A top Boeing executive has apologized for the problems highlighted by the mid-flight blowout of a door plug on an Alaska Airlines flight, as two airlines began returning the troubled 737 MAX 9 planes to service.
The comments Friday from Stan Deal, CEO of Boeing's commercial plane unit, came three weeks after a door plug on an Alaska Air flight blew out in mid-air, focusing intense scrutiny on the huge aviation manufacturer and forcing the grounding of 171 planes for safety checks.
