Installation of the Airline Flight Operations and MAintenance eXchanger (FOMAX) Gatelink-Antenna

TASK 46-26-16-400-801-A
Installation of the Airline Flight Operations and MAintenance eXchanger (FOMAX) Gatelink-Antenna

ZONE: 230
FIN: 73TA ** 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	Torque wrench: range to between 6.1 and 4.1 lbf.in (0.07 and 0.05 m.daN )
No specific	Torque wrench: range to between 40.00 and 38.00 lbf.in (0.45 and 0.43 m.daN )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.14QDC1)	Wire-Locking Dia: 0.5 mm (0.020 inch) CRES -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
230	FWD PASSENGER COMPARTMENT

D. Referenced Information

REFERENCE	DESIGNATION
TASK 20-28-00-912-802-A	Electrical Bonding - General Maintenance Procedure
TASK 24-42-00-861-001-A	Energize the Ground Service Network from the External Power
TASK 24-42-00-862-001-A	De-energize the Ground Service Network Supplied from the External Power
TASK 25-23-41-000-001-A	Removal of the Ceiling Panels
TASK 25-23-41-400-001-A	Installation of the Ceiling Panels
TASK 46-26-32-860-801-A	Connection of the Maintenance Electronic Device (with the Local Maintenance Function (LMF)) to the Flight Operations and MAintenance eXchanger (FOMAX)
TASK 46-26-32-860-806-A	Disconnection of the Maintenance Electronic Device (with the Local Maintenance Function (LMF)) from the Flight Operations and MAintenance eXchanger (FOMAX)
A/L FOMAX Gatelink-Antenna

3. Job Set-up
Subtask 46-26-16-861-051-A ** ON A/C NOT FOR ALL

A. Make sure that the ground service network is energized
(Ref. AMM TASK 24-42-00-861-001).

Subtask 46-26-16-865-051-A ** ON A/C NOT FOR ALL

B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:

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 46-26-16-010-052-A ** ON A/C NOT FOR ALL

C. Make sure that ceiling panel 231CC is removed (Ref. AMM TASK 25-23-41-000-001).

4. Procedure
Subtask 46-26-16-420-050-A ** ON A/C NOT FOR ALL

A. Install the Airline Flight Operations and MAintenance eXchanger (FOMAX) gatelink-antenna:
(1) Make sure that the parts retained from the removed component are clean and in the correct condition.
(2) Clean the component interfaces and the adjacent area.
(3) Do an inspection of the component interfaces and the adjacent area.
(4) Put and hold the airline FOMAX gatelink-antenna (3) in position on the bracket (4).
(5) Make sure that you can see the label on the airline FOMAX gatelink-antenna (3).
(6) Attach the airline FOMAX gatelink-antenna (3) with the four screws (2).
(7) Prepare for the electrical bonding (Ref. AMM TASK 20-28-00-912-802).

NOTE: The antenna mounting screws (2) give the electrical bonding between the airline FOMAX gatelink-antenna (3) and the bracket (4).

(8) TORQUE the screws (2) to between 40.00 and 38.00 lbf.in (0.45 and 0.43 m.daN )

.
(9) Make sure that the bonding contact resistance between the airline FOMAX gatelink-antenna (3) and the fuselage structure is not more than five milliohms (Ref. AMM TASK 20-28-00-912-802).
(10) Remove the CAP-BLANKING from each electrical connector and receptacle.
(11) Connect the electrical connector (1) to the electrical connector (5).
(a) TORQUE the electrical connector (1) to between 6.1 and 4.1 lbf.in (0.07 and 0.05 m.daN )

.
(12) Installation of the lockwire

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.

(a) Safety the electrical connector (1) to the bracket (4) with the 14QDC1Wire-Locking Dia: 0.5 mm (0.020 inch) CRES -.

Subtask 46-26-16-710-051-A ** ON A/C NOT FOR ALL

B. Test(s)
(1) Connect the Maintenance Electronic Device (with the LMF installed) to the FOMAX (Ref. AMM TASK 46-26-32-860-801).
(2) On the LMF main page, click the "A/L Cell Gatelink" button (the "A/L Cellular Gatelink" main page comes into view).
(3) On the LMF main page, make sure that the LED adjacent to the "A/L Cell Gatelink" button is green.
(4) Disconnect the Maintenance Electronic Device (with the LMF installed) from the FOMAX (Ref. AMM TASK 46-26-32-860-806).

5. Close-up
Subtask 46-26-16-410-050-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) Install ceiling panel 231CC (Ref. AMM TASK 25-23-41-400-001).

Subtask 46-26-16-865-052-A ** ON A/C NOT FOR ALL

B. Remove the safety clip(s) and the tag(s) and 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 46-26-16-862-050-A ** ON A/C NOT FOR ALL

C. De-energize the ground service network
(Ref. AMM TASK 24-42-00-862-001).

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