What was found
(CAN) THE AIRCRAFT DEPARTED AIRPORT AND REPORTED AILERON CONTROLS STIFF. THE AIRCRAFT RETURNED TO WITHOUT FURTHER INCIDENT. UPON INVESTIGATION IT WAS FOUND THAT AN AILERON CABLE IN THE LT WING WAS DISLODGED FROM THE PULLEY. FURTHER INVESTIGATION SHOWED THE CABLE GUARD WAS MISSING. THE CABLE WAS INSPECTED AND REPOSITIONED ON THE PULLEY. WHEN CABLE TENSION WAS VERIFIED IT WAS FOUND BELOW LIMITS. THE ENTIRE AILERON CABLE SYSTEM WAS INSPECTED, RIGGED AND TENSIONED. NO OTHER FAULT S WERE FOUND AND THE AIRCRAFT WAS RETURNED TO SERVICE.