DOC AIRBUS | AMM A320FRepair to a layer of Cold Phosphate
TASK 51-75-13-916-003-A
Repair to a layer of Cold Phosphate
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
3. Job Set-up
Subtask 51-75-13-941-052-A
Subtask 51-75-13-120-050-A
Subtask 51-75-13-942-052-A
[Rev.10 from 2021]
2026.04.01 01:34:42 UTC
Repair to a layer of Cold Phosphate
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 | BRUSH - NON METALLIC |
| No specific | 1 | CLOTH-EMERY (GRADE 400) |
| No specific | 1 | HOT AIR SOURCE |
| No specific | 1 | PAPER - MASKING |
| No specific | 1 | TAPE - MASKING |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.08BAA9) | Non Aqueous Cleaner-General - - |
| (Material No.10BDB1) | Phosphoric Acid Surface Pretreatment-Metals Corrosion Removing - |
| (Material No.14SBA1) | Textile-Lint free Cotton - |
Subtask 51-75-13-941-052-A
A. Get access to the applicable area.
4. ProcedureSubtask 51-75-13-120-050-A
A. Repair a layer of Cold Phosphate
(2) Remove the damaged phosphate layer from an area of 20 mm (0.7874 in.) around the repair with the CLOTH-EMERY (GRADE 400).
(3) Clean the area with Non Aqueous Cleaner-General - - (Material No.08BAA9) and the Textile-Lint free Cotton - (Material No.14SBA1) .
(4) Apply a layer of Phosphoric Acid Surface Pretreatment-Metals Corrosion Removing - (Material No.10BDB1) with the BRUSH - NON METALLIC or a clean lintfree cloth.
(5) Let the phosphatic liquid soak into the metal surface for 5 to 15 minutes.
(6) When the surface of the metal has changed to a grey-white color, rinse the area with clean water.
(7) Dry the area with a the HOT AIR SOURCE.
(8) Remove the masking paper or the masking tape.
5. Close-upWARNING:
DO NOT APPLY ADHESIVE TAPE ON THE PROBES, DUCTS, SENSORS (STATIC, PITOT, TAT, AOA). USE ONLY THE SPECIFIED TOOLS FOR THE PROTECTION OF THE AIRCRAFT. THE SPECIFIED TOOLS:
(1) Cover the equipment and fittings adjacent to the area with the PAPER - MASKING or TAPE - MASKING. - GIVE THE CORRECT PROTECTION TO THE AIRCRAFT EQUIPMENT,
- ARE EASY TO SEE FROM THE GROUND,
- ARE EASY TO REMOVE.
(2) Remove the damaged phosphate layer from an area of 20 mm (0.7874 in.) around the repair with the CLOTH-EMERY (GRADE 400).
(3) Clean the area with Non Aqueous Cleaner-General - - (Material No.08BAA9) and the Textile-Lint free Cotton - (Material No.14SBA1) .
(4) Apply a layer of Phosphoric Acid Surface Pretreatment-Metals Corrosion Removing - (Material No.10BDB1) with the BRUSH - NON METALLIC or a clean lintfree cloth.
(5) Let the phosphatic liquid soak into the metal surface for 5 to 15 minutes.
(6) When the surface of the metal has changed to a grey-white color, rinse the area with clean water.
(7) Dry the area with a the HOT AIR SOURCE.
(8) Remove the masking paper or the masking tape.
Subtask 51-75-13-942-052-A
A. Removal of Equipment
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(3) Make an entry in the aircraft logbook and attach a tag on the captain side stick to tell the crew that:
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(3) Make an entry in the aircraft logbook and attach a tag on the captain side stick to tell the crew that:
- Protection covers/devices have been installed.