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[ 1L ] ACT MODE This field displays the active speed target (MANAGED or SELECTED). The
flight crew cannot modify it through this field.
[ 2L ] CI This field displays the cost index, as initialized on the INIT A page or
defaulted from the database, or inserted in this field by the flight crew. The
flight crew cannot modify it when the descent phase is active.
[ 3L ] MANAGED If the descent phase is not active :
Before the flight crew makes any entry. This field displays MANAGED
in white, with the associated ECON descent Mach or speed in blue. The
crew may overwrite the ECON descent Mach or speed by entering a Mach
number or a speed in this field. The system uses the pilot entry to compute
the descent profile. The descent may be flown in managed using this new
pilot entry.
The entry is modifiable. It can be cleared to revert to ECON speed/Mach
If the descent phase is active :
The flight crew cannot make an entry in this field.
The field displays the ECON speed/Mach or the speed/Mach value
previously entered by the pilot.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
CONTROLS AND INDICATORS - MCDU - PAGE DESCRIPTION
A330/A340 FLEET DSC-22_20-50-10-25 P 100/124
FCOM 19 AUG 10
[ 4L ] blank or [ 4L ]
MACH/SPD
If the descent phase is not active, this field is blank.
If the descent phase is active :
The field displays the speed or Mach target manually selected by the pilot.
“SELECTED” is displayed in the [ 1L ] field.
To modify the field value, the pilot will use the SPD/MACH selector knob of
the FCU. [ 4L ] field and FCU window will display the same value.
Pushing in the FCU speed selector knob activates the managed SPD/MACH
target displayed in the [ 3L ] field.
[ 5L ] Blank or [ 5L ]
EXPEDITE
If the descent phase is not active this field is blank.
Displays this legend if the descent phase is active.
It indicates the time and distance required to reach the altitude displayed in
the 2R field at MMO/VMO speed.
[ 6L ] PREV PHASE
or ACTIVATE APPR
PHASE
This key calls up the cruise phase page if the descent phase is not yet
active.
Displays if the descent phase is active. First press causes “CONFIRM APPR
PHASE” to be displayed. Second press activates the approach phase.
[ 1R ] TIME/UTC DEST EFOB
Before takeoff, this field displays the flight time to destination and the
predicted remaining fuel on board. If the crew enters an estimated takeoff
time, the field displays automatically the predicted arrival time (UTC) at
destination.
After takeoff, it displays the predicted arrival time at destination (UTC) and
the remaining fuel on board.
[ 2R ] PRED TO... This field displays the target altitude for the predictions in [ 3R ] [ 4R ], or
[ 5R ] .
The display defaults to the altitude selected on the FCU. The flight crew can
modify it to any altitude lower than present altitude.
[ 3R ] These fields display altitude predictions down to the target altitude selected
in [ 2R ], computed for the current vertical mode (DES or OP DES) and the
indicated target speed.
[ 3R ] field : shows predictions for the “MANAGED” SPD/MACH profile.
[ 4R ] [ 5R ] [ 4R ] field : displays predictions for a SPD/MACH.
[ 5R ] field : displays predictions for a descent at MMO/VMO (EXPEDITE).
Fields [ 3R ] [ 4R ] [ 5R ] are displayed only when DES phase is
[ 6R ] NEXT PHASE The pilot presses this key to call up the PERF APPR page.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
CONTROLS AND INDICATORS - MCDU - PAGE DESCRIPTION
A330/A340 FLEET DSC-22_20-50-10-25 P 101/124
FCOM 19 AUG 10
PERF APPR PAGE
Applicable to: ,
TITLE APPR in a white large font if the approach phase is not active, in a green
large font if it is.
[ 1L ] QNH This field displays brackets when the aircraft is more than 180 nm from the
destination. Inside 180 nm, a mandatory amber box appears. The pilot must
enter the QRH, either in hPa (three or four digits) or in inches of mercury
(two digits, decimal point, and two more digits).
The system interprets :
1 003 as 1 003 hPa
29.92 as 29.92 inches of mercury
The pilot can modify this entry at any time.
The system uses QNH to compute the cabin repressurization segment.
[ 2L ] TEMP This field displays the temperature at destination. Until the pilot enters the
temperature, the field displays brackets. The pilot can modify this figure.
The system uses this temperature to refine its computation of the descent
profile (ISA model).
A330/A340 FLIGHT CREW
　
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