Five Unsolved Aviation Disappearances

Pilots have vanished into thin air leaving only chilling recordings behind. Here are five aviation

mysteries that still defy explanation. Number five is the Stardust flight. The operator tapped

out the code STENDEC twice before vanishing into the Andes. The meaning remains unsolved.

Number four is the Angola heist. Two unqualified guys stole a massive Boeing 727 and simply

flew away, never to be found again. Number three is the Ghost Plane.

Fighter jets watched the Helios crew passed out while the plane flew itself until it crashed.

Number two is Flight 19. Five Navy bombers and their rescue plane disappeared

in the Bermuda Triangle without a trace. And number one is Frederick Valentich. He radioed that