On 3 September of the same year, it was delivered to the airline "Aeroflot" (Georgian UGA, Sukhumi Joint Aviation Detachment).

On 18 April of the same year, it was delivered to the customer — the MGA USSR, which assigned it to the Sukhumi Joint Aviation Detachment of the Georgian UGA.

3 to the holding point, at 18:05:35, Flight 974 was cleared to enter the takeoff position (at the beginning of the runway) on a magnetic heading of 297°.

However, at 18:07:24, the captain of flight G-73 independently switched to the circuit controller and requested clearance for takeoff on a course of 117°, in the opposite direction.

3, now simply dismissed flight G-73 and did not take any measures to prevent these unauthorized taxiing actions according to the non-existent scheme.

Due to engine noise from the departing Flight 974, the start controller did not hear the report properly and at 18:08:30 asked for clarification: "Which aircraft?"

The start controller could not see the actual position of both aircraft from his workstation and, without understanding the situation, in violation of air traffic control requirements, instructed Flight G-73 to take up the takeoff position and prepare for takeoff on a course of 297°: "191st, 297 take up, wind 270 four."

The L-410 crew also saw the departing Tu-134, so they immediately set the engines to takeoff mode and attempted to move to the right, but the aircraft did not have enough time to avoid each other.

Earlier that day, while operating a local flight from Sukhumi Airport, he taxied onto the runway via the same route.