Check of the Elevator Servo Controls and Hinge Bearings for Excessive Play and Condition

TASK 27-34-00-200-001-A
Check of the Elevator 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: 334
ZONE: 344
FIN: 34CE1
FIN: 34CE2
FIN: 34CE3
FIN: 34CE4

1. Reason for the Job
Refer to the MPD TASK: 273400-02
CHECK ELEVATOR SERVOCONTROL AND HINGE BEARINGS FOR EXCESSIVE PLAY AND CONDITION
To make sure that :

The elevator servocontrol bearings and the hinge bearings that attach the elevators to the structure are in good condition.
To measure the play at the trailing edge of the elevators.

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	1	ACCESS PLATFORM 6M (20 FT) - ADJUSTABLE
No specific	3	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
98D27403500000	1	PITCH TRIM CONTROL LOCKING
98D27903500000	2	PIN-SIDE STICK LOCKING

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
334	THS TRAILING EDGE
344	THS TRAILING EDGE
334BB, 334DB, 334FB, 334HB, 344BB, 344DB, 344FB, 344HB, 822

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 27-34-00-200-002-A	Check of the Elevator Servo Control Oscillations.
TASK 27-34-51-000-001-A	Removal of the Elevator Servo Control
TASK 27-34-51-200-001-A	In Service Wear Limits of the Elevator Servo-Control Attach-Fittings
TASK 27-34-51-400-001-A	Installation of the Elevator 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 29-24-00-863-001-A	Pressurize the Yellow Hydraulic System with the Electric Pump
TASK 29-24-00-864-001-A	Depressurize the Yellow Hydraulic System
TASK 55-13-11-000-001-A	Remove/Open of the Trimmable Horizontal Stabilizer (THS) Trailing-Edge Access-Panels
TASK 55-13-11-400-001-A	Install/Close of the Trimmable Horizontal Stabilizer (THS) Trailing-Edge Access-Panels
TASK 55-16-42-000-001-A	Removal of the Elevator Hinge-Arm End-Fittings
TASK 55-16-42-400-001-A	Installation of the Elevator Hinge-Arm End-Fittings
TASK 55-26-00-200-002-A	Check of Elevator Attachment Fittings for Wear, LH/RH
CHECK TOOL (DIGITAL) 98D27303022000 (Auto-recording Function)
Adjustment of the Elevators
Elevator Trailing Edge Play - Check List
Elevator Trailing Edge Play - Measurement

3. Job Set-up
Subtask 27-34-00-860-060-A

A. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002)
(2) On the overhead panel 20VU, make sure that:

The 3 OFF/NAV/ATT selector switches are in OFF position.

(3) On the panel 23VU, make sure that the FLT CTL/ELAC 1 pushbutton switch is pushed (the OFF and FAULT legends are off).
(4) On the panel 24VU, make sure that the FLT CTL/ELAC 2 pushbutton switch is pushed (the OFF and FAULT legends are off).

Subtask 27-34-00-010-063-A

B. Get Access
(1) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position at the access door 822.
(a) Open the access door 822.
(b) On the battery power center 105VU:

Loosen the two screws and remove the protective cover.

(2) Put the ACCESS PLATFORM 6M (20 FT) - ADJUSTABLE in position:
(a) At zone 334 for the left elevator.
(b) At zone 344 for the right elevator.
(3) Open the THS trailing edge access-panels (Ref. AMM TASK 55-13-11-000-001):
(a) 334BB 334DB 334FB 334HB for the left elevator.
(b) 344BB 344DB 344FB 344HB for the right elevator.

Subtask 27-34-00-865-052-A

C. 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 ALL
49VU	L/G/LGCIU/SYS1/NORM	1GA	C09
** 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	HYDRAULIC/LGCIU/SYS2	2GA	Q35
121VU	HYDRAULIC/LGCIU/SYS1/GRND SPLY	52GA	Q34
121VU	FLIGHT CONTROLS/ELAC2/NORM/SPLY	15CE2	R20

Subtask 27-34-00-481-050-A

D. Installation of the Safety Devices
(1) Put the 98D27903500000 PIN-SIDE STICK LOCKING on the CAPT and F/O side sticks.
(2) Put the 98D27403500000 PITCH TRIM CONTROL LOCKING on the pitch-trim control wheel.
(3) Put the WARNING NOTICE(S) in position to tell persons not to use these controls:

The CAPT and F/O side sticks
The pitch-trim control wheels.

Subtask 27-34-00-863-055-A

E. Pressurize the aircraft hydraulic systems (Ref. AMM TASK 29-23-00-863-001) (Ref. AMM TASK 29-24-00-863-001) (Ref. AMM TASK 29-10-00-863-003).

Subtask 27-34-00-480-050-A

F. Installation of the Tools
(1) Make sure that there is no warning related to the LGCIUs on the upper ECAM display unit.
(2) Install the 98D27303000001 LOAD,APPLICATION TOOL-ELEVATOR, AILERON, RUDDER at 1365 mm (53.7402 in.) from the start of the inner side trailing edge of the elevator (between the two servocontrols).
(3) Install the 98D27303003001 CHECK TOOL (ANALOG)-AILERON,ELEVATOR,RUDDER or 98D27303022000 TOOL CHECK - DIGITAL, AILERON ELEVATOR RUDDER on the trailing edge of the elevator.

NOTE: Clean and make the tail-cone upper surface moist before you attach the tool.

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)

4. Procedure
Subtask 27-34-00-210-050-A

A. Check of the Elevator Servocontrols and Hinge Bearings for General Condition
(1) Make sure that the liner is in the correct position in the housing of the ball bearings (no migration of the liner).

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 the rod-end of the elevator servocontrol has a grease nipple (regreasable roller bearing): there is no liner.

(a) If you can see the liner, replace the related servocontrol (Ref. AMM TASK 27-34-51-000-001) (Ref. AMM TASK 27-34-51-400-001) or hinge arm end-fitting (Ref. AMM TASK 55-16-42-000-001) (Ref. AMM TASK 55-16-42-400-001).

Subtask 27-34-00-220-052-A ** ON A/C NOT FOR ALL

B. Check of the Elevators for Excessive Play

NOTE: For monitoring and follow up of the play at the elevator trailing edge, we recommend that the operators record the measured values in their documentation.

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

(1) On the maintenance panel 50VU, release the HYD LEAK MEASUREMENT/B pushbutton switch (the OFF legend comes on).

NOTE: At this time, the inboard servocontrols are pressurized:

By the Green hydraulic system for the left elevator.
By the Yellow hydraulic system for the right elevator.

NOTE: If you see oscillations when the servocontrol is in active mode, do a check of these oscillations (Ref. AMM TASK 27-34-00-200-002).

(2) On the 98D27303000001 LOAD,APPLICATION TOOL-ELEVATOR, AILERON, RUDDER, connect the 97A27003000007 GAGE,ASSY-PUSH-PULL97A27003000005 GAGE,ASSY - PUSH-PULL (or equivalent).
(3) Apply a stable load of 30 daN (67.4427 lbf) in the up direction on the trailing edge.
(4) Keep this load applied and set the dial gage to zero.
(5) Release the load.
(6) At the same position, apply a stable load of 30 daN (67.4427 lbf) in the down direction on the trailing edge.
(7) Keep this load applied and record the value shown on the dial gage, then release the load.

NOTE: The value measured between A and B must be:

More than 4 mm (0.1575 in.) (surface bending with 30 daN (67.4427 lbf) load applied), and
Less than 7 mm (0.2756 in.) ( 7 mm (0.2756 in.) is the maximum permitted value, it includes the 4 mm (0.1575 in.) of the surface bending).

(a) If the value measured between A and B is less than 4 mm (0.1575 in.) (without play), do the measurement one more time.
(8) If the distance is more than 7 mm (0.2756 in.) between the two positions:
(a) For the left elevator:
1 Replace the Green elevator servocontrol (Ref. AMM TASK 27-34-51-000-001) (Ref. AMM TASK 27-34-51-400-001).
2 If the distance stays more than 7 mm (0.2756 in.) do a check of the Green elevator servocontrol fittings (Ref. AMM TASK 27-34-51-200-001).
3 If the distance stays more than 7 mm (0.2756 in.) do an inspection/check of the elevator attach hinge fittings (Ref. AMM TASK 55-26-00-200-002).
(b) For the right elevator:
1 Replace the Yellow elevator servocontrol (Ref. AMM TASK 27-34-51-000-001) (Ref. AMM TASK 27-34-51-400-001).
2 If the distance stays more than 7 mm (0.2756 in.) do a check of the Yellow elevator servocontrol fittings (Ref. AMM TASK 27-34-51-200-001).
3 If the distance stays more than 7 mm (0.2756 in.) do an inspection/check of the elevator attach hinge fittings (Ref. AMM TASK 55-26-00-200-002).
(9) On the maintenance panel 50VU :
(a) Push the HYD LEAK MEASUREMENT/B pushbutton switch (the OFF legend goes off).
(b) Release the HYD LEAK MEASUREMENT/G pushbutton switch (the OFF legend comes on).
(c) Release the HYD LEAK MEASUREMENT/Y pushbutton switch (the OFF legend comes on).

NOTE: At this time, the outboard servocontrols are pressurized:

By the Blue hydraulic system for the left and right elevators.

NOTE: If you see oscillations when the servocontrol is in active mode, do a check of these oscillations (Ref. AMM TASK 27-34-00-200-002).

(10) At the same position, apply a stable load of 30 daN (67.4427 lbf) in the up direction on the trailing edge.
(11) Keep this load applied and set the dial gage to zero.
(12) Release the load.
(13) At the same position, apply a stable load of 30 daN (67.4427 lbf) in the down direction on the trailing edge.
(14) Keep this load applied and record the value shown on the dial gage, then release the load.

NOTE: The value measured between A and B must be:

More than 4 mm (0.1575 in.) (surface bending with 30 daN (67.4427 lbf) load applied), and
Less than 7 mm (0.2756 in.) ( 7 mm (0.2756 in.) is the maximum permitted value, it includes the 4 mm (0.1575 in.) of the surface bending).

(a) If the value measured between A and B is less than 4 mm (0.1575 in.) (without play), do the measurement one more time.
(15) If the distance is more than 7 mm (0.2756 in.) between the two positions:
(a) For the left and for the right elevator:
1 Replace the Blue elevator servocontrol (Ref. AMM TASK 27-34-51-000-001) (Ref. AMM TASK 27-34-51-400-001).
2 If the distance stays more than 7 mm (0.2756 in.) do a check of the Blue elevator servocontrol fittings (Ref. AMM TASK 27-34-51-200-001).
3 If the distance stays more than 7 mm (0.2756 in.) do a check of the elevator hinge fittings (Ref. AMM TASK 55-26-00-200-002).

Subtask 27-34-00-220-052-E ** ON A/C NOT FOR ALL

B. Check of the Elevators for Excessive Play

NOTE: For monitoring and follow up of the play at the elevator trailing edge, we recommend that the operators record the measured values in their documentation.

(1) On the maintenance panel 50VU, release the HYD LEAK MEASUREMENT/B pushbutton switch (the OFF legend comes on).

NOTE: At this time, the inboard servocontrols are pressurized:

By the Green hydraulic system for the left elevator.
By the Yellow hydraulic system for the right elevator.

NOTE: If you see oscillations when the servocontrol is in active mode, do a check of these oscillations (Ref. AMM TASK 27-34-00-200-002).

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

NOTE: The value measured between A and B must be:

More than 4 mm (surface bending with 30 DaN load applied), and
Less than 7 mm (0.2756 in.) ( 7 mm (0.2756 in.) is the maximum permitted value, it includes the 4 mm (0.1575 in.) of the surface bending).

(a) If the value measured between A and B is less than 4 mm (0.1575 in.) (without play), do the measurement one more time.
(8) If the distance is more than 7 mm (0.2756 in.) between the two positions:
(a) For the left elevator:
1 Do an inspection/check of the elevator attach hinge fittings (Ref. AMM TASK 55-26-00-200-002).
2 Do again a check of the elevator for excessive play:

NOTE: The play must be decreased to 6 mm or less. If not, it stays a residual clearance that must be decreased in the steps that follow.

a If the play is more than 6 mm, continue the procedure.
3 Replace the Green elevator servocontrol (Ref. AMM TASK 27-34-51-000-001) and (Ref. AMM TASK 27-34-51-400-001).
4 Do again a check of the elevator for excessive play.

If the play is more than 6 mm, continue the procedure.

5 Do a check of the Green elevator servocontrol fitting (Ref. AMM TASK 27-34-51-200-001).
(b) For the right elevator:
1 Do an inspection/check of the elevator attach hinge fittings (Ref. AMM TASK 55-26-00-200-002).
2 Do again a check of the elevator for excessive play:
a If the play is more than 6 mm, continue the procedure.

NOTE: The play must be decreased to 6 mm or less. If not, it stays a residual clearance that must be decreased in the steps that follow.

3 Replace the Yellow elevator servocontrol (Ref. AMM TASK 27-34-51-000-001) and (Ref. AMM TASK 27-34-51-400-001).
4 Do again a check of the elevator for excessive play:
a If the play is more than 6 mm, continue the procedure.
5 Do a check of the Yellow elevator servocontrol fitting (Ref. AMM TASK 27-34-51-200-001).
(9) On the maintenance panel 50VU:
(a) Push the HYD LEAK MEASUREMENT/B pushbutton switch (the OFF legend goes off).
(b) Release the HYD LEAK MEASUREMENT/G pushbutton switch (the OFF legend comes on).
(c) Release the HYD LEAK MEASUREMENT/Y pushbutton switch (the OFF legend comes on).

NOTE: At this time, the outboard servocontrols are pressurized:

By the Blue hydraulic system for the left and right elevators.

NOTE: If you see oscillations when the servocontrol is in active mode, do a check of these oscillations (Ref. AMM TASK 27-34-00-200-002).

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

NOTE: The value measured between A and B must be:

More than 4 mm (surface bending with 30 DaN load applied), and
Less than 7 mm (0.2756 in.) ( 7 mm (0.2756 in.) is the maximum permitted value, it includes the 4 mm (0.1575 in.) of the surface bending).

(a) If the value measured between A and B is less than 4 mm (0.1575 in.) (without play), do the measurement one more time.
(15) If the distance is more than 7 mm (0.2756 in.) between the two positions:
(a) Do a check of the elevator hinge fittings (Ref. AMM TASK 55-26-00-200-002).
1 Do a check again of the elevator for excessive play:

If the play is more than 6 mm, continue the procedure.

NOTE: The play must be decreased to 6 mm or less. If not, it stays a residual clearance that must be decreased in the steps that follow.

(b) Replace the Blue elevator servocontrol (Ref. AMM TASK 27-34-51-000-001) and (Ref. AMM TASK 27-34-51-400-001).
1 Do again a check of the elevator for excessive play:

If the play is more than 6 mm, continue the procedure.

5. Close-up
Subtask 27-34-00-080-050-A

A. Removal 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 from the elevator.
(2) Make sure that the work area is clean and clear of tools and other items.

Subtask 27-34-00-860-061-A

B. Put the Aircraft back to its Initial Configuration
(1) On the maintenance panel 50VU :
(a) Push the HYD LEAK MEASUREMENT/G pushbutton switch (the OFF legend goes off).
(b) Push the HYD LEAK MEASUREMENT/Y pushbutton switch (the OFF legend goes off).
(2) Depressurize the aircraft hydraulic systems (Ref. AMM TASK 29-23-00-864-001) (Ref. AMM TASK 29-24-00-864-001) (Ref. AMM TASK 29-10-00-864-003).
(3) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).

Subtask 27-34-00-081-050-A

C. Removal of the Safety Devices
(1) Remove the 98D27903500000 PIN-SIDE STICK LOCKING from the CAPT and F/O sidestick controllers.
(2) Remove the 98D27403500000 PITCH TRIM CONTROL LOCKING from the pitch-trim control wheel.
(3) Remove the WARNING NOTICE(S).

Subtask 27-34-00-410-054-A

D. Close Access
(1) Install the protective cover on the battery power center 105VU.
(2) Tighten the two screws.
(3) Close the access door 822.
(4) Close the THS trailing edge access panels (Ref. AMM TASK 55-13-11-400-001):
(a) 334BB 334DB 334FB 334HB for the left elevator.
(b) 344BB 344DB 344FB 344HB for the right elevator.
(5) Remove the access platform(s).

[Rev.10 from 2021] 2026.04.01 06:51:33 UTC