Aviation safety investigations & reports

Beech Aircraft Corp 200C, VH-NTH

Investigation number:
Status: Completed
Investigation completed


On 23 March 2004, shortly after take-off from Katherine, NT, the left main landing gear of the Beech 200 aircraft, registered VH-NTH, did not retract. The flight continued to Darwin with the landing gear extended. During approach to Darwin airport the pilot advised air traffic control that he could not obtain a green `down and locked' indication for the left main landing gear, and declared an emergency prior to landing. During touchdown, the left main landing gear collapsed and the aircraft slewed off the runway. Both occupants evacuated the aircraft with no injuries.

The aircraft operator's maintenance organisation examined the aircraft and found that the left main landing gear drive shaft had severed as a result of fretting against a bleed air duct clamp tail. The bleed air duct clamp (jubilee clamp) had been fitted to the aircraft during an aircraft refurbishment program in September 2003. The jubilee clamp tail had been fastened in close proximity to the landing gear drive shaft. Subsequently, the jubilee clamp tail had come into close contact with the drive shaft, leading to severe wear of the drive shaft section and eventual failure.

As a result of the issues identified with this occurrence, the aircraft operator has conducted a fleet-wide examination of all similar aircraft to ensure adequate clearance exists between bleed air clamps and landing gear drive shafts.

The operator has submitted a major defect report to the Australian Civil Aviation Safety Authority and intends to notify the manufacturer of a number of deficiencies noted in the aircraft maintenance manual.

General details
Date: 23 March 2004   Investigation status: Completed  
Time: 1250 hours CST    
Location   (show map): Darwin, Aero.    
State: Northern Territory   Occurrence type: Runway excursion  
Release date: 21 April 2004   Occurrence category: Accident  
Report status: Final   Highest injury level: None  

Aircraft details

Aircraft details
Aircraft manufacturer Beech Aircraft Corp  
Aircraft model 200  
Aircraft registration VH-NTH  
Serial number BL-012  
Type of operation Aerial Work  
Damage to aircraft Substantial  
Departure point Katherine, NT  
Departure time 1130 hours CST  
Destination Darwin, NT  
Last update 13 May 2014