Removal of the Inlet Cone [IAE]

TASK 72-38-11-000-010-A
Removal of the Inlet Cone

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
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	MAT - WORK
No specific	AR	WARNING NOTICE(S)
IAE1J12020	1	LEVER, PULLER
IAE1J12121	1	LEVER, PULLER
IAE1J12125	1	HAMMER SLIDING

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.V06-069)	marker

C. Referenced Information

REFERENCE	DESIGNATION
Inlet Cone

3. Job Set-up
Subtask 72-38-11-941-051-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 72-38-11-941-052-A ** ON A/C NOT FOR ALL

B. Put the support equipment into position
(1) Put the MAT - WORK in position in the intake cowl.

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 intake cowl surface.

4. Procedure
Subtask 72-38-11-010-050-A ** ON A/C NOT FOR ALL

A. Remove the inlet cone fairing.

Inlet Cone ** ON A/C NOT FOR ALL

(1) Hold the inlet cone and remove the four symmetrical bolts (10) of the six bolts (10) which attach the inlet cone fairing (1) to the inlet cone (3) and the front blade retaining ring (5).

NOTE: The two bolts of the six bolts are left to not drop the inlet cone fairing.

(2) Loosen the two remaining bolts (10) which attach the inlet cone fairing (1).
(3) Use IAE1J12125 HAMMER SLIDING to release the inlet cone fairing (1) from the flange of the front blade retaining ring (5).
(4) Remove the two remaining bolts (10).
(5) Remove the inlet cone fairing from the inlet cone (3) and the front blade retaining ring (5).

Subtask 72-38-11-020-050-A ** ON A/C NOT FOR ALL

B. Remove the inlet cone

Inlet Cone ** ON A/C NOT FOR ALL

(1) Do the subsequent step if trim balance weights (6) are installed.
(a) Use the marker (Material No.V06-069) to make a mark on the trim balance weights (6) and the front blade retaining ring (5).

NOTE: Make sure that the mark which identifies each balance weight is aligned with the same mark on the retaining ring. These marks make sure of the correct installation of the balance weights on assembly.

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.
(2) Remove the bolts (7), the washers (8) and the trim balance weights (6) (if installed) which attach the inlet cone (3) to the retaining ring (5).

NOTE: Hold the inlet cone while you loosen the bolts. This prevents rotation of the fan rotor.

(3) Use the IAE1J12020 LEVER, PULLER or IAE1J12121 LEVER, PULLER, to release the inlet cone from the flange of the front blade retaining ring.

NOTE: Hold the inlet cone before it is released.

[Rev.10 from 2021] 2026.04.01 12:56:02 UTC