Installation of the Weather Radar Transceiver

TASK 34-41-33-400-007-A
Installation of the Weather Radar Transceiver

ZONE: 121
FIN: 1SQ1 ** 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	ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
No specific	AR	CAP - BLANKING

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
121	AVIONICS COMPARTMENT

C. Referenced Information

REFERENCE	DESIGNATION
TASK 34-41-00-740-002-A	BITE Test of the Weather Radar
Weather Radar Transceiver

3. Job Set-up
Subtask 34-41-33-860-054-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position at the access door 811 in zone 122.
(2) Make sure that the access door 811 is opened.

Subtask 34-41-33-865-067-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
121VU	COM NAV/RADAR/1	5SQ1	K13

4. Procedure
Subtask 34-41-33-420-051-A ** ON A/C NOT FOR ALL

A. Installation of the Weather Radar Transceiver
(1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Remove the CAP - BLANKING from the electrical connectors (4) and (6).
(4) Make sure that all the electrical connections are clean and in the correct condition.
(5) Install the weather radar transceiver (2) on the rack (1).
(6) Push the weather radar transceiver (2) on the rack (1) to connect the electrical connectors (4) and (6).
(7) Engage and tighten the nuts (5) on the lugs (3).

Subtask 34-41-33-865-068-A ** ON A/C NOT FOR ALL

B. 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
121VU	COM NAV/RADAR/1	5SQ1	K13

Subtask 34-41-33-740-051-A ** ON A/C NOT FOR ALL

C. Do the BITE test of the weather radar (Ref. AMM TASK 34-41-00-740-002).

5. Close-up
Subtask 34-41-33-860-056-A ** ON A/C NOT FOR ALL

A. Make sure that the work area is clean and clear of tool(s) and other items.

Subtask 34-41-33-410-051-A ** ON A/C NOT FOR ALL

B. Close Access
(1) Close the access door 811.
(2) Remove the access platform(s).

[Rev.10 from 2021] 2026.04.02 06:23:22 UTC