Aviation safety investigations & reports

PL 12 Airtruk, VH-EVH, Caldwell NSW, 8 November 1983

Investigation number:
198301342
Status: Completed
Investigation completed

Summary

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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
[Download  PDF: 22KB]
 
 
 
General details
Date: 08 November 1983   Investigation status: Completed  
Time: 1330    
Location: Caldwell    
State: New South Wales   Occurrence type: Propeller/rotor malfunction  
Release date: 03 May 1985   Occurrence category: Accident  
Report status: Final   Highest injury level: None  

Aircraft details

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)  
Last update 13 May 2014