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Following a period a local familiarisation flying, the landing was selected down, pre-landing checks were completed and a green down-and-locked indication obtained. The aircraft subsequently landed on the lower fuselage, main landing gear doors, flaps and propeller tips. During the investigation, a retraction test and partial disassembly of the landing gear mechanism confirmed that the extension cycle had terminated prematurely. This termination was caused by interference with the down limit and indicator microswitches mounting plate by the up limit actuating screw. Movement and activation of these switches, terminated the gear down travel and presented a false gear down-and-locked indication. Only the main landing gear doors extended before the cycle stopped.

Download Final Report
[ Download PDF: 22KB]
 
 
 
 
General details
Date: 18 February 1990 Investigation status: Completed 
Time: 1745 Investigation type: Occurrence Investigation 
Location:Tindal Occurrence type:Wheels up landing 
State: Northern Territory Occurrence class: Operational 
Release date: 05 June 1990 Occurrence category: Accident 
Report status: Final Highest injury level: None 
 
Aircraft details
Aircraft manufacturer: Beech Aircraft Corp 
Aircraft model: 58 
Aircraft registration: VH-EZB 
Serial number: TH 97 
Type of operation: Flying Training 
Damage to aircraft: Substantial 
Departure point:Tindal NT
Departure time:N/K
Destination:Tindal NT
 
 
 
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