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If a temperature error has
been detected, the FMS
CDU will display an ADC
TEMP DISAGREE message
and N1 bug information will
be blanked.
<0039>
N1 REFERENCE
L/R APR (green)
L/R REV (green)
L/R REV (amber)
N1 Bug Readout
Indicates value set by the
FMS (THRUST LIMIT page).
If the pilot--entered altitude
and temperature values are
out of range, then N1 bug
readout will be blanked.
If FMS failed -- readout
then indicates value set on
EICAS MENU page
(N1 reference line).
<0039>
Vol. 1 20--50--9
REV 56, Jan 31/03
POWER PLANT
Fuel System
Flight Crew Operating Manual
CSP A--013
MASTER
Engine Indication (N2) <MST>
Figure 20---50---5
Red Tick Mark
(99.3%)
Green
(78 to 99.2%)
Amber
(Wing anti--ice off) (Wing anti--ice on) (0 to 77.9%)
Red
(99.3%)
Green
(0 to 99.2%)
N2 Core Vibration
Message (Icon)
Displayed when N2
vibration > 1.7 MILS.
Primary Page
<0039>
<0006>
REV 56, Jan 31/03
Vol. 1 20--50--10
POWER PLANT
Fuel System
Flight Crew Operating Manual MASTER
CSP A--013
Automatic Performance Reserve (APR) <MST>
Figure 20---50---6
APR icon (L, R
engine) (green)
Comes on when engine
is in an APR condition.
ENG ECU (L, R) FAIL
Status (white)
Comes on to indicate
that APR relay has
energized but APR
circuit is not triggered.
APR TEST (1, 2) OK
Advisory (green)
Comes on to indicate
successful test of DCU
and APR circuits.
ENG TYPE MISCOMP
Status (white)
Comes on to indicate
that there is a DCU
miscompare.
APR ECU FAIL (L, R)
Status (white)
Comes on to indicate
that APR relay has
energized but APR
circuit is not triggered.
APR CMD SET
Caution (amber)
Comes on to indicate
that both engines are
inadvertently at APR
power. Both N1
gauges indicate APR
icon and
corresponding N1
increase.
APR INOP Caution
(amber)
Comes on to indicate
one of the following:
APR has failed
system tests, or
APR has failed
during flight, or
APR is not armed
during take--off or
Engine speed
switches are not on.
Primary Page
<0006> APR INOP Caution
(amber)
Comes on to indicate
one of the following:
APR has failed,
or
APR switch is
selected off.
<0039>
Status Page
<0039>
DCU APR (1, 2)
FAIL Status (white)
Comes on to indicate
that APR relay has not
energized during test.
<0039>
<0039>
DCU APR (1, 2, 3)
FAIL Status (white)
Comes on to indicate
that APR relay has not
energized during test.
<0019>
<0005>
APR TEST (1, 2, 3) OK
Advisory (green)
Comes on to indicate
successful test of DCU
and APR circuits.
<0019>
<0039>
Vol. 1 20--50--11
REV 56, Jan 31/03
POWER PLANT
Fuel System
Flight Crew Operating Manual
CSP A--013
MASTER
Engine Indication (N1 Bug) <MST>
Figure 20---50---7
TAKEOFF N1
POINTER AND
READOUT (cyan)
Comes on when the
airplane is on the
ground in a takeoff or
landing configuration.
Removed from the
display when the
airplane is at cruise
altitude or when the
airplane lands.
Pointer and readout
values set at EICAS
MENU page.
N1 bug must be manually
reset for go--around.
N1 bug comes on during
flap or gear extension.
NOTE
N1 REFERENCE Line
Accessed through
UP/DN keys on
EICAS control panel.
Values set by slewing
through digits (using
UP/DN) and
confirming each digit
with SEL switch.
Cursor will go to
ACCEPT line and
prompt message will
appear if entry is not
within 76 to 98.5.
SEL switch used to
confirm entry.
CANCEL line used to
cancel edit.
Values entered will
be displayed on
primary page when
conditions are met.
EICAS MENU PAGE
Displayed when MENU
key on EICAS control
panel is pressed.
N1 REFERENCE
READOUT
Green -- Active
and/or preset data
that may be
displayed on primary
page.
Cyan -- Data being
edited.
White -- Inactive/
default data.
Readout defaults to
last entered data.
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