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EFFECTIVITY 34-10-00 Page 4
Apr 16/98
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 34 NAVIGATION
UF94200
EFFECTIVITY Page 86
ALL
34 - NAVIGATION
34-12-00 ADIRS ALIGNMENT THROUGH MCDU
CONTENTS:
ADIRS Alignment Through MCDU
TMUADIS01 LEVEL 3
EFFECTIVITY 34-12-00 Page 1
May 31/00
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 34 NAVIGATION
UF94200
EFFECTIVITY Page 87
ALL
ADIRS ALIGNMENT THROUGH MCDU
To perform the IRs alignment, select the FMGC then the
INIT key.
1. To perform the three Inertial Reference alignments,
the NAV position on the ADIRS CDU must be selected,
and then the aircraft Present Position (PPOS) has
to be entered.
To send Present Position (PPOS) you can either enter
a Company Route (CO RTE) or the Latitude (LAT) and
Longitude (LONG) or a FROM/TO.
We will here perform a FROM/TO insertion.
For example LSGG/LGAT:
- Departure from GENOVA,
- Arrival at ATHENS.
Use the keyboard to enter the LSGG/LGAT in the
scratchpad and then the LS key 1R to valid it in
the FROM/TO field.
2. The route corresponding to the chosen FROM/TO is
displayed on the MCDU.
In our example only one company route is available,
insert it by using LS key 6R.
3. The return to the INIT page is automatic after route
insertion.
Now the FROM airport position is given on the LAT
and LONG line. The ALIGN IRS prompt is displayed.
As this airport position is preset, it can be
modified according to the real aircraft position,
this explains the arrows displayed on the LAT line,
which indicate that the LAT can be changed using
the slew keys.
You can now initiate the 3 IRs alignment by pressing
3R key (ALIGN IRS). The present aircraft position
will be automatically sent to the 3 IRs.
4. ALIGN IRS message has disappeared and IR alignment
is now in progress (10 minutes).
ON ADIRS CDU, ALIGN annunciators will go off.
If ALIGN annunciators remain on or begin to flash
it means that the IR alignment phase is
unsuccessful.
NOTE: If the INIT page A was left without having aligned
the IRs, an IR ALIGN message will be displayed
in the scratchpad.
TMUADIS01-T01 LEVEL 3
EFFECTIVITY 34-12-00 Page 2
May 31/00
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 34 NAVIGATION
UF94200
EFFECTIVITY Page 88
ALL
TMUADIS01-P01 LEVEL 3
ADIRS ALIGNMENT THROUGH MCDU
EFFECTIVITY 34-12-00 Page 3
May 31/00
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 34 NAVIGATION
UF94200
EFFECTIVITY Page 89
ALL
THIS PAGE INTENTIONALLY LEFT BLANK
TMUADIS01 LEVEL 3
EFFECTIVITY 34-12-00 Page 4
May 31/00
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 34 NAVIGATION
UF94200
EFFECTIVITY Page 90
ALL
34 - NAVIGATION
34-12-00 ADIRS ALIGNMENT THROUGH CDU
CONTENTS:
ADIRS Alignment Through CDU
TMUNA1001 LEVEL 3
EFFECTIVITY 34-12-00 Page 1
Apr 16/98
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 34 NAVIGATION
UF94200
EFFECTIVITY Page 91
ALL
ADIRS ALIGNMENT THROUGH CDU
The aircraft is stationary on ground before take-off.
The three mode selectors are in the OFF position, the
ADIRUs are not energized.
1. When any mode selector is set to the NAV position,
the amber ON BAT light comes on for five seconds
and goes off.
When the ON BAT light is off, the white ALIGN light
comes on.
NOTE: ALIGN light flashes if the aircraft position has
not been entered 10 minutes after NAV mode
selection (using MCDU or ADIRS CDU).
The three selectors are in the NAV position, the IRs
are waiting for aircraft’s present position insertion.
2. When the SYS selector is in position 1, 2 or 3, the
window display is energized and the system selected
is ready for display.
DATA display selector must be set to PPOS in order
to enter the present position.
3. ADIRS CDU is now ready to accept the aircraft’s
present position (PPOS):
TOULOUSE - BLAGNAC: N43-37-8, E122.6
Present Position LATITUDE: N43-37-8
The keyed latitude is displayed on the left side
of the window display.
The PPOS Latitude is entered into the 3 IRs which
are in align mode whatever the system selected with
the SYS selector.
Present Position LONGITUDE: E1-22-6
The keyed longitude is displayed on the right side
　
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