Loss of the ADIRS CDU Data Input on the ADIRU3
1. Possible Causes
_______________
- CDU-ADIRS (2FP)
- ADIRU-3 (1FP3)
- wiring of the CDU OUTPUT bus from the ADIRS CDU (2FP) to the ADIRU3 (1FP3)
- wiring of the CDU DSPL SELECT discrete from the ADIRS CDU (2FP) to the ADIRU3 (1FP3)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 34-12-12-000-001 Removal of the ADIRS CDU (2FP)
AMM 34-12-12-400-001 Installation of the ADIRS CDU (2FP)
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)
AMM 34-14-00-740-001 Interface Test of the IR
ASM 34-14/02
3. Fault Confirmation
__________________
A. Test
(1) Do the Interface test of the IR (system 3) (Ref. AMM TASK 34-14-00-740-001).
4. Fault Isolation
_______________
R **ON A/C 001-049, 101-105, 151-199, 201-203,
A. If the BITE test gives the maintenance message ADIRS CONTROL PANEL (2FP):
- replace the CDU-ADIRS (2FP) (Ref. AMM TASK 34-12-12-000-001) and (Ref. AMM TASK 34-12-12-400-001).
(1) If the fault continues:
- replace the ADIRU-3 (1FP3) (Ref. AMM TASK 34-12-34-000-001) and (Ref. AMM TASK 34-12-34-400-001).
(a) If the fault continues:
- do a check of the wiring of the CDU OUTPUT bus from the ADIRS CDU (2FP) to the ADIRU3 (1FP3) (Ref. ASM 34-14/02).
「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 A226
May 01/05 CES 1 If there is no continuity:
_ - repair the above wiring.
2 If there is continuity:
_
- do a check and repair the wiring of the CDU DSPL SELECT discrete from the ADIRS CDU (2FP) to the ADIRU3 (1FP3) (Ref. ASM 34-14/02).
R **ON A/C 051-099, 106-149, 204-299, 301-399, 401-499,
A. If the BITE test gives the maintenance message ADIRS CDU (2FP):
- replace the CDU-ADIRS (2FP) (Ref. AMM TASK 34-12-12-000-001) and (Ref. AMM TASK 34-12-12-400-001).
(1) If the fault continues:
- replace the ADIRU-3 (1FP3) (Ref. AMM TASK 34-12-34-000-001) and (Ref. AMM TASK 34-12-34-400-001).
(a) If the fault continues:
- do a check of the wiring of the CDU OUTPUT bus from the ADIRS CDU (2FP) to the ADIRU3 (1FP3) (Ref. ASM 34-14/02).
1 If there is no continuity:
_ - repair the above wiring.
2 If there is continuity:
_
- do a check and repair the wiring of the CDU DSPL SELECT discrete from the ADIRS CDU (2FP) to the ADIRU3 (1FP3) (Ref. ASM 34-14/02).
**ON A/C ALL
B. Do the test given in Para. 3.
Loss of the AC Supply of the ADIRU1
1. Possible Causes
_______________
- ADIRU-1 (1FP1)
- aircraft wiring
- wiring between the ADIRU1 and the circuit breaker (4FP1)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
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)
AMM 34-14-00-740-001 Interface Test of the IR
ASM 34-11/01
3. Fault Confirmation
__________________
A. Test Do the Interface test of the IR (system 1) (Ref. AMM TASK 34-14-00-740-001).
4. Fault Isolation
_______________
A. If the test gives the maintenance message ADIRU1 (1FP1) AC SUPPLY:
- remove the ADIRU-1 (1FP1) (Ref. AMM TASK 34-12-34-000-001)
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