W DOC AIRBUS | AMM A320F

Removal of the Pitch Trim Actuator from the Trimmable Horizontal Stabilizer (THS) Actuator

TASK 27-44-57-000-001-A
Removal of the Pitch Trim Actuator from the Trimmable Horizontal Stabilizer (THS) Actuator

WARNING: MAKE SURE THAT THE SAFETY DEVICES AND THE WARNING NOTICES ARE IN POSITION BEFORE YOU START A TASK ON OR NEAR:
  • THE FLIGHT CONTROLS
  • THE FLIGHT CONTROL SURFACES
  • THE LANDING GEAR AND RELATED DOORS
  • COMPONENTS THAT MOVE.
MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR DAMAGE TO 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.
ZONE: 310
FIN: 9CE
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 3M (10 FT)- ADJUSTABLE
No specific
AR
CAP - BLANKING
No specific
AR
SAFETY CLIP - CIRCUIT BREAKER
No specific
AR
WARNING NOTICE(S)
0U190360
1
PIN-RIGGING,THS ACTUATOR,MECHANICAL INPUT LEVER
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
310
FUSLG TAIL SECTION AFT OF AFT PRESS BHD
312AR
 C. Referenced Information
REFERENCE
DESIGNATION
TASK 29-00-00-864-001-A
Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action
F Rigging Pin of the Trimmable Horizontal Stabilizer (THS) Actuator
F Pitch Trim Actuator
3. Job Set-up
Subtask 27-44-57-010-050-A
A. Get Access
   (1) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position.
   (2) Open the access door 312AR.
Subtask 27-44-57-860-050-A
B. Aircraft Maintenance Configuration
F Rigging Pin of the Trimmable Horizontal Stabilizer (THS) Actuator
   (1) On the center pedestal, make sure that the pitch-trim control wheel is in the zero position.
   (2) Make sure that the Green and Yellow hydraulic systems are depressurized and put them in the maintenance configuration (Ref. AMM TASK 29-00-00-864-001).
   (3) Put the WARNING NOTICE(S) in position:
  • On the center pedestal, on the pitch-trim control wheel, to tell persons not to operate it
  • On the overhead panel, on the HYD section of HYD/FUEL panel 40VU, to tell persons not to pressurize the Green and Yellow hydraulic systems.
   (4) Put the 0U190360 PIN-RIGGING,THS ACTUATOR,MECHANICAL INPUT LEVER in the mechanical input of the THS actuator (1).
Subtask 27-44-57-865-050-A
C. Open, safety and tag this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUFLIGHT CONTROLS/ELAC1/NORM/SPLY15CE1B11
49VUFLIGHT CONTROLS/THS/ACTR/MOT219CE2B09
** ON A/C NOT FOR ALL
49VUFLIGHT CONTROLS/ELAC1/NORM/SPLY15CE1B06
49VUFLIGHT CONTROLS/THS/ACTR/MOT219CE2B04
** ON A/C ALL
105VUFLT CTL/ELAC1/STBY SPLY16CE1A01
121VUFLIGHT CONTROLS/THS ACTR/MOT319CE3Q17
121VUFLIGHT CONTROLS/THS ACTR/MOT119CE1Q16
4. Procedure
Subtask 27-44-57-020-050-A
A. Removal of the Pitch Trim Actuator
   (1) Disconnect the electrical connectors (3),(4),(5),(6) from the receptacles (7),(8),(9),(10) on the pitch trim actuator (2).
   (2) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
   (3) Hold the pitch trim actuator (2) and remove the screws (11) and the washers (12).
   (4) Remove the pitch trim actuator (2) from the THS actuator (1).
[Rev.10 from 2021] 2026.03.31 23:51:45 UTC
"Aviabrain" 2025