Arrival and Medical Examination
On April 17, 2021, at 10:00, the pilot in command (PIC) arrived at the Severskaya landing site in the Seversky District of Krasnodar Krai. The PIC did not undergo a medical examination, which is permitted under Federal Aviation Regulations (FAP-128) Section 8.10.1 when performing flights from aerodromes or landing sites where no medical personnel are available. According to the aircraft owner, the PIC did not complain about his health, and the owner reported that the PIC's health was good with no complaints.
Aircraft Preflight Inspection and Fueling
The preflight inspection of the aircraft was conducted by a qualified aviation technician from LLC AP "Virazh". The aircraft was fueled with 180 liters of TS-1 aviation kerosene. No other technical fluids were added to the aircraft. The preflight inspection was not documented.
Herbicide and Water Loading
The aircraft owner filled the water for the working herbicide solution, while the customer's representative added the herbicide concentrate. According to the owner's testimony, the water was loaded in an amount specified by the PIC using a measuring tube; the exact quantity was not recalled. The herbicide was poured from two 5-liter plastic canisters, totaling 10 liters of concentrate per flight.
Field Inspection
As stated by an employee of the farm (owner of the irrigated agricultural land), the PIC did not conduct an inspection of the fields designated for agricultural operations or of obstacles in the flight area, due to having performed these flights repeatedly on prior occasions.