[3] According to the schedule, the departure on the route Ulan-Ude-Nizhneangarsk was planned for 04:50 UTC on June 26, 2019, but due to weather conditions at Nizhneangarsk Airport (which were worse than the minimum), the departure of flight 200 was initially postponed every hour, and then postponed to 00:30 UTC on June 27, 2019.

At 01:03 UTC, flight 200 departed from Ulan-Ude; the PIC (pilot in command) performed takeoff.

The air traffic controller cleared the flight to approach runway 23 (magnetic landing heading 225°).

[4] After landing, the airplane unexpectedly veered to the right, left the runway, ran along the ground, broke through the airport fence, crashed into a sewage treatment plant building and stopped.

[5] According to the interim report it was determined that while descending to 10,000 feet (3,000 m) approximately 34 nautical miles (63 km) from the airport, the left engine failed due to reduced oil pressure.

The first officer was unable to save the captain and flight engineer, who were trapped and showed no signs of life.

[6] At the same time, the IAC confirmed that because the captain of the crew became ill before the flight, the airline replaced him with an inspector pilot.

The IAC also recommended that airlines conduct a one-time check of the technical condition and operability of the brake systems in accordance with the maintenance regulations on An-24 and An-26 aircraft.

The committee also recommended that flight crews additionally study the process of approaching and landing with one failed engine on An-24 aircraft.