The aircraft will bump and fall when encountering airflow at high altitude. If encountering strong airflow, it will lose control for a short time, but there is no danger of crash. Only corresponding measures need to be taken to prevent injury.
It is a common phenomenon for an aircraft to encounter airflow at high altitude. There is usually no danger, but there will be bumps and falls. Therefore, before the aircraft takes off, you must be prepared and fasten your seat belt to prevent being hit or flying out of your seat.
Moreover, in case of strong airflow, the aircraft will lose control for a short time, but there is no danger of crash for the aircraft in flight, so the casualties of passengers are not large.
Generally speaking, if there is bad weather that will affect the flight of the aircraft, the meteorological observatory will also give early warning in advance. At this time, the pilot can bypass this area or return directly if it is more serious, which will cause aircraft delay or shutdown.