Transcript for Video shows extreme turbulence on AirAsia flight

See those digits. Already. The latest into an AirAsia flight shaking for a full two hours and the pilot asked passengers to pray and made an urgent plea. David Wright with the latest. Reporter: Something you don't want to hear from a pilot. Pray but this happened about 90 minutes into the flight, frightening times for passengers as their airbus jet started shaking. You can see the tray tables and seats all shaking. Passengers as well. This happened as they're heading back now. It took them more than an hour and a half to get back. One described it as being in a washing machine. The pilots of the AirAsia jet from Perth, Australia, to Kuala Lumpur pleaded with passengers to pay attention and to pray. Please,isten to everything. Our survival depends on your cooperating. Hopefully everything will turn out for the best. Reporter: Upon landing the pilot reportedly told passengers that he thought a fan blade broke in one of the engines. You can see the engine shaking in the video shot by one of the passengers. AirAsia is just calling this an engine incident saying in a statement that it is investigating with its engine supplier, George, which is rolls-royce. They don't know for sure whether it was the air blade that broke. Reporter: They don't know exactly but I got to tell you, George, that analogy of a washing machine on balance is a pretty good idea because if a fan blade breaks the engine starts moving even though it's shut down the air start going through and would shake like it did all the way back to Perth. Thanks very much. Every time you see that. Speaking of video turning to

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