At approximately 1944 Coordinated Universal Time on 23 July 2007, an Airbus Industrie A330- 202 aircraft, registered VH-EBE, was about 4 hours into its flight from Bangkok, Thailand to Melbourne, Australia, when the left (No-1) engine had an uncommanded shutdown.
The flight crew attempted unsuccessfully to restart the engine and subsequently diverted to Denpasar Airport, Indonesia. The operator's maintenance staff inspected the aircraft and performed a series of tests and examinations, which revealed that the engine electronic control unit (ECU) for the No-1 engine had malfunctioned.
The defective ECU was sent to the component manufacturer for a detailed inspection. That inspection found a short circuit in the input output module (IOM) circuit board that developed from a microscopic air void in the insulation compound of the circuit board layers.
As a result of this incident, the aircraft operator replaced the ECUs in a number of aircraft, and the board manufacturer amended its production standards and procedures.
|Date:||22 July 2007||Investigation status:||Completed|
|Time:||1943 UTC||Investigation level:||Complex - click for an explanation of investigation levels|
|Location:||Near Ketut (IFR)|
|State:||International||Occurrence type:||Engine failure or malfunction|
|Release date:||17 June 2009||Occurrence class:||Technical|
|Report status:||Final||Occurrence category:||Incident|
|Highest injury level:||None|
|Aircraft manufacturer||Airbus Industrie|
|Type of operation||Air Transport High Capacity|
|Damage to aircraft||Nil|
|Departure point||Bangkok, Thailand|