Figure 5-28 Fuel Quantity Calibration Page; Figure 5-29 Fuel Quantity Calculation Procedure - Garmin GI 275 Installation Manual

c. It is common for fuel tanks to hold more fuel than shown on the fuel indicator; however, the
indicator will not show fuel above the maximum gauge range.
d. Some fuel tank designs can hold more fuel when the aircraft is not level, so the maximum
gauge range may not be obtainable. Fill the tank as much as possible and enter the actual
amount that was added. The final fill point must be within 10% of the gauge range (e.g., if the
gauge range is 50 gallons, the final calibration point for that tank must fall between 45 and
50 gallons).
25. Repeat the Fuel Quantity Calibration for any remaining fuel tanks not included in this calibration
(e.g., auxillary tank).
Enter the
ACTUAL
amount of fuel
added this point
Wait until this
value stabilizes
at the tenths
place before
continuing
NOTE
It is recommended that the display configuration be saved to a USB drive immediately
after the Fuel Quantity Calibration is completed.
190-02246-10
Rev. 11

Figure 5-28 Fuel Quantity Calibration Page

Figure 5-29 Fuel Quantity Calculation Procedure

GI 275 Part 23 AML STC Installation Manual
Page 5-82