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information to detect coarse initialization errors.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
SUPPLEMENTARY PROCEDURES
NAVIGATION
A318/A319/A320/A321 FLEET PRO-SUP-34 P 16/28
FCOM 19 AUG 10
If any of the 3 ADIRS indicates an alignment error, the prompt REALIGN IRS appears on the INIT
page (instead of ALIGN IRS).
If the IR FAULT light flashes,
the affected ADIRS can only be used in ATT mode.
Applicable to:
ALIGNMENT/INITIALIZATION ERROR
The ADIRS keeps a record of the last position it had the last time it was in NAV mode. It is
also able to estimate the present latitude after a complete alignment. The ADIRS may use this
information to detect coarse initialization errors.
If the pilot manually initializes the ADIRS, and a GPS position is available, the GPS position is
used to crosscheck the pilot entry.
If any of the 3 ADIRS indicates an alignment error, the prompt REALIGN IRS appears on the INIT
page (instead of ALIGN IRS).
If the IR FAULT light flashes,
the affected ADIRS can only be used in ATT mode.
Applicable to:
,
,
MSN,,,,
ALIGNMENT/INITIALIZATION ERROR
The ADIRS keeps a record of the last position it had the last time it was in NAV mode. It is
also able to estimate the present latitude after a complete alignment. The ADIRS may use this
information to detect coarse initialization errors.
If the pilot manually initializes the ADIRS, and a GPS position is available, the GPS position is
used to crosscheck the pilot entry.
If any of the 3 ADIRS detects an alignment or initialization error, the prompt ALIGN ON REF is
displayed on the IRS INIT page. If the flight crew has previously entered a REF position and the
MCDU scratchpad messages REF/GPS POS DIFF or REF/LAST IRS POS DIFF are displayed,
the flight crew has to reenter the REF position. When the REF position is entered again, the
prompt ALIGN ON REF is displayed on the IRS INIT page.
If the IR FAULT light flashes,
the affected ADIRS can only be used in ATT mode.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
SUPPLEMENTARY PROCEDURES
NAVIGATION
A318/A319/A320/A321 FLEET PRO-SUP-34 P 17/28
FCOM 19 AUG 10
Applicable to:
SHUTDOWN
Mode selectors...........................................................................................................................OFF
Pull and turn the 3 mode selectors to OFF.
The message screen displays REALN DESN 5 SEC (realign decision) for 5 s, then a 5 s
countdown to off (OFF TIME 5 s displayed). Flight crew must not pull the circuit breakers until the
final countdown is completed.
Applicable to:
STATUS MESSAGES
Status messages appear, when the DISPLAY DATA switch is set to STS. If there is more than one
condition calling for a message, the display scrolls to the next message every 2 s.
MESSAGE DESCRIPTION
STS IR FAULT Hard failure. Select ATT (if corresponding message is displayed) or
refer to MMEL or remove ADIRU for maintenance.
STS-DELAY MAINT Failure not affecting IR functioning. Service ADIRU when convenient.
STS-ENTER PPOS Enter present position or check entered position is correct.
Note: The confirmation of an erroneous longitude at the present
position entry will create a wrong position of the aircraft
symbol on the NDs.
STS-SELECT ATT Hard IRU failure, select ATT mode.
STS-EXCESS MOTION Excess motion detected during alignment. ADIRU will automatically
restart alignment. Ensure aircraft is not moving.
STS-SWITCH ADR ADR invalid.
STS-CHECK CK/BK Check circuit breakers (1)
STS-CDU FAULT Remove CDU for maintenance.
STS-ENT MAG HDG Enter magnetic heading.
(1) If a corresponding FAULT light comes on, check BAT 1 load.
TCAS
Applicable to: ALL
GENERAL
For System Description, Refer to DSC-34-80-10 GENERAL.
For Operational Procedures, Refer to STLO-ABN-34-I NAV TCAS FAULT.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
SUPPLEMENTARY PROCEDURES
NAVIGATION
A318/A319/A320/A321 FLEET PRO-SUP-34 P 18/28
FCOM 19 AUG 10
CONFLICT RESOLUTION PRINCIPLES
‐ Traffic Advisory (TA)
If an intruder represents a potential collision threat, a visual and aural Traffic Advisory will be
given. This advisory helps the crew to visually situate the intruder. It also prepares the crew for
a possible Resolution Advisory. However, not every RA is preceded by a TA.
‐ Resolution Advisory (RA)
If the intruder is considered to be a real collision threat, an aural and visual Resolution Advisory
is given.
TCAS determines the optimum vertical maneuver that ensures effective separation, with a
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A320机组操作手册FLIGHT CREW OPERATING MANUAL 14(95)
