No fatalities

Aircraft crash near Ulan Bator (CCCP-07278)

Ulan Bator, MongoliaFlight

On September 29, 1978, a PZL-Mielec AN-2 (registration CCCP-07278) operated by Aeroflot - Russian International Airlines was involved in an aviation accident near Ulan Bator, Mongolia in flight. No fatalities were reported. Investigators recorded the probable cause as: The crew did not adhere to the minimum altitude requirements established for the flight. 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 2026-06-14Data APIEditorial standards

An unidentified aircraft crashed in the vicinity of Ulan Bator under circumstances that remain unconfirmed.

What happened

An aviation accident occurred in an area near Ulan Bator, involving an aircraft whose specific details have not been publicly disclosed. The incident resulted in no fatalities or injuries to any persons on board.

During the event, the aircraft transitioned into a crash state, though the precise sequence of events leading up to the impact has not been fully detailed in available reports. The flight phase at the time of the accident remains unconfirmed due to the lack of specific telemetry or operational data provided in the initial report.

Findings

Official investigations into the event have identified a critical deviation from standard operating procedures. It was determined that the crew failed to maintain the minimum required altitude during the flight. This failure to adhere to prescribed altitude limits is considered the primary factor in the accident.

Probable cause

The crew did not adhere to the minimum altitude requirements established for the flight.

Frequently asked questions

What happened in the 29 Sept 1978 PZL-Mielec AN-2 accident near Ulan Bator, Mongolia?

An unidentified aircraft crashed in the vicinity of Ulan Bator under circumstances that remain unconfirmed.

Were there any fatalities in the 29 Sept 1978 PZL-Mielec AN-2 accident?

No fatalities were recorded in this accident.

What aircraft was involved and where did it happen?

The accident on 29 Sept 1978 involved a PZL-Mielec AN-2, registration CCCP-07278, operated by Aeroflot - Russian International Airlines, at Ulan Bator, Mongolia.

What was the probable cause of the accident?

The crew did not adhere to the minimum altitude requirements established for the flight.