Dual engine failure during initial climb near Mys-Kamennyy Airport

8 fatalities • Mys-Kamennyy, Russia • Landing (descent or approach)

An aircraft crashed into an icy swamp short of the runway after experiencing a dual engine failure during its departure from Mys-Kamennyy Airport.

What happened

Following a cargo delivery for an oil services company, an aircraft departed Mys-Kamenlyy Airport at 19:11 local time amidst snowy conditions that had limited visibility to approximately 1.8 km. During the initial climb phase, while the crew was transitioning to a requested altitude of 6,600 meters, the captain declared an emergency due to the simultaneous failure of both left engines.

The crew attempted to execute a return maneuver to Mys-Kamennyy Airport. As the aircraft approached the airfield, the pilot reported seeing the runway and deployed the landing gear. While descending to 250 meters at a distance of eight kilometers from the field, the aircraft continued to lose altitude. At a distance of five kilometers, the crew was instructed to perform a right turn as the descent became uncontrolled. The aircraft type impacted an icy swamp approximately 2.2 km before reaching the runway, landing 450 meters left of the extended centerline at a speed of 220 km/h. The impact resulted in the destruction of the plane and eight fatalities.

Findings

Official investigations could not pinpoint the precise reason for the dual engine failure. However, investigators did not dismiss the possibility that ice crystals or pellets may have obstructed a fuel filter or fuel line, or that a valve malfunction occurred. Adverse weather conditions were identified as a contributing factor to the accident.

Probable cause

The exact cause of the simultaneous left engine failures remains undetermined, though fuel system blockage by ice or mechanical valve failure are suspected possibilities.

Frequently asked questions

What happened in the 1970-10-01 Antonov AN-12 accident near Mys-Kamennyy, Russia?

An aircraft crashed into an icy swamp short of the runway after experiencing a dual engine failure during its departure from Mys-Kamennyy Airport.

Were there any fatalities in the 1970-10-01 Antonov AN-12 accident?

The accident was fatal, resulting in 8 fatalities.

What aircraft was involved and where did it happen?

The accident on 1970-10-01 involved a Antonov AN-12, registration CCCP-11031, operated by Aeroflot - Russian International Airlines, at Mys-Kamennyy, Russia.

What was the probable cause of the accident?

The exact cause of the simultaneous left engine failures remains undetermined, though fuel system blockage by ice or mechanical valve failure are suspected possibilities.

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