Installation of the Bleed-Air Line Restrictor

TASK 29-14-13-400-001-A
Installation of the Bleed-Air Line Restrictor

FIN: 1392GM ** 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	ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 1.7 and 1.5 m.daN (12.54 and 11.06 lbf.ft )
No specific	Torque wrench: range to between 3.2 and 2.9 m.daN (23.60 and 21.39 lbf.ft )

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
195BB
476BR, 476CR
475BR

C. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
10	PACKING	AIPC 29-14-06-01-130

D. Referenced Information

REFERENCE	DESIGNATION
TASK 29-10-00-864-003-A	Depressurize the Blue Hydraulic System
TASK 29-14-00-614-001-A	Depressurization of the Hydraulic Reservoirs
TASK 29-23-00-864-001-A	Depressurize the Green and Yellow Hydraulic Systems after Operation of the PTU
TASK 29-24-00-864-001-A	Depressurize the Yellow Hydraulic System
TASK 54-53-11-000-002-A	Removal of the Pylon-to-Wing Access Panels
TASK 54-53-11-000-002-B	Removal of the Pylon-to-Wing Access Panels
TASK 54-53-11-400-002-A	Installation of the Pylon-to-Wing Access Panels
TASK 54-53-11-400-002-B	Installation of the Pylon-to-Wing Access Panels
Bleed-Air Line Restrictor ** ON A/C NOT FOR ALL
Bleed-Air line Restrictor ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 29-14-13-860-051-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Make sure that the hydraulic system are depressurized (Ref. AMM TASK 29-23-00-864-001) (Ref. AMM TASK 29-24-00-864-001) (Ref. AMM TASK 29-10-00-864-003).
(2) Make sure that the hydraulic reservoir is depressurized (Ref. AMM TASK 29-14-00-614-001).
(3) Make sure that WARNING NOTICE(S) is (are) in position to tell persons not to pressurize the hydraulic system:

on the ground service panel 198CB.

(4) Make sure that WARNING NOTICE(S) is (are) in position on the access door 195BB to tell persons not to pressurize the hydraulic reservoir.
(5) Make sure that an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position at the zone 476.
(6) Make sure that the access panels 476BR, 476CR are removed (Ref. AMM TASK 54-53-11-000-002).

Subtask 29-14-13-860-051-C ** ON A/C NOT FOR ALL

on the ground service panel 198CB.

(4) Make sure that WARNING NOTICE(S) is (are) in position on the access door 195BB to tell persons not to pressurize the hydraulic reservoir.
(5) Make sure that an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position at the zone 476.
(6) Make sure that the access panel 475BR is removed (Ref. AMM TASK 54-53-11-000-002).

Subtask 29-14-13-941-052-A ** ON A/C NOT FOR ALL

B. Safety Precautions
(1) On the center pedestal, on the ENG panel 115VU:

make sure that WARNING NOTICE(S) is (are) in position 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) Make sure that the WARNING NOTICE(S) is (are) in position to tell persons not to pressurize the hydraulic system:

in the cockpit, on the HYD section of the overhead panel 40VU.

(4) On the overhead maintenance panel 50VU:

make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.

(5) Make sure that the WARNING NOTICE(S) is (are) in position to tell persons not to energize the FADEC 1(2).

4. Procedure
Subtask 29-14-13-420-051-A ** ON A/C NOT FOR ALL

A. Installation of the Bleed-Air Line Restrictor
(1) Install the new AIPC 29-14-06-01-130 PACKING (10) on the bleed-air line restrictor (9).
(2) Remove the blanking plugs from the unions (1) and (11) and the pipe (7).
(3) Install the bleed-air line restrictor (9) in the union (11).
(4) TORQUE the bleed-air line restrictor (9) to between 3.2 and 2.9 m.daN (23.60 and 21.39 lbf.ft )

.
(5) Install the pipe (7) on the bleed-air line restrictor (9) and on the union (1).
(6) TORQUE the nuts (2) and (8) to between 1.7 and 1.5 m.daN (12.54 and 11.06 lbf.ft )

.
(7) Attach the clamp (4) to the structure (3) with the washer (5) and the screw.

5. Close-up
Subtask 29-14-13-410-050-A ** ON A/C NOT FOR ALL

A. Put the aircraft back to its initial configuration.
(1) Remove the WARNING NOTICE(S).
(2) Remove the access platform(s).
(3) Make sure that the work area is clean and clear of tools and other items.
(4) Install the access panels 476CR 476BR (Ref. AMM TASK 54-53-11-400-002).
(5) Close the door 195BB.

Subtask 29-14-13-410-050-C ** ON A/C NOT FOR ALL

A. Put the aircraft back to its initial configuration.
(1) Remove the WARNING NOTICE(S).
(2) Remove the access platform(s).
(3) Make sure that the work area is clean and clear of tools and other items.
(4) Install the access panel 475BR (Ref. AMM TASK 54-53-11-400-002).
(5) Close the door 195BB.

[Rev.10 from 2021] 2026.04.01 00:24:15 UTC