Deactivation of the Brake Fan
TASK 32-48-00-040-803-A
Deactivation of the Brake Fan
MMEL 32-48-01
BRAKE 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 32-48-00-861-052-A ** ON A/C NOT FOR ALL
Subtask 32-48-00-040-054-A ** ON A/C NOT FOR ALL
Subtask 32-48-00-410-053-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 00:50:29 UTC
Deactivation of the Brake Fan
ZONE: 210
1. Reason for the JobMMEL 32-48-01
BRAKE FAN (FAA ONLY)
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE |
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 210 | CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD |
| 121AL, 831, 841 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 24-42-00-861-001-A | Energize the Ground Service Network from the External Power |
| TASK 24-42-00-862-001-A | De-energize the Ground Service Network Supplied from the External Power |
| 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 |
Subtask 32-48-00-861-052-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
(1) Open access door 121AL to get access to the external power receptacle and panel 108VU.
(2) Energize the ground service network
(Ref. AMM TASK 24-42-00-861-001).
Subtask 32-48-00-010-056-A ** ON A/C NOT FOR ALL (1) Open access door 121AL to get access to the external power receptacle and panel 108VU.
(2) Energize the ground service network
(Ref. AMM TASK 24-42-00-861-001).
B. Get Access
(1) Put the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position in front of applicable passenger/crew door 831 ( 841).
(2) Open passenger/crew door 831 ( 841) (Ref. AMM TASK 52-10-00-010-001).
(3) Get access to panel 121VU.
Subtask 32-48-00-865-063-A ** ON A/C NOT FOR ALL (1) Put the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position in front of applicable passenger/crew door 831 ( 841).
(2) Open passenger/crew door 831 ( 841) (Ref. AMM TASK 52-10-00-010-001).
(3) Get access to panel 121VU.
C. Table of the circuit breakers used in this procedure:
4. Procedure| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| FOR FIN: 2790GMFOR FIN: 2789GM | |||
| 121VU | HYDRAULIC/BRK FAN/WHEELS/1 AND 2 | 1GS | L32 |
| FOR FIN: 2792GMFOR FIN: 2791GM | |||
| 121VU | HYDRAULIC/BRK FAN/WHEELS/3 AND 4 | 2GS | L35 |
Subtask 32-48-00-040-054-A ** ON A/C NOT FOR ALL
A. Deactivation of the Brake Fan
(1) Open, safety and tag this(these) circuit breaker(s):
(a) FOR [2789GM] , [2790GM]
5. Close-up(1) Open, safety and tag this(these) circuit breaker(s):
(a) FOR [2789GM] , [2790GM]
- 1GS.
- 2GS.
Subtask 32-48-00-410-053-A ** ON A/C NOT FOR ALL
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close panel 121VU.
(3) Close passenger/crew door 831 ( 841) (Ref. AMM TASK 52-10-00-410-001).
(4) Remove the access platform(s).
Subtask 32-48-00-860-063-A ** ON A/C NOT FOR ALL (1) Make sure that the work area is clean and clear of tools and other items.
(2) Close panel 121VU.
(3) Close passenger/crew door 831 ( 841) (Ref. AMM TASK 52-10-00-410-001).
(4) Remove the access platform(s).
B. Put the aircraft back to its initial configuration.
(1) Make an entry in the logbook.
(2) Put an applicable placard in position in the cockpit (refer to your standard practices and local regulations).
(3) De-energize the ground service network
(Ref. AMM TASK 24-42-00-862-001).
(4) Close access door 121AL.
(1) Make an entry in the logbook.
(2) Put an applicable placard in position in the cockpit (refer to your standard practices and local regulations).
(3) De-energize the ground service network
(Ref. AMM TASK 24-42-00-862-001).
(4) Close access door 121AL.