On July 18 1970, an Antonov An-22 of Soviet Air Forces crashed in the Atlantic Ocean between Iceland and Greenland, while on its way to Halifax, Canada.

[1] Following the 1970 Ancash earthquake, which killed tens of thousands of people and destroyed many cities in Peru, the 81st Military Transport Aviation Regiment of the Soviet Air Forces participated in the transport of humanitarian aid to that country.

Due to the limited range and heavy cargo of food and seven passengers, the flight plan called for the aircraft to make several stops while on its way to Peru.

Soon after a search and rescue operation began together with NATO aircraft and a Soviet Antonov An-12.

The Soviet Ministry of Aviation Production made a hypothesis that an uncontrolled decompression had occurred, the cause of which has never been fully established.