As we all know, the Wright brothers were credited as inventors of first working airplane. Who would have known that in September 17, 1908 , Orville Wright would crash his invention and kill one passenger Lt. Thomas Selfridge. This is the first documented fatality in a plane crash. The cause of the crash was later found to be propeller separation. Miraculously, Orville Wright, was luckier than Selfridge and survived the crash. He suffered few injuries like broken ribs and legs.