Air India is facing fresh turbulence following last week’s fatal crash as additional safety inspections on its Dreamliner fleet have led to flight delays, cancellations and growing passenger

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.