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32 fatalities

Controlled Flight into Terrain During Descent to Ölgii Airport (BNMAU-14102)

Mt Marz, MongoliaFlight

On April 23, 1993, an Antonov AN-26 (registration BNMAU-14102) operated by MIAT Mongolian Airlines - Mongolyn Irgeniy Agaaryn Teever was involved in an aviation accident near Mt Marz, Mongolia in flight. 32 people were killed. Investigators recorded the probable cause as: Controlled flight into terrain after the crew initiated the descent prematurely, causing the aircraft to descend below the minimum prescribed altitude. Poor visibility due to poor weather conditions was a contributing factor. 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)Source recordUpdated 2026-07-04Data APIEditorial standards

While descending to Ölgii Airport, the crew encountered poor weather conditions and the aircraft struck the slope of Mt Marz, disintegrating on impact. All 32 occupants were killed.

Accident Details

The accident occurred while the aircraft was descending to Ölgii Airport. The crew encountered poor weather conditions when the aircraft struck the slope of Mt Marz, located in the Hangayn Nuruu Mountain Range. The impact caused the aircraft to disintegrate. All 32 occupants on board were killed.

Probable Cause

According to the official investigation, the probable cause was controlled flight into terrain after the crew initiated the descent prematurely, causing the aircraft to descend below the minimum prescribed altitude. Poor visibility due to poor weather conditions was identified as a contributing factor.

Controlled flight into terrain

Related events

Same operator

Frequently asked questions

What happened in the 23 Apr 1993 Antonov AN-26 accident near Mt Marz, Mongolia?

While descending to Ölgii Airport, the crew encountered poor weather conditions and the aircraft struck the slope of Mt Marz, disintegrating on impact. All 32 occupants were killed.

Were there any fatalities in the 23 Apr 1993 Antonov AN-26 accident?

The accident was fatal, resulting in 32 fatalities.

What aircraft was involved and where did it happen?

The accident on 23 Apr 1993 involved an Antonov AN-26, registration BNMAU-14102, operated by MIAT Mongolian Airlines - Mongolyn Irgeniy Agaaryn Teever, at Mt Marz, Mongolia.

What was the probable cause of the accident?

Controlled flight into terrain after the crew initiated the descent prematurely, causing the aircraft to descend below the minimum prescribed altitude. Poor visibility due to poor weather conditions was a contributing factor.

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