3. Carefully remove snow, water, and ice
from the aircraft fuel filler cap area before
removing the fuel filler cap. Remove only
one aircraft tank filler cap at any one time,
and replace each one immediately after
the servicing operation is completed.
4. Wipe all frost from fuel filler necks before
5. Drain water from fuel tanks, filter cases,
and pumps prior to first flight of the day.
Preheat, when required, to ensure free
6. Avoid dragging the fueling hose where it
can damage the soft flexible surface of the
7. Observe NO SMOKING precautions.
8. Prior to transferring the fuel, ensure that
the hose is grounded to the aircraft.
9. Wash off spilled fuel immediately.
cautiously to avoid damaging the wing
11. Do not conduct fueling operations within
100 feet of energized airborne radar
equipment or within 300 feet of energized
ground radar equipment installations.
aircraft or fueling equipment, as shoes
with nailed soles or metal heel plates can
be a source of sparks, functions as a
biocide to commercial fuel.
2-102. FILLING FUEL TANKS.
Prior to removing the fuel tank filler cap,
the hose nozzle static ground wire shall be
attached to the grounding lugs that are
located adjacent to filler opening.
Do not fill the auxiliary fuel tanks unless
outboard main tanks are full.
Do not fill the ferry fuel tanks unless the
aircraft's main and auxiliary tanks are full.
1. Attach bonding cables to aircraft.
2. Attach bonding cable from hose nozzle to
ground socket adjacent to fuel tank being
Do not insert fuel nozzle completely into
fuel cell due to possible damage to bottom
of fuel cell.
3. Remove fuel tank filler cap and fill main
tanks before filling the corresponding
4. Secure applicable fuel tank filler cap.
Make sure latch tab on cap is pointed aft.
5. Disconnect bonding cables from aircraft.
To remove moisture and sediment from the fuel
system, 12 fuel drains are installed, plus 1 for the ferry
system, when installed. Two drain lines are included
with the fuel ferry tanks to drain off moisture from the
tanks. Refer to Figure 2-32.
2-104. APPROVED FUEL TYPES.
a. Army Standard Fuels. In accordance with
accepted commercial procedures. Army standard fuel
b. Alternate Fuels. Army fuel is JP-5.
c. Emergency Fuel. Avgas is emergency fuel
and subject to 150-hour time limit. Refer to
Tables 2-13, 2-14, and 2-15 for identification of, and
information on, fuels used to service the aircraft.