What was found
(CAN) CREW REPORTED AIRCRAFT WAS FLYING ASYMMETRICALLY IN ALL PHASES OF FLIGHT AND UNABLE TO TRIM TO A CO-ORDINATED STATE IN EITHER AUTO OR MANUAL. IN CRUISE AT FL310 CONTROL WHEEL DISPLACED 2 UNITS TO THE RIGHT, RUDDER TRIM AT 2 UNITS TO THE RIGHT WHILE THE PFD INDICATED LEFT RUDDER REQUIRED. UPON INSPECTION, FOUND THE R/H INBOARD AFT FLAP FULLY EXTENDED WITH FLAPS SELECTED TO THE FLAPS UP POSITION. DURING FURTHER INVESTIGATION R/H INBOARD AFT FLAP CONTROL LINKAGE WAS FOUND SHEARED AT #6 AFT FLAP. NO FURTHER DAMAGED FOUND. INBOARD AFT FLAP CONTROL LINKAGE WAS REPLACED IAW AMM 27-51-12 AND OPS CHECKED SERVICEABLE.