Power Up the Flight Operations and MAintenance eXchanger (FOMAX) with the Circuit Breaker

TASK 46-26-32-860-808-A
Power Up the Flight Operations and MAintenance eXchanger (FOMAX) with the Circuit Breaker

ZONE: 128

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

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
128	REAR AVIONIC COMPARTMENT
824

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)
TASK 46-26-32-860-804-A	Access to the LEDs of the Flight Operations and MAintenance eXchanger (FOMAX)
TASK 52-41-00-010-002-A	Open the Avionics Compartment Doors for Access
TASK 52-41-00-410-002-A	Close the Avionics Compartment Doors after Access

3. Job Set-up
Subtask 46-26-32-861-076-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 46-26-32-010-065-A ** ON A/C NOT FOR ALL

B. Get access to the avionics compartment.
(1) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position below access door 824.
(2) Open access door 824 (Ref. AMM TASK 52-41-00-010-002).

4. Procedure
Subtask 46-26-32-865-082-A ** ON A/C NOT FOR ALL

A. Close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
121VU	FOMAX	67TA	J01
** ON A/C NOT FOR ALL
121VU	FOMAX	67TA	R12

Subtask 46-26-32-010-066-A ** ON A/C NOT FOR ALL

B. Get access to the FOMAX LEDs (Ref. AMM TASK 46-26-32-860-804).

Subtask 46-26-32-210-051-A ** ON A/C NOT FOR ALL

C. Do a check of the FOMAX LEDs, when FOMAX start-up is complete, the green LED is on and the amber LED is off.

5. Close-up
Subtask 46-26-32-410-069-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close access door 824 (Ref. AMM TASK 52-41-00-410-002).
(3) Remove the access platform(s).

[Rev.10 from 2021] 2026.04.02 06:26:07 UTC