DOC AIRBUS | AMM A320FReplacement of the Switchguard from the Forward Attendant Panel
TASK 23-73-12-960-001-A
Replacement of the Switchguard from the Forward Attendant Panel
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Referenced Information
3. Job Set-up
Subtask 23-73-12-861-062-A ** ON A/C NOT FOR ALL
Subtask 23-73-12-960-050-A ** ON A/C NOT FOR ALL
Subtask 23-73-12-862-056-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.02 06:12:29 UTC
Replacement of the Switchguard from the Forward Attendant Panel
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | PIN - NON METALLIC |
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 23-73-00-710-026-A | Operational Test of the Emergency Evacuation (EVAC) Signaling System |
| TASK 23-73-00-740-003-A | BITE-Test of the Cabin Intercommunication Data System (CIDS) through the PTP |
| TASK 23-73-00-861-001-A | Energize the Cabin Intercommunication Data System (CIDS) |
| TASK 24-41-00-861-002-A | Energize the Aircraft Electrical Circuits from the External Power |
| TASK 24-41-00-861-002-A-01 | Energize the Aircraft Electrical Circuits from the APU |
| TASK 24-41-00-861-002-A-02 | Energize the Aircraft Electrical Circuits from Engine 1(2) |
| TASK 24-41-00-862-002-A | De-energize the Aircraft Electrical Circuits Supplied from the External Power |
| TASK 24-41-00-862-002-A-01 | De-energize the Aircraft Electrical Circuits Supplied from the APU |
| TASK 24-41-00-862-002-A-02 | De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2) |
| TASK 33-51-00-710-007-A | Operational Test of the Emergency Lighting in the Cabin with the 'LIGHT EMER' Pushbutton Switch |
Replacement: Switchguard of the Forward Attendant Panel (FAP)Subtask 23-73-12-861-062-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002)
Subtask 23-73-12-865-073-A ** ON A/C NOT FOR ALL (1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002)
B. Open, safety and tag this(these) circuit breaker(s):
4. Procedure| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM /CIDS/FWD ATTND/PNL | 170RH | Q14 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM /CIDS/FLT ATTND/PNL | 170RH | Q14 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM/FAP1/NORM | 170RH | Q14 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/CIDS/FWD ATTND/PNL | 170RH | Q14 |
Subtask 23-73-12-960-050-A ** ON A/C NOT FOR ALL
A. Replacement of the Switchguard from the Forward Attendant Panel (FAP)
(1) Replace the Switchguard of the Forward Attendant Panel (FAP).
(a) Pull down the locking rod (1) and carefully open the cover (2) of the Forward Attendant Panel (3).
(c) Carefully pull the locking-pin (4) at its end and remove it.
(d) Carefully remove the switchguard (5).
(e) Carefully pull the brackets (6) until they have the correct position for the new switchguard and hold them in this position.
(f) Put the new switchguard (5) in position and carefully push the locking-pin (4) into the brackets (6).
Subtask 23-73-12-865-074-A ** ON A/C NOT FOR ALL (1) Replace the Switchguard of the Forward Attendant Panel (FAP).
(a) Pull down the locking rod (1) and carefully open the cover (2) of the Forward Attendant Panel (3).
CAUTION:
BE CAREFUL WHEN YOU DO WORK ON THE FRONT PLATE OF THE FORWARD ATTENDANT PANEL. IT IS EASY TO CAUSE DAMAGE TO THE SURFACE.
(b) Carefully push the locking-pin (4) with a PIN - NON METALLIC (7) from one side until you get access to one end of the locking-pin (4). (c) Carefully pull the locking-pin (4) at its end and remove it.
(d) Carefully remove the switchguard (5).
(e) Carefully pull the brackets (6) until they have the correct position for the new switchguard and hold them in this position.
(f) Put the new switchguard (5) in position and carefully push the locking-pin (4) into the brackets (6).
NOTE: Make sure that the locking-pin (4) has the correct position and is fully locked.
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 23-73-12-869-057-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM /CIDS/FWD ATTND/PNL | 170RH | Q14 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM /CIDS/FLT ATTND/PNL | 170RH | Q14 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM/FAP1/NORM | 170RH | Q14 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/CIDS/FWD ATTND/PNL | 170RH | Q14 |
C. Aircraft Maintenance Configuration
(1) Make sure that the Cabin Intercommunication Data System (CIDS) is energized
(Ref. AMM TASK 23-73-00-861-001).
Subtask 23-73-12-740-058-A ** ON A/C NOT FOR ALL (1) Make sure that the Cabin Intercommunication Data System (CIDS) is energized
(Ref. AMM TASK 23-73-00-861-001).
D. Do the BITE Test of the Cabin Intercommunication Data System (CIDS) through the PTP (Ref. AMM TASK 23-73-00-740-003).
Subtask 23-73-12-710-051-A ** ON A/C NOT FOR ALL E. Do this (these) test(s) for the pushbuttons(s) where you have replaced the Switchguard(s).
(1) For the Switchguard-replacement of the LIGHT EMER-pushbutton :
Subtask 23-73-12-710-051-B ** ON A/C NOT FOR ALL (1) For the Switchguard-replacement of the LIGHT EMER-pushbutton :
- Do the Operational Test of the EMER LT SYS (Ref. AMM TASK 33-51-00-710-007).
- Do the Operational Test of the Emergency Evacuation Signalling System (Ref. AMM D/O 23-73-00-71).
E. Do this (these) test(s) for the pushbuttons(s) where you have replaced the switchguard(s).
(1) For the Switchguard-replacement of the LIGHT EMER-pushbutton :
5. Close-up(1) For the Switchguard-replacement of the LIGHT EMER-pushbutton :
- Do the Operational Test of the EMER LT SYS (Ref. AMM TASK 33-51-00-710-007).
- Do the Operational Test of the Emergency Evacuation Signalling System (Ref. AMM TASK 23-73-00-710-026).
Subtask 23-73-12-862-056-A ** ON A/C NOT FOR ALL