>> reporter: lucky, according to passengers, no one was seated in that spot. >> there was a mom and son sitting in that aisle and the son's shirt was, like, completely blown off and body was red. i'm assuming due to the irritation of the wind >> reporter: reaction to the incident coming swiftly with the ntsb investigating the faa is requiring immediate inspections of certain boeing 737 max 9 planes before they can return to flight alaska airlines immediately grounded its 737 max 9s for inspection the airline says it's already checked a quarter of its fleet with no concerning findings, and that aircraft will return to service as their inspections are completed with full confidence boeing today saying today, "safety is our top priority and deeply regret the impact this incident has had on our company and customers and passengers the airplane manufacturing saying it will support the investigation. a nighttime flight leaving passengers stunned by this scare in the air >> so grateful we weren't higher