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3.3 LEANING ASSIST MODE
The pilot should follow the engine manufacturer's recommended leaning procedures in the Aircraft
NOTE:
Flight Manual Supplement (AFMS).
A leaning assist function is available on the Engine Page to assist in the leaning process.
Accessing Leaning Assist Mode:
1) Press the ENGINE Softkey to open the Engine Page.
2) Press the LEAN Softkey to identify peaks.
3) Press the LEAN Softkey again to exit Leaning Assist Mode.
When the LEAN Softkey is pressed, the system initially highlights the number and EGT readout of the cylinder
with the hottest EGT. The ∆ Peak temperature is the difference between the peak temperature and the present
temperature for the peaked cylinder. When the first peak is detected, "1st" is annunciated below that cylinder' s
EGT bar and the temperature is marked in light blue on the graph.
The system continues to detect peak EGTs for each cylinder lean of peak as the fuel flow is decreased, and the
peak of each cylinder' s EGT is indicated by a light blue marker on the graph. Once all cylinders are lean of peak,
the last cylinder to peak is denoted by the "Last" annunciation below its bar on the graph.
Light Blue Bar
Represents Peak
Indicates First
Cylinder to Peak
190-00592-06 Rev. A
Current Difference
from Peak Temperature
(Selected Cylinder)
Figure 3-7 Leaning Assist Mode
Garmin G1000 Pilot's Guide for the Diamond DA40/40F
ENGINE INDICATION SYSTEM
Light Blue Bars
Represent Peaks
Indicates Last
Cylinder to Peak
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