Removal of the Multiple VHF Data Radio (MVDR) Transceiver

TASK 23-12-33-000-804-A
Removal of the Multiple VHF Data Radio (MVDR) Transceiver

ZONE: 127
ZONE: 128

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
No specific	AR	CAP - BLANKING
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
127	REAR AVIONIC COMPARTMENT
128	REAR AVIONIC COMPARTMENT
824

C. Referenced Information

REFERENCE	DESIGNATION
TASK 24-42-00-861-001-A	Energize the Ground Service Network from the External Power
Multiple VHF Data Radio (MVDR) Transceiver

3. Job Set-up
Subtask 23-12-33-861-050-A ** ON A/C NOT FOR ALL

A. Energize the ground service network
(Ref. AMM TASK 24-42-00-861-001).

Subtask 23-12-33-865-060-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: 10RC1
49VU	COM/VHF/1	2RC1	G09
121VU	COM NAV/VHF/3	2RC3	L05
FOR FIN: 10RC2
121VU	COM NAV/VHF/2	2RC2	L04

Subtask 23-12-33-010-053-A ** ON A/C NOT FOR ALL

C. Get Access
(1) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position at access door 824 in zone 128.
(2) Open access door 824.

4. Procedure
Subtask 23-12-33-020-053-A ** ON A/C NOT FOR ALL

A. Removal of the MVDR Transceiver
(1) Loosen the nuts (3).
(2) Lower the nuts (3).
(3) Pull the MVDR transceiver (5) on its rack (2) to disconnect the electrical connectors (1).
(4) Remove the MVDR transceiver (5).
(5) Put the CAP - BLANKING on the disconnected electrical connectors (1).

[Rev.8 from Aug 2017] 2026.04.02 06:12:01 UTC