Also in the early 1960s, the carrier provided some initial aviation support to the Ethiopia-United States Mapping Mission in its operation to acquire topographic maps of Ethiopia. The firm changed from a corporation to a share company in 1965, and changed its name from Ethiopian Air Lines to "Ethiopian Airlines". By 1966, the contractual relationship with TWA was adjusted to reflect the transfer of management with the appointment of an Ethiopian deputy general manager. Two Boeing 720s were in operation and a Boeing 707-320C was due to be phased in by , when the carrier ordered a second -320C.