DOC AIRBUS | AMM A320FInstallation of the Fuel Drain Valve
TASK 28-12-44-400-006-A
Installation of the Fuel Drain Valve
Self explanatory
2. Job Set-up Information
A. Work Zones and Access Panels
B. Referenced Information
3. Job Set-up
Subtask 28-12-44-941-072-A ** ON A/C NOT FOR ALL
Subtask 28-12-44-420-058-A ** ON A/C NOT FOR ALL
Subtask 28-12-44-410-057-C ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.02 06:17:11 UTC
Installation of the Fuel Drain Valve
WARNING:
OBEY THE FUEL SAFETY PROCEDURES.
WARNING:
BEFORE YOU DO WORK IN OR NEAR A FUEL TANK, MAKE SURE THAT YOU OBEY ALL THE SAFETY PROCEDURES. THIS WILL PREVENT INJURY TO PERSONS AND/OR DAMAGE TO THE AIRCRAFT.
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:
DO NOT GET YOUR CLOTHES SOAKED WITH FUEL.
WARNING:
MAKE SURE THAT YOU HAVE THE CORRECT FIRE FIGHTING EQUIPMENT AVAILABLE.
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Work Zones and Access Panels
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 130 | FWD CARGO COMPT AFT BULKHEAD OF AVNCS COMPT TO FWD PRESSURE BULKHEAD OF WING CENTER BOX |
| 150 | AFT CARGO COMPARTMENT FWD PRESS BULKHEAD TO AFT BULKHEAD OF AFT CARGO COMPARTMENT |
| 160 | BULK CARGO COMPARTMENT AFT BULKHEAD OF AFT CARGO COMPARTMENT TO AFT BULKHEAD OF BULK CARGO COMPARTMENT |
| 826 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 12-11-28-650-003-A | Pressure Refuel with Automatic Control |
| 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 28-00-00-910-001-A | Fuel Safety Procedures |
| TASK 28-10-00-910-001-A | Safety Procedures When You Do Work in a Fuel Tank |
| 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 28-25-00-869-001-A | Fuel Transfer |
| TASK 52-30-00-860-001-A | Open the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump |
| TASK 52-30-00-860-002-A | Close the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump |
| FOR [227QM1] (VALVE-FUEL DRAIN, ACT1) | |
| TASK 28-10-00-910-002-A | Access to the Fuel Tanks and the Work Areas |
| TASK 28-11-27-000-003-A | Removal of the Additional Center Tank No.2 (ACT AFT2) |
| TASK 28-11-27-400-003-A | Installation of the Additional Center Tank No.2 (ACT AFT2) |
| TASK 28-11-37-000-001-A | Removal of the Inner Manhole-Cover ACT |
| TASK 28-11-37-000-004-A | Removal of the Outer Manhole-Cover ACT |
| TASK 28-11-37-400-001-A | Installation of the Inner Manhole-Cover ACT |
| TASK 28-11-37-400-004-A | Installation of the Outer Manhole Cover ACT |
| FOR [227QM2] (VALVE-FUEL DRAIN, ACT2) | |
| TASK 28-10-00-910-002-A | Access to the Fuel Tanks and the Work Areas |
| TASK 28-11-37-000-001-A | Removal of the Inner Manhole-Cover ACT |
| TASK 28-11-37-000-004-A | Removal of the Outer Manhole-Cover ACT |
| TASK 28-11-37-400-001-A | Installation of the Inner Manhole-Cover ACT |
| TASK 28-11-37-400-004-A | Installation of the Outer Manhole Cover ACT |
| TASK 28-11-49-000-002-A | Removal of the Additional Center Tank (ACT) Integrated Impact Wall |
| TASK 28-11-49-400-002-A | Installation of the Additional Center Tank (ACT) Integrated Impact Wall |
ACT Fuel Drain-ValvesSubtask 28-12-44-941-072-A ** ON A/C NOT FOR ALL
A. Safety Precautions
(1) Obey the fuel safety procedures (Ref. AMM TASK 28-00-00-910-001).
(2) Obey the safety procedures when you do work in a fuel tank (Ref. AMM TASK 28-10-00-910-001).
(3) Make sure that the SAFETY BARRIER(S) is(are) in position.
Subtask 28-12-44-860-061-C ** ON A/C NOT FOR ALL (1) Obey the fuel safety procedures (Ref. AMM TASK 28-00-00-910-001).
(2) Obey the safety procedures when you do work in a fuel tank (Ref. AMM TASK 28-10-00-910-001).
(3) Make sure that the SAFETY BARRIER(S) is(are) in position.
B. 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 applicable fuel tank is defueled (Ref. AMM TASK 28-25-00-650-001).
(3) Make sure that the remaining fuel is drained from the applicable fuel tank (Ref. AMM TASK 28-25-00-650-003).
(4) On refuel/defuel control panels 801VU and 800VU and on fuel control panel 40VU:
(a) Make sure that WARNING NOTICE(S) are in position to tell persons not to operate the fuel system.
Subtask 28-12-44-865-055-A ** ON A/C NOT FOR ALL (1) Make sure that the aircraft electrical circuits are energized.
(Ref. AMM TASK 24-41-00-861-002).
(2) Make sure that the applicable fuel tank is defueled (Ref. AMM TASK 28-25-00-650-001).
(3) Make sure that the remaining fuel is drained from the applicable fuel tank (Ref. AMM TASK 28-25-00-650-003).
(4) On refuel/defuel control panels 801VU and 800VU and on fuel control panel 40VU:
(a) Make sure that WARNING NOTICE(S) are in position to tell persons not to operate the fuel system.
C. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
Subtask 28-12-44-010-063-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 121VU | FUEL/ACT RFL/VLV/SPLY & CTL | 43QU | J21 |
| 121VU | FUEL/ACT XFR VLV/MOT2 | 66QH | J18 |
| 121VU | FUEL/ACT XFR VLV/MOT1 | 65QH | J17 |
| 121VU | FUEL/RFL/DFL INLET VLV/AFT 1 & 2 | 53QU | J15 |
| 121VU | FUEL/INLET VLV MOT2 AUTO SP AFT 2 | 44QH2 | K16 |
| 121VU | FUEL/INLET VLV MOT2 AUTO SP AFT 1 | 44QH1 | K15 |
| 121VU | FUEL/INLET VLV/MOT1/AFT 2 | 84QH | L29 |
| 121VU | FUEL/INLET VLV/MOT1/MAN SPLY/AFT 1 | 46QH | L28 |
| 121VU | FUEL/RFL/DFL CTL/AFT 1 & 2 | 49QU | L26 |
| 121VU | FUEL/ACT/FUEL PUMP/SPLY | 25QH | Q29 |
D. Get Access
(1) Make sure that the ACCESS PLATFORM 2M (6 FT) is below aft cargo-compartment door 826.
(2) Make sure that aft cargo-compartment door 826 is open (Ref. AMM TASK 52-30-00-860-001).
(3) Make sure that CARGO COMPT LIGHT switch 8LU is set to ON position.
(4) FOR [227QM1] (VALVE-FUEL DRAIN, ACT1)
(a) Make sure that Additional Center Tank (ACT) AFT2 is removed (Ref. AMM TASK 28-11-27-000-003).
(b) Make sure that the manhole cover is removed from the rear wall of ACT AFT1 (Ref. AMM TASK 28-11-37-000-004), (Ref. AMM TASK 28-11-37-000-001) and (Ref. AMM TASK 28-10-00-910-002).
(5) FOR [227QM2] (VALVE-FUEL DRAIN, ACT2)
(a) Make sure that the integrated impact wall is removed from ACT AFT2 (Ref. AMM TASK 28-11-49-000-002).
(b) Make sure that the manhole cover is removed from the rear wall of ACT AFT2 (Ref. AMM TASK 28-11-37-000-004), (Ref. AMM TASK 28-11-37-000-001) and (Ref. AMM TASK 28-10-00-910-002).
4. Procedure(1) Make sure that the ACCESS PLATFORM 2M (6 FT) is below aft cargo-compartment door 826.
(2) Make sure that aft cargo-compartment door 826 is open (Ref. AMM TASK 52-30-00-860-001).
(3) Make sure that CARGO COMPT LIGHT switch 8LU is set to ON position.
(4) FOR [227QM1] (VALVE-FUEL DRAIN, ACT1)
(a) Make sure that Additional Center Tank (ACT) AFT2 is removed (Ref. AMM TASK 28-11-27-000-003).
(b) Make sure that the manhole cover is removed from the rear wall of ACT AFT1 (Ref. AMM TASK 28-11-37-000-004), (Ref. AMM TASK 28-11-37-000-001) and (Ref. AMM TASK 28-10-00-910-002).
(5) FOR [227QM2] (VALVE-FUEL DRAIN, ACT2)
(a) Make sure that the integrated impact wall is removed from ACT AFT2 (Ref. AMM TASK 28-11-49-000-002).
(b) Make sure that the manhole cover is removed from the rear wall of ACT AFT2 (Ref. AMM TASK 28-11-37-000-004), (Ref. AMM TASK 28-11-37-000-001) and (Ref. AMM TASK 28-10-00-910-002).
Subtask 28-12-44-420-058-A ** ON A/C NOT FOR ALL
A. Preparation for Installation
(1) Clean the component interfaces and the adjacent area.
(2) Make sure that the parts retained from the removed component are clean and in the correct condition.
(3) Do an inspection of the component interfaces and the adjacent area.
Subtask 28-12-44-420-059-A ** ON A/C NOT FOR ALL (1) Clean the component interfaces and the adjacent area.
(2) Make sure that the parts retained from the removed component are clean and in the correct condition.
(3) Do an inspection of the component interfaces and the adjacent area.
B. Installation of the Check Valves 227QM*
(1) Hold the clamp (2) on the end of the pipe (1) and install the check valve (3).
(2) Move the clamp (2) to its installation position and tighten it.
5. Close-up(1) Hold the clamp (2) on the end of the pipe (1) and install the check valve (3).
(2) Move the clamp (2) to its installation position and tighten it.
Subtask 28-12-44-410-057-C ** ON A/C NOT FOR ALL
A. Close Access
(1) FOR [227QM1] (VALVE-FUEL DRAIN, ACT1)
(a) Install the manhole cover on the rear wall of the ACT AFT1 (Ref. AMM TASK 28-11-37-400-001) and (Ref. AMM TASK 28-11-37-400-004).
(b) Install the ACT AFT2 (Ref. AMM TASK 28-11-27-400-003).
(2) FOR [227QM2] (VALVE-FUEL DRAIN, ACT2)
(a) Install the manhole cover on the rear wall of the ACT AFT2 (Ref. AMM TASK 28-11-37-400-001) and (Ref. AMM TASK 28-11-37-400-004).
(b) Install the integrated impact wall on the ACT AFT2 (Ref. AMM TASK 28-11-49-400-002).
(3) Set CARGO COMPT LIGHT switch 8LU to the OFF position.
(4) Close aft cargo compartment door 826 (Ref. AMM TASK 52-30-00-860-002).
(5) Remove the access platform(s).
(6) From refuel/defuel control panels 801VU and 800VU and from fuel control panel 40VU:
(a) Remove the WARNING NOTICE(S).
Subtask 28-12-44-865-056-A ** ON A/C NOT FOR ALL (1) FOR [227QM1] (VALVE-FUEL DRAIN, ACT1)
(a) Install the manhole cover on the rear wall of the ACT AFT1 (Ref. AMM TASK 28-11-37-400-001) and (Ref. AMM TASK 28-11-37-400-004).
(b) Install the ACT AFT2 (Ref. AMM TASK 28-11-27-400-003).
(2) FOR [227QM2] (VALVE-FUEL DRAIN, ACT2)
(a) Install the manhole cover on the rear wall of the ACT AFT2 (Ref. AMM TASK 28-11-37-400-001) and (Ref. AMM TASK 28-11-37-400-004).
(b) Install the integrated impact wall on the ACT AFT2 (Ref. AMM TASK 28-11-49-400-002).
(3) Set CARGO COMPT LIGHT switch 8LU to the OFF position.
(4) Close aft cargo compartment door 826 (Ref. AMM TASK 52-30-00-860-002).
(5) Remove the access platform(s).
(6) From refuel/defuel control panels 801VU and 800VU and from fuel control panel 40VU:
(a) Remove the WARNING NOTICE(S).
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 28-12-44-650-065-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 121VU | FUEL/ACT RFL/VLV/SPLY & CTL | 43QU | J21 |
| 121VU | FUEL/ACT XFR VLV/MOT2 | 66QH | J18 |
| 121VU | FUEL/ACT XFR VLV/MOT1 | 65QH | J17 |
| 121VU | FUEL/RFL/DFL INLET VLV/AFT 1 & 2 | 53QU | J15 |
| 121VU | FUEL/INLET VLV MOT2 AUTO SP AFT 2 | 44QH2 | K16 |
| 121VU | FUEL/INLET VLV MOT2 AUTO SP AFT 1 | 44QH1 | K15 |
| 121VU | FUEL/INLET VLV/MOT1/AFT 2 | 84QH | L29 |
| 121VU | FUEL/INLET VLV/MOT1/MAN SPLY/AFT 1 | 46QH | L28 |
| 121VU | FUEL/RFL/DFL CTL/AFT 1 & 2 | 49QU | L26 |
| 121VU | FUEL/ACT/FUEL PUMP/SPLY | 25QH | Q29 |
C. Fuel Configuration
(1) Refuel/defuel or transfer fuel as necessary (Ref. AMM TASK 12-11-28-650-003), (Ref. AMM TASK 28-25-00-650-001) or (Ref. AMM TASK 28-25-00-869-001).
Subtask 28-12-44-942-059-A ** ON A/C NOT FOR ALL (1) Refuel/defuel or transfer fuel as necessary (Ref. AMM TASK 12-11-28-650-003), (Ref. AMM TASK 28-25-00-650-001) or (Ref. AMM TASK 28-25-00-869-001).
D. Removal of Equipment
(1) Remove the SAFETY BARRIERS.
(2) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
Subtask 28-12-44-860-063-A ** ON A/C NOT FOR ALL (1) Remove the SAFETY BARRIERS.
(2) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
E. Put the aircraft back to its initial configuration.
(1) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
(1) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).