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Garmin G1000 Pilot’s Guide for Cessna Nav III
190-00498-07 Rev. A
86
ENGINE INDICATION SYSTEM
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE
AFCS
ADDITIONAL
FEATURES
APPENDICESINDEX
3.2 LEAN DISPLAY
NOTE: The pilot should follow the engine manufacturer’s recommended leaning procedures in the Pilot’s
Operating Handbook (POH).
The Lean Display is accessed by pressing the ENGINE Softkey followed by the LEAN Softkey and provides
information for performing engine leaning. The engine gauge(s) and Fuel Quantity Indicator remain on the Lean
Display and fuel flow is listed as a numeric readout. Exhaust gas (EGT) and cylinder head (CHT) temperatures for
all cylinders are displayed graphically with numeric readouts for the selected cylinder. For turbocharged aircraft,
the Turbine Inlet Temperature (TIT) Indicator is shown above the EGT Bar Graph.
Accessing the EIS Lean Display:
1) Press the ENGINE Softkey.
2) Press the LEAN Softkey.
3) To return to the default Engine Display, press the ENGINE or BACK Softkey.
From the Lean Display, the pilot can use the CYL SLCT and ASSIST softkeys to get information about specific
cylinders. Pressing the
CYL SLCT
(Cylinder Select) Softkey cycles through the cylinders (i.e., changes the cylinder
number indicated on the bar graphs in light blue). This softkey is disabled when the ASSIST Softkey is pressed
or when a cylinder experiences a caution or warning condition; the softkey remains disabled until the temperature
returns to normal.
Monitoring the desired cylinder’s EGT and CHT:
From the Lean Display, press the CYL SLCT Softkey to cycle through each cylinder and view its EGT and CHT.
The selected cylinder number is shown in light blue.
The ASSIST Softkey aids in the leaning process by identifying the peak of the first cylinder whose temperature
falls. This cylinder’s number below the EGT bar graph is highlighted in light blue as the selected cylinder. If the
temperature of the peaked cylinder exceeds the peak value, the peak value is not updated. Monitoring of the
cylinder continues until the ASSIST Softkey is pressed again which disables lean assist, and removes the peak
block from the bar graph and the temperature deviation from peak (DPEAK). The system then returns to seeking
the hottest cylinder.