Aviation safety investigations & reports

Two aircraft proximity events at Ballarat Airport, Victoria, 4 August 2012

Investigation number:
AO-2012-102
Status: Completed
Investigation completed

Summary

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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

Download Final Report
[Download  PDF: 226KB]
 
 
Alternate: [Download  DOC: 686KB]
 
General details
Date: 04 August 2012   Investigation status: Completed  
Time: 1220 EST    
Location   (show map): Ballarat Airport   Investigation type: Occurrence Investigation  
State: Victoria   Occurrence type: Near collision  
Release date: 20 December 2012   Occurrence class: Airspace  
Report status: Final   Occurrence category: Serious Incident  
  Highest injury level: None  

Aircraft 1 details

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 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 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 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  
Last update 14 November 2018