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On 17 January 2013, the flight instructor and student pilot of an Alpha Aviation R2160 aircraft, registered VH-NZT (NZT), had completed a training flight in the local training area to the west of Bankstown, New South Wales. They were returning to Bankstown via the ‘Prospect Reservoir’ (Prospect) visual flight rules (VFR) approach point, maintaining 1,500 ft.

At the same time, the instructor and student of a Diamond DA 40 aircraft, registered VH-UNH (UNH), were also returning to Bankstown via Prospect after conducting flying training in the local training area. They had been operating between 2,500 and 3,500 ft and elected to conduct a shallow descent to arrive at Prospect maintaining 1,500 ft.

When about 3.5 NM from Prospect, UNH passed overhead NZT with about 500 ft vertical separation. Shortly after, vertical separation reduced to 200 ft, with 0.2 NM lateral separation.

This incident highlights the importance of maintaining traffic clearance ahead and below, and for pilots to be mindful of aircraft blind spots.


Aviation Short Investigation Bulletin – Issue 17

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[ Download PDF: 157KB]
General details
Date: 17 January 2013 Investigation status: Completed 
Time: 1550 ESuT  
Location   (show map):13 km NW Bankstown Airport Investigation type: Occurrence Investigation 
State: New South Wales Occurrence type: Near collision 
Release date: 23 April 2013 Occurrence class: Airspace 
Report status: Final Occurrence category: Serious Incident 
 Highest injury level: None 
Aircraft 1 details
Aircraft manufacturer: Alpha Aviation Design Ltd 
Aircraft model: R-2160 
Aircraft registration: VH-NZT 
Serial number: 372 
Type of operation: Flying Training 
Damage to aircraft: Nil 
Departure point:Bankstown, NSW
Destination:Bankstown, NSW
Aircraft 2 details
Aircraft manufacturer: Diamond Aircraft Industries 
Aircraft model: DA40 
Aircraft registration: VH-UNH 
Serial number: 40.1071 
Type of operation: Flying Training 
Damage to aircraft: Nil 
Destination:Bankstown, NSW
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Last update 17 July 2014