As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AFTER TAKEOFF THE CREW FELT THAT THERE WAS RESISTANCE IN THE ROLL CONTROLS, ESPECIALLY IN RIGHT TURNS. THE AIRCRAFT RETURNED TO THE DEPARTURE AIRPORT AND LANDED UNEVENTFULLY. MAINTENANCE CARRIED OUT A DETAILED INSPECTION OF THE ENTIRE ROLL CONTROL SYSTEM, AND FOUND TWO CABLES WITH LOW TENSION. THE CABLES WERE RE-TENSIONED AND A TEST FLIGHT WAS CARRIED OUT WITH NO FURTHER ISSUES NOTED.