No fatalities

Aircraft crash near Ugohan River (CCCP-32103)

Ugohan River, RussiaFlight

On September 11, 1985, a PZL-Mielec AN-2 (registration CCCP-32103) operated by Aeroflot - Russian International Airlines was involved in an aviation accident near Ugohan River, Russia in flight. No fatalities were reported. Investigators recorded the probable cause as: The crew failed to adhere to established minimum safe altitude requirements during the cruise phase. 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 2026-06-11Data APIEditorial standards

An aircraft crashed into a hillside in the Khabarovsk krai region while flying at an inadequate altitude.

What happened

During a flight south of the Khabarovsk krai, an unidentified aircraft impacted a hill in the vicinity of the Ugohan River. The incident occurred while the aircraft was in the cruise phase of its flight. At the time of the collision, the plane was operating at an altitude that was insufficient for the terrain being traversed.

Following the impact, the status of the occupants remained unconfirmed, with the fate of the crew unknown. No specific aircraft registration or model was provided in the initial reports regarding this occurrence.

Findings

Investigations into the crash determined that the primary factor involved was the failure of the crew to maintain the minimum safe altitude required for the flight path.

Probable cause

The crew failed to adhere to established minimum safe altitude requirements during the cruise phase.