DOC AIRBUS | AMM A320FRepairs of Cabin Polycarbonate Sheet Components
TASK 25-00-00-340-002-A
Repairs of Cabin Polycarbonate Sheet 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 25-00-00-861-057-A Subtask 25-00-00-020-063-A
Subtask 25-00-00-340-052-A
Subtask 25-00-00-942-072-A
[Rev.10 from 2021]
2026.03.31 23:27:35 UTC
Repairs of Cabin Polycarbonate Sheet 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 320 - 400) |
| No specific | 1 | CUTTER - THIN BLADE |
| No specific | 1 | PLATE - BASE, RUBBER |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.05FCE1) | Polyurethane Adhesive-Equipment & Furnishing Two parts - |
| (Material No.08BBD1) | Non Aqueous Cleaner-- Isopropyl Alcohol - |
| (Material No.13ABC1) | Dry glass fabric-4H Satin 105 gsm - 120 style SRM Type 2 - |
| (Material No.14SBA1) | Textile-Lint free Cotton - |
| No specific | separating foil |
| 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 25-20-00-370-006-A | Repair of the Paint Coat on Components |
Single Sheet of PCSubtask 25-00-00-861-057-A Subtask 25-00-00-020-063-A
B. If necessary, remove the component you will repair from the aircraft (refer to the related AMM chapter).
4. ProcedureSubtask 25-00-00-340-052-A
A. Repair of the Component
(2) Remove the damage that has gone through the component with a CUTTER - THIN BLADE.
(3) Clean the repair with Non Aqueous Cleaner-- Isopropyl Alcohol - (Material No.08BBD1) and a lint-free cotton cloth Textile-Lint free Cotton - (Material No.14SBA1) .
(4) Repair the damage that is less than 10 mm (0.4 in.) in diameter:
(b) Put the component (3), front face down, on a PLATE - BASE, RUBBER (2).
(c) Fill the damaged area with Polyurethane Adhesive-Equipment & Furnishing Two parts - (Material No.05FCE1) (4).
(d) Let the adhesive cure for 1 hour.
(e) Remove the separating foil (1) from the component (3).
(f) Fill the areas that are not smooth with Polyurethane Adhesive-Equipment & Furnishing Two parts - (Material No.05FCE1) .
(g) If necessary, make the repair area smooth with a CLOTH-EMERY (GRADE 320 - 400).
(5) Repair to a damaged area that is 10 mm (0.4 in.) or larger in diameter:
(a) Make an insert from the applicable PC material.
(b) Chamfer the edges of the component (5) to 45 degrees.
(c) Chamfer the edges of the insert (7) to 45 degrees.
(d) Apply the separating foil (1) to the front face of the component (5).
(e) Put the component (5), front face down, on a PLATE - BASE, RUBBER (2).
(f) Make the repair area smooth with a CLOTH-EMERY (GRADE 320 - 400).
(g) Clean the repair area with Non Aqueous Cleaner-- Isopropyl Alcohol - (Material No.08BBD1) and a lint-free cotton cloth Textile-Lint free Cotton - (Material No.14SBA1) .
(h) Bond the insert (7) to the component (5) with Polyurethane Adhesive-Equipment & Furnishing Two parts - (Material No.05FCE1) .
(i) Make a stiffener from Dry glass fabric-4H Satin 105 gsm - 120 style SRM Type 2 - (Material No.13ABC1) (6).
(j) Apply the Polyurethane Adhesive-Equipment & Furnishing Two parts - (Material No.05FCE1) to the repair area.
(k) Apply the Dry glass fabric-4H Satin 105 gsm - 120 style SRM Type 2 - (Material No.13ABC1) , (6) to the repair area.
(m) Fill the areas that are not flat with Polyurethane Adhesive-Equipment & Furnishing Two parts - (Material No.05FCE1) .
(n) If necessary, make the area of the repair smooth with a CLOTH-EMERY (GRADE 320 - 400).
Subtask 25-00-00-420-065-A WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
(1) If the component is cracked, you must stop-drill the ends of the crack. (2) Remove the damage that has gone through the component with a CUTTER - THIN BLADE.
(3) Clean the repair with Non Aqueous Cleaner-- Isopropyl Alcohol - (Material No.08BBD1) and a lint-free cotton cloth Textile-Lint free Cotton - (Material No.14SBA1) .
(4) Repair the damage that is less than 10 mm (0.4 in.) in diameter:
NOTE: Only do this repair when the distance from the damaged area to a support or attachment point is more than 40 times the component thickness.
(a) Apply the separating foil (1) to the front face of the component (3). (b) Put the component (3), front face down, on a PLATE - BASE, RUBBER (2).
(c) Fill the damaged area with Polyurethane Adhesive-Equipment & Furnishing Two parts - (Material No.05FCE1) (4).
(d) Let the adhesive cure for 1 hour.
(e) Remove the separating foil (1) from the component (3).
(f) Fill the areas that are not smooth with Polyurethane Adhesive-Equipment & Furnishing Two parts - (Material No.05FCE1) .
(g) If necessary, make the repair area smooth with a CLOTH-EMERY (GRADE 320 - 400).
(5) Repair to a damaged area that is 10 mm (0.4 in.) or larger in diameter:
(a) Make an insert from the applicable PC material.
(b) Chamfer the edges of the component (5) to 45 degrees.
(c) Chamfer the edges of the insert (7) to 45 degrees.
(d) Apply the separating foil (1) to the front face of the component (5).
(e) Put the component (5), front face down, on a PLATE - BASE, RUBBER (2).
(f) Make the repair area smooth with a CLOTH-EMERY (GRADE 320 - 400).
(g) Clean the repair area with Non Aqueous Cleaner-- Isopropyl Alcohol - (Material No.08BBD1) and a lint-free cotton cloth Textile-Lint free Cotton - (Material No.14SBA1) .
(h) Bond the insert (7) to the component (5) with Polyurethane Adhesive-Equipment & Furnishing Two parts - (Material No.05FCE1) .
(i) Make a stiffener from Dry glass fabric-4H Satin 105 gsm - 120 style SRM Type 2 - (Material No.13ABC1) (6).
(j) Apply the Polyurethane Adhesive-Equipment & Furnishing Two parts - (Material No.05FCE1) to the repair area.
(k) Apply the Dry glass fabric-4H Satin 105 gsm - 120 style SRM Type 2 - (Material No.13ABC1) , (6) to the repair area.
NOTE: The thickness of the Dry glass fabric-4H Satin 105 gsm - 120 style SRM Type 2 - (Material No.13ABC1) (6) must equal 0.5 times the component thickness. The minimum distance from the edge of the stiffener to the insert must equal 20 times the component thickness.
NOTE: With flat components, a polycarbonate sheet equal to the component thickness is bonded to the component as an alternative to the Dry glass fabric-4H Satin 105 gsm - 120 style SRM Type 2 - (Material No.13ABC1) .
(l) Remove the separating foil (1) from the component (5). (m) Fill the areas that are not flat with Polyurethane Adhesive-Equipment & Furnishing Two parts - (Material No.05FCE1) .
(n) If necessary, make the area of the repair smooth with a CLOTH-EMERY (GRADE 320 - 400).
NOTE: Allow the bonding and adhesive compounds to harden before you use the emery cloth.
(6) If necessary, apply a top layer (Ref. AMM TASK 25-20-00-370-006). B. Installation of the removed Component
(1) If you have removed the component to do the repair, install the component in the aircraft (refer to the related AMM chapter).
5. Close-up(1) If you have removed the component to do the repair, install the component in the aircraft (refer to the related AMM chapter).
Subtask 25-00-00-942-072-A
A. Close-up
(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.
Subtask 25-00-00-862-058-A (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.