Alaska and United Airlines Boeing 737 MAX 9 planes under scrutiny following door plug 'accident.' Here's what we know.
Alaska Airlines and United Airlines passengers faced major travel disruptions Monday after the Federal Aviation Administration forced the grounding of all Boeing 737 MAX 9 airplanes. It comes after Alaska Airlines flight 1282 on Friday had to make an emergency landing shortly after takeoff before a door plug blew off. Here's what we know so far about the investigation into the accident.