DOC AIRBUS | AMM A320FRepair of Minor Damage on Titanium, Forged Aluminum, or Steel Components
TASK 51-73-11-300-002-A
Repair of Minor Damage on Titanium, Forged Aluminum, or Steel Components
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 51-73-11-941-053-A
Subtask 51-73-11-320-055-A
Subtask 51-73-11-942-053-A
[Rev.10 from 2021]
2026.04.01 12:44:50 UTC
Repair of Minor Damage on Titanium, Forged Aluminum, or Steel Components
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 (GRADE 280) |
| No specific | 1 | CLOTH-EMERY (GRADE 400) |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.08BAA9) | Non Aqueous Cleaner-General - - |
| (Material No.08BBB1) | Non Aqueous Cleaner-- Petroleum Based - |
| (Material No.10ABC1) | Surface Pretreatment-Light Alloys Chemical Conversion Yellow - |
| (Material No.14EEA1) | Polishing Paste-Aluminium Alloys - - |
| (Material No.14SBA1) | Textile-Lint free Cotton - |
| No specific | ROUNDED SCOTCH STONE |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 51-74-11-300-001-A | Repair of Corroded Areas |
| TASK 51-75-12-300-001-A | Repair of Major Paint Damage on Light Alloy and Composite Material |
Subtask 51-73-11-941-053-A
A. Get access to the area of the damage.
4. ProcedureSubtask 51-73-11-320-055-A
A. Repair of Minor Damage
(1) If necessary, remove any corrosion (Ref. AMM TASK 51-74-11-300-001).
(2) Measure the depth of the scratch.
(3) Refer to the ASRM 51-73-00 and the applicable ASRM-chapter 52 thru 57 for the permitted depth limits.
(4) Clean the repair area with Non Aqueous Cleaner-General - - (Material No.08BAA9) and a Textile-Lint free Cotton - (Material No.14SBA1) .
(5) For damage to titanium:
(b) Remove the scratch with a ROUNDED SCOTCH STONE and water. Move the scotch stone along the scratch until the contour is smooth and rounded.
(c) Rub the roughened area with CLOTH-EMERY (GRADE 400) and Non Aqueous Cleaner-- Petroleum Based - (Material No.08BBB1) . Rub along the length of the scratch until the surface is smooth.
(d) Clean the area with Non Aqueous Cleaner-General - - (Material No.08BAA9) and a Textile-Lint free Cotton - (Material No.14SBA1) .
(e) Polish the bare metal with Polishing Paste-Aluminium Alloys - - (Material No.14EEA1) and a Textile-Lint free Cotton - (Material No.14SBA1) .
(6) For damage to forged aluminum:
(a) Remove the paint from the area of the damage with abrasive cloth grade 280.
(b) Remove the scratch with abrasive cloth grade 400. Rub along the length of the scratch until the surface is smooth.
(c) Clean the area with Non Aqueous Cleaner-General - - (Material No.08BAA9) and a lint-free cloth.
(d) Polish the bare metal with Polishing Paste-Aluminium Alloys - - (Material No.14EEA1) and a lint-free cloth.
(f) Apply Surface Pretreatment-Light Alloys Chemical Conversion Yellow - (Material No.10ABC1) to the metal surface.
(7) For damage to steel components:
(a) Remove the paint from the area of the damage with abrasive cloth grade 280.
(b) Remove the scratch with a rounded scotch stone and water. Move the scotch stone along the scratch until the contour is smooth and rounded.
(c) Rub the roughened area with abrasive cloth grade 400. Rub along the length of the scratch until the surface is smooth.
(d) Clean the area with Non Aqueous Cleaner-General - - (Material No.08BAA9) and a lint-free cloth.
(e) Polish the bare metal with Polishing Paste-Aluminium Alloys - - (Material No.14EEA1) and a lint-free cloth:
(8) Apply the applicable surface protection (Ref. AMM TASK 51-75-12-300-001).
5. Close-up(1) If necessary, remove any corrosion (Ref. AMM TASK 51-74-11-300-001).
(2) Measure the depth of the scratch.
(3) Refer to the ASRM 51-73-00 and the applicable ASRM-chapter 52 thru 57 for the permitted depth limits.
(4) Clean the repair area with Non Aqueous Cleaner-General - - (Material No.08BAA9) and a Textile-Lint free Cotton - (Material No.14SBA1) .
(5) For damage to titanium:
CAUTION:
USE WATER WHEN YOU GRIND TITANIUM. TITANIUM DUST IS FLAMMABLE.
(a) Remove the paint from the area of the damage with CLOTH-EMERY (GRADE 280). (b) Remove the scratch with a ROUNDED SCOTCH STONE and water. Move the scotch stone along the scratch until the contour is smooth and rounded.
(c) Rub the roughened area with CLOTH-EMERY (GRADE 400) and Non Aqueous Cleaner-- Petroleum Based - (Material No.08BBB1) . Rub along the length of the scratch until the surface is smooth.
(d) Clean the area with Non Aqueous Cleaner-General - - (Material No.08BAA9) and a Textile-Lint free Cotton - (Material No.14SBA1) .
(e) Polish the bare metal with Polishing Paste-Aluminium Alloys - - (Material No.14EEA1) and a Textile-Lint free Cotton - (Material No.14SBA1) .
NOTE: Rub the area in the direction of the scratch. Do not rub in a circular motion. Make sure you remove all the rough surfaces.
(f) Clean the area with Non Aqueous Cleaner-General - - (Material No.08BAA9) and a clean cloth. (6) For damage to forged aluminum:
(a) Remove the paint from the area of the damage with abrasive cloth grade 280.
(b) Remove the scratch with abrasive cloth grade 400. Rub along the length of the scratch until the surface is smooth.
(c) Clean the area with Non Aqueous Cleaner-General - - (Material No.08BAA9) and a lint-free cloth.
(d) Polish the bare metal with Polishing Paste-Aluminium Alloys - - (Material No.14EEA1) and a lint-free cloth.
NOTE: Rub the area in the direction of the scratch. Do not use a circular motion. Make sure you remove all the rough surfaces.
(e) Clean the area with Non Aqueous Cleaner-General - - (Material No.08BAA9) and a clean cloth. (f) Apply Surface Pretreatment-Light Alloys Chemical Conversion Yellow - (Material No.10ABC1) to the metal surface.
(7) For damage to steel components:
(a) Remove the paint from the area of the damage with abrasive cloth grade 280.
(b) Remove the scratch with a rounded scotch stone and water. Move the scotch stone along the scratch until the contour is smooth and rounded.
(c) Rub the roughened area with abrasive cloth grade 400. Rub along the length of the scratch until the surface is smooth.
(d) Clean the area with Non Aqueous Cleaner-General - - (Material No.08BAA9) and a lint-free cloth.
(e) Polish the bare metal with Polishing Paste-Aluminium Alloys - - (Material No.14EEA1) and a lint-free cloth:
NOTE: Rub the area in the direction of the scratch. Do not rub in a circular motion. Make sure you remove all the rough surface.
(f) Clean the area with Non Aqueous Cleaner-General - - (Material No.08BAA9) and a clean cloth. (8) Apply the applicable surface protection (Ref. AMM TASK 51-75-12-300-001).
Subtask 51-73-11-942-053-A
A. Remove the ground support and maintenance equipment, the special and standard tools and all other items.