W DOC AIRBUS | AMM A320F

Removal of the Pressure Sensor

TASK 47-41-13-000-001-A
Removal of the Pressure Sensor

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.
WARNING: YOU MUST PUT ON AND ATTACH A SAFETY HARNESS BEFORE YOU START WORK:
  • ON THE THS OR IN THE REAR FUSELAGE
  • ON TOP OF THE WINGS OR PYLONS.
WITHOUT A SAFETY HARNESS, YOU CAN FALL. THIS CAN KILL YOU OR CAUSE YOU INJURY.
FIN: 5YA ** ON A/C NOT FOR ALL
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 2M (6 FT)
No specific
AR
CAP - BLANKING
No specific
AR
PLUG - BLANKING
No specific
AR
SAFETY CLIP - CIRCUIT BREAKER
No specific
1
TIE WRAP
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
191AB
 C. Referenced Information
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 53-25-11-000-001-A
Removal of the Forward Belly Fairing Panels (191AT, 192AT, 191AB, 192AB)
F Pressure Sensor
3. Job Set-up
Subtask 47-41-13-860-050-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
   (1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002)
Subtask 47-41-13-865-050-A ** ON A/C NOT FOR ALL
B. Open, safety and tag this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
121VUIGGS/CTRL7YAN28
** ON A/C NOT FOR ALL
121VUIGGS/CTRL7YAP28
** ON A/C NOT FOR ALL
122VUCSAS / CTRL1HWU17
Subtask 47-41-13-010-050-A ** ON A/C NOT FOR ALL
C. Get Access
   (1) Put an access platform ACCESS PLATFORM 2M (6 FT) in position at the zones 191 and 192.
   (2) Remove forward belly-fairing panel 191AB (Ref. AMM TASK 53-25-11-000-001).
4. Procedure
Subtask 47-41-13-020-050-A ** ON A/C NOT FOR ALL
A. Removal of the pressure sensor.
WARNING: DO NOT GO INTO THE WORK AREA UNTIL A MINIMUM OF 5 MINUTES AFTER YOU REMOVE THE ACCESS PANEL. LET AIR FLOW THROUGH THE WORK AREA. AIR FROM THIS SYSTEM HAS A LOW OXYGEN CONTENT AND CAN CAUSE INJURY OR DEATH.
CAUTION: BE CAREFUL WHEN YOU TOUCH THIS ASSEMBLY. IT HAS PRECISION- TOLERANCE COMPONENTS WITH VERY POLISHED SURFACES. IF YOU ARE NOT CAREFUL, IT IS VERY EASY TO CAUSE DAMAGE TO THESE COMPONENTS (INTERNAL CONTAMINATION, EXTERNAL IMPACT DAMAGE).
CAUTION: REMOVE OR INSTALL PACKING SEALS CAREFULLY. DAMAGE TO SEALS OR SEALING SURFACES CAN CAUSE LEAKAGE AND CORROSION.
   (1) Disconnection of the electrical connector (6).
     (a) Disconnect the electrical connector (6) from the pressure sensor (5).
     (b) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
     (c) Temporarily attach the electrical connector (6) with a TIE WRAP to the IGGS pallet.
WARNING: USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.
   (2) Cut, remove and discard the lockwire.
   (3) Carefully remove the pressure sensor (5) from the sensor inlet port (2) on the ASM inlet-duct assembly (duct assembly) (1).
   (4) Remove and discard the packing (3).
   (5) Remove the shim(s) (4) from the pressure sensor (5).
NOTE: Record the quantity of shim(s) for the installation procedure.
   (6) Put the PLUG-BLANKING in each disconnected line end.
[Rev.10 from 2021] 2026.04.02 06:26:20 UTC
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