Section 7
Description of the Airplane and Systems
Columbia 400 (LC41-550FG)
RC050002
Initial Issue of Manual: November 10, 2004
7-108
Latest Revision Level/Date: A/12-01-2004
Figure 7 - 35
Figure 7 - 36
Engine Instruments Lean Assist
The MFD is equipped with a lean assist function which is used to set the optimum mixture for
various operating conditions using TIT values. Above 85% power, operations must take place at
full rich; leaning is not allowed.
Leaning for Best Power
Between 65% and 85% power, leaning is only allowed to the best power point, which is rich of
the peak TIT. See Figure 7 - 37.