Aviation safety investigations & reports

Collision with terrain - Robinson R22 helicopter, VH-RTB, 62 km south Maningrida Airport, NT, 29 September 2011

Investigation number:
Status: Completed
Investigation completed


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On 29 September 2011, a Robinson Helicopter, R22 Beta II helicopter (R22), registered VH-RTB, was conducting aerial stock mustering operations about 43 km east-south-east of Maningrida, Northern Territory.

While guiding a herd of buffalo into the yarding area, at about 20 ft above ground level, the helicopter's tail rotor struck a tree. The helicopter landed heavily and sustained serious damage.

This accident not only highlights the challenging nature of aerial stock mustering operations, but also the benefits of utilising resources such as a ground support teams, when operating within the yarding area.

Download Final Report - Bulletin
[Download  PDF: 5.43MB]
General details
Date: 29 September 2011   Investigation status: Completed  
Time: 0950 CST   Investigation level: Short - click for an explanation of investigation levels  
Location   (show map): 62 km south Maningrida Airport    
State: Northern Territory   Occurrence type: Collision with terrain  
Release date: 12 December 2011   Occurrence category: Accident  
Report status: Final   Highest injury level: None  

Aircraft details

Aircraft details
Aircraft manufacturer Robinson Helicopter Co  
Aircraft model R22  
Aircraft registration VH-RTB  
Serial number 3990  
Type of operation Aerial Work  
Sector Helicopter  
Damage to aircraft Serious  
Departure point Maningrida, NT  
Last update 14 November 2018