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controllability at aft CG.
As there is no automatic trim, the pilot has to use manual trim.
The “USE MAN PITCH TRIM” amber message is displayed on the PFD.
All protections are inoperative.
The􀀃α􀀃floor􀀃function􀀃is􀀃inoperative.􀀃
As per alternate law, overspeed and stall warnings are available.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FLIGHT CONTROLS
FLIGHT CONTROL SYSTEM - RECONFIGURATION CONTROL LAWS
A330/A340 FLEET DSC-27-20-20-30 P 2/4
FCOM 19 AUG 10
RECONFIGURATION CONTROL LAWS - PFD DISPLAY
Applicable to:
(1) Bank angle and pitch limitation is replaced by an amber X.
(2) Overspeed protection symbol (=) disappears.
(3)􀀃Vα􀀃prot􀀃and􀀃Vα􀀃max􀀃are􀀃replaced􀀃by􀀃Vsw.􀀃
(4) USE MAN PITCH TRIM (amber) displayed in direct law, or in flare law without RA.
(5) MAN PITCH TRIM ONLY (red) displayed, if a L + R elevator fault is detected.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FLIGHT CONTROLS
FLIGHT CONTROL SYSTEM - RECONFIGURATION CONTROL LAWS
A330/A340 FLEET DSC-27-20-20-30 P 3/4
FCOM 19 AUG 10
RECONFIGURATION CONTROL LAWS - PFD DISPLAY
Applicable to: ,
(1) Bank angle and pitch limitation is replaced by an amber X.
(2) Overspeed protection symbol (=) disappears.
(3)􀀃Vα􀀃prot􀀃and􀀃Vα􀀃max􀀃are􀀃replaced􀀃by􀀃Vsw.􀀃
(4) USE MAN PITCH TRIM (amber) displayed in direct law, or in flare law without RA.
(5) MAN PITCH TRIM ONLY (red) displayed, if a L + R elevator fault is detected.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FLIGHT CONTROLS
FLIGHT CONTROL SYSTEM - RECONFIGURATION CONTROL LAWS
Intentionally left blank
A330/A340 FLEET DSC-27-20-20-30 P 4/4
FCOM 19 AUG 10
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FLIGHT CONTROLS
FLIGHT CONTROL SYSTEM - RECONFIGURATION CONTROL LAWS
A330/A340 FLEET DSC-27-20-20-40 P 1/2
FCOM 19 AUG 10
ABNORMAL ATTITUDE LAWS
GENERAL
Applicable to: ALL
An abnormal attitude law in pitch and roll is provided, if the aircraft is in flight and in any of these
conditions :
Pitch attitude > 50 ‐ ° nose up or 30 ° nose down
‐ Bank angle > 125 °
‐ Angle of attack > 30 ° or < -10 °
‐ Speed > 440 kt or < 60 kt
‐ Mach > 0.96 or < 0.1
The law in pitch is the alternate law without protection (except load factor protection) and without
auto trim. In roll, it is a full authority direct law with yaw alternate.
After recovery, the flight controls laws are :
In pitch : Alternate law.
In roll : Direct law with yaw alternate law.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FLIGHT CONTROLS
FLIGHT CONTROL SYSTEM - RECONFIGURATION CONTROL LAWS
Intentionally left blank
A330/A340 FLEET DSC-27-20-20-40 P 2/2
FCOM 19 AUG 10
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FLIGHT CONTROLS
FLIGHT CONTROL SYSTEM - RECONFIGURATION CONTROL LAWS
A330/A340 FLEET DSC-27-20-20-50 P 1/2
FCOM 19 AUG 10
MECHANICAL BACK UP
GENERAL
Applicable to: ALL
To control the aircraft during a temporary complete loss of electrical power.
PITCH
Applicable to: ALL
Pitch mechanical control is achieved through the THS, using manual trim control.
«MAN PITCH TRIM ONLY» is displayed in red on the PFDs.
LATERAL
Applicable to:
Lateral mechanical control is achieved through the rudder using pedals.
Dutch roll damping is provided by the back up yaw damper unit (BYDU).
LATERAL
Applicable to: ,
The Backup Control Module (BCM) computer provides yaw damping and direct rudder command
with pedals. This computer includes its own electrical generator, supplied by the B or Y hydraulic
system.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FLIGHT CONTROLS
FLIGHT CONTROL SYSTEM - RECONFIGURATION CONTROL LAWS
Intentionally left blank
A330/A340 FLEET DSC-27-20-20-50 P 2/2
FCOM 19 AUG 10
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
FLIGHT CONTROLS
FLIGHT CONTROL SYSTEM - CONTROLS AND INDICATORS
A330/A340 FLEET DSC-27-20-30 P 1/22
FCOM 19 AUG 10
PEDESTAL
Applicable to:
(1) RUD TRIM selector
Controls the rudder trim actuator, which moves the neutral point of the artificial feel by an
equivalent of :
　
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