 Compared to the Potez 25, of which over 2000 were ordered, production of the Potez 39 series was on a small scale, 100 Potez 390 aircraft being built for France and 12 Potez 391 variants, powered by a Lorraine-Dietrich 12H engine of 700 bhp, for the Peruvian Air Force.A number of prototype and development aircraft, including a floatplane, were tested but no further orders were received.First production aircraft were delivered in 1934 and the Potez 39 began to be replaced by ANF Les Mureaux 117, Amiot 143 and Potez 540 aircraft began in 1936.