In this March 7, 2017, file photo, the first of the large Boeing 737 MAX 9 models, Boeing's newest commercial airplane, sits outside its production plant, in Renton, Wash. Boeing Co. announced Tuesday, April 4, 2017, that it has signed a new, $3 billion deal with Iran's Aseman Airlines for 30 Boeing 737 MAX aircraft. Chicago-based Boeing said the deal includes purchase rights for an additional 30 737 MAX aircraft. (AP Photo/Elaine Thompson, File )