crowd to greet well-wishers face to face proving quite a challenge for his security detail. more than three years ago an air france flight dropped out of the sky over the atlantic ocean. everyone on board was killed. now there is knew information about the captain. it turns out he may have been sleep deprived. >> reporter: the plane was designed to be incapable of stalling. basically pilot proof. but air france flight 447 traveling from rio de janeiro to paris ended in the atlantic ocean in 2009, killing all 288 onboard. only two years later would the flight recorder be found showing the plane crashed from equipment problem that disengaged the autopilot in a storm. leaving a young, insufficiently trained crew unable to manually fly the plane. and a french newsmagazine, le point reporting shortly after takeoff the pilot said in the