DOC AIRBUS | AMM A320FRepair of the Plastic Wash Basin
TASK 25-40-00-340-001-A
Repair of the Plastic Wash Basin
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Referenced Information
3. Job Set-up
Subtask 25-40-00-861-062-A 4. Procedure
Subtask 25-40-00-330-050-B
Subtask 25-40-00-942-055-A
[Rev.10 from 2021]
2026.03.31 23:34:59 UTC
Repair of the Plastic Wash Basin
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
ZONE: 200
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 | PLIERS - NOSE, SOFT, LONG |
| No specific | 1 | WARNING NOTICE(S) |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.05EJL9) | Epoxy Adhesive-Metal to metal - Legacy |
| (Material No.05RAM1) | Adhesive Film Tape-- Film Polyester Transparent Low Adhesion - |
| (Material No.05RDA1) | Adhesive Film Tape-Masking - - |
| (Material No.08BBD1) | Non Aqueous Cleaner-- Isopropyl Alcohol - |
| (Material No.08BBE1) | Non Aqueous Cleaner-- Methyl Alcohol - |
| (Material No.14FAB1) | Abrasive-- Scotch Brite Pads - |
| (Material No.14SBA1) | Textile-Lint free Cotton - |
| No specific | DCIN900 VARICOR repair kit |
| No specific | WOODEN BLOCK |
| No specific | abrasive paper, grain 180 |
| No specific | abrasive paper, grain 220 |
| No specific | abrasive paper, grain 320 |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 200 | UPPER HALF FUSELAGE |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 12-21-12-100-009-A | Cleaning of the Plastic Wash Basin in the Lavatories |
| 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 25-45-15-000-001-A | Removal of the Waste Chute Flap |
| TASK 25-45-15-400-001-A | Installation of the Waste Chute Flap |
| TASK 25-45-17-400-001-A | Installation of the Waste Box |
Waste Chute FlapSubtask 25-40-00-861-062-A 4. Procedure
Subtask 25-40-00-330-050-B
A. Removal of Scratches
(1) Remove the scratches up to a depth 0.3mm (0.012 in.) with abrasive paper.
Subtask 25-40-00-340-051-A (1) Remove the scratches up to a depth 0.3mm (0.012 in.) with abrasive paper.
NOTE: The grade of grain of the abrasive paper depends on the depth of the scratches.
(a) Make the repair area smooth with: - abrasive paper, grain 180,
- abrasive paper, grain 220,
- abrasive paper, grain 320
- or
use the SCOTCH BRITE PADS Abrasive-- Scotch Brite Pads - (Material No.14FAB1) .
B. Repair of the Waste-Chute Flap
(1) Remove the waste-chute flap (Ref. AMM TASK 25-45-15-000-001).
(2) Use a CLOTH-EMERY (GRADE 320 - 400) to remove the old bonding material from the hinge (1) and the waste-chute flap (4) (Step 1).
(3) Use the Non Aqueous Cleaner-- Isopropyl Alcohol - (Material No.08BBD1) and a lint-free cotton cloth Textile-Lint free Cotton - (Material No.14SBA1) to clean the bonding surfaces of the hinge (1) and the waste-chute flap (4).
(4) Install the screws (3) on the hinge (1) and put the hinge (1) to the loaded position (Step 2).
(5) Put the Adhesive Film Tape-- Film Polyester Transparent Low Adhesion - (Material No.05RAM1) (2) 10 mm (0.4 in.) wide around the hinge (1) until the tape holds it in the loaded position.
(6) Apply the Epoxy Adhesive-Metal to metal - Legacy (Material No.05EJL9) to the surface of the hinge (1) to be bonded.
(7) Put the hinge (1) in position and tighten the screws (3).
(8) Put the waste-chute flap (4) in position from under the wash basin and hold it.
(9) Cut the tape (2) and allow the hinge (1) to come against the waste-chute flap (4) (Step 3).
(11) Use the Non Aqueous Cleaner-- Isopropyl Alcohol - (Material No.08BBD1) and a lint-free cotton cloth Textile-Lint free Cotton - (Material No.14SBA1) to remove unwanted bonding material.
(12) Put the WARNING NOTICE(S) in position to tell persons not to operate the waste-chute flap for 2 hours.
(13) Install the waste box (Ref. AMM TASK 25-45-17-400-001).
(14) Install the damper as necessary (Ref. AMM TASK 25-45-15-400-001).
(15) Push and release the waste-chute flap (4) to make sure it operates correctly.
Subtask 25-40-00-340-052-A (1) Remove the waste-chute flap (Ref. AMM TASK 25-45-15-000-001).
(2) Use a CLOTH-EMERY (GRADE 320 - 400) to remove the old bonding material from the hinge (1) and the waste-chute flap (4) (Step 1).
(3) Use the Non Aqueous Cleaner-- Isopropyl Alcohol - (Material No.08BBD1) and a lint-free cotton cloth Textile-Lint free Cotton - (Material No.14SBA1) to clean the bonding surfaces of the hinge (1) and the waste-chute flap (4).
(4) Install the screws (3) on the hinge (1) and put the hinge (1) to the loaded position (Step 2).
(5) Put the Adhesive Film Tape-- Film Polyester Transparent Low Adhesion - (Material No.05RAM1) (2) 10 mm (0.4 in.) wide around the hinge (1) until the tape holds it in the loaded position.
(6) Apply the Epoxy Adhesive-Metal to metal - Legacy (Material No.05EJL9) to the surface of the hinge (1) to be bonded.
(7) Put the hinge (1) in position and tighten the screws (3).
(8) Put the waste-chute flap (4) in position from under the wash basin and hold it.
(9) Cut the tape (2) and allow the hinge (1) to come against the waste-chute flap (4) (Step 3).
NOTE: Part of the tape will stay with the hinge.
NOTE: The bond between the joints will take approximately 2 hours to dry.
(10) Visually examine the waste-chute flap (4) to make sure it is engaged correctly. (11) Use the Non Aqueous Cleaner-- Isopropyl Alcohol - (Material No.08BBD1) and a lint-free cotton cloth Textile-Lint free Cotton - (Material No.14SBA1) to remove unwanted bonding material.
(12) Put the WARNING NOTICE(S) in position to tell persons not to operate the waste-chute flap for 2 hours.
(13) Install the waste box (Ref. AMM TASK 25-45-17-400-001).
(14) Install the damper as necessary (Ref. AMM TASK 25-45-15-400-001).
(15) Push and release the waste-chute flap (4) to make sure it operates correctly.
C. Repair of the Waste Flap Area
(1) Prepare the repair area:
(a) Push the waste flap (1) and set it in the open position.
(b) Transfer the contour of the replacement part (3), item of the DCIN900 VARICOR repair kit to the damaged area of the wash basin (2).
(c) Carefully remove the unwanted material with a CUTTER - THIN BLADE.
(e) Put the replacement part (3) in position on the wash basin (2) and make sure that it has the correct dimensions.
(2) Install the Replacement Part:
(a) Make sure that the ambient temperature of the repair area is not less than 18 deg.C (64.40 deg.F).
(b) Clean the mating surfaces of the repair with Non Aqueous Cleaner-- Methyl Alcohol - (Material No.08BBE1) and a lint-free cotton cloth Textile-Lint free Cotton - (Material No.14SBA1) .
(c) Put the Adhesive Film Tape-Masking - - (Material No.05RDA1) in position on the lower surface of the wash basin (2).
(d) Apply the prepared adhesive, part of the DCIN900 VARICOR repair kit to the repair area of the wash basin.
(f) Let the repair cure at a temperature of:
20 deg.C (68.00 deg.F) for 6 hours,
25 deg.C (77.00 deg.F) for 4 hours,
30 deg.C (86.00 deg.F) for 3 hours
(3) Make the repair area smooth with:
(5) Release the flap (1) and make sure that it closes correctly.
5. Close-up(1) Prepare the repair area:
(a) Push the waste flap (1) and set it in the open position.
(b) Transfer the contour of the replacement part (3), item of the DCIN900 VARICOR repair kit to the damaged area of the wash basin (2).
(c) Carefully remove the unwanted material with a CUTTER - THIN BLADE.
NOTE: The material thickness of the replacement part (3) is 4.0 mm (0.16 in.).
(d) Chamfer the lower contoured edge of the replacement part (3). (e) Put the replacement part (3) in position on the wash basin (2) and make sure that it has the correct dimensions.
(2) Install the Replacement Part:
(a) Make sure that the ambient temperature of the repair area is not less than 18 deg.C (64.40 deg.F).
(b) Clean the mating surfaces of the repair with Non Aqueous Cleaner-- Methyl Alcohol - (Material No.08BBE1) and a lint-free cotton cloth Textile-Lint free Cotton - (Material No.14SBA1) .
(c) Put the Adhesive Film Tape-Masking - - (Material No.05RDA1) in position on the lower surface of the wash basin (2).
(d) Apply the prepared adhesive, part of the DCIN900 VARICOR repair kit to the repair area of the wash basin.
NOTE: Obey the manufacturers instructions.
(e) Put the replacement part (3) in position with a light pressure and set it with a PLIERS - NOSE, SOFT, LONG or a WOODEN BLOCK. (f) Let the repair cure at a temperature of:
20 deg.C (68.00 deg.F) for 6 hours,
25 deg.C (77.00 deg.F) for 4 hours,
30 deg.C (86.00 deg.F) for 3 hours
NOTE: Obey the manufacturers instructions.
(g) Remove the pliers or the wooden block and the masking tape. (3) Make the repair area smooth with:
- The abrasive paper, grain 180
- The abrasive paper, grain 220
- The abrasive paper, grain 320
and - The abrasive fleece
parts of the DCIN900 VARICOR repair kit.
(5) Release the flap (1) and make sure that it closes correctly.
Subtask 25-40-00-942-055-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 25-40-00-862-063-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.