Nearly 200 Boeing 737 MAX 9 airplanes grounded after door plug flies off mid-flight
NTSB chair pushes for 25 hours of cockpit voice and flight data recordings On Saturday, the Federal Aviation Administration (FAA) ordered the temporary grounding of approximately 171 Boeing 737 MAX 9 airplanes one day after an emergency exit seal, known as a door plug, blew out of one operated by Alaska Airlines mid-air....