Operational Test of the THS Actuator Electrical Control (Activation for BITE Test)

TASK 27-96-00-710-022-A
Operational Test of the THS Actuator Electrical Control (Activation for BITE Test)

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.

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.

ZONE: 210

1. Reason for the Job
This test is applicable only during a trouble-shooting action.
This test activates a BITE test on the EFCS in a special configuration defined by the trouble-shooting procedure.
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
TSM 27-96-00-810-802	Operational Test of the THS Actuator Electrical Control or of the ELAC 1 and SEC 1 & 2 on Pitch Control not ok

3. Job Set-up
Subtask 27-96-00-860-056-B

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

Release the FLT CTL/ELAC1 and FLT CTL/SEC1 pushbutton switches (on these pushbutton switches, the OFF legend comes on).

(3) On the panel 24VU:

Release the FLT CTL/ELAC2, FLT CTL/SEC2 and FLT CTL/SEC3 pushbutton switches (on these pushbutton switches, the OFF legend comes on).

(4) On the center pedestal, on the ECAM control panel, push the F/CTL pushbutton switches (on the lower ECAM display unit, the F/CTL page comes into view).
(5) On the panel 23VU:

Push the FLT CTL/ELAC1 pushbutton switch (on this pushbutton switch, the OFF legend goes off).

(6) On the panel 24VU:

Push the FLT CTL/ELAC2 pushbutton switch (on this pushbutton switch, the OFF legend goes off).

(7) Wait 30 seconds.
(8) On the panel 23VU:

Release the FLT CTL/ELAC1 pushbutton switch (on this pushbutton switch, the OFF legend comes on).

(9) On the panel 24VU:

Release the FLT CTL/ELAC2 pushbutton switch (on this pushbutton switch, the OFF legend comes on).

(10) Pressurize the aircraft hydraulic systems
(Ref. AMM TASK 29-10-00-863-003) (Ref. AMM TASK 29-23-00-863-001) (Ref. AMM TASK 29-24-00-863-001).

Subtask 27-96-00-010-066-A

B. 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 27-96-00-865-087-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/THS/ACTR/MOT2	19CE2	B09
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/THS/ACTR/MOT2	19CE2	B04
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/SEC2/SPLY	21CE2	Q18
121VU	FLIGHT CONTROLS/THS ACTR/MOT3	19CE3	Q17
121VU	FLIGHT CONTROLS/THS ACTR/MOT1	19CE1	Q16
121VU	FLIGHT CONTROLS/ELAC2/NORM/SPLY	15CE2	R20

4. Procedure
Subtask 27-96-00-710-077-A

A. Operational Test of the THS Actuator Electrical Control (Activation For BITE Test)

ACTION	RESULT
1.Ground setting with the ELAC2
A.On the center pedestal: move the pitch trim control wheel to the 13.5°UP position.
B.On the panel 24VU: push the FLT CTL/ELAC2 pushbutton switch.	The OFF legend of this pushbutton switch goes off.
	On the center pedestal: the pitch trim control wheel goes back to 0.
C.On the panel 24VU: release the FLT CTL/ELAC2 pushbutton switch.	The OFF legend of this pushbutton switch comes on.
2.Ground setting with the ELAC1.
A.On the center pedestal: move the pitch trim control wheel to the 13.5°UP position.
B.On the panel 23VU: push the FLT CTL/ELAC1 pushbutton switch.	The OFF legend of this pushbutton switch goes off.
	On the center pedestal: the pitch trim control wheel goes back to 0.
A. On the panel 23VU: release the FLT CTL/ELAC1 pushbutton switch.	The OFF legend of this pushbutton switch comes on.
3.Ground setting with the SEC1.
A.On the center pedestal: move the pitch trim control wheel to the 13.5°UP position.
B.On the panel 23VU: push the FLT CTL/SEC1 pushbutton switch.	The OFF legend of this pushbutton switch goes off.
	On the center pedestal: the pitch trim control wheel goes back to 0.
A. On the panel 23VU: release the FLT CTL/SEC1 pushbutton switch.	The OFF legend of this pushbutton switch comes on.
4.Ground setting with the SEC2.
A.On the center pedestal: move the pitch trim control wheel to the 13.5°UP position.
B.On the panel 24VU: push the FLT CTL/SEC2 pushbutton switch.	The OFF legend of this pushbutton switch goes off.
	On the center pedestal: the pitch trim control wheel goes back to 0.
NOTE: If the test fails TSM 27-96-00-810-802.

5. Close-up
Subtask 27-96-00-860-057-A

A. Put the aircraft back to its initial configuration.
(1) On the panel 23VU:

Push the FLT CTL/ELAC1 and FLT CTL/SEC1 pushbutton switches (on these pushbutton switches, the OFF legends go off).

(2) On the panel 24VU:

Push the FLT CTL/ELAC2 and FLT CTL/SEC3 pushbutton switches (on these pushbutton switches, the OFF legends go off).

(3) Depressurize the aircraft hydraulic systems
(Ref. AMM TASK 29-10-00-864-003) (Ref. AMM TASK 29-23-00-864-001).
(4) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).

Subtask 27-96-00-410-055-A

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] 2026.04.01 00:00:03 UTC