DOC AIRBUS | TSM A320FPack 1 Flow Sensor / Inlet Pressure Sensor Fault
TASK 21-51-00-810-817-A
Pack 1 Flow Sensor / Inlet Pressure Sensor Fault
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 21-51-00-710-078-A ** ON A/C NOT FOR ALL 4. Fault Isolation
Subtask 21-51-00-810-091-A ** ON A/C NOT FOR ALL
[Rev.8 from Aug 2018]
2026.04.04 04:24:48 UTC
Pack 1 Flow Sensor / Inlet Pressure Sensor Fault
1. Possible Causes
- SENSOR-DELTA P, PACK 1 [23HB2]
- SENSOR-PRESS, PACK 1 INLET [23HB1]
- CONT-AIR COND SYSTEM 1 [47HH]
- wiring
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| AMM 21-51-11-000-001 | Removal of the Differential Pressure Sensor |
| AMM 21-51-11-400-001 | Installation of the Differential Pressure Sensor |
| AMM 21-51-13-000-001 | Removal of the Pack-Inlet Pressure Sensor |
| AMM 21-51-13-400-001 | Installation of the Pack-Inlet Pressure Sensor |
| AMM 21-61-00-710-001 | Operational Test of the Pack Temperature-Control System |
| ASM 216101 | |
| AMM 21-61-34-000-002 | Removal of the Air-Conditioning System Controller |
| AMM 21-61-34-400-002 | Installation of the Air-Conditioning System Controller |
Subtask 21-51-00-710-078-A ** ON A/C NOT FOR ALL 4. Fault Isolation
Subtask 21-51-00-810-091-A ** ON A/C NOT FOR ALL
A. If the test gives the maintenance message P1 FLOW SENSOR(23HB2)/PIPS(23HB1):
(a) Do a check and repair wiring ASM 216101 from:
Subtask 21-51-00-720-052-A ** ON A/C NOT FOR ALL - Replace the SENSOR-DELTA P, PACK 1 [23HB2] AMM 21-51-11-000-001 and AMM 21-51-11-400-001.
- Replace the SENSOR-PRESS, PACK 1 INLET [23HB1] AMM 21-51-13-000-001 and AMM 21-51-13-400-001.
- Replace the CONT-AIR COND SYSTEM 1 [47HH] AMM 21-61-34-000-002 and AMM 21-61-34-400-002.
(a) Do a check and repair wiring ASM 216101 from:
B. Do the test as given in the Para. 3.A.