PLG12863E AFI4700 Pilot’s Guide 33
Attitude Source Selection
A cockpit switch for each display selects attitude source. When
operating normally, each switch is selected to onside attitude source.
In the case of abnormal operation or a gyro failure, the pilot or copilot
can select their EFI to display attitude from the offside source. ATT1 or
ATT2 is annunciated in the top left corner of the ADI to indicate which
side the attitude is sourced from. Even though one display may be
listening to an offside source, ATT1 or ATT2 appears on both displays
to alert both pilots that the attitudes are not independent.
Figure 2-15: Onside Attitude
To Next Page