Removal of the GPS Active Antenna

TASK 34-36-16-000-001-A
Removal of the GPS Active Antenna

ZONE: 220
FIN: 43RT1 ** ON A/C NOT FOR ALL
FIN: 43RT2 ** 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 6M (20 FT)
No specific	AR	CAP - BLANKING
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	AR	SCRAPER - NON METALLIC
No specific	1	TAPE - MASKING

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
220	FWD CAB UTILITY AREAS

C. Referenced Information

REFERENCE	DESIGNATION
GPS Active Antenna ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 34-36-16-865-050-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
49VU	NAV/MMR/1	42RT1	G12
** ON A/C NOT FOR ALL
121VU	COM NAV/MMR/2	42RT2	K09
** ON A/C NOT FOR ALL
121VU	COM NAV/MMR/2	42RT2	L07

Subtask 34-36-16-010-057-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Put the ACCESS PLATFORM 6M (20 FT) in position at zone 220 to get access to the antenna 43RT1 (43RT2).

4. Procedure
Subtask 34-36-16-020-050-B ** ON A/C NOT FOR ALL

A. Removal of the GPS Active Antenna without Teflon Seal
(1) Remove the sealant from the head of the screws (2) and around the bottom of the antenna (1) with the SCRAPER - NON METALLIC.
(2) Remove the four screws (2) and carefully pull the antenna (1) away from the fuselage structure (3).
(3) Disconnect the coaxial connector (4).
(4) Remove the antenna (1) and put the CAP - BLANKING on the disconnected coaxial connector (4).
(a) The coaxial connector (4) must not go into the fuselage structure (3).
1 Attach the coaxial connector (4) to the fuselage structure (3) with the TAPE - MASKING.
(5) Remove the O-ring (5).

NOTE: If the O-ring (5) is in good condition, you can keep it for the subsequent installation.

[Rev.10 from 2021] 2026.04.01 01:00:30 UTC