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A330/A340<br />
FLIGHT CREW<br />
OPERATING MANUAL<br />
Applicable to: MSN 0014-0043<br />
GENERAL<br />
<strong>AIRCRAFT</strong> <strong>SYSTEMS</strong><br />
AUTO FLIGHT - FLIGHT GUIDANCE<br />
A/THR ACTIVATION<br />
AUTOTHRUST<br />
A/THR is active when it controls thrust or speed. The thrust levers position determines the<br />
maximum thrust that the A/THR system can command (except in α-floor condition).<br />
The A/THR being armed, is activated when the flight crew sets the thrust levers between the:<br />
‐ CL and IDLE detents (all engines operative)<br />
‐ MCT and IDLE detents (one engine inoperative).<br />
The A/THR being disconnected, is activated when the flight crew pushes the A/THR pb on the<br />
FCU while the thrust levers are within the active range, including the IDLE position.<br />
Note: When the flight crew sets all thrust levers to the IDLE position, A/THR disconnects.<br />
However, if the flight crew pushes the A/THR pb on the FCU, the autothrust will be<br />
simultaneously armed and activated. Due to the thrust levers's position, IDLE thrust will<br />
be maintained.<br />
When ALPHA FLOOR is activated, regardless of the initial A/THR status and position of the thrust<br />
levers, the A/THR activates.<br />
When A/THR is active:<br />
‐ The FCU’s A/THR pb lights up<br />
‐ The FMA displays A/THR mode in green (in the first column) and "A/THR" in white (in the fifth<br />
column).<br />
Applicable to: MSN 0970-1002<br />
GENERAL<br />
A/THR is active when it controls thrust or speed. The thrust levers position determines the<br />
maximum thrust that the A/THR system can command (except in α-floor condition).<br />
RJA A330/A340 FLEET DSC-22_30-90 P 7/22<br />
FCOM D → 03 MAY 11