A tail of an Air India Boeing 787 Dreamliner plane that crashed is seen stuck on a building after the incident in Ahmedabad, India, June 12, 2025. (REUTERS/Amit Dave/File Photo)

The London-bound Boeing 787 Dreamliner, which started losing height after reaching an altitude of 650 feet, crashed moments after takeoff from Ahmedabad, India, killing 241 of the 242 people on board and the rest on the ground.

The investigation into the Air India crash is focusing on the movement of the engine fuel control switches following an analysis of the 787's flight and voice data recorders, along with a simulation by Boeing of the aircraft's final moments, one of the sources said.

The investigation has not raised any immediate concerns over mechanical failure, the source said, and there has been no bulletin to airlines recommending changes to 787 operations.

Aviation industry publication the Air Current  first reported the focus on the fuel switches that help power the plane's two engines.