As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - FLT 9548 - AFTER TAKEOFF FROM TUL, LANDING GEAR HANDLE WOULD NOT MOVE TO UP POSITION. USED OVERRIDE TRIGGER TO RAISE AND LOWER GEAR. LANDED DFW WITHOUT INCIDENT. REPLACED LANDING GEAR ACCESSORY UNIT. SYSTEM GROUND CHECK NORMAL OPERATION. (M)