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nuts/bolts, alignment, brake pad wear/cracks, signs of
hydraulic fluid leakage, and hydraulic line security/
abrasion.
Inside the cart where the pilot sits, check the seats,
seat rails, and seat belt attachment points for wear,
cracks, and serviceability. A few manufacturers offer
powered parachutes with adjustable front seats. The
lever moves the pin in and out of the seat rail holes
and the seat then moves forward and back along the
rail. The seat rail holes should be checked for wear;
they should be round and not oval so there is no play
5-7
in the fixed position of the pilot seat. Inspect where
the seat lock pins fit; check the pin and seat rail grips
for wear and serviceability. [Figure 5-6]
The battery and ignition switches need to be in the
OFF position at the beginning of the preflight inspection.
They will be turned on and then off again
to check the different components operated by the
power source during the preflight. While checking the
ignition switches, check that the strobe is operational
if one is installed. Exercise the primer or primer bulb,
if the PPC is so equipped; you should feel resistance
when exercised. Faulty primers can interfere with
proper engine operation.
Manipulate the engine throttle control by slowly
moving through its full range of motion to check for
binding or stiffness. On two-stroke engines with oil
injection, it is important to check that the oil injection
mechanism is moving freely. [Figure 5-7]
Set the altimeter to the field elevation or set in the
barometric pressure, if equipped. Turn on the ignition
or engine instrument system master and make note
of the fuel quantity gauge indications, if applicable,
for comparison with an actual visual inspection of the
fuel tank(s) during the exterior inspection.
Inspect for any signs of deterioration, distortion, and
loose or missing bolts or locknuts. Gently shake the
cart to determine if objects and airframe parts are
loose and need to be tightened. Treat all aircraft and
their components with respect and care while conducting
a preflight. As with all aircraft, the PPC does
not need to be “over-handled” to perform an adequate
preflight inspection. Check that all cables are free of
kinks, frays, abrasions or broken strands; check each
end of each flying cable for bolt security and check
that the thimbles are not twisted or elongated.
Figure 5-7. Check the ignition switches, primer and oil
injections mechanism during preflight inspections.
Figure 5-6. Adjustable powered parachute front seat
mechanism.
5-8
Check the steering bars for freedom of movement,
for proper steering line attachments, and confirm the
steering bars are securely attached.
Inspect the rear wheel and axle assembly. Check the
tires for proper inflation, as well as cuts, bruises, wear,
bulges, imbedded foreign objects, and deterioration.
As a general rule, tires with cord showing, and those
with cracked sidewalls are unairworthy. Check the
axle and axle hardware, and inspect that the wheels
rotate properly.
Fuel and Oil
Pay particular attention to the fuel quantity, type,
grade, and quality. Many fuel tanks are sensitive to attitude
when attempting to fuel for maximum capacity.
The powered parachute attitude can also be affected
laterally by a ramp that slopes. Always confirm the
fuel quantity indicated on the fuel gauge(s) by visually
inspecting the level of the fuel tank(s).
The engine manufacturer recommends the type of fuel
that any given powered parachute engine should burn;
this recommendation should be strictly conformed to.
Although most PPC engine manufacturers recommend
premium grade auto fuel, it is usually acceptable
to burn 100LL AVGAS on a limited basis. Most
airports will not have auto fuel available on the field.
Ensure the fuel caps have been securely replaced
following each fueling and the vents are free and
open. Most powered parachutes have an inline fuel
filter located somewhere between the tank and the
carburetors; check the fuel filter for contaminates.
[Figure 5-8]
The fuel tank vent is an important part of all preflight
inspections. [Figure 5-9] Be alert for any signs of vent
tubing damage, as well as vent blockage. A functional
check of the fuel vent system can be done simply by
opening the fuel cap. If there is a rush of air when
the fuel tank cap is opened, there could be a serious
problem with the vent system.
Figure 5-8. Inspect the inline fuel filter during preflight.
Check the oil reservoir to ensure the proper oil is
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Powered Parachute Flying Handbook动力伞飞行手册(42)
