Air India has completed precautionary inspections of the fuel control switch locking mechanisms across its Boeing 787 fleet and found no defects, an airline official said on Wednesday. The report revealed that fuel supply to both engines was cut off within one second of each other after takeoff.

Boeing’s engine fuel control switches, now the center of the investigation into the fatal Air India crash in June, have been scrutinized before.

In a statement, Japan's JAL said safety was its top priority, adding, "We are closely monitoring the investigation into the incident and will implement any necessary inspections based on its findings...