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The pilot had just washed the helicopter, and carried out a circuit to dry the machine. At the completion of the circuit he intended to carry out a practice autorotation. The pilot reported that after turning onto final he noticed that the wind direction had altered so he decided to extend the final leg and selected a different touchdown point. As he flared the aircraft he noticed that the ground sloped and decided to apply some collective and touchdown on a flatter surface. The aircraft touched gently but the pilot reports that the main rotor RPM had decayed and a violent resonance occurred. The subsequent inspection of the tailboom found that the skin had been rippled near the forward end.

Download Final Report
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General details
Date: 11 September 1988 Investigation status: Completed 
Time: 1000  
Location:Emerald Investigation type: Occurrence Investigation 
State: Queensland Occurrence type: Miscellaneous - Other 
Release date: 01 November 1988 Occurrence class: Operational 
Report status: Final Occurrence category: Accident 
 Highest injury level: None 
Aircraft details
Aircraft manufacturer: Bell Helicopter Co 
Aircraft model: 206 
Aircraft registration: VH-MQA 
Serial number: 45645 
Type of operation: Private 
Sector: Helicopter 
Damage to aircraft: Substantial 
Departure point:Emerald QLD
Departure time:N/K
Destination:Emerald QLD
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