odds. the plane reached an altitude of 38,000 feet. wheel wells are not pressurized and temperatures outside of the plane were as low as 75 to 85 degrees below zero. as unbelievable as all of this sounds, authorities says surveillance video shows the teen climbing over a fence at the san jose airport and approaching the jet. now before we get to how someone could possibly survive such an ordeal we'll tackle another question how hard is to it get inside a wheel well. >> reporter: anderson, this is southern california aviation airport in victorville, california in the desert where airlines all over the world bring their planes they are not using any more. we'll demonstrate how someone would get in a wheel well of an aircraft. this is a boeing 767 that used to be used. this is the door that's closed. there's a way to get in. here's how the process starts.