The Federal Aviation Administration said that Boeing’s instructions for how airlines should check the planes were insufficient and that the company would revise them.
Two days after a chunk of the fuselage blew out of one of the planes, the F.A.A. and the aircraft maker are still negotiating what to tell the airlines to do.
An Alaska Airlines plane made an emergency landing when a section of its aircraft ripped off in flight. Here’s what passengers should know about the aircraft, how airlines are responding and more.