Riveted HS-412PP and -413PP brackets to rear spar. Bolted HS-411P to rear spar and torqued to 24 in-lbs. Riveted HS-710 and -714 stiffeners to front spar using pneumatic squeezer. Riveted HS-404's and -405's to front spar assembly using gun and bucking bar. Pretty good job on last considering one hole in each side had been stretched from the awkward drilling.