DOC AIRBUS | AMM A320FRepair of the LP Compressor Fan Blade Touch Up Coating - VRS1030 [IAE]
TASK 72-31-11-300-014-B
Repair of the LP Compressor Fan Blade Touch Up Coating - VRS1030
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Referenced Information
3. Job Set-up
Subtask 72-31-11-941-066-A ** ON A/C NOT FOR ALL
Subtask 72-31-11-020-053-A ** ON A/C NOT FOR ALL
Subtask 72-31-11-942-064-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 02:44:55 UTC
Repair of the LP Compressor Fan Blade Touch Up Coating - VRS1030
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
1. Reason for the JobSelf explanatory
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 |
|---|---|
| (Material No.V01-076) | Methyl Ethyl Ketone, Technical grade |
| (Material No.V01-124) | Isopropyl Alcohol, Technical grade |
| (Material No.V02-018) | brush |
| (Material No.V10-005) | high load dry lubricant |
| (Material No.V10-106) | bonded lubricant |
| (Material No.14SBA1) | Textile-Lint free Cotton - |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 72-31-11-000-010-B | Removal of the LP Compressor Fan Blades |
| TASK 72-31-11-400-010-C | Installation of the LP Compressor Fan Blades |
LP Compressor Fan BladesSubtask 72-31-11-941-066-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).
(4) Install the support equipment.
(a) Put the ACCESS PLATFORM 1M(3 FT) in position to give access to the engine for the repair.
(b) Put the MAT - WORK in position in the air intake cowl.
4. Procedure(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).
(4) Install the support equipment.
(a) Put the ACCESS PLATFORM 1M(3 FT) in position to give access to the engine for the repair.
(b) 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 that the workmat has sufficient dimensions to give full protection to the lower half of the air intake cowl surface.
Subtask 72-31-11-020-053-A ** ON A/C NOT FOR ALL
A. Remove the LP compressor fan blade from the stage 1 fan disk assembly (Ref. AMM TASK 72-31-11-000-010).
Subtask 72-31-11-110-058-A ** ON A/C NOT FOR ALL B. Clean the Missing Coat Area on the Dovetail Pressure Surface of the Fan Blade
V01-076 Methyl Ethyl Ketone, Technical grade V01-124 Isopropyl Alcohol, Technical grade
Subtask 72-31-11-350-066-A ** ON A/C NOT FOR ALL CAUTION:
DO NOT REMOVE ANY EXISTING ROOT LUBRICANT FROM THE BLADE ROOT. LOOSE FLAKES OF EXISTING LUBRICANT MUST ONLY BE REMOVED USING A LINT FREE CLOTH MADE MOIST WITH CLEANING FLUID.
CAUTION:
DO NOT USE ABRASIVE MEDIUMS TO SMOOTH OR REMOVE EXISTING ROOT LUBRICANT. METCO 58 COATING LOSES ITS ABILITY TO RETAIN LUBRICANT IF SMOOTHED WITH SCOTCHBRITE OR OTHER ABRASIVE MATERIALS.
(1) Use a clean Textile-Lint free Cotton - (Material No.14SBA1) made moist with C. Apply the Lubricant on the Dovetail Pressure Surface of the Fan Blade
(1) Touch up the lubricant to the missing coat area with a clean brush (Material No.V02-018) , use high load dry lubricant (Material No.V10-005) or bonded lubricant (Material No.V10-106) .
(2) Apply three coats of the lubricant to a total thickness of between 0.001 in. and 0.002 in. (0.025 mm and 0.050 mm) to surface AD.
(3) Air dry as follows:
(a) If high load dry lubricant (Material No.V10-005) was used, dry for 20 minutes.
(b) If bonded lubricant (Material No.V10-106) was used, dry for 30 minutes.
Subtask 72-31-11-210-063-A ** ON A/C NOT FOR ALL (1) Touch up the lubricant to the missing coat area with a clean brush (Material No.V02-018) , use high load dry lubricant (Material No.V10-005) or bonded lubricant (Material No.V10-106) .
(2) Apply three coats of the lubricant to a total thickness of between 0.001 in. and 0.002 in. (0.025 mm and 0.050 mm) to surface AD.
(3) Air dry as follows:
(a) If high load dry lubricant (Material No.V10-005) was used, dry for 20 minutes.
(b) If bonded lubricant (Material No.V10-106) was used, dry for 30 minutes.
D. Do a Visual Check of the Dry Film Lubricant on the Dovetail of the Fan Blade
(1) The layer must be smooth and bonded correctly to the surface of the part.
(2) The layer must not have any cracks or flakes.
Subtask 72-31-11-420-055-A ** ON A/C NOT FOR ALL (1) The layer must be smooth and bonded correctly to the surface of the part.
(2) The layer must not have any cracks or flakes.
E. Install the LP compressor fan blade to the stage 1 fan disk assembly (Ref. AMM TASK 72-31-11-400-010).
5. Close-upSubtask 72-31-11-942-064-A ** ON A/C NOT FOR ALL
A. Remove the Support Equipment
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the workmat from the air intake cowl.
(3) Remove the access platform(s).
(4) Remove the WARNING NOTICE(S).
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the workmat from the air intake cowl.
(3) Remove the access platform(s).
(4) Remove the WARNING NOTICE(S).