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The detection function is available at :
‐ Takeoff, from 3 s after lift-off, up to 1 300 ft RA,
‐ Landing, from 1 300 ft RA, down to 50 ft RA,
provided the aircraft is not in clean configuration.
lt remains displayed at least 15 s after windshear detection.
Associated with an aural “WINDSHEAR” warning, which is repeated 3
times.
W/S AHEAD : Predictive windshear warning. Displayed, when a windshear alert is
generated by the predictive windshear system below 1 500 ft RA.
The color depends on the alert level.
Three different alert levels exist, depending on windshear strength and
proximity :
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
INDICATING/RECORDING
INDICATIONS ON PFD
A330/A340 FLEET DSC-31-40 P 44/48
FCOM 19 AUG 10
Alert Level AuralWarning PFD
ND (Refer to DSC-31-45
PREDICTIVE
WINDSHEAR SYSTEM)
Warning (Landing) "GO AROUND
WINDSHEAR AHEAD" W/S AHEAD (red) Windshear icon
Warning (Takeoff) "WINDSHEAR
AHEAD" (twice) W/S AHEAD (red) Windshear icon
Caution "MONITOR
RADAR DISPLAY" W/S AHEAD (amber) Windshear icon
Advisory Nil Nil Windshear icon
Note: 1. All flags, except SI, V1 INOP, DME 1 (which are steady), flash for 9 s then are
steady.
DH flag flashes for 3 s, then is steady.
2. For TCAS, Refer to DSC-34-80-10 TCAS MODES.
(23) DME 1 flag (red)
When DME distance is not available, a DME 1 (on PFD 1) or DME 2 (on PFD 2) replaces the
DME distance indication.
(24) ILS flag (red)
If an ILS frequency is not available, or if either the LOC or G/S signals fail, an ILS flag replaces
the ILS frequency indication.
BACKUP SPEED/ALTITUDE SCALE
Applicable to: ,
A backup speed scale and a backup altitude scale replace simultaneously the normal speed and
altitude scales when all the three ADRs are switched OFF. This enables the flight crew to fly at a safe
speed and altitude in case of an unreliable speed/altitude indication.
The backup speed scale information is based on the angle–of–attack, and depends on the slat/flap
configuration.
The backup altitude scale displays the GPS altitude.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
INDICATING/RECORDING
INDICATIONS ON PFD
A330/A340 FLEET DSC-31-40 P 45/48
FCOM 19 AUG 10
(1) Red FAST area :
The red FAST area indicates the excessive speed range.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
INDICATING/RECORDING
INDICATIONS ON PFD
A330/A340 FLEET DSC-31-40 P 46/48
FCOM 19 AUG 10
(2) Amber area :
The amber area indicates the excessive speed range while keeping an appropriate margin to
the maximum structural speeds.
(3) GREEN area :
The green area indicates the safe speed range.
(4) Target speed (green) :
This symbol indicates the optimum target speed.
During the approach, it indicates the target speed for the approach.
(5) Actual Speed Reference Line (Yellow) :
This fixed reference line next to a yellow triangle, indicates the aircraft’s current speed.
(6) Amber area :
This amber area indicates too low speed while keeping an appropriate margin to the stall
speed.
(7) Red SLOW area :
This red area indicates the speeds that are lower than the stall speed.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
INDICATING/RECORDING
INDICATIONS ON PFD
A330/A340 FLEET DSC-31-40 P 47/48
FCOM 19 AUG 10
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
INDICATING/RECORDING
INDICATIONS ON PFD
A330/A340 FLEET DSC-31-40 P 48/48
FCOM 19 AUG 10
(1) GPS ALT flag (White) :
This flag appears to highlight the fact that the barometric altitude is replaced by the GPS
altitude.
(2) Altitude indication :
Amber dashes are displayed over the last two digits to indicate a degraded altitude display
mode.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
INDICATING/RECORDING
INDICATIONS ON ND
A330/A340 FLEET DSC-31-45 P 1/30
FCOM 19 AUG 10
GENERAL
Applicable to:
There are six different displays (five display navigation information, and one displays primary engine
parameters) :
‐ ROSE LS
‐ ROSE VOR
‐ ROSE NAV
‐ ARC
‐ PLAN
‐ ENG (standby page)
The Navigation Display (ND) can provide a weather radar image in all modes, except PLAN.
Note: In case avionics ventilation is not sufficient (e.g. due to a blower and extract fan failure),
and the Navigation Display (ND) Unit temperature exceeds a defined threshold, the ND will
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A330/A340机组操作手册 FLIGHT CREW OPERATING MANUAL FCOM 3(76)
