u/Boxerdogsandtulips

Not sure if this is the right sub but as a skittish flyer, I am just curious as to what happened. My son was on this flight and he said “midway” which, not sure really when that was, the plane banked immediately hard and to the left. He said “the whole right side was basically sticking straight up in the air.” He said people shouted. So, obviously it was unnerving. Does anyone know what would cause this to have happened? He said pilots did not say anything - Thank you!