American Airlines Flight 547 from Reagan National Airport to Chicago’s O’Hare Airport was diverted to Dayton, Ohio, Friday morning after flight attendants reported dizziness and four passengers fainted.
The plane was passing through an altitude of 28,000 feet when two flight attendants felt dizzy and asked the pilot to drop oxygen masks, NBC News has learned.
Four people fainted but it is not clear whether they were suffering from a lack of oxygen or overcome by the tension of the moment.
The pilots were directed to land at Dayton International Airport.
All 140 people on board walked off the Boeing 737 in Dayton, and two people were taken to a hospital, American Airlines spokesman Ed Martelle said.
The airline is investigating the cause of the incident and sent another plane to take the passengers to Chicago, Martelle said.