Good progress today. The ProSeal was cured enough to take it back to the hangar without fear of a mess. I assembled the watchacallit on the left side of the firewall after riveting on the stiffener angles. The MS2108 nut is a pain in the ass, by the way.
Then I prepped up the lower corner side skins and riveted those on, including the cowling attach plates which have to be bent, then riveted on with nutplates installed. No problems there, either.
The problem came when it was done and I tried to fit it to the mid fuselage. The inboard "ribs" (I don't know the numbers) are blocked by the mid-fuselage skin from fitting on to their attach point... which would line the aft set of holes in the forward fuselage with the aft set in the mid fuselage.
There are "slots" cut into the skin for the two stiffener angles on the outboard side, which are also an attach point, and I'm thinking there should be slots to accomodate the web of the inboard pieces too. Will check.
