What was found
AFTER FLIGHT IN RAIN, SUBSEQUENT CLIMB ABOVE FREEZING LEVEL, AND DESCENT FOR LANDING: DURING VECTOR FOR ILS FINAL, AUTOPILOT WAS MANUALLY DISCONNECTED BY (PIC). AIRCRAFT IMMEDIATELY BANKED LEFT, NOTED FULL LEFT AILERON TRIM DEPICTED ON TRIM INDICATOR. AILERONS DIFFICULT TO MOVE TO FORCE WINGS LEVEL. AFTER WORKING AILERONS, THEY RETURNED TO NORMAL CONTROL. LANDED NORMALLY. ICE FORMED IN GAP BETWEEN WING AND AILERON. INSPECTED GAP AND GAP SEAL AFTER LANDING NO ICE NOTED. (M)