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7. Remove ground wires.
8. Remove fire extinguisher.
June 2007
Information Manual 8-23
Cirrus Design Section 8
SR22 Handling, Servicing, Maintenance
Fuel Contamination and Sampling
Typically, fuel contamination results from foreign material such as
water, dirt, rust, and fungal or bacterial growth. Additionally, chemicals
and additives that are incompatible with fuel or fuel system
components are also a source of fuel contamination. To assure that
the proper grade of fuel is used and that contamination is not present,
the fuel must be sampled prior to each flight.
Each fuel system drain must be sampled by draining a cupful of fuel
into a clear sample cup. Fuel drains are provided for the fuel
gascolator, wing tanks, and collector tank drains. The gascolator drain
exits the lower engine cowl just forward of the firewall near the airplane
centerline. Fuel tank and collector tank drains are located at the low
spot in the respective tank.
If sampling reveals contamination, the gascolator and tank drains must
be sampled again repeatedly until all contamination is removed. It is
helpful to gently rock the wings and lower the tail slightly to move
contaminates to the drain points for sampling. If after repeated
samplings (three or more), evidence of significant contamination
remains, do not fly the airplane until a mechanic is consulted, the fuel
system is drained and purged, and the source of contamination is
determined and corrected.
If sampling reveals the airplane has been serviced with an improper
fuel grade, do not fly the airplane until the fuel system is drained and
refueled with an approved fuel grade.
To help reduce the occurrence of contaminated fuel coming from the
supplier or fixed based operator, pilots should assure that the fuel
supply has been checked for contamination and that the fuel is
properly filtered. Also, between flights, the fuel tanks should be kept as
full as operational conditions permit to reduce condensation on the
inside of fuel tanks.
Draining Fuel System
The bulk of the fuel may be drained from the wing fuel tanks by the use
of a siphon hose placed in the cell or tank through the filler neck. The
remainder of the fuel may be drained by opening the drain valves. Use
the same precautions as when refueling airplane. Refer to the SR22
Maintenance Manual for specific procedures.
June 2007
8-24 Information Manual
Section 8 Cirrus Design
Handling, Servicing, Maintenance SR22
Battery Service
Battery #1 is mounted to the forward right side of the firewall and
access is gained by removing the upper cowl. The battery vent is
connected to an acid resistant plastic tube that vents gases and
electrolyte overflow overboard. Battery #2 is located behind the
baggage compartment aft bulkhead below the parachute canister.
Battery #2 consists of two sealed, maintenance-free units and is not
considered pilot serviceable.
Battery #1 fluid level must not be brought above the baffle plates. Until
experience indicates a longer interval is justified, the battery should be
checked every 30 days or 25 flight hours to determine that the fluid
level is proper and the connections are tight and free of corrosion. Do
not fill the battery with acid use distilled water only. If the battery is not
properly charged, recharge it starting with a rate of four amperes and
finishing with a rate of two amperes in accordance with Airplane
Maintenance Manual (AMM) procedures. The battery should be
removed from the airplane for charging, and quick charges are not
recommended.
Battery 2 is a maintenance free, rechargeable, sealed, lead acid
batter. Mounted in the empennage just aft of bulkhead 222, there is no
need to check the specific gravity of the electrolyte or add water to
these batteries during their service life. Refer to the Airplane
Maintenance Manual (AMM) for Overhaul and Replacement Schedule.
The external power receptacle is located on the left side of the
fuselage just aft of the firewall. Refer to the Airplane Maintenance
Manual (AMM) for battery servicing procedures.
June 2007
Information Manual 8-25
Cirrus Design Section 8
SR22 Handling, Servicing, Maintenance
Cleaning and Care
Cleaning Exterior Surfaces
• Caution •
Airplane serials 0334 and subsequent with Ice Protection
System; Do not wax leading edge porous panels. Refer to
Section 9, Supplements for specific servicing information on
the Ice Protection System.
• Note •
Prior to cleaning, place the airplane in a shaded area to allow
the surfaces to cool.
The airplane should be washed with a mild soap and water. Harsh
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AIRPLANE INFORMATION MANUAL for the CIRRUS DESIGN SR22(96)
