 FACT: SPOILER: Although the aircraft hits the water at a high rate  of speed and the windshield apparently shatters, there is no damage  shown to the forward portion of the aircraft in the subsequent scene  as the aircraft is sinking. With the volume of water that rushes  into the cabin, the aircraft would certainly have to have  substantial damage to it, and in reality would be crushed in the  front as it is only made from aluminum.