Pop riveted map box together. Clecoed map box to instrument panel, then refit map box into right sub panel making sure had clearance to allow removal of instrument panel/map box unit. Fit support brackets to rear of right subpanel. Deburred and primered all parts prior to assembly. Fit map box hinge to map box and map box door. Cut holes for proper hinge alignment. CUt holes for map box camloc. Countersunk for map box instrument panel rivets and map box door rivets.Began assembly of forward deck. Riveted map box supports to right sub panel. Riveted seal support angles to outer and center sub panels. Riveted all forward channels to center sub panel and began riveting sub panels to the forward fuselage ribs. Clecoed in the vent support brackets and instrument panel brackets ready for riveting.