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.

The London-bound Boeing 787 struck a medical college hostel in a residential area of Ahmedabad minutes after takeoff Thursday, killing 241 people on board and at least 29 on the ground. One passenger survived.

India's aviation safety watchdog has asked Air India for the training records of the pilots and dispatcher for the plane that crashed last week as part of its investigation into the incident that killed at least 271 people,