W DOC AIRBUS | AMM A320F

Removal of the Apron 333AT/333AB/343AT/343AB

TASK 55-15-11-000-001-A
Removal of the Apron 333AT/333AB/343AT/343AB

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: 330
ZONE: 340
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
SAFETY CLIP - CIRCUIT BREAKER
No specific
1
WARNING NOTICE(S)
No specific
1
WEDGE - NON METALLIC
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
330
THS LH AND LH ELEVATOR
340
THS RH AND RH ELEVATOR
 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 Apron - Trimmable Horizontal Stabilizer
F Removal/Installation Sequence of the Screws
3. Job Set-up
Subtask 55-15-11-865-050-A
A. 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
49VUFLIGHT CONTROLS/SEC1/NORM/SPLY21CE1B08
49VUAUTO FLT/FAC1/28VDC5CC1B04
49VUAUTO FLT/FAC1/26VAC14CC1B03
** ON A/C NOT FOR ALL
49VUFLIGHT CONTROLS/ELAC1/NORM/SPLY15CE1B06
49VUFLIGHT CONTROLS/THS/ACTR/MOT219CE2B04
49VUFLIGHT CONTROLS/SEC1/NORM/SPLY21CE1B03
49VUAUTO FLT/FAC1/28VDC5CC1H10
49VUAUTO FLT/FAC1/26VAC14CC1H09
** ON A/C ALL
105VUFLIGHT CONTROLS/ELAC2/STBY SPLY16CE2A02
105VUFLT CTL/ELAC1/STBY SPLY16CE1A01
105VUFLT CTL/SEC1/STBY SPLY22CEB01
121VUAUTO FLT/RUDDER/TRIM/IND15CCM20
121VUAUTO FLT/FAC2/28VDC5CC2M19
121VUAUTO FLT/FAC2/26VAC14CC2M18
121VUFLIGHT CONTROLS/SEC3/SPLY21CE3Q19
121VUFLIGHT CONTROLS/SEC2/SPLY21CE2Q18
121VUFLIGHT CONTROLS/THS ACTR/MOT319CE3Q17
121VUFLIGHT CONTROLS/THS ACTR/MOT119CE1Q16
121VUFLIGHT CONTROLS/ELAC2/NORM/SPLY15CE2R20
Subtask 55-15-11-010-050-A
B. Get Access
   (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) Put the WARNING NOTICE(S) in position in the cockpit to tell persons:
  • not to pressurize the hydraulic systems,
  • not to operate the flight controls.
   (3) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position at the trimmable horizontal stabilizer.
4. Procedure
Subtask 55-15-11-020-050-A
A. Removal of the Aprons
CAUTION: DO NOT CAUSE DAMAGE TO THE SURFACES. THE COMPONENTS ARE MADE OF CARBONFIBER REINFORCED PLASTIC.
   (1) Remove the upper apron 333AT (343AT).
     (a) Remove the screws (1) and (2) and the retainer (3).
NOTE: Remove the screws in the sequence as shown
F Removal/Installation Sequence of the Screws
Identify the position of the screws for the installation procedure.
     (b) Carefully loosen the apron, with a WEDGE - NON METALLIC.
     (c) Remove the apron (4).
     (d) If necessary remove the screws (10), the cover strip (12) and the seal (14).
   (2) Remove the lower apron 333AB (343AB).
     (a) Remove the screws (5), (6) and (7) and the retainer (8).
NOTE: Remove the screws in the sequence as shown
F Removal/Installation Sequence of the Screws
Identify the position of the screws for the installation procedure.
     (b) Carefully loosen the apron, with a WEDGE - NON METALLIC.
     (c) Remove the apron (9).
     (d) If necessary remove the screws (10), the cover strip (11) and the seal (13).
[Rev.10 from 2021] 2026.04.01 02:04:58 UTC
"Aviabrain" 2025