What was found
(CAN) THE CREW OBSERVED BINDING IN THE AILERON SYSTEM WHILE EXECUTING A RT TURN DURING DEPARTURE. THE AIRCRAFT RETURNED TO POINT OF DEPARTURE WITHOUT FURTHER PROBLEM. POST FLIGHT INSPECTION DETECTED A LOCATION IN THE SYSTEM WHICH EXHIBITED AN INCREASED RESISTANCE TO TRAVEL WHEN CYCLING THE SYSTEM BUT THERE WAS NO RESTRICTION TO FULL MOVEMENT. MAINTENANCE FOUND A SPLIT TEFLON WASHER FOULING THE BEARING AT THE SWING LINK BETWEEN RIBS 8 AND 9. THE WASHER WAS REPLACED AND THE AIRCRAFT WAS RETURNED TO SERVICE WITHOUT FURTHER PROBLEM. (TC NR 20070201005)