As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THE FLIGHT CREW REPORTED THAT THE ROLL CONTROL WAS STIFF IN FLIGHT FOR BOTH LT AND RT TURNS. MAINTENANCE INVESTIGATION FOUND A SEIZED PULLEY IN THE AILERON CIRCUIT AT THE LT WING ROOT. THE PULLEY WAS REPLACED AND SYSTEM TESTED SERVICEABLE.