DOC AIRBUS | AMM A320FInstallation of the Ceiling Panels - Forward Utility Area
TASK 25-23-42-400-001-A
Installation of the Ceiling Panels - Forward Utility Area
1. Reason for the Job
A. Fixtures, Tools, Test and Support Equipment
B. Work Zones and Access Panels
C. Referenced Information
3. Job Set-up
Subtask 25-23-42-860-051-A ** ON A/C NOT FOR ALL
Subtask 25-23-42-420-050-A ** ON A/C NOT FOR ALL
Subtask 25-23-42-865-053-A
[Rev.10 from 2021]
2026.04.01 03:48:19 UTC
Installation of the Ceiling Panels - Forward Utility Area
1. Reason for the Job
NOTE: More than one person is necessary for this task.
2. Job Set-up InformationA. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| 98A25207503000 | 1 | PULLEY ASSEMBLY - SEALING CORD |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 221AC, 221BC, 222BC |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 23-72-51-000-001-A | Removal of the Anti-Hijack-System Cameras |
| TASK 23-72-51-400-001-A | Installation of the Anti-Hijack-System Cameras |
| TASK 23-73-00-710-035-A | Operational Test of the Cabin LED lamps through the MCDU |
| TASK 23-73-00-740-005-A | BITE-Test of the Cabin Intercommunication Data System (CIDS) through the CFDS |
| TASK 23-73-00-740-005-B | Interface and Power-Up Test of the Cabin Intercommunication Data System (CIDS) through 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 26-10-00-740-801-A | BITE Test of the Smoke Detection Function - System Test |
| TASK 33-21-00-710-001-A | Operational Test of the General Illumination |
| TASK 33-26-00-710-001-A | Operational Test of the Lavatory Lighted Signs WJ |
| TASK 33-51-00-710-008-A | Operational Test of the Emergency Lighting in the Cabin with the 'EMER EXIT LT' Switch |
Ceiling Panels Forward Utility AreaSubtask 25-23-42-860-051-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)
(2) Clean the component interfaces and the adjacent area.
(3) Do an inspection of the component interfaces and the adjacent area.
(4) Make sure that the parts retained from the removed component are clean and in the correct condition.
Subtask 25-23-42-860-051-B ** ON A/C NOT FOR ALL (1) Make sure that the ground service network is energized
(Ref. AMM TASK 24-42-00-861-001)
(2) Clean the component interfaces and the adjacent area.
(3) Do an inspection of the component interfaces and the adjacent area.
(4) Make sure that the parts retained from the removed component are clean and in the correct condition.
A. Aircraft Maintenance Configuration
(1) Make sure that the ground service network is energized
(Ref. AMM TASK 24-42-00-861-001)
(2) Make sure that the cameras are removed (Ref. AMM TASK 23-72-51-000-001).
(3) Clean the component interfaces and the adjacent area.
(4) Do an inspection of the component interfaces and the adjacent area.
(5) Make sure that the parts retained from the removed component are clean and in the correct condition.
Subtask 25-23-42-865-052-A (1) Make sure that the ground service network is energized
(Ref. AMM TASK 24-42-00-861-001)
(2) Make sure that the cameras are removed (Ref. AMM TASK 23-72-51-000-001).
(3) Clean the component interfaces and the adjacent area.
(4) Do an inspection of the component interfaces and the adjacent area.
(5) Make sure that the parts retained from the removed component are clean and in the correct condition.
B. 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 | COM/CIDS/DEU B/ESS | 153RH | G03 |
| 49VU | LIGHTING/EMER LT/CABIN | 2WL | H06 |
| 49VU | LIGHTING/EMER LT/CABIN | 1WL | H05 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | LIGHTING/EMER LT/CABIN | 2WL | H04 |
| 49VU | LIGHTING/EMER LT/CABIN | 1WL | H03 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/CIDS/DEU B/NORM | 162RH | M08 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/CIDS/DEU B/NORM | 162RH | M09 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM/CIDS/DEU B/BAT | 143RH | N12 |
| ** ON A/C NOT FOR ALL | |||
| 2000VU | LAV FWD-OCCUPIED | 1WJ | F01 |
| ** ON A/C ALL | |||
| 2000VU | LIGHT-CABIN-ENTRY | 308LG | J02 |
| ** ON A/C NOT FOR ALL | |||
| 2000VU | LAV FWD & MID-OCCUPIED | 1WJ | F01 |
Subtask 25-23-42-420-050-A ** ON A/C NOT FOR ALL
A. Installation of the Ceiling Panel (5) and the Trim Panel (6)
(1) Put the trim panel (6) on the mounting structure (12) and hold it in position.
(2) Do the next steps through the openings where the ceiling panels (4), (7) and (5) were installed:
(a) Put the washers (10) in position and install the bolts (9) and the nuts (11).
(b) Remove the CAP-BLANKING from each electrical connector and receptacle.
(c) Make sure that all the electrical connections are clean and in the correct condition.
(d) Connect the electrical connector (8).
(3) Put the ceiling panel (5) in position and attach it to the mounting rail (14).
(4) Install the assembly seal (13) in the mounting rail (14). Use the 98A25207503000 PULLEY ASSEMBLY - SEALING CORD.
Subtask 25-23-42-420-051-A ** ON A/C NOT FOR ALL (1) Put the trim panel (6) on the mounting structure (12) and hold it in position.
(2) Do the next steps through the openings where the ceiling panels (4), (7) and (5) were installed:
(a) Put the washers (10) in position and install the bolts (9) and the nuts (11).
(b) Remove the CAP-BLANKING from each electrical connector and receptacle.
(c) Make sure that all the electrical connections are clean and in the correct condition.
(d) Connect the electrical connector (8).
(3) Put the ceiling panel (5) in position and attach it to the mounting rail (14).
(4) Install the assembly seal (13) in the mounting rail (14). Use the 98A25207503000 PULLEY ASSEMBLY - SEALING CORD.
B. Installation of the Ceiling Panel(s) (4) and/or (7)
(1) Hold the ceiling panel(s) (4) and/or (7) and carefully push the outboard edge(s) into the mounting bracket.
(2) Carefully move the ceiling panel(s) (4) and/or (7) inboard and attach it/them to the mounting rail (14).
(3) Install the assembly seal (13) in the mounting rail (14). Use the 98A25207503000 PULLEY ASSEMBLY - SEALING CORD.
Subtask 25-23-42-420-052-A ** ON A/C NOT FOR ALL (1) Hold the ceiling panel(s) (4) and/or (7) and carefully push the outboard edge(s) into the mounting bracket.
(2) Carefully move the ceiling panel(s) (4) and/or (7) inboard and attach it/them to the mounting rail (14).
(3) Install the assembly seal (13) in the mounting rail (14). Use the 98A25207503000 PULLEY ASSEMBLY - SEALING CORD.
C. Installation of the Ceiling Panel(s) (2) and/or (3)
(1) Be careful when you install the ceiling panel(s) (2) and/or (3), because other furnishings decrease the available work area.
(2) Put the panel(s) (2) and/or (3) in position and lock the quick-release fasteners (15).
(3) Install the assembly seal (13) in the mounting rail (14). Use the 98A25207503000 PULLEY ASSEMBLY - SEALING CORD.
Subtask 25-23-42-420-053-A ** ON A/C NOT FOR ALL (1) Be careful when you install the ceiling panel(s) (2) and/or (3), because other furnishings decrease the available work area.
(2) Put the panel(s) (2) and/or (3) in position and lock the quick-release fasteners (15).
(3) Install the assembly seal (13) in the mounting rail (14). Use the 98A25207503000 PULLEY ASSEMBLY - SEALING CORD.
D. Installation of the Ceiling Panel (1)
(1) Carefully put the panel (1) in position and lock the quick-release fasteners (15).
Subtask 25-23-42-420-050-B ** ON A/C NOT FOR ALL (1) Carefully put the panel (1) in position and lock the quick-release fasteners (15).
E. Installation of the Ceiling Panel (4)
(1) Put the ceiling panel (4) in position and attach it to the mounting rails (8).
(2) Install the section hose (7) in the mounting rails (8) with the 98A25207503000 PULLEY ASSEMBLY - SEALING CORD.
Subtask 25-23-42-420-051-B ** ON A/C NOT FOR ALL (1) Put the ceiling panel (4) in position and attach it to the mounting rails (8).
(2) Install the section hose (7) in the mounting rails (8) with the 98A25207503000 PULLEY ASSEMBLY - SEALING CORD.
F. Installation of the Ceiling Panels (3) and (5)
(1) Hold the ceiling panels (3) and (5) in position and attach them to the mounting rails (8).
(2) Put the ceiling panels (3) and (5) in position and lock the quick-release fasteners (9).
(3) Install the section hose (7) in the mounting rail (8) with the 98A25207503000 PULLEY ASSEMBLY - SEALING CORD.
Subtask 25-23-42-420-052-B ** ON A/C NOT FOR ALL (1) Hold the ceiling panels (3) and (5) in position and attach them to the mounting rails (8).
(2) Put the ceiling panels (3) and (5) in position and lock the quick-release fasteners (9).
(3) Install the section hose (7) in the mounting rail (8) with the 98A25207503000 PULLEY ASSEMBLY - SEALING CORD.
G. Installation of the Ceiling Panels (2) and (6)
(1) Be careful when you install ceiling panels 221BC (2) and 222BC (6), because other furnishings decrease the available work area.
(2) Hold ceiling panels 221BC (2) and 222BC (6) in position and attach them to the mounting rails (8).
(3) Put ceiling panels 221BC (2) and 222BC (6) in position and lock the quick-release fasteners (9).
(4) Install the section hose (7) in the mounting rails (8) with the 98A25207503000 PULLEY ASSEMBLY - SEALING CORD.
Subtask 25-23-42-420-053-B ** ON A/C NOT FOR ALL (1) Be careful when you install ceiling panels 221BC (2) and 222BC (6), because other furnishings decrease the available work area.
(2) Hold ceiling panels 221BC (2) and 222BC (6) in position and attach them to the mounting rails (8).
(3) Put ceiling panels 221BC (2) and 222BC (6) in position and lock the quick-release fasteners (9).
(4) Install the section hose (7) in the mounting rails (8) with the 98A25207503000 PULLEY ASSEMBLY - SEALING CORD.
H. Installation of the Ceiling Panel (1)
(1) Carefully put ceiling panel 221AC (1) in position and lock the quick-release fasteners (9).
(2) Install the caps (10).
5. Close-up(1) Carefully put ceiling panel 221AC (1) in position and lock the quick-release fasteners (9).
(2) Install the caps (10).
Subtask 25-23-42-865-053-A
A. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 25-23-42-710-050-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | COM/CIDS/DEU B/ESS | 153RH | G03 |
| 49VU | LIGHTING/EMER LT/CABIN | 2WL | H06 |
| 49VU | LIGHTING/EMER LT/CABIN | 1WL | H05 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | LIGHTING/EMER LT/CABIN | 2WL | H04 |
| 49VU | LIGHTING/EMER LT/CABIN | 1WL | H03 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/CIDS/DEU B/NORM | 162RH | M08 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM NAV/CIDS/DEU B/NORM | 162RH | M09 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | COM/CIDS/DEU B/BAT | 143RH | N12 |
| ** ON A/C NOT FOR ALL | |||
| 2000VU | LAV FWD-OCCUPIED | 1WJ | F01 |
| ** ON A/C ALL | |||
| 2000VU | LIGHT-CABIN-ENTRY | 308LG | J02 |
| ** ON A/C NOT FOR ALL | |||
| 2000VU | LAV FWD & MID-OCCUPIED | 1WJ | F01 |
B. Operational Tests
(1) Do the operational test of the ceiling lights (Ref. AMM TASK 33-21-00-710-001).
(2) Do the operational test of the lavatory occupied signs (Ref. AMM TASK 33-26-00-710-001).
(3) Do the operational test of the emergency exit signs (Ref. AMM TASK 33-51-00-710-008).
(4) Do the operational test of the area call panels (Ref. AMM TASK 23-73-00-710-035).
Subtask 25-23-42-740-052-A (1) Do the operational test of the ceiling lights (Ref. AMM TASK 33-21-00-710-001).
(2) Do the operational test of the lavatory occupied signs (Ref. AMM TASK 33-26-00-710-001).
(3) Do the operational test of the emergency exit signs (Ref. AMM TASK 33-51-00-710-008).
(4) Do the operational test of the area call panels (Ref. AMM TASK 23-73-00-710-035).
C. Interface and Power-up Test of the Cabin Intercommunication Data System (CIDS)
(1) Do the interface and power-up test of the CIDS (Ref. AMM TASK 23-73-00-740-005).
Subtask 25-23-42-740-053-A (1) Do the interface and power-up test of the CIDS (Ref. AMM TASK 23-73-00-740-005).
D. BITE Test of the Smoke Detection Function (SDF)
(1) Do the BITE test of the SDF (Ref. AMM TASK 26-10-00-740-801).
Subtask 25-23-42-410-053-A ** ON A/C NOT FOR ALL (1) Do the BITE test of the SDF (Ref. AMM TASK 26-10-00-740-801).
E. Close Access
(1) Install the cameras (Ref. AMM TASK 23-72-51-400-001).
(2) Make sure that the work area is clean and clear of tools and other items.
Subtask 25-23-42-862-050-A (1) Install the cameras (Ref. AMM TASK 23-72-51-400-001).
(2) Make sure that the work area is clean and clear of tools and other items.