- do a check of the wiring between the ADIRU 1 and the terminal block 1831VT : for pins AB/10C, 11C of the ADIRU 1 (Ref. ASM 34-14/01)
 1_ If the above wiring is not ok:
 - repair it
 - install the ADIRU 1.
 2_ If the above wiring is ok:
 - do the trouble shooting procedure that follows (Ref. TASK

 31-32-00-810-934).
 B. Do the test given in Para. 3.
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞34-14-00∞∞∞∞∞∞∞∞∞∞Page B203
 May 01/05R
 CES  Loss of the IR2 Data Identified by the EFCS1

 1. Possible Causes
_______________
 - ADIRU-2 (1FP2)

 - wiring between the ADIRU 2 and the first terminal block

 - wiring between the ADIRU 2 and the terminal block 1831VT

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
31-32-00-810-934 Failure of the Digital Links
 AMM 27-96-00-740-001 BITE Test of the EFCS (Ground Scanning)
 AMM 34-12-34-000-001 Removal of the ADIRU (1FP1, 1FP2, 1FP3)
 AMM 34-12-34-400-001 Installation of the ADIRU (1FP1, 1FP2, 1FP3)
 ASM 34-14/01

 3. Fault Confirmation
__________________
 A. Test
 (1) Do the BITE test of the EFCS (Ground scanning) (system 1) (Ref. AMM TASK 27-96-00-740-001).
 4. Fault Isolation
_______________
 A. If the test gives the maintenance message IR2:
 - replace the ADIRU-2 (1FP2) (Ref. AMM TASK 34-12-34-000-001) and (Ref. AMM TASK 34-12-34-400-001).
 (1) If the fault continues:
 - remove the ADIRU 2

 - do a check of the wiring between the ADIRU 2 and the first terminal block : for pins AB/5E, 6E of the ADIRU 2 (Ref. ASM 34-14/01)

 (a) If the wiring is not ok:

 - repair it

 - install the ADIRU 2.

 (b) If the wiring is ok:

 - do a check of the wiring between the ADIRU 2 and the terminal block 1831VT : for pins AB/10C, 11C of the ADIRU 2 (Ref. ASM 34-14/01)
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞34-14-00∞∞∞∞∞∞∞∞∞∞Page B204
 May 01/05R CES

 1_ If the above wiring is not ok:
 - repair the above wiring
 - install the ADIRU 2.
 2_ If the above wiring is ok:
 - do the trouble shooting procedure that follows (Ref. TASK

 31-32-00-810-934).
 B. Do the test given in Para. 3.
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞34-14-00∞∞∞∞∞∞∞∞∞∞Page B205
 May 01/05R
 CES  Loss of the IR3 Data Identified by the EFCS1

 1. Possible Causes
_______________
 - ADIRU-3 (1FP3)

 - wiring between the ADIRU 3 and the first terminal block

 - wiring between the ADIRU 3 and the terminal block 1831VT

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
31-32-00-810-934 Failure of the Digital Links
 AMM 27-96-00-740-001 BITE Test of the EFCS (Ground Scanning)
 AMM 34-12-34-000-001 Removal of the ADIRU (1FP1, 1FP2, 1FP3)
 AMM 34-12-34-400-001 Installation of the ADIRU (1FP1, 1FP2, 1FP3)
 ASM 34-14/01

 3. Fault Confirmation
__________________
 A. Test
 (1) Do the BITE test of the EFCS (Ground scanning) (system 1) (Ref. AMM TASK 27-96-00-740-001).
 4. Fault Isolation
_______________
 A. If the test gives the maintenance message IR3:
 - replace the ADIRU-3 (1FP3) (Ref. AMM TASK 34-12-34-000-001) and (Ref. AMM TASK 34-12-34-400-001).
 (1) If the fault continues:
 - remove the ADIRU 3

 - do a check of the wiring between the ADIRU 3 and the first terminal block : for pins AB/5E, 6E of the ADIRU 3 (Ref. ASM 34-14/01)

 (a) If the wiring is not ok:

 - repair it

 - install the ADIRU 3.

 
　
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