breaking news as the faa, the agency, a short time ago, announcing it's ordering the temporary grounding of certain boeing 737 max nine aircrafts. operate by u.s. airline, in u.s. territories. affecting approximately 171 airplanes worldwide. the reaction is coming after a passenger on board and alaska airlines flight out of portland last night, taking this video. only in-flight for about 20 minutes. when a piece of the plane, a piece of the plane, blew out midair. the plane wall. the aircraft was forced to make an emergency landing back in portland. imagine the terror on that flight when a piece of the plane wall comes out midflight. i want to bring in nbc's priscilla thompson, who's in houston for us, as well as retired faa ntsb aircraft accident investigator jeff guzzetti. priscilla, start us.