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‐ If the flight crew pushes the LOC pb (LOC mode arms if an ILS is selected and HDG-V/S or
TRK-FPA modes engage)
‐ If the flight crew pulls out the HDG/TRK knob, the FMGS reverts to HDG-V/S or TRK-FPA basic
modes
‐ If the flight crew engages V/S or FPA mode, FINAL and APP NAV modes disengage and
HDG-V/S or TRK-FPA basic modes engage
‐ Automatically at MDA (MDH) -50 ft, or 400 ft AGL if no MDA/MDH is entered
‐ When the GO AROUND mode engages.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT GUIDANCE
AP/FD COMMON MODES - APPROACH
A318/A319/A320/A321 FLEET DSC-22_30-80-30-20 P 7/8
FCOM 19 AUG 10
DISENGAGEMENT CONDITIONS
Applicable to:
,
,
MSN,,,,
The FINAL and APP NAV modes disengage:
‐ If the flight crew pushes the APPR pb (HDG-V/S or TRK-FPA modes engage)
‐ If the flight crew pushes the LOC pb (LOC mode arms if an ILS is selected and HDG-V/S or
TRK-FPA modes engage)
‐ If the flight crew pulls out the HDG/TRK knob, the FMGS reverts to HDG-V/S or TRK-FPA basic
modes
‐ Automatically at MDA (MDH) -50 ft, or 400 ft AGL if no MDA/MDH is entered
‐ When the GO AROUND mode engages.
Note: If the flight crew engages V/S or FPA mode, only FINAL mode disengages. APP NAV mode
remains engaged.
GUIDANCE
Applicable to:
,
,
MSN
The FINAL mode guides the aircraft on the vertical profile down to the MDA (or MDH if QFE pin
program ).
The FINAL mode does the following:
‐ Displays a vertical deviation scale (± 200 ft) on the PFD and a VDEV symbol showing deviation
from descent path
Anticipates leaving the altitude selected by the FCU when ‐ the aircraft reaches the Continue
Descent symbol (blue arrow on the ND)
‐ Gives precise vertical guidance on the descent and final path with an internal vertical speed
limitation to avoid excessive V/S.
If the autopilot is engaged while you are using the APP NAV/ FINAL modes, it disengages
automatically at MDA (or MDH) -50 ft.
FD modes revert to HDG-V/S or TRK-FPA basic modes.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT GUIDANCE
AP/FD COMMON MODES - APPROACH
A318/A319/A320/A321 FLEET DSC-22_30-80-30-20 P 8/8
FCOM 19 AUG 10
GUIDANCE
Applicable to:
MSN,,,
The FINAL mode guides the aircraft on the vertical profile down to the MDA (or MDH if QFE pin
program ).
The FINAL mode does the following:
‐ Displays, on the PFD, a lateral deviation scale (± 0.2 nm) and a lateral symbol (index) showing
deviation from the lateral trajectory. When the lateral deviation is greater than 0.2 nm, half index is
displayed on the scale limit
‐ Displays a vertical deviation scale (± 200 ft) on the PFD and a VDEV symbol showing deviation
from descent path
‐ Anticipates leaving the altitude selected by the FCU when the aircraft reaches the Continue
Descent symbol (blue arrow on the ND)
‐ Gives precise vertical guidance on the descent and final path with an internal vertical speed
limitation to avoid excessive V/S.
If the autopilot is engaged while you are using the APP NAV/ FINAL modes, it disengages
automatically at MDA (or MDH) -50 ft.
FD modes revert to HDG-V/S or TRK-FPA basic modes.
WARNING
Applicable to:
,
,
MSN,,,,
If during a non-ILS approach, the GPS PRIMARY function is lost, a triple click aural warning is
triggered.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT GUIDANCE
AP/FD COMMON MODES - GO AROUND (GA)
A318/A319/A320/A321 FLEET DSC-22_30-80-40 P 1/4
FCOM 19 AUG 10
GENERAL
Applicable to:
Go-around mode combines the Speed Reference System (SRS) vertical mode with the GA TRK
lateral mode.
GENERAL
Applicable to:
,
,
MSN,,,,
When the flight crew performs a go-around, the Speed Reference System (SRS) vertical guidance
mode automatically engages.
In addition:
The NAV mode is automatically engaged or armed, ‐ except if HDG/TRK was preset, or
‐ The GA TRK lateral mode is automatically engaged until the HDG/TRK knob is pulled if the
HDG/TRK mode is preset.
Note: Below 100 ft , the HDG/TRK mode remains engaged with NAV mode armed if HDG/TRK
was already engaged during approach.
ENGAGEMENT CONDITIONS
Applicable to:
Setting at least one thrust lever to the TOGA detent engages both SRS/GA TRK modes, if:
‐ The flaps lever is at least in position 1, and
‐ The aircraft is in flight, or
‐ The aircraft has been on ground for less than 30 s (AP disengages and can be re-engaged 5 s
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A320机组操作手册FLIGHT CREW OPERATING MANUAL 2(109)
