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The pilot was undergoing a routine currency check with a flying instructor. As part of the check the pilot was asked to carry out a hover taxiing autorotation. The power was reduced to flight idle with the aircraft about 5 feet above ground level and moving forward at taxiing speed. The pilot carried out what was considered to be a normal landing, however, shortly after touchdown a loud bang was heard and the tail rotor and stabiliser were seen to land in front of the aircraft. The tailboom had been severed by the mainrotor during the landing. Indentations left by the skids in the soft ground indicated that the aircraft moved forward about 4 metres after initial ground contact. The main rotor was found to have an excessive static droop angle which reduced main rotor tip clearance from the tailboom by approximately 75 millimetres. This, in combination with attitude changes during the touchdown on the soft surface, rotor tilt and reduced rotor RPM, was contributory to the development of the accident.

Download Final Report
[ Download PDF: 22KB]
 
 
 
 
General details
Date: 08 February 1989 Investigation status: Completed 
Time: 724 Investigation type: Occurrence Investigation 
Location:Archerfield Occurrence type:Hard landing 
State: Queensland Occurrence class: Operational 
Release date: 09 August 1989 Occurrence category: Accident 
Report status: Final Highest injury level: None 
 
Aircraft details
Aircraft manufacturer: Hughes Helicopters 
Aircraft model: 369 
Aircraft registration: VH-HUE 
Serial number: 790106S 
Type of operation: Flying Training 
Sector: Helicopter 
Damage to aircraft: Substantial 
Departure point:Archerfield QLD
Departure time:N/A
Destination:Archerfield QLD
 
 
 
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