Removal of the Air Separation Module

TASK 47-10-43-000-801-A
Removal of the Air Separation Module

WARNING: PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:

THE FLIGHT CONTROLS
THE FLIGHT CONTROL SURFACES
THE LANDING GEAR AND THE RELATED DOORS
COMPONENTS THAT MOVE.

MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.

WARNING: YOU MUST PUT ON AND ATTACH A SAFETY HARNESS BEFORE YOU START WORK:

ON THE THS OR IN THE REAR FUSELAGE
ON TOP OF THE WINGS OR PYLONS.

WITHOUT A SAFETY HARNESS, YOU CAN FALL. THIS CAN KILL YOU OR CAUSE YOU INJURY.

ZONE: 191
FIN: 1YM ** 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	PLUG - BLANKING

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
191	AIR CONDITIONING COMPT AND FAIRINGS

C. Referenced Information

REFERENCE	DESIGNATION
TASK 47-11-41-000-001-A	Removal of the IGGS Pallet
Removal/Installation of the Air Separation Module

3. Job Set-up
Subtask 47-10-43-010-051-A ** ON A/C NOT FOR ALL

A. Remove the IGGS Pallet (Ref. AMM TASK 47-11-41-000-001).

4. Procedure
Subtask 47-10-43-020-050-B ** ON A/C NOT FOR ALL

A. Air Separation Module (ASM) Removal
(1) Remove the Nitrogen Enriched Air (NEA) outlet (22):
(a) Hold the NEA outlet (22) and remove the nut (6).
(b) Remove the screw (23), the washer (24), the clamp (25) and the NEA duct standoff (30).
(c) Pull up the latch pawls of the clamp (28). Remove and keep the clamp (28).

NOTE: The clamp (28) and the sleeve (27) attach together to make the coupling assembly.

(d) Move the sleeve (27) across the packing (29) to the Dual Flow and Shut-Off Valve (DFSOV) outlet fitting (3).
(e) Remove the NEA outlet (22) from the bracket (5).
(f) Remove and discard the packings (26) and (29).
(g) Remove the sleeve (27) from the DFSOV outlet fitting (3) and keep it with the clamp (28).
(2) Remove the ASM (1):
(a) Pull up the latch pawls of the clamp (12). Remove and keep the clamp (12).

NOTE: The clamp (12) and the sleeve (13) attach together to make the coupling assembly.

(b) Move the sleeve (13) across the packing (11) to the NEA outlet (4).
(c) Pull up the latch pawls of the clamp (18). Remove and keep the clamp (18).

NOTE: The clamp (18) and the sleeve (17) attach together to make the coupling assembly.

(d) Move the sleeve (17) across the packing (16) to the air stream inlet (10).
(e) Hold the ASM (1) and remove the bolts (9), the washers (8) and the ASM straps (7).
(f) Remove and discard the ASM (1) with the packings (14) and (19).
(g) Remove and discard the packings (11) and (16).
(h) Remove the sleeve (13) from the ASM outlet (4) and keep it with the clamp (12).
(i) Remove the sleeve (17) from the air stream inlet (10) and keep it with the clamp (18).
(3) Put the PLUG-BLANKING in each disconnected line end.

[Rev.10 from 2021] 2026.04.02 06:26:17 UTC