"But when I opened my eyes, I realised I was alive and I tried to unbuckle myself from the seat and escape from where I could. It was in front of my eyes that the air hostess and others (died)".

There have been cases of a very small number of survivors in very serious accidents, but it is "very rare" for there to be only one, a professor told Newsweek.

Back in 2012, a film crew carried out a controversial experiment, crashing a Boeing 727-200 on purpose to find out if passengers in certain seats had greater chances of surviving