W DOC AIRBUS | AMM A320F

Functional Test of the Rudder Mechanical Control

TASK 27-21-00-720-002-A
Functional Test of the Rudder Mechanical Control

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.
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: 210
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
SAFETY CLIP - CIRCUIT BREAKER
98A27308005000
1
PROTRACTOR-CONTROL SURFACE DEFLECTION
TR31-101
1
PROTRACTOR - CONTROL SURFACE
TR60-1
1
RIGMASTER SYSTEM-FLIGHT CONTROLS
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
210
CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD
325
VERTICAL STABILIZER TRAILING EDGE
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
TASK 31-32-00-860-001-A
Procedure to Get Access to the SYSTEM REPORT/TEST Menu Page
TASK 31-60-00-860-001-A
EIS Start Procedure
TASK 31-60-00-860-002-A
EIS Stop Procedure
TASK 34-10-00-860-004-A
Inertial Reference (IR) Alignment-Procedure
TASK 34-10-00-860-004-A-01
Automatic Inertial Reference (IR) Alignment-Procedure
TASK 34-10-00-860-004-A-02
Inertial Reference (IR) Alignment-Procedure to do a Check of the Links between each Flight Management and Guidance Computer (FMGC) and the three Air Data/Inertial Reference Units (ADIRUs)
TASK 34-10-00-860-005-A
ADIRS Stop Procedure
F Position of the Servocontrol
F Measurement of the Rudder Travel (Distance X)
3. Job Set-up
Subtask 27-21-00-010-053-A
A. Get Access
   (1) Put the ACCESS PLATFORM 10M (33 FT) - ADJUSTABLE in position at zone 325.
   (2) Open access doors 325ER 325EL 325DR 325DL.
F Position of the Servocontrol
Subtask 27-21-00-480-051-A
B. Installation of the tool.
   (1) Install the 98A27308005000 PROTRACTOR-CONTROL SURFACE DEFLECTION, or TR60-1 RIGMASTER SYSTEM-FLIGHT CONTROLS, or TR31-101 PROTRACTOR - CONTROL SURFACE on the rudder and on the vertical surface opposite the center servocontrol.
NOTE: If these tools are not available, you can measure the distance X to find the rudder travel.
F Measurement of the Rudder Travel (Distance X)
Subtask 27-21-00-860-063-A
C. Aircraft Maintenance Configuration
   (1) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
   (2) Do the EIS start procedure (Ref. AMM TASK 31-60-00-860-001).
   (3) Do the IR alignment procedure for the ADIRU 3 only (Ref. AMM TASK 34-10-00-860-004).
NOTE: ADIRU 1 and ADIRU 2 must be OFF. If ADIRU 1 and ADIRU 2 are ON, the test will not be successfully.
   (4) On the overhead panel 23VU, make sure that:
  • The FLT CTL/FAC1, FLT CTL ELAC1, and FLT CTL/SEC1 pushbutton switches are pushed (on these pushbutton switches, the FAULT and OFF legends are off.
   (5) On the overhead panel 24VU, make sure that:
  • The FLT CTL/FAC2, FLT CTL ELAC2, FLT CTL/SEC2 and FLT CTL/SEC3 pushbutton switches are pushed (on these pushbutton switches, the FAULT and OFF legends are off).
   (6) 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).
   (7) On the center pedestal, on the panel 110VU, make sure that the RUD TRIM indicator shows O.
   (8) On the center pedestal, on the ECAM control panel, push the F/CTL key (on the lower ECAM display unit, the F/CTL page comes into view).
Subtask 27-21-00-865-052-A
D. Make sure that this(these) circuit breaker(s) is(are) closed:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUAUTO FLT/FAC1/28VDC5CC1B04
49VUAUTO FLT/FAC1/26VAC14CC1B03
** ON A/C NOT FOR ALL
49VUAUTO FLT/FAC1/28VDC5CC1H10
49VUAUTO FLT/FAC1/26VAC14CC1H09
** ON A/C ALL
121VUAUTO FLT/RUDDER/TRIM/IND15CCM20
121VUAUTO FLT/FAC2/28VDC5CC2M19
121VUAUTO FLT/FAC2/26VAC14CC2M18
Subtask 27-21-00-865-055-A
E. Open, safety and tag this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C ALL
105VUELEC/CSM/G /EV AUTO/SPLY7XEC01
4. Procedure
Subtask 27-21-00-720-050-N ** ON A/C NOT FOR ALL
A. Functional Test of the Rudder Mechanical Control
ACTION
RESULT
1.In the CAPT or F/O seat:
  • Push the right pedal until it touches the mechanical stop (the adjustable stop).
The rudder moves smoothly to the right.
On the lower ECAM DU, on the F/CTL page:
  • The RUD/G, B and Y symbols are green.
  • The pointer of the RUD indicator moves smoothly to the right mark.
  • The protractor that measures the rudder travel shows 25° +/-1° (or X is included between 643.5 mm (25.3347 in.) and 696 mm (27.4016 in.)).
2.Slowly release the right pedal.
The rudder moves to the neutral position.
On the lower ECAM DU, on the F/CTL page:
  • The RUD/G, B and Y symbols are green.
  • The pointer of the RUD indicator moves to the neutral position.
  • The protractor that measures the rudder travel shows 0°. The maximum no-return value is 0.25° (X = 6.75 mm (0.2657 in.)).
NOTE: The no-return value is the sum of the two no-return values of the travel of the rudder for a right turn and a left turn.
3.Push the left pedal until it touches the mechanical stop.
The rudder moves smoothly to the left.
On the lower ECAM DU, on the F/CTL page:
  • The RUD/G, B and Y symbols are green.
  • The pointer of the RUD indicator moves smoothly to the left mark.
  • The protractor that measures the rudder travel shows 25° +/-1° (or X is included between 643.5 mm (25.3347 in.) and 696 mm (27.4016 in.)).
4.Slowly release the left pedal.
The rudder moves to the neutral position.
On the lower ECAM DU, on the F/CTL page:
  • The RUD/G, B and Y symbols are green.
  • The pointer of the RUD indicator moves to the neutral position.
  • The protractor that measures the rudder travel shows 0°. The maximum no-return value is 0.25° (X = 6.75 mm (0.2657 in.)).
5.On the center pedestal, on the MCDU:
On the MCDU:
  • The SYSTEM REPORT/TEST page comes into view.
  • Push the line key adjacent to the NAV indication.
  • The SYSTEM REPORT/TEST NAV page comes into view.
  • Push the line key adjacent to the ADR3 indication.
  • The ADR3 page comes into view.
  • Push the line key adjacent to the OUTPUT TESTS indication.
  • The ADR3 OUTPUT TESTS page comes into view.
  • Push the line key adjacent to the INTERFACE TEST indication.
  • Follow the initial condition (set the AIR DATA selector switch to CAPT 3).
  • The ADR3 INTERFACE TEST 1/2 page comes into view.
  • Push the NEXT PAGE key.
  • The ADR3 INTERFACE TEST 2/2 page comes into view.
  • Push the line key adjacent to the START TEST indication.
  • On the CAPT PFD, the speed scale moves up and stops at 367.7 kts.
NOTE: Ignore the RETARD warning. To stop it, push the FADEC pushbutton switch on MAINTENANCE panel 50VU.

  • Wait for 25 seconds approximately before you move the pedals.
On the lower ECAM DU, on the F/CTL page:
  • Make sure that the two indications related to the rudder travel limits are at the high speed position.
6.In the CAPT or F/O seat:

  • Push the right pedal until it touches the mechanical stop (adjustable stop).
The rudder moves smoothly to the right.
The protractor that measures the rudder travel shows 3.25° +/-0.3° (or X is included between 79.65 mm (3.1358 in.) and 95.85 mm (3.7736 in.)).
7.Slowly release the right pedal.
The rudder moves to the neutral position.
The protractor that measures the rudder travel shows 0°.
The maximum no-return value is 0.25° (X = 6.75 mm (0.2657 in.)).
8.Push the left pedal until it touches the mechanical stop.
The rudder moves smoothly to the left.
The protractor that measures the rudder travel shows 3.25° +/-0.3° (or X is included between 79.65 mm (3.1358 in.) and 95.85 mm (3.7736 in.)).
9.Slowly release the left pedal.
The rudder moves to the neutral position.
The protractor that measures the rudder travel shows 0°.
The maximum no-return value is 0.25° (X = 6.75 mm (0.2657 in.)).
10.On the center pedestal, on the MCDU:

  • Push the line key adjacent to the RETURN indication.

  • Push the MCDU MENU mode key.
On the MCDU:

  • The MCDU MENU page comes into view.

On the lower ECAM DU, on the F/CTL page:
  • The two indications related to the rudder travel limits go back to the low speed position.
Subtask 27-21-00-720-050-P ** ON A/C NOT FOR ALL
A. Functional Test of the Rudder Mechanical Control
ACTION
RESULT
1.In the CAPT or F/O seat:
  • Push the right pedal until it touches the mechanical stop (the adjustable stop).
The rudder moves smoothly to the right.
On the lower ECAM DU, on the F/CTL page:
  • The RUD/G, B and Y symbols are green.
  • The pointer of the RUD indicator moves smoothly to the right mark.
  • The protractor that measures the rudder travel shows 30 degrees +/-1 degree (or X is between 774.9 mm (30.5079 in.) and 827 mm (32.5591 in.)).
2.Slowly release the right pedal.
The rudder moves to the neutral position.
On the lower ECAM DU, on the F/CTL page:
  • The RUD/G, B and Y symbols are green.
  • The pointer of the RUD indicator moves to the neutral position.
  • The protractor that measures the rudder travel shows 0 degrees. The maximum no-return value is 0.25 degrees (X = 6.75 mm (0.2657 in.)).
NOTE: The no-return value is the sum of the two no-return values of the travel of the rudder for a right turn and a left turn.
3.Push the left pedal until it touches the mechanical stop.
The rudder moves smoothly to the left.
On the lower ECAM DU, on the F/CTL page:
  • The RUD/G, B and Y symbols are green.
  • The pointer of the RUD indicator moves smoothly to the left mark.
  • The protractor that measures the rudder travel shows 30 degrees +/-1 degree (or X is between 774.9 mm (30.5079 in.) and 827 mm (32.5591 in.)).
4.Slowly release the left pedal.
The rudder moves to the neutral position.
On the lower ECAM DU, on the F/CTL page:
  • The RUD/G, B and Y symbols are green.
  • The pointer of the RUD indicator moves to the neutral position.
  • The protractor that measures the rudder travel shows 0 degrees. The maximum no-return value is 0.25 degrees (X = 6.75 mm (0.2657 in.)).
5.On the center pedestal, on the MCDU:
On the MCDU:
  • The SYSTEM REPORT/TEST page comes into view.
  • Push the line key adjacent to the NAV indication.
  • The SYSTEM REPORT/TEST NAV page comes into view.
  • Push the line key adjacent to the ADR3 indication.
  • The ADR3 page comes into view.
  • Push the line key adjacent to the OUTPUT TESTS indication.
  • The ADR3 OUTPUT TESTS page comes into view.
  • Push the line key adjacent to the INTERFACE TEST indication.
  • Follow the initial condition (set the AIR DATA selector switch to CAPT 3).
  • The ADR3 INTERFACE TEST 1/2 page comes into view.
  • Push the NEXT PAGE key.
  • The ADR3 INTERFACE TEST 2/2 page comes into view.
  • Push the line key adjacent to the START TEST indication.
  • On the CAPT PFD, the speed scale moves up and stops at 367.7 kts.
NOTE: Ignore the RETARD warning. To stop it, push the FADEC pushbutton switch on MAINTENANCE panel 50VU.

  • Wait for approximately 30 seconds before you move the pedals.
On the lower ECAM DU, on the F/CTL page:
  • Make sure that the two indications related to the rudder travel limits are in the high speed position.
6.In the CAPT or F/O seat:

  • Push the right pedal until it touches the mechanical stop (adjustable stop).
The rudder moves smoothly to the right.
The protractor that measures the rudder travel shows 3.25 degrees +/-0.3 degrees (or X is included between 79.65 mm (3.1358 in.) and 95.85 mm (3.7736 in.)).
7.Slowly release the right pedal.
The rudder moves to the neutral position.
The protractor that measures the rudder travel shows 0 degrees.
The maximum no-return value is 0.25 degrees (X = 6.75 mm (0.2657 in.)).
8.Push the left pedal until it touches the mechanical stop.
The rudder moves smoothly to the left.
The protractor that measures the rudder travel shows 3.25 degrees +/-0.3 degrees (or X is between 79.65 mm (3.1358 in.) and 95.85 mm (3.7736 in.)).
9.Slowly release the left pedal.
The rudder moves to the neutral position.
The protractor that measures the rudder travel shows 0 degrees.
The maximum no-return value is 0.25 degrees (X = 6.75 mm (0.2657 in.)).
10.On the center pedestal, on the MCDU:

  • Push the line key adjacent to the RETURN indication.

  • Push the MCDU MENU mode key.
On the MCDU:

  • The MCDU MENU page comes into view.

On the lower ECAM DU, on the F/CTL page:
  • The two indications related to the rudder travel limits go back to the low speed position.
5. Close-up
Subtask 27-21-00-080-051-A
A. Remove the 98A27308005000 PROTRACTOR-CONTROL SURFACE DEFLECTION, or TR60-1 RIGMASTER SYSTEM-FLIGHT CONTROLS, or TR31-101 PROTRACTOR - CONTROL SURFACE.
Subtask 27-21-00-942-056-A
B. Make sure that the work area is clean and clear of tools and other items.
Subtask 27-21-00-865-056-A
C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C ALL
105VUELEC/CSM/G /EV AUTO/SPLY7XEC01
Subtask 27-21-00-410-053-A
D. Close Access
   (1) Close the access doors 325ER 325DR 325EL 325DL.
   (2) Remove the access platform(s).
Subtask 27-21-00-860-064-A
E. Put the aircraft back to its initial configuration.
   (1) 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).
   (2) Do the ADIRS stop procedure (Ref. AMM TASK 34-10-00-860-005).
   (3) Do the EIS stop procedure (Ref. AMM TASK 31-60-00-860-002).
   (4) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).
[Rev.10 from 2021] 2026.03.31 23:47:53 UTC
"Aviabrain" 2025