The UM AirlinesYakovlev Yak-42 was a chartered aircraft being used to transport Spanish troops after a four-month peacekeeping tour of Afghanistan. The final destination was Zaragoza Airport but the aircraft attempted to stopover at Trabzon Airport in Turkey, in order to refuel. The aircraft crashed into the side of a mountain near the town of Maçka, 15 miles (24 km) from Trabzon, on its third attempt to land in dense fog. The pilot had stated that he could not see the runway; visibility was less than 10 metres (33 ft).
All crew and passengers were killed in the impact. The troops on board comprised 41 members of the army and 21 members of the air force. The aircraft was also carrying ammunition; explosions after the crash distributed the wreckage over a large area.