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The pilot reported that, following landing gear retraction after takeoff, the landing gear unsafe light remained on. He reselected the gear down and obtained three green lights but the unsafe light again remained illuminated when the gear was selected up again. Suspecting that the problem was related to a microswitch, the pilot continued the flight. However, the nose gear collapsed during the landing roll. The nose gear drag brace strut connected to the landing gear strut had failed, allowing the gear leg to hang free. There was evidence that the part had been cracked for some time until it failed on gear retraction on this flight. The initial crack was induced by excessive forward load on the gear leg. However, the actual source of this load was not established. No specific inspection of that part of the aircraft was required, nor was the area easy to see during maintenance or preflight inspections. This accident was not the subject of an on-site investigation.

Download Final Report
[ Download PDF: 22KB]
General details
Date: 29 January 1989 Investigation status: Completed 
Time: 925  
Location:Mt Dore (160 km SE of Mt Isa) Investigation type: Occurrence Investigation 
State: Queensland  
Release date: 02 May 1989  
Report status: Final Occurrence category: Accident 
 Highest injury level: None 
Aircraft details
Aircraft manufacturer: Beech Aircraft Corp 
Aircraft model: 58 
Aircraft registration: VH-EGM 
Serial number: TH730 
Type of operation: Charter 
Damage to aircraft: Substantial 
Departure point:Mt Isa QLD
Departure time:0852
Destination:Mt Dore QLD
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