What was found
AFTER TAKEOFF, WHEN THE FLIGHT CREW RETRACTED THE LANDING GEAR, THE CONTROL HANDLE WOULD NOT POSITION TO THE UP POSITION. THE CREW RETURNED THE GEAR HANDLE TO THE DOWN POSITION, RECEIVING THREE DOWN AND LOCK INDICATIONS. A SECOND ATTEMPT TO RETRACT THE GEAR WAS UNSUCCESSFUL AND THE AIRCRAFT RETURNED TO DFW. MAINTENANCE INSPECTED THE AIRCRAFT, FINDING THE LANDING GEAR ANTI-RETRACT LATCH MECHANISM MISRIGGED. MAINTENANCE RIGGED THE SYSTEM IN ACCORDANCE WITH THE DOUGLAS MAINTENANCE MANUAL AND THE AIRCRAFT WAS RETURNED TO SERVICE.