BITE Test of the IGGS without Bleed Air

TASK 47-31-34-740-001-A-01
BITE Test of the IGGS without 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.

1. Reason for the Job
Maintenance procedure to do a check of the Inert Gas Generation System (IGGS) without Bleed Air.
2. Job Set-up Information
A. 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 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

3. Job Set-up
Subtask 47-31-34-860-055-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) On the overhead panel, on ADIRS MSU 41VU:

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

(3) Do the EIS start procedure (upper ECAM DU and lower ECAM DU only)
(Ref. AMM TASK 31-60-00-860-001).
(4) On the MCDU, get access to the SYSTEM REPORT/TEST/AIR COND Pages (Ref. AMM TASK 31-32-00-860-002).

Subtask 47-31-34-865-057-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 47-31-34-740-054-A ** ON A/C NOT FOR ALL

A. BITE Test of the IGGS without 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.	On the MCDU Page managed by CSAS BITE. The CSAS/IGGS menu page comes into view.
2. 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/O BLEED legend.	The TEST W/O BLEED page comes into view.
	The IGGS self-test starts automatically. The legend TEST IN PROGRESS comes into view.
4. 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 47-31-34-860-056-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) Do the EIS stop procedure
(Ref. AMM TASK 31-60-00-860-002).
(3) On the overhead panel, on ADIRS MSU 41VU:

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

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

[Rev.10 from 2021] 2026.04.01 01:25:19 UTC