1. Possible Causes
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- FAC-1 (1CC1)
- FAC-2 (1CC2)
- FMGC-1 (1CA1)
- FMGC-2 (1CA2)
- rejection of ADR parameters due to excessive offset
- wiring of the ADC ADIRS OPP and the IRS ADIRS OPP bus from the FAC 1
(1CC1) to the first terminal block
- wiring of the ADC ADIRS OWN and the IRS ADIRS OWN bus from the FAC 2
(1CC2) to the first terminal block
- wiring of the ADC ADIRS OPP and the IRS ADIRS OPP bus from the FMGC 1 (1CA1) to the first terminal block
- wiring of the ADC ADIRS OWN and the IRS ADIRS OWN bus from the FMGC 2 (1CA2) to the first terminal block
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
34-11-00-810-861 Different Angle of Attack Value on the three ADIRUs AMM 22-66-34-000-002 Removal of the FAC (1CC1,1CC2) AMM 22-66-34-400-002 Installation of the FAC (1CC1,1CC2) AMM 22-83-34-000-001 Removal of the FMGC (1CA1,1CA2) AMM 22-83-34-400-001 Installation of the FMGC (1CA1,1CA2) AMM 22-91-00-710-001 Ground Scanning of the AFS AMM 34-13-00-720-009 Functional Test of the Altitude and Airspeed Data ASM 22-69/01 ASM 22-86/01
「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 ∞∞22-66-00∞∞∞∞∞∞∞∞∞∞Page 274
May 01/04R
CES
3. Fault Confirmation
__________________
A. Make sure that this(these) circuit breaker(s) is(are) closed:
-------------------------------------------------------------------------------
PANEL DESIGNATION IDENT. LOCATION
-------------------------------------------------------------------------------
**ON A/C 001-049, 051-061, 101-105, 201-203,
121VU ADIRS/ADIRU/2PWR/SHED 10FP N11 121VU ADIRS/ADIRU/2/26VAC AND AOA 5FP2 N09 121VU ADIRS/ADIRU/2/115VAC 4FP2 N07 121VU ADIRS/ADIRU/2/28VDC 6FP2 N05
R **ON A/C 062-099, 106-149, 151-199, 204-299, 301-399, 401-499,
121VU ADIRS/ADIRU/2PWR/SHED 10FP N10 121VU ADIRS/ADIRU/2/26VAC AND AOA 5FP2 N08 121VU ADIRS/ADIRU/2/115VAC 4FP2 N06 121VU ADIRS/ADIRU/2/28VDC 6FP2 N04
**ON A/C ALL
B. Test
(1) Do the Ground Scanning of the AFS (Ref. AMM TASK 22-91-00-710-001).
4. Fault Isolation
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A. If the test gives the maintenance message AFS: ADIRU2 (ISSUED BY: FAC1):
- do the Functional Check of the Altitude/Airspeed Data (Ref. AMM TASK 34-13-00-720-009) to check if there is rejection of ADR parameters due to excessive offset.
(1) If the fault continues:
- replace the FAC-1 (1CC1) (Ref. AMM TASK 22-66-34-000-002) and (Ref. AMM TASK 22-66-34-400-002).
(2) If the fault continues:
- do the monitoring of the AOA sensors (Ref. TASK 34-11-00-810-861).
(3) If the fault continues:
- do a check and repair the wiring of the ADC ADIRS OPP and the IRS ADIRS OPP bus from the FAC 1 (1CC1) to the first terminal block (Ref. ASM 22-69/01).
「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 ∞∞22-66-00∞∞∞∞∞∞∞∞∞∞Page 275
Aug 01/05 CES B. If the test gives the maintenance message AFS: ADIRU2 (ISSUED BY: FAC2):
- do the Functional Check of the Altitude/Airspeed Data (Ref. AMM TASK 34-13-00-720-009) to check if there is rejection of ADR parameters due to excessive offset.
(1) If the fault continues:
- replace the FAC-2 (1CC2) (Ref. AMM TASK 22-66-34-000-002) and (Ref. AMM TASK 22-66-34-400-002).
(2) If the fault continues:
- do the monitoring of the AOA sensors (Ref. TASK 34-11-00-810-861).
(3) If the fault continues:
- do a check and repair the wiring of the ADC ADIRS OWN and the IRS ADIRS OWN bus from the FAC 2 (1CC2) to the first terminal block (Ref. ASM 22-69/01).
C. If the test gives the maintenance message AFS: ADIRU2 (ISSUED BY: FG1):
- do the Functional Check of the Altitude/Airspeed Data (Ref. AMM TASK 34-13-00-720-009).
(1) If the fault continues:
- replace the FMGC-1 (1CA1) (Ref. AMM TASK 22-83-34-000-001) and (Ref. AMM TASK 22-83-34-400-001).
(2) If the fault continues:
- do a check and repair the wiring of the ADC ADIRS OPP and the IRS ADIRS OPP bus from the FMGC 1 (1CA1) to the first terminal block (Ref. ASM 22-86/01).
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