On 23 December 1984, at 2:08 p.m.
KRAT (UTC/GMT+7 hours), The weather was clear with good visibility. The aircraft made a turn and climbed to . Ground communication cleared the aircraft for a climb to . Two minutes and one second into the flight, at a speed of and an altitude of , the No. 3 (starboard) engine failed and caught fire. This was due to a
metallurgical and
manufacturing defect in the first stage low pressure compressor disk. The flight engineer mistakenly shut down the No. 2 (center) engine; ten seconds later, he realized his error and attempted to restart it. The crew then began to turn the aircraft around for an emergency landing. The No. 3 engine was shut off and the crew unsuccessfully fired
extinguishing bottles. Without warning, the No. 2 engine began turning at takeoff speed and could not be controlled by the engine power levers. The crew was able to shut it off, but the fuel valve remained open. By that time, the fire from the No. 3 engine had spread to the
pylon and the
auxiliary power unit in the rear compartment and continued to spread to the No. 2 engine. The fire damaged the aircraft's electrical system, causing the
voltage to drop and the
hydraulics to fail. When Flight 3519 passed the outer marker of the runway of Krasnoyarsk Airport, it was flying at a speed of at an altitude of , and was descending at . Due to the extensive fire damage that left the aircraft with only one functional engine, the crew was unable to control the plane. It banked to the right and crashed into the runway at 2:15 pm at a 50-degree angle. The time between the start of the fire and the crash was four minutes and 30 seconds. The only survivor was one passenger, a 27-year-old man, who was badly injured. The other 110 people aboard the aircraft were killed. The aircraft was destroyed and partially burned in the crash. ==Technical data and statistics==