DOC AIRBUS | AMM A320FFront Spinner - Blending and Anodizing Spot Touch-up on Front Spinner Holes [CFML]
TASK 72-21-40-300-801-A
Front Spinner - Blending and Anodizing Spot Touch-up on Front Spinner Holes
This repair procedure gives instructions to blend and to do spot touch-up of anodizing on the front spinner holes.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Referenced Information
3. Job Set-up
Subtask 72-21-40-941-053-A
Subtask 72-21-40-220-050-A
Subtask 72-21-40-942-051-A
[Rev.10 from 2021]
2026.04.01 02:51:53 UTC
Front Spinner - Blending and Anodizing Spot Touch-up on Front Spinner Holes
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 blend and to do spot touch-up of anodizing on the front spinner holes.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | ABRASIVE STONE |
| No specific | 1 | FILE - FINE |
| No specific | AR | WARNING NOTICE(S) |
| 98N7160H003-000 | 1 | INLET PROTECTIVE RUG |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.CP1039) | acetone |
| (Material No.CP1040) | methyl ethyl ketone |
| (Material No.CP1041) | isopropyl alcohol |
| (Material No.CP2721) | abrasive cloth, silicon carbide |
| (Material No.14SBA1) | Textile-Lint free Cotton - |
| No specific | S1096 aluminum alloys etchant |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 210 | CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD |
| 400 | POWER PLANT, NACELLES AND PYLONS |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 72-21-40-000-801-A | Removal of the Front Spinner |
| TASK 72-21-40-400-801-A | Installation of the Front Spinner |
Blending and Anodizing Spot Touch-up on Front Spinner HolesSubtask 72-21-40-941-053-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).
(3) Install the 98N7160H003-000 INLET PROTECTIVE RUG.
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).
(3) Install the 98N7160H003-000 INLET PROTECTIVE RUG.
Subtask 72-21-40-220-050-A
A. Dimensional Information
Table 801 - Dimensional Information
Subtask 72-21-40-210-051-A Table 801 - Dimensional Information
| Description | Minimum In-Process Dimension | Maximum In-Process Dimension | Minimum Finish Dimension | Maximum Finish Dimension | Reference Dimension |
|---|---|---|---|---|---|
| Dim A | - | - | - | 0.7 mm (0.028 in.) | - |
| Radius B | - | - | 5 mm (0.20 in.) | - | - |
| Radius C | - | - | 5 mm (0.20 in.) | - | - |
| Dia. E | - | - | - | - | 16 mm (0.63 in.) - 16.4 mm (0.646 in.) |
B. Do the visual inspection:
(1) If an amount of anodizing is missing and if you do not need to blend, do the spot touch-up of the film oxide coating. Refer to condition one (Para. 4.C.).
(2) If you need to blend in the limits given in Table 801, refer to condition two (Para. 4.D.).
(3) If you cannot blend in the limits given in Table 801, replace the part (Ref. AMM TASK 72-21-40-000-801) and (Ref. AMM TASK 72-21-40-400-801).
Subtask 72-21-40-320-050-A (1) If an amount of anodizing is missing and if you do not need to blend, do the spot touch-up of the film oxide coating. Refer to condition one (Para. 4.C.).
(2) If you need to blend in the limits given in Table 801, refer to condition two (Para. 4.D.).
(3) If you cannot blend in the limits given in Table 801, replace the part (Ref. AMM TASK 72-21-40-000-801) and (Ref. AMM TASK 72-21-40-400-801).
C. (1) Local anodizing touch-up.
(a) Do the spot touch-up of the full hard anodizing of areas where anodizing is missingSPM 706214 .
Subtask 72-21-40-320-051-A (a) Do the spot touch-up of the full hard anodizing of areas where anodizing is missing
D. Condition Two: Remove the local surface deviation from Area A as follows:
(a) (b) Do the finishing as follows:
CP2721 abrasive cloth, silicon carbide
(2) Remove the grease from the part with a clean Textile-Lint free Cotton - (Material No.14SBA1) soaked in acetone (Material No.CP1039) , methyl ethyl ketone (Material No.CP1040) or isopropyl alcohol (Material No.CP1041) .
(3) Do the Fluorescent Penetrant Inspection (FPI).
(a) Locally etch all the blended areas with S1096 aluminum alloys etchantSPM 705311 .
(b) Do the FPISPM 703213 or SPM 703223 .
1 No cracks permitted.
(4) Do the local anodizing touch-up.
(a) Refer to condition one (Para. 4.C.).
5. Close-upCAUTION:
DO NOT BLEND RADIUS "D". IF YOU DO NOT OBEY THIS INSTRUCTION, DAMAGE CAN OCCUR.
(1) Remove the local surface deviation. (a) (b) Do the finishing as follows:
CAUTION:
DURING THE POLISHING OPERATION, MAKE SURE THAT YOU REMOVE ONLY THE NECESSARY QUANTITY OF PARENT METAL.
1 Do the finishing with strips of (2) Remove the grease from the part with a clean Textile-Lint free Cotton - (Material No.14SBA1) soaked in acetone (Material No.CP1039) , methyl ethyl ketone (Material No.CP1040) or isopropyl alcohol (Material No.CP1041) .
(3) Do the Fluorescent Penetrant Inspection (FPI).
(a) Locally etch all the blended areas with S1096 aluminum alloys etchant
(b) Do the FPI
1 No cracks permitted.
(4) Do the local anodizing touch-up.
(a) Refer to condition one (Para. 4.C.).
Subtask 72-21-40-942-051-A
A. Put the aircraft back to its initial configuration.
(1) Remove the 98N7160H003-000 INLET PROTECTIVE RUG.
(2) Make sure that the work area is clean and clear of tools and other items.
(3) Remove the WARNING NOTICE(S).
(1) Remove the 98N7160H003-000 INLET PROTECTIVE RUG.
(2) Make sure that the work area is clean and clear of tools and other items.
(3) Remove the WARNING NOTICE(S).