DOC AIRBUS | AMM A320FRemoval of the Additional Center Tank (ACT) Outer Drain-Valve
TASK 28-11-47-000-802-A
Removal of the Additional Center Tank (ACT) Outer Drain-Valve
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Work Zones and Access Panels
C. Referenced Information
3. Job Set-up
Subtask 28-11-47-941-050-A ** ON A/C NOT FOR ALL
Subtask 28-11-47-020-058-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.02 07:03:36 UTC
Removal of the Additional Center Tank (ACT) Outer 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. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | CONTAINER 10 L(2 1/2 USGAL) |
| No specific | 1 | PLIERS - THIN NOSE |
| No specific | AR | SAFETY BARRIER(S) |
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| No specific | AR | WARNING NOTICE(S) |
| 98D28108558000 | 1 | WRENCH - R-I DRAIN VALVE |
| 98D28108559000 | 1 | ADAPTER - TUBE, DRAIN VALVE |
| 98D28108561000 | 1 | EXTRACTOR - WATER DRAIN TUBE |
| 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 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 28-00-00-910-001-A | Fuel Safety Procedures |
| TASK 28-25-00-650-001-A | Pressure Defuel |
| 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 |
Additional Center Tank (ACT) Outer Drain-ValveSubtask 28-11-47-941-050-A ** ON A/C NOT FOR ALL
A. Safety Precautions
(1) You must 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) Put the WARNING NOTICE(S) in position to tell persons not to operate the fuel system.
Subtask 28-11-47-650-050-A ** ON A/C NOT FOR ALL (1) You must 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) Put the WARNING NOTICE(S) in position to tell persons not to operate the fuel system.
B. Fuel Configuration
(1) Defuel the applicable ACT(s) (Ref. AMM TASK 28-25-00-650-001).
(2) Drain the remaining fuel from the applicable ACT(s) (Ref. AMM TASK 28-25-00-650-005).
Subtask 28-11-47-865-088-A ** ON A/C NOT FOR ALL (1) Defuel the applicable ACT(s) (Ref. AMM TASK 28-25-00-650-001).
(2) Drain the remaining fuel from the applicable ACT(s) (Ref. AMM TASK 28-25-00-650-005).
C. Open, safety and tag this(these) circuit breaker(s):
Subtask 28-11-47-010-062-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) Remove access panels 197AB and 153AZ from the lower fuselage to get access to the outer drain valve of ACT AFT1 (Ref. AMM TASK 53-35-13-000-001).
(2) Remove the water-drain-valve service panel from the lower fuselage to get access to the outer drain valve of ACT AFT2.
4. Procedure(1) Remove access panels 197AB and 153AZ from the lower fuselage to get access to the outer drain valve of ACT AFT1 (Ref. AMM TASK 53-35-13-000-001).
(2) Remove the water-drain-valve service panel from the lower fuselage to get access to the outer drain valve of ACT AFT2.
Subtask 28-11-47-020-058-A ** ON A/C NOT FOR ALL
A. Removal of the ACT Outer Drain-Valve
(a) Remove the screw (11), washer (10), bonding strap (8) and the spacer (9) from the aircraft structure.
(b) Remove and discard the retaining ring (7) from the flange (6) with the PLIERS - THIN NOSE.
(d) Put the 98D28108561000 EXTRACTOR - WATER DRAIN TUBE in the ACT water drain-tube (3).
(e) Turn the 98D28108561000 EXTRACTOR - WATER DRAIN TUBE to 90 deg. until it hangs on the ACT water drain-tube (3).
(f) Pull the 98D28108561000 EXTRACTOR - WATER DRAIN TUBE down and remove the ACT water drain-tube (3) from the access hole.
(g) Remove and discard the O-ring (2) and the O-rings (4) from the ACT water drain-tube (3).
(2) Put a CONTAINER 10 L(2 1/2 USGAL) below the access hole.
(3) Put the 98D28108559000 ADAPTER - TUBE, DRAIN VALVE into the access hole and connect it to the drain port (1).
(5) Turn the 98D28108558000 WRENCH - R-I DRAIN VALVE to the counter-clockwise direction to release the outer drain valve (13).
(6) Carefully remove the outer drain valve (13).
(7) Remove and discard the packing (12).
NOTE: The subsequent procedure is the same for each ACT.
(1) Remove the ACT water drain-tube (3): (a) Remove the screw (11), washer (10), bonding strap (8) and the spacer (9) from the aircraft structure.
(b) Remove and discard the retaining ring (7) from the flange (6) with the PLIERS - THIN NOSE.
WARNING:
BE CAREFUL WHEN YOU REMOVE OR INSTALL THE SPRING. THE TENSION IN THE SPRING CAN CAUSE INJURY TO PERSONS.
(c) Remove the flange (6) and the compression spring (5) from the ACT water drain-tube (3). (d) Put the 98D28108561000 EXTRACTOR - WATER DRAIN TUBE in the ACT water drain-tube (3).
(e) Turn the 98D28108561000 EXTRACTOR - WATER DRAIN TUBE to 90 deg. until it hangs on the ACT water drain-tube (3).
(f) Pull the 98D28108561000 EXTRACTOR - WATER DRAIN TUBE down and remove the ACT water drain-tube (3) from the access hole.
(g) Remove and discard the O-ring (2) and the O-rings (4) from the ACT water drain-tube (3).
(2) Put a CONTAINER 10 L(2 1/2 USGAL) below the access hole.
(3) Put the 98D28108559000 ADAPTER - TUBE, DRAIN VALVE into the access hole and connect it to the drain port (1).
NOTE: This is to prevent fuel spillage into the aircraft.
NOTE: This is to make sure that the outer drain valve cannot fall into the bilge area.
(4) Put the 98D28108558000 WRENCH - R-I DRAIN VALVE in the opening of the 98D28108559000 ADAPTER - TUBE, DRAIN VALVE and connect it to the outer drain valve (13). (5) Turn the 98D28108558000 WRENCH - R-I DRAIN VALVE to the counter-clockwise direction to release the outer drain valve (13).
(6) Carefully remove the outer drain valve (13).
(7) Remove and discard the packing (12).