DOC AIRBUS | AMM A320FInstallation of the Avionics-Ventilation Comfort Duct-Temperature-Sensor
TASK 21-26-12-400-802-A
Installation of the Avionics-Ventilation Comfort Duct-Temperature-Sensor
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Expendable Parts
E. Referenced Information
3. Job Set-up
Subtask 21-26-12-420-054-A ** ON A/C NOT FOR ALL
Subtask 21-26-12-410-054-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 04:57:14 UTC
Installation of the Avionics-Ventilation Comfort Duct-Temperature-Sensor
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.14QDC1) | Wire-Locking Dia: 0.5 mm (0.020 inch) CRES - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 128 | REAR AVIONIC COMPARTMENT |
| 824 |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 3 | O-RING | AIPC 21-26-01-29-040 |
| 3 | O-RING | AIPC 21-26-81-29-040 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 21-26-00-710-001-A | Operational Check of the Avionics Equipment Ventilation-System via MCDU |
| TASK 21-26-00-710-001-A-01 | Operational Check of the Avionics Equipment Ventilation (without the CFDS) |
| TASK 24-42-00-861-001-A | Energize the Ground Service Network from the External Power |
| TASK 24-42-00-862-001-A | De-energize the Ground Service Network Supplied from the External Power |
| TASK 52-41-00-410-002-A | Close the Avionics Compartment Doors after Access |
Avionics-Ventilation Comfort Duct-Temperature-SensorCAUTION:
USE ONLY THE GROUND SERVICE NETWORK TO SUPPLY ELECTRICITY BECAUSE THE AVIONICS VENTILATION SYSTEM IS NOT SERVICEABLE. IF YOU ENERGIZE THE AIRCRAFT ELECTRICAL CIRCUITS WITHOUT THE VENTILATION SYSTEM YOU WILL CAUSE DAMAGE TO ELECTRICAL EQUIPMENT.
Subtask 21-26-12-860-054-A ** ON A/C NOT FOR ALL A. Aircraft Maintenance Configuration
(1) Make sure that the ground service network is energized (Ref. AMM TASK 24-42-00-861-001).
Subtask 21-26-12-010-059-A ** ON A/C NOT FOR ALL (1) Make sure that the ground service network is energized (Ref. AMM TASK 24-42-00-861-001).
B. Get Access
(1) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position at access door 824.
(2) Make sure that access door 824 is open.
Subtask 21-26-12-865-063-A ** ON A/C NOT FOR ALL (1) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position at access door 824.
(2) Make sure that access door 824 is open.
C. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
4. Procedure| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | AIR COND/AVNCS VENT/CTL | 6HQ | D06 |
| 49VU | AIR COND/AVNCS VENT/CTL | 5HQ | D05 |
| 122VU | AIR COND/AVNCS/VENT/MONG | 3HQ | Y17 |
| ** ON A/C NOT FOR ALL | |||
| 123VU | AVNCS VENT/EXTC/FAN | 2HQ | AE02 |
| ** ON A/C NOT FOR ALL | |||
| 123VU | AVNCS VENT/BLOWER/FAN | 1HQ | AD10 |
| ** ON A/C NOT FOR ALL | |||
| 123VU | AVNCS VENT/EXTC/FAN | 2HQ | AC04 |
Subtask 21-26-12-420-054-A ** ON A/C NOT FOR ALL
A. Installation of the Duct Temperature Sensor
(1) Put the new AIPC 21-26-01-29-040 O-RING (3) or AIPC 21-26-81-29-040 O-RING (3) in the groove of the sensor (2).
(2) Install the sensor (2) and tighten it.
(3) Installation of the lockwire
14QDC1 Wire-Locking Dia: 0.5 mm (0.020 inch) CRES -
(4) Remove the CAP-BLANKING from each electrical connector and receptacle.
(5) Make sure that all the electrical connections are clean and in the correct condition.
(6) Connect the electrical connector (1).
Subtask 21-26-12-865-064-A ** ON A/C NOT FOR ALL (1) Put the new AIPC 21-26-01-29-040 O-RING (3) or AIPC 21-26-81-29-040 O-RING (3) in the groove of the sensor (2).
(2) Install the sensor (2) and tighten it.
(3) Installation of the lockwire
WARNING:
USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.
(a) Safety the sensor with lockwire (4) Remove the CAP-BLANKING from each electrical connector and receptacle.
(5) Make sure that all the electrical connections are clean and in the correct condition.
(6) Connect the electrical connector (1).
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 21-26-12-710-054-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | AIR COND/AVNCS VENT/CTL | 6HQ | D06 |
| 49VU | AIR COND/AVNCS VENT/CTL | 5HQ | D05 |
| 122VU | AIR COND/AVNCS/VENT/MONG | 3HQ | Y17 |
| ** ON A/C NOT FOR ALL | |||
| 123VU | AVNCS VENT/EXTC/FAN | 2HQ | AE02 |
| ** ON A/C NOT FOR ALL | |||
| 123VU | AVNCS VENT/BLOWER/FAN | 1HQ | AD10 |
| ** ON A/C NOT FOR ALL | |||
| 123VU | AVNCS VENT/EXTC/FAN | 2HQ | AC04 |
C. Operational Test of the Avionics Equipment Ventilation
(1) Do an operational test of the avionics equipment ventilation (Ref. AMM TASK 21-26-00-710-001)
5. Close-up(1) Do an operational test of the avionics equipment ventilation (Ref. AMM TASK 21-26-00-710-001)
NOTE: Make sure that the duct temperature in this area is less than 36 deg.C (96.80 deg.F) when you do this test.
Subtask 21-26-12-410-054-A ** ON A/C NOT FOR ALL
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close access door 824 (Ref. AMM TASK 52-41-00-410-002).
(3) Remove the access platform(s).
Subtask 21-26-12-862-055-A ** ON A/C NOT FOR ALL (1) Make sure that the work area is clean and clear of tools and other items.
(2) Close access door 824 (Ref. AMM TASK 52-41-00-410-002).
(3) Remove the access platform(s).