 On 8 June 1940 M.F.11s F.310, F.336 and F.346 landed on Salmijärvi Lake in Petsamo, immediately being put in internment by Finnish authorities.The three Norwegian aircraft were first stored and repaired at both the Finnish Polytechnic School and the Finnish State Aircraft Factory before being handed over to the Lentolaivue 15 in August 1941, with the designation numbers NK-171—173.