DOC AIRBUS | AMM A320FInstallation of the ATC/Mode S Transponder
TASK 34-52-33-400-001-A
Installation of the ATC/Mode S Transponder
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Work Zones and Access Panels
C. Referenced Information
3. Job Set-up
Subtask 34-52-33-860-050-A
Subtask 34-52-33-420-050-A
Subtask 34-52-33-860-051-A
[Rev.10 from 2021]
2026.04.02 06:23:32 UTC
Installation of the ATC/Mode S Transponder
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | ACCESS PLATFORM 1M(3 FT) |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 127 | REAR AVIONIC COMPARTMENT |
| 128 | REAR AVIONIC COMPARTMENT |
| 824 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 34-52-00-740-004-A | BITE Test of the Air Traffic Control (ATC) |
| TASK 52-41-00-410-002-A | Close the Avionics Compartment Doors after Access |
ATC/Mode S TransponderSubtask 34-52-33-860-050-A
A. Aircraft Maintenance Configuration
(1) Make sure that the ACCESS PLATFORM 1M(3 FT) is in position at the access door 824 in zone 128.
(2) Make sure that the access door 824 is open.
Subtask 34-52-33-865-051-A (1) Make sure that the ACCESS PLATFORM 1M(3 FT) is in position at the access door 824 in zone 128.
(2) Make sure that the access door 824 is open.
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
4. Procedure| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C ALL | |||
| FOR FIN: 1SH1 (XPDRATC/MODE S, 1) | |||
| 49VU | COM NAV/ATC/1 | 5SH1 | G11 |
| ** ON A/C NOT FOR ALL | |||
| FOR FIN: 1SH2 (XPDRATC/MODE S, 2) | |||
| 121VU | COM NAV/ATC/2 | 5SH2 | K07 |
Subtask 34-52-33-420-050-A
A. Installation of the ATC/Mode S Transponder.
(1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Remove the blanking caps from the electrical connectors (2).
(4) Make sure that the electrical connectors (2) are clean and in the correct condition.
(5) Install the ATC/Mode S transponder (1) on its rack (3).
(6) Push the ATC/Mode S transponder (1) on its rack (3) to connect the electrical connectors (2).
(7) Engage the nuts (4) on the lugs (5) and tighten.
Subtask 34-52-33-865-052-A (1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Remove the blanking caps from the electrical connectors (2).
(4) Make sure that the electrical connectors (2) are clean and in the correct condition.
(5) Install the ATC/Mode S transponder (1) on its rack (3).
(6) Push the ATC/Mode S transponder (1) on its rack (3) to connect the electrical connectors (2).
(7) Engage the nuts (4) on the lugs (5) and tighten.
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 34-52-33-740-050-A 5. Close-up| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C ALL | |||
| FOR FIN: 1SH1 (XPDRATC/MODE S, 1) | |||
| 49VU | COM NAV/ATC/1 | 5SH1 | G11 |
| ** ON A/C NOT FOR ALL | |||
| FOR FIN: 1SH2 (XPDRATC/MODE S, 2) | |||
| 121VU | COM NAV/ATC/2 | 5SH2 | K07 |
Subtask 34-52-33-860-051-A
A. Make sure that the work area is clean and clear of tools and other items.
Subtask 34-52-33-410-050-A B. Close Access
(1) Close the access door 824 (Ref. AMM TASK 52-41-00-410-002).
(2) Remove the access platform(s).
(1) Close the access door 824 (Ref. AMM TASK 52-41-00-410-002).
(2) Remove the access platform(s).