W DOC AIRBUS | AMM A320F

Deactivation of the Blower Fan - FAA Operators Only

TASK 21-26-00-040-019-A
Deactivation of the Blower Fan - FAA Operators Only

ZONE: 210
FIN: 20HQ
Task Summary
Access Test Specific Tools Mhr E/T Nb Men
NOYESNO0.60.61
1. Reason for the Job
MMEL 21-26-01
BLOWER 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)
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
210
CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD
 C. Referenced Information
REFERENCE
DESIGNATION
TASK 21-26-00-040-013-A
Deactivation of the Conditioned-Air Inlet Valve when the Blower Fan is Inoperative
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 31-60-00-860-001-A
EIS Start Procedure
TASK 31-60-00-860-002-A
EIS Stop Procedure
3. Job Set-up
Subtask 21-26-00-861-098-A
A. Aircraft Maintenance Configuration
   (1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
   (2) Do the EIS start procedure (upper ECAM DU and lower ECAM DU only)
(Ref. AMM TASK 31-60-00-860-001).
4. Procedure
Subtask 21-26-00-865-128-A
A. Table of the circuit breakers used in this procedure:
PANELDESIGNATIONFINLOCATION
** ON A/C ALL
123VUAVNCS VENT/BLOWER/FAN1HQAD10
Subtask 21-26-00-040-080-A
B. Deactivation of the Blower Fan - FAA Operators Only
   (1) Do the deactivation of the conditioned-air inlet valve (Ref. AMM TASK 21-26-00-040-013).
   (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 BLOWER pushbutton switch is released (the OVRD legend is on).
   (4) Open, safety and tag this(these) circuit breaker(s):
  • 1HQ.
   (5) On the bottom part of the upper ECAM display-unit:
     (a) Make sure that the VENT EXTRACT FAULT alert does not come into view.
5. Close-up
Subtask 21-26-00-942-092-A
A. Safety Precautions
   (1) Put a WARNING NOTICE(S) in the cockpit to tell the crew that the blower fan is deactivated.
   (2) Make an entry in the logbook.
Subtask 21-26-00-862-101-A
B. Aircraft Maintenance Configuration
   (1) Do the EIS stop procedure
(Ref. AMM TASK 31-60-00-860-002).
   (2) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
[Rev.10 from 2021] 2026.04.02 06:10:57 UTC
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