Aviation safety investigations & reports

Boeing 737-8FE, VH-VON, Darwin Aerodrome NT, 9 November 2009

Investigation number:
Status: Discontinued


Section 21 (2) of the Transport Safety Investigation Act 2003 (TSI Act) empowers the ATSB to discontinue an investigation at any time. Section 21 (3) of the TSI Act requires the ATSB to publish a statement setting out the reasons for discontinuing an investigation.

The ATSB had commenced an investigation into the triggering of GPWS alerts in a Boeing Company 737 during its approach to land at Darwin Airport, NT on 9 November 2009. Information obtained from the aircraft operator and the aircraft manufacturer indicated that the alerts signalled a minor problem with flap settings that the crew rectified without difficulty. The ATSB has assessed that the occurrence was unlikely to have any significant implications for transport safety and has elected to discontinue the investigation.

The data collected in the course of the investigation may be used by the ATSB for future statistical analysis and safety research purposes.


General details
Date: 09 November 2009   Investigation status: Discontinued  
Time: 0100 CST   Investigation level: Systemic - click for an explanation of investigation levels  
Location   (show map): Darwin Aerodrome    
State: Northern Territory   Occurrence type: E/GPWS warning  
Release date: 12 February 2010   Occurrence category: Incident  
Report status: Discontinued   Highest injury level: None  

Aircraft details

Aircraft details
Aircraft manufacturer The Boeing Company  
Aircraft model 737  
Aircraft registration VH-VON  
Serial number 33795  
Type of operation Air Transport High Capacity  
Damage to aircraft Nil  
Departure point Brisbane, Qld  
Destination Darwin, NT  
Crew details
Role Class of licence Hours on type Hours total
Pilot-in-Command ATPL - -
Last update 03 April 2020