"Tingmissartoq" was to see action again in 1933 as a result of international interest in the development of commercial air transport. Pan American Airways, Imperial Airways, Deutsche Luft Hansa, KLM, and Air France collaborated on a study of international air routes. The assigned areas were Newfoundland to Europe via Greenland; Newfoundland via the great circle route to Ireland; Newfoundland southeast to the Azores and Lisbon; Miami, Bermuda, the Azores, and Lisbon; and across the South Atlantic from Brazil, to Cape Verde. Pan American was given the responsibility for the first of these, and sent Lindbergh, as the company's technical advisor, to survey the route. Accompanied once more by Anne, he took off from New York City on July 9 in the rebuilt craft. The purpose of the trip was to gain as much data as possible on the area to be covered.