Unsolved mystery (South Korean airliner crash)steemCreated with Sketch.

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More than 200 people were killed when a Korean Airlines Boeing 747 crashed near the International Airport in the early hours of August 6, 1997.
At that time, it was raining heavily and the weather was harsh. When the plane was about 5 km away from the International Airport, it suddenly disappeared from the radar screen and lost contact with the ground control tower. According to witnesses, the plane with the fire group fell into the dense forest near the airport, and heard the explosion.
After 17 hours of intensive work, U.S. rescue workers found about 70 bodies from the wreckage of the South Korean airliner that crashed in Guam and the site of the accident. Korean Airlines said 29 of the 254 people on board survived, including four crew members. The U.S. National Transportation Security Administration sent a special investigation team to the scene to investigate the cause of the accident. Two "black boxes" on the plane have also been found and sent to Washington for analysis.
Officials from South Korea and the United States have different opinions on the cause of the Korean Airlines plane crash.
The South Korean side stressed that the navigation device of the Guam Airport was in a state of failure at that time, and the personnel on duty of the airport control tower were not FAA staff. In addition, the weather was abnormal at that time, which eventually led to the plane crash. The US side believes that the failure of the navigation device should not affect the normal landing of the aircraft, and questions why the South Korean side replaced the Airbus flight on this route with a Boeing 747 chartered plane that has been flying for 13 years. Boeing aircraft manufacturing company said that its products have an accident rate of 1.78 per million.
On August 10, 1997, U.S. federal investigators said that the investigation found that when the South Korean airliner crashed, the computer software of the radar system at the Guam International Airport was failing to give an alarm in time when the plane approached the ground.
In general, when the aircraft flies close to the ground, the airport radar system will give an alarm, and the ground commander will remind the pilot in time. However, the investigation found that due to software problems, the radar did not find the situation of the South Korean aircraft approaching the ground, so the pilot did not receive the warning from the ground control tower before the crash.
On the one hand, the U.S. Transportation Safety Commission can't say that the cause of the crash is the lack of a national radar system. There may be many factors in a plane crash.
In addition, the navigation system used to guide the landing of the aircraft at the airport had been out of use for a long time before the accident; when the aircraft approached the airport, heavy rain was falling on the island, which were the possible factors for the investigators to study the aircraft accident.
Spontaneous combustion of human body
The so-called spontaneous combustion of human body refers to the spontaneous combustion of a person's body without contact with the external fire. This incredible phenomenon was first seen in medical reports in the 17th century. By the 20th century, there were more than 200 incidents.
At the beginning of the 19th century, some people thought that this kind of disaster only came to women who were too drunk, obese and living alone. However, many subsequent cases have proved that the number of victims is roughly equal in gender, ranging from infants to 114 years old. In addition, there are many cases of spontaneous combustion where there is no fire source.
One of the most early evidence of human spontaneous combustion was recorded by bartolin in 1673. It was a poor woman in Paris who went home to bed one night and died of spontaneous combustion at night. The next morning, it was found that only her head and fingers were left, and the rest of her body burned to ashes. According to this spontaneous combustion event, the first paper on human spontaneous combustion was published by the Frenchman Rael in 1800.
In a short period of time, France, Britain and Italy all had cases of human spontaneous combustion which caused a sensation. What is more influential is that on December 27, 1976, six members of a family of seven in Lagos were burned to death, which was reported by the "arlia Herald", becoming the most difficult mystery to explain at that time. From the point of view of the damage, all the bedding of the deceased was left intact, but the investigation showed that the bedding was intact.
Although many police, fire brigade, arson experts and pathologists have put forward many evidences, there is no reasonable physiological evidence to prove why human body spontaneously ignites or even turns into ashes. Conventionally, human organs, tissues and bones can burn only in a high-pressure crematorium at 900-1000 degrees centigrade, and self combustion is really incredible. In addition, there are no other factors that can explain the spontaneous combustion of meteors, such as laser, magnetic explosion, and lightning. In short, the phenomenon of human spontaneous combustion is still a mystery.