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attachment to the keel. Inspect the control bar to down tube
brackets and bolts. [Figure 5-43] Inspect fore and aft fl ying
wire condition, attachment to the keel, and the lower control
bar corner brackets.
Inspect the left side fl ying wire attachment to the control
bar bracket and condition of the fl ying wire up to the wing
attachment. Examine the fl ying wire attachment to the leading
edge and crossbar, as well as all hardware at this crossbar and
leading edge junction. [Figure 5-44] Inspect the condition of
the crossbar and the leading edge from the nose to the tip. Any
discrepancies or tears in the leading edge fabric must lead to
more detailed investigation of the leading edge spar itself.
Inspect the tip area, including the washout strut and general
condition of the tip. If it is a double surface wing, look inside
the tip and examine the inside of the wing and its components.
[Figure 5-45]
From the tip, inspect the surface condition of the fabric.
Generally, if the fabric has not been exposed to sunlight for
long periods and stored properly, the wing fabric should stay
in good shape.
Move along the trailing edge of the wing, inspecting the
condition of the trailing edge and the tip batten attachments
back to the keel. [Figure 5-46] Inspect the sail material,
top and bottom, on the wing. Note that the trailing edge is
5-18
Figure 5-50. Checking the front wheel, tire, and front fork
assembly.
Figure 5-49. Inspecting the front keel and seat attachments to the
keel.
Figure 5-47. Inspecting the kingpost, top wires, and crossbar
tension hardware.
Figure 5-48. Inspecting the wing attachment to the carriage.
vulnerable to rocks fl ying up from the wheels and hitting the
propeller. Therefore, it is especially important to inspect the
trailing edge in detail before each fl ight.
At the aft keel area in the middle of wing, inspect the kingpost
and all the condition of the wires from the kingpost to ensure
they are not wrapped around the trailing edge battens.
[Figure 5-47] Inspect the wing tensioning hardware where
the crossbar tensioning cables attach to the rear of the keel.
Repeat this same sequence for the right (or opposite) side of
the wing, in the reverse order. Inspect the condition of the
wing attachment to the carriage, including the backup cable.
[Figure 5-48]
Carriage Inspection
Inspect the mast from the top to the bottom and the carriage
keel from the back to the front. [Figure 5-49] Check the front
tube attachment and top and bottom security attachments.
Check the seat security and seat attachments from the keel
to the mast.
Check the front nose wheel for proper play, tire infl ation,
and secure axle bolt. Test the ground steering bar and ensure
there is smooth steering range of motion. Check the front
shocks, if installed, the brakes for rust and corrosion, loose
nuts/bolts, alignment, cracks, signs of hydraulic fl uid leakage,
and hydraulic line security and abrasion, if so equipped.
[Figure 5-50] Check the foot throttle for smooth operation
and assure the parking brake is secured.
Inspect the main landing gear drag struts, attachment to the
keel, and attachment to the rear wheels. Examine the rear
tires for proper infl ation and tread plus the wheel attachment
5-19
Figure 5-52. Checking the cowl attachment for security and
cracks.
Figure 5-53. Checking the security of the engine to the airframe.
Figure 5-51. Checking the rear landing gear struts.
Figure 5-54. Checking the security and condition of the fuel lines
and fuel filter condition.
nut for security. Check main landing gear strut, landing
gear shock absorber strut, and shock absorber operation.
[Figure 5-51] Inspect all landing gear strut attachments to
the airframe. Inspect the other side’s rear landing gear by
repeating the above procedure in reverse. Check all cowling
for secure attachment and cracks. [Figure 5-52]
Powerplant Inspection
Inspect engine attachment to the carriage for security and
cracks. In addition to looking at the bolts and mounts,
shake the propeller, as shown in Figure 5-53, to provide a
secure check of the propeller, gearbox, engine, and engine
attachment to the carriage.
Fuel System
• Inspect fuel tank attachment and condition.
• Inspect fuel vent system, and ensure the fuel supply
line is open (some WSC aircraft have fuel shut off
valves outside the fuel tank).
• Inspect fuel pickup and fuel line running up to fuel
fi lter. While inspecting all fuel lines, jiggle all fi ttings
and connections to ensure they are secure.
　
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