Boeing’s 737 has been around since the 1960s. There have been many variations of the aircraft but the 737 Max, which debuted in 2017, has encountered problem after problem over the last five years. From two fatal Max 8 crashes in 2018 and 2019 to the more recent incident of a door plug falling off a plane during take off from Portland, Oregon. CNBC explores how the 737 Max crisis unfolded and what the future holds for Boeing’s best-selling jet.
