DOC AIRBUS | AMM A320FRemoval of the Electronic Module of the Rudder Travel Limitation Unit
TASK 27-23-51-000-002-A
Removal of the Electronic Module of the Rudder Travel Limitation Unit
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Work Zones and Access Panels
C. Referenced Information
3. Job Set-up
Subtask 27-23-51-861-051-A Subtask 27-23-51-865-056-A
Subtask 27-23-51-020-051-A
[Rev.10 from 2021]
2026.03.31 23:49:13 UTC
Removal of the Electronic Module of the Rudder Travel Limitation Unit
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.
ZONE: 325
1. Reason for the JobSelf 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 |
| No specific | AR | WARNING NOTICE(S) |
| 98D27207545000 | 3 | PIN-RIGGING |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 325 | VERTICAL STABILIZER TRAILING EDGE |
| 325CL, 325CR, 325DL, 325DR |
| 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 29-00-00-864-001-A | Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action |
| 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 |
Electronic ModuleSubtask 27-23-51-861-051-A Subtask 27-23-51-865-056-A
B. Make sure that this(these) circuit breaker(s) is(are) closed:
Subtask 27-23-51-860-053-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | AUTO FLT/FAC1/28VDC | 5CC1 | B04 |
| 49VU | AUTO FLT/FAC1/26VAC | 14CC1 | B03 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | AUTO FLT/FAC1/28VDC | 5CC1 | H10 |
| 49VU | AUTO FLT/FAC1/26VAC | 14CC1 | H09 |
| ** ON A/C ALL | |||
| 121VU | AUTO FLT/RUDDER/TRIM/IND | 15CC | M20 |
| 121VU | AUTO FLT/FAC2/28VDC | 5CC2 | M19 |
| 121VU | AUTO FLT/FAC2/26VAC | 14CC2 | M18 |
C. Aircraft Maintenance Configuration
(2) Put the rudder pedals in the neutral position.
(3) Make sure that the RUD TRIM indicator on the panel 110VU of the center pedestal shows zero.
(4) Release the FLT CTL/FAC 1 pushbutton switch on the overhead panel 23VU and the OFF legend comes on.
(5) Release the FLT CTL/FAC 2 pushbutton switch on the overhead panel 24VU and the OFF legend comes on.
(6) Depressurize the Blue hydraulic system (Ref. AMM TASK 29-10-00-864-003).
Subtask 27-23-51-865-054-A 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.
(1) Pressurize the Blue hydraulic system with the electric pump. (Ref. AMM TASK 29-10-00-863-003)(2) Put the rudder pedals in the neutral position.
(3) Make sure that the RUD TRIM indicator on the panel 110VU of the center pedestal shows zero.
(4) Release the FLT CTL/FAC 1 pushbutton switch on the overhead panel 23VU and the OFF legend comes on.
(5) Release the FLT CTL/FAC 2 pushbutton switch on the overhead panel 24VU and the OFF legend comes on.
(6) Depressurize the Blue hydraulic system (Ref. AMM TASK 29-10-00-864-003).
D. Open, safety and tag this(these) circuit breaker(s):
Subtask 27-23-51-860-052-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | AUTO FLT/FAC1/28VDC | 5CC1 | B04 |
| 49VU | AUTO FLT/FAC1/26VAC | 14CC1 | B03 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | AUTO FLT/FAC1/28VDC | 5CC1 | H10 |
| 49VU | AUTO FLT/FAC1/26VAC | 14CC1 | H09 |
| ** ON A/C ALL | |||
| 121VU | AUTO FLT/RUDDER/TRIM/IND | 15CC | M20 |
| 121VU | AUTO FLT/FAC2/28VDC | 5CC2 | M19 |
| 121VU | AUTO FLT/FAC2/26VAC | 14CC2 | M18 |
E. Aircraft Maintenance Configuration
(1) Make sure that the hydraulic systems are depressurized and put them in the maintenance configuration
(Ref. AMM TASK 29-00-00-864-001)
(2) De-energize the aircraft electrical circuits. (Ref. AMM TASK 24-41-00-862-002)
(3) Put the WARNING NOTICE(S) in the flight compartment to tell persons not to operate the flight controls.
Subtask 27-23-51-010-051-A (1) Make sure that the hydraulic systems are depressurized and put them in the maintenance configuration
(Ref. AMM TASK 29-00-00-864-001)
(2) De-energize the aircraft electrical circuits. (Ref. AMM TASK 24-41-00-862-002)
(3) Put the WARNING NOTICE(S) in the flight compartment to tell persons not to operate the flight controls.
F. Get Access
(1) Put the ACCESS PLATFORM 10M (33 FT) - ADJUSTABLE in position at zone 325.
(2) Open the access panels 325DL and 325CL or 325DR and 325CR at the trailing edge of the vertical stabilizer.
Subtask 27-23-51-480-051-A (1) Put the ACCESS PLATFORM 10M (33 FT) - ADJUSTABLE in position at zone 325.
(2) Open the access panels 325DL and 325CL or 325DR and 325CR at the trailing edge of the vertical stabilizer.
G. Installation of the Rigging Pins
(1) Put a 98D27207545000 PIN-RIGGING (4) in the bellcrank assembly for the travel limitation unit (1).
(2) Put a 98D27207545000 PIN-RIGGING and a 98D27207545000 PIN-RIGGING (4) in each lever of the travel limitation unit (1).
4. Procedure(1) Put a 98D27207545000 PIN-RIGGING (4) in the bellcrank assembly for the travel limitation unit (1).
(2) Put a 98D27207545000 PIN-RIGGING and a 98D27207545000 PIN-RIGGING (4) in each lever of the travel limitation unit (1).
Subtask 27-23-51-020-051-A
A. Removal of the Electronic Module
(1) Cut and remove the lockwire which safeties the captive bolts (3).
(2) Loosen the captive bolts (3).
(3) Remove the electronic module (2) from the travel limitation unit (1).
(1) Cut and remove the lockwire which safeties the captive bolts (3).
(2) Loosen the captive bolts (3).
(3) Remove the electronic module (2) from the travel limitation unit (1).