It was indeed - the only 747-300 to be fatally crashed. Although it was a sub that night, for an Airbus A300-600R, which was the usual hardware on the route to GUM. In fact in the transcript you will see ATC queried the type with the pilot, cos they were expecting an Airbus. Awful accident, the most avoidable crash that could be imagined, before AF447.
fly Saha Air 707s daily from Tehran's downtown Mehrabad to Mashhad, Kish Island and Ahwaz