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The pilot reported that, shortly after take-off and after selecting the landing gear up, the landing gear lights and the panel lighting dimmed and then extinguished. On checking the alternator output he found that there was no electrical power and began emergency procedures. Unable to restore electrical power, the pilot attempted to lower the landing gear using the emergency system. However, the emergency system jammed before the landing gear could be fully lowered. He subsequently landed the aircraft with the landing gear retracted. Examination of the aircraft found that the landing gear had been fully retracted on landing. Both the normal and emergency gear systems functioned correctly when tested. The electrical system failure was caused by inadequate output from the alternators, and battery discharge. The right alternator drive belt tension bracket had broken and the drive belt had fallen off. The left alternator was able to produce only 5 A due to a shorted diode. Battery discharge soon after take-off suggests that these faults may have occurred during the previous flight. An electrical charging fault had been reported on 30 December 1993. The maintenance organisation responsible for the aircraft had cleared the fault on 31 December 1993 with an entry indicating that both alternator drive belts had been tensioned and the operation of the alternators had been checked. Unrestrained freight in the cabin of the aircraft was packed to the level of the cabin windows and was abutting the rear of the front seats. This would have limited the pilot's access to the emergency gear operating handle.
Download Final Report
[ Download PDF: 14KB]
General details
Date: 05 January 1994 Investigation status: Completed 
Time: 10:23 EST  
 Investigation type: Occurrence Investigation 
 Occurrence type: Wheels up landing 
Release date: 29 April 1996 Occurrence class: Operational 
Report status: Final Occurrence category: Accident 
Aircraft details
Aircraft manufacturer: Beech Aircraft Corp 
Aircraft model: 95-B55 
Aircraft registration: VH-CCB 
Sector: Piston 
Damage to aircraft: Substantial 
Departure point:Archerfield QLD
Destination:Coolangatta QLD
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Last update 21 October 2014