Spent time over the last three days preparing flap and aileron hinge brackets for installation. Set up aileron brackets for both the left wings, counter sunk holes per plan and primed. Set up flap hinge brackets along with W925-Bs and Cs for left wing. Match drilled hinge brackets to ribs and W 925 Cs and Bs to ribs and rear spar. Primed all parts in preparation for riveting to left rear spar.