Investigators in India are studying the black boxes of a Boeing 787 Dreamliner after recovering them from the aircraft wreckage to ascertain the cause of last week’s plane crash that left at least 270 people dead.

Air India has cancelled 83 flights since the Ahmedabad crash of AI171, with 66 involving Boeing 787 Dreamliners. The DGCA has mandated intensified safety checks on the fleet. While 24 aircraft have cleared inspections,

The deadly crash of Air India Flight 171 last week has centered renewed scrutiny on the airplane's manufacturer, Boeing, and this time it's the 787 Dreamliner in investigators' sights. The accident, which killed over 270 people, was the first fatal crash for the Dreamliner since the model began flying in 2011.