Riveted the reinforcement fork and the doubler plates to the rear spar. Riveted the spacers to the tiedown bar and then bolted to the main spar (all torqued up correctly to approx 28 in-lb). Got as far as riveting the fuel tank attach nutplates to the bottom of the main spar, but will finish off the nutplates on the top of the spar tomorrow. Jackie managed to deburr another main rib: she says its boring, but hey, what are wives for, eh? :-) (don't tell her I said that!!)