Brazilian search planes spotted debris in the Atlantic Ocean Tuesday that could be the wreckage of Air France flight 447 carrying 228 people that disappeared in a storm Sunday night.

All flights over the ocean cross certain checkpoints, and the most critical one for flight 447 was Tasil point.

Then they crowded around the computer monitor as the first images of Flight 447 came onscreen: engines, landing gear and sections of fuselage, all unmistakably vivid on the ocean floor.