W DOC AIRBUS | AMM A320F

Installation of the Flight Control Pressure Switch

TASK 27-92-17-400-003-A
Installation of the Flight Control Pressure Switch

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.
WARNING: OBEY THE HYDRAULIC SAFETY PROCEDURES.
FIN: 10CE1
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
CONTAINER - HYDRAULIC FLUID RESISTANT
No specific
AR
PLUG - BLANKING
No specific
1
WARNING NOTICE(S)
No specific
Torque wrench: range to between 3.470 and 3.186 m.daN (25.59 and 23.50 lbf.ft ) T
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.02ABA1)
Phosphate Ester Hydraulic Fluid-General Power - -
No specific
lockwire, corrosion-resistant steel, 0.8 mm (0.032 in.)
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
195BB
 D. Expendable Parts
FIG.ITEM
DESIGNATION
IPC-CSN
3
PACKING
AIPC 27-92-03-01-020
3
PACKING
AIPC 27-92-83-01-040
 E. Referenced Information
REFERENCE
DESIGNATION
TASK 20-28-00-912-802-A
Electrical Bonding - General Maintenance Procedure
TASK 27-96-00-710-011-A
Operational Test after Removal/Installation of the Pressure Switches
TASK 29-00-00-910-002-A
Safety Procedures of the Hydraulic System
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 29-14-00-614-001-A
Depressurization of the Hydraulic Reservoirs
TASK 29-14-00-614-002-A
Pressurization of the Hydraulic Reservoirs through the Ground Connector
TASK 29-14-00-614-002-A-01
Pressurization of the Hydraulic Reservoirs with the Auxiliary Power Unit (APU)
F Flight Control Pressure Switch of the Blue Hydraulic System
3. Job Set-up
Subtask 27-92-17-860-057-A
A. Aircraft Maintenance Configuration
   (1) Obey the hydraulic safety procedures (Ref. AMM TASK 29-00-00-910-002).
   (2) Make sure that the access panel 195BB is open.
   (3) Make sure that the Blue hydraulic system is depressurized and put it in the maintenance configuration.
(Ref. AMM TASK 29-10-00-864-003).
   (4) Make sure that the reservoir of the Blue hydraulic system is depressurized (Ref. AMM TASK 29-14-00-614-001).
   (5) Make sure that the WARNING NOTICE(S) are in position to tell persons not to pressurize the Blue hydraulic system:
  • In the cockpit on the hydraulic section 40VU of the overhead panel.
  • On the ground service panel of the Blue hydraulic system.
   (6) Make sure that the CONTAINER - HYDRAULIC FLUID RESISTANT is in position below the flight control pressure switch to collect hydraulic fluid.
Subtask 27-92-17-865-058-A
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUFLIGHT CONTROLS/ELAC1/NORM/SPLY15CE1B11
49VUFLIGHT CONTROLS/SEC1/NORM/SPLY21CE1B08
** ON A/C NOT FOR ALL
49VUFLIGHT CONTROLS/ELAC1/NORM/SPLY15CE1B06
49VUFLIGHT CONTROLS/SEC1/NORM/SPLY21CE1B03
** ON A/C ALL
105VUFLIGHT CONTROLS/ELAC2/STBY SPLY16CE2A02
105VUFLT CTL/ELAC1/STBY SPLY16CE1A01
121VUFLIGHT CONTROLS/ELAC2/NORM/SPLY15CE2R20
4. Procedure
Subtask 27-92-17-420-054-B
A. Installation of the Flight Control Pressure Switch 10CE1
   (1) Lubricate the new AIPC 27-92-03-01-020 PACKING (3) or AIPC 27-92-83-01-040 PACKING (3) with Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) .
   (2) Remove the PLUG - BLANKING from the ports of the manifold.
   (3) Put the new packing (3) in position on the flight control pressure switch (2).
   (4) Install the flight control pressure switch (2) in the manifold (4) and TORQUE it to between 3.470 and 3.186 m.daN (25.59 and 23.50 lbf.ft ) T.
   (5) Safety the flight control pressure switch (2) with lockwire, corrosion-resistant steel, 0.8 mm (0.032 in.).
   (6) Install the clamp (9), the bonding strap (7), the screw (8), the washer (6) and the nut (5) at the flight control pressure switch (2) (Ref. AMM TASK 20-28-00-912-802).
   (7) Remove the blanking cap from the electrical connector (1).
   (8) Connect the electrical connector (1).
Subtask 27-92-17-865-055-A
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUFLIGHT CONTROLS/ELAC1/NORM/SPLY15CE1B11
49VUFLIGHT CONTROLS/SEC1/NORM/SPLY21CE1B08
** ON A/C NOT FOR ALL
49VUFLIGHT CONTROLS/ELAC1/NORM/SPLY15CE1B06
49VUFLIGHT CONTROLS/SEC1/NORM/SPLY21CE1B03
** ON A/C ALL
105VUFLIGHT CONTROLS/ELAC2/STBY SPLY16CE2A02
105VUFLT CTL/ELAC1/STBY SPLY16CE1A01
121VUFLIGHT CONTROLS/ELAC2/NORM/SPLY15CE2R20
Subtask 27-92-17-710-052-A
C. Test
   (1) Pressurize the reservoir of the Blue hydraulic system (Ref. AMM TASK 29-14-00-614-002).
   (2) Pressurize the Blue hydraulic system (Ref. AMM TASK 29-10-00-863-003).
   (3) Do a test of the flight control pressure switch 10CE1 (Ref. AMM TASK 27-96-00-710-011).
   (4) Examine the connection of the flight control pressure switch and make sure that there are no leaks.
5. Close-up
Subtask 27-92-17-864-055-A
A. Depressurize the Blue hydraulic system (Ref. AMM TASK 29-10-00-864-003).
Subtask 27-92-17-410-052-A
B. Close Access
   (1) Remove the container.
   (2) Remove the WARNING NOTICE(S).
   (3) Close the access panel 195BB.
[Rev.10 from 2021] 2026.04.01 08:02:44 UTC
"Aviabrain" 2025