DOC AIRBUS | AMM A320FInstallation of the Additional Center Tank (ACT) Outer Drain-Valve
TASK 28-11-47-400-802-A
Installation of the Additional Center Tank (ACT) Outer Drain-Valve
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 28-11-47-941-051-A ** ON A/C NOT FOR ALL
Subtask 28-11-47-420-059-B ** ON A/C NOT FOR ALL
Subtask 28-11-47-410-060-B ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.02 07:03:37 UTC
Installation of the Additional Center Tank (ACT) Outer Drain-Valve
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
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. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | PLIERS - THIN NOSE |
| No specific | AR | SAFETY BARRIER(S) |
| No specific | AR | WARNING NOTICE(S) |
| No specific | Torque wrench: range to between 8.25 and 6.75 m.N (73.01 and 59.73 lbf.in )  | |
| 98D28108558000 | 1 | WRENCH - R-I DRAIN VALVE |
| 98D28108559000 | 1 | ADAPTER - TUBE, DRAIN VALVE |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.03FAB1) | Mineral Oil base Grease-- Vaseline or Petrolatum - |
| (Material No.05BAA1) | Threadlocking Adhesive-- Low strength - |
| 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 |
| 153AZ, 197AB |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 12 | PACKING | AIPC 28-11-47-10-020 |
| 7 | RETAINING RING | AIPC 28-11-82-41-060 |
| 7 | RETAINING RING | AIPC 28-11-84-03-065 |
| 7 | RETAINING RING | AIPC 28-11-84-18-060 |
| 2 | O-RING | AIPC 28-11-84-18-090 |
| 4 | O-RINGS | AIPC 28-11-84-18-100 |
| 7 | RETAINING RING | AIPC 28-11-84-36-060 |
| 7 | RETAINING RING | AIPC 28-11-84-46-090 |
| 7 | RETAINING RING | AIPC 28-11-84-66-060 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 20-28-00-912-802-A | Electrical Bonding - General Maintenance Procedure |
| TASK 28-00-00-910-001-A | Fuel Safety Procedures |
| TASK 28-25-00-650-005-A | To Drain the Remaining Fuel from the Additional Center Tank (ACT) |
| TASK 53-35-13-000-001-A | Removal of the Belly Fairing Access Panels |
| TASK 53-35-13-400-001-A | Installation of the Belly Fairing Access Panels |
Additional Center Tank (ACT) Outer Drain-ValveSubtask 28-11-47-941-051-A ** ON A/C NOT FOR ALL
A. Safety Precautions
(1) Obey the fuel safety procedures when you do work on the fuel system (Ref. AMM TASK 28-00-00-910-001).
(2) As necessary, use the applicable SAFETY BARRIERS, specified by the operator's instructions and your local regulations.
(3) On refuel/defuel control panels 801VU and 800VU, fuel control panel 40VU and on ACT control panel 28VU:
(a) Make sure that the WARNING NOTICE(S) is(are) in position to tell persons not to operate the fuel system.
Subtask 28-11-47-650-051-A ** ON A/C NOT FOR ALL (1) Obey the fuel safety procedures when you do work on the fuel system (Ref. AMM TASK 28-00-00-910-001).
(2) As necessary, use the applicable SAFETY BARRIERS, specified by the operator's instructions and your local regulations.
(3) On refuel/defuel control panels 801VU and 800VU, fuel control panel 40VU and on ACT control panel 28VU:
(a) Make sure that the WARNING NOTICE(S) is(are) in position to tell persons not to operate the fuel system.
B. Fuel Configuration
(1) Make sure that the applicable ACT(s) is(are) completely drained (Ref. AMM TASK 28-25-00-650-005).
Subtask 28-11-47-865-089-A ** ON A/C NOT FOR ALL (1) Make sure that the applicable ACT(s) is(are) completely drained (Ref. AMM TASK 28-25-00-650-005).
C. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
Subtask 28-11-47-010-063-B ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 121VU | FUEL/ACT AIR SOV/MAN/SPLY | 64QH | J20 |
| 121VU | FUEL/ACT AIR SOV/AUTO/SPLY | 63QH | J19 |
| 121VU | FUEL/ACT XFR VLV/MOT2 | 66QH | J18 |
| 121VU | FUEL/ACT XFR VLV/MOT1 | 65QH | J17 |
| 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/HI/LVL/SPLY | 1QJ | L24 |
| 121VU | FUEL/RFL/DFL/SPLY | 2QU | L23 |
| 121VU | FUEL/RFL/DFL/XFR/DEFUEL/VALVE | 1QU | L22 |
| 121VU | FUEL/ACT VENT VLV/MAN/SPLY | 62QH | L21 |
| 121VU | FUEL/ACT VENT VLV/AUTO/SPLY | 61QH | L20 |
| 121VU | FUEL/INLET VLV MAN CTL SPLY AFT 2 | 81QH | L16 |
| 121VU | FUEL/INLET VLV MAN CTL SPLY AFT 1 | 45QH | L15 |
| 121VU | FUEL/ACT/FUEL PUMP/SPLY | 25QH | Q29 |
D. Get Access
(1) Make sure that access panels 197AB and 153AZ are removed to get access to the outer drain valve of ACT AFT1 (Ref. AMM TASK 53-35-13-000-001).
(2) Make sure that the water-drain-valve service panel is removed to get access to the outer drain valve of ACT AFT2.
4. Procedure(1) Make sure that access panels 197AB and 153AZ are removed to get access to the outer drain valve of ACT AFT1 (Ref. AMM TASK 53-35-13-000-001).
(2) Make sure that the water-drain-valve service panel is removed to get access to the outer drain valve of ACT AFT2.
Subtask 28-11-47-420-059-B ** ON A/C NOT FOR ALL
A. Preparation for Installation
(1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) on the new AIPC 28-11-47-10-020 PACKING (12).
(4) Install the new AIPC 28-11-47-10-020 PACKING (12) on the outer drain valve (13).
(5) Apply a layer of Threadlocking Adhesive-- Low strength - (Material No.05BAA1) on the thread of the outer drain valve (13).
(6) For the drain tube assembly of ACT AFT1:
(a) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) on the new AIPC 28-11-84-18-090 O-RING (2) and the new AIPC 28-11-84-18-100 O-RINGS (4).
(7) For the drain tube assembly of ACT AFT2:
(a) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) on the new AIPC 28-11-84-18-090 O-RING (2) and the new AIPC 28-11-84-18-100 O-RINGS (4).
Subtask 28-11-47-420-060-A ** ON A/C NOT FOR ALL (1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) on the new AIPC 28-11-47-10-020 PACKING (12).
(4) Install the new AIPC 28-11-47-10-020 PACKING (12) on the outer drain valve (13).
(5) Apply a layer of Threadlocking Adhesive-- Low strength - (Material No.05BAA1) on the thread of the outer drain valve (13).
(6) For the drain tube assembly of ACT AFT1:
(a) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) on the new AIPC 28-11-84-18-090 O-RING (2) and the new AIPC 28-11-84-18-100 O-RINGS (4).
(7) For the drain tube assembly of ACT AFT2:
(a) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) on the new AIPC 28-11-84-18-090 O-RING (2) and the new AIPC 28-11-84-18-100 O-RINGS (4).
B. Installation of the ACT Outer Drain-Valve
(2) Put the 98D28108558000 WRENCH - R-I DRAIN VALVE in the opening of the outer drain valve (13).
(3) Put the outer drain valve (13) with the 98D28108558000 WRENCH - R-I DRAIN VALVE in the 98D28108559000 ADAPTER - TUBE, DRAIN VALVE.
(4) Turn the 98D28108558000 WRENCH - R-I DRAIN VALVE to the clockwise direction and install the outer drain valve (13).
(5) TORQUE the outer drain valve (13) to between 8.25 and 6.75 m.N (73.01 and 59.73 lbf.in ).
(6) Remove the 98D28108559000 ADAPTER - TUBE, DRAIN VALVE from the aircraft.
(7) Install the ACT water drain-tube (3):
(a) Install the new O-ring (2) and the new O-rings (4) on the ACT water drain-tube (3).
(b) Put the ACT water drain-tube (3) in the access hole of the drain port (1).
(c) Push the ACT water drain-tube (3) in position.
(d) Make sure that the ACT water drain-tube (3) is correctly attached to the drain port (1).
(f) Install the new AIPC 28-11-84-18-060 RETAINING RING (7) or AIPC 28-11-84-36-060 RETAINING RING (7) or AIPC 28-11-84-46-090 RETAINING RING (7) or AIPC 28-11-82-41-060 RETAINING RING (7) or AIPC 28-11-84-03-065 RETAINING RING (7) or AIPC 28-11-84-66-060 RETAINING RING (7) or AIPC 28-11-82-41-060 RETAINING RING (7) on the flange (6).
1 Use a PLIERS - THIN NOSE to install the new retaining ring (7).
(g) Install the spacer (9), bonding strap (8), washer (10) and the screw (11) to the aircraft structure.
(h) Do the electrical bonding procedure (Ref. AMM TASK 20-28-00-912-802).
Subtask 28-11-47-865-090-A ** ON A/C NOT FOR ALL NOTE: The subsequent procedure is the same for each ACT.
(1) Make sure that the 98D28108559000 ADAPTER - TUBE, DRAIN VALVE is connected to the drain port (1). (2) Put the 98D28108558000 WRENCH - R-I DRAIN VALVE in the opening of the outer drain valve (13).
(3) Put the outer drain valve (13) with the 98D28108558000 WRENCH - R-I DRAIN VALVE in the 98D28108559000 ADAPTER - TUBE, DRAIN VALVE.
(4) Turn the 98D28108558000 WRENCH - R-I DRAIN VALVE to the clockwise direction and install the outer drain valve (13).
(5) TORQUE the outer drain valve (13) to between 8.25 and 6.75 m.N (73.01 and 59.73 lbf.in )
. (6) Remove the 98D28108559000 ADAPTER - TUBE, DRAIN VALVE from the aircraft.
(7) Install the ACT water drain-tube (3):
(a) Install the new O-ring (2) and the new O-rings (4) on the ACT water drain-tube (3).
(b) Put the ACT water drain-tube (3) in the access hole of the drain port (1).
(c) Push the ACT water drain-tube (3) in position.
(d) Make sure that the ACT water drain-tube (3) is correctly attached to the drain port (1).
WARNING:
BE CAREFUL WHEN YOU REMOVE OR INSTALL THE SPRING. THE TENSION IN THE SPRING CAN CAUSE INJURY TO PERSONS.
(e) Put the compression spring (5) together with the flange (6) in position on the ACT water drain-tube (3). (f) Install the new AIPC 28-11-84-18-060 RETAINING RING (7) or AIPC 28-11-84-36-060 RETAINING RING (7) or AIPC 28-11-84-46-090 RETAINING RING (7) or AIPC 28-11-82-41-060 RETAINING RING (7) or AIPC 28-11-84-03-065 RETAINING RING (7) or AIPC 28-11-84-66-060 RETAINING RING (7) or AIPC 28-11-82-41-060 RETAINING RING (7) on the flange (6).
1 Use a PLIERS - THIN NOSE to install the new retaining ring (7).
(g) Install the spacer (9), bonding strap (8), washer (10) and the screw (11) to the aircraft structure.
(h) Do the electrical bonding procedure (Ref. AMM TASK 20-28-00-912-802).
C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 28-11-47-790-055-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 121VU | FUEL/ACT AIR SOV/MAN/SPLY | 64QH | J20 |
| 121VU | FUEL/ACT AIR SOV/AUTO/SPLY | 63QH | J19 |
| 121VU | FUEL/ACT XFR VLV/MOT2 | 66QH | J18 |
| 121VU | FUEL/ACT XFR VLV/MOT1 | 65QH | J17 |
| 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/HI/LVL/SPLY | 1QJ | L24 |
| 121VU | FUEL/RFL/DFL/SPLY | 2QU | L23 |
| 121VU | FUEL/RFL/DFL/XFR/DEFUEL/VALVE | 1QU | L22 |
| 121VU | FUEL/ACT VENT VLV/MAN/SPLY | 62QH | L21 |
| 121VU | FUEL/ACT VENT VLV/AUTO/SPLY | 61QH | L20 |
| 121VU | FUEL/INLET VLV MAN CTL SPLY AFT 2 | 81QH | L16 |
| 121VU | FUEL/INLET VLV MAN CTL SPLY AFT 1 | 45QH | L15 |
| 121VU | FUEL/ACT/FUEL PUMP/SPLY | 25QH | Q29 |
D. Leak Test
(1) Examine the outer drain valve (13) and the water drain valve for leaks.
(2) Make sure that there are no leaks.
5. Close-up(1) Examine the outer drain valve (13) and the water drain valve for leaks.
(2) Make sure that there are no leaks.
Subtask 28-11-47-410-060-B ** ON A/C NOT FOR ALL
A. Close Access
(1) For the outer drain valve of ACT AFT1, install access panels 197AB and 153AZ on the lower fuselage (Ref. AMM TASK 53-35-13-400-001).
(2) For the outer drain valve of ACT AFT2, install the water-drain-valve service panel on the lower fuselage.
Subtask 28-11-47-860-072-A ** ON A/C NOT FOR ALL (1) For the outer drain valve of ACT AFT1, install access panels 197AB and 153AZ on the lower fuselage (Ref. AMM TASK 53-35-13-400-001).
(2) For the outer drain valve of ACT AFT2, install the water-drain-valve service panel on the lower fuselage.
B. Put the aircraft back to the serviceable condition.
(1) Make sure that the work area is clean and clear of tools and other items.
(2) If installed, remove the safety barriers.
(3) Remove the WARNING NOTICE(S).
(4) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(1) Make sure that the work area is clean and clear of tools and other items.
(2) If installed, remove the safety barriers.
(3) Remove the WARNING NOTICE(S).
(4) Remove the ground support and maintenance equipment, the special and standard tools and all other items.