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FCOM 19 AUG 10
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
FLIGHT PLANNING - LATERAL FUNCTIONS
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FCOM 19 AUG 10
FMS LEGACY
GENERAL
Applicable to:
The lateral revision function allows the pilot to create or modify the following parts of the flight plan :
‐ airway
‐ waypoint
‐ new destination
‐ holding pattern
‐ offset
‐ alternate
Each time the pilot activates one the revisions listed above, he accesses to a temporary flight plan
that allows to check the modification before inserting it in the active flight plan. The pilot selects
these functions by pressing the left line select key on F-PLN A or B.
Direct to and overfly functions are accessed through MCDU ‐ keys. No temporary flight plan is
created with these functions.
‐ “Update at” capability is a specific function that manually update the FM position. It does not use a
temporary flight plan, but the crew must confirm the insertion before it is activated.
GENERAL
Applicable to:
TEMPORARY F-PLN (TMPY)
Applicable to:
When a pilot makes a lateral revision to the F-PLN, the FMGS creates a temporary flight plan. This is
a copy of the active F-PLN, but is corrected by the lateral revision in progress.
The aircraft continues to follow the active F-PLN until the temporary revision is inserted.
The revision appears in yellow characters on both MCDUs and NDs.
‐ Lateral and vertical revisions cannot be made to a temporary F-PLN.
‐ Only one temporary F-PLN may be accessed at a time.
‐ The “DIRECT TO” function, when used, erases a temporary F-PLN.
‐ When a DIR TO is in process, a temporary revision cannot be displayed on the other MCDU.
‐ A TMPY F-PLN changes the title of the flight plan pages. (TMPY appears in all titles).
‐ No predictions are computed for a temporary flight plan (Dashes are displayed).
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
FLIGHT PLANNING - LATERAL FUNCTIONS
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FCOM 19 AUG 10
Temporary data are displayed first in yellow (ND and MCDU). Once inserted they become active and
are displayed in green.
TEMPORARY F-PLN (TMPY)
Applicable to:
INSERTING AN AIRWAY WITH "VIA/GO TO"
Applicable to:
The pilot can insert into the active flight plan, an airway going from a revised waypoint to another
waypoint. If the end waypoint belongs to the active flight plan, the computer does the stringing
automatically. If the end waypoint does not belong to the flight plan, the computer leaves a
discontinuity between this waypoint and those farther along the active flight plan.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
FLIGHT PLANNING - LATERAL FUNCTIONS
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FCOM 19 AUG 10
SELECT the revised waypoint (here CDN).
WRITE the airway and the ending waypoint in the scratchpad (here UB19/PON).
PRESS [2R] to insert the airway and ending waypoint into the VIA/GO TO field.
The MCDU displays TMPY in yellow and lists the waypoints en route to the ending waypoint.
PRESS [6R] to insert the temporary flight plan. Clear the flight plan discontinuity as necessary.
Note: 1. If the revised waypoint or the end waypoint does not belong to the airway, the MCDU
displays the message “AWY/WPT MISMATCH”.
2. If two waypoints with the same ident belong to the same airway, the DUPLICATE
NAMES page will not be called and the system selects the first one in the database.
INSERTING AN AIRWAY WITH "VIA/GO TO"
Applicable to:
INSERTING A WAYPOINT
Applicable to:
The pilot can insert waypoints by two methods :
‐ directly into the flight plan. All modifications go directly into the active flight plan. No temporary
flight plan is created.
‐ by means of a lateral-revision “NEXT WAYPOINT”, a process that creates a temporary flight plan.
The second method allows to check the temporary flight plan before inserting it.
WAYPOINT IDENTIFICATION
The pilot can identify a waypoint by :
‐ Its identifier (if it is in the navigation data base)
‐ A Latitude/Longitude (LL)
‐ A Place/Bearing/Distance (PBD)
‐ A Place-Bearing/Place-Bearing (PBX)
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
　
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