When it cleared the plane to fly again, FAA Administrator Steve Dickson (pic) said he was confident that the jet was safe but warned that in-flight mechanical problems occasionally occur with all commercial aircraft.
American Airlines Co said on Friday that a Boeing 737 MAX bound for New Jersey's Newark Liberty International Airport declared an emergency after the captain shut down one engine over a possible mechanical issue.
American's Flight 2555 from Miami with 95 passengers and six crew landed safely at Newark without incident, the airline said.
