AIRCRAFT SYSTEMS - e-Crew

A330/A340
FLIGHT CREW
OPERATING MANUAL
Applicable to: MSN 0970-1002
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT GUIDANCE
MODE REVERSIONS
MODE REVERSIONS (SUMMARY)
REVERSION DUE TO FCU ALTITUDE CHANGES
CONDITIONS ACTION CONSEQUENCE
OP CLB engaged
CLB engaged
FCU selected altitude set below A/C altitude V/S-FPA engages on current V/S-FPA
OP DES engaged
DES engaged
FCU selected altitude set above A/C altitude
ALT* active FCU selected altitude modification (greater than
250 ft)
REVERSION DUE TO THE LOSS OF NAV MODE
CONDITIONS EVENT CONSEQUENCE
CLB engaged Loss of lateral managed mode: NAV OP CLB engages
DES engaged
V/S engages
SPEED PROTECTION WHEN FD ORDERS ARE NOT FOLLOWED BY THE FLIGHT CREW (AP
NOT ENGAGED)
CONDITIONS EVENT CONSEQUENCE
‐ FD engaged only (no AP) and
‐ OP DES or DES engaged
‐ A/THR active (IDLE thrust)
‐ FD engaged only (no AP) and
‐ OP CLB or CLB engaged
‐ A/THR active (CLIMB thrust)
IAS = VLS-2
(if speedbrakes are
extended between VLS-2
and VLS-19)
IAS = VMAX+4
VMAX = VFE or VLE or
VMO/MMO
SPEED PROTECTION DUE TO EXCESSIVE V/S
FD bars disappear.
If A/THR active, automatic engagement of SPEED mode
on the A/THR.
Thrust increases to recover the speed target.
FD bars disappear.
If A/THR active, automatic engagement of SPEED mode
on the A/THR.
Thrust decreases to recover the speed target.
CONDITIONS EVENT CONSEQUENCE
Excessive V/S or FPA selected in IAS = VLS
The selected V/S (or FPA) target is temporarily
climb
(or VLS-5, if target = VLS)
abandoned to maintain VLS in climb, or VMAX
‐
IAS = VMAX
Excessive V/S or FPA selected
in descent, and
in descent.
‐ Clean configuration
‐ Excessive V/S or FPA