ttcse - The altitude that this a/c fell from is not from cruise - if it's final stall was there she would have i feel broken apart on decent. This stall i really feel was at low altitude as if they were still flying and maybe looking to ditch. There is no evidence that they were not trying to ditch and this impact type certainly points to a possiblity. Large waves with whitecaps can look like small waves with white caps so you can't tell your altitude - if you guessed the wrong wave height you'll guess the wrong altitude. If you had no engines you would be very cautious.