Removal of the Maintenance Interphone Jack

TASK 23-44-41-000-001-A
Removal of the Maintenance Interphone Jack

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	COVER - PROTECTION
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 Jack
Air Intake Cowl Interphone Jack

3. Job Set-up
Subtask 23-44-41-860-055-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 1(2) pushbutton switch is off.
Install a WARNING NOTICE(S).

Subtask 23-44-41-865-060-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	COM/CIDS/DIR ESS/1	150RH	G01
121VU	COM NAV/CIDS/DIR NORM/1	151RH	M05
121VU	COM/CIDS/DIR 1/BAT	147RH	P13
FOR FIN: 102RH (DIRCIDS, 2)
49VU	COM/CIDS/DIR ESS/2	157RH	G02
49VU	COM/CIDS/DIR ESS/1	150RH	G01
121VU	COM NAV/CIDS/DIR NORM/2	156RH	M06
121VU	COM NAV/CIDS/DIR NORM/1	151RH	M05
121VU	COM/CIDS/DIR 2/BAT	146RH	P14

4. Procedure
Subtask 23-44-41-020-050-A ** ON A/C NOT FOR ALL

A. Removal of the Maintenance Interphone Jack

PRE SB RA32071-114

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

(1) Remove the bolts (11) that hold the access plate (9) to the air intake cowl.
(2) Pull the access plate (9) and attached interphone jack-assembly from the air intake cowl.
(3) Remove the screws (10) that hold the mounting plate (6), the shell (4), and the retainer (3) to the access plate (9).
(4) Remove the access plate (9).
(5) Remove the nut (8) and the lockwasher (7) that hold the jack (5) to the mounting plate (6).
(6) Remove the mounting plate (6).
(7) Remove the coupling nut (1) from behind the shell (4). Move the coupling nut to the rear of the harness assembly until the pressure plates (17) and the gland (2) are shown.
(8) Pull the jack (5) free from the shell (4).
(9) Put tags on the electrical connections of the jack (5).
(10) Remove the screws (16), the washers (15) and the lockwashers (13), and nuts (14) that connect the electrical wires to the jack (5).
(11) Remove the jack (5) from the wire harness.
(12) Install COVER - PROTECTION on the interphone jack (5), and isolate wires.

POST SB RA32071-114

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

(13) Remove the bolts (11) that hold the access plate (9) to the air intake cowl.
(14) Pull the access plate (9) and attached interphone jack-assembly from the air intake cowl.
(15) Remove the screws (10) that hold the mounting plate (30) and the retainer (3) to the access plate (9).
(16) Remove the access plate (9) and the retainer (3).
(17) Remove the nut (8) and the lockwasher (7) that hold the jack (35) to the mounting plate (30).
(18) Remove the mounting plate (30) from the jack (35).
(19) Install COVER - PROTECTION on the jack (35).

END OF SB RA32071-114

[Rev.10 from 2021] 2026.04.02 06:12:13 UTC