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After take off from runway 17, the aircraft commenced to roll and yaw to the right. The pilot maintained control, completed a left circuit and landed back on runway 17. Before take off, a flap setting of 20 degrees was selected and was indicating in the cockpit. Later inspection showed that at this flap selection, the right flap went to 20 degrees and the left to 40 degrees. Due to a maintenance error, when the left flap actuator was changed the hoses were re-attached to the wrong ports.

Download Final Report
[ Download PDF: 22KB]
General details
Date: 17 March 1989 Investigation status: Completed 
Time: 1837  
Location:Essendon Investigation type: Occurrence Investigation 
State: Victoria Occurrence type: Miscellaneous - Other 
Release date: 07 August 1989 Occurrence class: Operational 
Report status: Final Occurrence category: Incident 
 Highest injury level: None 
Aircraft details
Aircraft manufacturer: de Havilland Aircraft Pty Ltd 
Aircraft model: DH-104 
Aircraft registration: VH-NBM 
Serial number: 14416 
Type of operation: Charter 
Damage to aircraft: Nil 
Departure point:Essendon VIC
Departure time:N/A
Destination:Phillip Island VIC
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