W DOC AIRBUS | AMM A320F

Installation of the Fan Air Valve (FAV) Scoop

TASK 36-11-54-400-806-A
Installation of the Fan Air Valve (FAV) Scoop

WARNING: MAKE SURE THAT THE PNEUMATIC SYSTEM IS DEPRESSURIZED BEFORE YOU START WORK. PRESSURIZED AIR CAN CAUSE INJURY TO PERSONNEL.
WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE AFTER SHUTDOWN. THE ENGINE CAN STAY HOT FOR A LONG TIME. IF YOU DO NOT OBEY THIS INSTRUCTION, INJURY CAN OCCUR.
WARNING: ALWAYS USE APPLICABLE GLOVES TO TOUCH HOT PARTS. HOT PARTS CAN CAUSE INJURY TO PERSONS.
WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
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
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 2M (6 FT) - ADJUSTABLE
No specific
AR
WARNING NOTICE(S)
No specific
Torque wrench: range to between 0.38 and 0.31 m.daN (33.63 and 27.43 lbf.in ) T
No specific
Torque wrench: range to between 1.41 and 1.3 m.daN (124.78 and 115.04 lbf.in ) T
98D27803000000
1
LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION
98D36003004000
1
BLOCKING DEVICE FAV
98L12003001000
AR
HARNESS,SAFETY
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.06LDG2)
Non Hardening Jointing Putty-High Temp. Area - Structure
(Material No.14QDC1)
Wire-Locking Dia: 0.5 mm (0.020 inch) CRES -
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
471
PYLON LEADING EDGE
481
PYLON LEADING EDGE
191DB
FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
413DT, 413ET, 437AL, 438AR, 451AL, 451DL, 452AR, 452DR
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
423DT, 423ET, 447AL, 448AR, 461AL, 461DL, 462AR, 462DR
 D. Expendable Parts
FIG.ITEM
DESIGNATION
IPC-CSN
23
SEAL
AIPC 36-11-86-03-350
 E. Referenced Information
REFERENCE
DESIGNATION
TASK 12-00-00-481-002-A
Installation of the Wingrip
TASK 20-23-22-910-001-A
Marking of the Unions after Application of Standard or Specific Tightening Torque
TASK 20-28-00-912-802-A
Electrical Bonding - General Maintenance Procedure
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 24-41-00-862-002-A
De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01
De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 27-00-00-480-002-A
Installation of the Flap/Slat Control-Lever Locking Tool (98D27803000000)
TASK 36-11-00-740-802-A
BITE Test of the Engine Bleed Air System (EBAS) (System Test)
TASK 36-11-42-000-802-A
Removal of the Bleed-Air Precooler Exchanger
TASK 36-11-42-400-802-A
Installation of the Bleed-Air Precooler Exchanger
TASK 36-11-44-000-802-A
Removal of the Bleed-Air Precooler-Exchanger Cold-Inlet
TASK 36-11-44-400-802-A
Installation of the Bleed-Air Precooler-Exchanger Cold-Inlet
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))
TASK 71-00-00-860-833-A
Procedure to Prevent Engine Motoring
TASK 71-13-00-010-802-A
Opening of the Fan Cowl Doors
TASK 71-13-00-410-802-A
Closing of the Fan Cowl Doors
TASK 78-30-00-040-805-A
Deactivation of the Thrust Reverser System for Ground Maintenance
TASK 78-30-00-440-805-A
Reactivation of the Thrust Reverser System after Ground Maintenance
TASK 78-30-06-000-801-A
Removal of the Thrust Reverser Hinge Access Panels
TASK 78-30-06-400-801-A
Installation of the Thrust Reverser Hinge Access Panels
TASK 78-36-00-010-802-A
Opening of the Thrust Reverser Cowl-Doors
TASK 78-36-00-410-802-A
Closing of the Thrust Reverser Cowl-Doors
F FAV Scoop
F Fan Air Valve (FAV) locking device tool
3. Job Set-up
Subtask 36-11-54-860-058-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
   (1) Make sure that the aircraft electrical circuits are energized (Ref. AMM TASK 24-41-00-861-002) or (Ref. AMM TASK 24-41-00-861-002).
   (2) Make sure that engine 1(2) is shutdown for a minimum of 5 minutes before you do this procedure.
   (3) On AIR COND panel 30VU:
  • Make sure that the ENG 1(2) BLEED pushbutton-switch is released (OFF legend on).
  • Make sure that the APU BLEED pushbutton-switch is released (ON legend off).
  • Make sure that the WARNING NOTICE(S) is in position to tell persons not to operate the pneumatic system.
   (4) Make sure that you did the procedure to prevent engine motoring
(Ref. AMM TASK 71-00-00-860-833).
   (5) On access door 191DB, on the HP ground connector:
  • Make sure that the WARNING NOTICE(S) is in position to tell persons not to pressurize the pneumatic system.
   (6) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position below the engine.
   (7) On FLAPS panel 114VU:
     (a) Put the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION in position on the flap/slat control lever (Ref. AMM TASK 27-00-00-480-002).
   (8) Put a WARNING NOTICE(S) on the flap/slat control lever to tell persons not to operate the flap/slat controls.
   (9) Put on and attach a 98L12003001000 HARNESS,SAFETY before you start work in the work area (Ref. AMM TASK 12-00-00-481-002).
Subtask 36-11-54-020-069-A ** ON A/C NOT FOR ALL
B. Prepare for the Installation
   (1) Make sure that the forward thrust-reverser-hinge access-panels are removed (Ref. AMM TASK 78-30-06-000-801):
     (a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451DL 452DR
     (b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461DL 462DR
Subtask 36-11-54-010-092-A ** ON A/C NOT FOR ALL
C. Get Access
   (1) Make sure that the fan cowl doors are closed (Ref. AMM TASK 71-13-00-410-802):
     (a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL 438AR
     (b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR
   (2) Make sure that the thrust reverser cowl-doors are closed (Ref. AMM TASK 78-36-00-410-802):
     (a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL 452AR
     (b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL 462AR
   (3) Make sure that these access panels are removed:
     (a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
413DT 413ET
     (b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
423DT 423ET
Subtask 36-11-54-040-071-A ** ON A/C NOT FOR ALL
D. Deactivation of the Thrust Reverser System for Maintenance
WARNING: YOU MUST DEACTIVATE THE THRUST REVERSER BEFORE YOU DO WORK ON OR AROUND IT. IF YOU DO NOT, THE THRUST REVERSER CAN OPERATE ACCIDENTALLY AND CAUSE AN INJURY AND/OR DAMAGE.
   (1) Make sure that you did the deactivation of the thrust reverser system for ground maintenance (Ref. AMM TASK 78-30-00-040-805).
Subtask 36-11-54-865-082-A ** ON A/C NOT FOR ALL
E. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUAIR BLEED/ENG 2/MONG3HA2D12
49VUAIR BLEED/ENG 1/CTL2HA1D11
122VUAIR BLEED/ENG 1/MONG3HA1Z23
122VUAIR BLEED/ENG 2/CTL2HA2Z22
4. Procedure
Subtask 36-11-54-420-068-B ** ON A/C NOT FOR ALL
A. Installation of the FAV Scoop
   (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) Make sure that the precooler exchanger is removed (Ref. AMM TASK 36-11-42-000-802).
   (4) Make sure that the bleed-air precooler-exchanger inlet is removed (Ref. AMM TASK 36-11-44-000-802).
   (5) Clean the component interfaces and the adjacent area.
   (6) Do an inspection of the component interfaces and the adjacent area.
   (7) Make sure that the seal (12) of the scoop (9) is in the correct condition.
   (8) Install a new AIPC 36-11-86-03-350 SEAL (23) in the FAV (1).
   (9) Install the clamp (24) on the scoop (9) and the FAV (1). Do not tighten the clamp (24) at this time.
   (10) Install the scoop (9) and the FAV (1) at the same time on the structure (7) through the precooler fairing.
Subtask 36-11-54-010-093-A ** ON A/C NOT FOR ALL
B. Get Access
   (1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-802):
     (a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL 438AR
     (b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR
Subtask 36-11-54-010-094-A ** ON A/C NOT FOR ALL
C. Get Access
   (1) Open the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-010-802):
   (2) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL 452AR
   (3) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL 462AR
   (4) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position below the engine.
Subtask 36-11-54-420-069-B ** ON A/C NOT FOR ALL
D. Installation of the FAV Scoop
   (1) Carefully engage the pins (22) of the FAV (1) with the pin holes (21).
NOTE: The pins (22) hold the FAV (1) in position in the pin holes (21).
   (2) Install the washers (10) and the bolts (11) on the scoop (9) and the structure (7).
   (3) Tighten the bolts (11).
   (4) Make sure that clearance 'A1' between the scoop (9) and the structure (7) is a minimum of 3 mm (0.1181 in.).
   (5) Put the scoop rod (8) in position on the bracket (4).
NOTE: You can get access below the left side of the thrust reverser to put the scoop rod (8) in position on the bracket (4) more easily.
   (6) Install the bushing (5), washers (3), nut (2) and the bolt (6) on the bracket (4) and tighten the bolt (6).
NOTE: You can get access below the left side of the thrust reverser to install the bushing (5), washers (3), nut (2) and the bolt (6) on the bracket (4) more easily.
   (7) Put the FAV actuator rod (20) in position:
     (a) Install the 98D36003004000 BLOCKING DEVICE FAV (25) to lock the FAV (1) in the closed position.
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.
     (b) If necessary, adjust the length of the FAV actuator rod (20):
  • Remove the lockwire from the nut of the FAV actuator rod (20).
  • Loosen the nut of the FAV actuator rod (20).
  • As necessary, tighten or loosen the FAV actuator rod (20) to adjust the length.
  • Tighten the nut of the FAV actuator rod (20).
  • Install the 14QDC1Wire-Locking Dia: 0.5 mm (0.020 inch) CRES - on the nut of the FAV actuator rod (20).
     (c) Put the FAV actuator rod (20) in position on the FAV rod (17).
   (8) Put the plate (19) in position on the FAV (1) and install the bolt (18).
   (9) Tighten the bolt (18) with your hand but do not torque at this time.
   (10) Remove the 98D36003004000 BLOCKING DEVICE FAV (25) from the FAV (1).
   (11) TORQUE the clamp (24) to between 1.41 and 1.3 m.daN (124.78 and 115.04 lbf.in ) T:
     (a) Identify the tightened union nut of the clamp (24) with a red line (Ref. AMM TASK 20-23-22-910-001).
   (12) Install the washer (14), bonding strap (15), nut (16) and the bolt (13) on the FAV (1).
   (13) Tighten the bolt (13) and do the electrical bonding (Ref. AMM TASK 20-28-00-912-802).
   (14) Apply the Non Hardening Jointing Putty-High Temp. Area - Structure (Material No.06LDG2) on the bonding strap (15), nut (16), washer (14) and the bolt (13).
Subtask 36-11-54-410-084-A ** ON A/C NOT FOR ALL
E. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Close the thrust reverser doors (Ref. AMM TASK 78-36-00-410-802):
     (a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL 452AR
     (b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL 462AR
Subtask 36-11-54-420-070-B ** ON A/C NOT FOR ALL
F. Close Access
   (1) TORQUE the bolt (18) of the FAV rod (17) to between 0.38 and 0.31 m.daN (33.63 and 27.43 lbf.in ) T, through the forward right hinge-access-panels.
   (2) Tighten the bolt (6) of the scoop rod (8), through the forward left hinge-access-panels.
   (3) Install the forward thrust-reverser-hinge access-panels (Ref. AMM TASK 78-30-06-400-801):
     (a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451DL 452DR.
     (b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461DL 462DR.
   (4) Install the bleed-air precooler-exchanger inlet (Ref. AMM TASK 36-11-44-400-802).
   (5) Install the precooler exchanger (Ref. AMM TASK 36-11-42-400-802).
Subtask 36-11-54-865-083-A ** ON A/C NOT FOR ALL
G. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUAIR BLEED/ENG 2/MONG3HA2D12
49VUAIR BLEED/ENG 1/CTL2HA1D11
122VUAIR BLEED/ENG 1/MONG3HA1Z23
122VUAIR BLEED/ENG 2/CTL2HA2Z22
Subtask 36-11-54-790-055-A ** ON A/C NOT FOR ALL
H. Test
   (1) Do the BITE test of the engine bleed-air system (Ref. AMM TASK 36-11-00-740-802).
5. Close-up
Subtask 36-11-54-440-065-A ** ON A/C NOT FOR ALL
A. Do the reactivation of the thrust reverser system after ground maintenance (Ref. AMM TASK 78-30-00-440-805).
Subtask 36-11-54-410-085-A ** ON A/C NOT FOR ALL
B. Close Access
   (1) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-802):
     (a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL 438AR
     (b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR
   (2) Remove all the fixtures, tools, test and support equipment used during this procedure.
   (3) Remove the WARNING NOTICE(S).
   (4) Remove the access platform(s).
Subtask 36-11-54-862-064-A ** ON A/C NOT FOR ALL
C. De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002) or (Ref. AMM TASK 24-41-00-862-002).
[Rev.10 from 2021] 2026.04.01 01:13:42 UTC
"Aviabrain" 2025