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At about 300 feet agl on climb out, the pilot heard a loud bang and saw that the propeller had separated from the aircraft. He lowered the nose to regain airspeed but the aircraft descended steeply and landed heavily in a rice paddy. The engine crankshaft counterweights were found to be worn and detuned. The resulting vibrations were transferred to the propeller hub, which failed and released one of the blades. This type of detuning usually occurs as a result of large and rapid power variations, and as this aircraft was used for agricultural operations it is likely that the work requirements precipitated the failure.

Download Final Report
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General details
Date: 08 November 1983 Investigation status: Completed 
Time: 1330 Investigation type: Occurrence Investigation 
Location:Caldwell Occurrence type:Propeller/rotor malfunction 
State: New South Wales Occurrence class: Technical 
Release date: 03 May 1985 Occurrence category: Accident 
Report status: Final Highest injury level: None 
 
Aircraft details
Aircraft manufacturer: Transavia Corp Pty Ltd 
Aircraft model: PL-12 
Aircraft registration: VH-EVH 
Type of operation: Aerial Work 
Damage to aircraft: Substantial 
Departure point:Caldwell NSW
Departure time:1330
Destination:"Base Camp" (5 km SW of Caldwell)
 
 
 
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Last update 13 May 2014