Jump to Content
Download Final Report
[ Download PDF: 152KB]
 
 
 
Following the commencement of aircraft vibration in flight at 4,000 feet, the pilot advised Alice Springs that he was returning and expected a normal approach and landing. He attempted to isolate the source of the vibration by checking the magnetoes and by applying carburettor heat, and then he proceeded to cut each engine in turn by moving the appropriate mixture control to the idle cut off position. After cutting the port engine the pilot trimmed out the rudder foot load, but did not increase power on the starboard engine. Some minutes later, realising that he had lost considerable height and was now down to some 500 feet above ground level, he attempted to restore power on the port engine and believes he reselected the mixture control to "rich". He then moved both throttle and pitch levers to climb power settings, but although the pilot still had considerable right rudder trim applied he felt no asymmetric foot load. The aircraft gained 100 feet and then flew level at 90 knots, with the vibration continuing. The pilot lowered the nose and as the aircraft began to lose height again he decided that he must land straight ahead. He transmitted a "Mayday" call and with the wheels and flaps retracted he landed amongst scattered, small trees, damaging the aircraft beyond economical repair. It is possible that the vibration was due to the turbulent airflow induced by the protruding section of the wing walkway. The extra drag arising from this source, however, would not have been sufficient to account for the loss of performance.
Download Final Report
[ Download PDF: 152KB]
 
 
 
 
General details
Date: 24 April 1970 Investigation status: Completed 
Time: 0952 CST Investigation type: Occurrence Investigation 
Location:Renner's Rock Occurrence type:Wheels up landing 
State: Northern Territory Occurrence class: Operational 
Release date: 27 July 1971 Occurrence category: Accident 
Report status: Final Highest injury level: Minor 
 
Aircraft details
Aircraft manufacturer: Beech Aircraft Corp 
Aircraft model: 50 
Aircraft registration: VH-CLQ 
Type of operation: Air Transport High Capacity 
Damage to aircraft: Destroyed 
Departure point:Alice Springs
Departure time:0856
Destination:Mulga Park
 
 
 
Share this page Provide feedback on this investigation
Last update 16 May 2014