Aviation safety investigations & reports

Turbulence - Boeing 777-3ZGER, VH-VPH, Jakarta 315 km N, 31 January 2011

Investigation number:
Status: Completed
Investigation completed


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On 31 January 2011, a Boeing Company Aircraft 777-3ZGER, registered VH-VPH, was en-route from Phuket, Thailand to Melbourne, Victoria. When the aircraft was 170 NM north of Jakarta, Indonesia it encountered a period of sudden and unexpected turbulence. Six cabin crew members and four passengers received minor injuries.

At the time of the incident, the aircraft was established in the cruise and flying in cloud. The weather radar showed no significant weather in the immediate vicinity of the aircraft.

The flight continued to Melbourne where two cabin crew members consulted with paramedics, however no medical treatment was required.

The operator is considering including details of this occurrence in flight crew and cabin crew training to improve general crew awareness on the practical aspects of turbulence management and the importance of cabin discipline particularly relating to the handling of cabin equipment.

The operator is also considering changing a number of internal procedures to improve or standardise processes related to reporting injuries, providing support to crew in remote ports and assessing when crew are fit to return to duty.

Download Final Report
[Download  PDF: 2.6MB]
Alternate: [Download  DOC: 5.49MB]
General details
Date: 31 January 2011   Investigation status: Completed  
Time: 2130 UTC   Investigation level: Short - click for an explanation of investigation levels  
Location   (show map): Jakarta, N M 315 km    
State: International   Occurrence type: Turbulence/windshear/microburst  
Release date: 16 May 2011   Occurrence category: Incident  
Report status: Final   Highest injury level: Minor  

Aircraft details

Aircraft details
Aircraft manufacturer The Boeing Company  
Aircraft model 777  
Aircraft registration VH-VPH  
Serial number 37943  
Type of operation Air Transport High Capacity  
Damage to aircraft Nil  
Departure point Phuket, Thailand  
Destination Melbourne, Vic.  
Last update 14 November 2018