Australia's air safety authority says engines on some A380 superjumbos have a potential manufacturing defect that could cause engine failure.
The Australian Transport Safety Bureau said in a statement a potential fault in an oil tube connection could lead to "fatigue cracking, oil leakage and potential engine failure from an oil fire."
An oil leak and fire are being blamed for the disintegration during the flight of a Rolls-Royce Trent 900 engine on a Qantas A380 shortly after takeoff from Singapore on November 4.
