W DOC AIRBUS | AMM A320F

Removal of the Heat-Exchanger Outlet-Temperature Sensor

TASK 36-11-17-000-001-A
Removal of the Heat-Exchanger Outlet-Temperature 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.
ZONE: 471
ZONE: 481
FIN: 6HA1
FIN: 6HA2
1. Reason for the Job
Self explanatory
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
AR
ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE
No specific
AR
CAP - BLANKING
No specific
AR
SAFETY BARRIER(S)
No specific
AR
SAFETY CLIP - CIRCUIT BREAKER
No specific
AR
WARNING NOTICE(S)
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
471
PYLON LEADING EDGE
481
PYLON LEADING EDGE
FOR [6HA1] (SENSOR-EXCHANGER OUT TEMP, ENG 1)
471AL
471BL
FOR [6HA2] (SENSOR-EXCHANGER OUT TEMP, ENG 2)
482AR
481BR
 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 49-00-00-860-006-A
APU Shutdown by External Power
TASK 49-00-00-860-006-A-01
APU Shutdown by Batteries
TASK 49-00-00-860-009-A
APU Shutdown by External Power (131-9(A))
TASK 49-00-00-860-009-A-01
APU Shutdown by Batteries (131-9(A))
F Heat-Exchanger Outlet-Temperature Sensor ** ON A/C NOT FOR ALL
F Heat-Exchanger Outlet-Temperature Sensor ** ON A/C NOT FOR ALL
F Heat-Exchanger Outlet-Temperature Sensor ** ON A/C NOT FOR ALL
3. Job Set-up
Subtask 36-11-17-861-050-A
A. Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002) or (Ref. AMM TASK 24-41-00-861-002).
Subtask 36-11-17-941-050-A
B. Safety Precautions
WARNING: MAKE SURE THAT THE PNEUMATIC SYSTEM IS DEPRESSURIZED BEFORE YOU START WORK. PRESSURIZED AIR CAN CAUSE INJURY TO PERSONNEL.
   (1) As necessary, use the applicable SAFETY BARRIERS, specified by the operator's instructions and your local regulations.
   (2) Make sure that on AIR COND panel 30VU, the ENG pushbutton switches are released (the OFF legends are on).
   (3) Put WARNING NOTICE(S) in position in the cockpit to tell persons not to:
  • Operate the engines
  • Operate the slats
  • Operate the APU switch
  • Operate the pneumatic system.
Subtask 36-11-17-865-050-A
C. Open, safety and tag this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
FOR FIN: 6HA1 (SENSOREXCHANGER OUT TEMP, ENG 1)
49VUAIR BLEED/ENG 1/CTL3HA1D12
49VUAIR BLEED/ENG 1/MONG2HA1D11
** ON A/C NOT FOR ALL
49VUFLIGHT CONTROLS/SLT/CTL AND MONG/SYS15CVB06
** ON A/C NOT FOR ALL
49VUAIR BLEED/ENG 1/CTL2HA1D11
** ON A/C NOT FOR ALL
49VUFLIGHT CONTROLS/SLT/CTL AND MONG/SYS15CVB01
** ON A/C ALL
121VUFLIGHT CONTROLS/SLT/CTL/SYS27CVR21
** ON A/C NOT FOR ALL
122VUAIR BLEED/ENG 1/MONG3HA1Z23
** ON A/C NOT FOR ALL
FOR FIN: 6HA2 (SENSOREXCHANGER OUT TEMP, ENG 2)
49VUFLIGHT CONTROLS/SLT/CTL AND MONG/SYS15CVB06
** ON A/C NOT FOR ALL
49VUAIR BLEED/ENG 2/MONG3HA2D12
** ON A/C NOT FOR ALL
49VUFLIGHT CONTROLS/SLT/CTL AND MONG/SYS15CVB01
** ON A/C ALL
121VUFLIGHT CONTROLS/SLT/CTL/SYS27CVR21
** ON A/C NOT FOR ALL
122VUAIR BLEED/ENG 2/CTL3HA2Z23
122VUAIR BLEED/ENG 2/MONG2HA2Z22
** ON A/C NOT FOR ALL
122VUAIR BLEED/ENG 2/CTL2HA2Z22
Subtask 36-11-17-010-050-A ** ON A/C NOT FOR ALL
D. Get Access
   (1) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position below the applicable access panel 471AL or 482AR.
   (2) Remove the applicable access panel(s):
     (a) FOR [6HA1] (SENSOR-EXCHANGER OUT TEMP, ENG 1)
remove 471AL.
     (b) FOR [6HA2] (SENSOR-EXCHANGER OUT TEMP, ENG 2)
remove 482AR.
Subtask 36-11-17-010-050-B ** ON A/C NOT FOR ALL
D. Get Access
   (1) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position below the applicable access panel 471BL or 481BR.
   (2) Remove the applicable access panel(s):
     (a) FOR [6HA1] (SENSOR-EXCHANGER OUT TEMP, ENG 1)
     (b) FOR [6HA2] (SENSOR-EXCHANGER OUT TEMP, ENG 2)
4. Procedure
Subtask 36-11-17-020-050-A ** ON A/C NOT FOR ALL
A. Removal of the Heat-Exchanger Outlet-Temperature Sensor
   (1) If you use the APU to energize the electrical circuits, stop the APU:
   (2) In the cockpit, on the SD bleed page:
     (a) Make sure that the pressure and the temperature of the bleed-air duct system are in ambient conditions.
WARNING: MAKE SURE THAT THE PNEUMATIC SYSTEM IS DEPRESSURIZED BEFORE YOU START WORK. PRESSURIZED AIR CAN CAUSE INJURY TO PERSONNEL.
WARNING: DO NOT TOUCH THE UNIT UNTIL IT IS SUFFICIENTLY COOL TO PREVENT BURNS WHEN YOU DO THE MAINTENANCE TASK(S).
   (3) Disconnect the electrical connector (1).
   (4) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
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.
   (5) Remove and discard the lockwire from the temperature sensor (2) and remove the temperature sensor.
   (6) Remove and discard the O-ring (3).
   (7) Install the CAP - BLANKING on the temperature sensor (2) and the sensor location on the bleed air-duct.
Subtask 36-11-17-020-050-B ** ON A/C NOT FOR ALL
A. Removal of the Heat-Exchanger Outlet-Temperature Sensor
   (1) If you use the APU to energize the electrical circuits, stop the APU:
   (2) In the cockpit, on the SD bleed page:
     (a) Make sure that the pressure and the temperature of the bleed-air duct system are in ambient conditions.
WARNING: MAKE SURE THAT THE PNEUMATIC SYSTEM IS DEPRESSURIZED BEFORE YOU START WORK. PRESSURIZED AIR CAN CAUSE INJURY TO PERSONNEL.
WARNING: DO NOT TOUCH THE UNIT UNTIL IT IS SUFFICIENTLY COOL TO PREVENT BURNS WHEN YOU DO THE MAINTENANCE TASK(S).
   (3) Disconnect the electrical connectors (3) and (4).
   (4) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
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.
   (5) Remove and discard the lockwire from the screws (2).
   (6) Remove the screws (2).
   (7) Remove the temperature sensor (1).
   (8) Remove and discard the O-ring (5).
   (9) Install the CAP - BLANKING on the temperature sensor (1) and the sensor location on the bleed air-duct.
[Rev.10 from 2021] 2026.04.01 01:08:44 UTC
"Aviabrain" 2025