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DEST UTC/TIME DIST, EFOB
DIST is the distance to destination along the displayed flight plan.
EFOB is the estimated fuel on board at destination.
The sixth line is permanent and is displayed in white font once predictions are
available, except when a TMPY F-PLN is displayed or in some cases when an
ALT CSTR is entered (“*CLB or DES*” prompt appears).
Note: The predicted altitude at a waypoint is related to the QNH below the transition altitude,
and is given as a flight level above the transition altitude.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
CONTROLS AND INDICATORS - MCDU - PAGE DESCRIPTION
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FCOM 19 AUG 10
The generic flight plan page displays the FROM waypoint (last waypoint to be overflown) on the
first line, and the TO waypoint (in white) on the second line. The FROM/TO flight plan leg is called
the active leg.
The flight crew can use the scroll keys to review all flight plan legs down to the last point of the
alternate flight plan. The AIRPORT key serves as a fast slew key. The pilot can press it to call up
the next airport (DEST, ALTN, ORIGIN) to be displayed on the flight plan page.
In order to return to the beginning of the flight plan page, the pilot presses the F-PLN key on the
MCDU console.
The display shows the name of the leg between two waypoints, and the distance between them on
a line between the lines that identify them. During an approach, this in-between line also defines
the angle of the final descent path. For example, “2-3 °” indicates that the leg is two nautical miles
long, and the flight path angle is -3 °.
The display shows the bearing between FROM and TO waypoints as the bearing from the aircraft
position to the TO waypoint. It shows track (TRK) between the waypoints shown in lines 2 and 3.
This is the outbound track of the next leg.
If the database contains a published missed approach procedure, or if someone has inserted one
manually, the display shows it in blue after the destination runway identification. It turns green
when the go-around phase becomes active.
After the last waypoint of the missed approach, the display shows the alternate flight plan in NAV
mode.
When NAV mode is engaged, the flight crew can only clear or modify the TO waypoint by using
the DIR key on the MCDU console.
PREDICTIONS
The system calculates and displays predictions for all waypoints.
It uses the current wind to compute TO waypoint predictions, and uses predicted winds to
compute all others.
CONSTRAINTS
The database may define an altitude and speed constraint for each waypoint of the climb,
descent, and approach phases, or the pilot may manually insert such constraints (except at
origin, destination, FROM, and pseudo-waypoints).
The constraints are displayed in magenta, as long as predictions are not completed.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
CONTROLS AND INDICATORS - MCDU - PAGE DESCRIPTION
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FCOM 19 AUG 10
Once predictions are available, constraints are replaced by speed and altitude predictions,
preceded by stars. If the star is in magenta, the system predicts that the aircraft will match the
constraint (altitude within 250 ft, speed not more than 10 kt above the constraints). If the star is
in amber, the system predicts that the aircraft will miss the constraint and the MCDU displays :
“SPD ERROR AT WPT”.
Note: SPD and ALT CSTR may either be entered on the VERT REV page or directly on the
F-PLN A page, whereas TIME CSTR may only be entered from the RTA page.
PSEUDO-WAYPOINTS
Pseudo-waypoints are geographical positions corresponding to an event in the vertical flight
plan : T/C (top of climb), T/D (top of descent), SPD/LIM (speed limit), DECEL (deceleration for
approach), etc. The display shows them as waypoints in parentheses.
APPROACH DISPLAY
The flight crew cannot enter an altitude constraint at destination or Missed Approach Point
(MAP).
FLIGHT PLAN B PAGE
This page displays fuel predictions and forecast winds at each waypoint.
The pilot calls it up by pressing the NEXT PAGE key when the FLIGHT PLAN A page is displayed.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
CONTROLS AND INDICATORS - MCDU - PAGE DESCRIPTION
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FCOM 19 AUG 10
TITLE FLIGHT NUMBER (blank if no flight number has been entered).
Line 1 WPT-EFOB-WIND
　
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