aircraft which might have explained the reported loss of performance. Calculations indicated that the weight of the aircraft at the time of take-off was close to the maximum allowable, but the centre of gravity was aft of the rear limit. Several of the passengers indicated that the aircraft rotated sharply to an unusually high nose attitude as it became airborne. The pilot's action in raising the flap when he perceived the power loss was contrary to the emergency procedures for the type, and probably resulted in sink and a further reduction in airspeed.

Download Final Report
[ Download PDF: 22KB]
 
 
 
 
General details
Date: 12 April 1985 Investigation status: Completed 
Time: N/A Investigation type: Occurrence Investigation 
Location:Port Macquarie  
State: New South Wales  
Release date: 05 January 1987 Occurrence category: Accident 
Report status: Final Highest injury level: Serious 
 
Aircraft details
Aircraft manufacturer: Piper Aircraft Corp 
Aircraft model: PA-31 
Aircraft registration: VH-AOX 
Type of operation: Air Transport Low Capacity 
Damage to aircraft: Destroyed 
Departure point:Port Macquarie NSW
Departure time:N/A
Destination:Coffs Harbour NSW
 
 
 
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