Most of the rivets are 470AD4-4 but the end rivets on the in-spar ribs (HS-1004) are AD4-5. Make sure you don't rivet the angled ribs either. They will be riveted to the nose ribs and front spar once the front spar assembly is put inside the skin. Also, ensure your in-spar assembly is right side up. There are a few holes that don't get dimpled from the previous pages and these should be Up...i.e. opposite side of the 9 rivet square section on the front spar that the manual keeps referring to. The HS-904 ribs were riveted as well. Make sure you align them with the correct holes. See Figure 1 on Pg 8-10. There are holes where the nose ribs will get riveted with pop rivets later so make sure not to rivet the 904s in those spots. Used the cradles to lay in the skins then clecoed the interior nose ribs in place.
