Background
On 27 August 2019, an Antonov An-2 aircraft, registered RA-40389, was being used for aerial chemical work (AHR) under an oral agreement between the aircraft owner and the head of a peasant farm (KFH). The mission involved spraying sunflower fields with a desiccant of the Reglon type. The aircraft's permanent base was at a landing site near Drachenka, Medvensky District, Kursk Region. On that day, the pilot-in-command (PIC) flew the aircraft to a landing site near Selektsionny, Lgovsky District, Kursk Region, which had been inspected from the ground. After arrival, six AHR flights were performed.
Events of 28 August 2019
On 28 August 2019, the PIC, who had rested overnight at a hotel in Lgov, arrived at the landing site at 06:40 local time. He personally conducted operational maintenance of the aircraft, which included a visual inspection and refueling with 200 liters of automotive gasoline (grade Ai-95). Workers from the KFH refilled the chemical tank. The PIC did not undergo a pre-flight medical examination, a practice permitted under the applicable regulations (FAP-128) when no medical personnel is available at the landing site. The PIC assumed responsibility for flight fitness.
The first takeoff for agricultural work occurred at 07:29. A total of eight AHR flights were planned for the day. Before each flight, the aircraft was loaded with 1,200 liters of chemical liquid. Before the seventh flight, the PIC added 200 liters of fuel. At 13:18:20 local time, the PIC departed for the eighth and final flight.
Accident Sequence
During the eighth flight, the aircraft collided with the crowns of trees forming a forest belt. The trees were reported to be 12 to 15 meters in height. Following the impact with the trees, the aircraft struck the ground. No fire occurred.
Aftermath
The aircraft sustained substantial damage in the accident. The PIC was not injured, and there were no casualties on the ground. The accident investigation did not specify a probable cause in the provided source.