DOC AIRBUS | AMM A320FReplacement of the Self-Locking Shank Nuts on the Platform Front Shroud [CFML]
TASK 72-21-60-300-802-A
Replacement of the Self-Locking Shank Nuts on the Platform Front Shroud
This repair procedure gives instructions to replace the self-locking shank nuts on the platform front shroud.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Expendable Parts
E. Referenced Information
3. Job Set-up
Subtask 72-21-60-941-054-A
Subtask 72-21-60-350-052-A
Subtask 72-21-60-942-054-A
[Rev.10 from 2021]
2026.04.01 13:03:56 UTC
Replacement of the Self-Locking Shank Nuts on the Platform Front Shroud
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.
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
1. Reason for the JobThis repair procedure gives instructions to replace the self-locking shank nuts on the platform front shroud.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | WARNING NOTICE(S) |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.CP1039) | acetone |
| (Material No.CP1040) | methyl ethyl ketone |
| (Material No.CP1041) | isopropyl alcohol |
| (Material No.CP2687) | diestone DLS |
| (Material No.14SBA1) | Textile-Lint free Cotton - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 210 | CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD |
| 400 | POWER PLANT, NACELLES AND PYLONS |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 1 | SELF-LOCKING SHANK NUT | EIPC 72-00-01-54-061 |
| REFERENCE | DESIGNATION |
|---|---|
Replacement of the Self-Locking Shank Nut(s)Subtask 72-21-60-941-054-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 a 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).
4. Procedure(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 a 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).
Subtask 72-21-60-350-052-A
A. Replacement of the Self-Locking Shank Nuts (1) on the Platform Front Shroud
(1) Removal of the self-locking shank nut (1) to repair.
SPM 704251 .
(2) Crimping of the new self-locking shank nuts (1).
(a) Clean the area on which the self-locking shank nut (1) is installed with a Textile-Lint free Cotton - (Material No.14SBA1) moist with acetone (Material No.CP1039) , methyl ethyl ketone (Material No.CP1040) , isopropyl alcohol (Material No.CP1041) or diestone DLS (Material No.CP2687) .
(b) Do a fluorescent-penetrant-inspection of the area on which is installed the self-locking shank nut (1)SPM 703223 . No crack permitted.
(c) Do a visual inspection of the repaired area. No tear, wear, high metal or foreign particles permitted.
(d) Do the dimensional inspection of the DIA B. DIA B must be between 0.3327 in. (8.45 mm) to 0.3366 in. (8.55 mm).
(e) Install the new EIPC 72-00-01-54-061 SELF-LOCKING SHANK NUT (1).SPM 704251 and refer to the instructions below:
1 No crack permitted in the shank after crimping.
5. Close-up(1) Removal of the self-locking shank nut (1) to repair.
CAUTION:
MAKE SURE THAT YOU DO NOT DISTORT THE PART WHEN YOU REMOVE THE SELF-LOCKING SHANK NUT. IF YOU DO NOT OBEY THIS INSTRUCTION, DAMAGE CAN OCCUR.
(a) Remove the self-locking shank nut(s) (1) to repair (2) Crimping of the new self-locking shank nuts (1).
(a) Clean the area on which the self-locking shank nut (1) is installed with a Textile-Lint free Cotton - (Material No.14SBA1) moist with acetone (Material No.CP1039) , methyl ethyl ketone (Material No.CP1040) , isopropyl alcohol (Material No.CP1041) or diestone DLS (Material No.CP2687) .
(b) Do a fluorescent-penetrant-inspection of the area on which is installed the self-locking shank nut (1)
(c) Do a visual inspection of the repaired area. No tear, wear, high metal or foreign particles permitted.
(d) Do the dimensional inspection of the DIA B. DIA B must be between 0.3327 in. (8.45 mm) to 0.3366 in. (8.55 mm).
(e) Install the new EIPC 72-00-01-54-061 SELF-LOCKING SHANK NUT (1).
1 No crack permitted in the shank after crimping.
Subtask 72-21-60-942-054-A
A. Put the aircraft back to its initial configuration.
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the WARNING NOTICE(S).
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the WARNING NOTICE(S).