What caused the Malaysia Airlines plane crash?

According to the position of Flight MH370 before it disappeared from the radar system (06' 55' N15 E 103'34'43), it was about over the Gulf of Thailand in northern Malaysia and southern Vietnam. At this time, because the plane has been flying for two hours, it enters the cruising altitude as usual, and the Subang Air Traffic Control Station mentioned in Malaysia Airlines' statement.

The captain of a domestic Boeing aircraft told the reporter of China Business News (Weibo) that after the plane enters a level flight, the controller will also closely monitor the signs of each flight through the radar. Every time you enter a new control area or leave the control area, the crew will talk to the controller and report the altitude. In the same control area, if there is no big change in heading and speed, the conversation frequency between the crew and the controller will be reduced, while in level flight, most of the time.

Flight MH370 suddenly lost contact with the console during the level flight. In this regard, aviation manufacturing expert Zhou Jisheng analyzed this reporter. If the plane has a general fault, the pilot always has a chance to contact the ground, and the probability that the communication system and navigation system are completely interrupted during the level flight is not great. The plane suddenly "disappeared", most likely disintegrating in the air.

On May 25th, 2002, a Boeing 747-200 passenger plane carrying 206 passengers and 19 crew members disintegrated and crashed at an altitude of 23 nautical miles northeast of Magong City, Penghu County, killing all the people on board. After investigation, the reason was that the aircraft damaged the skin by scraping the ground during the previous mission, but the company only covered the skin with an aluminum plate with an area similar to the damaged skin, and did not replace the whole skin according to the maintenance guide formulated by Boeing. Finally, after many flights, the accumulated metal fatigue caused damage and cracking, and the tail of the plane fell out of control, and finally crashed out of control due to pressure loss.

According to the information disclosed by Malaysia Airlines, the age of the 777-200 aircraft on the missing flight is less than 12 years. According to the service life of the plane, it is far from old. However, on 20 12, this plane also collided with an Airbus A340 at Shanghai Pudong Airport, and the right wing of the passenger plane was damaged, and it was grounded for maintenance for many days.

Zhou Jisheng further stated that there is not only one reason for the disintegration of the aircraft in the air, besides the explosion caused by human factors such as terrorist attacks, it is also possible that the pressure loss caused by the problem of the aircraft seal led to the disintegration. For example, on February 24th, 1989, a United Airlines 747- 122 plane flew from Honolulu to Auckland, New Zealand. When the plane climbed to 7000m, a section of the fuselage was torn open due to the cargo door, which instantly "exploded" and lost pressure. A big hole appeared on the side of the fuselage, and nine passengers were sucked out of the cabin and fell into the Pacific Ocean.

On August 14, 2005, the communication of Apollo 522 flight 737 was also interrupted over Athens. The plane suddenly descended and fell to the ground, and all the people on board 12 1 were killed. The reason is that pilots and drivers did not take oxygen inhalation measures in time without knowing that the cabin was not pressurized until they fainted and lost consciousness.

Compared with the above-mentioned plane loss incident, another feature of flight MH370 is the "red-eye flight" flying after midnight, which once raised doubts about the ability of crew members or air traffic controllers to judge and deal with emergencies.

On a global scale, long-distance international flights are bound to have "red-eye flights" because they have to cross the time difference, while some short-distance international flights in Asia often have "red-eye flights", which are welcomed by passengers because the fares are relatively cheap and can even save a day's accommodation or road journey.

The reporter consulted a number of air traffic controllers and pilots and thought that the occurrence of the air crash had little to do with the "red-eye flight". However, compared with the daytime, the energy at night is indeed at a low ebb, and emergency rescue may be slow in dealing with emergencies.

According to media reports, an air traffic controller in Sanya said that around 1 on the morning of the 8th, Vietnam asked if there were any flights. "I said no, he hung up. He told me that the plane was missing around two in the morning, and then told me at three in the morning that their company said that the plane was still flying, and then I asked Hong Kong to help me shout, and it was nothing. "

It is worth noting that six hours after the plane lost contact with the control station, Malaysia Airlines issued its first statement, announcing that the flight was lost. International search and rescue agencies from Malaysia, Singapore and Vietnam only started search and rescue operations on the morning of the 8 th. The China missile frigate Mianyang, which is on a mission in Nansha, set sail for the accident area on the evening of the 8th, while the "Sea Patrol 3 1" belonging to the Ministry of Transport left Hong Kong on the afternoon of the 9th, heading for the lost sea area of Airlines passenger plane.

Although the joint search scope of various countries has expanded from the waters bordering Vietnam and Malaysia to the waters on the east and west sides of the Malaysian Peninsula, including the surrounding areas of the Straits of Malacca, no wreckage or location has been found.

An industry insider told this reporter that if the plane disintegrated in the air, fuel, body parts, luggage and even bodies would float on the sea. If the plane enters the sea as a whole, it will sink to the bottom of the sea, or something may float partially after being crushed by seawater pressure.