I installed all of the nutplates for the flap and aileron hinge brackets. The gussets on the top and bottom of the flap and aileron are only temporarily pop riveted in place from the factory. That's because they have to be removed when fitting the flap and aileron. With the fitting done I went back and permanently riveted the gussets in place. One thing I learned that I will have to remember on the next wing. The nutplates interfere with the rivet squeezer so the gussets should be riveted in place before the nutplates are installed.
