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This screen displays the list of systems affected by a failure or fault. If a system is affected by at least
a Class 3 fault, CLASS 3 appears beside it. The display is continuously updated.
SYSTEM REPORT/TEST
Applicable to: ALL
This screen gives the operator access to all electronic systems. The CFDIU enters into interactive
dialogue with the selected system.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
MAINTENANCE SYSTEM
SYSTEM OPERATION
A318/A319/A320/A321 FLEET DSC-45-20 P 10/16
FCOM 19 AUG 10
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
MAINTENANCE SYSTEM
SYSTEM OPERATION
A318/A319/A320/A321 FLEET DSC-45-20 P 11/16
FCOM 19 AUG 10
In the above example, the operator has called up menus of the selected systems :
LAST or PREVIOUS LEG ‐ REPORT presents the list of Line-Replaceable Units (LRUs) affected by
a failure.
‐ LRU IDENTIFICATION contains the part numbers of all LRUs in the system.
‐ GND SCANNING runs the flight monitoring on the ground and indicates the faulty LRU.
‐ CLASS 3 FAULTS lists class 3 faults detected by the system during the last flight leg.
‐ SYSTEM CONFIGURATION presents the system configuration in a digital form.
Note: These screens (except LAST or PREVIOUS LEG REPORT) are not shown above.
GMT/DATE INITIALIZATION
Applicable to: ALL
A CFDIU clock is synchronized with the cockpit clock in order to keep GMT (UTC) displayed on the
ECAM lower display (except in flight Phases 1 and 2, if the weight and balance system is installed). If
the cockpit clock fails, the CFDIU clock continues to display GMT (UTC) on the ECAM lower display.
If electrical power is interrupted for more than 200 ms, the crew initializes GMT (UTC) and the DATE
via the MCDU :
‐ Write GMT (UTC) in the scratchpad, then press the “INIT GMT” key.
‐ Do the same for the month and day.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
MAINTENANCE SYSTEM
SYSTEM OPERATION
A318/A319/A320/A321 FLEET DSC-45-20 P 12/16
FCOM 19 AUG 10
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
MAINTENANCE SYSTEM
SYSTEM OPERATION
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FCOM 19 AUG 10
BACK UP MODE
Applicable to:
If the CFDIU's main channel fails, the backup channel allows the CFDS to operate in backup mode :
‐ on the ground only
‐ through MCDU1
‐ in one mode of operation only : SYSTEM REPORT/TEST
‐ without the PRINTER or ACARS.
The system changes over from main channel to backup channel :
‐ Automatically in case of an important failure (power supply, for example). In this case, when the
operator selects CFDS on the MCDU MENU, it displays the BACKUP MODE page.
‐ Manually if the operator selects BACKUP MODE on the CFDS menu after a minor failure.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
MAINTENANCE SYSTEM
SYSTEM OPERATION
A318/A319/A320/A321 FLEET DSC-45-20 P 14/16
FCOM 19 AUG 10
BACK UP MODE
Applicable to:
,
,
MSN,,,,
If the CFDIU's main channel fails, the backup channel allows the CFDS to operate in backup mode :
‐ on the ground only
‐ through MCDU1 or MCDU3
‐ in one mode of operation only : SYSTEM REPORT/TEST
‐ without the PRINTER or ACARS.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
MAINTENANCE SYSTEM
SYSTEM OPERATION
A318/A319/A320/A321 FLEET DSC-45-20 P 15/16
FCOM 19 AUG 10
The system changes over from main channel to backup channel :
‐ Automatically in case of an important failure (power supply, for example). In this case, when the
operator selects CFDS on the MCDU MENU, it displays the BACKUP MODE page.
‐ Manually if the operator selects BACKUP MODE on the CFDS menu after a minor failure.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
MAINTENANCE SYSTEM
SYSTEM OPERATION
Intentionally left blank
A318/A319/A320/A321 FLEET DSC-45-20 P 16/16
FCOM 19 AUG 10
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
MAINTENANCE SYSTEM
DATA LOADING
A318/A319/A320/A321 FLEET DSC-45-25 P 1/2
FCOM 19 AUG 10
GENERAL
Applicable to:
,
,
MSN,,,,
With the data loading system, it is possible to upload databases and operational software, or to
download system reports from various onboard computers.
The data transfer is performed via 3.5 in disks and a portable data loader, or the aircraft fixed
Multipurpose Disk Drive Unit �� (MDDU).
　
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