Installation of the Jack - Maintenance Interphone

TASK 23-44-41-400-002-A
Installation of the Jack - Maintenance Interphone

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	WARNING NOTICE(S)
No specific	Torque wrench: range to between 44 and 36 lbf.in (0.50 and 0.41 m.daN )

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
TASK 23-44-00-700-001-A	Operational Test of the Service Interphone
TASK 70-23-15-912-010-A	Connection of Electrical Connectors
Air Intake Cowl - Interphone Harness

3. Job Set-up
Subtask 23-44-41-860-054-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.

Subtask 23-44-41-865-064-A ** ON A/C NOT FOR ALL

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

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 23-44-41-420-052-A ** ON A/C NOT FOR ALL

A. Installation of the Maintenance Interphone Jack
(1) Install the clips, from the removed harness, to the replacement harness.
(2) Remove the covers/caps/plugs from the electrical connector and the electrical receptacle.
(3) Make sure that the anti-ice access panel has no damage.
(4) Install the interphone harness.
(a) Put the harness (6) in the air intake cowl and attach the maintenance interphone jack (2) with the screws (1).
(b) Attach the harness clips (3) to the cowl with the bolts (4).
(c) Torque the bolts (4) to between 44 and 36 lbf.in (0.50 and 0.41 m.daN )

.
(5) Connect the electrical connector (5) (Ref. AMM TASK 70-23-15-912-010).

Subtask 23-44-41-410-050-A ** ON A/C NOT FOR ALL

B. Install the anti-ice access panel.
(1) Put the access panel (7) on the air intake cowl.
(2) Attach the access panel with the bolts (8).

Subtask 23-44-41-865-065-A ** ON A/C NOT FOR ALL

C. 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
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

Subtask 23-44-41-710-052-A ** ON A/C NOT FOR ALL

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

5. Close-up
Subtask 23-44-41-942-050-A ** ON A/C NOT FOR ALL

A. Remove the warning notices.

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