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.

NEW DELHI — Air India is facing disruptions following last week's fatal crash as additional safety inspections on its 787 fleet have led to flight delays, cancellations and growing passenger

India's aviation safety watchdog said on Tuesday surveillance conducted on Air India's Boeing 787 fleet did not reveal any major safety concerns, days after one of its jets crashed, killing at least 271 people.