Check of the Fuel Quantity Indicating Computer Status

TASK 28-42-00-040-002-A
Check of the Fuel Quantity Indicating Computer Status

WARNING: PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:

THE FLIGHT CONTROLS
THE FLIGHT CONTROL SURFACES
THE LANDING GEAR AND THE RELATED DOORS
COMPONENTS THAT MOVE.

MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.

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.

1. Reason for the Job

NOTE: This deactivation task is not related to an AFM-CDL/MMEL item

2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	SAFETY BARRIER(S)

B. Referenced Information

REFERENCE	DESIGNATION
TASK 12-11-28-650-003-A	Pressure Refuel with Automatic Control
TASK 28-25-00-650-001-A	Pressure Defuel
TASK 28-25-00-869-001-A	Fuel Transfer
TASK 31-32-00-860-001-A	Procedure to Get Access to the SYSTEM REPORT/TEST Menu Page
TASK 31-60-00-860-001-A	EIS Start Procedure
TASK 34-10-00-860-004-A	Inertial Reference (IR) Alignment-Procedure
TASK 34-10-00-860-004-A-01	Automatic Inertial Reference (IR) Alignment-Procedure
TASK 34-10-00-860-004-A-02	Inertial Reference (IR) Alignment-Procedure to do a Check of the Links between each Flight Management and Guidance Computer (FMGC) and the three Air Data/Inertial Reference Units (ADIRUs)

3. Job Set-up
Subtask 28-42-00-941-052-A

A. Safety Precautions
(1) As necessary, use the applicable SAFETY BARRIERS, specified by the operator's instructions and your local regulations.

Subtask 28-42-00-860-065-A

B. Aircraft Maintenance Configuration
(1) Do an IR alignment (Ref. AMM TASK 34-10-00-860-004).
(2) Do the EIS start procedure (ECAM only) (Ref. AMM TASK 31-60-00-860-001), then:
(a) On the ECAM control panel (CP), push (in) the FUEL pushbutton switch (P/BSW).
(b) Make sure that the FUEL page shows on the ECAM lower display-unit (DU).
(c) On the ECAM CP, push (in) the STS P/BSW.
(d) Make sure that the STATUS page shows on the ECAM lower DU.
(e) Make sure that there are no FUEL messages under MAINTENANCE.

Subtask 28-42-00-650-056-B ** ON A/C NOT FOR ALL

C. Fuel Configuration
(1) Refuel the fuel tanks as follows (Ref. AMM TASK 12-11-28-650-003):

the wing tank to 1000 kg (2204.6220 lb) minimum
the center tank to 1500 kg (3306.9330 lb) minimum.

Subtask 28-42-00-650-056-C ** ON A/C NOT FOR ALL

C. Fuel Configuration
(1) Refuel the fuel tanks as follows (Ref. AMM TASK 12-11-28-650-003):

the applicable wing tank to 1500 kg (3306.9330 lb) minimum
the center tank to 2000 kg (4409.2440 lb) minimum.

4. Procedure
Subtask 28-42-00-040-050-A ** ON A/C NOT FOR ALL

A. System Report (BITE)
(1) Do this test:

NOTE: When you push (in) the line key adjacent to FUEL> indication, the Multipurpose Display and Control Unit (MCDU) can initially show CH1 or CH2.

ACTION	RESULT
1.On the MCDU, get access to the FUEL page (Ref. AMM TASK 31-32-00-860-001).	The MCDU shows the CH1 (CH2) FUEL menu.
2.Push (in) the NEXT PAGE key.	The second FUEL menu page is shown.
3.Push (in) the line key adjacent to <FQIS STATUS indication.	The MCDU shows: CH1 GRADE1 CH2 GRADE1 NO FAULTS DETECTED.
4.Push (in) the line key adjacent to <RETURN indication two times.	The MCDU shows the CH1 (CH2) FUEL menu.
5.Push (in) the line key adjacent to SELECT CHANNEL 2 (1).	The MCDU shows the CH2 (CH1) FUEL menu.
6.Push (in) the line key adjacent to <FQIS STATUS indication.	The MCDU shows: CH1 GRADE1 CH2 GRADE1 NO FAULTS DETECTED.
7.Push (in) the line key adjacent to <RETURN indication two times.	The MCDU shows the CH1 (CH2) FUEL menu.
8.Push the line key <RETURN frequently until the CFDS menu page is shown.

Subtask 28-42-00-040-050-B ** ON A/C NOT FOR ALL

A. System Report (BITE)
(1) Do this test:

NOTE: When you push (in) the line key adjacent to FUEL> indication, the Multipurpose Display and Control Unit (MCDU) will initially show the master channel. The master channel can be either CH1 or CH2.

ACTION	RESULT
1.On the MCDU, get access to the FUEL page (Ref. AMM TASK 31-32-00-860-001).	The MCDU shows the CH1 (CH2) FUEL menu.
2.Push (in) the line key adjacent to <FQIS STATUS indication.	The MCDU shows: FQIS STATUS (GRADES=1 1) NO FAULT DETECTED.
3.Push (in) the line key adjacent to <RETURN indication.	The MCDU shows the CH1 (CH2) FUEL menu.
4.Push the line key <RETURN frequently until the CFDS menu page is shown.

5. Close-up
Subtask 28-42-00-650-057-A

A. Fuel Configuration
(1) Refuel, defuel or transfer fuel as necessary (Ref. AMM TASK 12-11-28-650-003), (Ref. AMM TASK 28-25-00-650-001) or (Ref. AMM TASK 28-25-00-869-001).

Subtask 28-42-00-860-066-A

B. Aircraft Maintenance Configuration
(1) Set the upper and lower display BRT switches, on the ECAM CP, to OFF.
(2) Set the OFF/NAV/ATT selector switches of the IR1, IR2 and IR3, on the cockpit overhead panel, to OFF.
(3) De-energize the aircraft electrical circuits

Subtask 28-42-00-942-053-A

C. Removal of Equipment
(1) Remove the safety barriers.
(2) Make sure that the work area is clean and clear of tools and other items.
(3) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

[Rev.10 from 2021] 2026.04.02 06:18:04 UTC