DOC AIRBUS | AMM A320FInstallation of the Drain Tubes [IAE]
TASK 71-71-43-400-010-A
Installation of the Drain Tubes
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Referenced Information
3. Job Set-up
Subtask 71-71-43-941-053-A ** ON A/C NOT FOR ALL
Subtask 71-71-43-420-052-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 02:31:01 UTC
Installation of the Drain Tubes
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
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.V02-099) | lint free cloth |
| (Material No.V02-156) | lockwire |
| (Material No.V05-016) | garnet paper |
| (Material No.V05-017) | garnet paper |
| (Material No.V08-013) | cold curing silicone |
| (Material No.V08-014) | primer |
| (Material No.V08-032) | primer |
| (Material No.V08-074) | sealant |
| (Material No.V10-039) | engine oil |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| FOR [1000EM1] (ENGINE-1) | |
| 437AL, 438AR | |
| FOR [1000EM2] (ENGINE-2) | |
| 447AL, 448AR | |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 71-13-00-010-010-A | Opening of the Fan Cowls 437AL(447AL),438AR(448AR) |
Fuel Diverter Unit Drain TubesSubtask 71-71-43-941-053-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 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 is in position to tell persons not to energize the FADEC 1(2).
Subtask 71-71-43-010-055-A ** ON A/C NOT FOR ALL (1) On the center pedestal, on the Eng panel 115VU, make sure that a warning notice 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 is in position to tell persons not to energize the FADEC 1(2).
B. Get Access
(1) Open the fan cowls (Ref. AMM TASK 71-13-00-010-010):
(2) FOR [1000EM1] (ENGINE-1)
437AL 438AR.
(3) FOR [1000EM2] (ENGINE-2)
447AL 448AR.
Subtask 71-71-43-020-053-A ** ON A/C NOT FOR ALL (1) Open the fan cowls (Ref. AMM TASK 71-13-00-010-010):
(2) FOR [1000EM1] (ENGINE-1)
437AL 438AR.
(3) FOR [1000EM2] (ENGINE-2)
447AL 448AR.
C. Remove the appropriate covers/caps/plugs from the openings.
4. ProcedureSubtask 71-71-43-420-052-A ** ON A/C NOT FOR ALL
A. Install the fuel diverter drain tubes.
(2) Connect drain tubes (1, 2 and 3).
(3) Remove hardware and clip. Fit the P-clip to the oil tube and attach to the raceway, the EEC harness and the drain tube using existing hardware.
(4) Connect the drain tube (3) to the drain mast collector plate.
(5) Attach the drain tubes with clamps, bolts, washers, nuts and spacers. If necessary, replace the bolt and spacer with a longer bolt and spacer.
(6) TORQUE the nuts on the drain tubes (1, 2, 3) and the drain mast tube B-nut tube to between 115 and 105 lbf.in (1.30 and 1.19 m.daN )
.
Subtask 71-71-43-420-053-A ** ON A/C NOT FOR ALL NOTE: Unless otherwise instructed, do not tighten to torque tube nuts or attaching hardware until all the tubes and attaching hardware are installed in the correct position.
(1) Attach the drain tubes (1, 2 and 3) to the unions on the fuel diverter unit, FCOC tube, low oil pressure switch tube and to the engine bracket. (2) Connect drain tubes (1, 2 and 3).
(3) Remove hardware and clip. Fit the P-clip to the oil tube and attach to the raceway, the EEC harness and the drain tube using existing hardware.
(4) Connect the drain tube (3) to the drain mast collector plate.
(5) Attach the drain tubes with clamps, bolts, washers, nuts and spacers. If necessary, replace the bolt and spacer with a longer bolt and spacer.
(6) TORQUE the nuts on the drain tubes (1, 2, 3) and the drain mast tube B-nut tube to between 115 and 105 lbf.in (1.30 and 1.19 m.daN )
. B. Install fuel metering unit drain tube (4).
(1) Connect the drain tube (4) to the fuel metering unit and the drain mast collector plate tube.
(2) Attach the drain tube (4) to the fuel servo tube rail assembly, existing harness clamp and wire harness clamp with a clamp, existing hardware and lockwire (Material No.V02-156) .
(3) Attach the drain tube (4) with clamps, bolts, washers, nuts, spacers and existing hardware.
(4) TORQUE the nuts on the drain tube (4) and the drain mast tube B-nut to between 115 and 105 lbf.in (1.30 and 1.19 m.daN ).
Subtask 71-71-43-420-054-A ** ON A/C NOT FOR ALL (1) Connect the drain tube (4) to the fuel metering unit and the drain mast collector plate tube.
(2) Attach the drain tube (4) to the fuel servo tube rail assembly, existing harness clamp and wire harness clamp with a clamp, existing hardware and lockwire (Material No.V02-156) .
(3) Attach the drain tube (4) with clamps, bolts, washers, nuts, spacers and existing hardware.
(4) TORQUE the nuts on the drain tube (4) and the drain mast tube B-nut to between 115 and 105 lbf.in (1.30 and 1.19 m.daN )
. C. Install the fuel pump drain tube (5).
(1) Install the packing and the union to the fuel pump drain port in the gearbox. TORQUE the union to between 165 and 155 lbf.in (1.86 and 1.75 m.daN ).
(2) Connect the drain tube to the fuel pump union.
(3) Connect the drain tube (5) to the drain mast tube. TORQUE the B-nut on the drain mast tube to between 115 and 105 lbf.in (1.30 and 1.19 m.daN ).
Subtask 71-71-43-420-055-A ** ON A/C NOT FOR ALL (1) Install the packing and the union to the fuel pump drain port in the gearbox. TORQUE the union to between 165 and 155 lbf.in (1.86 and 1.75 m.daN )
. (2) Connect the drain tube to the fuel pump union.
(3) Connect the drain tube (5) to the drain mast tube. TORQUE the B-nut on the drain mast tube to between 115 and 105 lbf.in (1.30 and 1.19 m.daN )
. D. Install the oil tank scupper drain tube (6).
(1) Lubricate the seal with engine oil (Material No.V10-039) . Install the seal and the union in the oil tank scupper. TORQUE the union to between 250 and 230 lbf.in (2.83 and 2.60 m.daN ).
(2) Connect the drain tube to the oil tank scupper union.
(3) Connect the drain tube to the drain mast tube with a clamp and bolt. TORQUE the nut on the drain tube and the drain mast tube B-nut to between 180 and 160 lbf.in (2.03 and 1.81 m.daN ).
(4) Install the drain tube to the appropriate locations with clamps, bolts and initial hardware.
Subtask 71-71-43-420-056-A ** ON A/C NOT FOR ALL (1) Lubricate the seal with engine oil (Material No.V10-039) . Install the seal and the union in the oil tank scupper. TORQUE the union to between 250 and 230 lbf.in (2.83 and 2.60 m.daN )
. (2) Connect the drain tube to the oil tank scupper union.
(3) Connect the drain tube to the drain mast tube with a clamp and bolt. TORQUE the nut on the drain tube and the drain mast tube B-nut to between 180 and 160 lbf.in (2.03 and 1.81 m.daN )
. (4) Install the drain tube to the appropriate locations with clamps, bolts and initial hardware.
E. Install the hydraulic pump drain tube (7).
(1) Lubricate the packing with system hydraulic fluid.
(2) Install the packing and the hydraulic pump union on the gearbox to the hydraulic pump drain port. TORQUE the union to between 165 and 155 lbf.in (1.86 and 1.75 m.daN ).
(3) Connect the drain tube to the hydraulic pump union.
(4) Connect the drain tube (7) to the drain mast tube with a clamp, bolt, washer and a nut. TORQUE the nuts on the drain tube and the drain mast tube B-nuts to between 115 and 105 lbf.in (1.30 and 1.19 m.daN ).
(5) Attach the drain tube (7) to the oil tank scupper drain tube and the fire detector with existing hardware.
Subtask 71-71-43-420-057-A ** ON A/C NOT FOR ALL (1) Lubricate the packing with system hydraulic fluid.
(2) Install the packing and the hydraulic pump union on the gearbox to the hydraulic pump drain port. TORQUE the union to between 165 and 155 lbf.in (1.86 and 1.75 m.daN )
. (3) Connect the drain tube to the hydraulic pump union.
(4) Connect the drain tube (7) to the drain mast tube with a clamp, bolt, washer and a nut. TORQUE the nuts on the drain tube and the drain mast tube B-nuts to between 115 and 105 lbf.in (1.30 and 1.19 m.daN )
. (5) Attach the drain tube (7) to the oil tank scupper drain tube and the fire detector with existing hardware.
F. Install the ACOC actuator, IDG, and the air starter drain tubes (8, 9, 10, 11).
.
(2) Install the drain tube (11) on the IDG coupling. Paint a Torque stripe on the connection.
(3) Install the drain tubes (8, 9) in their appropriate locations with clamps, bolts, washers, nuts and spacers. Safety the connection with lockwire (Material No.V02-156) .
(4) Install the packing and the union in the air starter. TORQUE the union to between 165 and 155 lbf.in (1.86 and 1.75 m.daN ). Safety the connection with lockwire (Material No.V02-156) .
(5) Install the drain tube (11) on the air starter union.
(6) Instal the drain tubes (8, 9, 10, 11) to their appropriate locations in the drain mast tubes with clamps, bolts, washers and nuts. TORQUE the nuts on the drain tubes and drain mast tube B-nuts (8, 9, 10) to between 115 and 105 lbf.in (1.30 and 1.19 m.daN ), drain tube (11) to between 160 and 140 lbf.in (1.81 and 1.58 m.daN ) .
Subtask 71-71-43-420-058-A ** ON A/C NOT FOR ALL WARNING:
INSTALL THE SEAL, COUPLING AND DRAIN TUBE IN THIS PROCEDURE BEFORE YOU INSTALL THE IDG.
(1) Lubricate the seal with engine oil (Material No.V10-039) . Install the seal and coupling in the IDG. The drain pad is in the gearbox. TORQUE the coupling to between 165 and 155 lbf.in (1.86 and 1.75 m.daN ) . (2) Install the drain tube (11) on the IDG coupling. Paint a Torque stripe on the connection.
(3) Install the drain tubes (8, 9) in their appropriate locations with clamps, bolts, washers, nuts and spacers. Safety the connection with lockwire (Material No.V02-156) .
(4) Install the packing and the union in the air starter. TORQUE the union to between 165 and 155 lbf.in (1.86 and 1.75 m.daN )
. Safety the connection with lockwire (Material No.V02-156) . (5) Install the drain tube (11) on the air starter union.
(6) Instal the drain tubes (8, 9, 10, 11) to their appropriate locations in the drain mast tubes with clamps, bolts, washers and nuts. TORQUE the nuts on the drain tubes and drain mast tube B-nuts (8, 9, 10) to between 115 and 105 lbf.in (1.30 and 1.19 m.daN )
, drain tube (11) to between 160 and 140 lbf.in (1.81 and 1.58 m.daN ) . G. Install the bifurcation panel drain tubes (12 and 13)
(1) Attach the drain tubes (12, 13) to their appropriate connections.
on the bifucation panel tube fitting.
(3) Attach the drain tube (1) to the tube (2) with a clamp, bolts, washers and nuts.
(4) Attach the drain tube to the fuel feed tube with a clamp, bolt, washer, spacer and a nut.
(5) Attach the drain mast B-nut to the drain tube with a bolt, washer and nut. TORQUE the nuts on the drain mast tube that connects to the drain tube to between 115 and 105 lbf.in (1.30 and 1.19 m.daN ).
Subtask 71-71-43-420-059-A ** ON A/C NOT FOR ALL (1) Attach the drain tubes (12, 13) to their appropriate connections.
NOTE: Make sure all tubes are free of preload and are far enough away from adjacent components and structure.
(2) Attach bolts, washers and nuts. TORQUE the nuts to between 110 and 90 lbf.in (1.24 and 1.02 m.daN ) on the bifucation panel tube fitting. (3) Attach the drain tube (1) to the tube (2) with a clamp, bolts, washers and nuts.
(4) Attach the drain tube to the fuel feed tube with a clamp, bolt, washer, spacer and a nut.
(5) Attach the drain mast B-nut to the drain tube with a bolt, washer and nut. TORQUE the nuts on the drain mast tube that connects to the drain tube to between 115 and 105 lbf.in (1.30 and 1.19 m.daN )
. H. Seal the Tube Connections at the Bifurcation Panel
SBN 72-0193: Core to fancase interface sealing of the bifurcation panel.
(1) Clean the surface of the joints at the bifurcation panel, number 6 strut and the tube joint connections.
(2) Refer to SPPM 70-11-26-300-503 for the procedure to locally swab clean.
(3) Hand clean the specified surfaces with garnet paper (Material No.V05-016) or garnet paper (Material No.V05-017) .
(4) Locally swab clean the areas again, refer to SPPM 70-11-26-300-503.
(5) Use dry compressed air or lint free cloth (Material No.V02-099) to dry the cleaned areas.
(a) For primer (Material No.V08-014) , air-dry for 30 minutes.
(b) For primer (Material No.V08-032) , air-dry for 60 to 90 minutes.
(8) Apply the sealant:
(a) Use a spatula to apply the cold curing silicone (Material No.V08-013) compound or sealant (Material No.V08-074) .
(b) Press the sealant into the joint clearances at the specified locations.
(a) For cold curing silicone (Material No.V08-013) , cold-cure at 68 deg.F (20.00 deg.C) for 48 hours.
SBN 72-0193: Core to fancase interface sealing of the bifurcation panel.
(1) Clean the surface of the joints at the bifurcation panel, number 6 strut and the tube joint connections.
(2) Refer to SPPM 70-11-26-300-503 for the procedure to locally swab clean.
(3) Hand clean the specified surfaces with garnet paper (Material No.V05-016) or garnet paper (Material No.V05-017) .
(4) Locally swab clean the areas again, refer to SPPM 70-11-26-300-503.
(5) Use dry compressed air or lint free cloth (Material No.V02-099) to dry the cleaned areas.
NOTE: Make sure that there are no remaining cleaners in clearances between the bifurcation panel and the fuel tube connectors. The surfaces to be filled must be dry and free from grease, oil and dust.
(6) Use a soft brush and apply a thin layer of primer to the cleaned areas. You must apply the primer immediately after the surface has been cleaned. You must use the correct sealant with each primer. NOTE: For cold curing silicone (Material No.V08-013) compound, use primer (Material No.V08-014) . For sealant (Material No.V08-074) , use primer (Material No.V08-032) .
(7) Dry the primer: (a) For primer (Material No.V08-014) , air-dry for 30 minutes.
(b) For primer (Material No.V08-032) , air-dry for 60 to 90 minutes.
(8) Apply the sealant:
(a) Use a spatula to apply the cold curing silicone (Material No.V08-013) compound or sealant (Material No.V08-074) .
(b) Press the sealant into the joint clearances at the specified locations.
NOTE: You must apply the sealant in a thin layer, less than 0.120 in. (3.05 mm) diameter.
(9) Cure the sealant: (a) For cold curing silicone (Material No.V08-013) , cold-cure at 68 deg.F (20.00 deg.C) for 48 hours.
NOTE: The surface of the compound can be touched after 12 hours. Do not apply a load during this time.
(b) For sealant (Material No.V08-074) , cure at 77 deg.F (25.00 deg.C) for 24 hours. NOTE: The surface of the sealant can be touched after 1 or 2 hours. Do not apply a load during this time.