As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ON CLIMB OUT OF HALIFAX AT FL250 RIGHT HAND AILERON INDICATED PLUS 1 DEGREE AND JAMMED, CONTROL WHEEL STIFF TO OPERATE. AUTOPILOT TRIM MESSAGE, AUTOPILOT DISCONNECTED. ON DESCENT AILERON RETURNED TO NORMAL. LUBRICATED ALL ACCESSIBLE PIVOT POINTS AT POWER CONTROL UNIT AND WHEEL WELL.SYSTEM OPERATION CHECKED NORMAL.