Xinhua News Agency, Beijing, April 20 Question: The person in charge of the relevant departments of the Civil Aviation Administration answered the reporter's question on the preliminary report of the "3.21" China Eastern Airlines MU5735 flight accident investigation
Xinhua News Agency reporters Zhou Yuan and Ye Haoming
At present, the "3.21" China Eastern Airlines MU5735 Aircraft Flight Accident Investigation Preliminary Report has been completed.
In response to relevant issues, Li Yong, deputy director of the Aviation Safety Office of the Civil Aviation Administration, was interviewed by a reporter from Xinhua News Agency.
Q: How are the relevant international conventions and domestic civil aviation regulations stipulated?
A: According to Annex 13 "Investigation of Aircraft Accidents and Incidents" of the Convention on International Civil Aviation and relevant regulations of domestic civil aviation regulations, the country that organizes the investigation shall complete the preliminary investigation report within 30 days after the occurrence of the aircraft accident and report it to ICAO and the participating countries. send.
In addition, according to the guiding recommendations of ICAO's Manual on Aircraft Accident and Incident Investigation, the preliminary report can be in the form of a final report, which mainly includes flight passages, casualties, aircraft damage, information on crew and related personnel, aircraft Confirmed factual information such as information, recorder conditions, and wreckage distribution, as well as follow-up investigation work plans.
Q: What are the main contents of the preliminary report?
A: The "3.21" China Eastern Airlines MU5735 Aircraft Flight Accident Investigation Preliminary Report mainly includes factual information such as flight history, flight crew, airworthiness maintenance, and wreckage distribution.
Since it is almost impossible to complete the cause analysis of a transport aviation accident within 30 days, the preliminary report generally does not involve the cause analysis and conclusion.
There are many difficulties in the investigation of the accident, and the evidence that can be obtained at present is relatively limited. Therefore, the main content of the preliminary report is the basic factual information at this stage, which is in line with the international practice.
Q: What are the follow-up investigation work plans?
A: In the follow-up, the technical investigation team will continue to carry out in-depth investigations such as wreck identification, classification and inspection, flight data analysis, and necessary experimental verification in accordance with relevant procedures, and scientifically and rigorously identify the cause of the accident.
Aircraft accident investigation is a complex systematic project, which requires comprehensive and in-depth investigations from the aspects of aircraft airworthiness, pilot operation, cockpit resource management, weather environment, and air traffic control command. If necessary, a lot of experimental verification work is required.
Historically, air accident investigations often require a long process. International transport aircraft accident investigations usually take more than 2 years, while complex accident investigations take longer.
For example, after the Air France 447 crash in 2009, the final investigation report was not released until three years later.
The investigation of the Yichun air disaster in my country also took nearly two years.
Although there are many difficulties objectively, we will always adhere to the working principle of "scientific rigor, seeking truth from facts", and in a responsible attitude towards history, we will not let go of any doubts, find out the cause of the accident as soon as possible, and make an investigation that can stand the test of history. in conclusion.
Once new important progress is made in the investigation, it will be announced to the public in time.