Removal of the Jack - Maintenance Interphone

TASK 23-44-41-000-002-A
Removal of the Jack - Maintenance Interphone

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE PARTS AFTER THE ENGINE SHUTDOWN. USE APPLICABLE THERMAL GLOVES. THE ENGINE PARTS CAN STAY HOT FOR ONE HOUR AFTER SHUTDOWN AND CAN BURN YOU.

ZONE: 210
ZONE: 410
ZONE: 420
ZONE: 430
ZONE: 440
FIN: 4000RJ1 ** ON A/C NOT FOR ALL
FIN: 4000RJ2 ** 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	CAP - BLANKING
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	AR	WARNING NOTICE(S)

B. 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

C. Referenced Information

REFERENCE	DESIGNATION
Air Intake Cowl - Interphone Harness

3. Job Set-up
Subtask 23-44-41-860-053-A ** ON A/C NOT FOR ALL

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

Put a WARNING NOTICE(S) to tell persons not to start the engine 1(2).

(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 pushbutton switch is off.
Install a WARNING NOTICE(S).

Subtask 23-44-41-865-063-A ** ON A/C NOT FOR ALL

B. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
FOR FIN: 101RH (DIRCIDS, 1)
49VU	AIR COND/CIDS/SDF/DIR1 ESS	15WH	C05
49VU	COM/CIDS/DIR ESS/1	150RH	G01
121VU	COM NAV/CIDS/DIR NORM/1	151RH	M06
121VU	COM/CIDS/DIR 1/BAT	147RH	P13
122VU	AIR COND/CIDS/SDF/DIR NORM/1	17WH	T17
FOR FIN: 102RH (DIRCIDS, 2)
49VU	AIR COND/CIDS/SDF/DIR2 ESS	18WH	C06
49VU	COM DIR ESS/2	157RH	G02
49VU	COM/CIDS/DIR ESS/1	150RH	G01
121VU	COM NAV/CIDS/DIR NORM/2	156RH	M07
121VU	COM NAV/CIDS/DIR NORM/1	151RH	M06
121VU	COM/CIDS/DIR 2/BAT	146RH	P14
122VU	AIR COND/CIDS/SDF/DIR NORM/2	14WH	T18

4. Procedure
Subtask 23-44-41-010-050-A ** ON A/C NOT FOR ALL

A. Remove the anti-ice access panel (7).
(1) Remove the bolts (8).
(2) Remove the access panel (7).

Subtask 23-44-41-020-052-A ** ON A/C NOT FOR ALL

B. Removal of the Maintenance Interphone Jack
(1) Disconnect the electrical connector (5).
(2) Put CAP - BLANKING on the electrical connector and the electrical receptacle.
(3) Remove the interphone harness (6).
(a) Remove the bolts (4).
(b) Remove the screws (1).
(c) Remove the harness (6) from the air intake cowl.
(4) Remove all the clips (3) from the harness and keep them for the installation of the replacement harness.

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