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FWC1 SDAC1 SDAC2 FWC2
DMC1 DMC3 DMC2
The two identical Flight Warning
Computers (FWC) receive data from:
• the aircraft system sensors to
generate red Warnings,
• the SDAC to generate amber
Cautions.
ECAM MENU
Abnormal Operation 3/38
AIRCRAFT SYSTEM SENSORS
FWC1 SDAC1 SDAC2
DMC1 DMC3 DMC2
FWC2
The FWC then supply;
• the DMC for the display of alert
messages,
• the attention getters,
• and the loudspeakers for aural alerts
and synthetic voice messages.
ECAM MENU
Abnormal Operation 4/38
To begin we will look at what happens
when one or both Flight Warning Computers
fail. For a single FWC fault a caution message
will be displayed on the E/WD. Notice that
there are no blue action lines, so no crew
action is required. No system page is called
because there is no system page for EIS.
Clear FWS
FWS FWC 1 FAULT
ECAM MENU Abnormal Operation 5/38
To begin we will look at what happens
when one or both Flight Warning Computers
fail. For a single FWC fault a caution message
will be displayed on the E/WD. Notice that
there are no blue action lines, so no crew
action is required. No system page is called
because there is no system page for EIS.
Clear FWS
No. FWS FWC 1 FAULT
ECAM MENU Abnormal Operation 6/38
To begin we will look at what happens
when one or both Flight Warning Computers
fail. For a single FWC fault a caution message
will be displayed on the E/WD. Notice that
there are no blue action lines, so no crew
action is required. No system page is called
because there is no system page for EIS.
No. Clear FWS
No. Press a CLEAR key to clear FWS.
FWS FWC 1 FAULT
ECAM MENU
Abnormal Operation 7/38
On the STATUS page you will notice that
the aircraft's autoflight capability is
downgraded to CAT 3 SINGLE. The
inoperative systems are CAT 3 and FWC 1.
After a review of the STATUS page by both
pilots the ECAM procedure can be completed.
Clear STATUS
ECAM MENU Abnormal Operation 8/38
On the STATUS page you will notice that
the aircraft's autoflight capability is
downgraded to CAT 3 SINGLE. The
inoperative systems are CAT 3 and FWC 1.
After a review of the STATUS page by both
pilots the ECAM procedure can be completed.
Clear STATUS
On the STATUS page you will notice that
the aircraft's autoflight capability is
downgraded to CAT 3 SINGLE. The
inoperative systems are CAT 3 and FWC 1.
After a review of the STATUS page by both
pilots the ECAM procedure can be completed.
No. Clear STATUS
ECAM MENU Abnormal Operation 9/38
On the STATUS page you will notice that
the aircraft's autoflight capability is
downgraded to CAT 3 SINGLE. The
inoperative systems are CAT 3 and FWC 1.
After a review of the STATUS page by both
pilots the ECAM procedure can be completed.
No. Clear STATUS
No. Press a CLEAR key to clear
ECAM MENU
Abnormal Operation 10/38
The CRUISE page is displayed on the lower
ECAM screen and the ECAM control panel has
no lights on it.
A boxed STS reminder appears on the
E/WD to remind you that there is a message
on the STATUS page.
That has completed the procedure for a
FWC 1 fault.
STS
ECAM MENU
Abnormal Operation 11/38
As a result of the failure if any other
WARNING or CAUTION is generated, that
would light an indicator, you will notice that
only half of lights are illuminated. In this
example with a FWC 1 fault only the lower part
of the Captains’ indicators and the upper part
of the First Officers’ indicators are illuminated.
Note; if FWC2 had failed the lights would be
reversed.
FWC1 Fault
Captain First Officer
AUTO FLT AP OFF
ANTI ICE CAPT AOA
ECAM MENU
Abnormal Operation 12/38
The loss of both FWC will remove the
automatic monitoring of the aircraft systems.
A message and information, generated by a
DMC, is displayed at the bottom of the E/WD.
There will be no further ECAM Cautions or
Warnings, aural warnings, MASTER CAUTION
or MASTER WARNING lights.
INOP
INOP
AUTO FLT AP OFF
ANTI ICE CAPT AOA
INOP
ECAM MENU
Abnormal Operation 13/38
The action lines advise the pilots to monitor
the ECAM system pages and the overhead
panel for local warnings. Notice that there is a
NOT AVAIL list on the right hand side.
The NOT AVAIL items are:
• ECAM Warnings
• Altitude Alerts
• the STATUS page
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空客a320飞机概述2(2)
