Seattle: The Boeing 737-9 Max airplane that was used for the first Alaska Airlines passenger flight on a 737 Max plane sits parked at a gate, Monday, March 1, 2021, before a flight to San Diego from Seattle-Tacoma International Airport in Seattle. The 737 Max, a mid-size plane used mostly on short and medium-range flights, recently returned to flying after being grounded worldwide for 20 months following two fatal crashes. Alaska plans to have four 737 Max airplanes in service by April. AP/PTI
