ENGINE INSTRUMENT AND
CREW ALERTING SYSTEM
(EICAS)
The engine instrument and crew alerting sys-
tem (EICAS) is an integrated digital com-
puter/display system that replaces the majority
of the traditional gages and warning lights lo-
cated throughout the cockpit. The primary
EICAS display (Figure 16-36) is divided into
four designated areas: engine instruments,
CAS messages, system display pages and menu
items.
Additional Displays – Included within the en-
gine instrument display area on the EICAS
beneath the CAS area, the SAT (static air tem-
perature), the pitch trim setting and the flap
setting are displayed.
Backup engine indications, should both in-
board display units fail, or if the airplane ex-
periences a dual generator failure, can be
selected for display on either RMU.
CAS Messages
The IC-600 monitors the status of the various
aircraft and avionic systems on a continuous
basis and alerts the crew, as required, via the
CAS (crew alerting system) display by gen-
erating messages. Each message is prioritized
and color coded for display. Some of the mes-
sages will be accompanied by aural tones to
alert the flightcrew. Avionic CAS messages are
detailed in Table 16-2.
The CAS display is removed and replaced
with a red "X", covering the entire CAS dis-
play window for an invalid CAS display.
System Display Pages
In the lower third of the EICAS format is an
area dedicated to displaying airplane major
sub-system status. Normally, the airplane sys-
tem summary page (SUMRY on the menu) is
in view, which provides brief status reports of
all of the sub-systems (Figure 16-36). Menu
selectable, a system schematic of airplane
electrical, hydraulic, environmental control,
flight control, and fuel systems can be indi-
vidually selected for more detailed monitor-
ing by the flightcrew.
When sub-system data is within normal op-
erating range, it is displayed in white. As the
respective limits are exceeded, the data
changes color to amber or red and the data is
boxed in that same color. Displayed ex-
ceedances generally are accompanied by mas-
ter warning and caution tones/lights, crew
alerting system messages, and/or warning an-
nunciation lights. Once a parameter has re-
turned to normal range, or the condition is no
longer present, the data display changes color
back to white.
When the airplane is on the ground any con-
trol surface indication (i.e. trim, flaps and
spoilers) that is not suitable for takeoff will
have a white box around it. If power is ad-
vanced for takeoff, the box and indication will
turn red and be accompanied by the “config-
uration takeoff warning.”
Should the crew wish to declutter EICAS air-
plane system displays, depressing a sub-sys-
tem bezel button a second time removes that
systems information or simplified schematic
from view. To regain a display within this
area, the SUMRY button or another sub-sys-
tem button must be depressed.
L E A R J E T 4 5
P I L O T T R A I N I N G M A N U A L
16-63
FOR TRAINING PURPOSES ONLY
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