The cause of the crash of China Eastern Airlines passenger plane is indicated in font.

Mechanical failure, weather, human factors.

1. Mechanical failure: During the flight of the aircraft, mechanical parts may fail, such as engine, wing, tires, etc. If the crew can't find and deal with these faults in time, it may lead to the plane crash.

2. Weather reasons: Bad weather conditions are also one of the reasons for the plane crash. For example, strong winds, heavy fog, heavy rain and other weather conditions will affect the flight performance of the aircraft and the sight of the crew, increasing flight risks.

3. Human factors: Human factors are also one of the important reasons for the plane crash. For example, crew errors, pilots' fatigue driving, and improper air traffic control command may have serious consequences. The specific cause of the crash of China Eastern Airlines passenger plane still needs to wait for the investigation results of relevant departments.