Installation of the Fuel Quantity Indicator

TASK 28-42-22-400-001-A
Installation of the Fuel Quantity Indicator

WARNING: MAKE SURE THAT THE FLIGHT CONTROL SAFETY-LOCKS AND THE WARNING NOTICES ARE IN POSITION.

WARNING: MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING GEAR. THIS WILL PREVENT UNWANTED MOVEMENT OF THE LANDING GEAR, AND THUS POSSIBLE INJURY TO PERSONS AND DAMAGE TO THE AIRCRAFT AND/OR EQUIPMENT.

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

WARNING: OBEY THE FUEL SAFETY PROCEDURES.

ZONE: 190
ZONE: 500
ZONE: 600
FIN: 6QT

1. Reason for the Job
Self Explanatory
2. Job Set-up Information
A. Consumable Materials

REFERENCE	DESIGNATION
(Material No.08BAA9)	Non Aqueous Cleaner-General - -
(Material No.14SBA1)	Textile-Lint free Cotton -

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
190	BELLY FAIR, AIR CONDITIONING & HYD COMPT
500	LEFT WING
600	RIGHT WING
622KB
192MB

C. Referenced Information

REFERENCE	DESIGNATION
TASK 28-00-00-910-001-A	Fuel Safety Procedures
TASK 28-42-00-710-001-A	Operational Test of the Fuel Quantity Indicating-System
TASK 28-42-00-740-001-A	Status Report (BITE)
Fuel Quantity Indicator 6QT ** ON A/C NOT FOR ALL
Fuel Quantity Indicator 6QT ** ON A/C NOT FOR ALL
Fuel Quantity Indicator 6QT ** ON A/C NOT FOR ALL
Fuel Quantity Indicator 6QT ** ON A/C NOT FOR ALL
Fuel Quantity Indicator 6QT ** ON A/C NOT FOR ALL
Fuel Quantity Indicator 6QT ** ON A/C NOT FOR ALL
Fuel Quantity Indicator 6QT ** ON A/C NOT FOR ALL
Fuel Quantity Indicator 6QT ** ON A/C NOT FOR ALL
Fuel Quantity Indicator 6QT ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 28-42-22-941-053-A

A. Safety Precautions
(1) Obey the fuel safety procedures (Ref. AMM TASK 28-00-00-910-001).
(2) If applicable, make sure that the SAFETY BARRIER(S) are in position.

Subtask 28-42-22-860-050-A ** ON A/C NOT FOR ALL

B. Aircraft Maintenance Configuration
(1) If applicable, make sure that the access platform is below access door 192MB.
(2) Make sure that access door 192MB is open.

NOTE: If you operate the access door with the battery power, Airbus recommends you not to keep the door open for a longer time than necessary.
If you operate the door for a longer time, the power of the battery will decrease.

Subtask 28-42-22-860-050-B ** ON A/C NOT FOR ALL

B. Aircraft Maintenance Configuration
(1) Make sure that the access platform is below the access panel 622KB.
(2) Make sure that the access panel 622KB is open.

NOTE: If operating in battery power, do not keep the door open longer than necessary because the battery can discharge.

Subtask 28-42-22-865-051-A

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
49VU	FUEL/FQI/CHAN/1	1QT	A13
** ON A/C NOT FOR ALL
121VU	FUEL/FQI/CHANNEL/1 AND 2	8QT	L26
** ON A/C ALL
121VU	FUEL/FQI/CHAN/2	2QT	M27
** ON A/C NOT FOR ALL
121VU	FUEL/FQI/CHANNEL/1 AND 2	8QT	L25

4. Procedure
Subtask 28-42-22-420-050-A

A. Preparation for Installation
(1) Clean the component interfaces and the adjacent areas with Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Make sure that the parts retained from the removed component are clean and in the correct condition.

Subtask 28-42-22-420-051-A

B. Installation of Fuel Quantity Indicator 6QT
(1) Remove the CAP-BLANKING from each electrical connector and receptacle.

CAUTION: DO NOT PULL THE INDICATOR TOO FAR AND DO NOT LET IT HANG ON THE ELECTRICAL CABLE. THIS WILL PREVENT DAMAGE TO THE ELECTRICAL CABLE.

CAUTION: DO NOT TOUCH THE CONNECTOR PINS OR OTHER CONDUCTORS ON THE COMPONENT DURING THE PROCEDURE. IF YOU TOUCH THESE CONDUCTORS, ELECTROSTATIC DISCHARGE CAN CAUSE DAMAGE TO COMPONENT.

CAUTION: MAKE SURE THAT THE ELECTRICAL CONNECTORS ARE CLEAN BEFORE YOU DISCONNECT OR CONNECT THEM. CONTAMINATION ON THE ELECTRICAL CONNECTORS CAN CAUSE DAMAGE TO EQUIPMENT.

(2) Connect the electrical plug (1).
(3) Install the indicator (2) in the mounting frame back-plate. Make sure the spigot engages correctly in the mounting frame back-plate.
(4) Tighten the quick-release fasteners (3).

Subtask 28-42-22-865-052-A

C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
49VU	FUEL/FQI/CHAN/1	1QT	A13
** ON A/C NOT FOR ALL
121VU	FUEL/FQI/CHANNEL/1 AND 2	8QT	L26
** ON A/C ALL
121VU	FUEL/FQI/CHAN/2	2QT	M27
** ON A/C NOT FOR ALL
121VU	FUEL/FQI/CHANNEL/1 AND 2	8QT	L25

Subtask 28-42-22-710-050-A

D. Test
(1) Do an operational test of the fuel quantity indicator lights (Ref. AMM TASK 28-42-00-710-001).
(2) Do a status report (BITE) of the fuel quantity indicating system (Ref. AMM TASK 28-42-00-740-001).

5. Close-up
Subtask 28-42-22-410-050-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) Close access door 192MB.

Subtask 28-42-22-410-050-B ** 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 the access panel 622KB.

Subtask 28-42-22-942-050-A

B. Removal of Equipment
(1) Remove the WARNING NOTICE(S).
(2) Remove the access platform(s).
(3) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

[Rev.10 from 2021] 2026.04.02 06:18:08 UTC