Introduction
On 28 June 2025, an experimental aircraft (EEC) C-18T.2, registration RA-0856G, was involved in an accident. The aircraft was not equipped with onboard flight data recorders, so flight history information was derived from the owner's statements, witness accounts, and examination of the accident site and aircraft components.
Flight History
The pilot-in-command (PIC) performed three flights on the day of the accident, all within Class G airspace. During these flights, the PIC and various passengers were on board. The PIC decided to conduct the flights without informing the aircraft owner and did not file any notifications with air traffic control (ATC) authorities, as required by Russian airspace regulations for Class G operations (FAP IVP RF paragraphs 124 and 147).
Pre-Flight Preparations
Before the flights on 28 June 2025, aircraft preparation, engine start and run-up, and taxiing from the parking spot to a temporary parking area were carried out by individuals who did not hold aviation personnel certificates. The commission investigating the accident was unable to determine the completeness and correctness of the pre-flight preparation or the exact amount of fuel on board due to a ground fire at the accident site. According to the owner, all aircraft operation and maintenance documentation was on board at the time of the accident.
Weather and Medical Considerations
The PIC did not request meteorological information from the official weather service. It is most likely that the decision to fly was based on the actual weather conditions, which were within visual meteorological conditions (VMC). A pre-flight medical examination of the pilot was not conducted.
Accident Scene
The accident site was examined, and a ground fire occurred, which hindered the investigation. The aircraft sustained damage; specific details are not available from the source.