Aviation safety investigations & reports

Airprox - Piper PA-34, VH-PWQ and Cessna 182, VH-JYG, near Avalon Airport, Victoria, 22 May 2012

Investigation number:
Status: Completed
Investigation completed


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On 22 May 2012 at 1608 Eastern Standard Time, a Piper PA-34-220T, registered VH-PWQ (PWQ), conducting training under Instrument Flight Rules (IFR) and a Cessna R182, registered VH-JYG (JYG), on a pipeline survey under Visual Flight Rules (VFR) passed within 0.1 NM and 100 ft of each other in Class D airspace at Avalon aerodrome, Victoria.

The air traffic controller had provided traffic information to both aircraft, but the pilot of PWQ stated that the information was not sufficient for him to understand the intended track of JYG.

Traffic information provided by air traffic controllers must be concise, however it needs to include enough relevant reference information to enable the pilot to determine if any avoidance action is required. A recent amendment to documents used by air traffic controllers provided more detail on the provision of safety alerts in all classes of airspace and on when to issue avoiding action within surveillance coverage.

In Class D, where separation is not provided between IFR and VFR aircraft, pilots need to be aware of the limitations of the see-and-avoid principle. Pilots should also be aware of their responsibilities in Class D and conscious of the dangers of expectation.

Aviation Short Investigation Bulletin - Issue 13


Download Final Report
[Download  PDF: 197KB]
Alternate: [Download  DOCX: 517KB]
General details
Date: 22 May 2012   Investigation status: Completed  
Time: 1607 EST   Investigation level: Short - click for an explanation of investigation levels  
Location   (show map): near Avalon Airport    
State: Victoria   Occurrence type: Near collision  
Release date: 27 November 2012   Occurrence category: Serious Incident  
Report status: Final   Highest injury level: None  

Aircraft 1 details

Aircraft 1 details
Aircraft manufacturer Piper Aircraft Corp  
Aircraft model PA-34  
Aircraft registration VH-PWQ  
Serial number 3447028  
Type of operation Flying Training  
Damage to aircraft Nil  

Aircraft 2 details

Aircraft 2 details
Aircraft manufacturer Cessna Aircraft Company  
Aircraft model 182  
Aircraft registration VH-JYG  
Serial number R18200085  
Type of operation Aerial Work  
Damage to aircraft Nil  
Last update 14 November 2018