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TITLE (white) “VERT REV AT [location]”
The second line shows the remaining fuel and the extra fuel at the
waypoint being revised.
[ 1L ] “TOO STEEP PATH
BEYOND” (amber)
Is displayed, if the waypoint is part of a leg with a descent path too
steep .
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
CONTROLS AND INDICATORS - MCDU - PAGE DESCRIPTION
A318/A319/A320/A321 FLEET DSC-22_20-50-10-28 P 43/126
FCOM 19 AUG 10
[ 2L ] CLB/DES SPD LIM
(magenta)
Displays the speed limit applicable to the climb or descent phase. It is
in large font when entered manually, and in small font when it comes
from the database. It is in yellow, when a temporary flight plan exists.
[ 3L ] SPD CSTR (magenta) This field displays any speed constraint assigned to the revised
waypoint. It is in large font when entered manually, and in small font
when it comes from the database.
It is not displayed at the origin airport, at a FROM waypoint, at a speed
limit pseudo-waypoint, or at the destination airport. It is in yellow, when
a temporary F-PLN exists.
A CLR action reverts it to brackets.
[ 4L ] CONSTANT MACH This prompt provides access to the CONSTANT MACH page.
[ 5L ] WIND DATA (white) This prompt is only displayed for climb, cruise and descent waypoints,
respectively giving access to the CLIMB, CRUISE and DESCENT
WIND pages for wind data at the revised point.
[ 6L ] RETURN or TMPY
F-PLN or ← CLB
The pilot presses this key to return to the last displayed flight plan page.
When a temporary flight plan exists, the TMPY F-PLN prompt appears
and provides access to this page.
When “← CLB” displayed, pressing this key assigns the constraint to
CLB phase and inserts it into the vertical flight plan.
[ 2R ] RTA This prompt provides access to the Required Time Arrival (RTA) page.
It is not displayed when the VERT REV page is accessed from the
alternate F-PLN.
[ 3R ] ALT CSTR (magenta) This field displays the altitude constraint assigned to this revised
waypoint.
It is in large font when the constraint is manually-entered, and in small
font when it comes from the database.
A CLR action reverts it to brackets.
The constraint may be :
• “At”, entered as XXXXX (Example : FL 180).
• “At or above”, entered as + XXXXX or XXXXX + (Example :
FL + 310).
• “At or below”, entered as – XXXXX or XXXXX – (Example : -5 000).
• A “window” constraint.
The altitude window consists of two altitudes within which the aircraft
should fly. The crew cannot manually enter a “window” constraint. It
is in yellow when a temporary flight plan exists.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
CONTROLS AND INDICATORS - MCDU - PAGE DESCRIPTION
A318/A319/A320/A321 FLEET DSC-22_20-50-10-28 P 44/126
FCOM 19 AUG 10
G/S INTCP (green) This field displays the glide intercept altitude for an ILS approach on the
vertical revision page at destination. It cannot be modified by the pilot.
[ 4R ] ALT ERROR (green) When the aircraft misses a predicted altitude constraint, this field
displays the difference between the altitude constraint and the
predicted altitude.
If, for example, “- 500” appears in this field in green, the aircraft will
reach the waypoint at an altitude 500 ft below the constraint altitude.
This only applies to waypoints in the climb and descent phases.
[ 5R ] STEP ALTS (white) This legend appears for any waypoint, once a cruise altitude has
been entered. It is not available in engine-out, descent, approach, and
go-around phases.
This gives the pilot access to the STEP ALTS page.
[ 6R ] DES → When this field displays “DES”, pressing this key assigns the
constraints to the descent phase and inserts them into the vertical flight
plan. (See note below).
Note: Altitude and speed constraints may apply to the climb, descent, or approach phase, but
never to the cruise phase. The 6L/6R fields display “CLB/DES” when the revised waypoint
is a cruise phase waypoint, and the FMGS needs to know if the new constraint is to be
applied in climb or descent phase. The FMGS will modify the cruise phase accordingly.
These 2 prompts also display “CLB/DES” when the predictions are not computed. (Top of
climb and top of descent not yet defined).
STEP ALTS PAGE
Applicable to:
,
,
MSN,,
4538,,
This page enables the pilot to insert up to four geographic step points and one optimal step point into
　
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