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The pilot had been mustering for 2.5 hours. He then landed to refuel the aircraft and collect the passengers. As the pilot subsequently attempted to climb the aircraft, out of ground effect, he noticed the rotor and engine rpm had decayed. The pilot attempted a run-on landing, however, the aircraft landed heavily, the main rotor struck the tail boom and the tail shaft was severed. The pilot did not report any engine or aircraft system defect which might have contributed to the accident. He had relatively limited experience on the aircraft type and in the type of operation being conducted. The pilot's description of a decay in rotor rpm accompanied by a decay in engine rpm indicates overpitching of the main rotor. The pilot's general experience coupled with the hot/heavy/high and relatively confined circumstances of this take-off would have contributed to his attempting to introduce more collective pitch than the power available was able to support. This accident was not the subject of an on-site investigation.

Download Final Report
[ Download PDF: 22KB]
 
 
 
 
General details
Date: 25 November 1988 Investigation status: Completed 
Time: 1100 Investigation type: Occurrence Investigation 
Location:Mt Florance - 150km South East Karratha Occurrence type:Hard landing 
State: Western Australia Occurrence class: Operational 
Release date: 16 March 1989 Occurrence category: Accident 
Report status: Final Highest injury level: None 
 
Aircraft details
Aircraft manufacturer: Hughes Helicopters 
Aircraft model: 269 
Aircraft registration: VH-HRR 
Serial number: 630240 
Type of operation: Private 
Sector: Helicopter 
Damage to aircraft: Substantial 
Departure point:Mt Florance WA
Departure time:1100
Destination:Mt Florance WA
 
 
 
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