AEROPRAKT-22LS Pilot Operating Handbook
A22LS-XXX-POH-01
For tying the airplane down use the wing struts near their attachment points to the wing
and propeller shaft.
Use suitable clamps to fix the ailerons and elevator when the airplane is tied down outside.
When storing the airplane outside it is recommended to protect the cockpit glass with
suitable covers.
Never left the cockpit doors open even for a shortest time in a windy weather! Wind may
shut the door abruptly and damage it.
8.4 Airplane washing
Keeping the aircraft clean is essential for its efficient and safe operation.
Pilots must make sure during the preflight check that the airplane is clean and free of
corrosion.
Airplane washing should be done using cloth or soft sponge abundantly soaked in water
with addition of mild washing agents.
Never use gasoline, solvents or other aggressive liquids for washing the airplane
and especially the cockpit glass!
Cockpit glass must be finally washed with plenty of water. It is recommended to let water
dry and not to wipe it with a cloth as dust particles stuck in the cloth may scratch the glass.
After airplane washing inspect the parts that must be protected from corrosion (hinges,
joints, etc.). Clean them of any remaining water and old grease and lubricate anew.
8.5 Disassembling and assembling the airplane
Aircraft operation and servicing in some cases may require to disassemble (and assemble
back) the airplane or remove some of its components. This section describes how to
disassemble correctly the airplane by removing its main components: left and right wings,
horizontal tail, propeller, engine.
8.5.1 Wing removal
Left and right wings shall be removed in turn (in any order) according to the following
sequence (see Fig. 24):
1. Disconnect the aileron control shaft.
2. Disconnect the electric connectors of fuel level sender cable.
3. Disconnect the fuel lines.
4. Disconnect the full and static pressure lines at their joints (left wing, see Fig. 12).
5. Remove the wing strut brace by disconnecting it from the wing and fuselage while
holding the wing.
6. Disconnect the wing at its forward and rear attachment points.
After disconnecting the wings it is recommended to insert all the fasteners back and lock
them with safety wire or pins not to loose them. Also secure with safety wire the spherical
bearings in the forward and rear wing attachment fittings.
