Check of the Rudder Trailing Edge Play

TASK 27-24-00-200-002-A
Check of the Rudder Trailing Edge Play

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: 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.

ZONE: 325

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 10M (33 FT) - ADJUSTABLE
No specific	AR	WARNING NOTICE(S)
97A27003000005	1	GAGE,ASSY - PUSH-PULL
OR	OR
97A27003000007	1	GAGE,ASSY-PUSH-PULL
98D27207516000	1	PIN-RIGGING,SET
98D27207546000	1	PIN-RIGGING
98D27303000001	1	LOAD,APPLICATION TOOL-ELEVATOR, AILERON, RUDDER
98D27303003001	1	CHECK TOOL (ANALOG)-AILERON,ELEVATOR,RUDDER
98D27303022000	1	TOOL CHECK - DIGITAL, AILERON ELEVATOR RUDDER

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
325	VERTICAL STABILIZER TRAILING EDGE
325BL, 325BR, 325CL, 325CR, 325DL, 325DR, 325EL, 325ER

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 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
Servocontrol - Location of Rigging Point
Installation of the Check Tool 98D27303003001
Installation of the Check Tool 98D27303022000
CHECK TOOL (DIGITAL) 98D27303022000 (Auto-recording Function)
Rudder Trailing Edge Play - Measurement ** ON A/C NOT FOR ALL
Rudder Trailing Edge Play - Check List
Rudder Trailing Edge Play - Measurement ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 27-24-00-861-056-A

A. Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).

Subtask 27-24-00-010-059-A

B. Get Access
(1) Put an ACCESS PLATFORM 10M (33 FT) - ADJUSTABLE in position at zone 325.
(2) Open the access doors 325BL 325BR 325CL 325CR 325DL 325DR 325EL 325ER.

Subtask 27-24-00-860-065-A

C. Aircraft maintenance configuration
(1) 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).
(2) On the HYD section of the maintenance panel 50VU :

release the LEAK MEASUREMENT VALVES/B and LEAK MEASUREMENT VALVES/Y pushbutton switches (the OFF legends of these pushbutton switches come on).

(3) On the center pedestal, on the panel 110VU, make sure that the RUD TRIM indicator shows 0.

Subtask 27-24-00-941-054-A

D. Safety Precautions
(1) Put WARNING NOTICE(S) on the pedals (CAPT and F/O) to tell persons not to operate them.
(2) Put WARNING NOTICE(S) on the panel 110VU to tell persons not to use the rudder trim.

Subtask 27-24-00-480-054-A

E. Installation of the Tools

Servocontrol - Location of Rigging Point

Installation of the Check Tool 98D27303003001

Installation of the Check Tool 98D27303022000

(1) Install the 98D27207546000 PIN-RIGGING (2) or the 98D27207516000 PIN-RIGGING,SET (98D27207516090) on the input lever of the lower servo control (1).
(2) Install the 98D27303000001 LOAD,APPLICATION TOOL-ELEVATOR, AILERON, RUDDER as follows:
(a) Clean and make the rudder trailing edge surface dry before you attach the tool.
(b) Attach the tool on the trailing edge of the rudder and in line with the middle servo controls.
(3) Install the 98D27303003001 CHECK TOOL (ANALOG)-AILERON,ELEVATOR,RUDDER or the 98D27303022000 TOOL CHECK - DIGITAL, AILERON ELEVATOR RUDDER on the trailing edge of the rudder as follows:
(a) Clean and make the tail-cone upper surface moist before you attach the dial gage pneumatic-support.
(b) Install the dial gage pneumatic-support on the tail-cone upper surface.
(c) Install the dial gage on the pneumatic-support.
(d) Put the pointer of the dial gage on the metal strip of the rudder trailing edge.
(e) Align the pointer of the dial gage with the axis of the rivet line.

Installation of the Check Tool 98D27303003001

Installation of the Check Tool 98D27303022000

1 Make sure that you do not install the pointer of the dial gage on a rivet head.

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 27-24-00-220-054-A ** ON A/C NOT FOR ALL

A. Check for too much Play (Green servo control pressurized)

NOTE: For monitoring and follow up of the play at the rudder trailing edge, it is recommended that the operator record in its own documentation the values measured.

(1) On the 98D27303000001 LOAD,APPLICATION TOOL-ELEVATOR, AILERON, RUDDER, connect the 97A27003000007 GAGE,ASSY-PUSH-PULL97A27003000005 GAGE,ASSY - PUSH-PULL (or equivalent).
(2) Apply a stable load of 30 daN (67.4427 lbf) in the right direction on the trailing edge.
(3) Keep this load applied and set the dial gage to zero.
(4) Release the load.
(5) At the same position, apply a stable load of 30 daN (67.4427 lbf) in the left direction on the trailing edge.
(6) 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 8 mm (0.3150 in.) (surface bending with 30 daN (67.4427 lbf) load applied)
Less than 16 mm (0.6299 in.) (maximum permitted value, 8 mm (0.3150 in.) surface bending included).

(a) If the value measured between A and B is less than 8 mm (0.3150 in.) (without play), do again a measurement.

Subtask 27-24-00-220-054-C ** ON A/C NOT FOR ALL

A. Check for too much Play (Green servo control pressurized)

NOTE: For monitoring and follow up of the play at the rudder trailing edge, it is recommended that the operator record in its own documentation the values measured.

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

More than 8 mm (0.3150 in.) (surface bending with 30 daN (67.4427 lbf) load applied)
Less than 12 mm (0.4724 in.) (maximum permitted value, 8 mm (0.3150 in.) surface bending included).

(a) If the value measured between A and B is less than 8 mm (0.3150 in.) (without play), do the measurement again.

Subtask 27-24-00-869-059-A

B. On the HYD section of the maintenance panel 50VU:
(1) Release the LEAK MEASUREMENT VALVES/G pushbutton switch (the OFF legend comes on).
(2) Push the LEAK MEASUREMENT VALVES/Y pushbutton switch (the OFF legend goes off).

Subtask 27-24-00-220-055-A ** ON A/C NOT FOR ALL

C. Check for too much Play (Yellow servo control pressurized)

NOTE: For monitoring and follow up of the play at the rudder trailing edge, it is recommended that the operator record in its own documentation the values measured.

(1) At the same position, apply a stable load of 30 daN (67.4427 lbf) in the right direction on the trailing edge.
(2) Keep this load applied and set the dial gage to zero.
(3) Release the load.
(4) At the same position, apply a stable load of 30 daN (67.4427 lbf) in the left direction on the trailing edge.
(5) 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 8 mm (0.3150 in.) (surface bending with 30 daN (67.4427 lbf) load applied)
Less than 16 mm (0.6299 in.) (Maximum permitted value, 8 mm (0.3150 in.) surface bending included).

(a) If the value measured between A and B is less than 8 mm (0.3150 in.) (without play), do again a measurement.

Subtask 27-24-00-220-055-B ** ON A/C NOT FOR ALL

C. Check for too much Play (Yellow servo control pressurized)

NOTE: For monitoring and follow up of the play at the rudder trailing edge, it is recommended that the operator record in its own documentation the values measured.

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

More than 8 mm (0.3150 in.) (surface bending with 30 daN (67.4427 lbf) load applied)
Less than 12 mm (0.4724 in.) (Maximum permitted value, 8 mm (0.3150 in.) surface bending included).

(a) If the value measured between A and B is less than 8 mm (0.3150 in.) (without play), do the measurement again.

Subtask 27-24-00-869-060-A

D. On the HYD section of the maintenance panel 50VU:
(1) Release the LEAK MEASUREMENT VALVES/Y pushbutton switch
(the OFF legend comes on).
(2) Push the LEAK MEASUREMENT VALVES/B pushbutton switch (the OFF legend goes off).

Subtask 27-24-00-220-056-A ** ON A/C NOT FOR ALL

E. Check for too much Play (Blue servo control pressurized)

NOTE: For monitoring and follow up of the play at the rudder trailing edge, it is recommended that the operator record in its own documentation the values measured.

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

More than 8 mm (0.3150 in.) (surface bending with 30 daN (67.4427 lbf) load applied)
Less than 16 mm (0.6299 in.) (maximum permitted value, 8 mm (0.3150 in.) surface bending included).

(a) If the value measured between A and B is less than 8 mm (0.3150 in.) (without play), do again a measurement.

Subtask 27-24-00-220-056-B ** ON A/C NOT FOR ALL

E. Check for too much Play (Blue servo control pressurized)

NOTE: For monitoring and follow up of the play at the rudder trailing edge, it is recommended that the operator record in its own documentation the values measured.

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

More than 8 mm (0.3150 in.) (surface bending with 30 daN (67.4427 lbf) load applied)
Less than 12 mm (0.4724 in.) (maximum permitted value, 8 mm (0.3150 in.) surface bending included).

(a) If the value measured between A and B is less than 8 mm (0.3150 in.) (without play), do the measurement again.

5. Close-up
Subtask 27-24-00-080-054-A

A. Removal of the Tools
(1) Remove the 98D27207546000 PIN-RIGGING (2) or 98D27207516000 PIN-RIGGING,SET pin (98D27207516090) from the input lever of the lower servocontrol (1).
(2) 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 rudder.

Subtask 27-24-00-942-054-A

B. Put the aircraft back to its initial configuration
(1) On the HYD section of the maintenance panel 50VU :

push the LEAK MEASUREMENT VALVES/G and LEAK MEASUREMENT VALVES/Y pushbutton switches (the OFF legends of these pushbutton switches go 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) Remove the WARNING NOTICE(S).
(4) Make sure that the work area is clean and clear of tools and other items.

Subtask 27-24-00-410-056-A

C. Close Access
(1) Close the access doors 325BL 325BR 325CL 325CR 325DL 325DR 325EL 325ER.
(2) Remove the access platform(s).

Subtask 27-24-00-862-055-A

D. De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).

[Rev.10 from 2021] 2026.04.01 06:50:37 UTC