The crash of China Eastern Airlines MU5735 into the ground should be the worst air crash in the mainland so far. The flight took off from Kunming Changshui Airport at 13: 10 pm on March 21st, and lost contact with the ground at around 14: 20 pm. It flew for an hour and 10 minutes in the middle, carrying 5 tons of aviation fuel when it took off, and lost contact over Wuzhou. From the pictures taken by the ground surveillance, the plane nose plunged vertically into the ground, and the crash was very tragic. Most of the wreckage of the plane is concentrated in the core area with a radius of about 30 meters around the main impact point, and the depth extends down from the surface to about 20 meters. Around the crash, rescuers only found the wreckage of the plane and the wallet, ID card, bank card and other personal belongings of the missing person, but she found nothing else.