Recently, an American flight made an emergency landing shortly after taking off.System failure in the aircraft., the pilot was unable to contact the crew and heard someone knocking on the cabin door,Misunderstanding that someone was trying to break in, he turned back and made an emergency landing.¡£ However, after opening the cockpit door, it was found that the crew was knocking on the door.

It is understood that the flight was operated by American Airlines, which flew from Omaha, Nebraska, to Los Angeles International Airport the same day.