Installation of the Fan Exit Guide Vanes (FEGVs) [IAE]

TASK 72-32-88-400-010-B
Installation of the Fan Exit Guide Vanes (FEGVs)

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 is for V2500-A5 engines.
There are two alternative methods to return the removed parts to the initial positions:
Method 1: If you removed the inlet cone, the fan blades, the splitter fairing and the front liner panels for access to the FEGVs, you must use Method 1.
Method 2: If you removed the front liner panels and opened the rear fairing, you must use the Method 2.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
No specific	AR	MAT - WORK
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 45 and 35 lbf.in (0.51 and 0.40 m.daN )
No specific	Torque wrench: range to between 45 and 36 lbf.in (0.51 and 0.41 m.daN )
No specific	Torque wrench: range to between 85 and 75 lbf.in (0.96 and 0.85 m.daN )
No specific	Torque wrench: range to between 105 and 85 lbf.in (1.19 and 0.96 m.daN )
No specific	Torque wrench: range to between 200 and 160 lbf.in (2.26 and 1.81 m.daN )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.V01-031)	Acetone, Technical grade
(Material No.V01-124)	Isopropyl Alcohol, Technical grade
(Material No.V04-004)	jointing compound
(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, 461AL, 462AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR, 461AL, 462AR

D. Referenced Information

REFERENCE	DESIGNATION
TASK 70-23-11-911-013-A	General Torque Tightening Techniques
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 72-31-11-400-010-C	Installation of the LP Compressor Fan Blades
TASK 72-38-11-400-010-A	Installation of the Inlet Cone
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
FEGV Attaching Parts
Application of Jointing Compound to the Front Fairing
Front Fairing
Protection Cover
Illustration of the Rear Fairing

3. Job Set-up
Subtask 72-32-88-860-051-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) On the center pedestal, on the ENG panel 115VU, make sure that a WARNING NOTICE(S) is in position to tell persons not to start the engine.
(2) On the overhead maintenance panel 50VU, make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off. Make sure that a WARNING NOTICE(S) is in position to tell persons not to energize the FADEC 1(2).
(3) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE and the MAT - WORK are in position.

Subtask 72-32-88-010-062-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Make sure that the fan cowl doors are open: (Ref. AMM TASK 71-13-00-010-010)
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(2) Make sure that the thrust reverser doors are open: (Ref. AMM TASK 78-32-00-010-010)
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(b) FOR [1000EM1] (ENGINE-1)
461AL 462AR

Subtask 72-32-88-040-053-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).

4. Procedure
Subtask 72-32-88-420-051-A ** ON A/C NOT FOR ALL

A. Installation of the Fan Exit Guide Vanes
(1) Install the replacement FEGVs (29).

PRE SBE 70-0377

FEGV Attaching Parts ** ON A/C NOT FOR ALL

(a) Attach each FEGV to the inner face of the fan case with the bolt (27) and the washer (28). Tighten the bolt lightly.

End of PRE SBE 70-0377

POST SBE 70-0377: New fan exit guide vanes with outer platformsof reduced weight material.

(2) Install the replacement FEGVs (29).

FEGV Attaching Parts ** ON A/C NOT FOR ALL

(a) Install each FEGV to the inner face of the fan case with the bolt (30). Tighten the bolt lightly.

End of POST SBE 70-0377

(3) Install the front liner panels (21)

FEGV Attaching Parts ** ON A/C NOT FOR ALL

(a) Install each front liner panel and attach it with the screws (22) and the bolts (23). Tighten the screws and the bolts lightly.
(4) Attach the FEGVs to the LP compressor booster stage

FEGV Attaching Parts ** ON A/C NOT FOR ALL

(a) Install the washers (24) and (25) and the bolts (26). Tighten the bolts lightly.

PRE SBE 70-0377

(5) Tighten the bolts (27), (26) and (23) and the screws (22).
(a) Make sure that all the bolts and the screws are correctly installed. If necessary, adjust the positions of the FEGVs, the plate nuts of the FEGVs and the front liner panels.
(b) TORQUE the bolts (27) to between 105 and 85 lbf.in (1.19 and 0.96 m.daN )

.
(c) TORQUE the bolts (26) to between 200 and 160 lbf.in (2.26 and 1.81 m.daN )

.
(d) TORQUE the bolts (23) to between 105 and 85 lbf.in (1.19 and 0.96 m.daN )

.
(e) TORQUE the screws (22) to between 85 and 75 lbf.in (0.96 and 0.85 m.daN )

.

End of PRE SBE 70-0377

POST SBE 70-0377

(6) Tighten the bolts (30), (26) and (23) and the screws (22).
(a) Make sure that all the bolts and the screws are correctly installed. If necessary, adjust the positions of the FEGVs, the plate nuts of the FEGVs and the front liner panels.
(b) TORQUE the bolts (30) to between 105 and 85 lbf.in (1.19 and 0.96 m.daN )

.
(c) TORQUE the bolts (26) to between 200 and 160 lbf.in (2.26 and 1.81 m.daN )

.
(d) TORQUE the bolts (23) to between 105 and 85 lbf.in (1.19 and 0.96 m.daN )

.
(e) TORQUE the screws (22) to between 85 and 75 lbf.in (0.96 and 0.85 m.daN )

.

End of POST SBE 70-0377

Subtask 72-32-88-420-054-A ** ON A/C NOT FOR ALL

B. Installation of the Splitter Fairing, Fan Blades and the Inlet Cone (Method 1)
(1) Apply jointing compound to the mating face on the splitter fairing (Method 1).

Application of Jointing Compound to the Front Fairing ** ON A/C NOT FOR ALL

(a) Clean the mating faces with a clean Textile-Lint free Cotton - (Material No.14SBA1) made moist with V01-031Acetone, Technical grade or V01-124Isopropyl Alcohol, Technical grade.
(b) Apply jointing compound (Material No.V04-004) to the mating face with a stiff brush.

NOTE: Install the front fairings on to the front brackets and the rear before the jointing compound becomes dry.

(2) Install the splitter fairing (12).

Front Fairing ** ON A/C NOT FOR ALL

(a) Install the splitter fairing to the inlet guide vane and the brackets and attach it with the screws (11).
(b) TORQUE the screws to between 45 and 35 lbf.in (0.51 and 0.40 m.daN )

(Ref. AMM TASK 70-23-11-911-013).
(3) Remove the covers.
(a) Remove the cover sheet from the stage 1 fan disk.
(b) Remove the protection cover, IAE 1J12187 or equivalent from the bleed duct.

Protection Cover ** ON A/C NOT FOR ALL

(4) Install the fan blades and inlet cone:
(a) Install the 22 stage 1 fan blades (4) and the annulus fillers (3) to their initial positions (Ref. AMM TASK 72-31-11-400-010).
(b) Install the inlet cone (2) (Ref. AMM TASK 72-38-11-400-010).
(5) Make sure that the rear fairing is correctly installed as per method 2 that follows.

Subtask 72-32-88-420-053-A ** ON A/C NOT FOR ALL

CAUTION: CAREFULLY INSTALL THE SCREWS NOT TO LET THEM FALL IN THE BLEED AIR PASSAGE IN THE BLEED DUCT. THE SCREWS GO INTO THE HP COMPRESSOR AND BREAK THE BLADES AND THE VANES. IF THE SCREWS FALL IN THE BLEED AIR PASSAGE, YOU MUST DISASSEMBLE THE ENGINE AND REMOVE THE SCREWS.

C. Installation of the Rear Fairing to the Initial Position (Method 2)

PRE SBE 72-0155

(1) Install the rear fairing to the initial position.

Illustration of the Rear Fairing ** ON A/C NOT FOR ALL

(a) Align the through holes in the rear fairing (42) with threaded holes in the bleed duct.
(b) Attach the rear fairing to the bleed duct with the 18 screws (41).

NOTE: Do not install the screws into the holes N°6 and 16.

.

End of PRE SBE 70-0377

POST SBE 72-0155: A new LPC bleed duct with improved durability features.

(2) Install the rear fairing to the initial position.

Illustration of the Rear Fairing ** ON A/C NOT FOR ALL

(a) Align the through holes in the rear fairing (42) with the threaded holes in the bleed duct.
(b) Attach the rear fairing to the bleed duct with the 20 screws (41).
(c) TORQUE the screws to between 45 and 36 lbf.in (0.51 and 0.41 m.daN )

.

End of POST SBE 72-0155

5. Close-up
Subtask 72-32-88-410-059-A ** ON A/C NOT FOR ALL

A. Method 1: Remove the ground support equipments.
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the workmat from the intake cowl.
(3) Remove the access platform(s).

Subtask 72-32-88-410-069-A ** ON A/C NOT FOR ALL

B. Method 2: Remove the ground support equipment
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the access platform(s).

Subtask 72-32-88-410-070-A ** ON A/C NOT FOR ALL

C. Close the thrust reverser halves (Ref. AMM TASK 78-32-00-410-010):
(1) FOR [1000EM1] (ENGINE-1)
451AL 452AR.
(2) FOR [1000EM2] (ENGINE-2)
461AL 462AR.

Subtask 72-32-88-440-051-A ** ON A/C NOT FOR ALL

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

Subtask 72-32-88-410-060-A ** ON A/C NOT FOR ALL

E. 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 13:00:29 UTC