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on for a few seconds at the beginning of the alignment but not for a fast realignment.
Note: If, when the aircraft is on the ground, at least one ADIRU is supplied by aircraft
batteries :
‐ an external horn sounds
‐ The ADIRU light comes on amber on the SERVICE INTERPHONE BAY panel.
PEDESTAL
Applicable to: ALL
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
NAVIGATION
ADIRS - CONTROLS AND INDICATORS
A330/A340 FLEET DSC-34-10-20 P 3/4
FCOM 19 AUG 10
(1) ATT HDG and AIR DATA sel
NORM : ADIRU 1 supplies data to PFD1, ND1, DDRMI and ATC 1.
ADIRU 2 supplies data to PFD2, ND2 and ATC2.
CAPT ON
3
: ADR 3 or IR 3 replaces ADR 1 or IR 1.
F/O ON 3 : ADR 3 or IR 3 replaces ADR 2 or IR 2.
MAIN INSTRUMENTS PANEL
Applicable to: ALL
At high latitude above 82.5 ° North or 60.5 ° South (or entering the north magnetic polar region :
latitude 73.5 ° N and longitude between 117.5 ° W and 92.5 °W) the ADIRUs replace magnetic
heading by true heading on EFIS and DDRMI.
In addition the GRID track appears on ND. When the aircraft is in close proximity to these regions
(latitude above 82 ° North or 60 ° South or approaching the north polar region : 73 ° N and longitude
between 90 ° W and 120 ° W) the ADIRU will trigger a message on ND “SELECT TRUE REF”
requesting to change north reference.
(1) NORTH REF pb sw
TRUE
(in)
: Pressing this pushbutton selects the true heading for instrument display.
TRUE light comes on blue. The ND displays GRID track values if position is
above 65 ° N or S.
MAG
(out)
: Magnetic heading is selected.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
NAVIGATION
ADIRS - CONTROLS AND INDICATORS
Intentionally left blank
A330/A340 FLEET DSC-34-10-20 P 4/4
FCOM 19 AUG 10
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
NAVIGATION
ADIRS - WARNINGS AND CAUTIONS
A330/A340 FLEET DSC-34-10-30 P 1/4
FCOM 19 AUG 10
WARNINGS AND CAUTIONS
Applicable to:
E/WD : FAILURE TITLE
conditions
AURAL
WARNING
MASTER
LIGHT
SD PAGE
CALLED
LOCAL
WARNING
FLT PHASE
INHIB
STALL WARNING (No ECAM message)
An aural stall warning triggers, when the AOA is
greater than a predetermined angle. This angle
depends on the :
‐ the Slats/Flap position
‐ the Speed/Mach
‐ the F/CTL law (normal, alternate/direct)
Cricket
+ STALL
(synthetic
voice)
OVERSPEED
‐ VMO/MMO (the aircraft speed/mach is
greater than VMO +4 kt/MMO + 0.006)
‐ VLE (the aircraft speed is greater than
VLE+4 kt with L/G not uplocked or L/G doors
not closed).
‐ VFE (the aircraft speed is greater than VFE
+4 kt with slats or/and flaps extended).
CRC
MASTER
WARN NIL NIL
ADR 1(2)(3) FAULT
ADR 1+2 (1+3)(2+3) FAULT
ADR
FAULT lt 1, 4, 8, 10
IR 1(2)(3) FAULT 1, 4, 5,
7, 8, 10
IR 1+2 (1+3)(2+3) FAULT
IR FAULT lt
1, 4, 8, 10
HDG DISCREPANCY
The difference between the heading on the
CAPT and F/O displays is greater than 5 ° in
TRUE, or than 7 ° in MAG
CHECK
HDG (on ND
and PFD)
ATT DISCREPANCY
The difference between the roll or pitch angle,
displayed on the CAPT and F/O PFD greater
than 5 °
SINGLE
CHIME
MASTER
CAUT
NIL
CHECK ATT
(on PFD)
4, 8
To be continued on next page
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
NAVIGATION
ADIRS - WARNINGS AND CAUTIONS
A330/A340 FLEET DSC-34-10-30 P 2/4
FCOM 19 AUG 10
Continued from previous page
E/WD : FAILURE TITLE
conditions
AURAL
WARNING
MASTER
LIGHT
SD PAGE
CALLED
LOCAL
WARNING
FLT PHASE
INHIB
ALTI DISCREPANCY
The difference between the altitude displayed on
theCAPT and F/O PFD is greater than :
500, ft, if ‐ baro ref STD is selected.
‐ 250 ft, if QNH is selected.
CHECK ALT
(on PFD)
EXTREME LATITUDE
Aircraft enters a polar area, and the crew must
select a true reference.
4, 5, 7, 8
BARO REF DISCREPANCY
Discrepancy between F/O and Captain baro ref. 3, 4, 8
IR NOT ALIGNED
Problem detected during IR alignment. NIL
FM/IR POS DISAGREE
Discrepancy between the a/c position, computed
by the FMs and given by IRs
1, 2, 3, 4, 5,
7, 8, 9, 10
IAS DISCREPANCY
Caution activated when there is a discrepancy
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A330/A340机组操作手册 FLIGHT CREW OPERATING MANUAL FCOM 3(117)
