The forward skin stiffener (F-719) is a piece of angle that has a jog on one end that fits over the 904 bulkhead flange, and the front end sits close to a piece of firewall angle. It needs a piece of angle fabricated and riveted to the fore end to attach it to the firewall angle. I made the 719B angle clips for this.
Getting the skin stiffeners in place was a little awkward since they are in the middle of the skin and there is no way to clamp them in place. I drew a line down the middle of the angle, lined it up with the holes in the skin, and used some tape to keep everything in place - at least enough to get the first hole drilled so I could start clecoing it together. You can see below how the angle clip connects the stiffener to the firewall angle. This would have been nearly impossible to do without my new right angle drill!
I repeated the process on the left side.
