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OTHER FUNCTIONS - CLEAR KEY (CLEARING FUNCTION)
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FCOM 19 AUG 10
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
OTHER FUNCTIONS - ENGINE OUT
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FCOM 19 AUG 10
GENERAL
Applicable to: ALL
When the FMGS detects an engine-out condition, the following occurs :
FLIGHT MANAGEMENT PART
Applicable to: ALL
The managed target speeds are immediately set to a value that ‐ depends upon the flight phase.
‐ The system automatically calls up the current performance page, which has the E.O. CLR
(engine-out clear) prompt, displayed in the 1R field (except during takeoff, before the diversion
point is reached).
If the pilot presses the E.O. CLR key, the all engine operative predictions and performance will
be restored. Reverting to one engine-out performance again is not possible, unless the system
detects a new E.O. condition. Therefore, the pilot should not press the E.O. CLR key, if an actual
engine-out is detected.
‐ The PROG page shows the recommended engine-out maximum (E.O. REC MAX) altitude.
‐ All preselected speeds, entered in the MCDU, are deleted. The crew can re-enter preselected
speeds.
‐ Step climb (or step descent), if entered, is deleted.
‐ The time constraint is deleted.
FLIGHT GUIDANCE PART
Applicable to: ALL
‐ All selected modes remain available (the “HDG/TRK”, “V/S”, and “OPEN” modes, for example).
‐ In the Speed Reference System (SRS) mode, the takeoff speed is the highest of V2 and current
speed, but no more than V2 + 15. The Go-around speed target is VAPP, or the current speed if
higher, but limited to VLS + 15 kt.
‐ The system limits Autopilot (AP) and Flight Director (FD) bank angles during the takeoff and
approach phases, as follows :
• 15 ° when the aircraft speed is below maneuvering speeds (F, S, or Green Dot speed), -10 kt
• Then linear increase to 25 ° up to maneuvering speeds (F, S, or Green Dot speed) -3 kt
• 25 ° above maneuvering speeds (F, S, or Green dot speed) -3 kt.
AUTOTHRUST
Applicable to: ALL
The system extends the active range of the active engine from idle to maximum continuous thrust
(MCT instead of CL thrust).
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
OTHER FUNCTIONS - ENGINE OUT
A330/A340 FLEET DSC-22_20-60-40 P 2/10
FCOM 19 AUG 10
The Flight Mode Annunciator requests maximum continuous thrust on the live engine, at a time that
depends on when the engine-out occurs.
Note: Refer to STLO-22_30_R-90 A/THR MODE REVERSION for Alpha Floor inhibition in
engine-out.
ENGINE OUT CONDITIONS
Applicable to: ALL
The FMGS considers the aircraft to be in an engine-out condition, when one of the following
conditions is present, and the aircraft has started the takeoff, or is in flight :
‐ One engine master switch is off, or
‐ N2 (or N3 for Rolls Royce engines) is below idle, or
‐ One Thrust Lever Angle (TLA) is below 5 °, and the TLA of at least one other engine is above 5 °,
or
‐ The FADEC shows an engine fault.
ENGINE-OUT SID OPERATIONS
Applicable to: ALL
An Engine-Out Standard Instrument Departure (EOSID), when defined in the database, is always
for a specific runway. It is indicated on the bottom line of the SID page for that runway, and it can be
manually selected.
The pilot can review the SID by either selecting the PLAN mode on the navigation display (solid
yellow line), or by selecting it on the SID page. In the latter case, the navigation display shows the
SID as a temporary flight plan.
The last point, if any, that is common to the SID and Engine-Out SID is called the Diversion Point
(DP).
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
OTHER FUNCTIONS - ENGINE OUT
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FCOM 19 AUG 10
WHEN AN ENGINE-OUT CONDITION OCCURS BEFORE THE DIVERSION POINT
The MCDU automatically shows the engine-out SID as a temporary flight plan on the F-PLN page
and on the ND. The EOSID can be inserted or erased.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
OTHER FUNCTIONS - ENGINE OUT
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FCOM 19 AUG 10
WHEN AN ENGINE-OUT CONDITION OCCURS AFTER THE DIVERSION POINT
The navigation display shows the engine-out SID as a yellow line for your information. If
necessary :
SELECT “DIR TO” a waypoint on the engine-out SID flight plan
　
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