Learjet 60 - EFIS Control Panel

Pilot's
Manual

Learjet 60
EFIS
CONTROL PANEL
An EFIS control panel is installed
on
both the
pilot's
and
copilot's
in-
strument panel . Each panel controls its respective EFIS . Each switch is
an alternate action switch . On-side selection is indicated by a green an-
nunciation and cross-side or reversionary mode selection is indicated
byan amber annunciation .
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This switch selects the attitude heading system for the re-
spective EFIS display, flight director and other systems re-
quiring
attitude or
heading
data . The switch is used to
recover attitude and heading data if the on-side AHS fails
.
Whenever cross-side AHS data is selected, the pitch, roll,
and heading comparators will be disabled, and all equip-
ment normally sourced by the on-side AHS will be
sourced by the cross-side AHS .
This switch selects the air data system for the respective
EFIS
display, flight director and other systems requiring
air data . The switch is used to recover air data if the on-
side ADC fails .
This switch selects the control display unit for the respec-
tive EFIS
display .
The
switch is used to recover control if
the on-side CDU fails .
This
switch selects the active transponder system (1 or 2) .
Transponder 1 is normally controlled
by
the
left
RTU
and
transponder 2 by the right RTU .
This reversionary mode selection switch
is used to recover
data on the PFD . When actuated in the REV mode, the ad-
jacent MFD will assume the functions of the PFD . This
would
be used if a PFD tube fails .
PM-123
Change 4