Check Aileron Servo Controls and Hinge Bearings for Excessive Play and Condition

TASK 27-14-00-220-001-A
Check Aileron Servo Controls and Hinge Bearings for Excessive Play and Condition

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 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.

ZONE: 575
ZONE: 675
FIN: 33CE1
FIN: 33CE2
FIN: 33CE3
FIN: 33CE4

1. Reason for the Job
Refer to the MPD TASK: 271400-02
CHECK AILERON SERVO CONTROL AND HINGE BEARINGS FOR EXCESSIVE PLAY AND CONDITION
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE
No specific	AR	WARNING NOTICE(S)
97A27003000005	1	GAGE,ASSY - PUSH-PULL
OR	OR
97A27003000007	1	GAGE,ASSY-PUSH-PULL
98D27303000001	1	LOAD,APPLICATION TOOL-ELEVATOR, AILERON, RUDDER
98D27303003001	1	CHECK TOOL (ANALOG)-AILERON,ELEVATOR,RUDDER
98D27303022000	1	TOOL CHECK - DIGITAL, AILERON ELEVATOR RUDDER
98D27903500000	2	PIN-SIDE STICK LOCKING

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
575	AFT OUTBD SE OF WING AND TE FIXED STRUCT
675	AFT OUTBD SE OF WING AND TE FIXED STRUCT
575KB, 575MB, 590AB, 590BB, 675KB, 675MB, 690AB, 690BB

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 24-41-00-862-002-A	De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01	De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02	De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 27-14-00-200-001-A	Check of the Aileron Servo Control Oscillations
TASK 27-14-41-200-001-A	Inspection/Check of the Aileron
TASK 27-14-51-000-001-A	Removal of the Aileron Servo Control
TASK 27-14-51-200-001-A	Check of the Aileron Servo Control
TASK 27-14-51-400-001-A	Installation of the Aileron Servo Control
TASK 29-10-00-863-003-A	Pressurize the Blue Hydraulic System with a Hydraulic Ground Power-Cart
TASK 29-10-00-863-003-A-01	Pressurize the Blue Hydraulic System with the Blue Electric Pump
TASK 29-10-00-864-003-A	Depressurize the Blue Hydraulic System
TASK 29-23-00-863-001-A	Pressurize the Green Hydraulic System from the Yellow Hydraulic System through the PTU with the Electric Pump
TASK 29-23-00-864-001-A	Depressurize the Green and Yellow Hydraulic Systems after Operation of the PTU
TASK 57-51-31-000-001-A	Removal of the Aileron-Hinge Support Frames 1, 2, 3, 4 and 5
TASK 57-51-31-400-001-A	Installation of the Aileron-Hinge Support Frames 1, 2, 3, 4 and 5
Location of the Tools
CHECK TOOL (DIGITAL) 98D27303022000 (Auto-recording Function)

3. Job Set-up
Subtask 27-14-00-865-050-A

A. Make sure that this(these) circuit breaker(s) is(are) closed:

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
121VU	FLIGHT CONTROLS/ELAC2/NORM/SPLY	15CE2	R20

Subtask 27-14-00-860-050-A

B. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
(2) On the center pedestal, make sure that the flap and slat control lever is in the O position.
(3) On the center pedestal, make sure that the speedbrake control lever is in the RET position.
(4) On the overhead panel 23VU, make sure that the FLT CTL/ELAC 1 pushbutton switch is pushed (on this pushbutton switch, the FAULT and OFF legends are off).

Subtask 27-14-00-010-055-A

C. Get Access

Location of the Tools

(1) Put the ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE in position at zone 575 for the left aileron.
(2) Open the access doors 575KB, 575MB, 590AB, 590BB.
(3) Put the ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE in position at zone 675 for the right aileron.
(4) Open the access doors 675KB, 675MB, 690AB, 690BB.

Subtask 27-14-00-480-050-A

D. Installation of the tools.
(1) Lock the 2 side stick controllers with the 98D27903500000 PIN-SIDE STICK LOCKING.
(2) Put the WARNING NOTICE(S) on the CAPT and F/O side sticks to tell persons not to touch the side sticks.
(3) Install the 98D27303000001 LOAD,APPLICATION TOOL-ELEVATOR, AILERON, RUDDER as follow:

at the trailing edge of the aileron
between the two servo controls.

(4) Install the 98D27303003001 CHECK TOOL (ANALOG)-AILERON,ELEVATOR,RUDDER or 98D27303022000 TOOL CHECK - DIGITAL, AILERON ELEVATOR RUDDER on the trailing edge of the aileron.

Location of the Tools

Adjust the spindle of the dial indicator to its mid travel.

NOTE: With the 98D27303022000 TOOL CHECK - DIGITAL, AILERON ELEVATOR RUDDER, you can use the auto-record function. For more information about the auto-record function, refer to the manufacturer's instruction manual.

CHECK TOOL (DIGITAL) 98D27303022000 (Auto-recording Function)

Subtask 27-14-00-863-062-A

E. Pressurize the Green and Blue hydraulic systems (Ref. AMM TASK 29-23-00-863-001) (Ref. AMM TASK 29-10-00-863-003).

4. Procedure
Subtask 27-14-00-210-052-A

A. Check for General Condition
(1) Do a visual check of the servo control bearings.
(2) Do a visual check of the aileron hinge bearings.
(3) Make sure that the liners are not damaged.

NOTE: The liner is a coat of teflon between the bearing case and the ball. It lets the ball turn with a minimum of friction (self lubricating).

If you can see the liner, replace the related servo control (Ref. AMM TASK 27-14-51-000-001) and (Ref. AMM TASK 27-14-51-400-001).

Subtask 27-14-00-220-050-A

B. Check of the Aileron Servo Controls and Hinge Bearings for too much Play and Condition
(1) On the panel 24VU, release the FLT CTL/ELAC 2 pushbutton switch (the OFF legend comes on).

NOTE: The check is only given for one surface. Do the same operations for the other surface.

(2) On the 98D27303000001 LOAD,APPLICATION TOOL-ELEVATOR, AILERON, RUDDER, connect a 97A27003000007 GAGE,ASSY-PUSH-PULL97A27003000005 GAGE,ASSY - PUSH-PULL (or equivalent).
(3) Apply 30 daN (67.4427 lbf) in the up direction on the trailing edge.

NOTE: If you see oscillations when the servo control is in active mode, do a check of these oscillations (Ref. AMM TASK 27-14-00-200-001)

(4) Continue to apply this force and set the dial indicator to zero.
(5) Release the force.
(6) At the same position, apply 30 daN (67.4427 lbf) in the down direction on the trailing edge.
(7) Continue to apply this force and read the value on the dial indicator.
(8) Release the force on the trailing edge.
(9) For each measurement, if the distance is more than 10 mm (0.3937 in.) between the two positions, do one of the steps that follow until the result of the measured value is correct.

NOTE: This 10 mm (0.3937 in.) value includes 4 mm (0.1575 in.) of surface bending as the result of 30 daN (67.4427 lbf) applied force.

(a) Replace the related aileron servo control (Ref. AMM TASK 27-14-51-000-001) and (Ref. AMM TASK 27-14-51-400-001).

Do again a measurement.

(b) Or do a check and repair the defective parts of the aileron servo control fittings (Ref. AMM TASK 27-14-51-200-001).

Do again a measurement.

Do again a measurement.

(d) Or replace the related aileron-hinge support frames (Ref. AMM TASK 57-51-31-000-001) and (Ref. AMM TASK 57-51-31-400-001).

Do again a measurement.

(10) Change the aileron control from ELAC 1 to ELAC 2:
(a) On the panel 24VU, push the FLT CLT/ELAC 2 pushbutton switch (the OFF legend goes off).
(b) On the panel 23VU, release the FLT CTL/ELAC 1 pushbutton switch (the OFF legend comes on).
(11) At the same position, apply 30 daN (67.4427 lbf) in the up direction on the trailing edge.
(12) Continue to apply this force and set the dial indicator to zero.
(13) Release the force.
(14) At the same position, apply 30 daN (67.4427 lbf) in the down direction on the trailing edge.
(15) Continue to apply this force and read the value on the dial indicator.
(16) Release the force on the trailing edge.
(17) For each measurement, if the distance is more than 10 mm (0.3937 in.) between the two positions, do one of the steps that follow until the result of the measured value is correct.

NOTE: This 10 mm (0.3937 in.) value includes 4 mm (0.1575 in.) of surface bending as the result of 30 daN (67.4427 lbf) applied force.

(a) Replace the related aileron servo control (Ref. AMM TASK 27-14-51-000-001) and (Ref. AMM TASK 27-14-51-400-001).

Do again a measurement.

(b) Or do a check and repair the defective parts of the aileron servo control fittings (Ref. AMM TASK 27-14-51-200-001).

Do again a measurement.

Do again a measurement.

(d) Or replace the related aileron-hinge support frames (Ref. AMM TASK 57-51-31-000-001) and (Ref. AMM TASK 57-51-31-400-001).

Do again a measurement.

5. Close-up
Subtask 27-14-00-080-050-A

A. Removal of the Tools.

Location of the Tools

(1) Remove the 98D27303003001 CHECK TOOL (ANALOG)-AILERON,ELEVATOR,RUDDER or 98D27303022000 TOOL CHECK - DIGITAL, AILERON ELEVATOR RUDDER, the 97A27003000007 GAGE,ASSY-PUSH-PULL97A27003000005 GAGE,ASSY - PUSH-PULL and the 98D27303000001 LOAD,APPLICATION TOOL-ELEVATOR, AILERON, RUDDER.
(2) Remove the 98D27903500000 PIN-SIDE STICK LOCKING from the two side stick controllers.
(3) Make sure that the work area is clean and clear of tools and other items.

Subtask 27-14-00-410-055-A

B. Close Access
(1) Close the access doors 575KB, 575MB, 590AB and 590BB for the left aileron.
(2) Close the access doors 675KB, 675MB, 690AB and 690BB for the right aileron.
(3) Remove the access platform(s).

Subtask 27-14-00-860-051-A

C. Put the aircraft back to its initial configuration.
(1) Depressurize the Green hydraulic system (Ref. AMM TASK 29-23-00-864-001).
(2) Depressurize the Blue hydraulic system (Ref. AMM TASK 29-10-00-864-003).
(3) On the panel 23VU, push the FLT CTL/ELAC 1 pushbutton switch (the OFF legend goes off).
(4) Remove the WARNING NOTICE(S).
(5) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).

[Rev.10 from 2021] 2026.03.31 23:47:24 UTC