Brief Description: Final assembly riveting started - 4
Last up was to complete any last riveting before adding the bottom skin and sealant for the firewall to complete the final assembly.
There were the aft universal rivets for the end ribs that needed to be completed.
Then we riveted the FWD skin stiffener (F-719) and Auxillary longeron (F-713) up to within six inches of so of the firewall. I didn't want to go any further forward to enable applying the sealant to the firewall flange.
Finished the universal rivets on both sides for the end ribs
