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On 19 July 2011, a Virgin Australia operated Boeing Company 737-81D aircraft, registered VH-YFE, departed Brisbane on a scheduled passenger service to Mackay, Queensland. The First Officer (FO) was designated as the pilot flying for the flight.

While conducting a high speed descent into Mackay, the aircraft became low on profile and descended below the 8,500 ft lower limit of the control area (CTA) step. The aircraft departed Class C and entered Class G airspace for 2.9 NM and 32 seconds, before re-entering Class C. A clearance to depart, or re-enter Class C airspace was not obtained from ATC.

The Captain realised that they were low on profile and advised the FO, who reduced the aircraft's rate of descent. The flight continued without further incident. No other aircraft were affected during the event.

The operator conducted an investigation and determined that the crew's situation awareness of the aircraft's descent profile and proximity to the CTA steps had reduced.

This incident highlights the effect reduced situation awareness can have on aircraft operations and the importance of using all available resources, including instruments and charts, to assist with monitoring the descent profile.

Download Final report
[ Download PDF: 4.43MB]
 
 
 
 
General details
Date: 19 July 2011 Investigation status: Completed 
Time: 1000 EST  
Location   (show map):67 km SSE Mackay Airport Investigation type: Occurrence Investigation 
State: Queensland Occurrence type: Operational non-compliance 
Release date: 14 March 2012 Occurrence class: Airspace 
Report status: Final Occurrence category: Incident 
 Highest injury level: None 
 
Aircraft details
Aircraft manufacturer: The Boeing Company 
Aircraft model: 737 
Aircraft registration: VH-YFE 
Serial number: 39414 
Operator: Virgin Australia 
Type of operation: Air Transport High Capacity 
Damage to aircraft: Nil 
Departure point:Brisbane, Qld
Destination:Mackay, Qld
 
 
 
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Last update 01 March 2016