A. If the test gives the maintenance message : ADIRU 2/3 (1FP2/3)/ATC2(1SH2)
- 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 :
- replace the XPDR-ATC/MODE S, 2 (1SH2) (Ref. AMM TASK 34-52-33-000-001) and (Ref. AMM TASK 34-52-33-400-001).
(2) If the fault continues :
- do a check and repair the wiring between the ADIRU 2 and the ATC/Mode S transponder 2 for the Air Data Input 1 bus (Ref. ASM 34-52/01).
**ON A/C ALL
B. Do the test given in Para. 3.
Loss of the CFDIU Input Data to the ATC/MODE S Transponder 1
1. Possible Causes
_______________
- XPDR-ATC/MODE S, 1 (1SH1)
- CFDIU (1TW)
- wiring of the MAINTENANCE DATA INPUT bus from the ATC/MODE S transponder 1 (1SH1) to the first terminal block
- wiring of the MAINTENANCE DATA INPUT bus from the CFDIU (1TW) to the ATC/Mode S transponder 1 (1SH1)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 31-32-34-000-001 Removal of the CFDIU (1TW)
AMM 31-32-34-400-001 Installation of the CFDIU (1TW)
AMM 34-52-00-740-004 BITE Test of the ATC
AMM 34-52-33-000-001 Removal of the ATC/Mode S Transponder (1SH1, 1SH2)
AMM 34-52-33-400-001 Installation of the ATC/Mode S Transponder
(1SH1,1SH2)
ASM 34-52/01
3. Fault Confirmation
__________________
A. Test
(1) Do the BITE test of the ATC (Ref. AMM TASK 34-52-00-740-004).
4. Fault Isolation
_______________
R **ON A/C 001-049, 101-105, 151-199,
A. If the BITE test gives the maintenance message ATC1: NO DATA FROM CFDIU:
- replace the XPDR-ATC/MODE S, 1 (1SH1) (Ref. AMM TASK 34-52-33-000-001) and (Ref. AMM TASK 34-52-33-400-001).
(1) If the fault continues:
- do a check and repair the wiring of the MAINTENANCE DATA INPUT bus from the ATC/MODE S transponder 1 (1SH1) to the first terminal block (Ref. ASM 34-52/01).
R **ON A/C 051-099, 106-149, 201-299, 301-399, 401-499,
A. If the BITE test gives the maintenance message CFDIU (1TW) / ATC1 (1SH1) :
- replace the CFDIU (1TW) (Ref. AMM TASK 31-32-34-000-001) and (Ref. AMM TASK 31-32-34-400-001).
(1) If the fault continues:
- replace the XPDR-ATC/MODE S, 1 (1SH1) (Ref. AMM TASK 34-52-33-000-001) and (Ref. AMM TASK 34-52-33-400-001).
(a) If the fault continues :
- do a check and repair the wiring of the MAINTENANCE DATA INPUT bus from the CFDIU (1TW) to the ATC/Mode S transponder 1 (1SH1) (Ref. ASM 34-52/01).
**ON A/C ALL
B. Do the test given in Para. 3.
Loss of the CFDIU Input Data to the ATC/MODE S Transponder 2
1. Possible Causes
_______________
- XPDR-ATC/MODE S, 2 (1SH2)
- CFDIU (1TW)
- wiring of the MAINTENANCE DATA INPUT bus from the ATC/MODE S transponder 2 (1SH2) to the first terminal block
- wiring of the MAINTENANCE DATA INPUT bus from the CFDIU (1TW) to the ATC/Mode S transponder 2 (1SH2)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 31-32-34-000-001 Removal of the CFDIU (1TW)
AMM 31-32-34-400-001 Installation of the CFDIU (1TW)
AMM 34-52-00-740-004 BITE Test of the ATC
AMM 34-52-33-000-001 Removal of the ATC/Mode S Transponder (1SH1, 1SH2)
AMM 34-52-33-400-001 Installation of the ATC/Mode S Transponder
(1SH1,1SH2)
ASM 34-52/01
3. Fault Confirmation
__________________
A. Test
(1) Do the BITE test of the ATC (Ref. AMM TASK 34-52-00-740-004).
4. Fault Isolation
_______________
R **ON A/C 001-049, 101-105, 151-199,
A. If the BITE test gives the maintenance message ATC2: NO DATA FROM CFDIU:
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