Aviation safety investigations & reports

Inadvertent landing gear retraction, Aero Commander, VH-YJS, Toowoomba Airport, Qld, 21 August 2012

Investigation number:
Status: Completed
Investigation completed


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On 21 August 2012, at about 1430 Eastern Standard Time, an Aero Commander 500S registered VH-YJS (YJS) departed Charleville Airport, Queensland for Brisbane Airport via, Roma, Dalby and Toowoomba on a freight only charter flight under the IFR. The pilot was the only person on board.

During the landing roll the landing gear was inadvertently retracted and the lower fuselage contacted the runway.  The pilot exited the aircraft without injury however the lower fuselage of the aircraft was damaged. 

A manual safe pin was incorporated as a design feature to prevent inadvertent retraction of the landing gear. However operation of the gear lever and safe pin together had become an automatic response by the pilot and the effectiveness of the safe pin as a countermeasure reduced. Pilots are reminded to positively identify any control lever before actioning. 

Aviation Short Investigation Bulletin – Issue 14


Download Final Report
[Download  PDF: 130KB]
Alternate: [Download  DOC: 2.17MB]
General details
Date: 21 August 2012   Investigation status: Completed  
Time: 1530 EST   Investigation level: Short - click for an explanation of investigation levels  
Location   (show map): Toowoomba Airport    
State: Queensland   Occurrence type: Incorrect configuration  
Release date: 20 December 2012   Occurrence category: Serious Incident  
Report status: Final   Highest injury level: None  

Aircraft details

Aircraft details
Aircraft manufacturer Aero Commander  
Aircraft model 500  
Aircraft registration VH-YJS  
Serial number 3315  
Type of operation Charter  
Damage to aircraft Minor  
Departure point Dalby, QLD  
Destination Toowoomba, QLD  
Last update 14 November 2018