DOC AIRBUS | AMM A320FInstallation of the Hoisting-Point Cover Patches
TASK 11-00-00-400-022-A
Installation of the Hoisting-Point Cover Patches
This procedure gives the information related to the installation of the hoisting-point cover patches at:
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Referenced Information
3. Job Set-up
Subtask 11-00-00-941-060-A
Subtask 11-00-00-916-057-A
Subtask 11-00-00-942-075-A
[Rev.10 from 2021]
2026.03.31 22:53:58 UTC
Installation of the Hoisting-Point Cover Patches
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
1. Reason for the JobThis procedure gives the information related to the installation of the hoisting-point cover patches at:
- The passenger/crew doors and the cargo compartment doors
- The wings
- The stabilizers
- The rudder
- The fuselage.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | BRUSH - BRISTLED, SOFT |
| No specific | 1 | PAPER - ABRASIVE (GRADE 320) |
| No specific | 1 | SQUEEGEE |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.04JAA3) | Top Coat Polyurethane_- - External Structure |
| (Material No.04SBA3) | Varnish Polyurethane-Low VOC - External Structure |
| (Material No.05RAB9) | Adhesive Film Tape-- Aluminium Foil - |
| (Material No.05TNB1) | Adhesive Tape-Hoisting points PVC Disks - |
| (Material No.05VGM3) | Adhesive Deco. Film-Marking - External Structure |
| (Material No.08BAA9) | Non Aqueous Cleaner-General - - |
| (Material No.10ABC1) | Surface Pretreatment-Light Alloys Chemical Conversion Yellow - |
| (Material No.14FAB1) | Abrasive-- Scotch Brite Pads - |
| (Material No.14SBA1) | Textile-Lint free Cotton - |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 51-75-12-300-003-A | Repair of Minor Paint Damage (Topcoat Only) |
| AIPC 11-21-52- | |
| AIPC 11-21-53- | |
| AIPC 11-21-89- | |
| AIPC 11-23-27- | |
| AIPC 11-23-85- | |
| AIPC 11-25-27- | |
| AIPC 11-25-55- | |
| AIPC 11-25-87- | |
Sealing of the Hoisting-Point Cover PatchesSubtask 11-00-00-941-060-A
A. Get Access
(1) Get access to the area where you must install the hoisting-point cover patches.
4. Procedure(1) Get access to the area where you must install the hoisting-point cover patches.
Subtask 11-00-00-916-057-A
A. Painting
(a) Paint the patch surface with Top Coat Polyurethane_- - External Structure (Material No.04JAA3) of the same color as the adjacent area (Ref. AMM TASK 51-75-12-300-003).
(b) Let the paint dry.
(2) Before you install Adhesive Film Tape-- Aluminium Foil - (Material No.05RAB9) :
(a) Apply the chromate treatment (alodine) with Surface Pretreatment-Light Alloys Chemical Conversion Yellow - (Material No.10ABC1) on the aluminum foil surface.
(b) Let the paint dry.
Subtask 11-00-00-420-054-A ** ON A/C NOT FOR ALL NOTE: The aluminum cover patches, Adhesive Tape-Hoisting points PVC Disks - (Material No.05TNB1) , the PVC (Polyvinyl Chloride) cover patches and Adhesive Deco. Film-Marking - External Structure (Material No.05VGM3) or Adhesive Film Tape-- Aluminium Foil - (Material No.05RAB9) can be used as protection at the hoisting point locations (refer to Para. B).
(1) Before you install the PVC cover patches: (a) Paint the patch surface with Top Coat Polyurethane_- - External Structure (Material No.04JAA3) of the same color as the adjacent area (Ref. AMM TASK 51-75-12-300-003).
(b) Let the paint dry.
(2) Before you install Adhesive Film Tape-- Aluminium Foil - (Material No.05RAB9) :
(a) Apply the chromate treatment (alodine) with Surface Pretreatment-Light Alloys Chemical Conversion Yellow - (Material No.10ABC1) on the aluminum foil surface.
(b) Let the paint dry.
B. Installation of the Hoisting-Point Cover Patches
(1) For the location of the hoisting-point cover patches, refer to:
(a) AIPC 11-21-52- for the doors
(b) AIPC 11-21-53- for the fuselage
(c) AIPC 11-23-27- for the wings
(d) AIPC 11-25-27- for the stabilizer, and
(e) AIPC 11-25-55- for the rudder.
(2) Clean the skin surface around the hoisting points as follows:
(a) Clean the skin surface with the Textile-Lint free Cotton - (Material No.14SBA1) soaked in Non Aqueous Cleaner-General - - (Material No.08BAA9) to remove all the signs of dirt.
(b) Do this cleaning operation until the cloth you use is clean.
(3) Do the surface reactivation around the hoisting-point skin area as follows:
(a) If necessary, remove the remaining varnish footprint of the used hoisting-point cover patches with PAPER - ABRASIVE (GRADE 320).
(b) Before you install the hoisting-point cover patches, make the surface matt with Abrasive-- Scotch Brite Pads - (Material No.14FAB1) .
(c) Stop the reactivation procedure when the skin surface is sufficiently matt. Be careful not to remove or cause damage to the first protection layer.
(4) Install the new cover patches with the SQUEEGEE on the hoisting points to prevent the air entrapment and the wrinkles:
(a) For the aluminum vertical-stabilizer leading-edge, install the aluminum cover patches.
(b) For all the other locations, install the PVC cover patches, Adhesive Deco. Film-Marking - External Structure (Material No.05VGM3) , Adhesive Tape-Hoisting points PVC Disks - (Material No.05TNB1) or Adhesive Film Tape-- Aluminium Foil - (Material No.05RAB9) .
Subtask 11-00-00-420-054-B ** ON A/C NOT FOR ALL (1) For the location of the hoisting-point cover patches, refer to:
(a) AIPC 11-21-52- for the doors
(b) AIPC 11-21-53- for the fuselage
(c) AIPC 11-23-27- for the wings
(d) AIPC 11-25-27- for the stabilizer, and
(e) AIPC 11-25-55- for the rudder.
(2) Clean the skin surface around the hoisting points as follows:
(a) Clean the skin surface with the Textile-Lint free Cotton - (Material No.14SBA1) soaked in Non Aqueous Cleaner-General - - (Material No.08BAA9) to remove all the signs of dirt.
(b) Do this cleaning operation until the cloth you use is clean.
(3) Do the surface reactivation around the hoisting-point skin area as follows:
(a) If necessary, remove the remaining varnish footprint of the used hoisting-point cover patches with PAPER - ABRASIVE (GRADE 320).
(b) Before you install the hoisting-point cover patches, make the surface matt with Abrasive-- Scotch Brite Pads - (Material No.14FAB1) .
(c) Stop the reactivation procedure when the skin surface is sufficiently matt. Be careful not to remove or cause damage to the first protection layer.
NOTE: It is possible to rub a dry surface if a vacuum cleaning device is available to remove the dust from the surface that you rubbed.
(d) Flush the surfaces that you rubbed with Non Aqueous Cleaner-General - - (Material No.08BAA9) then clean them with the Textile-Lint free Cotton - (Material No.14SBA1) before the cleaning agent dries.(4) Install the new cover patches with the SQUEEGEE on the hoisting points to prevent the air entrapment and the wrinkles:
(a) For the aluminum vertical-stabilizer leading-edge, install the aluminum cover patches.
(b) For all the other locations, install the PVC cover patches, Adhesive Deco. Film-Marking - External Structure (Material No.05VGM3) , Adhesive Tape-Hoisting points PVC Disks - (Material No.05TNB1) or Adhesive Film Tape-- Aluminium Foil - (Material No.05RAB9) .
B. Installation of the Hoisting-Point Cover Patches
(1) For the location of the hoisting-point cover patches, refer to:
(a) AIPC 11-21-89- for the doors and the fuselage
(b) AIPC 11-23-85- for the wings, and
(c) AIPC 11-25-87- for the rudder and the stabilizer.
(2) Clean the skin surface around the hoisting points as follows:
(a) Clean the skin surface with the Textile-Lint free Cotton - (Material No.14SBA1) soaked in Non Aqueous Cleaner-General - - (Material No.08BAA9) to remove all the signs of dirt.
(b) Do this cleaning operation until the cloth you use is clean.
(3) Do the surface reactivation around the hoisting-point skin area as follows:
(a) If necessary, remove the remaining varnish footprint of the used hoisting-point cover patches with PAPER - ABRASIVE (GRADE 320).
(b) Before you install the hoisting-point cover patches, make the surfaces matt with Abrasive-- Scotch Brite Pads - (Material No.14FAB1) .
(c) Stop the reactivation procedure when the skin surface is sufficiently matt. Be careful not to remove or cause damage to the first protection layer.
(4) Install the new cover patches with the SQUEEGEE on the hoisting points to prevent the air entrapment and the wrinkles:
(a) For the aluminum vertical-stabilizer leading-edge, install the aluminum cover patches.
(b) For all the other locations, install the PVC cover patches, Adhesive Deco. Film-Marking - External Structure (Material No.05VGM3) , Adhesive Tape-Hoisting points PVC Disks - (Material No.05TNB1) or Adhesive Film Tape-- Aluminium Foil - (Material No.05RAB9) .
Subtask 11-00-00-390-050-A (1) For the location of the hoisting-point cover patches, refer to:
(a) AIPC 11-21-89- for the doors and the fuselage
(b) AIPC 11-23-85- for the wings, and
(c) AIPC 11-25-87- for the rudder and the stabilizer.
(2) Clean the skin surface around the hoisting points as follows:
(a) Clean the skin surface with the Textile-Lint free Cotton - (Material No.14SBA1) soaked in Non Aqueous Cleaner-General - - (Material No.08BAA9) to remove all the signs of dirt.
(b) Do this cleaning operation until the cloth you use is clean.
(3) Do the surface reactivation around the hoisting-point skin area as follows:
(a) If necessary, remove the remaining varnish footprint of the used hoisting-point cover patches with PAPER - ABRASIVE (GRADE 320).
(b) Before you install the hoisting-point cover patches, make the surfaces matt with Abrasive-- Scotch Brite Pads - (Material No.14FAB1) .
(c) Stop the reactivation procedure when the skin surface is sufficiently matt. Be careful not to remove or cause damage to the first protection layer.
NOTE: It is possible to rub a dry surface if a vacuum cleaning device is available to remove the dust from the surface that you rubbed.
(d) Flush the surfaces that you rubbed with Non Aqueous Cleaner-General - - (Material No.08BAA9) then clean them with the Textile-Lint free Cotton - (Material No.14SBA1) before the cleaning agent dries.(4) Install the new cover patches with the SQUEEGEE on the hoisting points to prevent the air entrapment and the wrinkles:
(a) For the aluminum vertical-stabilizer leading-edge, install the aluminum cover patches.
(b) For all the other locations, install the PVC cover patches, Adhesive Deco. Film-Marking - External Structure (Material No.05VGM3) , Adhesive Tape-Hoisting points PVC Disks - (Material No.05TNB1) or Adhesive Film Tape-- Aluminium Foil - (Material No.05RAB9) .
C. Sealing
(1) For the PVC cover patches, Adhesive Deco. Film-Marking - External Structure (Material No.05VGM3) and Adhesive Tape-Hoisting points PVC Disks - (Material No.05TNB1) :
(a) Lightly rub the patch surface with Abrasive-- Scotch Brite Pads - (Material No.14FAB1) .
(b) Clean the patch surface.
(c) Apply two thin layers of Varnish Polyurethane-Low VOC - External Structure (Material No.04SBA3) with the BRUSH - BRISTLED, SOFT on the PVC cover patches and around them.
(d) Make sure that the varnish layer width is between 6 mm (0.2362 in.) and 10 mm (0.3937 in.) from the edges.
(e) Let the varnish dry.
(2) For the Adhesive Film Tape-- Aluminium Foil - (Material No.05RAB9) :
(a) Lightly rub the patch surface with Abrasive-- Scotch Brite Pads - (Material No.14FAB1) .
(b) Clean the patch surface.
(c) Apply two thin layers of Varnish Polyurethane-Low VOC - External Structure (Material No.04SBA3) with the BRUSH - BRISTLED, SOFT on the edges of the PVC cover patches.
(d) Make sure that the varnish layer width is between 6 mm (0.2362 in.) and 10 mm (0.3937 in.) (half on the patches and half outside the patches).
(e) Let the varnish dry.
(3) For the aluminum cover patches:
(a) Do not seal the aluminum cover patches.
5. Close-up(1) For the PVC cover patches, Adhesive Deco. Film-Marking - External Structure (Material No.05VGM3) and Adhesive Tape-Hoisting points PVC Disks - (Material No.05TNB1) :
(a) Lightly rub the patch surface with Abrasive-- Scotch Brite Pads - (Material No.14FAB1) .
(b) Clean the patch surface.
(c) Apply two thin layers of Varnish Polyurethane-Low VOC - External Structure (Material No.04SBA3) with the BRUSH - BRISTLED, SOFT on the PVC cover patches and around them.
(d) Make sure that the varnish layer width is between 6 mm (0.2362 in.) and 10 mm (0.3937 in.) from the edges.
(e) Let the varnish dry.
(2) For the Adhesive Film Tape-- Aluminium Foil - (Material No.05RAB9) :
(a) Lightly rub the patch surface with Abrasive-- Scotch Brite Pads - (Material No.14FAB1) .
(b) Clean the patch surface.
(c) Apply two thin layers of Varnish Polyurethane-Low VOC - External Structure (Material No.04SBA3) with the BRUSH - BRISTLED, SOFT on the edges of the PVC cover patches.
(d) Make sure that the varnish layer width is between 6 mm (0.2362 in.) and 10 mm (0.3937 in.) (half on the patches and half outside the patches).
(e) Let the varnish dry.
(3) For the aluminum cover patches:
(a) Do not seal the aluminum cover patches.
Subtask 11-00-00-942-075-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.