DOC AIRBUS | AMM A320FDeactivation of the Extract Fan - FAA Operators Only
TASK 21-26-00-040-021-A
Deactivation of the Extract Fan - FAA Operators Only
1. Reason for the Job
MMEL 21-26-02
EXTRACT FAN (FAA ONLY)
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 21-26-00-861-105-A
Subtask 21-26-00-865-131-A
Subtask 21-26-00-942-094-A
[Rev.10 from 2021]
2026.04.02 06:10:57 UTC
Deactivation of the Extract Fan - FAA Operators Only
1. Reason for the Job
MMEL 21-26-02
EXTRACT FAN (FAA ONLY)
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| No specific | AR | WARNING NOTICE(S) |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 210 | CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 21-26-00-040-007-A | Extract Fan Inoperative - Check of Conditioned-Air Inlet Valve Open |
| 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) |
Subtask 21-26-00-861-105-A
A. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
4. Procedure(1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
Subtask 21-26-00-865-131-A
A. Table of the circuit breakers used in this procedure:
Subtask 21-26-00-040-079-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 123VU | AVNCS VENT/EXTC/FAN | 2HQ | AE02 |
| ** ON A/C NOT FOR ALL | |||
| 123VU | AVNCS VENT/EXTC/FAN | 2HQ | AC04 |
B. Deactivation of the Extract Fan - FAA Operators Only
(1) Open the conditioned-air inlet valve (Ref. AMM TASK 21-26-00-040-007).
(2) In the cockpit, on the AIR COND section of overhead panel 30VU:
(a) Make sure that the PACK 1 and PACK 2 pushbutton switches are pushed (the FAULT and OFF legends are off).
(3) In the cockpit, on the VENTILATION section of overhead panel 22VU:
(a) Make sure that the EXTRACT pushbutton switch is released (the OVRD legend is on).
(4) On the ECAM control panel, push the CLR pushbutton switch to cancel the VENT EXTRACT FAULT alert.
(5) Open, safety and tag this(these) circuit breaker(s):
5. Close-up(1) Open the conditioned-air inlet valve (Ref. AMM TASK 21-26-00-040-007).
(2) In the cockpit, on the AIR COND section of overhead panel 30VU:
(a) Make sure that the PACK 1 and PACK 2 pushbutton switches are pushed (the FAULT and OFF legends are off).
(3) In the cockpit, on the VENTILATION section of overhead panel 22VU:
(a) Make sure that the EXTRACT pushbutton switch is released (the OVRD legend is on).
(4) On the ECAM control panel, push the CLR pushbutton switch to cancel the VENT EXTRACT FAULT alert.
(5) Open, safety and tag this(these) circuit breaker(s):
- 2HQ.
Subtask 21-26-00-942-094-A
A. Safety Precautions
(1) Put a WARNING NOTICE(S) in the cockpit to tell the crew that the extract fan is deactivated.
(2) Make an entry in the logbook.
Subtask 21-26-00-862-106-A (1) Put a WARNING NOTICE(S) in the cockpit to tell the crew that the extract fan is deactivated.
(2) Make an entry in the logbook.
B. Aircraft Maintenance 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).