DOC AIRBUS | AMM A320FInspection of the LP Compressor Inlet Guide Vane Assembly [IAE]
TASK 72-32-91-200-010-B
Inspection of the LP Compressor Inlet Guide Vane Assembly
1. Reason for the Job
This task gives the procedure for the inspection of the LP compressor inlet guide vanes.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Referenced Information
3. Job Set-up
Subtask 72-32-91-941-060-A ** ON A/C NOT FOR ALL
Subtask 72-32-91-210-054-A ** ON A/C NOT FOR ALL
Subtask 72-32-91-942-055-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 02:46:00 UTC
Inspection of the LP Compressor Inlet Guide Vane Assembly
1. Reason for the Job
This task gives the procedure for the inspection of the LP compressor inlet guide vanes.
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 | MAT - WORK |
| No specific | AR | WARNING NOTICE(S) |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 72-32-91-300-010-B | Repair of the LP Compressor Inlet Guide Vanes - VRS1850 |
LP Compressor Inlet Guide VanesSubtask 72-32-91-941-060-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 72-32-91-941-061-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. Put the Ground Support Equipment in to position
(1) Put the ACCESS PLATFORM 1M(3 FT) in position to give access to the engine.
(2) Put the MAT - WORK in position in the air intake cowl.
4. Procedure(1) Put the ACCESS PLATFORM 1M(3 FT) in position to give access to the engine.
(2) Put the MAT - WORK in position in the air intake cowl.
NOTE: Make sure that the red warning pennants of the workmat can be seen external of the aircraft.
NOTE: Make sure the workmat has sufficient dimensions to give full protection to the lower half of the intake cowl surface.
Subtask 72-32-91-210-054-A ** ON A/C NOT FOR ALL
A. Examine the LP Compressor Inlet Guide Vanes Assembly.
(1) Examine the areas A and C of the inlet guide vanes for cracks, nicks, scratches and dents.
(a) If they are cracked, reject them.
(b) If they have nicks or scratches up to 0.010 in. (0.25 mm) in depth, accept them.
(c) If they have nicks or scratches that are more than the above limits, repair them (Ref. AMM TASK 72-32-91-300-010).
(d) If they have dents up to 0.030 in. (0.76 mm) in depth, accept them.
(e) If they have dents that are more than the above limits, reject them.
(2) Examine the area B of the inlet guide vanes for cracks, nicks, scratches and dents.
(a) If they are cracked, reject them.
(b) If they have nicks, scratches or dents up to 0.004 in. (0.1 mm) accept them.
(c) If they have nicks or scratches that are more than the above limits, repair them (Ref. AMM TASK 72-32-91-300-010).
(d) If they have dents up to 0.004 in. (0.10 mm), accept them.
(e) If they have dents that are more than the above limits, repair them (Ref. AMM TASK 72-32-91-300-010).
(3) Examine the external surface of the inner ring for cracks, nicks, scratches and dents.
(a) If they are cracked, reject them.
(b) If they have nicks, scratches or dents up to 0.020 in. (0.5 mm) in depth, accept them.
(c) If they have nicks, scratches or dents that are more than the above limits, reject them (Ref. AMM TASK 72-32-91-300-010).
5. Close-up(1) Examine the areas A and C of the inlet guide vanes for cracks, nicks, scratches and dents.
(a) If they are cracked, reject them.
(b) If they have nicks or scratches up to 0.010 in. (0.25 mm) in depth, accept them.
(c) If they have nicks or scratches that are more than the above limits, repair them (Ref. AMM TASK 72-32-91-300-010).
(d) If they have dents up to 0.030 in. (0.76 mm) in depth, accept them.
(e) If they have dents that are more than the above limits, reject them.
(2) Examine the area B of the inlet guide vanes for cracks, nicks, scratches and dents.
(a) If they are cracked, reject them.
(b) If they have nicks, scratches or dents up to 0.004 in. (0.1 mm) accept them.
(c) If they have nicks or scratches that are more than the above limits, repair them (Ref. AMM TASK 72-32-91-300-010).
(d) If they have dents up to 0.004 in. (0.10 mm), accept them.
(e) If they have dents that are more than the above limits, repair them (Ref. AMM TASK 72-32-91-300-010).
(3) Examine the external surface of the inner ring for cracks, nicks, scratches and dents.
(a) If they are cracked, reject them.
(b) If they have nicks, scratches or dents up to 0.020 in. (0.5 mm) in depth, accept them.
(c) If they have nicks, scratches or dents that are more than the above limits, reject them (Ref. AMM TASK 72-32-91-300-010).
Subtask 72-32-91-942-055-A ** ON A/C NOT FOR ALL
A. Remove the Ground Support Equipment
(1) Remove the workmat from the air intake cowl.
(2) Remove the access platform(s).
(3) Remove the WARNING NOTICE(S).
(1) Remove the workmat from the air intake cowl.
(2) Remove the access platform(s).
(3) Remove the WARNING NOTICE(S).