SECTION 7 CESSNA
AIRPLANE AND SYSTEM DESCRIPTION MODEL T182T NAV III
GFC 700 AFCS
U.S.
FUEL SYSTEM (Continued)
FUEL INDICATING SYSTEM (Continued)
The fuel quantity indicator shows the fuel available in the tank up to the
limit of the sensor measurement range. At this level, additional fuel may
be added to completely fill the tank, but no additional movement of the
indicator will result. The limit for sensor measurement range is
approximately 35 gallons and is indicated by the maximum limit of the
green band. When the fuel level decreases below the maximum limit of
the fuel sensor, the fuel quantity indicator will display fuel quantity
measured in each tank. A visual check of each wing tank fuel level
must be performed prior to each flight. Compare the visual fuel level
and indicated fuel quantity to accurately estimate usable fuel.
The fuel quantity indicators detect low fuel conditions and incorrect
sensor outputs. When fuel quantity is less than 8 gallons indicated (and
remains less than this level for more than 60 seconds), LOW FUEL L
(left) and/or LOW FUEL R (right) will be displayed in amber on the PFD
and a tone will sound. The fuel quantity indicator pointer(s) and
indicator label will change from white to steady amber. When fuel
quantity reaches the calibrated usable fuel empty level, the LOW FUEL
L and/or LOW FUEL R remain amber and the indicator pointer(s) and
label change to flashing red.
Takeoff is not recommended if both fuel quantity indicator
pointers are in the yellow band range and/or amber LOW
FUEL L or LOW FUEL R annunciator is displayed on the
PFD.
In addition to low fuel annunciation, the warning logic is designed to
report failures with each sensor. If the system detects a failure, the
affected fuel indicator will display a red X. A red X through the top part
of the indicator indicates a failure associated with the left fuel tank. A
red X through the bottom part of the indicator indicates a failure
associated with the right fuel tank.
(Continued Next Page)
T182TPHBUS-01
7-50
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