Clecoed the trim tab spar and hinge half in place and drilled the hinge to #40. Disassembled and de-burred. Used a backer block to countersink the trim tab spar for the dimples in the skin. Riveted the control horn to the skin. Neighbor Nathan Boyd helped me pull the pop-rivet that I had to use in the last hole - no room to buck a solid rivet.
