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and various fuel requirements. The FMGS uses this data to compute predictions
and fuel planning parameters.
The flight crew has access to the INIT A page only in the preflight phase.
INIT B page (not accessible after engine start) is called up by pressing the "NEXT
PAGE" key.
DATA Calls up the data index page. This gives the flight crew access to various
reference pages that show aircraft position, aircraft status, runways, waypoints,
navaids, routes, and data stored by the flight crew.
F-PLN Calls up the flight plan A and B pages, which contain a leg-by-leg description of
the active primary flight plan.
The flight crew can use the slewing keys to review the entire active flight plan.
They can make all lateral and vertical revisions to the flight plan through these
pages, using the left LSKs for lateral revision and the right keys for vertical
revision.
RAD NAV Calls up the radio navigation page. This page displays the Radio Navaids tuned
automatically or manually through the FMGC.
FUEL PRED Calls up the fuel prediction page. Once the engines are started, this page
displays the fuel predicted to be remaining at the destination and the alternate, as
well as fuel management data.
SEC F-PLN Calls up the index page for the secondary flight plan. The flight crew can use
this page to call up the secondary flight plan and all the functions related to it
(copying, deleting, reviewing, activating, and the INIT and PERF pages).
ATC COMM Calls up the ATC applications (not activated).
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - GENERAL
PILOT INTERFACE - MCDU
A318/A319/A320/A321 FLEET DSC-22_10-40-10 P 19/22
FCOM 19 AUG 10
MCDU MENU Calls up the MCDU MENU page, which displays the subsystems currently
addressed via the MCDU. The key next to the name of a subsystem enables the
flight crew to select that subsystem.
When the MCDU MENU annunciator lights up, the flight crew should press the
MCDU MENU key. The menu will have [REQ] displayed next to the name of the
subsystem that requires attention.
Applicable to:
,
,
MSN,,
4538,,
MCDU FUNCTION KEYS
The function keys on the Multipurpose Control and Display Units allow the flight crew to call up
MCDU pages quickly.
The following is a summary of the purpose of each key:
DIR Calls up the DIR TO page, and enables the flight crew to proceed directly from
the present position to any waypoint, entered manually or selected in the active
flight plan.
PROG Calls up the progress page corresponding to the phase of the active flight plan
that is in progress.
This page displays navigation information and active data such as the optimum
and maximum recommended cruise flight levels. It enables the flight crew to
update the FMGS position and to obtain a bearing and distance to any location.
PERF Calls up the performance pages, that display the optimum speed or Mach number
for each phase. The flight crew can amend these pages. The first page to be
displayed is the one corresponding to the current flight phase (except for preflight
and done phases).
The flight crew can then use the appropriate 6L or 6R LSK to call up pages
corresponding to future flight phases.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - GENERAL
PILOT INTERFACE - MCDU
A318/A319/A320/A321 FLEET DSC-22_10-40-10 P 20/22
FCOM 19 AUG 10
INIT Calls up the flight plan initialization (INIT) A page, that also gives access to
the INIT B page and the IRS INIT page. The flight crew uses the INIT pages to
initialize the Flight Management System for the flight.
The flight crew uses the INIT A page to initialize the flight plan, set the departure
and arrival airports, and the main flight parameters (for example, cruise FL, Cost
Index).
The IRS INIT page enables the alignment of the Inertial Reference System (IRS).
The flight crew then uses the INIT B page to insert the aircraft weight, block fuel,
Center of Gravity (CG), and other fuel requirements. The FMGS uses this data to
compute predictions and other fuel planning parameters.
The INIT A page is accessed in pre-flight phase to initialize the flight plan. It can
also be accessed in flight. The IRS INIT page is accessed via the “IRS INIT”
prompt on the INIT A page. The INIT B page is accessed from the INIT A page,
by pressing the “←” or “→” scroll keys. It can only be accessed in the pre-flight
phase; pressing the scroll keys in flight will revert to the FUEL PRED page.
DATA Calls up the data index page. This gives the flight crew access to various
　
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