Operational Test of the Ignition System without CFDS [CFMB]

TASK 74-00-00-710-043-A-01
Operational Test of the Ignition System without CFDS

1. Reason for the Job
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 31-60-00-860-001-A	EIS Start Procedure
TASK 31-60-00-860-002-A	EIS Stop Procedure

3. Job Set-up
Subtask 74-00-00-861-051-A ** ON A/C NOT FOR ALL

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

Subtask 74-00-00-860-052-A ** ON A/C NOT FOR ALL

B. Do the EIS start procedure (upper and lower ECAM display units only) (Ref. AMM TASK 31-60-00-860-001).

Subtask 74-00-00-865-051-A ** ON A/C NOT FOR ALL

C. 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 74-00-00-860-053-A ** ON A/C NOT FOR ALL

D. Aircraft Maintenance Configuration
(1) On the MAINTENANCE PNL 50VU:
(a) Release the ENG / FADEC GND PWR / 1(2) pushbutton switch. The ON legend of this pushbutton switch comes on.
(2) On the ENG PNL 115VU, make sure that:
(a) The ENG/MODE/CRANK/NORM/IGN START selector switch is set to NORM.
(b) The ENG/MASTER 1(2) control switch is set to OFF.
(3) On the OVERHEAD CTL & IND PNL 22VU:

Make sure that the ON legend of the ENG/MAN START/1(2) pushbutton switch is off (the pushbutton switch is released out).

(4) On the HYD/FUEL PNL 40VU:
(a) Make sure that the OFF legends of all the FUEL/PUMPS pushbutton switches are on (the pushbutton switches are released out).

4. Procedure
Subtask 74-00-00-710-051-A ** ON A/C NOT FOR ALL

A. Test

ACTION	RESULT
1.On the ENG PNL 115VU: Set the ENG/MODE/CRANK/NORM/IGN START selector switch to IGN START.	On the upper ECAM display unit: The primary engine parameters come into view. On the lower ECAM display unit: The IGN indication and the starter valve symbols come into view. NOTE: Ignore the warnings that occur during the procedure that follows.
WARNING: MAKE SURE THAT THE INLET PRESSURE INDICATION FOR THE STARTER VALVE IS ZERO BEFORE YOU PUSH THE ENG/MAN START/1 (2) PUSHBUTTON SWITCH. 2.On the OVERHEAD CTL & IND CTL 22VU:
Push the ENG/MAN START/1(2) pushbutton switch.	The ON legend of this pushbutton switch comes on.
3.On the ENG PNL 115VU: Set the ENG/MASTER 1(2) control switch to ON.	On the engine 1(2): Make sure that the two igniter plugs make a noise. On the lower ECAM display unit, on the ENGINE page: The A and B indications come into view.
4.On the OVERHEAD C/B PNL 49VU: Open the circuit breaker 1JH.	On the engine 1(2): Make sure that only one igniter plug makes a noise.
5.On the REAR C/B PNL 121VU: Open the circuit breaker 3JH1 (3JH2).	On the engine 1(2): Make sure that there is no noise from the two igniter plugs.
6.On the OVERHEAD C/B PNL 49VU: Close the circuit breaker 1JH.	On the engine 1(2): Make sure that only one igniter plug makes a noise.
7.On the REAR C/B PNL 121VU: Close the circuit breaker 3JH1 (3JH2).	On the engine 1(2): Make sure that the two igniter plugs make a noise.
8.On the ENG PNL 115VU: Set the ENG/MASTER 1(2) control switch to OFF.	On the engine 1(2): Make sure that there is no noise from the two igniter plugs.
9.On the OVERHEAD CTL & IND CTL 22VU: Release the ENG/MAN START/1(2) pushbutton switch.	The ON legend of this pushbutton switch goes off. On the lower ECAM display unit, on the ENGINE page: The A and B indications go out of view.
10.On the ENG PNL 115VU: Set the ENG/MODE/CRANK/NORM/IGN START selector switch to NORM. NOTE: The ECU stays electrically supplied for 5 minutes after you set: the ENG/MASTER 1(2) lever to OFF. The ENG/MODE/CRANK/NORM/IGN START rotary selector to NORM. NOTE: The WARNING messages that appears during this procedure can be cleared by an ON/OFF switching of the ENG/MASTER 1(2) control switch.

5. Close-up
Subtask 74-00-00-860-054-A ** ON A/C NOT FOR ALL

A. Put the aircraft back to its initial configuration.
(1) On the MAINTENANCE PNL 50VU:
(a) Push the ENG / FADEC GND PWR / 1(2) pushbutton switch. The ON legend goes off.
(2) Do the EIS stop procedure: (Ref. AMM TASK 31-60-00-860-002).

Subtask 74-00-00-862-051-A ** ON A/C NOT FOR ALL

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

[Rev.10 from 2021] 2026.04.01 03:07:21 UTC