A right rudder trim activation of about 2,0 units, is being observed. Although logged mechanics could not find the reason....An air test,indicated that when AP is set to OFF, and manual flight with "dead stick" is achieved, aircraft flies level and straight..When rudder trim is zeroed , left bank of 5 degrees, plus a right slip observed...Engineer on board, through ACMS informed me that the problem is due to right high speed aileron drop of approx. 1 degree.....Would like to be informed if anyone of you, experienced something identical with this type of aircraft. Thks!
