Operational Test of the FCDC

TASK 27-96-00-710-001-A
Operational Test of the FCDC

ZONE: 210

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
210	CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD

B. 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 27-96-00-860-058-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 23VU, make sure that:

The FLT CTL/ELAC 1 and FLT CTL/SEC 1 pushbutton switches are pushed (on these pushbutton switches, the FAULT and OFF legends are off).

(3) On the overhead panel 24VU, make sure that:

The FLT CTL/ELAC 2, FLT CTL/SEC 2 and FLT CTL/SEC 3 pushbutton switches are pushed (on these pushbutton switches, the FAULT and OFF legends are off).

(4) Do the EIS start procedure (Ref. AMM TASK 31-60-00-860-001).

Subtask 27-96-00-865-055-A

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/ELAC1/NORM/SPLY	15CE1	B11
49VU	FLIGHT CONTROLS/FCDC1/SPLY	20CE1	B10
49VU	FLIGHT CONTROLS/SEC1/NORM/SPLY	21CE1	B08
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/ELAC1/NORM/SPLY	15CE1	B06
49VU	FLIGHT CONTROLS/FCDC1/SPLY	20CE1	B05
49VU	FLIGHT CONTROLS/SEC1/NORM/SPLY	21CE1	B03
** ON A/C NOT FOR ALL
121VU	PTR/SPLY	6TW	J21
121VU	CFDS/CFDIU/SPLY	2TW	J18
121VU	CFDS/CFDIU/BACK/UP	8TW	J17
** ON A/C ALL
121VU	FLIGHT CONTROLS/FCDC2/SPLY	20CE2	Q20
121VU	FLIGHT CONTROLS/SEC3/SPLY	21CE3	Q19
121VU	FLIGHT CONTROLS/SEC2/SPLY	21CE2	Q18
121VU	FLIGHT CONTROLS/ELAC2/NORM/SPLY	15CE2	R20
** ON A/C NOT FOR ALL
121VU	PTR/SPLY	6TW	J44
121VU	CFDS/CFDIU/SPLY	2TW	J41
121VU	CFDS/CFDIU/BACK/UP	8TW	J40

4. Procedure
Subtask 27-96-00-710-055-A

A. Do this test:

ACTION	RESULT
1.On the circuit breaker panel 121VU: - Open the C/B 20CE2.	On the upper ECAM display unit: - The F/CTL FCDC2 FAULT message is shown.
2.On the center pedestal, on the ECAM control panel: - Push the F/CTL key.	On the lower ECAM display unit, the F/CTL page comes into view. Make sure that: - There are no crosses on the EFCS servocontrols. On the upper ECAM display unit, make sure that: - No F/CTL FCDC1 FAULT message is shown.
3.On the circuit breaker panel 121VU: - Close the C/B 20CE2.	On the upper ECAM display unit: - The F/CTL FCDC2 FAULT message goes out of view.
4.On the circuit breaker panel 49VU: - Open the C/B 20CE1.	On the upper ECAM display unit: - The F/CTL FCDC1 FAULT message is shown. - Make sure that no F/CTL FCDC2 FAULT message is shown. On the lower ECAM display unit, on the F/CTL page: - Make sure that there are no crosses on the EFCS servocontrols.
5.On the circuit breaker panel 49VU: - Close the C/B 20CE1.	On the upper ECAM display unit: - The F/CTL FCDC1 FAULT message goes out of view.

5. Close-up
Subtask 27-96-00-860-059-A

A. Put the aircraft back to its initial configuration.
(1) Do the EIS stop procedure (Ref. AMM TASK 31-60-00-860-002).
(2) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).

[Rev.10 from 2021] 2026.04.01 07:14:35 UTC