Aviation safety investigations & reports

Wake turbulence event involving a Bombardier Dash 8, VH-QOY at Sydney Airport, NSW on 7 May 2015

Investigation number:
Status: Discontinued


Section 21 (2) of the Transport Safety Investigation Act 2003 (TSI Act) empowers the Australian Transport Safety Bureau (ATSB) to discontinue an investigation into a transport safety matter at any time. Section 21 (3) of the TSI Act requires the ATSB to publish a statement setting out the reasons for discontinuing an investigation.


On 14 May 2015, the ATSB commenced an investigation into a reported wake turbulence event involving a Bombardier Dash 8, VH-QOY and operated by QantasLink at Sydney Airport, New South Wales, on 7 May 2015.

During runway 34 parallel runway operations at Sydney Airport, the Dash 8 aircraft on approach reportedly encountered wake turbulence from a preceding A330 aircraft. The Dash 8 aircraft commenced  uncommanded pitch and roll movements prior to being stabilised by the crew. A review of the flight data indicated that the bank angle was less than initially reported by the crew. No alerts or warnings were triggered in the aircraft (the bank angle did not exceed 30 degrees). As per standard operating procedures the crew conducted a go-around.

The ATSB did not identify any organisational or systemic issues that contributed to the incident and assessed that no safety issues would be identified through further investigation. On that basis, the ATSB has decided to discontinue its investigation.

General details
Date: 07 May 2015   Investigation status: Discontinued  
Time: 07:30 EST   Investigation level: Short - click for an explanation of investigation levels  
Location   (show map): Sydney Airport    
State: New South Wales   Occurrence type: Turbulence/windshear/microburst  
Release date: 07 July 2015   Occurrence category: Incident  
Report status: Discontinued   Highest injury level: None  

Aircraft details

Aircraft details
Aircraft manufacturer Bombardier Inc  
Aircraft model DHC-8-402  
Aircraft registration VH-QOY  
Serial number 4288  
Operator Sunstate Airlines  
Type of operation Air Transport High Capacity  
Sector Turboprop  
Damage to aircraft Nil  
Departure point Coffs Harbour, NSW  
Destination Sydney, NSW  
Last update 14 November 2018