Mayday

Sight Unseen (1996 Charki Dadri mid-air collision)

Aired Dec 2, 2009 · 1:00 PM ET · 45 min

Alternate title: Head on Collision/Crash Course/Collision Course Find out what went wrong when a Kazakhstan Airlines jet and a Saudi Airways plane collided in the worst mid-air crash in aviation history, killing 349 people on November 12, 1996.