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A330/A340<br />
FLIGHT CREW<br />
OPERATING MANUAL<br />
<strong>AIRCRAFT</strong> <strong>SYSTEMS</strong><br />
AUTO FLIGHT - FLIGHT GUIDANCE<br />
AUTOTHRUST<br />
CAUTION If the flight crew pushes and holds one instinctive disconnect pb for more than<br />
15 s, the A/THR system is disconnected for the remainder of the flight. All A/THR<br />
functions including ALPHA FLOOR are lost, and they can be recovered only at the<br />
next FMGEC power-up (on ground).<br />
Applicable to: MSN 0022<br />
BELOW 100 FT RADIO ALTITUDE<br />
When the radio altitude is below 100 ft and the flight crew sets all thrust levers above the CL<br />
detent or one above the MCT detent, the autothrust will disconnect. It will rearm automatically<br />
when at least one of the thrust levers is set to TOGA.<br />
If the PF sets the thrust levers above CL detent but below TOGA and comes back to CL detent,<br />
the A/THR will disconnect and remain disconnected. As a result, the thrust will increase up to<br />
CLIMB thrust. The flight crew has to manually set the appropriate thrust for landing (or go-around).<br />
Applicable to: ALL<br />
THRUST LOCK FUNCTION<br />
The THRUST LOCK function is activated when the thrust levers are in the CL detent (or the MCT<br />
detent with one engine out), and:<br />
‐ The flight crew pushes the A/THR pb on the FCU, or<br />
‐ The A/THR disconnects due to a failure.<br />
The thrust is locked or frozen at its level prior to disconnection. Moving the thrust levers out of the CL<br />
or MCT detent suppresses the thrust lock, and reverts to manual control.<br />
When the thrust lock function is active :<br />
‐ “THR LK” flashes amber on the FMA<br />
‐ ECAM “ENG THRUST LOCKED” flashes every 5 s<br />
‐ ECAM displays “THR LEVERS......MOVE”<br />
‐ A single chime sounds and the Master Caution light flashes every 5 s.<br />
All warnings cease when the flight crew moves the thrust levers out of the detent.<br />
RJA A330/A340 FLEET DSC-22_30-90 P 11/22<br />
FCOM ← E to F 03 MAY 11