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appearance of AP1 (or 2) on the PFD’s FMA.
AP DISENGAGEMENT
Applicable to:
,
,
MSN,,,,
AP1 or 2 disengages when:
‐ The flight crew presses the takeover pb on the sidestick
‐ The flight crew presses the corresponding AP pb on the FCU
‐ The flight crew pushes on the sidestick harder than a certain threshold, or moves on the rudder
pedals above a threshold
‐ The flight crew moves the pitch trim wheel beyond a certain threshold
‐ The other AP is engaged, except when localizer/glideslope modes are armed or engaged, or when
the rollout or go-around mode is engaged
‐ Both thrust levers are set above the MCT detent and the aircraft is on ground
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT GUIDANCE
AUTOPILOT (AP)
A318/A319/A320/A321 FLEET DSC-22_30-30 P 4/6
FCOM 19 AUG 10
‐ In a non-precision approach, with FINAL APP mode engaged, the aircraft reaches:
• The MDA/MDH -50 ft (if entered), or 400 ft AGL (if no MDA/MDH is entered), or
• The Missed Approach Point (MAP), depending on which one comes first.
‐ One of the engagement conditions is lost.
Furthermore, in normal law with all protections available, the AP will disconnect if:
‐ High speed protection is active
‐ Angle-of-attack protection is active (α prot +1 ° is reached)
‐ Pitch attitude exceeds 25 ° up, or 13 ° down, or bank angle exceeds 45 °
‐ A rudder pedal deflection is more than 10 ° out of trim.
The standard way for the flight crew to disengage the AP is to press the takeover pb on the sidestick.
When the AP is OFF, the associated FCU pushbutton goes off, and AP1 (or AP2) disappears from
the PFD’s FMA.
AP WARNINGS
Applicable to: ALL
When the AP is disengaged, the system warns the flight crew:
If the flight crew disengages it with the takeover pb on the sidestick, ‐ the warnings are temporary
‐ If the disengagement results from a failure, from the flight crew pushing the pushbutton on the
FCU, or from a force on the sidestick, the visual and audio warnings are continual.
AP DISENGAGEMENT
TAKEOVER pb
on SIDESTICK BY OTHER MEANS
MASTER
WARNING light Flashing red during 3 s maximum Flashing red
ECAM AP OFF red message
9 s maximum AUTO FLT AP OFF red warning
AUDIO
Cavalry charge
0.5 s minimum
1.5 s maximum
Continuous cavalry charge
1.5 s minimum
CONSEQUENCE
CLR pb on
ECAM CONTROL
PANEL
Extinguished Illuminated
ACTION MASTER
WARNING light
‐ Extinguishes Master Warning
light
‐ Erases ECAM warning
‐ Stops audio if pressed within
1.5 s
‐ Extinguishes Master Warning light
‐ Stops audio after 1.5 s
To be continued on next page
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT GUIDANCE
AUTOPILOT (AP)
A318/A319/A320/A321 FLEET DSC-22_30-30 P 5/6
FCOM 19 AUG 10
Continued from previous page
AP DISENGAGEMENT
TAKEOVER pb
on SIDESTICK BY OTHER MEANS
CLR pb on
ECAM CONTROL
PANEL
No effect
‐ Extinguishes CLR pb
‐ Erases ECAM message
‐ Calls status
TAKEOVER pb
‐ Extinguishes Master Warning
light
‐ Erases ECAM warning
‐ Stops audio if pressed within
1.5 s
‐ Extinguishes Master Warning light
‐ Stops audio after 1.5 s
ECAM STATUS MESSAGE NO YES
AUTOLAND WARNING
Applicable to: ALL
The autoland red warning flashes in LAND mode when the radio altitude goes below 200 ft and:
‐ The aircraft gets too far off the beam (LOC or GLIDE), or
‐ Both glide slope transmitters or receivers fail, or
‐ Both localizer transmitters or receivers fail, or
‐ The difference between both radio altimeter indications is greater than 15 ft, or
‐ Both autopilots fail.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT GUIDANCE
AUTOPILOT (AP)
Intentionally left blank
A318/A319/A320/A321 FLEET DSC-22_30-30 P 6/6
FCOM 19 AUG 10
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT GUIDANCE
SPEED/MACH CONTROL
A318/A319/A320/A321 FLEET DSC-22_30-40 P 1/6
FCOM 19 AUG 10
GENERAL
Applicable to: ALL
In flight, either the AP/FD pitch control, or autothrust may acquire and hold a target speed or Mach
number, depending on the engaged modes.
Speed control is:
‐ Managed when the target comes from the FMGS
Selected when the target comes ‐ from the SPD/MACH FCU window.
　
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