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The pilot had commenced a takeoff from a low hover when the helicopter nosed up sharply. He lowered the collective pitch lever and opened the throttle, suspecting over-pitching as the cause. The helicopter struck the ground in a slightly nose low attitude with the right hand skid while moving forwards and to the right. The skid separated and the helicopter cartwheeled forwards before coming to rest on its right side. A bellcrank from the cyclic control system of the helicopter was found fractured after the accident. Metallurgical analysis of the part found that the failure was caused by impact forces experienced during the accident sequence. The reason for the loss of pitch control was not determined.
Download Final Report
[ Download PDF: 13KB]
General details
Date: 10 February 1993 Investigation status: Completed 
Time: 16:15 CST  
 Investigation type: Occurrence Investigation 
 Occurrence type: Collision with terrain 
Release date: 09 August 1994 Occurrence class: Operational 
Report status: Final Occurrence category: Accident 
 Highest injury level: Serious 
Aircraft details
Aircraft manufacturer: Bell Helicopter Co 
Aircraft model: 47G-3B 
Aircraft registration: VH-JLB 
Sector: Helicopter 
Damage to aircraft: Substantial 
Departure point:Katherine NT
Destination:Katherine NT
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Last update 23 July 2015