CNN Erin Burnett OutFront November 4, 2015 00:15:00
Was a fire ball. >> reporter: but it didn't smain why. it was simply a clue. unexplained split second sounds. the similarities lead them to believe a fuel tank might have exploded. three miles away was the tail section. that holds another clue. possible structural failure. in november 2001, the airbus tail hit the tarmac on landing. the plane was repaired. a clear break from the rest of the debris raises this possibility. >> it could have been a structural failure of the plane that rp tured so the explosion could have been coming after whatever event initiated the break-up. >> reporter: flight...