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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.

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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 type: Occurrence Investigation 
Location   (show map):Sydney Airport Occurrence type:Turbulence/windshear/microburst 
State: New South Wales  
Release date: 07 July 2015 Occurrence category: Incident 
Report status: Discontinued Highest injury level: None 
 
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
 
 
 
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Last update 17 October 2017