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VERTICAL SPEED/FLIGHT PATH ANGLE CONTROL KNOB / HEADING-V/S/TRACK-FPA SWITCHING PUSHBUTTON
TMUFM2004-P05 LEVEL 3
EFFECTIVITY 22-81-00 Page 11
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_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 22 AUTO FLIGHT SYSTEM
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FLIGHT CONTROL UNIT DESCRIPTION/OPERATION
AUTOPILOT 1 & 2 ENGAGEMENT PUSHBUTTONS
The autopilot 1 or 2 can be engaged five seconds after
lift off, by pressing the related pushbutton.
- PRESSED ON: Autopilot engagement is confirmed
by the three green bars coming on.
- PRESSED OFF: The related autopilot disengages.
AUTOTHRUST ENGAGEMENT PUSHBUTTON
When pressed on, the A/THR pushbutton manually engages
the autothrust function, provided the aircraft is not
on the ground with the engines running.
- PRESSED ON: Autothrust engagement is confirmed
by the three green bars coming on.
NOTE: On ground, autothrust is automatically engaged
when take-off is initiated with the thrust
levers.
- PRESSED OFF: The autothrust function
disengages.
TMUFM2004-T06 LEVEL 3
EFFECTIVITY 22-81-00 Page 12
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_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 22 AUTO FLIGHT SYSTEM
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FLIGHT CONTROL UNIT DESCRIPTION/OPERATION -
AUTOPILOT 1 & 2, AUTOTHRUST, EXPEDITE, APPROACH, LOCALIZER ENGAGEMENT PUSHBUTTONS
TMUFM2004-P06 LEVEL 3
EFFECTIVITY 22-81-00 Page 13
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_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 22 AUTO FLIGHT SYSTEM
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FLIGHT CONTROL UNIT DESCRIPTION/OPERATION
EXPEDITE ENGAGEMENT PUSHBUTTON
The expedite mode can be engaged either to climb or
descend, by pressing the EXPED pushbutton.
- PRESSED ON: The expedite engagement is
confirmed by the three green bars coming on.
This function allows maximum climb or descent
profile within the performance envelope of the
aircraft.
- Disengagement is only possible by engagement
of another longitudinal mode
NOTE: The expedite function can be optionally deleted.
In this case, the associated EXPED pushbutton
is also removed.
APPROACH ENGAGEMENT PUSHBUTTON
When pressed on, the APPR pushbutton arms the LAND
mode.
- PRESSED ON: Glide-Slope and localizer modes
are armed for capture and tracking if ILS is
available, or APPR NAV/FINAL if ILS is not
available.
- PRESSED OFF: Above 400 ft, LAND or APPR NAV
mode is disarmed or disengaged.
NOTE: Below 400 ft, LAND mode can only be disengaged
by activating GO-AROUND.
LOCALIZER ENGAGEMENT PUSHBUTTON
When pressed on, the LOC pushbutton arms the
localizer mode.
- PRESSED ON: Localizer mode is generally used
when the Glide-Slope is not available.
- PRESSED OFF:
- before capture, localizer mode is disarmed
- after capture, localizer mode is
disengaged.
In this case the HDG/TRK mode is engaged on
the present aircraft heading/track.
TMUFM2004-T06 LEVEL 3
EFFECTIVITY 22-81-00 Page 14
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_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 22 AUTO FLIGHT SYSTEM
UF94200
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TMUFM2004 LEVEL 3
EFFECTIVITY 22-81-00 Page 15
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_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 22 AUTO FLIGHT SYSTEM
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SELF EXAMINATION
During Take-Off and Go-Around, the speed window on
the FCU displays:
A - the speed manually inserted by the crew
into the FCU. The light is off.
B - the speed manually inserted by the crew
into the MCDU. The light is on.
C - dashes and the light is on = Managed
speed such as V2 or memorized VAPP are
automatically used by the FMGC.
The speed/Mach switching during a managed flight:
A - is automatic .
B - must be performed by the crew for the
climb phase only.
C - must be performed by the crew both for
the climb and the descent phases.
When NAVigation and the Vertical Speed modes are
active, what happens if the pilot presses the
HDG-V/S/TRK-FPA pushbutton?
A - The NAVigation mode remains active and
the FPA mode engages.
B - The track and FPA modes engage.
C - There is no effect.
Below 400 feet, during an ILS approach, the LAND
active mode:
A - can be de-activated by pressing the LOC
p/b.
B - can be de-activated by a GO-AROUND
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