Removal of the Cabin Intercommunication Data System (CIDS) Data Converter

TASK 33-21-32-000-801-A
Removal of the Cabin Intercommunication Data System (CIDS) Data Converter

ZONE: 240
FIN: 581LG ** ON A/C NOT FOR ALL
FIN: 582LG ** 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	1	SCREWDRIVER
No specific	1	STEPLADDER 1.0 M (3.3 FT)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
240	MID PASSENGER COMPARTMENT
FOR [581LG] (CONVERTER-DATA)
FOR [582LG] (CONVERTER-DATA)
241EC

C. Referenced Information

REFERENCE	DESIGNATION
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)
CIDS Data Converter
FOR [581LG] (CONVERTER-DATA)
FOR [582LG] (CONVERTER-DATA)
TASK 25-23-41-000-001-A	Removal of the Ceiling Panels

3. Job Set-up
Subtask 33-21-32-861-050-A ** ON A/C NOT FOR ALL

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

Subtask 33-21-32-010-050-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Put a STEPLADDER 1.0 M (3.3 FT) in position.
(2) Remove the ceiling panel:
(a) FOR [581LG] (CONVERTER-DATA), [582LG] (CONVERTER-DATA)
Remove 241EC (Ref. AMM TASK 25-23-41-000-001).

Subtask 33-21-32-865-050-A ** ON A/C NOT FOR ALL

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
2000VU	LIGHT-HATRACK-STRIP	312LG	J05

4. Procedure
Subtask 33-21-32-020-050-A ** ON A/C NOT FOR ALL

A. Removal of the CIDS Data Converter

CAUTION: MAKE SURE THAT THE ELECTRICAL CONNECTORS ARE CLEAN BEFORE YOU DISCONNECT OR CONNECT THEM. CONTAMINATION ON THE ELECTRICAL CONNECTORS CAN CAUSE DAMAGE TO EQUIPMENT.

(1) (1) Disconnect the electrical connector (3).
(2) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(3) Use a SCREWDRIVER to remove the CIDS data converter (2) from the clip (1).

[Rev.10 from 2021] 2026.04.01 00:53:30 UTC