What was found
STL - DURING APPROACH AIRCRAFT REQUIRED EXCESSIVE AILERON TRIM CHANGE WHEN POWER AND SPEED CHANGED, AND MORE POWER THAN NORMAL TO MAINTAIN PROPER SINK RATE. FOUND LEFT AILERON INBOARD HINGE EYEBOLT BEARING, MFG P/N DMD6-7E1-501, WORN. REPLACED HINGE EYEBOLT AND AILERON SYSTEM OPERATION CHECKED NORMAL. (M)