AirAsia X flight forced to land after 'shaking like washing machine'

A Kuala Lumpur-bound AirAsia X flight had to double back to its Australian origin Sunday after an apparent engine malfunction passengers called "terrifying" but airline officials later branded a "technical issue".

The plane landed back in Perth around 10:00am, with emergency services on site as a precaution.

"The pilot identified technical issues, turned around and returned", an airport spokesman told AFP, adding that emergency crews were put on standby but not needed.

Passengers on board AirAsia X flight D7237 were understandably terrified after there was first a loud bang followed by the whole plane shaking. "We could see the engine out the window which was really shaken on the wing".

The budget airline was already been under increased scrutiny from the air safety watchdogs over previous incidents and is facing another investigation after a turbine blade in the plane's left engine allegedly sheared off less than two hours into a flight.

There's standard turbulence, and then there's what AirAsia passengers experienced during a flight on Sunday morning.

Some passengers posted videos on social media.

"Of course we were a bit anxious but at the end of the day ... we safely landed".

No one was injured during the incident, though it seemed some passengers were struggling after getting off the plane. Once the plane landed safely, the passengers applauded the pilot, who shook hands with each of them, Stevens told CNN.

"Our survival depends on you co-operating, and hopefully everything will turn out for the best", the pilot nervously told them.

"Passengers were attended to by our ground staff upon landing and were provided with all necessary assistance", AirAsia said in a statement.