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On arrival at his destination, the pilot joined the circuit on the downwind leg and used the pitch lever to signal his arrival to the ground party. He then distracted himself by cancelling his SAR watch by radio. By this time he had flown past the windsock and it was no longer in view. This distraction continued while he tried to recall the wind direction and decide if he should go around and check the windsock. Deciding to continue the approach, he positioned the aircraft on final but only carried out his final approach checks in a perfunctory manner and did not positively check the gear down indications. The aircraft subsequently landed wheels up and neither the pilot nor the passengers recalled hearing the undercarriage warning horn sound.

Detailed investigation showed that the warning horn micro-switch actuator on the throttle assembly was defective and of a faulty design. The subject component had been redesigned by the manufacturer, however, the modified component still bore the same identification number as the superseded item. In addition, the component of faulty design was still available in the spares inventory.

Download Final Report
[ Download PDF: 23KB]
 
 
 
 
General details
Date: 10 October 1988 Investigation status: Completed 
Time: 931 Investigation type: Occurrence Investigation 
Location:Pickertaramoor Occurrence type:Wheels up landing 
State: Northern Territory Occurrence class: Operational 
Release date: 28 March 1989 Occurrence category: Accident 
Report status: Final Highest injury level: None 
 
Aircraft details
Aircraft manufacturer: Beech Aircraft Corp 
Aircraft model: 36 
Aircraft registration: VH-COG 
Type of operation: Private 
Damage to aircraft: Substantial 
Departure point:Darwin NT
Departure time:0909
Destination:Pickertaramoor NT
 
 
 
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