DOC AIRBUS | AMM A320FRepair of the Cockpit-Door Vertical Edge
TASK 52-51-00-300-802-A
Repair of the Cockpit-Door Vertical Edge
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 52-51-00-010-058-A
Subtask 52-51-00-350-052-A
Subtask 52-51-00-410-054-A
[Rev.10 from 2021]
2026.04.02 06:28:24 UTC
Repair of the Cockpit-Door Vertical Edge
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 | CLOTH-EMERY, FINE |
| No specific | 1 | FILE - ROUND |
| No specific | 1 | PAD - ABRASIVE |
| No specific | 1 | PAPER - ABRASIVE, FINE |
| No specific | 1 | TAPE - ADHESIVE |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.05EJL9) | Epoxy Adhesive-Metal to metal - Legacy |
| (Material No.08BAA9) | Non Aqueous Cleaner-General - - |
| (Material No.08BBF1) | Non Aqueous Cleaner_- Methyl-Ethyl-Ketone - |
| (Material No.10ABC1) | Surface Pretreatment-Light Alloys Chemical Conversion Yellow - |
| (Material No.13FBC6) | Paste Adhesive-Epoxy Core Restoration - |
| (Material No.14SBA1) | Textile-Lint free Cotton - |
| No specific | abrasive cloth grade 80 to 150 |
| No specific | metal sheet AMS 5518 .008 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 52-51-00-820-001-A | Adjustment of the Cockpit Door, Electrical Release Strikes and Latch Mechanisms |
| TASK 52-51-11-960-802-A | Replacement of the Cockpit-Door Aluminum Profile |
| SRM 512111 | |
| SRM 517400 | |
Repair of the Cockpit-Door Vertical EdgeSubtask 52-51-00-010-058-A
A. Get Access
(1) Open the cockpit door.
4. Procedure(1) Open the cockpit door.
Subtask 52-51-00-350-052-A
A. Repair of the Cockpit-Door Vertical Edge
(1) Examine the aluminum profile (1) for damage.
(2) Measure the damage found.
(a) The hand-blending procedure:
1 Use the CLOTH-EMERY, FINE, the PAD - ABRASIVE or the PAPER - ABRASIVE, FINE to abrade the area to a maximum of 10 mm (0.394 in.) around the damage.
2 Make sure that you removed all the damage.
3 Apply Surface Pretreatment-Light Alloys Chemical Conversion Yellow - (Material No.10ABC1) where necessary.
(b) The blending procedure with a rotary file:
1 If depth T is large, use the FILE - ROUND to remove as much material as necessary.
2 Make sure that the thickness of the edge channel is 2 mm (0.079 in.).
3 Abrade the area to a maximum of 10 mm (0.394 in.) around the damage.
4 Make sure that you removed all the damage.
5 Apply Surface Pretreatment-Light Alloys Chemical Conversion Yellow - (Material No.10ABC1) where necessary.
(4) If depth T is more than 50% of the initial profile thickness of 1 mm (0.0394 in.), repair the damaged area.
(5) If you find many types of damage, replace the aluminum profile (1) (Ref. AMM TASK 52-51-11-960-802).
(6) Make the protection plate (2) as follows:
(a) Use the metal sheet AMS 5518 .008 (AISIHARD 301) to make the protection plate (2).
(b) Remove the burrs from the edges of the protection plate (2).
(7) Repair the damaged area as follows:
(a) Examine the area for cracks:
1 If necessary, remove the burrs/damage from the aluminum profile (1) SRM 517400.
(b) Fill the repaired area with Paste Adhesive-Epoxy Core Restoration - (Material No.13FBC6) .
(c) After the adhesive paste cures, polish the surface between the repaired area and the initial profile to make it smooth:
1 Make sure that the surface is 2 mm (0.0787 in.) thick and D is 6 mm (0.2362 in.).
(d) Apply Surface Pretreatment-Light Alloys Chemical Conversion Yellow - (Material No.10ABC1) where necessary.
(8) Prepare the damaged area for a satisfactory bonding:
(a) Use the protection plate (2) as a template to get the contour of the adhesive area on the aluminum profile (1).
(b) Apply the TAPE - ADHESIVE to identify the limits of the bonded area.
(c) Rub the mating surfaces of the aluminum profile (1) with an abrasive cloth grade 80 to 150 to make sure that the surfaces are satisfactory for the bond.
(d) Clean the mating surfaces of the aluminum profile (1) with the Textile-Lint free Cotton - (Material No.14SBA1) and Non Aqueous Cleaner_- Methyl-Ethyl-Ketone - (Material No.08BBF1) .
(e) Repair the surface protection SRM 512111.
(9) Bond the protection plate (2) as follows:
(a) Apply Epoxy Adhesive-Metal to metal - Legacy (Material No.05EJL9) on the mating surface of the protection plate (2). Make sure that the damaged surface is filled with Epoxy Adhesive-Metal to metal - Legacy (Material No.05EJL9) .
(b) Apply the TAPE - ADHESIVE on the protection plate (2) to hold it.
(c) Let the Epoxy Adhesive-Metal to metal - Legacy (Material No.05EJL9) cure.
(10) Clean the repaired area as follows:
(a) Remove the TAPE - ADHESIVE from the surface.
(b) Clean the surface with the Textile-Lint free Cotton - (Material No.14SBA1) and Non Aqueous Cleaner-General - - (Material No.08BAA9) .
(11) Make sure that there is a clearance between the protection plate (2) and the door frame (4).
(12) If necessary, do the adjustment of the cockpit door (3) and the latch mechanism (Ref. AMM TASK 52-51-00-820-001).
5. Close-up(1) Examine the aluminum profile (1) for damage.
(2) Measure the damage found.
NOTE: Repair limit/permitted damage:
(3) If depth T is less than or equal to 50% of the initial profile thickness of 1 mm (0.0394 in.), do one of the blending procedures that follow:- Y= width of the damage removed ( Y > = 40xT)
- T= depth of the material removed.
(a) The hand-blending procedure:
1 Use the CLOTH-EMERY, FINE, the PAD - ABRASIVE or the PAPER - ABRASIVE, FINE to abrade the area to a maximum of 10 mm (0.394 in.) around the damage.
2 Make sure that you removed all the damage.
3 Apply Surface Pretreatment-Light Alloys Chemical Conversion Yellow - (Material No.10ABC1) where necessary.
(b) The blending procedure with a rotary file:
1 If depth T is large, use the FILE - ROUND to remove as much material as necessary.
2 Make sure that the thickness of the edge channel is 2 mm (0.079 in.).
3 Abrade the area to a maximum of 10 mm (0.394 in.) around the damage.
4 Make sure that you removed all the damage.
5 Apply Surface Pretreatment-Light Alloys Chemical Conversion Yellow - (Material No.10ABC1) where necessary.
(4) If depth T is more than 50% of the initial profile thickness of 1 mm (0.0394 in.), repair the damaged area.
(5) If you find many types of damage, replace the aluminum profile (1) (Ref. AMM TASK 52-51-11-960-802).
(6) Make the protection plate (2) as follows:
(a) Use the metal sheet AMS 5518 .008 (AISIHARD 301) to make the protection plate (2).
(b) Remove the burrs from the edges of the protection plate (2).
(7) Repair the damaged area as follows:
(a) Examine the area for cracks:
1 If necessary, remove the burrs/damage from the aluminum profile (1) SRM 517400.
(b) Fill the repaired area with Paste Adhesive-Epoxy Core Restoration - (Material No.13FBC6) .
(c) After the adhesive paste cures, polish the surface between the repaired area and the initial profile to make it smooth:
1 Make sure that the surface is 2 mm (0.0787 in.) thick and D is 6 mm (0.2362 in.).
(d) Apply Surface Pretreatment-Light Alloys Chemical Conversion Yellow - (Material No.10ABC1) where necessary.
(8) Prepare the damaged area for a satisfactory bonding:
(a) Use the protection plate (2) as a template to get the contour of the adhesive area on the aluminum profile (1).
(b) Apply the TAPE - ADHESIVE to identify the limits of the bonded area.
(c) Rub the mating surfaces of the aluminum profile (1) with an abrasive cloth grade 80 to 150 to make sure that the surfaces are satisfactory for the bond.
(d) Clean the mating surfaces of the aluminum profile (1) with the Textile-Lint free Cotton - (Material No.14SBA1) and Non Aqueous Cleaner_- Methyl-Ethyl-Ketone - (Material No.08BBF1) .
(e) Repair the surface protection SRM 512111.
(9) Bond the protection plate (2) as follows:
(a) Apply Epoxy Adhesive-Metal to metal - Legacy (Material No.05EJL9) on the mating surface of the protection plate (2). Make sure that the damaged surface is filled with Epoxy Adhesive-Metal to metal - Legacy (Material No.05EJL9) .
(b) Apply the TAPE - ADHESIVE on the protection plate (2) to hold it.
(c) Let the Epoxy Adhesive-Metal to metal - Legacy (Material No.05EJL9) cure.
(10) Clean the repaired area as follows:
(a) Remove the TAPE - ADHESIVE from the surface.
(b) Clean the surface with the Textile-Lint free Cotton - (Material No.14SBA1) and Non Aqueous Cleaner-General - - (Material No.08BAA9) .
(11) Make sure that there is a clearance between the protection plate (2) and the door frame (4).
(12) If necessary, do the adjustment of the cockpit door (3) and the latch mechanism (Ref. AMM TASK 52-51-00-820-001).
Subtask 52-51-00-410-054-A
A. Put the aircraft back to its initial configuration.
(1) Make sure that the work area is clean and clear of tools and other items.
(1) Make sure that the work area is clean and clear of tools and other items.