On March 25, Mao Yanfeng, director of the Civil Aviation Administration's Accident Investigation Center, said at the fifth press conference of the National Emergency Response Headquarters for the flight accident of China Eastern Airlines MU5735 aircraft on March 21, according to the International Civil Aviation Convention, which is the annex to the Chicago Convention. 13 According to the relevant standards of the "Investigation of Aircraft Accidents and Incidents", the preliminary report should be sent to the relevant countries and ICAO within 30 days from the date of the incident, and should be sent in the working language of ICAO. Chinese/English are the work of ICAO. language.

The Civil Aviation Regulations of China "Regulations on Investigation of Civil Aircraft Incidents" stipulates that the Civil Aviation Administration shall submit a preliminary investigation report to ICAO within 30 days after the accident occurs.

The investigation team will conduct accident investigations in accordance with the requirements of the above-mentioned domestic regulations and international conventions.

(Produced by Liu Yinghan)

Responsible editor: [Li Yuxin]