During the flight of Sichuan Airlines, the glass in the cabin burst and the captain calmed down. There were no casualties. This aviation incident is a world-class aviation history incident, which praised all the crew of Sichuan Airlines. This aviation incident can be safe and sound. What are the specific factors contributing to it? Let's talk with Xiaobian.
The reporter interviewed several people in the flight industry, who believed that the captain's super calm and professionalism after the incident was the key to successful disposal. In addition, the aircraft just flew out of Chengdu, not into the mountains is also a key factor.
Fast!
From a broken window to wearing an oxygen mask, the driver can only respond in 13 seconds at most
According to an industry source, the crash landing is an event worthy of aviation history. During the flight, the 7700 code means, 'there is an emergency and it may crash at any time. 'the cruising altitude of the aircraft is generally at the bottom of the stratosphere, which is absolutely not suitable for human survival. Its temperature can generally reach about - 450 ℃. Strong wind and subsonic strong air flow will make the body sensible temperature reach minus fifty or sixty degrees in a flash. Then there is the impact of air flow, sharp air flow impact is very affecting driving. What is the main thing? At this altitude, when the aircraft loses pressure, it must land to 10000 feet within the specified time, and there is at least a drop of about 17000 feet, which will be unbearable to passengers. The aircraft will dive down as if it were a crash, within its maximum overload load range.
This is the second time in history. The driver has only 13 seconds to react and put on the oxygen mask. It only takes 13 seconds for him to react when the window is broken. Once the 13 seconds pass, the whole plane is finished.
In fact, it's not 13 seconds. According to the law, the minimum limit is 7 seconds. It has seven seconds of stunned response time, four of the remaining six seconds, and he needs to wear an oxygen mask. Turn on the oxygen switch. The actual operation time is only two seconds, to think about what to do next. This is due to the usual training and experience, we must praise.
A captain of Air China said in an interview that this is a major event and a world-class aviation history event. The higher the altitude is, the lower the air pressure is and the lower the temperature is. The first reason is that the air pressure inside the aircraft is the same as that outside the aircraft when the glass of the aircraft is broken. To let the people in the plane breathe, we can only descend to the altitude where people can breathe normally. This is the normal way for us to deal with this matter. But when they are on the plateau, it is very serious. If you fly too low, you are in danger of death.
The second is that the probability of this kind of event is very low, there is no precedent in the world, there is no mature treatment method for reference, and it depends on the training, experience and on-the-spot play of crew members in ordinary times.
Luck!
If you fly west to the mountains, the descent height is limited, and the consequences are unimaginable
An unnamed captain of Sichuan Airlines said in an interview that it was very difficult for them to handle the flight. The special service has its own characteristics. This incident is first of all accidental. It's basically an unlikely event with a very small probability. Liu Chuanjian and his colleagues are on the morning shift. They should get up at 3-4 o'clock. They are very tired. They are also carrying out special flights on the plateau. After the windshield breaks, the situation will be very chaotic, but it is not easy for them to keep calm.
The reason why the tyre broke on the Internet is that the crew took an overweight landing in order to land as soon as possible, which is not the technical reason for the rumor. Their technology has been perfect.
Fortunately, they have just passed Chongzhou. If they fly to the west again, they will not be able to reach the minimum safe altitude of 10000 feet in the mountains, and the consequences will be unimaginable. However, in case of such pressure relief, it is necessary to descend below 10000 feet in an emergency, so that there will be sufficient oxygen and appropriate temperature. The Lhasa line, mostly in mountainous areas, can only descend to a height of more than 23000 feet due to terrain constraints. At that height, the oxygen and temperature are extremely low, and their windshield is gone. It is a problem whether the oxygen mask can be worn well under strong wind, let alone extremely low temperature. I saw him fly 24000 feet for a few minutes and then descend. There should be a reason to fly out of the mountains and then descend. This is very demanding for the captain.
In addition to location, weather and other favorable factors, emergency response in the air is also very professional.
The captain shall be decisive in handling, follow standard procedures, operate properly, and have clear procedures. The communication with ATC (controller) shall also be timely and effective, which is very difficult in such a chaotic situation.
He said that Sichuan Airlines will retrain the simulator twice a year, and will practice various special services on the simulator, that is, to train the handling ability of pilots in special circumstances, as well as the training for the special circumstances such as cabin rupture.