Installation of the Ground Jack from the Air Intake Cowl

TASK 23-44-41-400-005-A
Installation of the Ground Jack from the Air Intake Cowl

ZONE: 210
ZONE: 410
ZONE: 420
ZONE: 430
ZONE: 440

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	WARNING NOTICE(S)
No specific	Torque wrench: range to between 25 and 20 lbf.in (0.28 and 0.23 m.daN )
No specific	Torque wrench: range to between 35 and 30 lbf.in (0.40 and 0.34 m.daN )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.CP1039)	acetone
(Material No.CP1041)	isopropyl alcohol
(Material No.CP2011)	stoddard solvent
(Material No.CP2269)	Locktite 242
(Material No.CP2559)	ardrox 552
(Material No.CP2560)	turco ind 79
(Material No.CP2566)	mag-chem teksol
(Material No.CP2584)	degreasol 99 R
(Material No.CP2656)	mag-chem skysol

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
210	CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD
410	ENG 1 PYLON BOX AND FORWARD FAIRING
420	ENG 2 PYLON BOX AND FORWARD FAIRING
430	ENG 1 AIR INTAKE, FAN AND ACCESS GEARBOX
440	ENG 2 AIR INTAKE, FAN AND ACCESS GEARBOX

D. Referenced Information

REFERENCE	DESIGNATION
TASK 23-44-00-700-001-A	Operational Test of the Service Interphone
Air Intake Cowl Interphone Jack

3. Job Set-up
Subtask 23-44-41-860-063-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) On the panel 115VU:

Make sure that the WARNING NOTICE(S) to tell persons not to start the engine 1(2) is in position.

(2) Make sure that the engine 1(2) has been shutdown for at least 5 minutes.
(3) On the panel 50VU:

Make sure that the ON legend of the ENG/FADEC GND PWR 1(2) pushbutton switch is off.
Make sure that the WARNING NOTICE(S) is installed.

4. Procedure
Subtask 23-44-41-420-054-A ** ON A/C NOT FOR ALL

A. Installation of the ground jack

Air Intake Cowl Interphone Jack ** ON A/C NOT FOR ALL

(1) Remove the protective covers from the ground jack (21) and the insulation from the wire (20).
(2) Clean the threads of the ground jack (21) and the nut (18) with isopropyl alcohol (Material No.CP1041) or acetone (Material No.CP1039) or stoddard solvent (Material No.CP2011) or ardrox 552 (Material No.CP2559) or turco ind 79 (Material No.CP2560) or mag-chem teksol (Material No.CP2566) or degreasol 99 R (Material No.CP2584) or mag-chem skysol (Material No.CP2656) .
(3) Wipe the threads with a clean lint free cloth before the alcohol becomes a gas.
(4) Put one drop of thread locker Locktite 242 (Material No.CP2269) on the threads of the nut (18).
(5) Put the ground wire (20) on the ground jack (21).
(6) Put the ground jack (21) in position on the air intake cowl structure. Attach the ground jack with the washers (19) and the nut (18).
(7) TORQUE the nut (18) to between 35 and 30 lbf.in (0.40 and 0.34 m.daN )

.
(8) Install the cover (9) on the air intake cowl with the screws (11).
(9) TORQUE the screws (11) to between 25 and 20 lbf.in (0.28 and 0.23 m.daN )

Subtask 23-44-41-710-054-A ** ON A/C NOT FOR ALL

B. Do the operational test of the service interphone system (Ref. AMM TASK 23-44-00-700-001).

5. Close-up
Subtask 23-44-41-860-064-A ** ON A/C NOT FOR ALL

A. Put the aircraft back to its initial configuration.
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the warning notices.

[Rev.10 from 2021] 2026.04.02 06:12:14 UTC