A flight from Mongolia with code 7700 made an emergency landing in Beijing. What does this code mean?

1, the so-called 7700 emergency code means that if the plane encounters a special emergency during the flight, for example, the plane breaks down or there is a sudden illness on the plane. The pilot can adjust this code, and the ground air traffic control screen will identify the aircraft separately to provide convenience for the aircraft.

2. What does the emergency code mean? The 7700 code indicates an emergency, such as mechanical failure or sudden illness of organic personnel, but it does not necessarily mean that the aircraft is in a very dangerous situation. How many times did the 7700 emergency code appear? Eight times before and after.

3. The 7700 emergency code on the flight has two meanings, one is that the plane has a mechanical failure in the air, and the other is that there is an emergency medical situation.

4, code, refers to the aircraft in flight emergency, such as engine failure or sudden illness of passengers. The pilot can hang the 7700 code, so that the ground air traffic control identification can provide convenience for the aircraft in time. Aircraft distress code: 20 18. At the windshield rupture of Sichuan Airlines Flight 8633, the pilot also hung the 7700 code.

5, three of them are special, and 7500 stands for illegal acts, such as hijacking; 7600 stands for communication failure and 7700 stands for emergency. The 7700 code hoisted by Mongolian Airlines is an emergency. It can be preliminarily judged that this is not a problem of the plane, but a problem that passengers may suddenly become ill.