1. Secure all electronic and electrical switches on
the aircraft not required for fueling. Once a fueling
evolution has commenced, the aircrafts electrical
power status and connections are NOT to be changed
until the evolution is completed. This means the follow-
a. NO aircraft engines or auxiliary power units
will be started or stopped.
b. External power will NOT be connected,
disconnected, or switched on or off.
c. Changing the aircrafts electrical power
status can create significant ignition sources.
2. Verify that manned fire-fighting equipment is
in the area. The flight deck P-16 is manned by crash and
salvage personnel when aircraft are aboard, and satisfies
this requirement for fueling on the flight deck. On the
hangar deck, if no roving fire-fighting equipment is
manned, the fuel crew must have a portable fire extin-
guisher manned nearby.
3. Take a sample if needed for quality surveil-
lance checks. The hose (not the entire station) is consid-
ered ready for use if an acceptable fuel sample was taken
under normal flow conditions within the preceding 24
hours. If this has not occurred, the hose MUST be
flushed through the flushing connection into the se-
lected contamination tank, and a sample taken and
tested for contamination prior to refueling the first
aircraft. Fueling must NOT begin until acceptable sam-
ple results are obtained. The Maximum allowable limits
for sediment and water contamination are 2 milligrams
per liter (2mg/1) for sediment, and 5 parts per million
(5ppm) for free water.
4. Check for hot brake condition (plane cap-
5. Ensure that the aircraft has initial tiedowns.
Aircraft tiedowns will not be removed or altered during
the aircraft refueling evolution.
Attach the grounding wire from the deck to the
Grounding connections must be made to bare
Position the fuel hose.
Remove refueling adapter cap from the aircraft
and the dust cover from the pressure nozzle. Inspect the
face of the nozzle and make sure it is clean. Inspect
index pin area for excessive wear. Verify that the flow
control handle is in the fully closed and locked position.
9. Visually inspect the aircrafts adapter (recep-
tacle) for any damage or significant wear. If there is any
doubt about the integrity of the adapter, notify the
Refueling will not be performed unless
qualified squadron personnel are present.
A worn or broken adapter can defeat the
safety interlocks of the refueling nozzle, per-
mitting the poppet valve to open and fuel to
spray or spill.
10. Confirm that the switch on the nozzle quick-
disconnect coupling (QDC) is in the OFF position.
11. Lift the nozzle by lifting the handles; align the
lugs on the nozzle with the slots on the aircraft adapter;
and connect the nozzle to the aircraft by pressing it
firmly onto the adapter and rotating it clockwise to a
positive stop. The nozzle must seat firmly on the adapter
and not be cocked.
12. Upon receiving signals from the nozzle opera-
tor that hook-up is complete and from the plane captain
that he is ready to begin the fueling operation, the station
operator opens the defueling pump discharge valve, the
Cla-Val cutout valve, and the hose reel cutout valve.
After checking the gauge for the station supply riser to
ensure fuel pressure is available, the station operator
starts the defuel pump. The station operator must remain
in position at the station controls throughout the fueling
13. Place the quick-disconnect switch in the ON
(fuel) position. This energizes the solenoid-operated
pilot valve (SOPV) for the Cla-Val and places it in the
The flow control handle of the pressure
nozzle must be placed in either of two locked
positions: fully open or fully closed. The handle
is NOT to be used as a flag to indicate fuel flow.
Excessive wear on the aircraft adapter and the
fuel nozzle poppet will result if the handle is
allowed to float in the unlocked position.