Accident Summary
The aircraft departed from Minsk Airport at 1245LT, en route to Brest. While cruising at 9,000 feet, the crew observed an increase in oil temperature on the right engine and a drop in temperature of the second breech. The captain decided to shut down the right engine, feather its propeller, and continue the flight to Brest.
Approach and Landing
At 1405LT, the captain informed air traffic control of the situation and began a descent to Brest Airport in marginal weather conditions. During the final approach, at an altitude of 40 meters, the landing gear and flaps were lowered. The captain received a go-around instruction but continued the approach for an unknown reason. The right main landing gear touched down 390 meters past the runway threshold, followed by the left main gear 73 meters further. After traveling 930 meters, the aircraft overran the runway, collided with an ILS antenna, and came to rest in flames.
Injuries and Damage
All 21 passengers sustained injuries, and five crew members were seriously wounded. The board mechanic died from his injuries five hours later. The aircraft was destroyed.
Probable Cause
The official investigation determined that the right engine had to be shut down in flight due to failure of the second cylinder caused by a manufacturing defect. Additionally, poor techniques on the part of the captain led to an incorrect approach configuration on one engine and a late completion of the third turn on final. Contributing factors included marginal weather conditions, a wet runway surface, and limited visibility.