Air India faces fresh turbulence following last week’s fatal crash as additional safety inspections on its Dreamliner fleet lead to flight delays, cancellations and growing passenger anxiety

The move came a day after Indian officials told the airline to improve its operations, and as delays and canceled flights are drawing complaints from passengers.

India will send the black box recovered from the recent fatally crashed Air India plane to the U.S. for analysis, business newspaper The Economic Times reported on Thursday, citing people aware of the development.