Aviation safety investigations & reports

Beech 200, VH-IBD, Cairns QLD, 23 October 1990

Investigation number:
Status: Completed
Investigation completed


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The pilot reported that when he selected the landing gear up after takeoff, it remained down and the three green lights remained illuminated. After checking the circuit breakers, several more attempts were made to retract the landing gear without success. During the subsequent landing, the landing gear collapsed and the aircraft settled onto its underside. The only fault revealed during examination of the landing gear system was varying resistance in the right landing gear safety switch (the squat switch). This intermittent fault could have prevented the landing gear from retracting. The pilot reported that he conducted a smooth landing because of the nature of the problem. Despite that, it could have been sufficient to free the switch and allow the retraction cycle to begin as the oleos were compressed but before the safety switch was made. However, this could only have happened if the langing gear selector was in the up position.

Download Final Report
[Download  PDF: 22KB]
General details
Date: 23 October 1990   Investigation status: Completed  
Time: 1735    
Location: Cairns    
State: Queensland    
Release date: 12 June 1991   Occurrence category: Accident  
Report status: Final   Highest injury level: None  

Aircraft details

Aircraft details
Aircraft manufacturer Beech Aircraft Corp  
Aircraft model 200  
Aircraft registration VH-IBD  
Serial number BB-297  
Type of operation Charter  
Damage to aircraft Substantial  
Departure point Cairns QLD  
Departure time 1725  
Destination Mareeba QLD