Removal of the High Frequency (HF) Transceiver

TASK 23-11-33-000-001-A
Removal of the High Frequency (HF) Transceiver

ZONE: 127
ZONE: 128
FIN: 3RE1 ** ON A/C NOT FOR ALL
FIN: 3RE2 ** 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	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
HF Transceiver

3. Job Set-up
Subtask 23-11-33-865-050-A ** ON A/C NOT FOR ALL

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
FOR FIN: 3RE1 (XCVRHF, 1)
49VU	HF1	1RE1	HA14
FOR FIN: 3RE2 (XCVRHF, 2)
121VU	COM NAV/HF2	1RE2	L13

Subtask 23-11-33-010-050-A ** ON A/C NOT FOR ALL

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

4. Procedure
Subtask 23-11-33-020-050-A ** ON A/C NOT FOR ALL

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

[Rev.10 from 2021] 2026.04.02 06:11:57 UTC