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The pilot commenced mustering at about 0500 hours, flew for three hours, then carried out routine station duties until it was time to muster another paddock. After approximately 20 minutes airborne he decided to land for a drink of water, which he carried in the helicopter. As the helicopter passed through 10-15 feet on approach, the pilot heard a loud noise, which only lasted for a moment, then the helicopter began to rotate. He lowered the collective and landed the machine upright after two revolutions. Investigation revealed that the tail rotor assembly had hit a small mulga sapling, causing the tail rotor and gearbox to separate from the helicopter. The pilot could not recall having sighted the sapling as he approached to land. Outside air temperature at the time of the accident was plus 38`C.

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General details
Date: 02 November 1988 Investigation status: Completed 
Time: 1510  
Location:4km SW Dynevor Downs Station Investigation type: Occurrence Investigation 
State: Queensland  
Release date: 28 February 1989  
Report status: Final Occurrence category: Accident 
 Highest injury level: None 
Aircraft details
Aircraft manufacturer: Robinson Helicopter Co 
Aircraft model: R22 
Aircraft registration: VH-HLI 
Serial number: 744 
Type of operation: Aerial Work 
Sector: Helicopter 
Damage to aircraft: Substantial 
Departure point:Dynevor Downs - 54 km ESE Thargomindah QLD
Departure time:1450 (approx)
Destination:Dynevor Downs QLD
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