Cleaning of the LP Compressor Outlet Guide Vanes [IAE]

TASK 72-32-88-100-010-A
Cleaning of the LP Compressor Outlet Guide Vanes

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

FIN: 1000EM1 ** ON A/C NOT FOR ALL
FIN: 1000EM2 ** ON A/C NOT FOR ALL

1. Reason for the Job
This TASK gives the procedure for the cleaning of the LP compressor outlet guide vane assembly.
This TASK can contribute to fuel savings.
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)

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.V01-124)	Isopropyl Alcohol, Technical grade
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
FOR [1000EM1] (ENGINE-1)
437AL, 438AR, 451AL, 452AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR, 461AL, 462AR

D. Referenced Information

REFERENCE	DESIGNATION
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

3. Job Set-up
Subtask 72-32-88-941-054-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 72-32-88-010-051-A ** ON A/C NOT FOR ALL

B. Open the cowls
(1) Open the fan cowls (Ref. AMM TASK 71-13-00-010-010):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR.
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR.

Subtask 72-32-88-040-054-A ** ON A/C NOT FOR ALL

C. Deactivate the thrust reverser.

WARNING: MAKE SURE THAT THE THRUST REVERSER HYDRAULIC CONTROL UNIT (HCU) IS DEACTIVATED BEFORE YOU DO WORK ON OR AROUND THE THRUST REVERSER. IF THE HCU IS NOT DEACTIVATED, THERE IS A RISK OF UNWANTED THRUST REVERSER OPERATION WHICH CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.

(1) Deactivate the thrust reverser hydraulic control unit (HCU) (Ref. AMM TASK 78-30-00-040-012).

Subtask 72-32-88-010-063-A ** ON A/C NOT FOR ALL

D. Open the thrust reverser halves (Ref. AMM TASK 78-32-00-010-010):
(1) FOR [1000EM1] (ENGINE-1)
452AR 451AL.
(2) FOR [1000EM2] (ENGINE-2)
462AR 461AL.

Subtask 72-32-88-941-055-A ** ON A/C NOT FOR ALL

E. Put the support equipment in to position
(1) Put the ACCESS PLATFORM 1M(3 FT) in to position to give access to the engine for the cleaning task.
(2) Put the MAT - WORK in to position in the fan case.

NOTE: Make sure that the red warning pennants of the workmat can be seen external of the aircraft.

NOTE: Make sure the workmat has sufficient dimensions to give full protection to the lower half of the fan case surface.

4. Procedure
Subtask 72-32-88-110-050-A ** ON A/C NOT FOR ALL

A. Clean the fan outlet guide vanes
(1) Enter the fan case and clean the fan outlet guide vanes airfoil surface with a clean Textile-Lint free Cotton - (Material No.14SBA1) made moist with V01-124Isopropyl Alcohol, Technical grade.
(2) Wipe the fan outlet guide vane airfoil surface dry with a clean Textile-Lint free Cotton - (Material No.14SBA1) .
(3) Do again steps (1) and (2) until all the fan outlet guide vanes are clean.

5. Close-up
Subtask 72-32-88-410-051-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) Remove the workmat.
(3) Close the thrust reverser halves (Ref. AMM TASK 78-32-00-410-010):
(4) FOR [1000EM1] (ENGINE-1)
451AL 452AR.
(5) FOR [1000EM2] (ENGINE-2)
461AL 462AR.
(6) Remove the access platform(s).

Subtask 72-32-88-440-052-A ** ON A/C NOT FOR ALL

B. Activate the thrust reverser HCU (Ref. AMM TASK 78-30-00-440-012).

Subtask 72-32-88-410-061-A ** ON A/C NOT FOR ALL

C. Close Access
(1) Close the fan cowls (Ref. AMM TASK 71-13-00-410-010):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR.
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR.
(2) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.01 02:45:57 UTC