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THRUST REDUCTION ALTITUDE
Applicable to: ALL
At the thrust reduction altitude, “LVR CLB” flashes on the FMA. When manual flying, lower slightly the nose, as applicable, to anticipate the pitch down FD order. Bring the thrust levers back to CLB detent. The A/THR is now active (A/THR on the FMA changes from blue to white).
The FD pitch down order depends upon the amount of thrust decrease between TOGA or FLX and CLB.
If takeoff was performed packs OFF, the packs will be selected back to ON after thrust reduction because of the potential resulting EGT increase. They will be preferably selected sequentially to improve passengers’ comfort.
ACCELERATION ALTITUDE
Applicable to: ALL
At the acceleration altitude, the FD pitch mode changes from SRS to CLB or OP CLB mode.
The speed target jumps:
? Either to the managed target speed (eg; speed constraint, speed limit or ECON climb speed),
? Or to the preselected climb speed (entered by the pilot on PERF CLB page before takeoff).
If green dot speed is higher than the managed target speed (eg: 250 kt speed limit) displayed by a magenta triangle on the PFD speed scale, the AP/FD will guide the aircraft to green dot (as per the general managed speed guidance rule). If required by ATC, the crew will select the adequate target speed (below green dot) on the FCU.
During takeoff phase, F and S speeds are the minimum speeds for retracting the surfaces:
? At F speed, the aircraft accelerating (positive speed trend): retract to 1.
? At S speed, the aircraft accelerating (positive speed trend): retract to 0.
If the engine start selector had been selected to IGN START for take-off, the PNF should confirm with the PF when it may be deselected.
NORMAL OPERATIONS
TAKEOFF
TAKEOFF AT HEAVY WEIGHT
Applicable to: ALL
If takeoff is carried out at heavy weight, the maneuvring speed F may be close to VFE Conf 2 and S speed is above VFE Conf1+F.
In this case, three protections may intervene:
? The Flap Load Relief System (FLRS)
? The Automatic Retraction System (ARS)
? The alpha Lock function
THE FLAP LOAD RELIEF SYSTEM
When IAS reaches VFE, the FLRS is activated. It retracts automatically the flaps to the next further retracted lever position. Typically, this may occur in CONF 2, when F speed is close to VFE CONF2.
In this case, VFE is unchanged on PFD speed scale. (Displayed VFE remains VFE CONF 2 in accordance with the flap lever position). "RELIEF" is displayed on the E/WD Flap/Slat indication. As the aircraft accelerates above F speed, the flap lever can be selected to 1. If IAS decreases below VFE, the flaps will re-extend.
THE AUTOMATIC RETRACTION SYSTEM
While in Conf 1+F and IAS reaches 200 kt (215 kt for the A340-500 or -600), the ARS is activated. The ARS automatically retracts flaps to 0°. The VFE displayed on the PFD change from VFE CONF1+F to VFE CONF1. As the aircraft accelerates above S speed, the flap lever can be selected to 0. If IAS decreases below 200 kt (215 kt for the A340-500 or -600), the flaps will not extend back to 1+F.
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A330/A340 机组训练手册 FCTM Flight Crew Training Manual 1(48)
