BITE Test of the IGGS with Bleed Air

TASK 47-31-34-740-001-A
BITE Test of the IGGS with Bleed Air

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:

THERE ARE NO CAPS OR COVERS ON THE FUEL TANK VENTILATION DUCTS. CAPS OR COVERS WILL CAUSE OVERPRESSURE OR UNDERPRESSURE DAMAGE TO THE FUEL TANK.
NO PERSONS ARE NEAR THE FUEL TANK OR VENTILATION DUCTS OF THE FUEL TANK.

1. Reason for the Job
Maintenance procedure to do a check of the Inert Gas Generation System (IGGS) with Bleed Air.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	GROUND AIR-SUPPLY UNIT(HIGH PRESSURE)

B. Referenced Information

REFERENCE	DESIGNATION
TASK 12-33-21-618-001-A	Pre-conditioning through the LP Ground Connection (Aircraft Electrical Power Available)
TASK 12-33-21-618-001-A-01	Pre-conditioning through the HP Ground Connection
TASK 12-33-21-618-001-A-02	Pre-conditioning with the APU
TASK 12-33-21-618-001-A-03	Pre-conditioning through the LP Ground Connection (Aircraft Electrical Power Not Available)
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 24-41-00-862-002-A	De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01	De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02	De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 31-32-00-860-002-A	Procedure to Get Access to the SYSTEM REPORT/TEST/AIR COND Page
TASK 31-60-00-860-001-A	EIS Start Procedure
TASK 31-60-00-860-002-A	EIS Stop Procedure
TASK 49-00-00-860-006-A	APU Shutdown by External Power
TASK 49-00-00-860-006-A-01	APU Shutdown by Batteries
TASK 49-00-00-860-009-A	APU Shutdown by External Power (131-9(A))
TASK 49-00-00-860-009-A-01	APU Shutdown by Batteries (131-9(A))

3. Job Set-up
Subtask 47-31-34-860-050-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)
(2) Do the pre-conditioning of the APU (Ref. AMM TASK 12-33-21-618-001) or through the GROUND AIR-SUPPLY UNIT(HIGH PRESSURE) (Ref. AMM TASK 12-33-21-618-001).
(3) On the overhead panel, on ADIRS MSU 41VU:

Set the three OFF/NAV/ATT selector switches to the NAV position.

(4) Do the EIS start procedure (upper ECAM DU and lower ECAM DU only)
(Ref. AMM TASK 31-60-00-860-001).
(5) Do one of the applicable procedures that follow:
(a) With APU:
On the overhead panel on the AIR COND section of the control panel 30VU make sure that:

the PACK 1 pushbutton switch is in the ON position (the OFF legend is off).
the PACK 2 pushbutton switch is in the OFF position (the OFF legend is on).
the APU BLEED pushbutton switch is in the ON position (the ON legend is on)

(b) With GSE:
On the overhead panel on the AIR COND section of the control panel 30VU make sure that:

the PACK 1 pushbutton switch is in the ON position (the OFF legend is off).
the PACK 2 pushbutton switch is in the OFF position (the OFF legend is on).

(6) On the MCDU, get access to the SYSTEM REPORT/TEST/AIR COND Pages (Ref. AMM TASK 31-32-00-860-002).

Subtask 47-31-34-865-050-A ** ON A/C NOT FOR ALL

B. Make sure that this(these) circuit breaker(s) is(are) closed:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
121VU	IGGS/CTRL	7YA	N28
** ON A/C NOT FOR ALL
121VU	IGGS/CTRL	7YA	P28
** ON A/C NOT FOR ALL
122VU	CSAS / CTRL	1HW	U17

4. Procedure
Subtask 47-31-34-740-050-A ** ON A/C NOT FOR ALL

A. BITE Test (Self-Test of the IGGS) with Bleed-Air.

NOTE: During the test, obey the instructions shown on the terminal screen.

ACTION	RESULT
1. On the MCDU page managed by CFDIU Push the line key adjacent to the CSAS legend.	2. On the MCDU page managed by CSAS BITE. The CSAS/IGGS menu page comes into view.
On the MCDU page managed by CSAS BITE Push the line key adjacent to the TESTS legend.	On the MCDU Page The System Test page comes into view.
3. On the System Test Page: Push the line key adjacent to the TEST W BLEED legend.	The TEST W BLEED page comes into view.
4. Start the test. Push the line key adjacent to the START TEST legend.	The IGGS self-test starts The legend TEST IN PROGRESS comes into view.
5. Test Results. After the Test is completed, read the test results.	If the IGGS is serviceable the legend TEST OK (SYSTEM UNLATCHED) comes into view.

5. Close-up
Subtask 47-31-34-862-050-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) On the MCDU, push the line select key adjacent to the RETURN indication until the CFDS menu page comes into view.
(2) On the overhead panel, on the AIR COND section of the control panel 30VU:

Set the PACK 1 and PACK 2 pushbutton switches to the OFF position. The OFF legends come on and the FAULT legends go off.

(3) Do one of the applicable procedures that follow:
(a) With APU:

(b) With GSE:

Remove the ground support and maintenance equipment, the special and standard tools and all other items.

(4) Do the EIS stop procedure
(Ref. AMM TASK 31-60-00-860-002).
(5) On the overhead panel, on ADIRS MSU 41VU:

Set the three OFF/NAV/ATT selector switches to the OFF position.

(6) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002)

[Rev.10 from 2021] 2026.04.01 01:25:17 UTC