U.S. says Boeing 737 MAX 8 airworthy but will act on any safety concern

U.S. says Boeing 737 MAX 8 airworthy but will act on any safety concern The United States will tell international carriers later Monday that the Federal Aviation Administration believes the Boeing 737 MAX 8 is airworthy as they scrutinize two fatal crashes of the new model of aircraft since October but emphasized they will "take immediate action" if regulators identify any safety issue.