The main difference between the two control paths are - left path or Captain's side is the main or primary control path due to system design and lost motion device at bottom of the F/O column before inputs to right control path. F/O inputs cross over through Captain's; or primary path, under normal operation. Both paths incorporate roll monitor bungees. Also a bungee between inboard ailerons. No monitor in aft interconnect bungee between inboard ailerons. Conventional manual trim wheel on aft ENP of center console through cables to trim actuator in left primary or master aileron path trims feel forces, as in stabilizer and rudder trim systems.
Now continuing with primary path to left inboard aileron master servo we see that three hydraulic systems A, B & C power the aileron actuators controlled through the servo by pilot inputs. From the master inboard aileron one path goes to the spoilers input and on to the outboard aileron directly off inboard aileron movement to the outboard aileron servo. The outboard aileron is powered by two hydraulic systems B & C controlled by the servo.
Another control path from the left inboard, or master aileron movement crosses through the fuselage and aft interconnect bungee to the right inboard aileron servo which controls the three right inboard aileron actuators powered by hydraulic systems B, C & D.
From the right inboard aileron the primary control path continues directly from inboard aileron to the right wing spoilers and to the outboard aileron servo which controls the aileron's two actuators power by Hydraulic Systems B & D. Note again the hydraulic systems do not cross over as they power the ailerons.
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