Section 31 Upper Forward Fuselage Assembly
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Page 31-2
Step 1: Fabricate the F-1044C Spacer from the AS3-063 x .625 as shown in Figure 1.
Step 2: Fabricate the F-1044B from AA6-125 x 3/4 x 3/4 as shown in Figure 2
Step 3: Fabricate the F-1003D and F-1003E Instrument Attach Flanges from AA3-031 x 3/4 x 3/4 as shown in Figure 3.
Step 4: Break apart the F-1044DEF Angle into individual F-1044D, F-1044E, and F-1044F angle as shown in Figure 4.
Step 5: Flute and straighten the flanges of the F-1003C Instrument Attach Flange per Section 5N.
Cut apart the panel attach flange into individual F-1003C-L and F-1003C-R Instrument Panel Attach Flanges as shown in Figure 5.
Page 31-3
Step 1: Final-Drill # 40 all the nutplate attach holes in the F-1003C-L & R Instrument Panel Flanges as shown in Figure 1.
Final-Drill #19 all the nutplate screw holes in the Instrument Panel Attach Flanges
Deburr all final drilled holes in the Instrument Panel Attach Flanges.
Dimple the nutplate attach holes in the Instrument panel attach flanges. See Figure 1. Dimple the nutplates that will be attached to the instrument panel attach flanges.
Rivet the nutplates to the instrument panel attach flanges as shown in Figure 1.
Step 2: Final Drill #40 the nutplate attach holes in the F-1044A Fwd Fuselage Rib as shown in Figure 2.
Final-Drill #19 the screw hole in the fwd fuselage rib as shown in Figure 2.
Final-Drill #30 the rivet holes in the forward flange of the fwd fuselage rib as shown in Figure 2.
Deburr the final-drilled holes
Dimple the nut plate attach holes in the forward flange of the fwd fuselage rib. See Figure 2.
Dimple the nutplates that will be attached to the fwd fuselage rib.
Rivet the nutplates to the forward rib shown in Figure 2.
Step 3:
Final Drill #40 the nutplate attach holes in the F-1045-L & R Fwd Fuselage Rib as shown in Figure 3.
Final-Drill #19 the screw hole in the fwd fuselage rib as shown in Figure 3.
Final-Drill #30 the rivet holes in the forward flange of the fwd fuselage rib as shown in Figure 3.
Deburr the final-drilled holes
Dimple the nut plate attach holes in the forward flange of the fwd fuselage rib. See Figure 3. Dimple the nutplates that will be attached to the fwd fuselage rib.
Rivet the nutplates to the forward rib as shown in Figure 3.
Page 31-4
Step 1: Using the edge of a table or other straight edge, Bend the lower portion of the F-1086A Sub Panel Center as shown in Figure 1.
Step 2: Using the edge of a table or other straight edge, Bend the lower portion of the F-1068B-L and F-1068B-R Sub Panel Sides as shown in Figure 2.
Step 3: Flute and straighten the curved flanges of the F-1068B-L and F-1068B-R Sub Panel Sides per Section 5N.
Step 4: Cleco the F-1044A Fwd Fuse Rib, F-1044D,E, and F Angles, F-1045-L & R Fwd Fuse Ribs, F-1086A Sub Panel Center, F-1068B-L & R Sub Panel Sides, and Control Cable Bracket as shown in Figure 3.
Final-Drill #30 all holes common to the parts clecoed together
Page 31-5
Step 1: Insert the F-1044B Angle and F-1044C Spacer through the angle shaped opening in the F-1068A Sub Panel Center.
Cleco the angle and spacer to the F-1044A Fwd Fuselage Rib as shown in Figure 1.
Step 2: Remove the F-1083 Control Cable Bracket from the F-1068A Sub Panel Center.
Final-Drill #19 the nutplate screw holes in the control cable bracket. See Figure 2.
Final-Drill #the nutplate attach holes in the control cable bracket. See Figure 2.
Deburr the holes and edges
Dimple the Nutplate attach holes.
Step3: Using a #30 Long Drill bit, drill downward through the [pilot hole near the middle of the F-1001B Upper Firewall Angle and through the upper surface of the F-1001K Firewall Recess. See Figure 3.
The new hole in the firewall access will allow for drilling back up into the F-1044B Angle.
Use care in drilling so as not to enlarge the pilot hole in the upper firewall angle.