Removal of the Low Earth Orbit (LEO) Passive Antenna

TASK 23-28-13-000-802-A
Removal of the Low Earth Orbit (LEO) Passive Antenna

ZONE: 230
FIN: 1016RV1 ** 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 6M (20 FT) - ADJUSTABLE
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	1	SCRAPER - NON METALLIC
No specific	1	TAPE - MASKING

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
230	FWD PASSENGER COMPARTMENT

C. Referenced Information

REFERENCE	DESIGNATION
TASK 24-41-00-861-002-A	Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01	Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02	Energize the Aircraft Electrical Circuits from Engine 1(2)
LEO Passive Antenna

3. Job Set-up
Subtask 23-28-13-861-052-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002)

Subtask 23-28-13-865-076-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	240RV	K01

Subtask 23-28-13-941-059-A ** ON A/C NOT FOR ALL

C. Get Access
(1) Put the ACCESS PLATFORM 6M (20 FT) - ADJUSTABLE in position at zone 230.

4. Procedure
Subtask 23-28-13-020-058-A ** ON A/C NOT FOR ALL

A. Removal of the LEO Passive Antenna

LEO Passive Antenna ** ON A/C NOT FOR ALL

(1) Remove the sealant from the screw heads (1) and around the antenna base (2) with a SCRAPER - NON METALLIC.
(2) Remove the four screws (1) and pull the antenna (2) away from the fuselage structure (6), until you can see the coaxial connector (4).

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.

(3) Remove and discard the lockwire from the coaxial connector (4).
(4) Disconnect the coaxial connector (4) from the antenna (2).
(5) Remove the gasket (3).
(6) Put blanking cap on the disconnected coaxial connector (4).
(7) Apply TAPE - MASKING around the coaxial connector (4) and the screw holes and attach it to the fuselage structure (6).
(8) Remove the antenna (2).

[Rev.10 from 2021] 2026.03.31 23:12:43 UTC