Section 27 Firewall … Page 27-4, Steps 8 Joining the Fire Wall Bulkhead Assembly to the Forward Rib Subassembly…. Today I riveted the Forward Left and Right Rib Assembly to the Fire Wall including the Gussets and the Fuel Valve Bracket and fitted the Flanged Ducts for heating and cooling the passenger compartment as described in figure 2.
Painted Fiewwall
Joining the Fire Wall Bulkhead Assembly to the Forward Rib Subassembly