Installation of the Access Panels 575KB(675KB), 575LB(675LB), 575MB(675MB)

TASK 57-51-37-400-005-A
Installation of the Access Panels 575KB(675KB), 575LB(675LB), 575MB(675MB)

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

WARNING: PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:

THE FLIGHT CONTROLS
THE FLIGHT CONTROL SURFACES
THE LANDING GEAR AND THE RELATED DOORS
COMPONENTS THAT MOVE.

MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.

CAUTION: BE CAREFUL WHEN YOU DO MAINTENANCE TASKS ON THE WING TRAILING EDGE:

DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE RACEWAYS.
DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE INSTALLATIONS.
MAKE SURE THAT THE ELECTRICAL CABLES ARE INSTALLED CORRECTLY. INCORRECT INSTALLATION CAN CAUSE DAMAGE.

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 4M (13 FT)-ADJUSTABLE
No specific	AR	SAFETY BARRIER(S)
No specific	1	SCRAPER - NON METALLIC
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 0.45 and 0.4 m.daN (39.82 and 35.40 lbf.in )
98D27803500001	1	LOCKING TOOL ZERO POS

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.05EML7)	Epoxy Adhesive-- - Legacy 3
(Material No.05EML8)	Epoxy Adhesive-- - Legacy 2
(Material No.06AAB1)	Polysulfide Sealant-General Purpose Fillet -
(Material No.08BAA9)	Non Aqueous Cleaner-General - -
(Material No.13FBC6)	Paste Adhesive-Epoxy Core Restoration -
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Referenced Information

REFERENCE	DESIGNATION
TASK 57-51-37-960-001-A	Replacement of the Lower Trailing Edge Access Panel Seals
Lower Trailing Edge Access Panels - Rib 22 to Rib 27

3. Job Set-up
Subtask 57-51-37-941-059-A

A. Safety Precautions
(1) Make sure that the SAFETY BARRIER(S) are in position.
(2) Make sure that the 98D27803500001 LOCKING TOOL ZERO POS is installed on the flap/slat control lever.
(3) Make sure that the WARNING NOTICE(S) are in position to tell persons not to operate the flaps or slats.

Subtask 57-51-37-860-053-A

B. Aircraft Maintenance Configuration
(1) Make sure that the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE is in position below the applicable zone 575(675).

4. Procedure
Subtask 57-51-37-420-056-A

A. Preparation for Installation
(1) Use a SCRAPER - NON METALLIC to remove the sealant from the mating surfaces of the access panel.
(2) Clean the component interfaces and/or the adjacent area with a Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
(3) Do an inspection of the component interfaces and the adjacent area.
(4) Make sure that the parts retained from the removed component are clean and in the correct condition.
(5) If the access panel seal is damaged, replace it (Ref. AMM TASK 57-51-37-960-001).

Subtask 57-51-37-420-057-B

B. Installation of Access Panels 575KB(675KB), 575LB(675LB), 575MB(675MB)
(1) Install all panel inserts that have fallen out in the applicable holes with:

Epoxy Adhesive-- - Legacy 3 (Material No.05EML7) or Epoxy Adhesive-- - Legacy 2 (Material No.05EML8) or Paste Adhesive-Epoxy Core Restoration - (Material No.13FBC6) .

(2) For access panel 575KB (675KB):
(a) Apply the Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) to the mating surface of the shim(s) (1) with the wing skin.
(b) Put the shim(s) (1) and the access panel (2) in position.
1 Use the shim(s) (1) as recorded in the removal procedure.
(c) Install the bolts (3) but do not tighten them. Make sure that you can move the access panel (2) sufficient to adjust its position.
(d) Set the access panel (2) so that:

Dimension V is 2.0 mm (0.0787 in.) + 2.3 mm (0.0906 in.)/- 1.5 mm (0.0591 in.) along the full length of the access panel (2).
Dimension X is 4.0 mm (0.1575 in.) + 2.0 mm (0.0787 in.)/- 1.0 mm (0.0394 in.) along the full width of the access panel (2).
Dimension Y is 2.0 mm (0.0787 in.) +/- 0.5 mm (0.0197 in.) along the full width of the access panel (2).
Dimension Z is 0.0 mm (0.0000 in.) + 0.5 mm (0.0197 in.) along the full length of the access panel seal.

NOTE: If dimension Z is not in the limits, you must adjust the position of the access panel seal (Ref. AMM TASK 57-51-37-960-001).

(e) TORQUE the bolts (3) to between 0.45 and 0.4 m.daN (39.82 and 35.40 lbf.in )

.
(f) Fill the clearances around the edges of the access panel (2) with the Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) .
(3) For access panel 575LB (675LB):
(a) Apply the Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) to the mating surface of the shims (4), (5) and (6) with the wing skin.
(b) Put the shims (4), (5) and (6) and the access panel (8) in position.
1 Use the shims (4), (5) and (6) as recorded in the removal procedure.
(c) Install the bolts (7) but do not tighten them. Make sure that you can move the access panel (8) sufficient to adjust its position.
(d) Set the access panel (8) so that:

Dimension V is 2.0 mm (0.0787 in.) + 2.3 mm (0.0906 in.)/- 1.5 mm (0.0591 in.) along the full length of the access panel (8).
Dimension X is 4.0 mm (0.1575 in.) + 2.0 mm (0.0787 in.)/- 1.0 mm (0.0394 in.) along the full width of the access panel (8).
Dimension Z is 0.0 mm (0.0000 in.) + 0.5 mm (0.0197 in.) along the full length of the access panel seal.

NOTE: If dimension Z is not in the limits, you must adjust the position of the access panel seal (Ref. AMM TASK 57-51-37-960-001).

(e) TORQUE the bolts (7) to between 0.45 and 0.4 m.daN (39.82 and 35.40 lbf.in )

.
(f) Fill the clearances around the edges of the access panel (8) with the Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) .
(4) For access panel 575MB (675MB):
(a) Apply the Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) to the mating surface of the shim(s) (9) with the wing skin.
(b) Put the shim(s) (9) and the access panel (11) in position.
1 Use the shim(s) (9) as recorded in the removal procedure.
(c) Install the bolts (10) but do not tighten them. Make sure that you can move the access panel (11) sufficient to adjust its position.
(d) Set the access panel (11) so that:

Dimension V is 2.0 mm (0.0787 in.) + 2.3 mm (0.0906 in.)/- 1.5 mm (0.0591 in.) along the full length of the access panel (11).
Dimension W is 1.2 mm (0.0472 in.) +/- 0.5 mm (0.0197 in.) along the full width of the access panel (11).
Dimension X is 4.0 mm (0.1575 in.) + 2.0 mm (0.0787 in.)/- 1.0 mm (0.0394 in.) along the full width of the access panel (11).
Dimension Z is 0.0 mm (0.0000 in.) + 0.5 mm (0.0197 in.) along the full length of the access panel seal.

NOTE: If dimension Z is not in the limits, you must adjust the position of the access panel seal (Ref. AMM TASK 57-51-37-960-001).

(e) TORQUE the bolts (10) to between 0.45 and 0.4 m.daN (39.82 and 35.40 lbf.in )

.
(f) Fill the clearances around the edges of the access panel (11) with the Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) .

5. Close-up
Subtask 57-51-37-942-056-A

A. Removal of Equipment
(1) Remove the 98D27803500001 LOCKING TOOL ZERO POS from the flap/slat control lever.
(2) Make sure that the work area is clean and clear of tools and other items.
(3) Remove the access platform(s).
(4) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(5) Remove the WARNING NOTICE(S).
(6) Remove the safety barriers.

[Rev.10 from 2021] 2026.04.01 02:15:36 UTC