Aviation safety investigations & reports

Cessna Aircraft 402C VH-RMI, Darwin Airport, 6 February 1998

Investigation number:
Status: Completed
Investigation completed


After full flap was selected on late final approach, the pilot heard a loud thud, the aircraft pitched nose up and the flaps retracted rapidly. A go around was conducted while the pilot established that the aircraft operated normally, apart from the flaps. A flapless landing was carried out.

Examination of the flap system revealed a failure on the idler gear of the flap drive gearbox. The gearbox had been in service for 12,546 hours, since the aircraft was manufactured. The manufacturer had not specified any inspection schedules, the gearbox being required "on condition".

General details
Date: 06 February 1998   Investigation status: Completed  
Time: 1815 CST    
Location   (show map): Darwin Airport    
State: Northern Territory   Occurrence type: Flight control systems  
Release date: 29 October 2002   Occurrence category: Incident  
Report status: Final   Highest injury level: None  

Aircraft details

Aircraft details
Aircraft manufacturer Cessna Aircraft Company  
Aircraft model 402  
Aircraft registration VH-RMI  
Serial number 402C0408  
Type of operation Air Transport Low Capacity  
Damage to aircraft Nil  
Departure point Garden Point, NT  
Departure time -  
Destination Darwin, NT  
Crew details
Role Class of licence Hours on type Hours total
Pilot-in-Command Commercial
Last update 16 November 2015