TWA accepted the aircraft on 15 September 1933 with a few modifications (mainly increasing seating to 14 passengers and adding more powerful engines) and subsequently ordered 20 examples of the developed production model which was named the Douglas DC-2.
TWA tog imod flyet den 15. september 1933 med enkelte ændringer (primært forøgelse af antallet af siddepladser til 14 og installation af endnu kraftigere motorer) og bestilte 20 eksemplarer af den udviklede produktionsmodel, Douglas DC-2.