Removal of the Attenuator-SATCOM

TASK 23-28-45-000-001-A
Removal of the Attenuator-SATCOM

ZONE: 128
FIN: 112RV1 ** 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	1	ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
128	REAR AVIONIC COMPARTMENT
825, 841

C. Referenced Information

REFERENCE	DESIGNATION
Attenuator (112RV1)

3. Job Set-up
Subtask 23-28-45-010-050-A ** ON A/C NOT FOR ALL

A. Get Access
(1) Put the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position at the access door 841 in zone 222.
(2) Open the access door 841.

Subtask 23-28-45-865-059-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
121VU	SATCOM	102RV1	K01

Subtask 23-28-45-010-051-A ** ON A/C NOT FOR ALL

C. Get Access
(1) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position at the access door 825 in zone 132.
(2) Open the access door 825.

4. Procedure
Subtask 23-28-45-020-050-A ** ON A/C NOT FOR ALL

A. Removal of the Attenuator

Attenuator (112RV1) ** ON A/C NOT FOR ALL

(1) Remove the sidewall panel 131CW.

WARNING: USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.

(2) Remove and discard the lockwire from the cable (4).
(3) Remove the screw (1), the nut (5) and the washers (6).
(4) Remove the clamp (2).
(5) Disconnect the attenuator (3) from the cable (4).

[Rev.9 from 2019] 2026.04.02 06:12:03 UTC