Repair of the Rubbing Strip of the Cover Plate of the AFT Passenger/Crew Door

TASK 52-13-18-300-002-A
Repair of the Rubbing Strip of the Cover Plate of the AFT Passenger/Crew Door

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	ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE
No specific	AR	BRUSH - BRISTLED
No specific	AR	BRUSH - BRISTLED, STIFF
No specific	AR	SCRAPER - NON METALLIC
No specific	AR	SPATULA - NON METALLIC
No specific	AR	TAPE - ADHESIVE

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.04EAC2)	Primer Polyurethane Paint_- Corrosion Inhibiting Structure
(Material No.05JBC9)	Contact Adhesive-Rubber & Plastic Bonding Neoprene base -
(Material No.06AAB1)	Polysulfide Sealant-General Purpose Fillet -
(Material No.08BAA9)	Non Aqueous Cleaner-General - -
(Material No.10ABC1)	Surface Pretreatment-Light Alloys Chemical Conversion Yellow -
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Referenced Information

REFERENCE	DESIGNATION
TASK 52-10-00-010-001-A	Opening of the Passenger/Crew Door
TASK 52-10-00-220-007-A	Check of the Preload of the Cover Plate
TASK 52-10-00-410-001-A	Closing of the Passenger/Crew Door
TASK 52-10-00-860-001-A	Special Precautions before Work on the Passenger/Crew Door
TASK 52-10-00-860-002-A	Special Precautions after Work on the Passenger/Crew Door
SRM 512111
SRM 517512
NTM 519000
SRM 521000	(for corrective action)
AFT Passenger/Crew Door - Rubbing Strips

3. Job Set-up
Subtask 52-13-18-941-053-A

A. Get Access

WARNING: DO NOT OPEN THE PASSENGER/CREW DOOR IF THE WIND SPEED IS MORE THAN 65 KNOTS.

WARNING: BEFORE YOU START WORK ON THE DOOR, MAKE SURE THAT:

THE EMERGENCY CONTROL HANDLE IS IN THE DISARMED POSITION WITH THE SAFETY PIN INSTALLED.
THE PERCUSSION LEVER OF THE DOOR-DAMPER AND EMERGENCY-OPERATION CYLINDER IS IN THE DISARMED POSITION WITH THE SAFETY PIN INSTALLED.

IF YOU DO NOT OBEY THESE INSTRUCTIONS, THE DOOR CAN OPEN WITH FORCE OR THE ESCAPE SLIDE CAN DEPLOY SUDDENLY. THIS CAN CAUSE INJURY AND/OR DAMAGE.

WARNING: STOP THE OPENING PROCEDURE IF THE RED WARNING LIGHT FLASHES. IF THE RED WARNING LIGHT FLASHES, REMAINING PRESSURE CAN CAUSE THE DOOR TO OPEN SUDDENLY AND CAN:

KILL OR CAUSE SERIOUS INJURY TO PERSONS
CAUSE DAMAGE TO THE AIRCRAFT.

(1) Put the ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE in position in the zone 832 or 842.
(2) Open the door 832 or 842 (Ref. AMM TASK 52-10-00-010-001).
(3) Obey the special precautions before you start work on the door (Ref. AMM TASK 52-10-00-860-001).

4. Procedure
Subtask 52-13-18-340-056-A

A. Temporary Repair of the Rubbing Strip of the Cover Plate

NOTE: This temporary repair has a limit of 550 flight cycles.

(1) Do a door inspection for distortion in the damaged strip area SRM 521000.
(2) Remove the damaged strip.
(3) Do a detailed visual inspection of the damaged strip mating area of the fuselage door cutout area to confirm that the skin panel is not damaged by the strip NTM 519000.

NOTE: If the primer is visible, strip has to be replaced according to Para 4.B.

(4) Do an operational check to ensure that the door movement is not affected during the door open/close.
(5) Do the step Para 4.A.(1),Para 4.A (3),Para 4.A.(4) every 50 FC.
(6) After 550 FC, install new strip according to Para 4.B.

Subtask 52-13-18-340-053-A

B. Repair of the Rubbing Strip of the Cover Plate

AFT Passenger/Crew Door - Rubbing Strips

(1) Remove the defective rubbing strip.
(2) Use a SCRAPER - NON METALLIC and a BRUSH - BRISTLED, STIFF to remove the damaged sealant.
(3) Clean the repair area with Non Aqueous Cleaner-General - - (Material No.08BAA9) or Non Aqueous Cleaner-General - - (Material No.08BAA9) . Use the minimum quantity of cleaning agent that is necessary to clean the area. Dry the area immediately with Textile-Lint free Cotton - (Material No.14SBA1) .
(4) Clean the surfaces with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
(5) If necessary, do the protection treatment and the paint coating repair on the cover plate with Surface Pretreatment-Light Alloys Chemical Conversion Yellow - (Material No.10ABC1) and Primer Polyurethane Paint_- Corrosion Inhibiting Structure (Material No.04EAC2) SRM 512111 SRM 517512.
(6) Use TAPE - ADHESIVE to show the limits of the bonding areas on the cover plate.
(7) Mix Contact Adhesive-Rubber & Plastic Bonding Neoprene base - (Material No.05JBC9) with a SPATULA - NON METALLIC.
(8) Use a BRUSH - BRISTLED to apply a thin and constant layer of Contact Adhesive-Rubber & Plastic Bonding Neoprene base - (Material No.05JBC9) to the cover plate.
(9) Use a BRUSH - BRISTLED to apply Contact Adhesive-Rubber & Plastic Bonding Neoprene base - (Material No.05JBC9) to the neoprene side of the rubbing strip.
(10) Let the adhesive cure until it is not tacky (evaporation of solvents).
(11) Put the rubbing strip on the cover plate and make sure that it is in the correct position.
(12) Apply pressure to all the surface of the rubbing strip. Make sure that there are no bubbles under the rubbing strip.
(13) Remove the paper adhesive tapes.
(14) Apply a bead of Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) along the bottom edge of the rubbing strip.
(15) For a better bonding, it is recommended to apply a constant pressure to all the surface of the rubbing strip during 24 hours.
(16) Do a check of the preload of cover plate (Ref. AMM TASK 52-10-00-220-007).

5. Close-up
Subtask 52-13-18-942-055-A

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Obey the special precautions after the work on the door (Ref. AMM TASK 52-10-00-860-002).
(3) Close the door 832 or 842 (Ref. AMM TASK 52-10-00-410-001).

[Rev.10 from 2021] 2026.04.02 06:27:30 UTC