After the incident, the East China Regional Administration of Civil Aviation set up an accident investigation team, and carried out on-site investigation, company personnel transcripts, witness interviews, video surveillance, meteorological information collection, maritime satellite data collection, flight data decoding and analysis, etc.
The East China Regional Administration of Civil Aviation set up an accident investigation team to investigate. The China Civil Aviation Safety Information System sponsored by the Civil Aviation Administration of China released the investigation report of this accident. The investigation team found that the aircraft flew under icing conditions for a long time during the artificial precipitation enhancement operation.
The wing and propeller were severely frozen, and the crew failed to effectively control the icing risk of the aircraft. Then the aircraft stalled and entered the spiral, and finally fell to the ground and caught fire. This incident constitutes a major general aviation accident caused by the crew.
During the disposal of the stall spiral before the crash, the co-pilot was busy communicating, and the captain did not stop it. In the process of dealing with special circumstances, the unit has "almost no communication" and cannot break the single channel of concern that individuals may have.
From 20 18 to the day of the incident, Beidahuang navigation still lacked the necessary data such as the basic empty weight and balance sheet of the aircraft, especially the accurate data such as the weight and center of gravity of the aircraft after the equipment was installed. Pilots carry out load balancing and performance calculation based on inaccurate data, which has operational risks.
The main leaders of the Jiangxi Provincial Party Committee and the provincial government immediately gave instructions to do a good job in search and rescue. The main leaders of the emergency, meteorological and civil aviation supervision departments in Jiangxi Province quickly rushed to the scene. Ji 'an city and county party committees and governments immediately launched emergency plans and organized emergency, fire and public security forces to quickly carry out rescue.
In addition to the airlines involved, Jiangxi Branch of East China Air Traffic Control Bureau was also required to train Nanchang regional controllers on aircraft special circumstances to improve the control service level of controllers in handling special circumstances.