DOC AIRBUS | AMM A320FInstallation of the Lining on the Emergency Exit Hatches
TASK 25-23-47-400-001-A
Installation of the Lining on the Emergency Exit Hatches
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Referenced Information
3. Job Set-up
Subtask 25-23-47-860-077-A ** ON A/C NOT FOR ALL
Subtask 25-23-47-420-050-A ** ON A/C NOT FOR ALL
Subtask 25-23-47-410-065-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 03:55:00 UTC
Installation of the Lining on the Emergency Exit Hatches
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 | CHAMOIS LEATHER |
| No specific | 1 | SPONGE |
| No specific | AR | SPRING BALANCE 5 DAN (12 LBF) |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.08ACA1) | Aqueous Cleaner-Aircraft Interior - - |
| (Material No.14SBA1) | Textile-Lint free Cotton - |
| REFERENCE | DESIGNATION |
|---|---|
| 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 52-10-00-410-001-A | Closing of the Passenger/Crew Door |
| TASK 52-21-11-000-001-A | Removal of the Emergency Exit Hatch |
| TASK 52-21-11-400-001-A | Installation of the Emergency Exit Hatch |
| TASK 52-71-13-400-001-A | Installation of the Proximity Switches |
Subtask 25-23-47-860-077-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
(1) Make sure that the access platform is in position at the emergency exit hatches.
(2) Make sure that the ground service network is energized
(Ref. AMM TASK 24-42-00-861-001).
(3) Make sure that the emergency exit hatch is removed (Ref. AMM TASK 52-21-11-000-001).
(4) Make sure that the emergency exit hatch is put on an applicable fixture.
(5) Clean the component interfaces and the adjacent area.
(6) Do an inspection of the component interfaces and the adjacent area.
(7) Make sure that the parts retained from the removed component are clean and in the correct condition.
4. Procedure(1) Make sure that the access platform is in position at the emergency exit hatches.
(2) Make sure that the ground service network is energized
(Ref. AMM TASK 24-42-00-861-001).
(3) Make sure that the emergency exit hatch is removed (Ref. AMM TASK 52-21-11-000-001).
(4) Make sure that the emergency exit hatch is put on an applicable fixture.
(5) Clean the component interfaces and the adjacent area.
(6) Do an inspection of the component interfaces and the adjacent area.
(7) Make sure that the parts retained from the removed component are clean and in the correct condition.
Subtask 25-23-47-420-050-A ** ON A/C NOT FOR ALL
A. Installation of the Lining
Lining - Emergency Exit Hatch ** ON A/C NOT FOR ALL
Lining - Emergency Exit Hatch ** ON A/C NOT FOR ALL
(1) Make sure that the work area is clean and clear of tools and other items.
(2) If necessary clean the window pane(s).
(a) Make sure that the window panes are free from abrasive particles.
(b) Clean the window panes with clean warm water.
(c) Clean the window panes with a weak solution of soap and water. Use a clean SPONGE and / or CHAMOIS LEATHER.
(d) Remove the soap solution with clean warm water.
(e) Dry the components with a clean CHAMOIS LEATHER.
(f) If necessary, remove remaining contamination with Aqueous Cleaner-Aircraft Interior - - (Material No.08ACA1) .
(g) Remove the cleaner with clean water.
(h) Apply anti-static treatment to the window panes.
(i) Let the window panes dry.
(j) Make sure that the window panes are dry and polish them with a Textile-Lint free Cotton - (Material No.14SBA1) .
(3) Put the lining (2) in position on the emergency exit hatch (1) and install the washers (4), (6) and the screws (3), (5).
Subtask 25-23-47-410-071-A ** ON A/C NOT FOR ALL Subtask 25-23-47-420-127-B ** ON A/C NOT FOR ALL Lining - Emergency Exit Hatch ** ON A/C NOT FOR ALL Lining - Emergency Exit Hatch ** ON A/C NOT FOR ALL (2) If necessary clean the window pane(s).
(a) Make sure that the window panes are free from abrasive particles.
(b) Clean the window panes with clean warm water.
(c) Clean the window panes with a weak solution of soap and water. Use a clean SPONGE and / or CHAMOIS LEATHER.
(d) Remove the soap solution with clean warm water.
(e) Dry the components with a clean CHAMOIS LEATHER.
(f) If necessary, remove remaining contamination with Aqueous Cleaner-Aircraft Interior - - (Material No.08ACA1) .
(g) Remove the cleaner with clean water.
(h) Apply anti-static treatment to the window panes.
(i) Let the window panes dry.
(j) Make sure that the window panes are dry and polish them with a Textile-Lint free Cotton - (Material No.14SBA1) .
(3) Put the lining (2) in position on the emergency exit hatch (1) and install the washers (4), (6) and the screws (3), (5).
C. Installation of the Cover Flap
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Engage the brackets (3) of the cover flap (1) and push the cover flap (1) on the lining (9).
(3) Make sure that the fastener (5) engages correctly to the aircraft structure.
(4) If adjustment of the fastener (5) is necessary:
(a) Loosen the screws (6) or (8).
(b) Move the adjustment plate (7) to the correct position and tighten the screws (6) or (8).
Subtask 25-23-47-720-050-B ** ON A/C NOT FOR ALL (1) Make sure that the work area is clean and clear of tools and other items.
(2) Engage the brackets (3) of the cover flap (1) and push the cover flap (1) on the lining (9).
(3) Make sure that the fastener (5) engages correctly to the aircraft structure.
(4) If adjustment of the fastener (5) is necessary:
(a) Loosen the screws (6) or (8).
(b) Move the adjustment plate (7) to the correct position and tighten the screws (6) or (8).
D. Test
(1) Do the test of the opening force of the cover flap (1):
(b) Pull the spring scale (2) inboard, at a right angle to the cover flap (1).
(c) Make sure that the force which is necessary to open the cover flap (1) is 4.0 +1.0 daN or -1.0 daN (8.9924 +2.2481 lbf or -2.2481 lbf).
(d) If adjustment is necessary, move the arms of the fastener (5) together.
(e) Make sure that the proximity sensor of the door warning system has the correct target value (Ref. AMM TASK 52-71-13-400-001).
5. Close-up(1) Do the test of the opening force of the cover flap (1):
NOTE: The test procedure is the same for all emergency exit hatches.
(a) Attach a SPRING BALANCE 5 DAN (12 LBF) (2) to the grip of the cover flap (1). (b) Pull the spring scale (2) inboard, at a right angle to the cover flap (1).
(c) Make sure that the force which is necessary to open the cover flap (1) is 4.0 +1.0 daN or -1.0 daN (8.9924 +2.2481 lbf or -2.2481 lbf).
(d) If adjustment is necessary, move the arms of the fastener (5) together.
(e) Make sure that the proximity sensor of the door warning system has the correct target value (Ref. AMM TASK 52-71-13-400-001).
Subtask 25-23-47-410-065-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 the passenger/crew door (Ref. AMM TASK 52-10-00-410-001)
(3) Remove the access platform(s).
Subtask 25-23-47-862-061-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 the passenger/crew door (Ref. AMM TASK 52-10-00-410-001)
(3) Remove the access platform(s).