 In August 1936, flying an PZL P.11a, he shot down a Soviet reconnaissance plane which had crossed into Polish airspace.He was officially reprimanded and unofficially congratulated by his superior officer and as "punishment" in October 1936 was transferred to an air force training school in Deblin where he was nicknamed "Cobra".During the Invasion of Poland in 1939, Urbanowicz was in an improvised Ulez Group, composed of flying instructors, flying obsolete PZL P.7a fighters and covering the Dęblin and Ułęż airfields.