Federal Aviation Administration (FAA) of the United States on Tuesday announced that it had issued an emergency airworthiness directive regarding certain Pratt & Whitney PW4000 engines.

Federal Aviation Administration (FAA) of the United States on Tuesday announced that it had issued an emergency airworthiness directive regarding certain Pratt & Whitney PW4000 engines.
Airlines around the world have begun grounding their Boeing B777 fleets operated by certain Pratt & Whitney PW4000 engines following an uncontained engine failure on a United flight on 20th February,2021.
All Nippon Airways plans to suspend as many as 16 international routes in its summer schedule which begins from 28th March,2021.