DOC AIRBUS | TSM A320FWarning of the Duct Temperature Sensor Inoperative
TASK 21-26-00-810-818-A
Warning of the Duct Temperature Sensor Inoperative
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 21-26-00-710-062-A
Subtask 21-26-00-810-056-A
[Rev.8 from Aug 2018]
2026.04.04 04:24:37 UTC
Warning of the Duct Temperature Sensor Inoperative
1. Possible Causes
- SENSOR-DUCT TEMP, AVNCS VENT [26HQ]
wiring between the AEVC (10HQ) and the duct temperature sensor (26HQ) - AEVC [10HQ]
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| AMM 21-26-00-710-001 | Operational Check of the Avionics Equipment Ventilation-System via MCDU |
| ASM 212603 | |
| AMM 21-26-12-000-001 | Removal of the Avionics Ventilation Duct Temperature Sensor |
| AMM 21-26-12-400-001 | Installation of the Avionics Ventilation Duct Temperature Sensor |
| AMM 21-26-34-000-001 | Removal of the Avionics Equipment Ventilation Computer (AEVC) |
| AMM 21-26-34-400-001 | Installation of the Avionics Equipment Ventilation Computer (AEVC) |
Subtask 21-26-00-710-062-A
A. Test
(1) Do the operational test of the avionics equipment ventilation from the Multipurpose Control and Display Unit (MCDU) AMM 21-26-00-710-001.
4. Fault Isolation(1) Do the operational test of the avionics equipment ventilation from the Multipurpose Control and Display Unit (MCDU) AMM 21-26-00-710-001.
Subtask 21-26-00-810-056-A
A. If the test gives the maintenance message DUCT TEMP SENSOR 26HQ:
Subtask 21-26-00-710-063-A - Replace the SENSOR-DUCT TEMP, AVNCS VENT [26HQ] AMM 21-26-12-000-001 and AMM 21-26-12-400-001.
- Do a check and repair the
wiring between the AEVC (10HQ) and the duct temperature sensor (26HQ) , pins AB/5D and pins A/C ASM 212603.
- Replace the AEVC [10HQ] AMM 21-26-34-000-001 and AMM 21-26-34-400-001.
B. Do the operational test given in Para. 3.