DOC AIRBUS | TSM A320FCPC 1 receives no Data from the ADIRS
TASK 21-31-00-810-814-A
CPC 1 receives no Data from the ADIRS
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 21-31-00-710-076-A
Subtask 21-31-00-810-083-A
Subtask 21-31-00-860-063-A
[Rev.8 from Aug 2018]
2026.04.04 04:24:42 UTC
CPC 1 receives no Data from the ADIRS
1. Possible Causes
- PRESS CONT 1 [11HL]
- wiring
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| AMM 21-31-00-710-002 | Operational Test of the Pressure Control and Monitoring |
| ASM 213103 | |
| AMM 21-31-34-000-001 | Removal of the Cabin Pressure Controller |
| AMM 21-31-34-400-001 | Installation of the Cabin Pressure Controller |
| AMM 34-13-00-740-002 | INTERFACE TEST of the ADR |
Subtask 21-31-00-710-076-A
A. Test
(1) Do a read-out of the CLASS III FAULT REPORT of the cabin pressure-control system 1.
(3) Do the operational test of the pressure control and monitoring system AMM 21-31-00-710-002.
4. Fault Isolation(1) Do a read-out of the CLASS III FAULT REPORT of the cabin pressure-control system 1.
NOTE: If a fault is detected, the CLASS III FAULT REPORT of the CPC shows a fault code for shop maintenance in addition to the related CFDS message(s). For detailed information see the applicable Page Block 301.
(2) Make sure that all ADIRS (1,2 and 3) are switched on. (3) Do the operational test of the pressure control and monitoring system AMM 21-31-00-710-002.
Subtask 21-31-00-810-083-A
A. If the test with the CPC 1 (11HL) gives the maintenance message NO DATA FROM ADIRS 1 (19):
(b) If the fault continues:
Subtask 21-31-00-810-084-A - swap the CPC 1 (11HL) and the CPC 2 (12HL) AMM 21-31-34-000-001 and AMM 21-31-34-400-001.
- swap back the CPC 1 (11HL) and the CPC 2 (12HL) AMM 21-31-34-000-001 and AMM 21-31-34-400-001.
- replace the PRESS CONT 1 [11HL] AMM 21-31-34-000-001 and AMM 21-31-34-400-001.
- swap back the CPC 1 (11HL) and the CPC 2 (12HL) AMM 21-31-34-000-001 and AMM 21-31-34-400-001.
- do the INTERFACE test of the ADR system AMM 34-13-00-740-002.
(b) If the fault continues:
- do a check and repair the wiring of the signal DATA BUS £3 from the ADIRS 1 (1FP1) to the CPC 1 (11HL) ASM 213103.
B. If the test with the CPC 1 (11HL) gives the maintenance message NO DATA FROM ADIRS 2 (20):
(b) If the fault continues:
Subtask 21-31-00-810-085-A - swap the CPC 1 (11HL) and the CPC 2 (12HL) AMM 21-31-34-000-001 and AMM 21-31-34-400-001.
- swap back the CPC 1 (11HL) and the CPC 2 (12HL) AMM 21-31-34-000-001 and AMM 21-31-34-400-001.
- replace the PRESS CONT 1 [11HL] AMM 21-31-34-000-001 and AMM 21-31-34-400-001.
- swap back the CPC 1 (11HL) and the CPC 2 (12HL) AMM 21-31-34-000-001 and AMM 21-31-34-400-001.
- do the INTERFACE test of the ADR system AMM 34-13-00-740-002.
(b) If the fault continues:
- do a check and repair the wiring of the signal DATA BUS £4 from the ADIRS 2 (1FP2) to the CPC 1 (11HL) ASM 213103.
C. If the test with the CPC 1 (11HL) gives the maintenance message NO DATA FROM ADIRS 3 (21):
(b) If the fault continues:
Subtask 21-31-00-710-077-A - swap the CPC 1 (11HL) and the CPC 2 (12HL) AMM 21-31-34-000-001 and AMM 21-31-34-400-001.
- swap back the CPC 1 (11HL) and the CPC 2 (12HL) AMM 21-31-34-000-001 and AMM 21-31-34-400-001.
- replace the PRESS CONT 1 [11HL] AMM 21-31-34-000-001 and AMM 21-31-34-400-001.
- swap back the CPC 1 (11HL) and the CPC 2 (12HL) AMM 21-31-34-000-001 and AMM 21-31-34-400-001.
- do the INTERFACE test of the ADR system AMM 34-13-00-740-002.
(b) If the fault continues:
- do a check and repair if necessary the wiring of the signal DATA BUS £3 from the ADIRS 3 (1FP3) to the CPC 1 (11HL) ASM 213103.
D. Do the test as given in the Para. 3.A.
5. Close-upSubtask 21-31-00-860-063-A
A. Put the aircraft back to its initial configuration.