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

TASK 72-32-88-000-010-B
Removal 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
Self Explanatory.
This task is for V2500-A5 engines.
There are two alternative methods to get access to the FEGVs:
Method 1: You must remove the inlet cone, the fan blades and the splitter fairing for access to the FEGVs from front of the fan case.
Method 2: You must move the rear fairing rearward for access to the FEGVs from rear of the fan case.
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	COVER - SHEET
No specific	AR	MAT - WORK
No specific	AR	WARNING NOTICE(S)
IAE1J12187	1	COVER-PROTECTION LPC BLEED DUCT

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.V06-069)	marker

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 72-31-11-000-010-B	Removal of the LP Compressor Fan Blades
TASK 72-38-11-000-010-A	Removal of the Inlet Cone
TASK 78-30-00-040-012-A	Deactivation of the Thrust Reverser Hydraulic Control Unit (HCU) for Ground Maintenance
TASK 78-32-00-010-010-A	Opening of the Thrust Reverser Halves
Fan Exit Guide Vanes (FEGV)
Front Fairing
Protection Cover
Illustration of the Rear Fairing
FEGV Attaching Parts

3. Job Set-up
Subtask 72-32-88-941-058-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 72-32-88-010-057-A ** ON A/C NOT FOR ALL

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

Subtask 72-32-88-040-051-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 72-32-88-010-060-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)
451AL 452AR.
(2) FOR [1000EM2] (ENGINE-2)
461AL 462AR.

Subtask 72-32-88-941-059-A ** ON A/C NOT FOR ALL

E. Method 1: Put the ground support equipment in position
(1) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position to give access to the engine intake and the FEGV rear end.
(2) Put the MAT - WORK in position in the intake cowl.

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

NOTE: Make sure that the workmat has sufficient dimensions to give full protection to the lower half of the intake cowl.

Subtask 72-32-88-941-064-A ** ON A/C NOT FOR ALL

F. Method 2: Put the ground support equipment in position.
(1) Put the access platform in position to give access to the FEGV rear end.

4. Procedure
Subtask 72-32-88-010-058-A ** ON A/C NOT FOR ALL

A. Remove the inlet cone and fan blades (Method 1).
(1) Remove the inlet cone (2) (Ref. AMM TASK 72-38-11-000-010).

Fan Exit Guide Vanes (FEGV) ** ON A/C NOT FOR ALL

(2) Remove the 22 stage 1 fan blades (4) and annulus fillers (3).
(a) Use the marker (Material No.V06-069) to make a temporary mark on the blades, the fillers retaining ring to indicate the initial positions of the blades and the fillers.
1 As an alternative to the marker (Material No.V06-069) , it is permitted to use a marker that is specified in IAE V2500 Standard Practices Manual (SPP-V2500-1IA) 70-09-01-400-501 - Procedure To Make Temporary Marks On Components And Assemblies.
(b) Remove the blades and the fillers (Ref. AMM TASK 72-31-11-000-010).

Subtask 72-32-88-620-051-A ** ON A/C NOT FOR ALL

B. Install an applicable COVER - SHEET on to the stage 1 fan disk (1) to prevent unwanted materials and damage to the disk.

Fan Exit Guide Vanes (FEGV) ** ON A/C NOT FOR ALL

Subtask 72-32-88-010-059-A ** ON A/C NOT FOR ALL

C. Remove the splitter fairing (12).

Front Fairing ** ON A/C NOT FOR ALL

(1) Remove the screws (11) which attach the splitter fairing to the bracket.
(2) Remove the splitter fairing.

Subtask 72-32-88-620-052-A ** ON A/C NOT FOR ALL

D. Install the IAE1J12187 COVER-PROTECTION LPC BLEED DUCT or equivalent around the bleed duct not to let unwanted material fall into the bleed duct.

Protection Cover ** ON A/C NOT FOR ALL

(1) Put the canvas of the protection cover on to the upper half of the bleed duct.
(2) Engage the hooks of the protection cover with the rings at the bottom position of the bleed duct to safety the protection cover.

Subtask 72-32-88-010-068-A ** ON A/C NOT FOR ALL

CAUTION: CAREFULLY REMOVE 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.

E. Move the rear fairing rearward (Method 2).
Pre SBE 72-0155

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

(1) Remove the 18 screws (41) which attach the rear fairing (42) to the LP compressor bleed duct.

NOTE: Do not remove the sealant in the hole position N°6 and 16 in the rear fairing.

(2) Move the rear fairing rearward fully.

Subtask 72-32-88-010-069-A ** ON A/C NOT FOR ALL

F. Move the rear fairing rearward.
SBE 72-0155: A new LPC bleed duct with improved durability features.

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

(1) Remove the 20 screws (41) which attach the rear fairing (42) to the LP compressor bledd duct.
(2) Move the rear fairing rearward fully.
End of SBE 72-0155.

Subtask 72-32-88-869-050-A ** ON A/C NOT FOR ALL

G. Identify the replacement FEGVs.
(1) Make sure of locations of the replacement FEGVs.

Subtask 72-32-88-020-054-A ** ON A/C NOT FOR ALL

H. Remove the front liner panels (21) which are attached to the replacement FEGVs

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

(1) Remove the screws (22) and the bolts (23) which attach the front liner panel to the fan case.
(2) Remove the front liner panel from the fan case.

Subtask 72-32-88-020-051-A ** ON A/C NOT FOR ALL

I. Remove the replacement FEGVs (29).

Pre SBE 70-0377

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

(1) Remove the two bolts (26) and the washers (24) and (25) from the inner platform of each FEGV.
(2) Remove the bolt (27) and the washer (28) that attach each FEGV to the fan case. Remove the FEGVs.

Subtask 72-32-88-020-055-A ** ON A/C NOT FOR ALL

J. Remove the replacement FEGVs (29).

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

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

(1) Remove the two bolts (26) and the washers (24) and (25) from the inner platform of each FEGV.
(2) Remove the bolt (30) that attaches each FEGV to the fan case. Remove the FEGVs.
End of SBE 70-0377

[Rev.10 from 2021] 2026.04.01 02:45:53 UTC