Alaska Airlines Flight 1282 from Portland to California experienced a mid-air emergency on January 5th when part of the Boeing 737 Max 9's fuselage blew off, forcing an emergency landing. In the days before, the plane's pressurization system had generated warning lights on 3 previous flights, though crews reset the system per procedure. The detached fuselage section was a "plug door" that filled the space of an emergency exit. It blew off at 16,000 feet, decompressing the cabin.