DOC AIRBUS | AMM A320FInstallation of the Rigid Fuel Tube, Aircraft to the LP Pump [IAE]
TASK 73-11-47-400-010-A
Installation of the Rigid Fuel Tube, Aircraft to the LP Pump
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Expendable Parts
E. Referenced Information
3. Job Set-up
Subtask 73-11-47-860-050-A ** ON A/C NOT FOR ALL
Subtask 73-11-47-420-050-A ** ON A/C NOT FOR ALL
Subtask 73-11-47-410-051-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 03:00:05 UTC
Installation of the Rigid Fuel Tube, Aircraft to the LP Pump
WARNING:
BE CAREFUL WHEN YOU DO WORK ON THE ENGINE PARTS AFTER THE ENGINE SHUTDOWN. USE APPLICABLE THERMAL GLOVES. THE ENGINE PARTS CAN STAY HOT FOR ONE HOUR AFTER SHUTDOWN AND CAN BURN YOU.
WARNING:
BE CAREFUL NOT TO GET AIRCRAFT FUEL IN YOUR MOUTH OR IN YOUR EYES.
IF YOU GET FUEL ON YOUR SKIN OR ON YOUR CLOTHES, FLUSH IT IMMEDIATELY WITH WATER.
IF NECESSARY, GET MEDICAL HELP.
AIRCRAFT FUEL IS POISONOUS.
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
CAUTION:
DO NOT LET ENGINE FUEL OR OIL FALL ON THE ENGINE. UNWANTED FUEL OR OIL MUST BE REMOVED IMMEDIATELY WITH A CLEAN LINT FREE CLOTH. THE FUEL OR OIL CAN CAUSE DAMAGE TO THE SURFACE PROTECTION AND TO SOME PARTS.
CAUTION:
DO NOT PUT FUEL THAT HAS BEEN DRAINED FROM THE ENGINE BACK IN TO THE FUEL SYSTEM.
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.V02-126) | lockwire |
| (Material No.V10-038) | petroleum |
| (Material No.V10-060) | liquid paraffin |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| FOR [1000EM1] (ENGINE-1) | |
| 437AL, 438AR | |
| FOR [1000EM2] (ENGINE-2) | |
| 447AL, 448AR | |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 13 | SEAL RING | AIPC 73-12-41-80-040 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 70-23-11-911-013-A | General Torque Tightening Techniques |
| TASK 70-23-13-911-010-A | Procedures for the Installation of Preformed Packings |
| TASK 71-00-00-710-012-B | Test No.3 : Idle Leak Check |
| TASK 71-00-00-710-045-A | Test No.1 : Dry Motor Leak Check |
| TASK 71-13-00-010-010-A | Opening of the Fan Cowls 437AL(447AL),438AR(448AR) |
| TASK 71-13-00-410-010-A | Closing of the Fan Cowls 437AL(447AL),438AR(448AR) |
Rigid Fuel TubesSubtask 73-11-47-860-050-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
(1) On the center pedestal, on the ENG panel 115VU, make sure that a WARNING NOTICE(S) is in position to tell persons not to start the engine.
(2) On the overhead maintenance panel 50VU, make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off. Make sure that a WARNING NOTICE(S) is in position to tell persons not to energize the FADEC 1(2).
(3) Make sure that the ACCESS PLATFORM 1M(3 FT) is in position.
Subtask 73-11-47-010-053-A ** ON A/C NOT FOR ALL (1) On the center pedestal, on the ENG panel 115VU, make sure that a WARNING NOTICE(S) is in position to tell persons not to start the engine.
(2) On the overhead maintenance panel 50VU, make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off. Make sure that a WARNING NOTICE(S) is in position to tell persons not to energize the FADEC 1(2).
(3) Make sure that the ACCESS PLATFORM 1M(3 FT) is in position.
B. Make sure that the fan cowl doors are open: (Ref. AMM TASK 71-13-00-010-010)
(1) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR
Subtask 73-11-47-420-052-A ** ON A/C NOT FOR ALL (1) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR
C. Do these steps :
(1) Install the clips (10) to the replacement fuel tube (6).
(2) Install a new AIPC 73-12-41-80-040 SEAL RING (13) to the tube flange (Ref. AMM TASK 70-23-13-911-010).
Subtask 73-11-47-630-050-A ** ON A/C NOT FOR ALL (1) Install the clips (10) to the replacement fuel tube (6).
(2) Install a new AIPC 73-12-41-80-040 SEAL RING (13) to the tube flange (Ref. AMM TASK 70-23-13-911-010).
D. Remove the applicable covers/caps/plugs from all of the openings.
4. ProcedureSubtask 73-11-47-420-050-A ** ON A/C NOT FOR ALL
A. Installation of the rigid fuel tube, aircraft to the LP pump
(1) Install the aircraft to the LP fuel pump tube:
(a) Put the fuel tube (6) on the engine.
(b) Attach the fuel tube and the bracket to the LP fuel pump with the bolts (12).
(c) TORQUE the bolts (12) to between 110 and 90 lbf.in (1.24 and 1.02 m.daN )
(Ref. AMM TASK 70-23-11-911-013).
(2) Attach the clips:
(a) Attach the clips (10) with the bolts (9) and the washers (11).
(b) TORQUE the bolts (9) to between 44 and 36 lbf.in (0.50 and 0.41 m.daN ) (Ref. AMM TASK 70-23-11-911-013).
(3) Connect the fuel tubes (6) and (7):
(a) Lubricate the threads on the union on the mounting bracket and the fuel tube (6) with liquid paraffin (Material No.V10-060) or petroleum (Material No.V10-038) .
(b) Lubricate the threads on the union on the mounting bracket and the fuel tube (7) with liquid paraffin (Material No.V10-060) or petroleum (Material No.V10-038) .
(c) Connect the fuel tube (6) to the union on the mounting bracket.
(d) Examine the mounting bracket installation. Make sure there is no clearance between the mounting bracket and the union. Make sure that the mounting bracket is horizontal. If there is a clearance at the mounting bracket, disconnect the tubes (6) and (7) and do the steps that follow:
1 Adjust the mounting bracket (on the bolt slots) until it is horizontal.
2 Remove the nuts (5) and (8) from the unions.
3 Install the applicable washers (1), (2) and (3) between the unions and the mounting bracket. Install the nuts (5) and (8).
5 Tighten the nuts (5) and (8).
6 Connect the tubes (6) and (7) to the unions on the mounting bracket.
7 Make sure there is no clearance and that the mounting bracket is horizontal.
(e) TORQUE the bolts (2) and the nuts (4) to between 110 and 90 lbf.in (1.24 and 1.02 m.daN ) (Ref. AMM TASK 70-23-11-911-013).
(f) Do the steps that follow:
(Ref. AMM TASK 70-23-11-911-013).
2 TORQUE the nut (8) to between 280 and 240 lbf.in (3.16 and 2.71 m.daN ) (Ref. AMM TASK 70-23-11-911-013).
3 TORQUE the connector nut of the tube (6) to between 1680 and 1520 lbf.in (18.98 and 17.18 m.daN ) (Ref. AMM TASK 70-23-11-911-013).
4 TORQUE the connector nut of the tube (7) to between 510 and 470 lbf.in (5.76 and 5.31 m.daN ) (Ref. AMM TASK 70-23-11-911-013).
SBE73-0219
(4) Connect the tube assembly (16):
(a) Lubricate the threads on the tube assembly (16) and the fuel tube (6) with liquid paraffin (Material No.V10-060) or petroleum (Material No.V10-038) .
(b) Connect the tube assembly (16) to the fuel tube (6).
(c) TORQUE the nut to between 248 and 230 lbf.in (2.80 and 2.60 m.daN ).
(d) Installation of the lockwire
END OF SBE73-0219
SBE73-0224
SBE73-0235
(5) Connect the blanking plug (17).
(a) Lubricate the threads on the blanking plug (17) and the fuel tube (6) with liquid paraffin (Material No.V10-060) or petroleum (Material No.V10-038) .
(b) Connect the blanking plug (17) to the fuel tube (6).
(c) TORQUE the nut to between 248 and 230 lbf.in (2.80 and 2.60 m.daN ).
(d) Installation of the lockwire
END OF SBE73-0224
END OF SBE73-0235
5. Close-up(1) Install the aircraft to the LP fuel pump tube:
(a) Put the fuel tube (6) on the engine.
(b) Attach the fuel tube and the bracket to the LP fuel pump with the bolts (12).
(c) TORQUE the bolts (12) to between 110 and 90 lbf.in (1.24 and 1.02 m.daN )
(Ref. AMM TASK 70-23-11-911-013). (2) Attach the clips:
(a) Attach the clips (10) with the bolts (9) and the washers (11).
(b) TORQUE the bolts (9) to between 44 and 36 lbf.in (0.50 and 0.41 m.daN )
(Ref. AMM TASK 70-23-11-911-013). (3) Connect the fuel tubes (6) and (7):
(a) Lubricate the threads on the union on the mounting bracket and the fuel tube (6) with liquid paraffin (Material No.V10-060) or petroleum (Material No.V10-038) .
(b) Lubricate the threads on the union on the mounting bracket and the fuel tube (7) with liquid paraffin (Material No.V10-060) or petroleum (Material No.V10-038) .
(c) Connect the fuel tube (6) to the union on the mounting bracket.
(d) Examine the mounting bracket installation. Make sure there is no clearance between the mounting bracket and the union. Make sure that the mounting bracket is horizontal. If there is a clearance at the mounting bracket, disconnect the tubes (6) and (7) and do the steps that follow:
1 Adjust the mounting bracket (on the bolt slots) until it is horizontal.
2 Remove the nuts (5) and (8) from the unions.
3 Install the applicable washers (1), (2) and (3) between the unions and the mounting bracket. Install the nuts (5) and (8).
NOTE: The washers (1), (2) and (3) can be installed as shown or installed one on each side of the bracket as necessary.
4 Tighten the bolts (2) and the nuts (4). 5 Tighten the nuts (5) and (8).
6 Connect the tubes (6) and (7) to the unions on the mounting bracket.
7 Make sure there is no clearance and that the mounting bracket is horizontal.
(e) TORQUE the bolts (2) and the nuts (4) to between 110 and 90 lbf.in (1.24 and 1.02 m.daN )
(Ref. AMM TASK 70-23-11-911-013). (f) Do the steps that follow:
CAUTION:
HOLD THE UNIONS DURING THE TORQUE PROCEDURE TO PREVENT DAMAGE TO THE FLEXIBLE HOSES.
1 TORQUE the nut (5) to between 1120 and 960 lbf.in (12.66 and 10.85 m.daN ) (Ref. AMM TASK 70-23-11-911-013). 2 TORQUE the nut (8) to between 280 and 240 lbf.in (3.16 and 2.71 m.daN )
(Ref. AMM TASK 70-23-11-911-013). 3 TORQUE the connector nut of the tube (6) to between 1680 and 1520 lbf.in (18.98 and 17.18 m.daN )
(Ref. AMM TASK 70-23-11-911-013). 4 TORQUE the connector nut of the tube (7) to between 510 and 470 lbf.in (5.76 and 5.31 m.daN )
(Ref. AMM TASK 70-23-11-911-013). SBE73-0219
(4) Connect the tube assembly (16):
(a) Lubricate the threads on the tube assembly (16) and the fuel tube (6) with liquid paraffin (Material No.V10-060) or petroleum (Material No.V10-038) .
(b) Connect the tube assembly (16) to the fuel tube (6).
(c) TORQUE the nut to between 248 and 230 lbf.in (2.80 and 2.60 m.daN )
. (d) Installation of the lockwire
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.
1 Safety the tube nut on the tube assembly (16) with lockwire (Material No.V02-126) . END OF SBE73-0219
SBE73-0224
SBE73-0235
(5) Connect the blanking plug (17).
(a) Lubricate the threads on the blanking plug (17) and the fuel tube (6) with liquid paraffin (Material No.V10-060) or petroleum (Material No.V10-038) .
(b) Connect the blanking plug (17) to the fuel tube (6).
(c) TORQUE the nut to between 248 and 230 lbf.in (2.80 and 2.60 m.daN )
. (d) Installation of the lockwire
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.
1 Safety the tube nut on the tube assembly (16) with lockwire (Material No.V02-126) . END OF SBE73-0224
END OF SBE73-0235
Subtask 73-11-47-410-051-A ** ON A/C NOT FOR ALL
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the fan cowls (Ref. AMM TASK 71-13-00-410-010).
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(3) Remove the access platform(s).
(4) Remove the WARNING NOTICE(S).
Subtask 73-11-47-790-050-B ** ON A/C NOT FOR ALL (1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the fan cowls (Ref. AMM TASK 71-13-00-410-010).
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(3) Remove the access platform(s).
(4) Remove the WARNING NOTICE(S).
B. Test requirements
(1) Do an Idle Leak Check (Ref. AMM TASK 71-00-00-710-012).
(1) Do an Idle Leak Check (Ref. AMM TASK 71-00-00-710-012).
NOTE: A dry motor leak check (Ref. AMM TASK 71-00-00-710-045) may be used to check for leaks, but this must be followed by an idle leak check (Ref. AMM TASK 71-00-00-710-012)