Aviation safety investigations & reports

Windshear event - Boeing 737-7BX, VH-VBR, Melbourne Aerodrome Vic., 24 August 2010

Investigation number:
AO-2010-064
Status: Completed
Investigation completed

Summary

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On 24 August 2010, a Boeing Aircraft Company 737-700 aircraft, registered VH-VBR, was being operated on a passenger flight between Sydney, New South Wales and Melbourne, Victoria.

During the descent into Melbourne, at about 900 ft, the aircraft encountered windshear, resulting in the airspeed increasing rapidly. The pilot in command (PIC) immediately initiated a missed approach in accordance with the operator's windshear escape manoeuvre. During the manoeuvre, the PIC observed a 'PULL UP' alert momentarily activate on the primary flight display (PFD).

As the crew was visual and a positive rate of climb established, the copilot believed that the windshear escape manoeuvre had been completed and the normal go-around procedure had been commenced. Consequently, the copilot selected 15 degrees of flap, the setting used when conducting a go-around, and queried whether the aircraft's landing gear should be retracted.

The aircraft was climbed to 5,000 ft and an approach and landing on runway 27 was conducted, without further incident. After landing, the PIC reported the windshear occurrence and possible flap overspeed to the maintenance engineers. An inspection of the leading and trailing edge flaps was carried out with nil defects found.

The Flight Safety Foundation states that flight crew awareness and alertness are key factors in the successful application of windshear avoidance and recovery techniques.

Download Final Report
[Download  PDF: 3.37MB]
 
 
Alternate: [Download  DOC: 2.86MB]
 
General details
Date: 24 August 2010   Investigation status: Completed  
Time: 2000 EST    
Location   (show map): Melbourne Aerodrome   Investigation type: Occurrence Investigation  
State: Victoria   Occurrence type: Incorrect configuration  
Release date: 28 January 2011   Occurrence class: Operational  
Report status: Final   Occurrence category: Incident  
  Highest injury level: None  

Aircraft details

Aircraft details
Aircraft manufacturer The Boeing Company  
Aircraft model 737  
Aircraft registration VH-VBR  
Serial number 30745  
Type of operation Air Transport High Capacity  
Damage to aircraft Nil  
Departure point Sydney, NSW  
Destination Melbourne, Vic.  
Last update 14 November 2018