As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED STIFF AILERONS IN FLIGHT. MECHANICS FOUND LINE FOR WATER SYSTEM DISCONNECTED WHICH CAUSED WATER TO DRAIN INTO WHEEL WELLS FORMING ICE ON AILERON PULLEY CLUSTERS. REMOVED ICE FROM PULLEYS. INSPECTED CABLES AND PERFOMRED OPS CHECK. RETURNED A/C TO SERVICE.