Aviation safety investigations & reports

Near collision involving Cessna 177RG, VH-OOJ, and Cessna 172, VH-VSO, near Ballarat, Victoria, on 15 April 2016

Investigation number:
AO-2016-041
Status: Completed
Investigation completed

Final Report

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On 15 April 2016, the pilot of a Cessna 172 aircraft, registered VH-VSO (VSO), was conducting a solo navigation training flight from Ballarat to Warrnambool, Portland, Hamilton and return to Ballarat, Victoria.

On the same day, two pilots, both instructors, were conducting a local training flight in a Cessna 177RG aircraft, registered VH-OOJ (OOJ), from Ballarat Airport. At about 1648 Eastern Standard Time, while tracking south-east about 12 NM from Ballarat Airport, at about 3,800 ft, the pilot in command, who was the pilot-not-flying and in the left seat, sighted VSO out of the right window about 100 to 200 ft below. The pilot in command then took control of the aircraft from the other pilot and commenced a steep climb. VSO then passed beneath OOJ. Shortly after, the pilots of OOJ heard the pilot of VSO broadcast on the common traffic advisory frequency, 10 NM west of Ballarat and inbound to the airport.

The pilot of VSO reported that they could not recall their altitude when about 12 NM west of Ballarat, but would normally be between 3,500 and 4,500 ft on descent. The pilot reported scanning the sky to look out for other aircraft, and maintaining a listening watch on the area and Ballarat common traffic advisory frequencies. The pilot did not hear any broadcasts from the pilots of OOJ and did not observe any aircraft in close proximity during the flight.

This incident highlights the importance of using both un-alerted and alerted see-and-avoid principles and maintaining a vigilant lookout at all times.

 

Aviation Short Investigations Bulletin - Issue 51

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[Download  PDF: 146KB]
 
 
Alternate: [Download  DOCX: 159KB]
 

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General details
Date: 15 April 2016   Investigation status: Completed  
Time: 16:48 EST    
Location   (show map): Ballarat Airport, west 20 km   Investigation type: Occurrence Investigation  
State: Victoria   Occurrence type: Near collision  
Release date: 08 September 2016   Occurrence class: Operational  
Report status: Final   Occurrence category: Serious Incident  
  Highest injury level: None  

Aircraft 1 details

Aircraft 1 details
Aircraft manufacturer Cessna Aircraft Company  
Aircraft model 172S  
Aircraft registration VH-VSO  
Serial number 172S10923  
Type of operation General Aviation-Unknown  
Sector Piston  
Damage to aircraft Nil  
Departure point Unknown  

Aircraft 2 details

Aircraft 2 details
Aircraft manufacturer Cessna Aircraft Company  
Aircraft model 177RG  
Aircraft registration VH-OOJ  
Serial number 177RG0857  
Type of operation Flying Training  
Sector Piston  
Damage to aircraft Nil  
Last update 14 November 2018