Now, the latest news about the accident of China Eastern Airlines Flight MU 5735 two black boxes have been found. What will happen in the search for the black box? How long will it take for the black box to operate one code
Li Yong, deputy director of the Aviation safety Office of the Civil Aviation Administration of China, said in an interview with CCTV that
it is difficult to estimate how long it will take to complete the work, adding that the investigation of the accident still faces three major challenges
At present, the two black boxes have been sent to professional laboratories and are carrying out corresponding work in Yima
Li Yong, deputy director of aviation Safety Office of Civil Aviation Administration of China, introduced the main expert of 321 Mu 5735 aircraft flight accident technical investigation group
Normally, the black box only needs to be plugged into the power supply and connected to a special device to download the data
and remove the blood pressure virus. If the black box is played properly, it takes about 34 hours
But the two black boxes damaged in the accident are more serious Create uncertainty for subsequent work After we get back to lab, need to check in detail
And it need to do some cleaning job Including drying! May even need to do some forcible entry Then according to the using we dedicated this in our program
In the lab, we're doing this well, we're doing checks and if there's a problem with the chip,
we're probably going to have to fix the chip later on so it's hard to estimate how long it's going to take to complete the code
Why is the search still going on after the black box has been found? Li yong said the wreckage is also important to the investigation of the accident
Finding more debris and understanding its distribution can help us understand the attitude of the plane when it landed and the Angle of impact and so on
The damage could also conceal important evidence such as the position of the operating surface and engine power that could be compared with data from the flight data recorder in the future
Video analysis and interviews with witnesses also helped determine the attitude and Angle of the plane before it hit the ground
Li yong said a typical international transport aviation accident investigation usually takes more than two years
There are three major challenges to the investigation based on the information that we have so far. The first challenge is that the aircraft had no warning signs after the sudden descent from this altitude from this loop altitude
Our air traffic control didn't receive any written messages or abnormal messages from the crew and didn't give us any useful information
So the second one, when we opened the scene, the impact was also very violent and the debris was very fragmented and very widely distributed, which gave us a later period
Forensics from the wreckage was also very difficult and the site was very difficult geographically because it was in a valley and the impact and this long period of this rain bubble
Well, the land is very muddy and our investigators have many difficulties in carrying out their work. Li Yong said that the investigation will take some time to solve these difficulties. However, he and his colleagues will try their best to find out the cause of the facts as soon as possible
The basic contents of the final investigation report according to the procedure of civil aircraft accident and post-accident investigation include the factual information found in the investigation, the analysis of the cause of the accident and the unresolved problems in the investigation mainly based on the accident conclusion
It is worth noting that putting forward targeted, timely, comprehensive, operable and systematic safety suggestions is also an indispensable part of the investigation report
Take the sichuan Airlines 514 incident investigation report released by China Civil Aviation Safety Information System in June 2020 as an example
The main body of the final report is 131 pages long and contains hundreds of pages of duplicate 14 experimental reports. The comprehensive and detailed disclosure of facts, analysis, conclusions, safety recommendations, and safety measures has been evaluated by many experts in the field of civil aviation as a very solid and meticulous investigation
To do a good job in the investigation and handling of the accident strictly from facts to details and find out the cause as soon as possible is not only to fully and accurately restore the truth of the incident, clarify the responsibilities of all parties, but also to summarize lessons and eliminate hidden dangers
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