DOC AIRBUS | AMM A320FFumigation of the Fuselage Pressurized Areas with Carbon-Dioxide (CO2 Gas)
TASK 12-21-12-670-004-A
Fumigation of the Fuselage Pressurized Areas with Carbon-Dioxide (CO2 Gas)
Fumigation of the fuselage infested by rodents, reptiles and insects
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Referenced Information
3. Job Set-up
Subtask 12-21-12-941-051-A
Subtask 12-21-12-614-050-A
Subtask 12-21-12-410-055-A
[Rev.10 from 2021]
2026.04.02 06:41:34 UTC
Fumigation of the Fuselage Pressurized Areas with Carbon-Dioxide (CO2 Gas)
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
WARNING:
IF YOU DO THE TASK IN A HANGAR WHICH HAS AREAS BELOW THE FLOOR, MAKE SURE THAT THEY ARE SEALED. THE CARBON DIOXIDE (CO2) GAS IS HEAVIER THAN THE AIR AND IS POISONOUS. IT CAN CAUSE ASPHYXIA.
1. Reason for the JobFumigation of the fuselage infested by rodents, reptiles and insects
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | DETECTOR-COMBUSTIBLE GAS |
| No specific | 1 | SAFETY BARRIER(S) |
| No specific | 2 | WARNING NOTICE(S) |
| FOR [10HL] (OUTFLOW VALVE) | ||
| No specific | 1 | ACCESS PLATFORM 2M (6 FT) |
| No specific | 1 | CHARGING EQUIPMENT - GAS, STANDARD |
| No specific | 1 | LOCALLY MANUFACTURED - ADAPTER |
| No specific | 1 | SUPPLY LINE - GAS, PRESSURIZED |
| FOR [8DG2] (WINDOW-SLIDING, R) | ||
| No specific | 1 | ACCESS PLATFORM 4M (13 FT) |
| No specific | 1 | HOSE - RUBBER |
| No specific | 1 | LOCALLY MANUFACTURED - ADAPTER |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.05RDA1) | Adhesive Film Tape-Masking - - |
| (Material No.11AFA1) | Disinfectant-Aircraft Fumigation - - |
| FOR [10HL] (OUTFLOW VALVE) | |
| (Material No.11AFA1) | Disinfectant-Aircraft Fumigation - - |
| FOR [8DG2] (WINDOW-SLIDING, R) | |
| No specific | CABLE TIES |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 100 | LOWER HALF FUSELAGE INCLUDING RADOME |
| 200 | UPPER HALF FUSELAGE |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 08-21-00-200-001-A-01 | Quick Leveling with a Spirit Level in the FWD Cargo Compartment |
| TASK 08-21-00-200-001-A-02 | Quick Leveling Procedure with the ADIRU |
| TASK 08-21-00-200-001-A-03 | Quick Leveling with a Spirit Level in the Passenger Compartment |
| TASK 08-21-00-200-001-A | Quick Leveling Using the Attitude Monitor |
| TASK 08-21-00-200-001-A-01 | Quick Leveling with a Spirit Level in the FWD Cargo Compartment |
| TASK 08-21-00-200-001-A-02 | Quick Leveling Procedure with the ADIRU |
| TASK 08-21-00-200-001-A-03 | Quick Leveling with a Spirit Level in the Passenger Compartment |
| TASK 12-33-21-618-001-A | Pre-conditioning through the LP Ground Connection (Aircraft Electrical Power Available) |
| TASK 12-33-21-618-001-A-01 | Pre-conditioning through the HP Ground Connection |
| TASK 12-33-21-618-001-A-02 | Pre-conditioning with the APU |
| TASK 12-33-21-618-001-A-03 | Pre-conditioning through the LP Ground Connection (Aircraft Electrical Power Not Available) |
| 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 25-25-11-000-001-A | Removal of the Filler Panels |
| TASK 25-25-11-400-001-A | Installation of the Filler Panels |
| TASK 52-10-00-010-001-A | Opening of the Passenger/Crew Door |
| TASK 52-10-00-410-001-A | Closing of the Passenger/Crew Door |
| 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 |
| TASK 52-30-00-860-006-A | Open the Bulk Cargo-Compartment Door |
| TASK 52-30-00-860-008-A | Close the Bulk Cargo-Compartment Door |
| TASK 52-41-00-010-002-A | Open the Avionics Compartment Doors for Access |
| TASK 52-41-00-410-002-A | Close the Avionics Compartment Doors after Access |
| TASK 56-12-11-010-001-A | Opening of the Cockpit Sliding Windows |
| TASK 56-12-11-410-001-A | Closing of the Cockpit Sliding Windows |
| TASK 30-71-00-00 | DRAIN MAST ICE PROTECTION - DESCRIPTION AND OPERATION |
| TASK 53-19-00-00 | MISCELLANEOUS - DESCRIPTION AND OPERATION |
| TASK 53-29-00-00 | MISCELLANEOUS - DESCRIPTION AND OPERATION |
| TASK 53-49-00-00 | MISCELLANEOUS - DESCRIPTION AND OPERATION |
| FOR [10HL] (OUTFLOW VALVE) | |
| FOR [8DG2] (WINDOW-SLIDING, R) | |
Adapter Air-Outflow ValveSubtask 12-21-12-941-051-A
A. Safety Precautions
(1) Make sure that there is sufficient airflow around the aircraft.
(2) Do this task on the apron.
(3) If you do the task in the hangar:
(a) Open the doors of the hangar.
(b) Put the SAFETY BARRIER(S) in position to keep all persons out of the work area.
(c) Put the WARNING NOTICE(S) in position to tell your personnel about the aircraft fumigation.
Subtask 12-21-12-010-056-A (1) Make sure that there is sufficient airflow around the aircraft.
(2) Do this task on the apron.
(3) If you do the task in the hangar:
(a) Open the doors of the hangar.
(b) Put the SAFETY BARRIER(S) in position to keep all persons out of the work area.
(c) Put the WARNING NOTICE(S) in position to tell your personnel about the aircraft fumigation.
B. Get Access
(1) Put the access platforms in position.
(a) FOR [8DG2] (WINDOW-SLIDING, R)
(a) Open the sliding window 8DG2 (Ref. AMM TASK 56-12-11-010-001).
(3) In the forward utility area of the cabin:
(a) Remove the filler-panels of the center service channel as necessary to get access to the area above the ceiling (Ref. AMM TASK 25-25-11-000-001).
Subtask 12-21-12-480-050-A (1) Put the access platforms in position.
(a) FOR [8DG2] (WINDOW-SLIDING, R)
- Put the ACCESS PLATFORM 4M (13 FT) in position at the sliding window 8DG2.
- Put the ACCESS PLATFORM 2M (6 FT) in position at the outflow valve 10HL.
(a) Open the sliding window 8DG2 (Ref. AMM TASK 56-12-11-010-001).
(3) In the forward utility area of the cabin:
(a) Remove the filler-panels of the center service channel as necessary to get access to the area above the ceiling (Ref. AMM TASK 25-25-11-000-001).
C. Installation of the Fumigation Equipment
(1) FOR [8DG2] (WINDOW-SLIDING, R)
(a) Install the sliding window adapter.
1 Put the LOCALLY MANUFACTURED - ADAPTER (1) in position in the cockpit window frame and attach it with the screws and the wing nuts.
2 Put the HOSE - RUBBER, min. dia 150 mm (6.0 in.), (2) through the opening in the center service channel.
3 Put the upper end of the hose (2) in the highest position in the fuselage and attach it with CABLE TIES.
4 Connect the lower end of the hose (2) to the window adapter (1).
(2) FOR [10HL] (OUTFLOW VALVE)
(a) Install the air-outflow valve-adapter.
1 Put the LOCALLY MANUFACTURED - ADAPTER (1) in position on the outflow valve 10HL and attach it with the hooks and the wing nuts.
2 Connect the SUPPLY LINE - GAS, PRESSURIZED of the Disinfectant-Aircraft Fumigation - - (Material No.11AFA1) CHARGING EQUIPMENT - GAS, STANDARD to the adapter (1).
Subtask 12-21-12-869-050-A ** ON A/C NOT FOR ALL (1) FOR [8DG2] (WINDOW-SLIDING, R)
(a) Install the sliding window adapter.
1 Put the LOCALLY MANUFACTURED - ADAPTER (1) in position in the cockpit window frame and attach it with the screws and the wing nuts.
2 Put the HOSE - RUBBER, min. dia 150 mm (6.0 in.), (2) through the opening in the center service channel.
3 Put the upper end of the hose (2) in the highest position in the fuselage and attach it with CABLE TIES.
4 Connect the lower end of the hose (2) to the window adapter (1).
(2) FOR [10HL] (OUTFLOW VALVE)
(a) Install the air-outflow valve-adapter.
1 Put the LOCALLY MANUFACTURED - ADAPTER (1) in position on the outflow valve 10HL and attach it with the hooks and the wing nuts.
2 Connect the SUPPLY LINE - GAS, PRESSURIZED of the Disinfectant-Aircraft Fumigation - - (Material No.11AFA1) CHARGING EQUIPMENT - GAS, STANDARD to the adapter (1).
D. Aircraft Maintenance Configuration
(1) Make sure that the attitude of the aircraft is level or nose-up:
(3) Close the forward and aft cargo-compartment doors (Ref. AMM TASK 52-30-00-860-002).
(4) Make sure that the avionics compartment access doors are closed (Ref. AMM TASK 52-41-00-410-002).
(5) If a bulk cargo-compartment door is installed, make sure it is closed (Ref. AMM D/O 52-30-00-86).
(6) Close the outlet of all:
Subtask 12-21-12-869-050-B ** ON A/C NOT FOR ALL (1) Make sure that the attitude of the aircraft is level or nose-up:
- (Ref. AMM TASK 08-21-00-200-001),
or - (Ref. AMM TASK 08-21-00-200-001),
or - (Ref. AMM TASK 08-21-00-200-001),
or - (Ref. AMM TASK 08-21-00-200-001).
(3) Close the forward and aft cargo-compartment doors (Ref. AMM TASK 52-30-00-860-002).
(4) Make sure that the avionics compartment access doors are closed (Ref. AMM TASK 52-41-00-410-002).
(5) If a bulk cargo-compartment door is installed, make sure it is closed (Ref. AMM D/O 52-30-00-86).
(6) Close the outlet of all:
- Fuselage drain valves
Nose forward fuselage (Ref. AMM D/O 53-19-00-00),
Forward fuselage (Ref. AMM D/O 53-29-00-00)
and
Rear fuselage (Ref. AMM D/O 53-49-00-00). - Waste-water drain masts (Ref. AMM D/O 30-71-00-00)
with Adhesive Film Tape-Masking - - (Material No.05RDA1) .
D. Aircraft Maintenance Configuration
(1) Make sure that the attitude of the aircraft is level or nose-up:
(3) Close the forward and aft cargo-compartment doors (Ref. AMM TASK 52-30-00-860-002).
(4) Make sure that the avionics compartment access doors are closed (Ref. AMM TASK 52-41-00-410-002).
(5) If a bulk cargo-compartment door is installed, make sure it is closed (Ref. AMM TASK 52-30-00-860-008).
(6) Close the outlet of all:
4. Procedure(1) Make sure that the attitude of the aircraft is level or nose-up:
- (Ref. AMM TASK 08-21-00-200-001),
or - (Ref. AMM TASK 08-21-00-200-001),
or - (Ref. AMM TASK 08-21-00-200-001).
(3) Close the forward and aft cargo-compartment doors (Ref. AMM TASK 52-30-00-860-002).
(4) Make sure that the avionics compartment access doors are closed (Ref. AMM TASK 52-41-00-410-002).
(5) If a bulk cargo-compartment door is installed, make sure it is closed (Ref. AMM TASK 52-30-00-860-008).
(6) Close the outlet of all:
- Fuselage drain valves
Nose forward fuselage (Ref. AMM D/O 53-19-00-00),
Forward fuselage (Ref. AMM D/O 53-29-00-00)
and
Rear fuselage (Ref. AMM D/O 53-49-00-00). - Waste-water drain masts (Ref. AMM D/O 30-71-00-00)
with Adhesive Film Tape-Masking - - (Material No.05RDA1) .
Subtask 12-21-12-614-050-A
A. Fumigation of the Aircraft
(1) Preparation
(2) Operate the gas charging equipment to fill the pressurized area of the fuselage with Disinfectant-Aircraft Fumigation - - (Material No.11AFA1) (carbon-dioxide).
(a) Refer to the following table for the required quantity of CO2 gas.
(3) Stop the gas charging equipment when the DETECTOR-COMBUSTIBLE GAS shows that CO2 (carbon-dioxide) flows out of the outlet hose (2).
(4) Keep all doors closed for 12 hours.
Subtask 12-21-12-010-061-A (1) Preparation
WARNING:
USE THE CORRECT BREATHING EQUIPMENT. THE GAS IS POISONOUS.
WARNING:
USE THE CORRECT BREATHING EQUIPMENT. THE GAS IS POISONOUS.
WARNING:
BEFORE YOU START THE FUMIGATION PROCEDURE, MAKE SURE THAT NO PERSONS ARE IN THE AIRCRAFT.
THE FUMIGATION GAS CAN CAUSE DEATH.
WARNING:
DO NOT OPEN THE DOORS DURING THE PROCEDURE.
POISONOUS GAS IS IN THE AIRCRAFT.
(a) Put a WARNING NOTICE(S) in position at all doors to tell your personnel not to open them. (2) Operate the gas charging equipment to fill the pressurized area of the fuselage with Disinfectant-Aircraft Fumigation - - (Material No.11AFA1) (carbon-dioxide).
(a) Refer to the following table for the required quantity of CO2 gas.
| | A/C A318 | A/C A319 | A/C A320 | A/C A321 |
|---|---|---|---|---|
| Quantity of CO2 gas (carbon-dioxide) | 550Kg | 600kg | 750kg | 900kg |
(4) Keep all doors closed for 12 hours.
B. Opening of all Pressure Sealed Doors
(2) Open the forward and aft cargo-compartment doors (Ref. AMM TASK 52-30-00-860-001).
(3) Open all avionics compartment access-doors (Ref. AMM TASK 52-41-00-010-002).
(4) If a bulk cargo-compartment door is installed, open it (Ref. AMM TASK 52-30-00-860-006).
(5) Open all passenger/crew doors (Ref. AMM TASK 52-10-00-010-001).
Subtask 12-21-12-080-050-A WARNING:
STOP THE OPENING PROCEDURE IF THE RED WARNING LIGHT FLASHES. IF THE RED WARNING LIGHT FLASHES, REMAINING PRESSURE CAN CAUSE THE DOOR TO OPEN SUDDENLY AND CAN:
- KILL OR CAUSE SERIOUS INJURY TO PERSONS
- CAUSE DAMAGE TO THE AIRCRAFT.
WARNING:
USE THE CORRECT BREATHING EQUIPMENT. THE GAS IS POISONOUS.
(1) Make sure that there is sufficient airflow around the aircraft. (2) Open the forward and aft cargo-compartment doors (Ref. AMM TASK 52-30-00-860-001).
(3) Open all avionics compartment access-doors (Ref. AMM TASK 52-41-00-010-002).
(4) If a bulk cargo-compartment door is installed, open it (Ref. AMM TASK 52-30-00-860-006).
(5) Open all passenger/crew doors (Ref. AMM TASK 52-10-00-010-001).
C. Removal of the Fumigation Equipment
(1) Disconnect the gas charging equipment from the air-outflow valve adapter (1).
(2) Remove the outlet tube (2) and the adapters (1).
(3) Remove the masking tape (Mat. No. 08-074) from the outlet of the:
Subtask 12-21-12-861-062-A Subtask 12-21-12-618-050-A (1) Disconnect the gas charging equipment from the air-outflow valve adapter (1).
(2) Remove the outlet tube (2) and the adapters (1).
(3) Remove the masking tape (Mat. No. 08-074) from the outlet of the:
- Waste-water drain masts (Ref. AMM D/O 30-71-00-00)
and - All fuselage drain valves
Nose forward fuselage (Ref. AMM D/O 53-19-00-00),
Forward fuselage (Ref. AMM D/O 53-29-00-00)
and
Rear fuselage (Ref. AMM D/O 53-49-00-00).
E. Removal of the Remaining CO2 (Carbon-Dioxide)
(2) Do a check of the CO2 concentration.
(a) Use a DETECTOR-COMBUSTIBLE GAS and examine the aircraft for remaining CO2.
(b) Make sure that there is less than 5% Vol. CO2 concentration 0.2 m (0.66 ft.) above the cabin floor level.
5. Close-upWARNING:
USE THE CORRECT BREATHING EQUIPMENT. THE GAS IS POISONOUS.
WARNING:
USE THE CORRECT BREATHING EQUIPMENT. THE GAS IS POISONOUS.
(1) Do the ground air pre-conditioning for a minimum of 30 min to remove the remaining CO2 from all areas (Ref. AMM TASK 12-33-21-618-001). (2) Do a check of the CO2 concentration.
(a) Use a DETECTOR-COMBUSTIBLE GAS and examine the aircraft for remaining CO2.
(b) Make sure that there is less than 5% Vol. CO2 concentration 0.2 m (0.66 ft.) above the cabin floor level.
Subtask 12-21-12-410-055-A
A. Close Access
(1) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(2) Remove the WARNING NOTICE(S).
(3) Install the filler-panels of the center service channel in the forward cabin utility area (Ref. AMM TASK 25-25-11-400-001).
(4) Close the cockpit sliding window 8DG2 (Ref. AMM TASK 56-12-11-410-001).
(5) Close all pressure sealed doors.
(a) Wait 1 hour before you close all the doors.
(b) Close the forward and aft cargo compartment doors (Ref. AMM TASK 52-30-00-860-002).
(c) Close the avionics compartment access-doors (Ref. AMM TASK 52-41-00-410-002).
(d) If a bulk cargo-compartment door is installed, close it (Ref. AMM TASK 52-30-00-860-008).
(e) Close the passenger/crew door(s) (Ref. AMM TASK 52-10-00-410-001).
(6) If you did the task in a hangar with under floor areas:
(b) Make sure that there is less than 5% Vol. CO2 concentration 0.2 m (0.66 ft.) above the floor of the under-floor areas of the hangar.
Subtask 12-21-12-862-062-A (1) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(2) Remove the WARNING NOTICE(S).
(3) Install the filler-panels of the center service channel in the forward cabin utility area (Ref. AMM TASK 25-25-11-400-001).
(4) Close the cockpit sliding window 8DG2 (Ref. AMM TASK 56-12-11-410-001).
(5) Close all pressure sealed doors.
(a) Wait 1 hour before you close all the doors.
(b) Close the forward and aft cargo compartment doors (Ref. AMM TASK 52-30-00-860-002).
(c) Close the avionics compartment access-doors (Ref. AMM TASK 52-41-00-410-002).
(d) If a bulk cargo-compartment door is installed, close it (Ref. AMM TASK 52-30-00-860-008).
(e) Close the passenger/crew door(s) (Ref. AMM TASK 52-10-00-410-001).
(6) If you did the task in a hangar with under floor areas:
WARNING:
USE THE CORRECT BREATHING EQUIPMENT. THE GAS IS POISONOUS.
WARNING:
USE THE CORRECT BREATHING EQUIPMENT. THE GAS IS POISONOUS.
(a) Carefully open the sealed areas of the hangar and do a check for remaining CO2 concentration with a DETECTOR-COMBUSTIBLE GAS. (b) Make sure that there is less than 5% Vol. CO2 concentration 0.2 m (0.66 ft.) above the floor of the under-floor areas of the hangar.