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Abnormal Operation (A) 5/47
SYS 1 SYS 2
The failure message is read.
In the case of a CABIN PRESSURE SYSTEM 1 FAULT,
there is no action required by the crew. System two is
automatically activated and controls the outflow valve.
PRESSURIZATION MENU
Abnormal Operation (A) 6/47
After confirmation from the PF clear CAB PRESS.
Clear CAB PRESS.
SYS 1 SYS 2
PRESSURIZATION MENU Abnormal Operation (A) 7/47
After confirmation from the PF clear CAB PRESS.
SYS 1 SYS 2
No. Press either CLR key.
PRESSURIZATION MENU Abnormal Operation (A) 8/47
SYS 1 SYS 2
After confirmation from the PF clear CAB PRESS.
No. Press either CLR key.
PRESSURIZATION MENU
Abnormal Operation (A) 9/47
The status page is now displayed. There are no
approach procedures to follow and the inoperative
system is Cabin pressurization system 1.
PRESSURIZATION MENU
Abnormal Operation (A) 10/47
Once both pilots have reviewed the Status page, clear
the Status Page.
Clear STATUS.
PRESSURIZATION MENU Abnormal Operation (A) 11/47
Once both pilots have reviewed the Status page clear
the Status Page.
No. Press the STS key or either CLR key.
PRESSURIZATION MENU Abnormal Operation (A) 12/47
Once both pilots have reviewed the Status page clear
the Status Page.
No. Press the STS key or either CLR key.
PRESSURIZATION MENU
Abnormal Operation (A) 13/47
The STATUS page is replaced by the CRUISE page.
We have now completed the ECAM procedure for a
Cabin Pressure System 1 Fault.
PRESSURIZATION MENU
Abnormal Operation (A) 14/47
Let’s look at a second failure to illustrate the functionality
of the system, the associated indication, and the ECAM
procedure.
We will use a Dual System Fault to illustrate these
procedures.
The aircraft is in cruise at FL350.
PRESSURIZATION MENU Abnormal Operation (A) 15/47
PRESSURIZATION MENU Abnormal Operation (A) 16/47
PRESSURIZATION MENU
Abnormal Operation (A) 17/47
The ECAM system has generated a failure message,
with action lines, and called the ECAM CAB PRESS
page.
SYS 1 SYS 2
PRESSURIZATION MENU
Abnormal Operation (A) 18/47
SYS 1 SYS 2
Read the ECAM failure title and on the ECAM CAB
PRESS page observe the indications shown in amber.
PRESSURIZATION MENU
Abnormal Operation (A) 19/47
Read and complete the action items on the E/WD.
In this case, both automatic systems have failed, we
must switch to manual mode.
Notice that the MODE SEL switch has an amber FAULT
indication to help you locate it.
Switch to Manual Mode.
SYS 1 SYS 2
PRESSURIZATION MENU Abnormal Operation (A) 20/47
Read and complete the action items on the E/WD.
In this case, the first action is to position the Mode
Select Switch to manual mode.
Notice that the switch has an amber FAULT indication
to help you locate it.
No. Switch to Manual Mode.
SYS 1 SYS 2
PRESSURIZATION MENU Abnormal Operation (A) 21/47
Read and complete the action items on the E/WD.
In this case, the first action is to position the Mode
Select Switch to manual mode.
Notice that the switch has an amber FAULT indication
to help you locate it.
No. To switch to Manual Mode use the MODE SEL sw.
SYS 1 SYS 2
PRESSURIZATION MENU
Abnormal Operation (A) 22/47
SYS 1 SYS 2
MAN
The indication on the switch changes to show MAN in
white and a green MAN message appears on the system
page to indicate that the pressurization system is in
manual mode.
PRESSURIZATION MENU
Abnormal Operation (A) 23/47
SYS 1 SYS 2
MAN You must now control the pressurization of the aircraft
by using the MAN V/S CTL switch to move the outflow
valve.
Notice also that, since you have control of the outflow
valve, the Landing Elevation indication is no longer
displayed.
Let’s pause the ECAM procedure and look at the use of
the MAN V/S CTL.
PRESSURIZATION MENU
Abnormal Operation (A) 24/47
SYS 1 SYS 2
MAN
Click on the forward icon
The MAN Vertical Speed switch is spring loaded to
neutral.
If you hold the switch in the up position the Outflow
Valve slowly opens, the Vertical Speed will change, and
the Cabin Altitude will increase.
PRESSURIZATION MENU
Abnormal Operation (A) 25/47
SYS 1 SYS 2
MAN
Click on the forward icon
When the MAN V/S CTL is returned to the neutral
position the outflow valve will stop moving. The
Vertical speed will stabilize and the cabin altitude will
change.
PRESSURIZATION MENU
　
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