Relatives of people who died on a Boeing 737 MAX airplane that crashed in Ethiopia say, despite the plane returning to U.S. skies with its first passenger flight, they still believe the plane is unsafe.

Last month, the Federal Aviation Administration approved changes that Boeing made to an automated flight-control system implicated in two crashes that killed 346 people in all. In both crashes, the system pushed the nose down repeatedly based on faulty sensor readings, and pilots were unable to regain control.

On Tuesday, American Airlines flew a Boeing 737 Max with paying passengers from Miami to New York, the first commercial flight in U.S. skies since it was grounded in March 2019.

Ross Lord reports on the flight, and why victims' families are speaking out against Boeing