Operational Test of the Cabin and Flight Crew Interphone System.

TASK 23-43-00-700-001-A
Operational Test of the Cabin and Flight Crew Interphone System.

WARNING: MAKE SURE THAT ALL THE CIRCUITS IN MAINTENANCE ARE ISOLATED BEFORE YOU SUPPLY ELECTRICAL POWER TO THE AIRCRAFT. UNWANTED ELECTRICAL POWER CAN BE DANGEROUS.

1. Reason for the Job
To make sure the cabin and flight crew interphone system operates correctly.
2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
TASK 23-73-00-710-003-A	Operational Test of the Cabin and Flight Crew Interphone System
TASK 23-73-00-710-021-A	Operational Test of the Cabin and Flight Crew Interphone System
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 24-41-00-861-002-A-02	Energize the Aircraft Electrical Circuits from Engine 1(2)
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 24-41-00-862-002-A-02	De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)

3. Job Set-up
Subtask 23-43-00-861-050-A

A. Energize the aircraft electrical circuits. (Ref. AMM TASK 24-41-00-861-002)

Subtask 23-43-00-865-050-A

B. Make sure that this(these) circuit breaker(s) is(are) closed:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	COM/CIDS/DEU A ESS/LINE 2	155RH	G05
49VU	COM/CIDS/DEU A ESS/LINE 1	154RH	G04
** ON A/C NOT FOR ALL
49VU	COM/CIDS/DEU B/ESS	153RH	G03
49VU	COM/CIDS/DIR ESS/1	150RH	G01
** ON A/C NOT FOR ALL
49VU	COM NAV/CIDS/DIR1 ESS	150RH	G01
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DEU A NORM/R AFT	168RH	M14
121VU	COM NAV/CIDS/DEU A NORM/L AFT	167RH	M13
121VU	COM NAV/CIDS/DEU A NORM/R MID	166RH	M12
121VU	COM NAV/CIDS/DEU A NORM/L MID	165RH	M11
121VU	COM NAV/CIDS/PROG &/TST PNL	161RH	M07
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DEU A NORM/R FWD	164RH	M10
121VU	COM NAV/CIDS/DEU A NORM/L FWD	163RH	M09
121VU	COM NAV/CIDS/DEU B/NORM	162RH	M08
121VU	COM NAV/CIDS/DIR NORM/1	151RH	M05
** ON A/C NOT FOR ALL
121VU	COM /CIDS/FWD ATTND/PNL	170RH	Q14
** ON A/C NOT FOR ALL
121VU	COM /CIDS/FLT ATTND/PNL	170RH	Q14
** ON A/C NOT FOR ALL
121VU	COM/FAP1/NORM	170RH	Q14
** ON A/C NOT FOR ALL
121VU	COM CIDS FWD ATTND PNL	170RH	Q14
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DEU A NORM/R AFT	168RH	M12
121VU	COM NAV/CIDS/DEU A NORM/L AFT	167RH	M11
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DEU A NORM/R FWD	164RH	M11
121VU	COM NAV/CIDS/DEU A NORM/L FWD	163RH	M10
121VU	COM NAV/CIDS/DIR NORM/1	151RH	M06
121VU	COM NAV/CIDS/FWD ATTND/PNL	170RH	Q14
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DIR1 NORM	151RH	M05
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DEU A NORM/R MID	166RH	M13
121VU	COM NAV/CIDS/DEU A NORM/L MID	165RH	M12
121VU	COM NAV/CIDS/DEU B/NORM	162RH	M09
121VU	COM NAV/CIDS/PROG &/TST PNL	161RH	M08

4. Procedure
Subtask 23-43-00-710-050-A ** ON A/C NOT FOR ALL

A. Operational test of the cabin and flight crew interphone system is included in the Cabin Intercommunication Data System (CIDS) test (Ref. AMM TASK 23-73-00-710-003).

Subtask 23-43-00-710-050-B ** ON A/C NOT FOR ALL

A. Operational test of the cabin and flight crew interphone system is included in the Cabin Intercommunication Data System (CIDS) test (Ref. AMM TASK 23-73-00-710-021).

5. Close-up
Subtask 23-43-00-862-050-A

A. De-energize the aircraft electrical circuit (Ref. AMM TASK 24-41-00-862-002).

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