Removal of Spoiler 4

TASK 27-64-44-000-001-A
Removal of Spoiler 4

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.

WARNING: MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS SURFACES ARE CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO 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.

ZONE: 580
ZONE: 680

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

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
No specific	AR	SAFETY BARRIER(S)
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	AR	WARNING NOTICE(S)
98D27604000000	1	COLLAR-SAFETY, SPOILER
98D27604004000	1	COLLAR SAFETY SPOILER
98D27803000000	1	LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
580	LEFT WING FLAPS AND SPOILERS
680	RIGHT WING FLAPS AND SPOILERS
197CB, 197EB, 198CB, 575EB, 575FB, 675EB, 675FB

C. Referenced Information

REFERENCE	DESIGNATION
TASK 24-41-00-861-002-A	Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01	Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02	Energize the Aircraft Electrical Circuits from Engine 1(2)
TASK 27-60-00-866-002-A	Extension-Retraction of the Spoilers for Maintenance
TASK 29-00-00-864-001-A	Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action
TASK 57-51-37-000-004-A	Removal of the Access Panels 575AB(675AB), 575BB(675BB), 575CB(675CB), 575DB(675DB), 575EB(675EB), 575FB(675FB), 575GB(675GB), 575HB(675HB)
Spoiler 4 - Location and Details ** ON A/C NOT FOR ALL
Spoiler 4 - Location and Details ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 27-64-44-860-050-A

A. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
(2) Extend the spoiler:
(a) Extend the spoiler (1) for maintenance (Ref. AMM TASK 27-60-00-866-002).
(3) On the overhead panel, on FLT CTL panel 23VU, make sure that the SEC 1 pushbutton switch is released (the OFF legend is on).
(4) On the overhead panel, on FLT CTL panel 24VU, make sure that the SEC 2 and SEC 3 pushbutton switches are released (the OFF legends are on).
(5) On the center pedestal, make sure that the SPEED BRAKE control lever is set to RET.
(6) Make sure that the hydraulic systems are depressurized and put them in the maintenance configuration
(Ref. AMM TASK 29-00-00-864-001).

Subtask 27-64-44-941-059-A

B. Safety Precautions
(1) As necessary, use the applicable SAFETY BARRIERS, specified by the operator's instructions and your local regulations.
(2) In the cockpit:
(a) Put the WARNING NOTICE(S) in position:

On the overhead panel, on the hydraulic section of panel 40VU, to tell persons not to pressurize the hydraulic systems
On the overhead panel, on FLT CTL panels 23VU and 24VU, to tell persons not to push the SEC pushbutton switches
On the center pedestal, on the SPEED BRAKE control lever, to tell persons not to operate it
On the flight controls, to tell persons not to operate them.

(b) On the center pedestal, on panel 114VU, make sure that the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION is installed on the flap and slat control lever.
(3) On the ground:
(a) Open access doors 197CB, 198CB and 197EB.
(b) Put the WARNING NOTICE(S) in position:

On the ground service panel of the Yellow hydraulic system, to tell persons not to pressurize the Yellow hydraulic system
On the ground service panel of the Green hydraulic system, to tell persons not to pressurize the Green hydraulic system
On the ground service panel of the Blue hydraulic system, to tell persons not to pressurize the Blue hydraulic system.

Subtask 27-64-44-865-050-A

C. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/SEC1/NORM/SPLY	21CE1	B08
49VU	FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1	6CV	B07
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/SEC1/NORM/SPLY	21CE1	B03
49VU	FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1	6CV	B02
** ON A/C ALL
105VU	FLT CTL/SEC1/STBY SPLY	22CE	B01
121VU	FLIGHT CONTROLS/FLP/CTL AND/MONG/SYS2	8CV	Q21
121VU	FLIGHT CONTROLS/SEC3/SPLY	21CE3	Q19
121VU	FLIGHT CONTROLS/SEC2/SPLY	21CE2	Q18

Subtask 27-64-44-010-055-A

D. Get Access
(1) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position below the access panels that follow:

For the left wing, 575EB and 575FB
For the right wing, 675EB and 675FB.

(2) Make sure that the access panels that follow are removed:

For the left wing, panels 575EB and 575FB (Ref. AMM TASK 57-51-37-000-004)
For the right wing, panels 675EB and 675FB (Ref. AMM TASK 57-51-37-000-004).

(3) Make sure that the 98D27604000000 COLLAR-SAFETY, SPOILER or the 98D27604004000 COLLAR SAFETY SPOILER is installed on the servo control.

4. Procedure
Subtask 27-64-44-020-050-E ** ON A/C NOT FOR ALL

A. Removal of Spoiler 4
(1) Remove the nuts (56), washers (54) and bolts (53), and disconnect the bonding straps (55) from the spoiler (1).
(2) Remove the nuts (47) and (36), and the locking plates (46) and (35).
(3) Remove the nut (26), locking plate (25), spacer (24) and bolt (23).
(4) Disconnect the spoiler servo control:

WARNING: USE PROTECTIVE GOGGLES WHEN YOU REMOVE OR INSTALL A COTTER PIN. EACH TIME YOU REMOVE A COTTER PIN DURING THE TASK, DISCARD IT IMMEDIATELY. A LOOSE COTTER PIN CAN CUT YOU OR MAKE YOU BLIND.

(a) Remove and discard the cotter pin (9) from the locking cap (2).
(b) Remove the locking cap (2), nut (3) and washer (10).
(5) Prepare the spoiler (1) for the removal:

CAUTION: SUPPORT THE SERVO CONTROL 7.5kg (16.5lb) AND THE SPOILER APPROXIMATELY 15kg (33lb). THIS WILL PREVENT DAMAGE TO:

THE HYDRAULIC LINES
THE ELECTRICAL CABLES
THE STRUCTURE.

(a) Install supports on the wing structure below the spoiler (1) and the servo control to:
1 Support the servo control after you disconnect it from the spoiler (1).
2 Support the spoiler (1) in the extended position after you disconnect it from the servo control.
(b) Remove the hinge pin (5) from the rod eye end of the servo control.
(c) Disconnect the servo control from the spoiler (1) and carefully lower it onto the supports.
(d) Make sure that the spoiler (1) is in position on the supports.
(e) Remove the sliding bush (4) and the flanged bush (6).

WARNING: USE PROTECTIVE GOGGLES WHEN YOU REMOVE OR INSTALL A COTTER PIN. EACH TIME YOU REMOVE A COTTER PIN DURING THE TASK, DISCARD IT IMMEDIATELY. A LOOSE COTTER PIN CAN CUT YOU OR MAKE YOU BLIND.

(6) Disconnect the spoiler:
(a) Remove and discard the cotter pins (16) and (27) from the locking caps (11) and (22).
(b) Remove and discard the cotter pins (48) and (37) from the locking caps (45) and (34).
(c) Remove the locking caps (11), (45), (34) and (22).
(d) Remove the nuts (12), (44), (33) and (21), and the washers (17), (49), (38) and (28).
(7) Remove the hinge pins (42), (30) and (18).
(8) Collect the sliding bushes (43), (31), (32) and (20).
(9) Remove the spoiler (1):
(a) Pull the spoiler (1) rearward to:
1 Disengage the spoiler (1) from the fixed fittings of the rear spar.
2 Disengage the spoiler link assembly (19) from the rear spar.
(b) Pull the spoiler (1) outboard to disengage the spoiler link assembly (13) from the shaft (15).
(c) Remove the spoiler (1).
(10) Collect the spacer (14).

Subtask 27-64-44-020-050-G ** ON A/C NOT FOR ALL

A. Removal of Spoiler 4
(1) Remove the nuts (56), washers (54) and bolts (53), and disconnect the bonding straps (55) from the spoiler (1).
(2) Remove the nut (47), locking plate (46), spacer (52), bolt (50) and washer (51).
(3) Remove the nut (36), locking plate (35), spacer (41), bolt (39) and washer (40).
(4) Remove the nut (26), locking plate (25), spacer (24), bolt (23) and washer (29).
(5) Disconnect the spoiler servo control:

WARNING: USE PROTECTIVE GOGGLES WHEN YOU REMOVE OR INSTALL A COTTER PIN. EACH TIME YOU REMOVE A COTTER PIN DURING THE TASK, DISCARD IT IMMEDIATELY. A LOOSE COTTER PIN CAN CUT YOU OR MAKE YOU BLIND.

(a) Remove and discard the cotter pin (9) from the locking cap (2).
(b) Remove the locking cap (2), nut (3) and washer (10).
(6) Prepare the spoiler (1) for the removal:

CAUTION: SUPPORT THE SERVO CONTROL 7.5kg (16.5lb) AND THE SPOILER APPROXIMATELY 15kg (33lb). THIS WILL PREVENT DAMAGE TO:

THE HYDRAULIC LINES
THE ELECTRICAL CABLES
THE STRUCTURE.

WARNING: USE PROTECTIVE GOGGLES WHEN YOU REMOVE OR INSTALL A COTTER PIN. EACH TIME YOU REMOVE A COTTER PIN DURING THE TASK, DISCARD IT IMMEDIATELY. A LOOSE COTTER PIN CAN CUT YOU OR MAKE YOU BLIND.

(7) Disconnect the spoiler:
(a) Remove and discard the cotter pins (16) and (27) from the locking caps (11) and (22).
(b) Remove and discard the cotter pins (48) and (37) from the locking caps (45) and (34).
(c) Remove the locking caps (11), (45), (34) and (22).
(d) Remove the nuts (12), (44), (33) and (21), and the washers (17), (49), (38) and (28).
(8) Remove the hinge pins (42), (30) and (18).
(9) Collect the sliding bushes (43), (31), (32) and (20).
(10) Remove the spoiler (1):
(a) Pull the spoiler (1) rearward to:
1 Disengage the spoiler (1) from the fixed fittings of the rear spar.
2 Disengage the spoiler link assembly (19) from the rear spar.
(b) Pull the spoiler (1) outboard to disengage the spoiler link assembly (13) from the shaft (15).
(c) Remove the spoiler (1).
(11) Collect the spacer (14).

[Rev.10 from 2021] 2026.04.01 07:05:44 UTC