Installation of the Access Panels

TASK 57-51-37-400-011-A
Installation of the Access Panels

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	Torque wrench: range to between 0.45 and 0.40 m.daN (39.82 and 35.40 lbf.in )
98D27803500001	1	LOCKING TOOL ZERO POS

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.06AAC1)	Polysulfide Sealant-General Purpose Interfay -
(Material No.08BAA9)	Non Aqueous Cleaner-General - -
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Referenced Information

REFERENCE	DESIGNATION
Lower Trailing Edge Access Panels - Location and Detail ** ON A/C NOT FOR ALL
Lower Trailing Edge Access Panels - Location and Detail ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 57-51-37-941-071-A

A. Safety Precautions
(1) Make sure that the SAFETY BARRIER(S) are in position.

Subtask 57-51-37-860-066-A

B. Aircraft Maintenance Configuration
(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) is in position in the cockpit to tell persons not to operate the flaps or slats.

Subtask 57-51-37-865-057-A

C. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/ELAC1/NORM/SPLY	15CE1	B11
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/ELAC1/NORM/SPLY	15CE1	B06
** ON A/C ALL
105VU	FLIGHT CONTROLS/ELAC2/STBY SPLY	16CE2	A02
105VU	FLT CTL/ELAC1/STBY SPLY	16CE1	A01
121VU	FLIGHT CONTROLS/ELAC2/NORM/SPLY	15CE2	R20

Subtask 57-51-37-010-061-A

D. Get Access
(1) Make sure that the ACCESS PLATFORM 4M (13 FT) is in position below the applicable access panel.

4. Procedure
Subtask 57-51-37-210-050-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) Apply Polysulfide Sealant-General Purpose Interfay - (Material No.06AAC1) to the interface of the aircraft structure.
(4) Make sure that the parts retained from the removed component are clean and in the correct condition.

Subtask 57-51-37-420-067-A

B. Installation of the Access Panels 590AB(690AB), 590BB(690BB)
(1) For the panel 590AB(690AB):
(a) Hold the access panel (1) in position and install the bolts (2).
(b) TORQUE the bolts (2) to between 0.45 and 0.40 m.daN (39.82 and 35.40 lbf.in )

.
(c) Make sure that the access panel (1) is correctly aligned with the adjacent panels.
(2) For the panel 590BB(690BB):
(a) Hold the access panel (3) in position and install the bolts (4).
(b) TORQUE the bolts (4) to between 0.45 and 0.40 m.daN (39.82 and 35.40 lbf.in )

.
(c) Make sure that the access panel (3) is correctly aligned with the adjacent panels.

5. Close-up
Subtask 57-51-37-865-058-A

A. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/ELAC1/NORM/SPLY	15CE1	B11
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/ELAC1/NORM/SPLY	15CE1	B06
** ON A/C ALL
105VU	FLIGHT CONTROLS/ELAC2/STBY SPLY	16CE2	A02
105VU	FLT CTL/ELAC1/STBY SPLY	16CE1	A01
121VU	FLIGHT CONTROLS/ELAC2/NORM/SPLY	15CE2	R20

Subtask 57-51-37-410-055-A

B. Close Access
(1) Remove the access platform(s).

Subtask 57-51-37-860-067-A

C. Aircraft Maintenance Configuration
(1) Remove the 98D27803500001 LOCKING TOOL ZERO POS from the flap/slat control lever.

Subtask 57-51-37-942-062-A

D. Removal of Equipment
(1) Remove the safety barriers.
(2) Remove the WARNING NOTICE(S).
(3) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

[Rev.10 from 2021] 2026.04.01 03:54:39 UTC