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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 />
MODE REVERSIONS<br />
If disengagement of the NAV mode is not confirmed by one of the following actions within 5 s:<br />
‐ New FCU altitude target<br />
‐ Level-off<br />
‐ V/S selection<br />
then, the triple click aural warning sounds. The white box flashes around the vertical mode for<br />
additional 10 s.<br />
Applicable to: MSN 0014-0043<br />
MODE REVERSION DUE TO FCU ALTITUDE CHANGE<br />
When an OPEN mode is engaged, the aircraft climbs or descends towards the altitude set on the<br />
FCU. If the flight crew sets the FCU altitude to a target not compatible with the active open mode, a<br />
mode reversion occurs and V/S (or FPA) engages on current V/S (or FPA).<br />
This reversion applies to CLB, OP CLB, DES, OP DES.<br />
Example: Reversion from OP CLB to V/S:<br />
With ALT* engaged, if the target altitude is changed by any value greater than 250 ft, V/S (or FPA)<br />
engages on currents V/S (or FPA). Refer to DSC-22_30-75 Mode Reversions (Summary).<br />
RJA A330/A340 FLEET DSC-22_30-75 P 2/16<br />
FCOM ← B to C → 03 MAY 11
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