FADEC Ground Test Without the CFDS [CFMI]

TASK 73-29-00-710-040-A-01
FADEC Ground Test Without the CFDS

WARNING: DO NOT TOUCH THE PROBES DURING OR IMMEDIATELY AFTER THIS PROCEDURE. THE PROBES WILL BE HOT AND CAN BURN YOU.

CAUTION: REMOVE THE PROTECTIVE COVERS FROM THE PROBES BEFORE YOU DO THIS PROCEDURE.

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

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	AR	WARNING NOTICE(S)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
FOR [1000EM1] (ENGINE-1)
437AL, 438AL, 438AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR

C. 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 71-00-00-710-003-A	Engine Automatic Start
TASK 71-00-00-710-028-A	Engine Shutdown
TASK 71-13-00-010-040-A	Opening of the Fan Cowl Doors
TASK 71-13-00-410-040-A	Closing of the Fan Cowl Doors

3. Job Set-up
Subtask 73-29-00-941-052-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) On the center pedestal, on the ENG panel 115VU:
(a) Put a WARNING NOTICE(S) to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2).

Subtask 73-29-00-010-050-A ** ON A/C NOT FOR ALL

B. Open the fan cowl doors: (Ref. AMM TASK 71-13-00-010-040)
(1) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR

Subtask 73-29-00-020-050-A ** ON A/C NOT FOR ALL

C. On the front face of the accessory gearbox, disconnect the alternator from the channel opposite to that being tested.
(1) For channel A, disconnect the electrical connector J10.
(2) For channel B, disconnect the electrical connector J9.

Subtask 73-29-00-869-052-A ** ON A/C NOT FOR ALL

D. When you test the channel A do the following step.

Subtask 73-29-00-865-053-A ** ON A/C NOT FOR ALL

E. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	COM/CVR/SPLY	2RK	E14
49VU	COM/CVR/CTL	4RK	E13
121VU	RCDR/DFDR	7TU	K16
FOR FIN: 1000EM1 (ENGINE1)
121VU	ENGINE/ENG1/FADEC B/AND EIU 1	4KS1	R41
FOR FIN: 1000EM2 (ENGINE2)
121VU	ENGINE/ENG2/FADEC B	4KS2	Q40

Subtask 73-29-00-869-053-A ** ON A/C NOT FOR ALL

F. When you test the channel B do the step below.

Subtask 73-29-00-865-054-A ** ON A/C NOT FOR ALL

G. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	COM/CVR/SPLY	2RK	E14
49VU	COM/CVR/CTL	4RK	E13
121VU	RCDR/DFDR	7TU	K16
FOR FIN: 1000EM1 (ENGINE1)
49VU	ENGINE/1/FADEC A/AND EIU 1	2KS1	A04
FOR FIN: 1000EM2 (ENGINE2)
49VU	ENGINE/2/FADEC A/AND EIU 2	2KS2	A05

Subtask 73-29-00-861-053-A ** ON A/C NOT FOR ALL

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

4. Procedure
Subtask 73-29-00-710-053-A ** ON A/C NOT FOR ALL

A. Do this Test:

NOTE: This procedure is applicable to do the check of all the faults, but not of the position faults. If one of the position faults occurred before, during a leg (VBV, VSV, FMV, LPTC, HPTC, RAC): - do an engine run at 50 percent N1, in two steps.
The first step must be a slow accel to 50 percent N1 (in approximately 20 - 30 seconds). The second step must be the normal fast accel to 50 percent N1. You must do 2 runs because with a cross channel disconnected, there is no longer redundancy: so if the fault was not cleared, the engine can stall on a fast accel.

(1) Start the engine (Ref. AMM TASK 71-00-00-710-003) and let it become stable at minimum idle.
(2) Make sure that the fault that you try to find does not come on the ECAM warning display.
(3) Stop the engine (Ref. AMM TASK 71-00-00-710-028).

5. Close-up
Subtask 73-29-00-862-053-A ** ON A/C NOT FOR ALL

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

Subtask 73-29-00-420-050-A ** ON A/C NOT FOR ALL

B. On the front face of the accessory gearbox, connect the electrical connector to the alternator.
(1) Tighten the connector with your hand plus one eighth of a turn with soft nose pliers.

Subtask 73-29-00-865-055-A ** ON A/C NOT FOR ALL

C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	COM/CVR/SPLY	2RK	E14
49VU	COM/CVR/CTL	4RK	E13
121VU	RCDR/DFDR	7TU	K16
FOR FIN: 1000EM1 (ENGINE1)
49VU	ENGINE/1/FADEC A/AND EIU 1	2KS1	A04
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/ENG2/FADEC B	4KS2	Q40

Subtask 73-29-00-410-050-A ** ON A/C NOT FOR ALL

D. Close the fan cowl doors: (Ref. AMM TASK 71-13-00-410-040)
(1) FOR [1000EM1] (ENGINE-1)
438AL 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR

[Rev.10 from 2021] 2026.04.02 06:35:42 UTC