The two black boxes of the China Eastern Airlines flight accident were found, what information was s

Black box. It is mainly divided into flight data recorder and cockpit voice recorder, the former mainly records 60 important data such as speed, attitude, and wind force before the accident. Or the equivalent of a voice recorder, which records all conversations and other sounds in the cabin, usually only the first 30 minutes of recording.

Professionals regularly collect this data to find out if the aircraft is faulty, and if the aircraft has an accident, the retained data can be used to simulate the plane crash scenario.

How were the two black boxes found?

After the accident, investigators drew a key search area at the scene according to the impact situation, and the first black box searched relatively smoothly, and it was found after searching for about two days in the core area. It is relatively difficult to find the second black box, which is logically installed at the tail end, and the distance between the two will not be too far after landing, but the firefighters have been looking for a long time in the vicinity but have not found it. Later, the experts went to analyze the posture of the plane when it landed, and judged that the second black box should be on the left hillside, and sure enough, they dug rice into the ground in the area and found the second black box.

How are the two black boxes damaged?

The two black boxes found were seriously damaged, and under the violent impact, only one cylinder was left in the black box, and the base was gone, and now it has been sent to a professional laboratory in Beijing to prepare for decoding. The black box is inspected in detail before decoding, which can take several days or a month, depending on the damage.

What remains to be done after the black box is found?

In order to accurately analyze the cause of the accident, the staff must collect the wreckage of the aircraft that can be collected, as well as collect the description of the plane crash seen by witnesses, and then compare it with the plane crash scene taken by the surveillance. Not a single detail can be missed, and it has now been confirmed that there are no survivors of the plane, but the search is still ongoing at the scene, just for fear of missing something.

The black box of the aircraft data recorder is specially designed to record various data in the flight, such as the flight time, speed, altitude, skewness of the aircraft rudder surface, engine speed, temperature, etc., and the black box of the pilot's language recorder, which records the speech between the pilot and the pilot and the passengers and flight attendants in the cockpit.

Conversations and other sounds in the cabin are stored, data on the flight of the aircraft, flight status of the aircraft, scenes of accidents on the plane, and conversations with the crew in the cabin are all stored in the black box.

The messages inside the plane before the crash and the conversations of the plane are stored. The data in the plane, the flight record in the plane, and some exchanges and recordings in the plane.

There are recordings of the cockpit, flight data records, various mechanical instrument data of the aircraft, and some ** in the cabin, which can be used to understand more about the condition of the aircraft, which is very important.

The first black box was discovered on March 23. On the evening of the 23rd, the director of the Aviation Safety Bureau of the Civil Aviation Administration said at a press conference that the appearance of the black box was seriously damaged. Subsequently, the National Flight Accident Emergency Command of China Eastern Airlines announced at a press conference that the data** and analysis of the first black box are underway, and the possibility of damage to the storage unit due to the damage of the aircraft cannot be ruled out.

But progress seems to have been faster than expected.

The black box, also known as a flight recorder, can provide investigators with information about how the plane flew before the crash. It is an important piece of evidence for accident analysis** and data for making the right judgment about the accident**. The black box consists of two separate components:

Flight data recorder and cockpit voice recorder. The flight data recorder can record the state that the aircraft should be in at the moment. The cockpit voice recorder records the audio recording of the cockpit of the aircraft.

The cockpit voice recorder ensures that the pilot gives the command, and the flight data recorder ensures that the system receives the command and converts it into a control signal".

The investigation of the cause of the plane crash requires a scientific and rigorous process, and it also needs to be supported by various key evidence. In general, weather factors, operator errors, mechanical failures, external damage, etc. can cause air crashes.

Therefore, we need two black boxes to verify each other. From the cockpit voice recorder that has been found, we can verify that the flight crew has not made a mistake or suffered external damage, while the flight data recorder can show us the weather conditions and mechanical problems at the time of the incident.

The flight data recorder can record more than 60 kinds of data, of which 20 important data must be recorded, such as acceleration, fuel volume, control surface position, etc., which are important data to judge the operating status of the aircraft at the time of the accident, so the second black box may play a key role in analyzing the cause of the accident.

A search team carried out manual fine excavation operations at a position 5 degrees south-east of the impact point in the core area and 40 meters from the impact point. When fire and rescue personnel dug to a depth of about a meter below the surface, they found a cylindrical metal tank wrapped in dirt after turning over a tree root. It was then quickly handed over to civil aviation experts for identification and confirmed to be the second black box of the crashed aircraft.

When the fire rescue personnel dug to a depth of about a meter below the surface, they found a cylindrical metal canister covered in dirt with only a little orange exposed. After the dust on the surface of the metal tank was purged and cleaned, a clear English logo was revealed. Subsequently, the metal tank was quickly handed over to civil aviation experts for repeated identification, and it was confirmed that it was the second black box of the crashed plane.

It was found in the core area of the plane crash meters underground, and the exterior looks intact, but the base is missing and is being further cracked.

Analyzing the data of this black box, it will take about three days at the shortest, which is also for the degree of damage to the black auction hall box, if the damage is relatively large, it will take about a week, and it will take even longer.

The shortest time is about half a month, and if the black box is seriously damaged, it may reach about three months to five months.

It may take a few weeks, but the exact situation has not been released to the public, and it is unclear whether the data has been damaged.

On March 28, 2022, the relevant departments held a press conference on the major air crash of China Eastern Airlines on March 21, saying that on the 28th, the DNA of all 132 people on the crew had been compared with the black box that completed the crash. Therefore, many people are very puzzled, why have all the black boxes been found, and the search is still ongoing? Because the black box was badly damaged when it was found, the searchers could only continue to work to help the experts better judge the posture of the plane when it landed.

1. The black box in the China Eastern Airlines crash has been found

Through the search staff day and night search for the two black boxes, they have also been found one after another, so the relevant personnel also hurriedly sent these black boxes to the professional laboratory, and the relevant staff are also deciphering the two black boxes. According to the introduction of professionals, the decipherment of the black box generally only needs to be connected to the power supply, and then connected to the special decoding equipment, you can decipher the contents through the ** data, if the black box is intact, the whole process only takes about three or four hours. <>

However, due to the seriousness of the air crash, the search and rescue personnel found the black box when it was very damaged, and now the black box found is only some memory chips and storage units, and the base is gone. Therefore, after the black box is taken to the laboratory, it has to be dried and cleaned, and even dismantled work, and if there is a problem with the chip, it will have to be repaired later, so it takes a long time. <>

2. Why the search is still ongoing

Although the black box is very helpful in this air crash, the wreckage of the plane also has a great role, searching for more wreckage and understanding the distribution of the wreckage, which is conducive to experts to better understand the attitude of the plane when it lands and the angle and strength of the impact. There may also be some important evidence in the wreckage, such as the power of the engine, the position of the operating surface, and the later can be compared with the flight data recorder.

At present, the two black boxes are seriously damaged, and what has been found is actually a memory chip unit, and the base of the black box is gone, so the search is still ongoing.

Because the search work is not only to find black boxes, but also to find some human tissues of the victims, to find some relics, and also to find some aircraft fragments, as far as possible to avoid missing them.

On March 27, the second black box of the 321 China Eastern Airlines flight accident passenger plane has been found, and was sent back to Beijing by the flight at one o'clock in the afternoon of the same day, according to the reporter in front of the front desk, the second black box tank that was found is relatively complete, and the on-site staff introduced that the location of the second black box was found in the emergency positioning transmitter installed near it, and the location found was very close, and the staff of the Civil Aviation Administration responded that the decipherment of the black box was slow, and it may take half a year. This is because the process of deciphering black boxes is very complex. <>

1. Why does it take up to half a year to decrypt the black box?

Some experts believe that the time to decrypt the black box has a great relationship with the degree of impact damage caused by the crash to the black box, and it is not easy to judge how long it will take to decipher it according to the current situation, and in history, it takes several months or even months for the black box to read the data, in fact, it depends on the degree of damage, and the staff of the Civil Aviation Administration of China publicly responded that it may take a few days to decipher the black box quickly, and it may take half a year if it is slow.

The reason why it may take up to half a year to decrypt the black box is that the whole process of reading the black box is very complex, for example, the analysis of the organization requires different professionals to analyze, and the evaluation of the analysis results also requires further collection of some information to confirm the inference, and then carry out experimental verification, simulation reproduction, etc. <>

2. What is the value of black box data?

Because the black box recorded some very important information about the China Eastern Airlines accident at that time, it can provide the air crash investigators with the flight status of the plane some time before the death and the moment of death, as well as the equipment on the plane, and the content of some staff conversations in the cockpit, which can be a very important basis for judging the cause of the plane crash, then you need to go through some data restructuring and repair tools, and the situation will be more complicated. <>

The time it takes to decrypt the black box depends on the integrity of the device, if the device is in good condition, it is possible to complete it in a short period of time, and if the damage is severe, it will take a long time to repair the data first. Therefore, it is difficult to specify the specific time**. After the decoding is completed, the investigation team will make a preliminary judgment based on the content and data obtained, combined with the overall operation process of the aircraft and the investigation experience.

The most important thing in the whole process is to find anomalies, and once you find suspicious points, you will not let go of any clues to analyze the suspicious points.

Because it is very difficult to decipher a black box, there are many difficulties to solve during this period, and this depends on the degree of damage of the black box, if the damage is not very serious, then the decommissioning time will be fast, but if the black box is very badly damaged, then it may take up to half a year. We must believe in our country and never be in a hurry.

Because the black box is very well made, its entire shell, including the construction technology, is very advanced, and how to unlock it requires a certain amount of time to study, and we have to study it before we can decipher.

Because decrypting the black box requires a lot of technology, it cannot be decrypted for a while.

I don't think it's very difficult to search for the first black box, after all, this black box doesn't have a specific drop location, and the relevant departments have also expanded the search area, but because of the impact of the weather at that time, the search was difficult, and after a long time, the existence of the first black box was discovered.

The search process is particularly difficult, and it is all slowly searched by the searchers with their hands, little by little.

The searchers used the grid deployment method to search in shards, and also used reconnaissance equipment.

The crash of China Eastern Airlines MU5735 plane, all passengers and staff, was very distressing. The plane crash seems to have no warning, and only by finding the black box of the wrecked plane can we understand the whole course of the incident. What exactly is recorded in China Eastern Airlines MU5735?

The black box is actually a flight recorder, which is analogous to the dash cam of a car. Although it is called a black box, the black box is generally orange, which is more conducive to search and rescue teams. The purpose of installing black boxes on airplanes is to investigate aviation accidents, which is why people struggle to find black boxes after plane crashes.

There are two black boxes, one is the cockpit voice recorder and the other is the flight data recorder. The black box records the voice of the cockpit and the flight data, which can well restore the truth of the aircraft accident and facilitate the identification of the cause of the crash. After the crash of China Eastern Airlines MU5735, the rescue team immediately rescued.

At the scene of the accident, the rescue team is not only tasked with rescuing survivors, but also to find the black box and find out the truth about the plane crash. If we can't find the black box, or if there is no black box on the plane, we won't know the cause of the crash, and the crash may forever be a mystery like Malaysia Airlines.

According to reports, the first thing that was found was the black box of China Eastern Airlines MU5735, which is a cockpit voice recorder that can record four channels of sound. As the rescue team searched, the second part of the wrecked plane, the black box flight data recorder, was also quickly found.

Although all the black boxes of China Eastern Airlines MU5735 have been found, none of the passengers and employees on the plane have been spared, which is very sad. The only information we can know so far is that after the crash of China Eastern Airlines MU5735, the relay call of the air traffic control and the nearby crew MU5735 was recorded, but none of the calls of the nearby crew were answered. Although all the black boxes have been found, the contents of the black boxes will take a certain amount of time to decipher.

The crash of China Eastern Airlines' MU5735 is very distressing, and at the same time, it has also attracted a lot of social attention, and people are also curious about the content recorded in the black box. Although people are very concerned about the China Eastern Airlines crash, the contents of the black box will not be released.

After the air crash, there are certain principles for the disclosure of relevant information. Under normal circumstances, the number of people on board, the number of staff and foreigners on board will be announced first, but the cause of the accident cannot be announced immediately. Although we are eager for the truth of the plane crash, the audio recording data involved in the plane crash is confidential, and the contents of the black box will not be made public in order to avoid causing social panic and misinterpretation by some people with ulterior motives.

The crash of China Eastern Airlines MU5735 has saddened many Chinese, and it is hoped that the content of the black box will be cracked as soon as possible to restore the truth. At the same time, he also mourned for the victims and hoped that the disaster would be far away from the world.