What was found
RUDDER AND AILERON TRIM EXCESSIVE WITH AILERON DEFLECTED. SUSPECT LEFT INBD AILERON STUCK IN UP POSITION, AS IND ON EICAS FLT CONT, IS DEFLECTED APPX HALF UP AND NOT RESPONDING TO INPUT. RUDDER AND AIL TRIM IS EXCESSIVE. AILERON FOR 6 HRS WAS ABOUT HALF DEFLECTED AND THEN WORKED ITS WAY TO ABOUT 1-4 DEFLECTION AS SEEN IN YOKE AND TRIM USED. FOUND LT INBOARD AIL, BOTH LT & CNTR SYS PCA'S HAVE QUICK DROOP & ARE BYPASSING (BOTH PCA'S MANUAL MANIPULATION WITH SYS PRESS APPLIED). REPLACED CTR SYS PCA. REPLACED LT INBOARD & OUTBOARD AILERON LEFT SYSTEM PCA. REPLACED RT NR 7 OVERRIDE SPOILER ACTUATOR & LT SPOILER OVERRIDE ACTUATOR.