GROUND SERVICING
AIRPLANE
OPERATIONS
MANUAL
1-12-25
Page
2
Code
04
REVISION 38
AOM-145/1114
− Set the power selection switch to NORMAL position or deenergize
the airplane.
NOTE: The power selection switch guard shall be manually closed.
− Disconnect the grounding cable.
WARNING:
MAKE SURE THAT ALL THE SWITCH GUARDS ON
THE REFUELING PANEL ARE IN THE CLOSED
POSITION.
− Close access door.
GRAVITY REFUELING
Wing tanks gravity refueling is accomplished through the filler caps
installed on the upper wing surface. Prior to refueling, the refueling
nozzle must be grounded through the grounding point at each wing
lower surface. The operation consists in opening the filler cap and
inserting the refueling nozzle into the filler port. Fuel quantity may be
checked through the EICAS indication or through the magnetic
measuring sticks in case of failure of the normal indication system.
FUEL QUALITY CONTROL
Before accepting delivery from the fuel supplier, a check should be
made with the purpose of ensuring that fuel intended for use in
airplane is in a fit state for use. Fuel should be considered
unsatisfactory for use if a sample shows:
− trace of sediments;
− globules of water;
− cloudiness; and
− positive reaction to water detector test.
A visual inspection to a sample should be accomplished to ensure that
it does not contain excessive sediment. Generally, aviation turbine fuel
is clean, and its color is appropriate to its grade (normally undyed and
clear). Apart from cases where water is evidently present in the form of
globules, only an appropriate check can be conclusive to indicate the
presence of water in a fuel sample.
Both free and suspended water may be present in aviation jet fuel.
The water finding paste or paper test method is used to show the
presence of free water. The chemical water detector test method is
designed to detect suspended water and should be used therefore in
addition to the paste/paper method when checking fuels.
To Next Page
Loading...
