The were fined RM160,000 each, which was paid in October and November.
The remains of two birds were found on the runway, the airline says in a statement.
Minister says details of the investigation will reveal more from the cockpit recorder on what actually transpired.
Meanwhile, Air Asia boss says he is proud of how his crew handled Flight D7237 which faced engine issues.
This will make AirAsia X the first low-cost carrier from Asia to fly to the US.
Meanwhile, sister company AirAsia Bhd says it never had dealings with Rolls-Royce.
However, AirAsia Group says its dealing with Rolls-Royce were according to procedure.
'We will provide further updates as to when the situation can be resolved,' it says.
The rupture prevented aircraft from refuelling at all P bay gates at KLIA2, it says.
The aircraft came within 152 metres of a Jetstar flight that was about to land.