 After his tour in Washington D.C. concluded in December 1929, Maitland served at Kelly Field, Texas, as a flight instructor in the Advanced Flying School.He was promoted to captain in 1932.Maitland served in various positions in the Training Command at Kelly, including senior instructor in Attack, to September 1934, when he entered the Air Corps Tactical School at Maxwell Field as a student in the comprehensive 845-hour, 36-week course.