Rivet 719B angles and longerons to firewall. I was wondering about rotational alignment, so the other forward longerons were also clecoed in place. That gave me a reference to get the 713 longeron lined up nicely. I then installed the firewall with all these parts clecoed on.
Cleco forward fuselage structure and firewall to 970 skins.
Got about halfway done clecoing the firewall to the skins wondering why it looked funny. Realized I hadn't dimpled the firewall yet. So took a bunch of clecos back out and used the vise grip dimpler to get all three flanges on the firewall.
