When the pilot of the plane you're on tells you to pray, you know you're in some serious trouble. 

That's exactly what passengers on an AirAsia X Airbus were told while flying over the Indian Ocean. According to NBC25, it was a missing blade which caused the plane to shake for two hours.

I can't imagine the thoughts that would go through my head while this thing was shaking. Two hours is a long time to sit there wondering if you're going to crash into the ocean and if you're going to die. Clean underwear would by my first request while exiting the plane that's for sure.

Source: NBC25