According to other sources, in March 1941, ahead of the tense of international situation around Yugoslavia, MMS-3 aircraft took over the Royal Yugoslav Air Force (JKRV) and placed him in the 603rd Auxiliary Squadron, where it was to be used as a liaison aircraft, deployment and courier needs.
Prema drugim izvorima, u martu 1941, uoči napete međunarodne situacije oko Jugoslavije, avion MMS-3 je preuzelo Jugoslovensko kraljevsko ratno vazduhoplovstvo (JKRV) i rasporedilo ga u 603-ću Pomoćnu Eskadrilu, gde mu je zadatak bio da se koristi kao avion za vezu, razmeštanje i za kurirske potrebe.