77 fatalities

1977-02-15: Ilyushin II-18 (CCCP-75520) — Aeroflot - Russian International Airlines — Mineralnye Vody, Russia

Mineralnye Vody, RussiaLanding (descent or approach)

On February 15, 1977, an Ilyushin II-18 (registration CCCP-75520) operated by Aeroflot - Russian International Airlines was involved in an aviation accident near Mineralnye Vody, Russia during landing or approach. 77 people were killed. Investigators recorded the probable cause as: Failure of the crew to adopt a proper go-around configuration after a missed approach. The loss of control during initial climb was the result of a premature raise of the flaps, which caused the aircraft to reach a critical angle of attack and to stall. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A); 8 related events involving the same aircraft type or operator are linked below.

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Primary reportUpdated 1781228333Data APIEditorial standards

During a night approach in poor weather, a go-around was initiated. The crew prematurely raised flaps, causing a tail stall and loss of control. The aircraft crashed, resulting in 77 fatalities and 21 injuries.

Approach and Go-Around

On final approach to Mineralnye Vody Airport at night, the crew encountered poor weather conditions. While flying at a speed of 290 km/h, flaps were deployed at an angle of 30°, causing the airspeed to drop to 260 km/h. At a distance of 1,500 metres from the runway threshold, the captain decided to initiate a go-around as he was unable to establish visual contact with the runway.

Loss of Control

During the initial climb, at an altitude of about 90 metres, the airplane entered a right turn, then rolled to the right at an angle of 15–30° and adopted a critical angle of attack of 15–18°. A tail stall occurred, and the airplane crashed in flames 2 km south of the airport.

Occupants and Damage

One crew member and 76 passengers were killed, while 21 other occupants were injured. The aircraft was destroyed.

Probable Cause

The official findings stated that the probable cause was the failure of the crew to adopt a proper go-around configuration after a missed approach. The loss of control during initial climb was the result of a premature raise of the flaps, which caused the aircraft to reach a critical angle of attack and to stall.