Aviation safety investigations & reports

Bell 47-G3B1, VH-CSI, Battle Creek NT (55km NE Victoria River Downs NT), 17 April 1988

Investigation number:
Status: Completed
Investigation completed


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The pilot was mustering cattle when the helicopter yawed to the right. Believing there was a tail rotor failure, the pilot turned to the left towards a clearing to land as soon as possible. The landing was heavy, and the main rotors severed the tail boom. Investigation revealed that the initial yaw to the right had occurred when the main rotor blades struck trees. The pilot did not realise during the short time interval between the decision to land and the landing itself, that if there had been a tail rotor failure he would not have been able to maintain normal control when positioning for landing.

Download Final Report
[Download  PDF: 22KB]
General details
Date: 17 April 1988   Investigation status: Completed  
Time: 1425    
Location: Battle Creek NT (55km NE Victoria River Downs NT)    
State: Northern Territory    
Release date: 24 June 1988   Occurrence category: Accident  
Report status: Final   Highest injury level: None  

Aircraft details

Aircraft details
Aircraft manufacturer Bell Helicopter Co  
Aircraft model 47  
Aircraft registration VH-CSI  
Serial number 6504  
Type of operation Aerial Work  
Sector Helicopter  
Damage to aircraft Substantial  
Departure point Battle Creek NT  
Departure time N/K  
Destination Battle Creek NT