Installation of the Access Panels 571AB(671AB), 573AB(673AB), 573BB(673BB), 573CB(673CB), 573EB(673EB)

TASK 57-51-37-400-002-A
Installation of the Access Panels 571AB(671AB), 573AB(673AB), 573BB(673BB), 573CB(673CB), 573EB(673EB)

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

WARNING: MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING GEAR. THIS WILL PREVENT UNWANTED MOVEMENT OF THE LANDING GEAR, AND THUS POSSIBLE INJURY TO PERSONS AND DAMAGE TO THE AIRCRAFT AND/OR EQUIPMENT.

WARNING: MAKE SURE THAT THE FLIGHT CONTROL SAFETY-LOCKS AND THE WARNING NOTICES ARE IN POSITION.

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)
No specific	AR	SAFETY BARRIER(S)
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 0.8 and 0.7 m.daN (70.80 and 61.95 lbf.in )
98D27803500001	1	LOCKING TOOL ZERO POS

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.06AAB1)	Polysulfide Sealant-General Purpose Fillet -
(Material No.06AAC1)	Polysulfide Sealant-General Purpose Interfay -
(Material No.06ACC1)	Polysulfide Sealant-Low Density Multi Purpose Interfay -
(Material No.06LCG9)	Non Hardening Jointing Putty-Medium Temp. Area - -
(Material No.08BAA9)	Non Aqueous Cleaner-General - -
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
10	STRIP-PROTECTIVE	AIPC 57-51-05-32-040

D. 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 4 to Rib 8 ** ON A/C NOT FOR ALL
Lower Trailing Edge Access Panels - Rib 4 to Rib 8 ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 57-51-37-941-053-A

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

Subtask 57-51-37-860-050-A

B. Aircraft Maintenance Configuration
(1) Make sure that the ACCESS PLATFORM 4M (13 FT) is in position below the applicable zone 573(673).

4. Procedure
Subtask 57-51-37-420-050-A

A. Preparation for Installation
(1) 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) .
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Make sure that the parts retained from the removed component are clean and in the correct condition.
(4) If the access panel seal is damaged, replace it (Ref. AMM TASK 57-51-37-960-001).

Subtask 57-51-37-420-051-A ** ON A/C NOT FOR ALL

B. Installation of the Access Panels

Lower Trailing Edge Access Panels - Rib 4 to Rib 8 ** ON A/C NOT FOR ALL

(1) Install the access panel 573AB(673AB) (6) as follows:
(a) Put the access panel (6) in position and attach it with two of the outer camloc fasteners (5).
(b) Set the access panel (6) so that dimension X is between 0.1 mm (0.0039 in.) and 4.3 mm (0.1693 in.) along the full length of the panel. Try and set the clearance as near as possible to 2.0 mm (0.0787 in.).
(c) Attach the access panel (6) to the wing with the remaining camloc fasteners (5).
(d) Fill the clearance between the access panel (6) and the trailing edge of the wing skin with Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) .
(2) Install the access panel 573BB(673BB) (4) as follows:
(a) Put the access panel (4) in position and attach it with two of the outer camloc fasteners (3).
(b) Set the access panel (4) so that dimension X is between 0.1 mm (0.0039 in.) and 4.3 mm (0.1693 in.) along the full length of the panel. Try and set the clearance as near as possible to 2.0 mm (0.0787 in.).
(c) Attach the access panel (4) to the wing with the remaining camloc fasteners (3).
(d) Fill the clearance between the access panel (4) and the trailing edge of the wing skin with Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) .
(3) Install the access panel 573CB(673CB) (2) as follows:
(a) Put the access panel (2) in position and attach it with two of the outer camloc fasteners (1).
(b) Set the access panel (2) so that:

dimension X is between 0.1 mm (0.0039 in.) and 4.3 mm (0.1693 in.) along the full length of the panel. Try and set the clearance as near as possible to 2.0 mm (0.0787 in.).
dimension Y is between 3.0 mm (0.1181 in.) and 6.0 mm (0.2362 in.) along the full width of the panel outboard end. Try and set the clearance as near as possible to 4.0 mm (0.1575 in.).

(c) Attach the access panel (2) to the wing with the remaining camloc fasteners (1).
(d) Fill the clearance between the access panel (2) and the trailing edge of the wing skin with Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) .
(4) Install the cover plate 573EB(673EB) (11) as follows:
(a) Apply Polysulfide Sealant-General Purpose Interfay - (Material No.06AAC1) or Polysulfide Sealant-Low Density Multi Purpose Interfay - (Material No.06ACC1) to the mating surfaces of the cover plate (11) and the rear false spar.
(b) Put the cover plate (11) in position and install the bolts (12).
(c) Put the pipes in position as recorded in the removal procedure.
(d) Put the plate (7) and the plate clamp (8) in position and install the bolts (9).
(e) Put the pipes in position as recorded in the removal procedure.
(f) Install the new AIPC 57-51-05-32-040 STRIP-PROTECTIVE (10).
(5) Install the access panel 571AB(671AB)(15) as follows:
(a) Apply Non Hardening Jointing Putty-Medium Temp. Area - - (Material No.06LCG9) to the mating surfaces of the access panel (15) and the rear false spar.
(b) Put the access panel (15) in position with the nut plate (14) and install the bolts (16) with the nuts (13).
(c) Torque the bolts (16) to between 0.8 and 0.7 m.daN (70.80 and 61.95 lbf.in )

Subtask 57-51-37-420-051-B ** ON A/C NOT FOR ALL

B. Installation of the Access Panels

Lower Trailing Edge Access Panels - Rib 4 to Rib 8 ** ON A/C NOT FOR ALL

dimension X is between 0.1 mm (0.0039 in.) and 4.3 mm (0.1693 in.) along the full length of the panel. Try and set the clearance as near as possible to 2.0 mm (0.0787 in.).
dimension Y is between 3.0 mm (0.1181 in.) and 6.0 mm (0.2362 in.) along the full width of the panel outboard end. Try and set the clearance as near as possible to 4.0 mm (0.1575 in.).

(c) Attach the access panel (2) to the wing with the remaining camloc fasteners (1).
(d) Fill the clearance between the access panel (2) and the trailing edge of the wing skin with Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) .
(4) Install the cover plate 573EB(673EB) (8) as follows:
(a) Apply Polysulfide Sealant-General Purpose Interfay - (Material No.06AAC1) or Polysulfide Sealant-Low Density Multi Purpose Interfay - (Material No.06ACC1) to the mating surfaces of the cover plate (8) and the rear false spar.
(b) Put the cover plate (8) in position.
(c) Put the pipes in position as recorded in the removal procedure.
(d) Install the cover plate (8) with the bolts (7).
(5) Install the access panel 571AB(671AB) (11) as follows:
(a) Apply Non Hardening Jointing Putty-Medium Temp. Area - - (Material No.06LCG9) to the mating surfaces of the access panel (11) and the rear false spar.
(b) Put the access panel (11) in position with the nut plate (10) and install the bolts (12) with the nuts (9).
(c) Torque the bolts (12) to between 0.8 and 0.7 m.daN (70.80 and 61.95 lbf.in )

5. Close-up
Subtask 57-51-37-942-055-A

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

[Rev.10 from 2021] 2026.04.01 03:54:25 UTC