DOC AIRBUS | AMM A320FInstallation of the Waste Tank Drain Line
TASK 38-31-74-400-001-A
Installation of the Waste Tank Drain Line
Self explanatory
2. Job Set-up Information
A. Consumable Materials
B. Work Zones and Access Panels
C. Expendable Parts
D. Referenced Information
3. Job Set-up
Subtask 38-31-74-860-050-A
Subtask 38-31-74-420-050-A
Subtask 38-31-74-410-053-C
[Rev.10 from 2021]
2026.04.01 08:23:16 UTC
Installation of the Waste Tank Drain Line
WARNING:
DO NOT DO WORK ON THE TOILET WASTE SYSTEM AND THE POTABLE WATER SYSTEM AT THE SAME TIME. THIS WILL PREVENT CONTAMINATION OF THE POTABLE WATER SYSTEM. SUCH CONTAMINATION CAN BE DANGEROUS TO HEALTH.
WARNING:
ALWAYS USE RUBBER GLOVES WHEN YOU DO WORK:
- ON THE TOILET WASTE SYSTEM, OR
- ON PARTS THAT HAVE CONTAMINATION FROM THE WASTE SYSTEM.
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. Consumable Materials
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.03FAB1) | Mineral Oil base Grease-- Vaseline or Petrolatum - |
| (Material No.03PEB1) | Lubricant-Rubber seal Glycerin - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 162DW |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 4 | PACKING | AIPC 30-71-04-12-050 |
| 4 | PACKING | AIPC 30-71-84-12-070 |
| 4 | PACKING | AIPC 38-31-04-32-030 |
| 6 | PACKING | AIPC 38-31-04-32-070 |
| 4 | PACKING | AIPC 38-31-84-40-040 |
| 6 | PACKING | AIPC 38-31-84-40-110 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 12-16-38-613-001-A | Servicing of the Toilet System |
| TASK 20-28-00-912-802-A | Electrical Bonding - General Maintenance Procedure |
| TASK 20-28-00-912-803-A | Bonding Surface Preparation |
| 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 24-41-00-861-002-A-02 | Energize the Aircraft Electrical Circuits from Engine 1(2) |
| 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 24-41-00-862-002-A-02 | De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2) |
| TASK 25-55-12-400-001-A | Installation of the Aft Cargo-Compartment Partition at FR65 |
| TASK 38-31-00-680-001-A | Draining of the Toilet System |
| TASK 38-31-00-790-002-A | Leak Test of the Vacuum Toilet System (VTS) |
| TASK 52-30-00-860-002-A | Close the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump |
Waste Tank Drain LineSubtask 38-31-74-860-050-A
A. Aircraft Maintenance Configuration
(1) Make sure that the aircraft electrical circuits are energized (Ref. AMM TASK 24-41-00-861-002).
(2) Make sure that the toilet system is drained (Ref. AMM TASK 38-31-00-680-001).
Subtask 38-31-74-865-064-A (1) Make sure that the aircraft electrical circuits are energized (Ref. AMM TASK 24-41-00-861-002).
(2) Make sure that the toilet system is drained (Ref. AMM TASK 38-31-00-680-001).
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
4. Procedure| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-VACUUM-SYS | 35MG | A06 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-VACUUM-GEN | 33MG | A08 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-E | 34MG | A04 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-D | 39MG | A03 |
| ** ON A/C ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-A | 32MG | A01 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-VACU-SYS | 35MG | A06 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-VACU-GEN | 33MG | A08 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-G | 34MG | A04 |
| 2001VU | VACU TOIL SYS-LAV PWR-F | 39MG | A03 |
| 2001VU | VACU TOIL SYS-LAV PWR-D | 45MG | A02 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-L | 45MG | A02 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-L | 23MG | A05 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-M | 34MG | A04 |
Subtask 38-31-74-420-050-A
A. Installation of the Waste-Tank Drain Line
(1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Prepare the surface of the bonding point(s)
(Ref. AMM TASK 20-28-00-912-803).
(4) Remove the PLUG-BLANKING from each disconnected line end.
(5) For aircraft without freezing protection on the waste-tank drain line:
(a) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) on the packing (6).
(b) Install the AIPC 38-31-04-32-070 PACKING (6) or AIPC 38-31-84-40-110 PACKING (6) in the groove of the waste-tank drain line (5).
(c) Put the waste-tank drain line (5) in its correct installation position.
1 Put the applicable bonding strap (7) or (11) in its correct installation position.
2 Install the bolts (8), the washers (9) and the nuts (10).
3 Do not tighten the nuts (10) at this time.
(e) Do the electrical resistance measurement and the final protection of the bonding point(s)
(Ref. AMM TASK 20-28-00-912-802).
(f) Apply a thin layer of Lubricant-Rubber seal Glycerin - (Material No.03PEB1) on the packing (4).
(g) Install the new AIPC 38-31-04-32-030 PACKING (4) or AIPC 38-31-84-40-040 PACKING (4) on the waste-tank drain lines (3) and (5).
(6) For aircraft with freezing protection on the waste-tank drain line:
(a) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) on the packing (6).
(b) Install the AIPC 38-31-04-32-070 PACKING (6) or AIPC 38-31-84-40-110 PACKING (6) in the groove of the waste-tank drain line (5).
(c) Put the waste-tank drain line (5) in its correct installation position.
1 Put the applicable bonding strap (7) or (11) in its correct installation position.
2 Install the bolts (8), the washers (9) and the nuts (10).
3 Do not tighten the nuts (10) at this time.
(e) Do the electrical resistance measurement and the final protection of the bonding point(s)
(Ref. AMM TASK 20-28-00-912-802).
(f) Apply a thin layer of Lubricant-Rubber seal Glycerin - (Material No.03PEB1) on the packing (4).
(g) Install the new AIPC 30-71-04-12-050 PACKING (4) or AIPC 30-71-84-12-070 PACKING (4) on the waste-tank drain lines (3) and (5).
(7) Install the clamp (1) as follows:
(a) Put the sleeve (2) in its correct installation position.
(b) Put the clamp (1) in its correct installation position.
(c) Install the clamp (1) and lock it.
(d) Make sure that the clamp (1) is locked correctly:
Subtask 38-31-74-865-065-A (1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Prepare the surface of the bonding point(s)
(Ref. AMM TASK 20-28-00-912-803).
(4) Remove the PLUG-BLANKING from each disconnected line end.
(5) For aircraft without freezing protection on the waste-tank drain line:
(a) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) on the packing (6).
(b) Install the AIPC 38-31-04-32-070 PACKING (6) or AIPC 38-31-84-40-110 PACKING (6) in the groove of the waste-tank drain line (5).
(c) Put the waste-tank drain line (5) in its correct installation position.
CAUTION:
MAKE SURE THAT THE BONDING STRAP(S) IS(ARE) CONNECTED BEFORE YOU CONNECT THE ELECTRICAL CONNECTOR(S).
(d) Connect the applicable bonding strap (7) or (11) as follows:1 Put the applicable bonding strap (7) or (11) in its correct installation position.
2 Install the bolts (8), the washers (9) and the nuts (10).
3 Do not tighten the nuts (10) at this time.
(e) Do the electrical resistance measurement and the final protection of the bonding point(s)
(Ref. AMM TASK 20-28-00-912-802).
(f) Apply a thin layer of Lubricant-Rubber seal Glycerin - (Material No.03PEB1) on the packing (4).
(g) Install the new AIPC 38-31-04-32-030 PACKING (4) or AIPC 38-31-84-40-040 PACKING (4) on the waste-tank drain lines (3) and (5).
(6) For aircraft with freezing protection on the waste-tank drain line:
(a) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) on the packing (6).
(b) Install the AIPC 38-31-04-32-070 PACKING (6) or AIPC 38-31-84-40-110 PACKING (6) in the groove of the waste-tank drain line (5).
(c) Put the waste-tank drain line (5) in its correct installation position.
CAUTION:
MAKE SURE THAT THE BONDING STRAP(S) IS(ARE) CONNECTED BEFORE YOU CONNECT THE ELECTRICAL CONNECTOR(S).
(d) Connect the applicable bonding strap (7) or (11) as follows:1 Put the applicable bonding strap (7) or (11) in its correct installation position.
2 Install the bolts (8), the washers (9) and the nuts (10).
3 Do not tighten the nuts (10) at this time.
(e) Do the electrical resistance measurement and the final protection of the bonding point(s)
(Ref. AMM TASK 20-28-00-912-802).
(f) Apply a thin layer of Lubricant-Rubber seal Glycerin - (Material No.03PEB1) on the packing (4).
(g) Install the new AIPC 30-71-04-12-050 PACKING (4) or AIPC 30-71-84-12-070 PACKING (4) on the waste-tank drain lines (3) and (5).
(7) Install the clamp (1) as follows:
(a) Put the sleeve (2) in its correct installation position.
(b) Put the clamp (1) in its correct installation position.
(c) Install the clamp (1) and lock it.
(d) Make sure that the clamp (1) is locked correctly:
- The axial adjustment is not more than 6.35 mm (0.25 in.).
- The angular misalignment is not more than +/- 4 degrees in all directions around the centerline.
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 38-31-74-790-051-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-VACUUM-SYS | 35MG | A06 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-VACUUM-GEN | 33MG | A08 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-E | 34MG | A04 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-D | 39MG | A03 |
| ** ON A/C ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-A | 32MG | A01 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-VACU-SYS | 35MG | A06 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-VACU-GEN | 33MG | A08 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-G | 34MG | A04 |
| 2001VU | VACU TOIL SYS-LAV PWR-F | 39MG | A03 |
| 2001VU | VACU TOIL SYS-LAV PWR-D | 45MG | A02 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-L | 45MG | A02 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-L | 23MG | A05 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-M | 34MG | A04 |
C. Leak Test
(1) Do the leak test of the vacuum toilet system (Ref. AMM TASK 38-31-00-790-002).
(2) Record the result of the test.
(3) Compare the result of the test before the removal and after the installation.
Subtask 38-31-74-613-050-A 5. Close-up(1) Do the leak test of the vacuum toilet system (Ref. AMM TASK 38-31-00-790-002).
(2) Record the result of the test.
(3) Compare the result of the test before the removal and after the installation.
NOTE: The difference between the tests must not be more than 10% of the result made before the removal.
Subtask 38-31-74-410-053-C
A. Close Access
(1) Install the insulation around the waste drain valve.
(2) Make sure that the work area is clean and clear of tools and other items.
(3) Install access panel 162DW (Ref. AMM TASK 25-55-12-400-001).
(4) Remove the access platform(s).
(5) Close the aft cargo compartment door (Ref. AMM TASK 52-30-00-860-002).
Subtask 38-31-74-862-050-A (1) Install the insulation around the waste drain valve.
(2) Make sure that the work area is clean and clear of tools and other items.
(3) Install access panel 162DW (Ref. AMM TASK 25-55-12-400-001).
(4) Remove the access platform(s).
(5) Close the aft cargo compartment door (Ref. AMM TASK 52-30-00-860-002).