Investigators are probing the wreckage and cockpit recorders to understand what went wrong just after takeoff. The Air India flight climbed to 625 feet in clear weather before losing location data 50 seconds in, per Flightradar24. Saturday's 15-page report offers early insights.

A preliminary finding into last month’s Air India plane crash has suggested the aircraft’s fuel control switches were turned off, causing a loss of engine thrust shortly after takeoff.

The London-bound plane had barely left the runway at Ahmedabad airport before it careened back to earth. Everyone on board was killed, except for one passenger.