Investigation: 199003085 - Robinson R22-Beta, VH-JNT, Coolangatta Aerodrome QLD, 16 July 1990

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The student helicopter pilot was at an early stage of his training, however, he was a very experienced fixed-wing pilot. Before conducting some circuits he was given practice in hovering. After this the instructor took over to demonstrate the manoeuvrability of the helicopter with the rotor disc steady. During this hovering the height increased to about 30 feet before the aircraft began to spin rapidly in an anti-clockwise direction and dive towards the ground. The low rotor rpm warnings sounded during the descent. Impact evidence showed that the helicopter had struck the ground at a high rate of descent while travelling forward slowly. No signs of engine malfunction were found.

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General details
Date:	16 July 1990	Investigation status:	Completed
Time:	1706
Location:	Coolangatta Aerodrome	Investigation type:	Occurrence Investigation
State:	Queensland	Occurrence type:	Loss of control
Release date:	12 February 1991	Occurrence class:	Operational
Report status:	Final	Occurrence category:	Accident
		Highest injury level:	Serious

Aircraft details
Aircraft manufacturer:	Robinson Helicopter Co
Aircraft model:	R22
Aircraft registration:	VH-JNT
Serial number:	1108
Type of operation:	Flying Training
Sector:	Helicopter
Damage to aircraft:	Substantial
Departure point:	Coolangatta QLD
Departure time:	1640
Destination:	Coolangatta QLD