DOC AIRBUS | AMM A320FRemoval of the Low Pressure Compressor (LPC) Stage 1 Inlet Guide Vane (IGV) [CFML]
TASK 72-21-21-000-801-A
Removal of the Low Pressure Compressor (LPC) Stage 1 Inlet Guide Vane (IGV)
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 72-21-21-941-050-A
Subtask 72-21-21-020-050-A
[Rev.10 from 2021]
2026.04.01 13:03:49 UTC
Removal of the Low Pressure Compressor (LPC) Stage 1 Inlet Guide Vane (IGV)
WARNING:
BE CAREFUL WHEN YOU DO WORK ON THE ENGINE PARTS AFTER THE ENGINE SHUTDOWN. USE APPLICABLE THERMAL GLOVES. THE ENGINE PARTS CAN STAY HOT FOR ONE HOUR AFTER SHUTDOWN AND CAN BURN YOU.
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | ACCESS PLATFORM 1M(3 FT) |
| No specific | AR | WARNING NOTICE(S) |
| 956A6880G01 | 1 | SCREW SET, DISINSTALL - VANE LOW PRESSURE COMPRESSOR |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 210 | CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD |
| 400 | POWER PLANT, NACELLES AND PYLONS |
| FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1) | |
| 437AL, 438AR | |
| FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2) | |
| 447AL, 448AR | |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 71-13-00-010-803-A | Opening of the Fan Cowl Doors |
| TASK 72-21-02-000-802-A | Removal of the Flow Splitter |
LPC Stage 1 IGVSubtask 72-21-21-941-050-A
A. Safety Precautions
(1) On the center pedestal, on ENG panel 115VU:
(a) Make sure that the ENG/MODE selector switch is in the NORM position.
(b) Make sure that the ENG/MASTER 1(2) control switch was in the OFF position not less than five minutes before you do this procedure.
(c) Put WARNING NOTICE(S) in position to tell persons not to operate:
(a) Make sure that the ON legend of the FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) in position to tell persons not to energize FADEC 1(2).
Subtask 72-21-21-010-050-A (1) On the center pedestal, on ENG panel 115VU:
(a) Make sure that the ENG/MODE selector switch is in the NORM position.
(b) Make sure that the ENG/MASTER 1(2) control switch was in the OFF position not less than five minutes before you do this procedure.
(c) Put WARNING NOTICE(S) in position to tell persons not to operate:
- The ENG/MODE selector switch,
- The ENG/MASTER 1(2) control switch.
(a) Make sure that the ON legend of the FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) in position to tell persons not to energize FADEC 1(2).
B. Get Access
(1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-803):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR
(2) Put an ACCESS PLATFORM 1M(3 FT) in position.
4. Procedure(1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-803):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR
(2) Put an ACCESS PLATFORM 1M(3 FT) in position.
Subtask 72-21-21-020-050-A
A. Removal of the LPC Stage 1 IGV
(1) POST SB 72-0080
Remove the ring rotating spacer (Ref. AMM D/O 72-21-25-00).
END OF POST SB 72-0080
(2) Remove the flow splitter (2) (Ref. AMM TASK 72-21-02-000-802).
(3) Loosen the nuts (5).
(4) Remove the bolts (4) that attach the LPC stage 1 IGV (1) to the stage 2 booster vane assembly (3).
(5) Remove the LPC stage 1 IGV (1) from the stage 2 booster vane assembly (3) using the 956A6880G01 SCREW SET, DISINSTALL - VANE LOW PRESSURE COMPRESSOR.
(1) POST SB 72-0080
Remove the ring rotating spacer (Ref. AMM D/O 72-21-25-00).
END OF POST SB 72-0080
(2) Remove the flow splitter (2) (Ref. AMM TASK 72-21-02-000-802).
(3) Loosen the nuts (5).
(4) Remove the bolts (4) that attach the LPC stage 1 IGV (1) to the stage 2 booster vane assembly (3).
(5) Remove the LPC stage 1 IGV (1) from the stage 2 booster vane assembly (3) using the 956A6880G01 SCREW SET, DISINSTALL - VANE LOW PRESSURE COMPRESSOR.