Boeing may be getting an order for up to 15 of the ultra-long-range 777-200LR jetliners, a boost in the company’s effort to keep the Everett line going at full rate until the 777X is in full production. The Wall Street Journal on Tuesday reported that Emirates Airlines President Tim Clark said a potential order is “under the microscope.” Clark spoke at a side interview at the International Air Transport Association’s annual meeting, June 7 through June 9, in Miami.