Refurbishment of the Door/Door Frame Lining, the Lining of the Emergency Exit Hatches and the Slide/Raft Covers

TASK 25-20-00-370-005-A
Refurbishment of the Door/Door Frame Lining, the Lining of the Emergency Exit Hatches and the Slide/Raft Covers

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	CLOTH-EMERY (GRADE 320 - 400)
No specific	AR	GAGE-THICKNESS, PAINT BORER 518
No specific	AR	GUN - AIR SPRAY, STANDARD PAINT
No specific	AR	PAINTBRUSH

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.04BAM6)	Pore Filler Polyurethane-- - Furnishing
(Material No.04JMD9)	Top Coat Polyurethane-- Decorative Furnishing
(Material No.08BAA9)	Non Aqueous Cleaner-General - -
(Material No.08BBD1)	Non Aqueous Cleaner-- Isopropyl Alcohol -
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Referenced Information

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 25-23-45-000-002-A	Removal of the Door Frame Linings from the Right Forward Passenger/Crew Door
TASK 25-23-45-000-003-A	Removal of the Door Frame Linings from the Left Aft Passenger/Crew Door
TASK 25-23-45-000-004-A	Removal of the Door Frame Linings from the Right Aft Passenger/Crew Door
TASK 25-23-45-000-005-A	Removal of the Door Frame Linings from the Left Forward Passenger/Crew Door
TASK 25-23-45-400-005-A	Installation of the Door Frame Linings on the Right Aft Passenger/Crew Door
TASK 25-23-45-400-006-A	Installation of the Door Frame Linings on the Left Forward Passenger/Crew Door
TASK 25-23-45-400-007-A	Installation of the Door Frame Linings on the Right Forward Passenger/Crew Door
TASK 25-23-45-400-008-A	Installation of the Door Frame Linings on the Left Aft Passenger/Crew Door
TASK 25-23-46-000-001-A	Removal of the Door Linings from the Forward Passenger/Crew Doors
TASK 25-23-46-000-002-A	Removal of the Door Linings from the Aft Passenger/Crew Doors
TASK 25-23-46-400-001-A	Installation of the Door Linings on the Forward Passenger/Crew Doors
TASK 25-23-46-400-002-A	Installation of the Door Linings on the Aft Passenger/Crew Doors
TASK 25-23-47-000-001-A	Removal of the Lining from the Emergency Exit Hatches
TASK 25-23-47-400-001-A	Installation of the Lining on the Emergency Exit Hatches
TASK 25-62-00-000-801-A	Removal of the Decorative Cover of the Escape Slide/Raft at the Passenger Doors
TASK 25-62-00-400-801-A	Installation of the Decorative Cover of the Escape Slide/Raft at the Passenger Doors

3. Job Set-up
Subtask 25-20-00-861-056-A

A. Energize the ground service network
(Ref. AMM TASK 24-42-00-861-001).

4. Procedure

CAUTION: MAKE A RECORD OF THE REFURBISHMENT OF EACH COMPONENT TO MAKE SURE THAT THIS DATA IS AVAILABLE FOR SUBSEQUENT REFURBISHMENTS. IF THIS DATA IS MISSING, IT IS POSSIBLE THAT THE SUBSEQUENT REFURBISHMENT WILL NOT AGREE WITH THE FLAMMABILITY REQUIREMENTS.

Subtask 25-20-00-370-063-B

A. Painting of the Door/Door Frame Linings
(1) Remove the door/door frame linings as necessary:

The door frame linings at the left forward passenger/crew door (Ref. AMM TASK 25-23-45-000-005)
The door frame linings at the right forward passenger/crew door (Ref. AMM TASK 25-23-45-000-002)
The door frame linings at the left aft passenger/crew door (Ref. AMM TASK 25-23-45-000-003)
The door frame linings at the right aft passenger/crew door (Ref. AMM TASK 25-23-45-000-004)
The door linings at the forward passenger/crew doors (Ref. AMM TASK 25-23-46-000-001)
The door linings at the aft passenger/crew doors (Ref. AMM TASK 25-23-46-000-002).

(2) Do a visual inspection of the door/door frame linings. Obey the MAINTENANCE HISTORY DATA, if available.

CAUTION: MEASURE THE THICKNESS OF THE PAINT ON THE SURFACES OF THE COMPONENT BEFORE YOU PAINT THEM AGAIN. PAINT THAT IS TOO THICK INCREASES THE WEIGHT AND THE FLAMMABILITY PROPERTIES OF THE AIRCRAFT.

CAUTION: DO NOT CAUSE DAMAGE TO THE SURFACE OF THE COMPOSITE MATERIAL WHEN YOU REMOVE THE PAINT COATING WITH ABRASIVE PAPER.

(3) If a paint layer is applied, measure the paint layer thickness with the GAGE-THICKNESS, PAINT BORER 518 and do a check if the maximum paint layer thickness is 90 micrometers.
(4) If the paint layer thickness is more than 90 micrometers, carefully remove the unwanted paint with the CLOTH-EMERY (GRADE 320 - 400). Make sure that the maximum paint layer thickness is 90 micrometers.
(5) Carefully sand the surfaces with the CLOTH-EMERY (GRADE 320 - 400).
(6) Clean the surfaces with Non Aqueous Cleaner-General - - (Material No.08BAA9) and Textile-Lint free Cotton - (Material No.14SBA1) .
(7) Apply a layer of minimum 15 micrometers of Top Coat Polyurethane-- Decorative Furnishing (Material No.04JMD9) with a maximum of 25 micrometers to the surface with the GUN - AIR SPRAY, STANDARD PAINT or PAINTBRUSH.

NOTE: The paint layer thickness must be between 50 and 90 micrometers.

NOTE: For A318/A319/A320/A321, only these top coats are permitted: ALEXIT FST 404-12, ALEXIT FST 346-55, FRS40 and FR2/55.

(8) Let the paint dry at a temperature of 23 +2 deg.C or -2 deg.C (73.40 +3.60 deg.F or -3.60 deg.F) and a relative humidity of 45-55% for:

5-30 minutes if it must be dry against dust
5-8 hours if it must be dry for transport
12 hours if it must be dry for installation.

(9) Install the door/door frame linings:

The door frame linings at the left forward passenger/crew door (Ref. AMM TASK 25-23-45-400-006)
The door frame linings at the right forward passenger/crew door (Ref. AMM TASK 25-23-45-400-007)
The door frame linings at the left aft passenger/crew door (Ref. AMM TASK 25-23-45-400-008)
The door frame linings at the right aft passenger/crew door (Ref. AMM TASK 25-23-45-400-005)
The door linings at the forward passenger/crew doors (Ref. AMM TASK 25-23-46-400-001)
The door linings at the aft passenger/crew doors (Ref. AMM TASK 25-23-46-400-002).

Subtask 25-20-00-370-071-A ** ON A/C NOT FOR ALL

B. Painting of the Linings of the Emergency Exit Hatches
(1) Remove the linings from the emergency exit hatches (Ref. AMM TASK 25-23-47-000-001).
(2) Do a visual inspection of the emergency-exit hatch linings. Obey the MAINTENANCE HISTORY DATA, if available.

CAUTION: DO NOT CAUSE DAMAGE TO THE SURFACE OF THE COMPOSITE MATERIAL WHEN YOU REMOVE THE PAINT COATING WITH ABRASIVE PAPER.

(3) Carefully remove all paint with the CLOTH-EMERY (GRADE 320 - 400). Do not remove the filler.
(4) If filler is removed and you can see the bare panel surface:
(a) Apply Pore Filler Polyurethane-- - Furnishing (Material No.04BAM6) locally to the applicable areas with a maximum thickness of 50 micrometer.
(b) For this equipment on A318/A319/A320, only these fillers are permitted: ALEXIT FST 414-12, ALEXIT FST 343-55.
(c) Let the filler cure.
(5) Carefully sand the surfaces with the CLOTH-EMERY (GRADE 320 - 400).
(6) Clean the surfaces with Non Aqueous Cleaner-General - - (Material No.08BAA9) and a Textile-Lint free Cotton - (Material No.14SBA1) .
(7) Apply a layer of minimum 15 micrometers of Top Coat Polyurethane-- Decorative Furnishing (Material No.04JMD9) with a maximum of 25 micrometers to the surface with the GUN - AIR SPRAY, STANDARD PAINT or PAINTBRUSH.

NOTE: The paint layer thickness must be between 50 and 90 micrometers.

NOTE: For this equipment on A318/A319/A320, only these top coats are permitted: ALEXIT FST 404-12 and ALEXIT FST 346-55.

(8) Let the paint dry at a temperature of 23 +2 deg.C or -2 deg.C (73.40 +3.60 deg.F or -3.60 deg.F) and a relative humidity of 45-55% for:

5-30 minutes if it must be dry against dust
5-8 hours if it must be dry for transport
12 hours if it must be dry for installation.

(9) Install the linings on the emergency exit hatches (Ref. AMM TASK 25-23-47-400-001).

Subtask 25-20-00-370-069-B

C. Painting of the Slide/Raft Cover
(1) Remove the slide/raft cover (Ref. AMM TASK 25-62-00-000-801).
(2) Do a visual inspection of the slide/raft cover. Obey the MAINTENANCE HISTORY DATA, if available.

CAUTION: MEASURE THE THICKNESS OF THE PAINT ON THE SURFACES OF THE COMPONENT BEFORE YOU PAINT THEM AGAIN. PAINT THAT IS TOO THICK INCREASES THE WEIGHT AND THE FLAMMABILITY PROPERTIES OF THE AIRCRAFT.

(3) If paint layer is applicable, measure the paint layer thickness with the GAGE-THICKNESS, PAINT BORER 518 and do a check if the maximum paint layer thickness is 65 micrometers.

CAUTION: DO NOT CAUSE DAMAGE TO THE SURFACE OF THE COMPOSITE MATERIAL WHEN YOU REMOVE THE PAINT COATING WITH ABRASIVE PAPER.

(4) If the paint layer thickness is more than 65 micrometers, carefully remove the unwanted paint with the CLOTH-EMERY (GRADE 320 - 400) until the layer thickness is not more than 65 micrometers.
(5) Carefully sand the surfaces with the CLOTH-EMERY (GRADE 320 - 400).
(6) Clean the surfaces with Non Aqueous Cleaner-- Isopropyl Alcohol - (Material No.08BBD1) and Textile-Lint free Cotton - (Material No.14SBA1) .
(7) Apply a layer of minimum 15 micrometers of Top Coat Polyurethane-- Decorative Furnishing (Material No.04JMD9) with a maximum of 25 micrometers to the surface with the GUN - AIR SPRAY, STANDARD PAINT or PAINTBRUSH.

NOTE: The thickness of paint layer must be between 50 and 90 micrometers.

NOTE: For A318/A319/A320/A321, only these top coats are permitted: ALEXIT FST 404-12 and ALEXIT FST 346-55.

(8) Let the paint dry at a temperature of 23 +2 deg.C or -2 deg.C (73.40 +3.60 deg.F or -3.60 deg.F) and a relative humidity of 45-55% for:

5-30 minutes if it must be dry against dust
5-8 hours if it must be dry for transport
12 hours if it must be dry for installation.

(9) Install the slide/raft cover (Ref. AMM TASK 25-62-00-400-801).

5. Close-up
Subtask 25-20-00-862-056-A

A. De-energize the ground service network
(Ref. AMM TASK 24-42-00-862-001).

[Rev.10 from 2021] 2026.03.31 23:29:49 UTC