PIPER AIRCRAFT, INC.
PA-28-161, WARRIOR III
MAINTENANCE MANUAL
2K16
28-40-00
PAGE 8
Nov 30/06
2. Optional Installation
In S/N’s 2842218 and up, with the Avidyne Flight Max Entegra EFIS installed, fuel quantity information is
collected by the DAU and displayed on the MFD. Whenever the MFD, DAU, or any fuel sender is
replaced, calibrate the Fuel Quantity Indicator as follows:
A. This process requires that the aircraft be placed in a leveled condition per the leveling instructions in
8-20-00.
B. From the MFD maintenance page, depress LSK (L4) to access the Engine Setup Page.
C. Depress the Fuel Cal button LSK (L1) to enter the fuel calibration page.
D. Depress “Begin Cal” button LSK (R3) and follow the on-screen calibration procedure for left & right
tank zero fuel and full fuel calibration points as shown in Chart 3.
E. Use the Left Knob to select the current calibration point. The selected calibration point is highlighted
and the value displayed is the current reported fuel quantity from the DAU. A message at the bottom
of the screen prompts the operator to add the appropriate amount of fuel and then to select “Accept
Value” once the value reported form the DAU has stabilized.
If the DAU reported value is not within two (2) gallons of the test point value, a message “DAU
Reported Fuel Quantity Out of Tolerance” will be presented and the value will not be accepted.
F. Once all points have been calibrated, the operator presses “Calibration Complete”to cause the
calibration factors to be computed and applied to the DAU reported fuel quantity.
G. Other options from the Calibration Underway state are to “Restore Last Cal” and “Clear Cal.”
(1) Pressing “Restore Last Cal” causes the calibration values from the last completed calibration to
be restored and the state to change to Calibrated.
(2) Pressing “Clear Cal” causes all calibration values to be cleared and the state to change to “Not
Calibrated”. An “Are Your Sure?” prompt will give the operator a chance to reconsider the
decision to either “Restore Last Cal” or “Clear Cal”.
H. When the calibration procedure has been completed, press the Save button. If you decide not to
save the changes, pressing the Cancel button from the Underway state causes the current
calibration session to be aborted with any unsaved interim calibration values being discarded.
Changes will not take effect until the MFD has been restarted.
NOTE: The “empty” and “full” fuel readings on this set-up page will NOT display zero (0) or 36
gallons usable fuel on the Arrow or 24 gallons usable fuel on the Warrior/Archer for the
respective empty and full calibration points. However, the appropriate zero and full will be
displayed on the MFD in normal operation mode (not maintenance set-up).
Fuel Quantity
Zero 2.0 +.1;-0 gallon unusable
Full 24 + 0;-1 gallon usable
CHART 3
FUEL CALIBRATION
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