Removal of the Cabin Wireless LAN-Unit (CWLU)

TASK 46-41-35-000-801-A
Removal of the Cabin Wireless LAN-Unit (CWLU)

ZONE: 200
FIN: 3010RF1 ** ON A/C NOT FOR ALL
FIN: 3010RF2 ** ON A/C NOT FOR ALL
FIN: 3010RF3 ** ON A/C NOT FOR ALL
FIN: 3010RF4 ** 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	STEPLADDER 1.0 M (3.3 FT)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
200	UPPER HALF FUSELAGE

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)
TASK 25-23-41-000-001-A	Removal of the Ceiling Panels
TASK 46-41-00-00	CABIN INFORMATION NETWORK SYSTEM - DESCRIPTION AND OPERATION
Cabin Wireless LAN-Unit (CWLU)

3. Job Set-up
Subtask 46-41-35-860-050-A ** ON A/C NOT FOR ALL

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

Subtask 46-41-35-865-050-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
2000VU	WAP	27MH	D07
2000VU	CINS-HESU	21RF	E02

Subtask 46-41-35-010-050-B ** ON A/C NOT FOR ALL

C. Get Access
(1) For the location of this component refer to (Ref. AMM D/O 46-41-00-00).
(2) Put the STEPLADDER 1.0 M (3.3 FT) below the related ceiling panel.
(3) Remove the related ceiling panel(s) (Ref. AMM TASK 25-23-41-000-001).

4. Procedure
Subtask 46-41-35-020-050-B ** ON A/C NOT FOR ALL

A. Removal of the Cabin Wireless LAN-Unit (CWLU)

Cabin Wireless LAN-Unit (CWLU) ** ON A/C NOT FOR ALL

CAUTION: TO PREVENT POSSIBLE CROSS-CONNECTION OF THE ELECTRICAL CONNECTORS, MAKE SURE THAT PLUGS AND RECEPTACLES ARE CLEARLY IDENTIFIED.

(1) Put the identification marks on the electrical connectors (4) before you disconnect them. This is important for the subsequent installation procedure.

CAUTION: DO NOT TOUCH THE CONNECTOR PINS OR OTHER CONDUCTORS ON THE COMPONENT DURING THE PROCEDURE. IF YOU TOUCH THESE CONDUCTORS, ELECTROSTATIC DISCHARGE CAN CAUSE DAMAGE TO COMPONENT.

(2) Disconnect the electrical connectors (4) from the CWLU (3).
(3) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.

CAUTION: MAKE SURE THAT THE ELECTRICAL CONNECTOR(S) IS(ARE) DISCONNECTED BEFORE YOU DISCONNECT THE BONDING STRAP(S).

(4) Remove the screws (2) and the washers (1).
(5) Carefully remove the CWLU (3).

[Rev.10 from 2021] 2026.04.02 06:26:15 UTC