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 4. Procedure
_________
 Subtask 34-10-00-860-058

 A. IR Alignment from the ADIRS CDU
 -------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. On the ADIRS CDU:
-
set the three OFF/NAV/ATT
selector switches to NAV

-
set the DATA DISPLAY selector switch to PPOS

 -
set the SYS DISPLAY selector switch to 1

 - on the CDU keyboard, enter the present position (example for Toulouse): N 43. 36' 8'' then push the ENT key, E 1. 21' 9'' then push the ENT key.
 NOTE : If the coordinates are
____ incorrect, push the CLR key and enter new data as above.
On the ADIRS CDU:
-
the OFF legend of the ADR1, ADR2 andADR3 pushbutton switches stays off.

 -
the ON BAT light stays on for 5 seconds.

 -
the ALIGN legend comes on. After approximately 40 seconds: - on the CAPT and F/O PFDs:

 . the ATT warning flags go out of
 view.
 . the attitude data come into view.

 - on the upper ECAM display unit, the memo section shows IRS IN ALIGN > 7 MN.
The ADIRS CDU shows the coordinatesN 43-36-8 (in the left part of thedisplay) andE 1-21-9 (in the right part of thedisplay).
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 -------------------------------------------------------------------------------
ACTION RESULT -------------------------------------------------------------------------------
NOTE : If an incorrect longitude
____
 is entered two times in
 sequence during PPOS
 entry, the ADIRU's will
 accept this position until
 the subsequent alignment.

 -set the SYS DISPLAY selector  After a time delay of approximately 5 switch to 2, then to 3 and make minutes: sure that the coordinates shown - on the CAPT and F/O NDs , the HDG are the same for the three warning flags go out of view and the ADIRUs. Set the SYS DISPLAY heading dial comes into view. selector switch to 1. After a time delay of approximately 10
 minutes:
 - on the ADIRS CDU, the ALIGN legend of the IR1, IR2 and IR3 annunciators goes off
 - on the upper ECAM display unit, the
 IRS IN ALIGN 1 MN indication goes out R of view (the ADIRUs are in the NAV R mode).
 -----------------------------------------------------------------------------MAINTENANCE INDICATION | DESCRIPTION
 ON THE CDU | -----------------------------------------------------------------------------STS - IRU FAULT | Critical failure. Remove the IRU for
 | maintenance. STS - DELAYED MAINT | Non critical failure. Remove the IRU
 | if necessary. STS - ENTER P POS | Enter the present position. STS - SELECT ATT | Non critical failure. Set the ATT mod STS - XCESS MOTION | Excessive movements of the aircraft
 | during the alignment. STS - ADR FAULT | ADR non valid. STS - CHECK CK/BK | Do the check of the circuit breaker. STS - CDU FAULT | Remove the CDU for maintenance. STS - ENT MAG HDG | Enter the magnetic heading in
 | attitude mode.
 NOTE : These status indications are given to help you. They come into
____ view only when the DATA DISPLAY selector switch on the ADIRS CDU is at STS, after a fault detection.
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 B. IR Alignment from the MCDU:
 -------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1.
 On the circuit breaker panel 121VU: - open the circuit breaker 10CA2.

 2.
 On the ADIRS CDU:

-set the three OFF/NAV/ATT selector switches to NAV.
R
-set the SYS DISPLAY selector switch to 1 (2 or 3) and the DATA DISPLAY selector switch to PPOS.
 3. On the MCDU1 or 2:
-turn the BRT knob.
-
push the MCDU MENU mode key.

 -
push the line key adjacent to FMGC indication.

 -
push the INIT mode key.

-enter an airline code route.
On the ADIRS CDU:
-
the OFF legend of the ADR pushbuttonswitches stays off after flashing twice

 -
the ON BAT light comes on for 5 seconds.

 -
the ALIGN legend of the IR1, IR2 and

 IR3 annunciators comes on. On the upper ECAM display unit the memo section shows IRS IN ALIGN > 7 MN (only if the FMGC 1 and 2 energized) On the CAPT and F/O PFDs:
　
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