The auxiliary structure gives the locations to attach the system components and assemblies contained in the fuselage. The auxiliary structure includes these assemblies:
- The floor of the flight compartment (Ref. Fig. 1)
- The floor of cabin
- The floor of the rear fuselage
- The installation of the avionic tray in the rear equipment bay
- The structure for the avionic installation between stn 130 and stn 150
- The installation of the maintenance panels in the battery bay
- The installation of the mounting brackets for the flight controls
- The installation of the center console assembly
- The installation of the side console assemblies
- The installation of the support structure for the instrument panels