On August 24, 1986, a PZL-Mielec AN-2 (registration CCCP-91748) operated by Aeroflot - Russian International Airlines was involved in an aviation accident near Keperveyem, Russia in flight. No fatalities were reported. Investigators recorded the probable cause as: The flight crew failed to maintain the minimum required altitude during 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.
An aircraft crashed in the vicinity of Keperveyem following a failure by the flight crew to maintain the required minimum altitude.
What happened
An aviation accident occurred in the area surrounding Keperveyem when an aircraft impacted the ground. During the flight, the crew did not adhere to the established minimum altitude requirements for the airspace they were traversing. This deviation from prescribed altitude protocols resulted in the loss of the aircraft.
Findings
Investigations into the event determined that the primary factor leading to the crash was the failure of the crew to follow the minimum prescribed altitude. The flight was unable to maintain the necessary clearance above the terrain, which directly contributed to the impact.
Probable cause
The flight crew failed to maintain the minimum required altitude during the flight.
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