Installation of the Telescopic Duct

TASK 30-11-41-400-001-A
Installation of the Telescopic Duct

WARNING: MAKE SURE THAT THE FLIGHT CONTROL SAFETY-LOCKS AND THE WARNING NOTICES ARE IN POSITION.

WARNING: MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING GEAR. THIS WILL PREVENT UNWANTED MOVEMENT OF THE LANDING GEAR, AND THUS POSSIBLE INJURY TO PERSONS AND DAMAGE TO THE AIRCRAFT AND/OR EQUIPMENT.

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

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 3M (10 FT)
No specific	AR	SAFETY BARRIER(S)
No specific	AR	SPATULA - PLASTIC
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 0.51 and 0.39 m.daN (45.13 and 34.51 lbf.in )
No specific	Torque wrench: range to between 0.9 and 0.6 m.daN (79.65 and 53.10 lbf.in )
98D27803000000	1	LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.04JMD3)	Top Coat Polyurethane-- Decorative External Structure
(Material No.06CMD9)	Silicone Adhesive Sealant-General Purpose One part legacy
(Material No.08BAA9)	Non Aqueous Cleaner-General - -
(Material No.14QFB1)	Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
522EB, 622EB

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
21	COTTER PINS	AIPC 30-11-41-01-105
16	TABWASHERS	AIPC 30-11-41-01-285

E. Referenced Information

REFERENCE	DESIGNATION
TASK 24-41-00-861-002-A	Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01	Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-862-002-A	De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01	De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 27-80-00-866-004-A	Extending the Slats on the Ground
TASK 27-80-00-866-005-A	Retracting the Slats on the Ground
TASK 49-00-00-860-006-A	APU Shutdown by External Power
TASK 49-00-00-860-006-A-01	APU Shutdown by Batteries
TASK 49-00-00-860-009-A	APU Shutdown by External Power (131-9(A))
TASK 49-00-00-860-009-A-01	APU Shutdown by Batteries (131-9(A))
TASK 57-41-37-000-012-A	Removal of the Access Panel
TASK 57-41-37-400-012-A	Installation of the Access Panel
Telescopic Duct

3. Job Set-up
Subtask 30-11-41-860-051-A

A. Make sure that the aircraft electrical circuits are energized
(Ref. AMM TASK 24-41-00-861-002) or (Ref. AMM TASK 24-41-00-861-002).

Subtask 30-11-41-941-051-A

B. Safety Precautions
(1) Make sure that the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION is installed on the flap and slat control lever.
(2) Make sure that the WARNING NOTICE(S) are in positions that follow, before you start the work on the ice protection system:

On the high-pressure ground-power connections, to tell persons not to pressurize the pneumatic system
In the cockpit, to tell persons not to operate the engines or the APU control switches
On panel 30VU, to tell persons not to pressurize the bleed-air system
On panel 114VU, to tell persons not to operate the slat controls.

(3) Make sure that the SAFETY BARRIER(S) are in position.

Subtask 30-11-41-860-050-B

C. Aircraft Maintenance Configuration
(1) Make sure that the slats are fully extended (Ref. AMM TASK 27-80-00-866-004).
(2) Make sure that the ACCESS PLATFORM 3M (10 FT) is installed below the applicable zone 522(622).
(3) Make sure that access panel 522EB ( 622EB) is removed (Ref. AMM TASK 57-41-37-000-012).

Subtask 30-11-41-865-051-A

D. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1	5CV	B06
** ON A/C ALL
49VU	ANTI ICE/WING/CTL	2DL	C02
49VU	ANTI ICE/WING/MONG	1DL	C01
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1	5CV	B01
** ON A/C ALL
121VU	FLIGHT CONTROLS/SLT/CTL/SYS2	7CV	R21

4. Procedure
Subtask 30-11-41-560-050-B

A. Preparation of a Replacement Component
(1) Remove all the unwanted sealant from the half-clamps (14) and (15) with a SPATULA - PLASTIC.
(2) Clean the half-clamps (14) and (15) with a Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
(3) Make sure that the parts retained from the removed component are clean and in the correct condition.
(4) Apply a thin layer of Silicone Adhesive Sealant-General Purpose One part legacy (Material No.06CMD9) to the mating surfaces of the half-clamps (14) and (15).
(5) Install the half-clamp (14) on the telescopic duct. Make sure that the projection on the half-clamp (14) engages in the location slot on the telescopic duct.
(6) Install the half-clamp (15), the new AIPC 30-11-41-01-285 TABWASHERS (16) and the bolts (17).
(7) Safety the bolts (17) with the tabwashers (16).

Subtask 30-11-41-420-055-B

B. Preparation for Installation
(1) Clean the component interfaces and the adjacent areas with a Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Make sure that the parts retained from the removed component are clean and in the correct condition.

Subtask 30-11-41-420-050-B

C. Installation of the Telescopic Duct
(1) If you use the APU to energize the aircraft electrical circuits, stop the APU:

For GTCP 36-300 APU (Ref. AMM D/O 49-00-00-86)
For APS 3200 APU (Ref. AMM TASK 49-00-00-860-006)
For 131-9(A) APU (Ref. AMM TASK 49-00-00-860-009).

WARNING: MAKE SURE THAT THE PNEUMATIC SYSTEM IS DEPRESSURIZED BEFORE YOU START WORK. PRESSURIZED AIR CAN CAUSE INJURY TO PERSONNEL.

(2) Make sure that you wait for a minimum of 5 minutes until there is no pressure in the bleed-air duct system.

WARNING: DO NOT TOUCH THE UNIT UNTIL IT IS SUFFICIENTLY COOL TO PREVENT BURNS WHEN YOU DO THE MAINTENANCE TASK(S).

(3) Make sure that the temperature of the bleed-air duct system is in the ambient condition.
(4) Install the telescopic duct through the D-nose leading edge.
(5) Put the links (20) in position and install the washers (19), the bolts (18), the washers (23) and the slotted nuts (22). TORQUE the slotted nuts (22) to between 0.9 and 0.6 m.daN (79.65 and 53.10 lbf.in )

.
(6) Safety the slotted nuts (22) with the new AIPC 30-11-41-01-105 COTTER PINS (21).
(7) Remove the blanking caps from the slat duct and the telescopic duct.
(8) If necessary, retract the telescopic duct and hold it in position with 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.
(9) Install the telescopic duct on the D-nose duct. Make sure that the pin (2) on the D-nose duct engages with the hole in the flange of the telescopic duct.
(10) Install the clamp (1) in the position shown.
(11) TORQUE the clamp (1) to between 0.51 and 0.39 m.daN (45.13 and 34.51 lbf.in )

.
(12) If necessary, remove the lockwire that holds the telescopic duct in the retracted position.
(13) Manually extend and retract the telescopic duct to make sure that the assembly operates correctly.
(14) Remove the blanking caps from the telescopic duct and the slat duct.
(15) Install the telescopic duct on the slat duct.
(16) Install and TORQUE the clamp (3) to between 0.51 and 0.39 m.daN (45.13 and 34.51 lbf.in )

Subtask 30-11-41-865-052-A

D. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1	5CV	B06
** ON A/C ALL
49VU	ANTI ICE/WING/CTL	2DL	C02
49VU	ANTI ICE/WING/MONG	1DL	C01
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1	5CV	B01
** ON A/C ALL
121VU	FLIGHT CONTROLS/SLT/CTL/SYS2	7CV	R21

Subtask 30-11-41-866-051-A

E. Test
(1) Retract the slats (Ref. AMM TASK 27-80-00-866-005) and extend the slats (Ref. AMM TASK 27-80-00-866-004).
(2) Visually examine the telescopic duct for correct operation when you retract and extend the slats.
(3) Make sure that the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION is on the flap and slat control lever.

Subtask 30-11-41-370-050-B

F. Paint
(1) After a satisfactory test, paint a thin RED line across the nuts of the clamps (1) and (3) with Top Coat Polyurethane-- Decorative External Structure (Material No.04JMD3) .

5. Close-up
Subtask 30-11-41-410-050-B

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the applicable access panels:

for the LH wing, install 522EB
for the RH wing, install 622EB (Ref. AMM TASK 57-41-37-400-012).

Subtask 30-11-41-866-052-A

B. Retract the Slats
(1) Retract the slats fully (Ref. AMM TASK 27-80-00-866-005).

Subtask 30-11-41-942-050-A

C. Removal of Equipment
(1) Remove the safety barriers.
(2) Remove the access platform(s).
(3) Remove the WARNING NOTICE(S).
(4) On panel 114VU, remove the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION from the flap and slat control lever.
(5) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

Subtask 30-11-41-862-050-A

D. De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002) or (Ref. AMM TASK 24-41-00-862-002).

[Rev.10 from 2021] 2026.04.01 00:28:24 UTC