ALPHA Trainer
www.pipistrel-aircraft.com
REV. 0
POH-162-00-40-050
Handling and servicing
Special inspections
After having exceeded VNE or landed in a rough manner:
Check the undercarriage, fuselage & wing surfaces and main spars for abnormalities. It is highly
recommended to have the aircraft verified for airworthiness by authorized service personnel.
Clicking noise overhead
The wings are factory fitted to the fuselage to make a tight fit at approximately 80 F. When exposed
to low temperatures, materials shrink. Therefore, flying in the winter or in cold temperatures, you may
encounter “click-clack” like noises above your head. The remedy for this unpleasant noises is to add
washers, typically of 0,5 mm thickness in-between wing and fuselage. Washers must be added both
at rear and front bushings at one side of the fuselage only!
WARNING!
It is mandatory to consult the manufacturer or authorised service personnel
before applying washers!
Draining and refueling
Whenever draining or refueling make sure master switch is set to OFF.
Draining the fuel system
The gascolator is located beneath the bottom engine cover on the left hand side of the fuselage.
To drain the fuel system, open the drain valve on the gascolator. Drain approximately 1/2 cup of fuel.
Try to prevent ground pollution by collecting the fuel with a canister.
To close the valve simply turn it in the opposite direction.
Do not use force or special tools!
CAUTION!
Always drain the fuel system before you have moved the aircraft from a standstill to
prevent mixing of the fuel and eventual water or particles.
Refueling
CAUTION!
Before refueling it is necessary to ground the aircraft!
Refueling can be done by pouring fuel through the fuel tank opening on top/side of the fuselage.
After refueling it is recommended to eliminate eventual air pockets from inside the fuel system. To
do that, drain some fuel with fuel valve fully open. Also, leave the engine running at idle power for a
couple of minutes prior to taking-off and test the engine at full power for a minimum of 30 seconds.
CAUTION!
Use authorized plastic containers to transport and store fuel only! Metal canisters
cause water to condensate on the inside, which may later result in engine failure.
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