Fuel Contamination; Garmin G300 - Cessna SKYCATCHER 162 Pilot's Operating Handbook And Flight Training Supplement

CESSNA SECTION 8
MODEL 162 AIRPLANE HANDLING, SERVICE

GARMIN G300

AND MAINTENANCE
FUEL
(Continued)

FUEL CONTAMINATION

Fuel contamination is usually the result of foreign material present in
the fuel system, and may consist of water, rust, sand, dirt, microbes or
bacterial growth. In addition, additives that are not compatible with fuel
or fuel system components can cause the fuel to become
contaminated.
Before each flight and after each refueling, use a clear sampler cup and
drain at least a cupful of fuel from each fuel tank drain location and from
the fuel strainer quick drain valve to determine if contaminants are
present, and to ensure the airplane has been fueled with the proper
grade of fuel.
If contamination is detected, drain all fuel drain points again, including
the fuel strainer and fuel sump valve, and then gently rock the wings
and lower the tail to the ground to move any additional contaminants to
the sampling points. Take repeated samples from all fuel drain points
until all contamination has been removed. If, after repeated sampling,
evidence of contamination still exists, the airplane should not be flown.
Tanks should be drained and system purged by qualified maintenance
personnel. All evidence of contamination must be removed before
further flight. If the airplane has been serviced with the improper fuel
grade, defuel completely and refuel with the correct grade. Do not fly
the airplane with contaminated or unapproved fuel.
In addition, Owners/Operators who are not acquainted with a particular
fixed base operator should be assured that the fuel supply has been
checked for contamination and is properly filtered before allowing the
airplane to be serviced. Fuel tanks should be kept full between flights,
provided weight and balance considerations will permit, to reduce the
possibility of water condensing on the walls of partially filled tanks.
To further reduce the possibility of contaminated fuel, routine
maintenance of the fuel system should be performed in accordance
with the airplane Maintenance Manual. Only the proper fuel, as
recommended in this POH, should be used, and fuel additives should
not be used unless approved by Cessna and the Federal Aviation
Administration.
162PHUS-01 8-21
U.S.