4) The altitude when the fault occurred
5) The flight number.

NOTE: The INFLIGHT FAULTS message cannot be clear on ground.
B.  BITE Procedure
(1)  Do
the
BITE
procedure
for
the
ADIRS
(Figure
201):

(a)  If you are not at one of the ADIRS BITE TEST displays, then do these steps: 1) Push the INIT REF function key. 2) If the POS INIT display shows, then push the line select key next to the INDEX prompt.
NOTE: This makes the INIT/REF INDEX show. 3) Push the line select key next to the MAINT prompt.
NOTE: This will bring you to the MAINT BITE INDEX.
(b)  
From the MAINT BITE INDEX, push the line select key next to the ADIRS prompt.

(c)  
Push the line select key next to the applicable ADIRS L BITE or ADIRS R BITE prompt.

(d)  
Do these steps to look for maintenance message in CURRENT STATUS: 1) Push the line select key next to the CURRENT STATUS prompt.

NOTE: If there are active faults detected by the ADIRU, you will see a maintenance message number and the maintenance message text.

(e)  
If there are any maintenance messages, then refer to the table at the end of this task to find the fault isolation task for the applicable maintenance message.

(f)  
If NO FAULTS shows for the left ADIRU and right ADIRU, then do these steps:
NOTE: There are no faults that are currently active.

EFFECTIVITY SIL ALL  34-21 TASK 801 
D633A103-SIL BOEING PROPRIETARY -Copyright # Unpublished Work -See title page for details  Page 201 Oct 15/2008 

1)  Push the line select key next to the INDEX prompt.
NOTE: This will bring you back to the ADIRS BITE main menu.

(2)  
If there are no maintenance message in CURRENT STATUS for the left ADIRU and right ADIRU, then do these steps to look for maintenance message in INFLIGHT FAULTS:

(a)  
Push the line select key next to the INDEX prompt.

(b)  
Push the line select key next to the INFLIGHT FAULTS prompt.

(c)  
Push the line select key next to the prompt for the flight leg (LEG) during which the fault occurred.

NOTE: The most recent flight leg is LEG 01.
NOTE: INFLIGHT FAULTS cannot be cleared on ground.

(d)  
If there are maintenance messages, then refer to the table at the end of this task to find the fault isolation task for the applicable maintenance messages.

(e)  
Push the line select key next to the INDEX prompt two times to return to the ADIRS BITE main menu.

(3)  
If
ADIRS
maintenance
code
05
shows
on
the
ISDU,
do
this
task:
ADIRS
Maintenance
Code
05
-
Fault Isolation, 34-21 TASK 832.

(4)  
If
ADIRS
maintenance
code
06
shows
on
the
ISDU,
do
this
task:
ADIRS
Maintenance
Code
06
-
Fault Isolation, 34-21 TASK 833.

-------------------------END OF TASK ---------------------------
LRU/SYSTEM  MAINTENANCE MESSAGE  GO TO FIM TASK 
ADIRS  34-21001 ISDU FAIL  34-21
TASK
802
 
ADIRS  34-21002 IR FAILURE  34-21
TASK
803
 
ADIRS  34-21003 EXCESSIVE MOTION  34-21
TASK
804
 
ADIRS  34-21004 ALIGN FAULT  34-21
TASK
805
 
ADIRS  34-21007 ADR DATA INVLD  34-21
TASK
840
 
ADIRS  34-21008 ENTER PPOS  34-21
TASK
807
　
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