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The ATSB was advised of two aircraft proximity events at Ballarat Airport, Victoria on 4 August 2012, which occurred within a short period of time. Both incidents were witnessed by an observer on the ground.

The first incident involved VH-VSD and VH-VTA, who were observed passing in close proximity overhead the airport, on reciprocal headings.

About 20 minutes later, a second incident occurred overhead, when VH-PKH was observed to pass below VH-VTJ. Airservices Australia surveillance data indicated that the distance between the aircraft reduced to 0.1 NM laterally and 100 ft vertically.

These incidents highlight the importance of pilots effectively broadcasting and actively listen to the radio, and maintaining a vigilant lookout at all times, to enhance traffic and situation awareness. This is particularly important when operating in a high traffic density environment.

Aviation Short Investigation Bulletin – Issue 14

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General details
Date: 04 August 2012 Investigation status: Completed 
Time: 1220 EST Investigation type: Occurrence Investigation 
Location   (show map):Ballarat Airport Occurrence type:Near collision 
State: Victoria Occurrence class: Airspace 
Release date: 20 December 2012 Occurrence category: Serious Incident 
Report status: Final Highest injury level: None 
 
Aircraft 1 details
Aircraft manufacturer: Cessna Aircraft Company 
Aircraft model: 172 
Aircraft registration: VH-VTA 
Serial number: 172S10725 
Type of operation: Flying Training 
Damage to aircraft: Nil 
Destination:Ballarat, Vic
Aircraft 2 details
Aircraft manufacturer: Cessna Aircraft Company 
Aircraft model: 172 
Aircraft registration: VH-VSD 
Serial number: 172S10919 
Type of operation: Flying Training 
Damage to aircraft: Nil 
Departure point:Ballarat, Vic
Destination:Ballarat, Vic
Aircraft 3 details
Aircraft manufacturer: Cessna Aircraft Company 
Aircraft model: 172RG 
Aircraft registration: VH-PKH 
Serial number: 172RG0355 
Type of operation: Private 
Damage to aircraft: Nil 
Departure point:Ballarat, Vic
Destination:Ballarat, Vic
Aircraft 4 details
Aircraft manufacturer: Cessna Aircraft Company 
Aircraft model: 172S 
Aircraft registration: VH-VTJ 
Serial number: 172S10746 
Type of operation: Flying Training 
Damage to aircraft: Nil 
Departure point:Ballarat, Vic
Destination:Ballarat, Vic
 
 
 
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Last update 25 March 2014