Operational Test of the Ignition System with the CFDS [IAE]

TASK 74-00-00-710-041-A
Operational Test of the Ignition System with the CFDS

FIN: 1000EM1 ** ON A/C NOT FOR ALL
FIN: 1000EM2 ** ON A/C NOT FOR ALL

1. Reason for the Job
Use this test to do an aural check of the igniter plug operation.
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 31-32-00-860-012-A	Procedure to Get Access to the SYSTEM REPORT/TEST/ENG Page
TASK 71-00-00-710-045-A	Test No.1 : Dry Motor Leak Check
Ignitor Test Indication
Ignitor Test Indication

3. Job Set-up
Subtask 74-00-00-861-055-A ** ON A/C NOT FOR ALL

A. Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).

Subtask 74-00-00-865-055-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
49VU	ENGINE/1 AND 2/IGN/SYS A	1JH	A03
FOR FIN: 1000EM1 (ENGINE1)
49VU	ENGINE/1/FADEC A/AND EIU 1	2KS1	A04
121VU	ENGINE/IGN/ENG1/SYS B	3JH1	P41
121VU	ENGINE/IGN/ENG1/SYS A BAT	2JH1	P39
121VU	ENGINE/ENG1/FADEC B/AND EIU 1	4KS1	R41
FOR FIN: 1000EM2 (ENGINE2)
49VU	ENGINE/2/FADEC A/AND EIU 2	2KS2	A05
121VU	ENGINE/IGN/ENG2/SYS B	3JH2	P42
121VU	ENGINE/IGN/ENG2/SYS A BAT	2JH2	P40
121VU	ENGINE/ENG2/FADEC B	4KS2	Q40

Subtask 74-00-00-869-053-A ** ON A/C NOT FOR ALL

C. On the MAINTENANCE PNL 50VU:
Make sure that the FADEC GND PWR 1(2) pushbutton switch is released.
The ON legend of this pushbutton switch is on.
Do an ENG 1(2) dry motor (Ref. AMM TASK 71-00-00-710-045) to remove the remaining fuel before you do the test.

4. Procedure
Subtask 74-00-00-710-057-A ** ON A/C NOT FOR ALL

A. Do this test.
(1) On the left or right MCDU get the SYSTEM REPORT/TEST page (Ref. AMM TASK 31-32-00-860-012).

WARNING: BEFORE YOU PUSH THE MAN START PUSHBUTTON SWITCH, MAKE SURE THAT, ON THE ECAM DISPLAY UNIT, THE PRESSURE AT THE STARTER VALVE INLET IS ZERO PSI. IF THE PRESSURE IS NOT ZERO PSI, THE ENGINE CAN ROTATE AND CAUSE INJURY.

(2) Select NEXT PAGE.

ACTION	RESULT
1.Push the line key adjacent to the ENG indication.	The ENG menu comes into view.
2.Push the line key adjacent to the FADEC 1A(2A) indication.	The FADEC 1A(2A) menu comes into view.
3.Push the line key adjacent to the SYSTEM TEST indication.	The SYSTEM TEST menu comes into view (Detail A).
4.Push the line key adjacent to the IGNITOR TEST indication.	The IGNITOR TEST menu comes into view (Detail B).
5.On the ENG PNL: A.Make sure that the ENG/MODE selector switch is in the NORM position.
B.Set the ENG/MASTER 1(2) control switch to ON.	SWITCH 1 ENABLED comes into view (Detail C).
6.Push the line key adjacent to TURN ON IGNITOR indication (Detail C).	IGNITOR 1 ON comes into view. Make sure that the igniter plug A of the engine 1(2) makes a noise at the same time (Detail D).
7.Push the line key adjacent to TURN OFF IGNITOR indication (Detail D).	TURN ON IGNITOR comes into view (Detail C). Make sure that the noise of the igniter plug A stops.
8.Push the line key adjacent to SWITCH 1 ENABLED indication (Detail C).	SWITCH 2 ENABLED comes into view (Detail E).
9.Push the line key adjacent to TURN ON IGNITOR indication (Detail E).	IGNITOR 2 ON comes into view (Detail F). Make sure that the igniter plug B of the engine 1(2) makes a noise at the same time.
10.Push the line key adjacent to TURN OFF IGNITOR indication (Detail F).	TURN ON IGNITOR comes into view. Make sure that the noise of the igniter plug B stops (Detail E).
11.On the ENG PNL: A.Set the ENG/MASTER 1(2) control switch to OFF.
12.Push the left line key adjacent to the RESELECT MASTER LEV OFF indication.	The SYSTEM TEST menu comes into view. NOTE: The RETURN indication does not show. To close the test page, use the line key which normally has the RETURN function. This key stays valid. NOTE: If failures are found during the test, you must use the GROUND SCANNING function, read the fault message on the screen and do the related troubleshooting.
13.Do the procedure again for the channel B of the FADEC 1(2).
14.Push the line key adjacent to the RETURN indication until the CFDS menu comes into view.	The CFDS menu comes into view.
15.Push the MCDU MENU key	The MCDU menu comes into view.

5. Close-up
Subtask 74-00-00-869-054-A ** ON A/C NOT FOR ALL

A. On the panel MAINTENANCE PNL 50VU:
Push the FADEC GND PWR 1(2) pushbutton switch. The ON legend goes off.

Subtask 74-00-00-862-055-A ** ON A/C NOT FOR ALL

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

[Rev.10 from 2021] 2026.04.01 03:07:57 UTC