Aviation safety investigations & reports

Avionics event - Airbus A330-202, VH-EBF, overhead Kuala Lumpur International Airport Malaysia, 1 November 2010

Investigation number:
Status: Completed
Investigation completed


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On 1 November 2010, an Airbus A330-302, registered VH-EBF (EBF), departed Phuket, Thailand on a scheduled passenger flight to Sydney, New South Wales.

When the aircraft was approaching overhead Kuala Lumpur International Airport, Malaysia, in icing conditions, the aircraft systems indicated a loss of total air temperature (TAT) data. This resulted in the loss of autopilot and autothrottle capabilities. The crew attempted to resolve the fault, but were unable to restore the auto-flight capabilities.

The crew conferred with company operational and maintenance personnel and elected to divert to Singapore. The aircraft landed in Singapore without further incident.

Analysis of the data from the flight data recorder indicated that both TAT probes failed during the incident flight, triggering the loss of autoflight capabilities. The manufacturer suspected that the TAT probes failed due to icing.

A new TAT probe was certified for the A330 aircraft and issued through an optional Service Bulletin in 2008. As of November 2010, there had been no reported events of multiple failures involving the new TAT probes. At the time of the incident, EBF was not fitted with one of the new TAT probes.

Download Final Report
[Download  PDF: 2.6MB]
Alternate: [Download  DOC: 5.49MB]
General details
Date: 01 November 2010   Investigation status: Completed  
Time: 1745 UTC   Investigation level: Short - click for an explanation of investigation levels  
Location   (show map): overhead Kuala Lumpur International Airport Malaysia    
State: International   Occurrence type: Avionics/flight instruments  
Release date: 16 May 2011   Occurrence category: Incident  
Report status: Final   Highest injury level: None  

Aircraft details

Aircraft details
Aircraft manufacturer Airbus Industrie  
Aircraft model A330  
Aircraft registration VH-EBF  
Serial number 853  
Type of operation Air Transport High Capacity  
Damage to aircraft Nil  
Departure point Phuket, Thailand  
Destination Sydney, NSW  
Last update 14 November 2018