Summary for the preceding week: Left elevator - riveted bottom skin to spar using all blind rivets. Riveted trim spar to bottom skin and to gusset. Fit, drilled, and counter sunk AEX wedge to training edge and riveted. Trim tab - bent ends closed, drilled and dimpled. Riveted control horn to bottom skin. Riveted spar to bottom skin. Glued foam stiffeners into place.