India, July 12 -- A preliminary investigation into the deadly Air India crash of June 12 was released on Saturday, revealing details of the final moments of the ill-fated AI171 flight that was bound for London's Gatwick from Gujarat's Ahmedabad and crashed within seconds of takeoff into a medical hostel building.

The report by the Aircraft Accident Investigation Bureau (AAIB) said that both engines on the Boeing 787-8 Dreamliner lost thrust shortly after takeoff from Ahmedabad on June 12 - because the aircraft's fuel control switches had been turned off.

The report also included a tense exchange between pilots extracted from the cockpit voice recordings recovered from the black box. In the first few, which were also the final, seconds o...