Cleaning of the Manual-Control Cover of the Accessory Gearbox (AGB) [CFML]
TASK 72-63-03-100-801-A
Cleaning of the Manual-Control Cover of the Accessory Gearbox (AGB)
Self explanatory
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 72-63-03-941-054-A
Subtask 72-63-03-110-050-A
Subtask 72-63-03-410-053-A
[Rev.10 from 2021]
2026.04.01 13:04:38 UTC
Cleaning of the Manual-Control Cover of the Accessory Gearbox (AGB)
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 JobSelf explanatory
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.CP2010) | white spirit |
| (Material No.CP2011) | stoddard solvent |
| (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 |
| FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1) | |
| 437AL, 438AR | |
| FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2) | |
| 447AL, 448AR | |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 71-13-00-010-803-A | Opening of the Fan Cowl Doors |
| TASK 71-13-00-410-803-A | Closing of the Fan Cowl Doors |
| TASK 72-63-03-000-801-A | Removal of the Manual-Control Cover of the Accessory Gearbox (AGB) |
| TASK 72-63-03-400-801-A | Installation of the Manual-Control Cover of the Accessory Gearbox |
Subtask 72-63-03-941-054-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).
Subtask 72-63-03-010-054-A (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).
B. Get Access
(1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-803):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR.
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR.
(2) Remove the AGB manual-control cover (1) from the AGB (Ref. AMM TASK 72-63-03-000-801).
4. Procedure(1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-803):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR.
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR.
(2) Remove the AGB manual-control cover (1) from the AGB (Ref. AMM TASK 72-63-03-000-801).
Subtask 72-63-03-110-050-A
A. Cleaning of the AGB Manual-Control Cover
(a) Remove oil, grease and loose dirt from the AGB manual-control cover (1).
1 Clean the components with Textile-Lint free Cotton - (Material No.14SBA1) using stoddard solvent (Material No.CP2011) or white spirit (Material No.CP2010) .
5. Close-upNOTE: If the engine is exposed to unusual operating conditions, make sure that any sign of defects are correctly written and documented before the parts are sent for cleaning operations.
(1) Clean the AGB manual-control cover (1) as follows: (a) Remove oil, grease and loose dirt from the AGB manual-control cover (1).
1 Clean the components with Textile-Lint free Cotton - (Material No.14SBA1) using stoddard solvent (Material No.CP2011) or white spirit (Material No.CP2010) .
Subtask 72-63-03-410-053-A
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the AGB manual-control cover (1) to the AGB (Ref. AMM TASK 72-63-03-400-801).
(3) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-803):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR.
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR.
(4) Remove the WARNING NOTICE(S).
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the AGB manual-control cover (1) to the AGB (Ref. AMM TASK 72-63-03-400-801).
(3) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-803):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR.
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR.
(4) Remove the WARNING NOTICE(S).
Cleaning of the Manual-Control Cover of the Accessory Gearbox