DOC AIRBUS | AMM A320FRemoval of the Fan Duct Panels [CFMB]
TASK 72-23-00-000-027-A
Removal of the Fan Duct Panels
1. Reason for the Job
Self explanatory
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 72-23-00-941-075-A ** ON A/C NOT FOR ALL
Subtask 72-23-00-020-063-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 12:59:50 UTC
Removal of the Fan Duct Panels
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | ACCESS PLATFORM 1M(3 FT) |
| No specific | AR | WARNING NOTICE(S) |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| FOR [1000EM1] (ENGINE-1) | |
| 437AL, 438AR, 451AL, 452AR | |
| FOR [1000EM2] (ENGINE-2) | |
| 447AL, 448AR, 461AL, 462AR | |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 71-13-00-010-040-B | Opening of the Fan Cowl Doors |
| TASK 78-30-00-481-041-B | Make the Thrust Reverser Unserviceable for Maintenance |
| TASK 78-36-00-010-040-B | Opening of the Thrust Reverser Doors |
Fan Duct PanelSubtask 72-23-00-941-075-A ** ON A/C NOT FOR ALL
A. Safety Precautions
(1) On the center pedestal, on the ENG panel 115VU:
(a) Put a WARNING NOTICE(S) to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2).
Subtask 72-23-00-010-086-A ** ON A/C NOT FOR ALL (1) On the center pedestal, on the ENG panel 115VU:
(a) Put a WARNING NOTICE(S) to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2).
B. Get Access
(1) Open the fan cowl doors: (Ref. AMM TASK 71-13-00-010-040)
(2) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(3) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(4) Put the ACCESS PLATFORM 1M(3 FT) in position.
Subtask 72-23-00-040-063-A ** ON A/C NOT FOR ALL Subtask 72-23-00-010-096-A ** ON A/C NOT FOR ALL (1) Open the fan cowl doors: (Ref. AMM TASK 71-13-00-010-040)
(2) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(3) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(4) Put the ACCESS PLATFORM 1M(3 FT) in position.
D. Open the thrust reverser cowl doors: (Ref. AMM TASK 78-36-00-010-040)
(1) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(2) FOR [1000EM2] (ENGINE-2)
461AL 462AR
4. Procedure(1) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(2) FOR [1000EM2] (ENGINE-2)
461AL 462AR
Subtask 72-23-00-020-063-A ** ON A/C NOT FOR ALL
A. Removal of the fan duct panels.
(2) Unscrew and remove the retaining bushings (170) from the screws (150).
(3) Remove the washers (180) from the screws (150).
CAUTION:
DURING REMOVAL OF FAN DUCT PANELS, DO NOT FULLY REMOVE CAPTIVE SCREWS FROM PANEL. THESE SCREWS ARE HELD IN PLACE BY A RETAINING BUSHING ON THE BACK SIDE OF THE PANELS WHICH MAY FALL INTO THE VBV CAVITY IF SCREWS ARE FULLY REMOVED. AFTER REMOVAL OF EACH PANEL, IT MUST BE VERIFIED THAT BUSHINGS ARE STILL WITH PANEL AND NOT IN VBV CAVITY.
(1) Loosen the captive screws (150), and remove the panel (160). (2) Unscrew and remove the retaining bushings (170) from the screws (150).
(3) Remove the washers (180) from the screws (150).