The preliminary finding gives investigators a new line of inquiry as they study a crash that killed all but one of the plane’s passengers.

Investors and the wider public are looking for answers after Thursday’s crash of an Air India 787 jet. Both of the plane’s black boxes have been recovered.

The aviation watchdog’s review included an analysis of recent operational data, with a focus on Air India’s wide-body operations, particularly the Boeing 787 aircraft. DGCA last week ordered enhanced