Following is a timeline of key events in the investigation to date: An Air India Boeing 787 Dreamliner bound for London crashes shortly after takeoff from Ahmedabad city, killing all but one of the 242 people on board. India's Aircraft Accident Investigation Bureau launches an investigation into the world's deadliest crash in a decade.

The deadly Air India crash last month has renewed a decades-old debate in the aviation industry over installing video cameras monitoring airline pilot actions to complement the cockpit voice and flight data recorders already used by accident investigators.

A black-box recording and report details indicate that the flight’s captain switched off fuel flow to engines.