DOC AIRBUS | AMM A320FDeactivation of the Cabin Recirculation Fan - FAA Operators Only
TASK 21-21-51-040-801-A
Deactivation of the Cabin Recirculation Fan - FAA Operators Only
1. Reason for the Job
MMEL 21-21-01
CABIN FANS (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 21-21-51-861-051-A
Subtask 21-21-51-865-053-A
Subtask 21-21-51-941-051-A
[Rev.10 from 2021]
2026.04.02 06:10:55 UTC
Deactivation of the Cabin Recirculation Fan - FAA Operators Only
1. Reason for the Job
MMEL 21-21-01
CABIN FANS (FAA ONLY)
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 210 | CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD |
| REFERENCE | DESIGNATION |
|---|---|
| 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 21-21-51-861-051-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 21-21-51-865-053-A
A. Table of the circuit breakers used in this procedure:
Subtask 21-21-51-040-050-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C ALL | |||
| 122VU | AIR COND/RECIRC FAN/R/SPLY | 3HG | W18 |
| 122VU | AIR COND/RECIRC FAN/L/SPLY | 1HG | X18 |
B. Deactivation of the Cabin Recirculation Fan - FAA Operators Only
(1) For a defective LH cabin-recirculation fan 1:
(a) Open, safety and tag this(these) circuit breaker(s):
(a) Open, safety and tag this(these) circuit breaker(s):
5. Close-up(1) For a defective LH cabin-recirculation fan 1:
(a) Open, safety and tag this(these) circuit breaker(s):
- 1HG.
(a) Open, safety and tag this(these) circuit breaker(s):
- 3HG.
Subtask 21-21-51-941-051-A
A. Safety Precautions
(1) Make an entry in the logbook.
Subtask 21-21-51-862-051-A (1) 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).