DOC AIRBUS | AMM A320FRemoval of the Flame Arrestor and of the Flange Assembly [CFMI]
TASK 72-56-00-000-003-A
Removal of the Flame Arrestor and of the Flange Assembly
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Referenced Information
3. Job Set-up
Subtask 72-56-00-941-057-A ** ON A/C NOT FOR ALL
Subtask 72-56-00-020-056-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 12:59:19 UTC
Removal of the Flame Arrestor and of the Flange Assembly
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 | WARNING NOTICE(S) |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 78-11-11-000-040-A | Removal of the Core Nozzle Assembly |
| TASK 78-11-12-000-040-A | Removal of the Centerbody |
Removal/Installation of the Flame Arrestor and Flange AssemblySubtask 72-56-00-941-057-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 72-56-00-010-061-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) Remove the core nozzle (Ref. AMM TASK 78-11-11-000-040).
(2) Remove the center body (Ref. AMM TASK 78-11-12-000-040).
4. Procedure(1) Remove the core nozzle (Ref. AMM TASK 78-11-11-000-040).
(2) Remove the center body (Ref. AMM TASK 78-11-12-000-040).
Subtask 72-56-00-020-056-A ** ON A/C NOT FOR ALL
A. Removal of the Flame Arrestor
PRE SB CFMI 72-447
(1) Remove the six bolts (20) which attach the flame arrestor (30) to the oil inlet cover through the flange assembly (90).
POST SB CFMI 72-447
(2) Remove the six bolts (20) which attach the flame arrestor (10) or (30) to the oil inlet cover through the flange assembly (90).
END OF SB CFMI 72-447
Subtask 72-56-00-020-057-A ** ON A/C NOT FOR ALL PRE SB CFMI 72-447
(1) Remove the six bolts (20) which attach the flame arrestor (30) to the oil inlet cover through the flange assembly (90).
POST SB CFMI 72-447
(2) Remove the six bolts (20) which attach the flame arrestor (10) or (30) to the oil inlet cover through the flange assembly (90).
END OF SB CFMI 72-447
B. Removal of the Flange Assembly
(1) Remove the three bolts (40) and washers (50) which attach the sleeve (60) to the flange assembly (90).
(2) Remove the sleeve (60).
(3) Remove the thirty two bolts (70) which attach the flange assembly (90) to the LPT frame.
(4) Remove the flange assembly (90) from the LPT frame.
PRE SB CFMI 72-259
(5) Not applicable
POST SB CFMI 72-259
(6) Remove and discard the gasket seal (80).
END of SB CFMI 72-259
(1) Remove the three bolts (40) and washers (50) which attach the sleeve (60) to the flange assembly (90).
(2) Remove the sleeve (60).
(3) Remove the thirty two bolts (70) which attach the flange assembly (90) to the LPT frame.
(4) Remove the flange assembly (90) from the LPT frame.
PRE SB CFMI 72-259
(5) Not applicable
NOTE: PRE SB CFMI 72-259, engines do not have gasket seal.
POST SB CFMI 72-259
(6) Remove and discard the gasket seal (80).
END of SB CFMI 72-259