As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - FLT 0636 - AFTER TAKEOFF HOU, UNABLE TO RAISE LANDING GEAR HANDLE. DEPRESSED LANDING GEAR OVERRIDE TRIGGER AND LANDING GEAR HANDLE MOVED TO UP POSITION AND LANDING GEAR RETRACTED. AIRCRAFT PROCEEDED TO DFW, LANDING WITHOUT INCIDENT. REPLACED LANDING GEAR ACCESSORY UNIT. SYSTEM GROUND CHECKED NORMAL OPERATION. (W)