DOC AIRBUS | AMM A320FIn Service Wear Limits of the THS Actuator Arm Attach Fittings
TASK 55-16-34-200-002-A
In Service Wear Limits of the THS Actuator Arm Attach Fittings
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 55-16-34-941-053-A
Subtask 55-16-34-220-050-A
Subtask 55-16-34-410-054-A
[Rev.10 from 2021]
2026.04.01 02:05:09 UTC
In Service Wear Limits of the THS Actuator Arm Attach Fittings
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.
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.
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 3M (10 FT) |
| No specific | AR | WARNING NOTICE(S) |
| 98D27403500000 | 1 | PITCH TRIM CONTROL LOCKING |
| 98D27903500000 | 2 | PIN-SIDE STICK LOCKING |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 312AR |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 27-44-51-000-001-A | Removal of the Trimmable Horizontal Stabilizer (THS) Actuator |
| TASK 27-44-51-400-001-A | Installation of the Trimmable Horizontal Stabilizer (THS) Actuator |
| TASK 55-16-34-000-001-A | Removal of the Attach Fittings Bearings of the THS Actuator Arm |
| TASK 55-16-34-400-001-A | Installation of the Attach Fittings Bearings of the THS Acturator Arm |
In Service Wear Limits - THS Actuator Arm Attach FittingsSubtask 55-16-34-941-053-A
A. Safety Precautions
(1) Put the WARNING NOTICE(S) in the flight compartment to tell persons not to operate the flight controls.
(2) Put the 98D27903500000 PIN-SIDE STICK LOCKING in the CAPT and F/O side stick controllers.
(3) Put the 98D27403500000 PITCH TRIM CONTROL LOCKING in the cabin pedestal center.
Subtask 55-16-34-010-053-A (1) Put the WARNING NOTICE(S) in the flight compartment to tell persons not to operate the flight controls.
(2) Put the 98D27903500000 PIN-SIDE STICK LOCKING in the CAPT and F/O side stick controllers.
(3) Put the 98D27403500000 PITCH TRIM CONTROL LOCKING in the cabin pedestal center.
B. Access
(1) Put the ACCESS PLATFORM 3M (10 FT) in position at zone 312.
(2) Open the access door 312AR.
(3) Remove the primary lower attachment of the THS actuator. (Ref. AMM TASK 27-44-51-000-001).
(4) Remove the THS actuator arms attach fittings. (Ref. AMM TASK 55-16-34-000-001).
4. Procedure(1) Put the ACCESS PLATFORM 3M (10 FT) in position at zone 312.
(2) Open the access door 312AR.
(3) Remove the primary lower attachment of the THS actuator. (Ref. AMM TASK 27-44-51-000-001).
(4) Remove the THS actuator arms attach fittings. (Ref. AMM TASK 55-16-34-000-001).
Subtask 55-16-34-220-050-A
A. Fits and Clearances
(1) Complete an inspection of these dimensions,
Subtask 55-16-34-220-051-A (1) Complete an inspection of these dimensions,
| FIG. DETAIL AND ITEM N° | ORIGINAL MANUFACTURING LIMITS | IN-SERVICE WEAR LIMITS | |||||
|---|---|---|---|---|---|---|---|
| CC | 62.771 | 62.79 | | | 62.736 | | |
| OD 2 | (2.4713) | (2.4720) | | | (2.4699) | | |
| | | | 0.0100 | 0.0590 | | | 0.1280 |
| | | | (0.0004) | (0.0023) | | | (0.0050) |
| CC | 62.8 | 62.83 | | | | 62.864 | |
| ID 1 | (2.4724) | (2.4736) | | | | (2.4750) | |
B. Fits and Clearances
(1) Complete an inspection of these dimensions,
Subtask 55-16-34-220-052-A (1) Complete an inspection of these dimensions,
| FIG. DETAIL AND ITEM N° | ORIGINAL MANUFACTURING LIMITS | IN-SERVICE WEAR LIMITS | |||||
|---|---|---|---|---|---|---|---|
| CC | 50.787 | 50.8 | | | 50.775 | | |
| OD 3 | (1.9995) | (2.0000) | | | (1.9990) | | |
| | | | -0.0020 | 0.0240 | | | 0.0480 |
| | | | (-0.0001) | (0.0009) | | | (0.0019) |
| CC | 50.798 | 50.811 | | | | 50.823 | |
| ID 2 | (1.9999) | (2.0004) | | | | (2.0009) | |
C. Fits and Clearances
(1) Complete an inspection of these dimensions,
Subtask 55-16-34-220-053-A (1) Complete an inspection of these dimensions,
| FIG. DETAIL AND ITEM N° | ORIGINAL MANUFACTURING LIMITS | IN-SERVICE WEAR LIMITS | |||||
|---|---|---|---|---|---|---|---|
| CC | 65.971 | 65.99 | | | 65.936 | | |
| OD 4 | (2.5973) | (2.5980) | | | (2.5959) | | |
| | | | 0.0100 | 0.0590 | | | 0.1285 |
| | | | (0.0004) | (0.0023) | | | (0.0051) |
| CC | 66.0 | 66.030 | | | | 66.0645 | |
| ID 5 | (2.5984) | (2.5996) | | | | (2.6010) | |
D. Fits and Clearances
(1) Complete an inspection of these dimensions,
5. Close-up(1) Complete an inspection of these dimensions,
| FIG. DETAIL AND ITEM N° | ORIGINAL MANUFACTURING LIMITS | IN-SERVICE WEAR LIMITS | |||||
|---|---|---|---|---|---|---|---|
| CC | 50.787 | 50.8 | | | 50.775 | | |
| OD 3 | (1.9995) | (2.0000) | | | (1.9990) | | |
| | | | -0.0020 | 0.0240 | | | 0.0480 |
| | | | (-0.0001) | (0.0009) | | | (0.0019) |
| CC | 50.798 | 50.811 | | | | 50.823 | |
| ID 4 | (1.9999) | (2.0004) | | | | (2.0009) | |
Subtask 55-16-34-410-054-A
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the THS actuator arms attach fittings. (Ref. AMM TASK 55-16-34-400-001).
(3) Install the primary lower attachment of the THS actuator. (Ref. AMM TASK 27-44-51-400-001)
(4) Close the access panel 312AR.
Subtask 55-16-34-942-052-A (1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the THS actuator arms attach fittings. (Ref. AMM TASK 55-16-34-400-001).
(3) Install the primary lower attachment of the THS actuator. (Ref. AMM TASK 27-44-51-400-001)
(4) Close the access panel 312AR.
B. Remove Ground Equipment
(1) Remove the access platform(s).
(2) Remove the WARNING NOTICE(S).
(3) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(1) Remove the access platform(s).
(2) Remove the WARNING NOTICE(S).
(3) Remove the ground support and maintenance equipment, the special and standard tools and all other items.