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AIR CONDITIONING MENU Abnormal Operation(B) 10/23
The next step in this example, after checking with the
other pilot, is to clear ECAM.
No. Press either CLR key.
AIR CONDITIONING MENU
Abnormal Operation(B) 11/23
Because this was just a crew awareness and no action
was required by the crew, no STATUS page is displayed.
The CRUISE page is now displayed and the CLEAR lights
are out. The ECAM procedure for a trim air fault is
complete.
AIR CONDITIONING MENU
Abnormal Operation(B) 12/23
Now, let’s look at some other Abnormal indications
associated with the Air Conditioning system.
AIR CONDITIONING MENU
Abnormal Operation(B) 13/23
Should an ECAM or QRH procedure require the use of
the RAM AIR switch it is operated by lifting the
guarded flap and pushing the switch.
Select the RAM AIR switch.
AIR CONDITIONING MENU Abnormal Operation(B) 14/23
Should an ECAM or QRH procedure require the use of
the RAM AIR switch it is operated by lifting the
guarded flap and pushing the switch.
No. Lift the guard and press the RAM AIR sw.
AIR CONDITIONING MENU Abnormal Operation(B) 15/23
Should an ECAM or QRH procedure require the use of
the RAM AIR switch it is operated by lifting the
guarded flap and pushing the switch.
No. Lift the guard and press the RAM AIR sw.
AIR CONDITIONING MENU
Abnormal Operation(B) 16/23
An ON light illuminates in the switch, the valve will
open and the indication on the ECAM BLEED page will
change to show this.
Note that ECAM procedures normally call for the aircraft to
be below FL100/Minimum En-route Altitude before
operating the RAM Air valve, since the aircraft will
depressurise.
Let’s look at another abnormal indication.
AIR CONDITIONING MENU
Abnormal Operation(B) 17/23
The HOT AIR FAULT light illuminates amber when a
duct overheat is detected. If this occurs the hot air
pressure regulating valve and the trim air valves
automatically close.
AIR CONDITIONING MENU
Abnormal Operation(B) 18/23
If a fault in a cabin re-circulation fan is detected the
Cabin FAN indication is displayed in amber.
AIR CONDITIONING MENU
Abnormal Operation(B) 19/23
Zone Control
Computer
The Zone Control Computer, with two channels,
normally operates without any indications to the pilots.
However, should a fault occur there are back up modes
of operation with associated indications.
CHANNEL
1
CHANNEL
2
Zone Control
Computer
AIR CONDITIONING MENU
Abnormal Operation(B) 20/23
In the first case, should a primary channel failure
occur the secondary channel takes over, and
optimized temperature regulation is lost. An ALTN
MODE message appears and the HOT AIR and TRIM
AIR valves close.
CHANNEL
1
CHANNEL
2
Zone Control
Computer
INOP
AIR CONDITIONING MENU
Abnormal Operation(B) 21/23
On the STATUS page you are advised that the Cabin
zone is at a fixed temperature.
AIR CONDITIONING MENU
Abnormal Operation(B) 22/23
In the second case if a dual channel failure occurs
there is no zone temperature regulation.
The packs deliver a fixed temperature and the message
PACK REG appears on the ECAM COND page.
Notice also that there are no indications of zone or
duct temperature.
CHANNEL
1
CHANNEL
2
Zone Control
Computer
INOP
INOP
AIR CONDITIONING MENU
Abnormal Operation(B) 23/23 NEXT
On the STATUS page you are advised that the packs
are delivering air at a fixed temperature.
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AIR CONDITIONING MENU Abnormal Operation(B) 24/23
LLIISSTTOOFFSSUUBBJJEECCTTSS
TTRRIIMMAAIIRRVVAALLVVEEFFAAUULLTT
OOTTHHEERRFFAAIILLUURREEIINNDDIICCAATTIIOONNSS
EXIT
AUDIO GLOSSARY FCOM
RETURN
PRESSURIZATION MENU Abnormal Operation (A) 1/47
PRESSURIZATION MENU
Abnormal Operation (A) 2/47
This is an example of an abnormal procedure. We will
use a CABIN PRESSURE FAULT where one of the two
automatic systems fails. At this time, the aircraft is in
cruise and all systems are functioning normally.
You are the PNF.
PRESSURIZATION MENU
Abnormal Operation (A) 3/47
SYS 1 SYS 2
When the ECAM system detects a failure, the
appropriate caution is generated and the ECAM CAB
PRESS system page is automatically called.
PRESSURIZATION MENU
Abnormal Operation (A) 4/47
Due to the fact that this is only a crew awareness, there
was no Master Caution.
SYS 1 SYS 2
PRESSURIZATION MENU
　
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