Removal of the NAV-Aircraft Identification Module (NAIM)

TASK 25-65-35-000-005-A
Removal of the NAV-Aircraft Identification Module (NAIM)

ZONE: 200
FIN: 144MX ** 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	CAP - BLANKING
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	1	STEPLADDER 1.0 M (3.3 FT)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
200	UPPER HALF FUSELAGE
261BC

C. Referenced Information

REFERENCE	DESIGNATION
TASK 24-42-00-861-001-A	Energize the Ground Service Network from the External Power
TASK 25-23-42-000-002-A	Removal of the Ceiling Panels - Aft Utility Area
NAIM 144MX

3. Job Set-up
Subtask 25-65-35-861-054-A ** ON A/C NOT FOR ALL

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

Subtask 25-65-35-010-056-A ** ON A/C NOT FOR ALL

B. Get Access

NAIM 144MX ** ON A/C NOT FOR ALL

(1) Put a STEPLADDER 1.0 M (3.3 FT) in position and remove the applicable ceiling panel (Ref. AMM TASK 25-23-42-000-002):

For aircraft with a one-panel ceiling 261BC.

Subtask 25-65-35-865-050-A ** ON A/C NOT FOR ALL

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
121VU	ELT/NAV&A/C/IDENT	114MX	R14

4. Procedure
Subtask 25-65-35-020-054-A ** ON A/C NOT FOR ALL

A. Removal of the NAIM 144MX

NAIM 144MX ** ON A/C NOT FOR ALL

(1) Set the ARM/OFF/TX switch (8) to the OFF position.
(2) Remove the bolts (4), the washers (3) and the nuts (2).
(3) Disconnect electrical connector 144MX-A (5) from the NAIM (6).
(4) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(5) Carefully disconnect the NAIM (6) from the Emergency Locator Transmitter (ELT) (7), and remove it from the support (1).

[Rev.10 from 2021] 2026.03.31 23:41:25 UTC