United Airlines said Friday it pushed back its expected date for Boeing's 737 MAX aircraft to return to service, following similar announcements by rivals Southwest and American Airlines. The US air carrier now says it expects flights to resume on March 4, 2020, two months later than a previous estimate, implying the cancellation of thousands of scheduled flights. The top-selling Boeing jets have been grounded since March of this year following the second of two crashes which left 346… (www.yahoo.com) 更多...
