Installed aileron jig on left aileron and wing. Aligned left flap and hand-bent F-872CPP-L left flap fairing to correct contour to fit fuselage. Match-drilled forward rivet holes from inside fuselage with angle drill. Mis-drilled one, but edge distance from correct location is ok; will plug hole with blank rivet. Refined fit before drilling aft rivet holes and clecoing in place.