Removal of the Radio Altimeter Transceiver

TASK 34-42-33-000-001-A
Removal of the Radio Altimeter Transceiver

ZONE: 152
FIN: 2SA1
FIN: 2SA2

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

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
152	AFT CARGO COMPARTMENT
152GW, 826

C. Referenced Information

REFERENCE	DESIGNATION
TASK 24-42-00-861-001-A	Energize the Ground Service Network from the External Power
TASK 25-55-11-000-003-A	Removal of the Sidewall Panels in the Aft Cargo Compartment - FR47/FR59
TASK 52-30-00-860-001-A	Open the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump
Radio Altimeter Transceiver ** ON A/C NOT FOR ALL
Radio Altimeter Transceiver ** ON A/C NOT FOR ALL
Radio Altimeter Transceiver ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 34-42-33-861-050-A

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

Subtask 34-42-33-865-050-A

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
FOR FIN: 2SA1 (XCVRRA, 1)
121VU	COM NAV/RAD ALTM/1	1SA1	K11
FOR FIN: 2SA2 (XCVRRA, 2)
121VU	COM NAV/RAD ALTM/2	1SA2	K12

Subtask 34-42-33-010-050-A

C. Get Access
(1) Open aft cargo-compartment door 826 (Ref. AMM TASK 52-30-00-860-001).
(2) Remove access panel 152GW (Ref. AMM TASK 25-55-11-000-003).

4. Procedure
Subtask 34-42-33-020-051-A

A. Removal of the Radio Altimeter Transceiver
(1) Loosen the knurled nuts (3) and lower the fasteners.
(2) Carefully remove the radio altimeter transceiver (1) from the rack (2).
(3) Make sure that you do not damage the electrical connector pins.
(4) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.

[Rev.10 from 2021] 2026.04.02 07:15:09 UTC