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When the pilot selected the landing gear down for landing it failed to extend, and the circuit breaker (CB) popped. He reset it, but each time the gear was selected down it popped again. He decided to return to Broken Hill because of the emergency services availability. On arrival he attempted to extend the gear manually, but he could not turn the handle. He was now committed to a wheels up landing. An inspection revealed that the "up" limit microswitch attachment bracket had broken, preventing the lever arm making contact with the microswitch. This allowed the gearbox motor to continue running when the landing gear was selected up after take-off. The motor then ran the gearbox pinion and segment gears to the end of their travel, forcing and jamming their teeth together. When the gear was selected down the motor was unable to move the pinion gear and stalled, causing the CB to pop. The jammed pinion and segment gears also prevented the manual extension handle being turned.
Download Final Report
[ Download PDF: 11KB]
 
 
 
 
General details
Date: 04 December 1995 Investigation status: Completed 
Time: 10:45 CSuT Investigation type: Occurrence Investigation 
 Occurrence type:Wheels up landing 
 Occurrence class: Operational 
Release date: 24 September 1996 Occurrence category: Accident 
Report status: Final  
 
Aircraft details
Aircraft manufacturer: Beech Aircraft Corp 
Aircraft model: E55 
Aircraft registration: VH-EZF 
Sector: Piston 
Damage to aircraft: Substantial 
Departure point:Broken Hill NSW
Destination:Tilpa NSW
 
 
 
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Last update 21 October 2014