DOC AIRBUS | AMM A320FRepair Damaged Helicoil Insert(s) or Damaged Thinwall Self Lock Inserts in the HP Compressor, Rear Outer Case Assembly, By Replacement-VRS6637. [IAE]
TASK 72-41-23-300-010-A
Repair Damaged Helicoil Insert(s) or Damaged Thinwall Self Lock Inserts in the HP Compressor, Rear Outer Case Assembly, By Replacement-VRS6637.
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 72-41-23-941-050-A ** ON A/C NOT FOR ALL
Subtask 72-41-23-350-058-A ** ON A/C NOT FOR ALL
Subtask 72-41-23-410-050-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 13:00:52 UTC
Repair Damaged Helicoil Insert(s) or Damaged Thinwall Self Lock Inserts in the HP Compressor, Rear Outer Case Assembly, By Replacement-VRS6637.
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 2M (6 FT) - ADJUSTABLE |
| 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 70-35-08-300-010-A | Install and Repair Wire Thread Inserts |
| TASK 70-35-26-300-010-A | Replace Damaged Thinwall Self Lock Inserts |
| TASK 71-13-00-010-010-A | Opening of the Fan Cowls 437AL(447AL),438AR(448AR) |
| TASK 71-13-00-410-010-A | Closing of the Fan Cowls 437AL(447AL),438AR(448AR) |
| TASK 78-30-00-040-012-A | Deactivation of the Thrust Reverser Hydraulic Control Unit (HCU) for Ground Maintenance |
| TASK 78-30-00-440-012-A | Re-activation of the Thrust Reverser Hydraulic Control Unit (HCU) after Ground Maintenance |
| TASK 78-32-00-010-010-A | Opening of the Thrust Reverser Halves |
| TASK 78-32-00-410-010-A | Closing of the Thrust Reverser Halves |
Repair detailsSubtask 72-41-23-941-050-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 72-41-23-010-050-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 cowls (Ref. AMM TASK 71-13-00-010-010):
(2) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(3) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(4) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.
Subtask 72-41-23-040-050-A ** ON A/C NOT FOR ALL Subtask 72-41-23-010-051-A ** ON A/C NOT FOR ALL (1) Open the fan cowls (Ref. AMM TASK 71-13-00-010-010):
(2) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(3) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(4) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.
D. Open the thrust reverser halves (Ref. AMM TASK 78-32-00-010-010):
(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 72-41-23-350-058-A ** ON A/C NOT FOR ALL
A. Remove the Damaged Helicoil Insert(s)
(1) Remove the damaged helicoil insert(s) (Ref. AMM TASK 70-35-08-300-010).
Subtask 72-41-23-350-059-A ** ON A/C NOT FOR ALL (1) Remove the damaged helicoil insert(s) (Ref. AMM TASK 70-35-08-300-010).
B. Remove the Damaged Thinwall Insert(s)
(1) Remove the damaged thinwall insert(s) (Ref. AMM TASK 70-35-26-300-010).
Subtask 72-41-23-350-060-A ** ON A/C NOT FOR ALL (1) Remove the damaged thinwall insert(s) (Ref. AMM TASK 70-35-26-300-010).
C. Remove the Damaged Thinwall Insert(s)
(1) Remove the damaged thinwall insert(s) (Ref. AMM TASK 70-35-26-300-010).
Subtask 72-41-23-350-061-A ** ON A/C NOT FOR ALL (1) Remove the damaged thinwall insert(s) (Ref. AMM TASK 70-35-26-300-010).
D. Install the Helicoil Insert(s)
(a) Use AGS3732 insert, 02-432, 90 off and/or AGS3733 insert, 02-433, 20 off, as necessary and Standard Workshop Equipment.
Subtask 72-41-23-350-062-A ** ON A/C NOT FOR ALL NOTE: Make sure the proper insert goes in the correct location for that insert type. Helicoil inserts are not interchangeable with thinwall inserts used on applicable case part number.
(1) Install the helicoil insert(s) (Ref. AMM TASK 70-35-08-300-010). (a) Use AGS3732 insert, 02-432, 90 off and/or AGS3733 insert, 02-433, 20 off, as necessary and Standard Workshop Equipment.
E. Install the Thinwall Insert(s)
(a) Use AS52761 insert, 02-432, 80 off and/or AS52762 insert, 02-433, 20 off, as necessary and Standard Workshop Equipment.
Subtask 72-41-23-350-063-A ** ON A/C NOT FOR ALL NOTE: Make sure the proper insert goes in the correct location for that insert type. Helicoil inserts are not interchangeable with thinwall inserts used on applicable case part number.
(1) Install the thinwall insert(s) (Ref. AMM TASK 70-35-26-300-010). (a) Use AS52761 insert, 02-432, 80 off and/or AS52762 insert, 02-433, 20 off, as necessary and Standard Workshop Equipment.
F. Install the Thinwall Insert(s)
(a) Use AS52761 insert, 02-432, 132 off and/or AS52762 insert, 02-433, 20 off, as necessary and Standard Workshop Equipment.
Subtask 72-41-23-210-050-A ** ON A/C NOT FOR ALL NOTE: Make sure the proper insert goes in the correct location for that insert type. Helicoil inserts are not interchangeable with thinwall inserts used on applicable case part number.
(1) Install the thinwall insert(s) (Ref. AMM TASK 70-35-26-300-010). (a) Use AS52761 insert, 02-432, 132 off and/or AS52762 insert, 02-433, 20 off, as necessary and Standard Workshop Equipment.
G. Examine the Helicoil Insert(s)
(1) Examine the helicoil insert(s) (Ref. AMM TASK 70-35-08-300-010).
Subtask 72-41-23-210-051-A ** ON A/C NOT FOR ALL (1) Examine the helicoil insert(s) (Ref. AMM TASK 70-35-08-300-010).
H. Examine the Thinwall Insert(s)
(1) Examine the thinwall insert(s) (Ref. AMM TASK 70-35-26-300-010).
Subtask 72-41-23-210-052-A ** ON A/C NOT FOR ALL (1) Examine the thinwall insert(s) (Ref. AMM TASK 70-35-26-300-010).
I. Examine the Thinwall Insert(s)
(1) Examine the thinwall insert(s) (Ref. AMM TASK 70-35-26-300-010).
5. Close-up(1) Examine the thinwall insert(s) (Ref. AMM TASK 70-35-26-300-010).
Subtask 72-41-23-410-050-A ** ON A/C NOT FOR ALL
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the thrust reverser halves (Ref. AMM TASK 78-32-00-410-010):
(3) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(4) FOR [1000EM2] (ENGINE-2)
461AL 462AR
Subtask 72-41-23-440-050-A ** ON A/C NOT FOR ALL Subtask 72-41-23-410-051-A ** ON A/C NOT FOR ALL (1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the thrust reverser halves (Ref. AMM TASK 78-32-00-410-010):
(3) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(4) FOR [1000EM2] (ENGINE-2)
461AL 462AR