DOC AIRBUS | AMM A320FInstallation of the Nozzle Assembly
TASK 38-12-41-400-006-A-01
Installation of the Nozzle Assembly
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Referenced Information
3. Job Set-up
Subtask 38-12-41-860-070-A
Subtask 38-12-41-860-071-A
Subtask 38-12-41-410-065-A
[Rev.10 from 2021]
2026.04.02 06:25:40 UTC
Installation of the Nozzle Assembly
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
1. Reason for the JobNOTE: This is an alternative task to remove the nozzle assembly with a different tool.
2. Job Set-up InformationA. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 2 | CONTAINER 10 L(2 1/2 USGAL) |
| No specific | AR | WARNING NOTICE(S) |
| 90104701 | 1 | KEY |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.11AKG9) | Disinfectant-Potable Water System - Legacy |
| No specific | 10% citric acid solution |
| No specific | vinegar (10% acetic acid solution) |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 12-15-38-613-001-A | Fill the Potable Water Tank System (Aircraft Electrical Power Available) |
| TASK 12-15-38-613-002-A | Fill the Potable Water Tank System (Aircraft Electrical Power not Available) |
| TASK 24-42-00-861-001-A | Energize the Ground Service Network from the External Power |
| TASK 24-42-00-862-001-A | De-energize the Ground Service Network Supplied from the External Power |
| TASK 38-10-00-614-001-A | Pressurization of the Potable Water System from a Ground Air Supply |
| TASK 38-10-00-614-002-A | Depressurization of the Potable Water System |
| TASK 38-10-00-614-003-A | Pressurization of the Potable Water System with the Compressor |
Nozzle AssemblySubtask 38-12-41-860-070-A
A. Aircraft Maintenance Configuration
(1) Make sure that the ground service network is energized
(Ref. AMM TASK 24-42-00-861-001).
(2) Make sure that you installed the hoses on drain masts 4DU and 14DU.
(3) Make sure that the CONTAINER 10 L(2 1/2 USGAL) is in position below drain masts 4DU and 14DU.
(4) Make sure that the ends of the hoses are in the CONTAINER 10 L(2 1/2 USGAL) below drain masts 4DU and 14DU.
(5) Make sure that the potable-water shutoff valve in the lavatory is in the CLOSED position.
(6) Make sure that the WARNING NOTICE(S) is (are) in position to tell persons not to use the toilet(s) or open the potable-water shutoff valve(s).
Subtask 38-12-41-865-083-A (1) Make sure that the ground service network is energized
(Ref. AMM TASK 24-42-00-861-001).
(2) Make sure that you installed the hoses on drain masts 4DU and 14DU.
(3) Make sure that the CONTAINER 10 L(2 1/2 USGAL) is in position below drain masts 4DU and 14DU.
(4) Make sure that the ends of the hoses are in the CONTAINER 10 L(2 1/2 USGAL) below drain masts 4DU and 14DU.
(5) Make sure that the potable-water shutoff valve in the lavatory is in the CLOSED position.
(6) Make sure that the WARNING NOTICE(S) is (are) in position to tell persons not to use the toilet(s) or open the potable-water shutoff valve(s).
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-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-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-M | 34MG | A04 |
Subtask 38-12-41-860-071-A
A. Preparation before Installation
(3) Dry the nozzle assemblies and clean them in alcohol (minimum 70%):
(a) Make sure that the alcohol reacts with the surfaces for a minimum of 5 minutes.
(b) Let the compound dry.
(c) As an alternative, use disinfectants ELSIL 3% H2O2 (966300), HERLISIL (966500), H Bio T50 (966400) or SANOSIL (966200):
1 Make sure that the concentration of H2O2 in these disinfectants is decreased to 3%.
2 Spray the disinfectant from a maximum distance of approximately 10 cm.
3 Make sure that the disinfectant reacts with the surfaces for a minimum of 5 minutes.
4 Install the components while they are wet with the disinfectant.
Subtask 38-12-41-420-062-A ** ON A/C NOT FOR ALL WARNING:
MAKE SURE THAT THE EQUIPMENT YOU USE FOR THIS PROCEDURE IS CLEAN AND APPROVED FOR THE POTABLE WATER SYSTEM. IF NOT IT CAN CAUSE CONTAMINATION OF THE POTABLE WATER SYSTEM.
(1) Put the nozzle assemblies in vinegar (10% acetic acid solution) or 10% citric acid solution to remove the unwanted material. NOTE: Airbus recommends that you use a non-metallic stiff-bristled brush to remove the material if necessary.
(2) Clean the nozzle assemblies with clean water. (3) Dry the nozzle assemblies and clean them in alcohol (minimum 70%):
(a) Make sure that the alcohol reacts with the surfaces for a minimum of 5 minutes.
(b) Let the compound dry.
(c) As an alternative, use disinfectants ELSIL 3% H2O2 (966300), HERLISIL (966500), H Bio T50 (966400) or SANOSIL (966200):
1 Make sure that the concentration of H2O2 in these disinfectants is decreased to 3%.
2 Spray the disinfectant from a maximum distance of approximately 10 cm.
3 Make sure that the disinfectant reacts with the surfaces for a minimum of 5 minutes.
4 Install the components while they are wet with the disinfectant.
B. Installation of the Nozzle Assembly
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Install the washer (2) onto the nozzle (3).
(4) Use Disinfectant-Potable Water System - Legacy (Material No.11AKG9) to clean the 90104701 KEY (4) and the water faucet outlet (1):
(a) Spray the disinfectant from a maximum distance of approximately 10 cm.
(b) Make sure that the disinfectant reacts with the surfaces for a minimum of 5 minutes.
(c) Install the components while they are wet with the disinfectant.
(5) Use the 90104701 KEY (4) to install the nozzle assembly (5) in the water faucet outlet (1).
Subtask 38-12-41-865-084-A NOTE: The procedure for the installation of the nozzle assembly is the same for all the lavatories.
(1) Clean the component interfaces and the adjacent area.(2) Do an inspection of the component interfaces and the adjacent area.
(3) Install the washer (2) onto the nozzle (3).
(4) Use Disinfectant-Potable Water System - Legacy (Material No.11AKG9) to clean the 90104701 KEY (4) and the water faucet outlet (1):
(a) Spray the disinfectant from a maximum distance of approximately 10 cm.
(b) Make sure that the disinfectant reacts with the surfaces for a minimum of 5 minutes.
(c) Install the components while they are wet with the disinfectant.
(5) Use the 90104701 KEY (4) to install the nozzle assembly (5) in the water faucet outlet (1).
C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 38-12-41-790-057-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** 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-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-M | 34MG | A04 |
D. Leak Check
(1) If necessary, fill the potable water system (Ref. AMM TASK 12-15-38-613-001) or (Ref. AMM TASK 12-15-38-613-002).
(2) If necessary, pressurize the potable water system (Ref. AMM TASK 38-10-00-614-001) or (Ref. AMM TASK 38-10-00-614-003).
(3) In the lavatory, turn the potable-water shutoff valve to the OPEN position.
(4) In the lavatory, operate the water faucet until water flows into the washbasin.
(5) Examine the fittings and the water faucet for leaks:
(a) Make sure that there are no leaks.
(6) Do the depressurization of the potable water system (Ref. AMM TASK 38-10-00-614-002).
(7) Dry the areas of the washbasin and the water faucet with a clean cloth.
5. Close-up(1) If necessary, fill the potable water system (Ref. AMM TASK 12-15-38-613-001) or (Ref. AMM TASK 12-15-38-613-002).
(2) If necessary, pressurize the potable water system (Ref. AMM TASK 38-10-00-614-001) or (Ref. AMM TASK 38-10-00-614-003).
(3) In the lavatory, turn the potable-water shutoff valve to the OPEN position.
(4) In the lavatory, operate the water faucet until water flows into the washbasin.
(5) Examine the fittings and the water faucet for leaks:
(a) Make sure that there are no leaks.
(6) Do the depressurization of the potable water system (Ref. AMM TASK 38-10-00-614-002).
(7) Dry the areas of the washbasin and the water faucet with a clean cloth.
Subtask 38-12-41-410-065-A
A. Close Access
(1) Remove the hoses from drain masts 4DU and 14DU.
(2) Remove the CONTAINER 10 L(2 1/2 USGAL) from below drain masts 4DU and 14DU.
(3) Make sure that the work area is clean and clear of tools and other items.
(4) Remove the WARNING NOTICE(S).
Subtask 38-12-41-862-061-A (1) Remove the hoses from drain masts 4DU and 14DU.
(2) Remove the CONTAINER 10 L(2 1/2 USGAL) from below drain masts 4DU and 14DU.
(3) Make sure that the work area is clean and clear of tools and other items.
(4) Remove the WARNING NOTICE(S).