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PRESSURE
CABIN
PRESSURE
CABIN
PRESSURE
Vol. 1 08--60--3
ENVIRONMENTAL CONTROL SYSTEM
Pressurization System Sep 09/02
Flight Crew Operating Manual
CSP C--013--067
Pressurization Controls
Figure 08---60---2
Overhead Panel
Cabin Pressurization Control Panel
Vol. 1 08--60--4
ENVIRONMENTAL CONTROL SYSTEM
Pressurization System Sep 09/02
Flight Crew Operating Manual
CSP C--013--067
Pressurization EICAS Synoptic Page Message
Figure 08---60---3
Environmental Control
System Page
CPAM FAIL (white)
Indicates failure of cabin
pressure control panel
indication system.
AUTO PRESS 1 or 2
FAIL (white)
Indicates failure of
respective controller.
EMER DEPRESS (amber)
Indicates that emergency
depressurization has been
selected
Vol. 1 08--60--5
ENVIRONMENTAL CONTROL SYSTEM
Pressurization System Sep 09/02
Flight Crew Operating Manual
CSP C--013--067
Pressurization EICAS Synoptic Page Elements
Figure 08---60---4
CALT
Displays current cabin altitude
(100 foot increments).
Monitored data is displayed green and
active data is displayed white. Monitored
data will turn amber if altitude is above
8,500 feet and red if altitude is above
10,000 feet. Invalid data is displayed as
amber dashes.
LDG ELEV
Displays elevation in feet as set at LDG ELEV
selector (20 foot increments).
Displayed in cyan. Invalid data, elevations
above 15,000 feet and elevations below --2000
feet are displayed as amber dashes.
DELTA P
Displays cabin to ambient differential
pressure (0.1 psi increments).
Monitored data is displayed green and active
data is displayed white. Monitored data will
turn red if differential exceeds 8.6 psi. Invalid
data is displayed as amber dashes.
RATE
Displays rate of climb or descent in feet per
minute (100 fpm increments) and direction
via arrow symbol.
Monitored data is displayed green and active
data is displayed white. Invalid data is
displayed as amber dashes.
MONITORED DATA ACTIVE DATA
ECS
Vol. 1 08--60--6
ENVIRONMENTAL CONTROL SYSTEM
Pressurization System Sep 09/02
Flight Crew Operating Manual
CSP C--013--067
Pressurization EICAS Indications --- Primary Page <1001>
Figure 08---60---5
CABIN ALT warning (red)
Indicates that cabin altitude is
greater than 10,000 feet.
Accompanied by aural warning:
CABIN
PRESSURE
DIFF PRESS warning (red)
Indicates that differential
pressure is greater than 8.6 psi.
Accompanied by aural warning:
CABIN
PRESSURE
AUTO PRESS caution (amber)
Indicates that automatic
presurization control is inoperative.
CABIN ALT caution (amber)
Indicates that cabin altitude is
greater than 8,500 feet but not
greater than 10,000 feet.
EMER DEPRESS caution (amber)
Indicates that EMER DEPRESS
switch has been selected on.
ALT LIMITER caution (amber)
Indicates that altitude limitation
function is inoperative.
CABIN ALT
DIFF PRESS
AUTO PRESS
CABIN ALT
EMER DEPRESS
ALT LIMITER
Primary Page
500
UP UP UP
83.0
78.5
600
87.9
80.0
600
N1
ITT
N2
97
56
96
48
2.6
OIL TEMP
OIL PRESS
VIB
SLATS / FLAPS 33
GEAR
FAN
2.4
C ALT RATE P
500 4.0
BRT
OVBD COOL
Pressurization Readouts (manual mode)
Comes on when pressurization system is
operated in manual mode:
C ALT -- Displays current cabin altitude.
RATE -- Displays rate of climb or descent
in feet per minute and direction via arrow
symbol.
DP -- Displays cabin to ambient differential
pressure.
Landing Elevation readout is not displayed.
OVBD COOL caution (amber)
Ground valve failed OPEN,
in flight.
NOTE
Readouts removed from primary
page when automatic mode selected.
Vol. 1 08--60--7
ENVIRONMENTAL CONTROL SYSTEM
Pressurization System Sep 09/02
Flight Crew Operating Manual
CSP C--013--067
Pressurization EICAS Indications --- Status Page
Figure 08---60---6
AUTO PRESS 1 or 2 FAIL status (white)
Indicates that respective cabin pressure
controller is inoperative
CABIN PRESS MAN status (white)
Indicates that PRESS CONTROL
switch is selected to MAN.
CPAM FAIL status (white)
Indicates failure of cabin pressure
control panel indication system.
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