On January 4, 1981, an anonymous note was delivered to a flight attendant during a flight between Berlin and Budapest, warning of a bomb placed in a red bag pack in the cargo hold. The bomb was set to detonate at an altitude of 120 meters, requiring ground personnel at Berlin-Tempelhof Airport to deactivate it. The flight attendant entered the cargo hold through a hatch and failed to locate the red bag pack. As a precautionary measure, the crew diverted to Poprad Airport, which was at an elevation of 718 meters, and subsequently found no explosive device.On January 4, 1981, an anonymous note was delivered to a flight attendant during a flight between Berlin and Budapest, warning of a bomb placed in a red bag pack in the cargo hold. The bomb was set to detonate at an altitude of 120 meters, requiring ground personnel at Berlin-Tempelhof Airport to deactivate it. The flight attendant entered the cargo hold through a hatch and failed to locate the red bag pack. As a precautionary measure, the crew diverted to Poprad Airport, which was at an elevation of 718 meters, and subsequently found no explosive device.