Aviation safety investigations & reports

Robinson R22 Beta, VH-HBH, Snowdrop Creek NT ( 130 km NE Katherine ), 23 September 1990

Investigation number:
Status: Completed
Investigation completed


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The pilot reported that he felt a "kick" in the tail rotor which disappeared immediately. A short time later, the anomaly returned and the pilot elected to carry out a precautionary landing. However, the engine suddenly failed and the pilot had to use most of the rotor inertia to reach a suitable landing area. The following attempt to cushion the landing with the use of collective input was ineffective and a heavy landing ensued. An inspection of the aircraft by the operator revealed traces of water in the carburettor fuel bowl and this is believed to have caused the engine failure. No other defects or anomalies were reported.

Download Final Report
[Download  PDF: 22KB]
General details
Date: 23 September 1990   Investigation status: Completed  
Time: N/K    
Location   (show map): Snowdrop Creek NT ( 130 km NE Katherine )    
State: Northern Territory    
Release date: 05 April 1991   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-HBH  
Serial number 557  
Type of operation Aerial Work  
Sector Helicopter  
Damage to aircraft Substantial  
Departure point Eva Valley NT  
Departure time N/K  
Destination Eva Valley NT