Flight Crew and Arrival
On 28 July 2022 at 09:25, the pilot-in-command (PIC) and an observer arrived at Sangar airport. The PIC had been based in Sangar since 6 June 2022, when he flew the Cessna F172P RA-67332 from Moscow. He had been conducting regular flights for forest aviation work in the Sakha Republic (Yakutia) under a contract.
Aircraft Preparation
The PIC personally prepared the aircraft for the flight. On 27 July 2022, approximately 150 liters of Avgas 100LL aviation gasoline had been added to the fuel tanks. Additionally, the engine oil system was topped up with about 300 grams of AeroShell motor oil. No other special fluids were added.
Flight Plan
According to the flight request submitted by the Yakutsk Aviation Forest Protection Base, the flight was scheduled on 28 July 2022 along the LPM No 1 route from Sangar airport. The flight plan (signed on 28 July 2022) specified: the route as Sangar–Sangar, the alternate aerodrome as Vilyuysk, altitude not below the minimum safe altitude, the purpose as forest aviation work, and the crew as authorized for VFR day flights with 400 m visibility, 4000 m cloud base, and 12 km visibility. The crew was also trained for forest aviation and off-route flights with the right to select landing sites from the air under VFR day conditions.