Operational Test of the Centering Function

TASK 27-34-00-710-002-A
Operational Test of the Centering Function

WARNING: MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS SURFACES ARE CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.

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.

ZONE: 210

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

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
210	CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD
822

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 29-10-00-863-003-A	Pressurize the Blue Hydraulic System with a Hydraulic Ground Power-Cart
TASK 29-10-00-863-003-A-01	Pressurize the Blue Hydraulic System with the Blue Electric Pump
TASK 29-10-00-864-003-A	Depressurize the Blue Hydraulic System
TASK 29-23-00-863-001-A	Pressurize the Green Hydraulic System from the Yellow Hydraulic System through the PTU with the Electric Pump
TASK 29-23-00-864-001-A	Depressurize the Green and Yellow Hydraulic Systems after Operation of the PTU
TASK 29-24-00-863-001-A	Pressurize the Yellow Hydraulic System with the Electric Pump
TASK 29-24-00-864-001-A	Depressurize the Yellow Hydraulic System
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 27-34-00-010-061-B

A. Get Access.
(1) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position at the access door 822.
(2) Open the access door 822
(3) On the battery power center 105VU:

loosen the two screws and remove the protective cover

Subtask 27-34-00-860-056-A

B. Aircraft Maintenance Configuration.
(1) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
(2) On the overhead panel 23VU:

release the FLT CTL/ELAC 1 and FLT CTL/SEC 1 pushbutton switches (on these pushbutton switches, the OFF legends come on).

(3) On the overhead panel 24VU:
(a) Make sure that the FLT CTL/ELAC 2 and FLT CTL/SEC 3 pushbutton switches are pushed (on these pushbutton switches, the OFF and FAULT legends are off).
(b) Release the FLT CTL/SEC 2 pushbutton switch (on this pushbutton switch, the OFF legend comes on).
(4) Pressurize the aircraft hydraulic systems (Ref. AMM TASK 29-23-00-863-001) (Ref. AMM TASK 29-24-00-863-001) (Ref. AMM TASK 29-10-00-863-003).
(5) On the maintenance panel 50VU:
(a) Make sure that the HYD LEAK MEASUREMENT VALVES/G and HYD LEAK MEASUREMENT VALVES/Y pushbutton switches are pushed (on these pushbutton switches, the OFF and FAULT legends are off).
(b) Release the HYD LEAK MEASUREMENT VALVES/B pushbutton switch (on this pushbutton switch, the OFF legend comes on).
(6) Do the EIS start procedure (Ref. AMM TASK 31-60-00-860-001).
(7) On the center pedestal, on the ECAM control panel, push the F/CTL pushbuttton switch (on the lower ECAM display unit, the F/CTL page comes into view).

NOTE: On the F/CTL page, Make sure that the indexes of the L/ELEV and R/ELEV indicators are in the neutral position on the vertical scale.

Subtask 27-34-00-865-056-A

C. 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 ALL
105VU	FLIGHT CONTROLS/ELAC2/STBY SPLY	16CE2	A02
105VU	FLT CTL/ELAC1/STBY SPLY	16CE1	A01
105VU	FLT CTL/SEC1/STBY SPLY	22CE	B01
121VU	FLIGHT CONTROLS/FCDC2/SPLY	20CE2	Q20
121VU	FLIGHT CONTROLS/SEC2/SPLY	21CE2	Q18
121VU	FLIGHT CONTROLS/ELAC2/NORM/SPLY	15CE2	R20

4. Procedure
Subtask 27-34-00-710-054-A

A. Operational Test of the Centering Function.

ACTION	RESULT
1.On the CAPT (F/O) lateral console: pull the side stick controller rearward until it touches the stop. Hold it in this position.	On the lower ECAM display unit, on the F/CTL page: the indexes of the L/ELEV and R/ELEV indicators move up.
2.On the overhead panel 24VU: release the FLT CTL/ELAC 2 pushbutton switch.	On the overhead panel 24VU: the OFF legend of the FLT CTL/ELAC 2 pushbutton switch comes on.
	On the lower ECAM display unit, on the F/CTL page: the ELAC 2 indication becomes amber. the indication of the elevators position is in amber crosses.
	On the ground, visually make sure that the elevators are in the neutral position.
3.On the CAPT (F/O) lateral console: move and keep the side stick controller in the neutral position.
4.On the overhead panel 24VU: push the FLT CTL/ELAC 2 pushbutton switch.	On the overhead panel 24VU: the OFF legend of the FLT CTL/ELAC 2 pushbutton switch goes off. the FAULT legend of the FLT CTL/ELAC 2 pushbutton switch comes on then goes off.
5.On the CAPT (F/O) lateral console: push the side stick controller forward until it touches the stop. Hold it in this position.	On the lower ECAM display unit, on the F/CTL page: the indexes of the L/ELEV and R/ELEV indicators move down.
6.On the overhead panel 24VU: release the FLT CTL/ELAC 2 pushbutton switch.	On the overhead panel 24VU: the OFF legend of the FLT CTL/ELAC 2 pushbutton switch comes on.
	On the lower ECAM display unit, on the F/CTL page: the ELAC 2 indication becomes amber. the indication of the elevators position is in amber crosses.
	On the ground, visually make sure that the elevators are in neutral position.
7.On the CAPT (F/O) lateral console: move and keep the side stick controller in the neutral position.
8.On the overhead panel 23VU: push the FLT CTL/ELAC 1 pushbutton switch.	On the overhead panel 23VU: the OFF legend of the FLT CTL/ELAC 1 pushbutton switch goes OFF. the FAULT legend of the FLT CTL/ELAC 1 pushbutton switch comes on then goes off.
9.On the maintenance panel 50VU: push the HYD LEAK MEASUREMENT VALVES/B pushbutton switch. release the HYD LEAK MEASUREMENT VALVES/G and HYD LEAK MEASUREMENT VALVES/Y pushbutton switches.	On the maintenance panel 50VU: the OFF legend of the HYD LEAK MEASUREMENT VALVES/B pushbutton switch goes off. the OFF legends of the HYD LEAK MEASUREMENT VALVES/G and HYD LEAK MEASUREMENT VALVES/Y pushbutton switches come on.
10.On the lower ECAM display unit, on the F/CTL page: make sure that the indexes of the L/ELEV and R/ELEV indicators are in the neutral position.
11.On the CAPT (F/O) lateral console: pull the side stick controller rearward until it touches the stop. Hold it in this position.	On the lower ECAM display unit, on the F/CTL page: the indexes of the L/ELEV and R/ELEV indicators move up.
12.On the overhead panel 23VU: release the FLT CTL/ELAC 1 pushbutton switch.	On the overhead panel 23VU: the OFF legend of the FLT CTL/ELAC 1 pushbutton switch comes on.
	On the lower ECAM display unit, on the F/CTL page: the ELAC 1 indication becomes amber. the indication of the elevators position is in amber crosses.
	On the ground, visually make sure that the elevators are in the neutral position.
13.On the CAPT (F/O) lateral console: move and keep the side stick controller in the neutral position.
14.On the overhead panel 23VU: push the FLT CTL/ELAC 1 pushbutton switch.	On the overhead panel 23VU: the OFF legend of the FLT CTL/ELAC 1 pushbutton switch goes off. the FAULT legend of the FLT CTL/ELAC 1 pushbutton switch comes on then goes off.
15.On the CAPT (F/O) lateral console: push the side stick controller forward until it touches the stop. Hold it in this position.	On the lower ECAM display unit, on the F/CTL page: the indexes of the L/ELEV and R/ELEV indicators move down.
16.On the overhead panel 23VU: release the FLT CTL/ELAC 1 pushbutton switch.	On the overhead panel 23VU: the OFF legend of the FLT CTL/ELAC 1 pushbutton switch comes on.
	On the lower ECAM display unit, on the F/CTL page: the ELAC 1 indication becomes amber. the indication of the elevators position is in amber crosses.
	On the ground, visually make sure that the elevators are in the neutral position.
17.On the CAPT (F/O) lateral console: move the side stick controller to the neutral position.

5. Close-up
Subtask 27-34-00-860-057-A

A. Put the Aircraft back to its Initial Configuration.
(1) On the maintenance panel 50VU:

Push the HYD LEAK MEASUREMENT VALVES/G and HYD LEAK MEASUREMENT VALVES/Y pushbutton switches (on these pushbutton switches the OFF legends go off).

(2) On the overhead panel 23VU:

Push the FLT CTL/ELAC 1 and FLT CTL/SEC 1 pushbutton switches (on these pushbutton switches, the OFF legends go off).

(3) On the overhead panel 24VU:

Push the FLT CTL/ELAC 2 and FLT CTL/SEC 2 pushbutton switches (on these pushbutton switches, the OFF legends go off).

(4) Depressurize the aircraft hydraulic systems (Ref. AMM TASK 29-23-00-864-001) (Ref. AMM TASK 29-24-00-864-001) (Ref. AMM TASK 29-10-00-864-003).
(5) Do the EIS stop procedure (Ref. AMM TASK 31-60-00-860-002).
(6) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).

Subtask 27-34-00-410-061-B

B. Close Access.
(1) Install the protective cover on the battery power center 105VU.
(2) Tighten the two screws.
(3) Close the access door 822
(4) Remove the access platform(s).

[Rev.10 from 2021] 2026.03.31 23:50:04 UTC