In a YouTube video, Captain Steve, who has flown both the Boeing 777 and the Boeing 787, said, "Three main theories revolve around the loss of lift of this aeroplane."

National Investigation Agency and other central agencies have joined the probe, visiting the crash site on Friday to assist with forensic examination

'11A' was one of the 238 economy class seats in the ill-fated Air India Dreamliner that crashed on Thursday, killing 241 people onboard and leaving just one survivor. And the lone survivor -- a British national Vishwash Kumar Ramesh (45) -- was the occupant of '11A'.

According to early visual analysis, the Dreamliner failed to follow normal flight configuration shortly after liftoff

These are only early-stage hypothesis and the actual reasons will only be determined once investigations are complete and after recovery and analysis of the Flight Data Recorder (FDR) and Cockpit Voice Recorder (CVR).

Flight data shows the aircraft barely reached an altitude of 625 feet before issuing a mayday and losing contact with the control tower

Flight AI171 investigations continue with global agencies, including the U.S. NTSB, FAA, GE, and Boeing, assisting the AAIB.

Dreamliner, was carrying 230 passengers and 12 crew members when it crashed into a residential area shortly after take-off from Ahmedabad airport on Thursday afternoon.