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Section 21 (2) of the Transport Safety Investigation Act 2003 (TSI Act) empowers the Australian Transport Safety Bureau (ATSB) to discontinue an investigation into a transport safety matter 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.

On 12 October 2011, the ATSB commenced an investigation into the breakdown of separation, between an Airbus Industrie A320 aircraft registered VH-VGR and a Boeing Company 737 aircraft registered VH-VOD near Melbourne Airport, Vic. Examination of the information collected during the investigation identified that the occurrence had significant similarities to aspects of ongoing investigation AO-2010-104, breakdown of separation, between a Boeing Company 767 aircraft registered VH-OGU and a Boeing Company 737 aircraft registered VH-VBH, near Melbourne Airport, Vic on 5 December 2010.

Accordingly, the ATSB decided to examine the 12 October 2011, breakdown of separation event as part of the broader investigation AO-2010-104 and the separate AO-2011-131 investigation was discontinued.

 
General details
Date: 12 October 2011 Investigation status: Discontinued 
Time: 10:50 ESuT Investigation type: Occurrence Investigation 
Location   (show map):15Km west, Melbourne Airport  Occurrence type:Loss of separation 
State: Victoria Occurrence class: Airspace 
 Occurrence category: Incident 
Report status: Discontinued Highest injury level: None 
 
Aircraft 1 details
Aircraft manufacturer: Airbus Industrie 
Aircraft model: A320 
Aircraft registration: VH-VGR 
Serial number: 4257 
Operator: Jetstar 
Type of operation: Air Transport High Capacity 
Damage to aircraft: Nil 
Departure point:Melbourne, Vic.
Destination:Auckland, NZ
Aircraft 2 details
Aircraft manufacturer: The Boeing Company 
Aircraft model: 737 
Aircraft registration: VH-VOD 
Serial number: 30624 
Operator: Virgin 
Type of operation: Air Transport High Capacity 
Damage to aircraft: Nil 
Departure point:Melbourne, Vic.
Destination:Gold Coast, Qld
 
 
 
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Last update 15 November 2016