W DOC AIRBUS | AMM A320F

Removal of the Fuel Recirculation Pipe

TASK 28-16-00-000-001-A
Removal of the Fuel Recirculation Pipe

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: IF POSSIBLE, KEEP FUEL AND OIL AWAY FROM YOUR SKIN. USE PROTECTIVE CLOTHES. FUEL AND OIL CAN DRY YOUR SKIN AND CAUSE SKIN IRRITATION.
WARNING: BEFORE YOU OPEN PHC CIRCUIT BREAKERS 2DA1(2,3), OPEN PROBE HEATER CIRCUIT-BREAKERS 1DA1(2), 3DA1(2,3), 4DA1(2,3) AND 5DA1(2,3). IF YOU DO NOT OBEY THIS SEQUENCE: - THE PROBES WILL BECOME TOO HOT. - THIS CAN CAUSE DAMAGE TO EQUIPMENT AND INJURY TO MAINTENANCE PERSONNEL.
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
PLUG - BLANKING
No specific
AR
SAFETY CLIP - CIRCUIT BREAKER
No specific
AR
WARNING NOTICE(S)
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
471BL
413EL, 424AR, 424CR, 424ER, 471AL, 482AR, 482BR, 482CR
415AL, 415AR, 415BL, 425AL, 425AR, 425BL, 451DL, 451EL, 461DL, 461EL, 481BL
413AL, 413CL, 471CL
423AR, 423CR, 471DL, 481BR, 481CR, 481DR
FOR [1000EM1] (ENGINE-1)
437AL, 438AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR
FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL
 C. Referenced Information
REFERENCE
DESIGNATION
TASK 26-21-41-000-001-E
Removal of the Engine Fire-Extinguisher Bottle
TASK 28-00-00-910-001-A
Fuel Safety Procedures
TASK 28-25-00-650-001-A
Pressure Defuel
TASK 28-25-00-650-003-A
To Drain Remaining Fuel from the Wing Tanks and the Center Tank
TASK 28-25-00-650-003-A-01
To Drain Remaining Fuel from the Wing Tanks and the Center Tank
TASK 29-00-00-910-002-A
Safety Procedures of the Hydraulic System
TASK 29-10-00-864-001-A
Depressurize the Green Hydraulic System
TASK 29-10-00-864-002-A
Depressurize the Yellow Hydraulic System
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 36-11-54-000-802-A
Removal of the Fan Air-Valve Actuator
TASK 54-51-21-000-802-A
Removal of the Pylon Lateral Access-Doors
TASK 54-52-11-000-002-A
Removal of the Access Panels
TASK 54-52-11-000-002-B
Removal of the Access Panels
TASK 54-53-11-000-002-A
Removal of the Pylon-to-Wing Access Panels
TASK 54-53-11-000-002-B
Removal of the Pylon-to-Wing Access Panels
TASK 54-53-11-000-804-A
Removal of the Pylon-to-Wing Access Panels and Doors
TASK 71-13-00-010-040-A
Opening of the Fan Cowl Doors
TASK 71-13-00-010-040-B
Opening of the Fan Cowl Doors
TASK 78-36-00-010-802-A
Opening of the Thrust Reverser Cowl-Doors
F Fuel Recirculation Pipe - Location and Detail ** ON A/C NOT FOR ALL
F Fuel Recirculation Pipe - Location and Detail ** ON A/C NOT FOR ALL
3. Job Set-up
Subtask 28-16-00-941-059-A
A. Safety Precautions
   (1) Put a WARNING NOTICE(S) in position to tell persons not to start the engine 1(2).
   (2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
   (3) Make sure that the ON legend on the ENG/FADEC GND PWR/1(2) pushbutton switch is off, and put a WARNING NOTICE(S) to tell persons not to use it.
   (4) Make sure that the APU BLEED pushbutton switch is released (on legend OFF) and put a WARNING NOTICE(S) to tell persons not to use it.
WARNING: OBEY THE FUEL SAFETY PROCEDURES.
   (5) Obey the fuel safety procedure (Ref. AMM TASK 28-00-00-910-001).
   (6) Obey the safety procedure of the hydraulic system (Ref. AMM TASK 29-00-00-910-002).
Subtask 28-16-00-860-052-A
B. Aircraft Maintenance Configuration
   (1) Defuel the applicable aircraft wing-tank (Ref. AMM TASK 28-25-00-650-001).
   (2) Drain the remaining fuel from the applicable fuel tank (Ref. AMM TASK 28-25-00-650-003).
   (3) Depressurize the aircraft hydraulic systems
(Ref. AMM TASK 29-10-00-864-001) (Ref. AMM TASK 29-10-00-864-002) (Ref. AMM TASK 29-10-00-864-003).
   (4) Depressurize the hydraulic reservoirs (Ref. AMM TASK 29-14-00-614-001).
Subtask 28-16-00-865-059-A
C. Open, safety and tag this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C ALL
49VUENGINE/2/HP FUEL SOV1KC2A02
49VUENGINE/1/HP FUEL SOV1KC1A01
49VUANTI ICE/PROBES/AOA/14DA1D04
49VUANTI ICE/PROBES/PHC/12DA1D03
49VUANTI ICE/PROBES/PITOT/13DA1D02
** ON A/C NOT FOR ALL
121VUHYDRAULIC/HYD POWER/Y3803GXN30
** ON A/C NOT FOR ALL
121VUHYDRAULIC/HYD POWER/Y3803GXN31
** ON A/C ALL
122VUANTI ICE/ENG/21DN2W10
122VUANTI ICE/PROBES/PHC/32DA3Y16
122VUANTI ICE/PROBES/2/TAT1DA2Y15
122VUANTI ICE/PROBES/2/PITOT3DA2Y14
122VUANTI ICE/PROBES/2/AOA4DA2Y13
122VUANTI ICE/PROBES/PHC/22DA2Y12
122VUANTI ICE/PROBES/2/STATIC5DA2Y11
122VUANTI ICE/PROBES/3/PITOT3DA3Z16
122VUANTI ICE/PROBES/3/AOA4DA3Z15
122VUANTI ICE/PROBES/1/STATIC5DA1Z13
122VUANTI ICE/PROBES/1/TAT1DA1Z12
123VUY HYD/ELEC/PUMP3802GXAB06
123VUY HYD/ELEC/ELEC PUMP/NORM3801GXAB03
Subtask 28-16-00-010-056-A ** ON A/C NOT FOR ALL
D. Get Access
   (1) Put an access platform in position:
  • For the left pylon at zone 410
  • For the right pylon at zone 420.
   (2) Open the access doors:
     (a) For the left pylon:
     (b) For the right pylon:
   (3) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-040):
     (a) FOR [1000EM1] (ENGINE-1)
     (b) FOR [1000EM2] (ENGINE-2)
Subtask 28-16-00-010-056-B ** ON A/C NOT FOR ALL
D. Get Access
   (1) Put an access platform in position:
  • For the left pylon at zone 410
  • For the right pylon at zone 420.
   (2) Open the access doors:
     (a) For the left pylon:
     (b) For the right pylon:
   (3) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-040):
     (a) FOR [1000EM1] (ENGINE-1)
     (b) FOR [1000EM2] (ENGINE-2)
Subtask 28-16-00-010-056-C ** ON A/C NOT FOR ALL
D. Get Access
   (1) Put an ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position:
  • For the left pylon at zone 410
  • For the right pylon at zone 420.
   (2) Open the access doors:
     (a) For the left pylon:
     (b) For the right pylon: 481BL, 425AR, 425AL, 461DL, 461EL and 425BL (Ref. AMM TASK 54-51-21-000-802) (Ref. AMM TASK 54-53-11-000-804).
   (3) Open the thrust reverser cowl-doors: (Ref. AMM TASK 78-36-00-010-802)
     (a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
     (b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
4. Procedure
Subtask 28-16-00-020-050-A ** ON A/C NOT FOR ALL
A. Removal of the Fuel Recirculation Pipe
F Fuel Recirculation Pipe - Location and Detail ** ON A/C NOT FOR ALL
   (1) To remove the pipe assembly (5), do the steps that follow:
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.
     (a) Remove and discard the lockwire from the bolts (39).
     (b) Remove the bolts (39), the washers (38) and the plates (36) that attach the pipe assembly (5) to the check valve (35).
     (c) Remove and discard the seal (37).
     (d) Remove the bolt (7) and the washer (6).
     (e) Remove the bolt (14) and the washer (15).
     (f) Remove the bolt (10) and the washer (9) to disconnect the bonding lead (8).
     (g) Hold and carefully disconnect the pipe assembly (5) from the pipe assembly (13).
     (h) Remove the bolts (32) and the washers (33) from the clamp (34).
     (i) Remove the pipe assembly (5) from the clamp (34).
     (j) Remove the bush (31) from the clamp (34).
     (k) Remove the nut (4), the bolt (2) and the washer (3) to disconnect the bonding lead (1) from the clamp (18).
     (l) Remove the clamp (18).
     (m) Carefully remove the pipe assembly (5).
   (2) To remove the pipe assembly (13), do the steps that follow:
     (a) Remove the bolts (12) and the washers (11).
     (b) Remove the bolt (27) and the washer (26).
     (c) Remove the bolt (21) and the washer (22).
     (d) Remove the nuts (23) and the bolts (20).
     (e) Remove the angle (19) from the cleat-half (25).
     (f) Remove the inserts (24) and the cleat-half (25).
     (g) Remove the bolts (28) and the washers (29) from the clamps (30).
     (h) Remove the locking pin (16) from the tube coupling nut (17).
     (i) Remove the tube coupling nut (17).
     (j) Remove the pipe assembly (13) from the clamps (30).
     (k) Remove the bushes (31) from the clamps (30).
     (l) Carefully remove the pipe assembly (13).
   (3) Put the PLUG-BLANKING in each disconnected line end.
Subtask 28-16-00-020-050-B ** ON A/C NOT FOR ALL
A. Removal of the pipe assembly
F Fuel Recirculation Pipe - Location and Detail ** ON A/C NOT FOR ALL
   (1) Do the steps that follow to remove the pipe assembly (1):
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.
     (a) Remove and discard the lockwire from the bolts (3) and (10).
     (b) Remove the bolts (10), the washers (9) and disconnect the bonding leads (8) from the pipe assembly (1).
     (c) Remove the bolts (3), the washers (4) and the plates (6) that attach the pipe assembly (1) to the check valve (7).
     (d) Remove and discard the seal (5).
     (e) Hold and carefully disconnect the pipe assembly (1) from the pipe assembly (2).
     (f) Carefully remove the pipe assembly (1).
   (2) Do the steps that follow to remove the pipe assembly (2):
     (a) Remove the engine fire-extinguisher bottle (Ref. AMM TASK 26-21-41-000-001).
     (b) Remove the ENG1 (ENG2) fan air valve-actuator (Ref. AMM TASK 36-11-54-000-802).
     (c) Remove the bolts (19) and (23) and the nuts (20) and (22).
     (d) Remove the bracket (21).
     (e) Remove the bolts (11) and the washers (12) from the pipe assembly (2).
     (f) Remove the bolts (13) and (14), the washers (15) and the clamps (16) from the pipe assembly (2).
     (g) Loosen the clamp (18).
     (h) Retract the shroud and carefully disconnect the pipe assembly (2) from the union (17).
     (i) Carefully remove the pipe assembly (2).
   (3) Put the PLUG-BLANKING in each disconnected line end.
[Rev.10 from 2021] 2026.04.01 00:03:17 UTC
"Aviabrain" 2025