What was found
INSPECTION TYPE:N/A AIR TURNBACK. AIL DEF DISAGREE DISPLAYED. RIGHT AIL DEF REQUIRED TO MAINTAIN LEVEL FLIGHT. REMOVED AND REPLACED RT INBOARD AILERON DROOP ACTUATOR IAW MM 27-16-00-05, OPS CHECK NORMAL P/N ON ARH7054-517, S/N J0570, P/N OFF 4083935-901, S/N G00 95.