System Test of the Rudder Trim

TASK 27-22-00-730-001-A
System Test of the Rudder Trim

ZONE: 210
ZONE: 325

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 10M (33 FT) - ADJUSTABLE
98A27308005000	1	PROTRACTOR-CONTROL SURFACE DEFLECTION
TR31-101	1	PROTRACTOR - CONTROL SURFACE
TR60-1	1	RIGMASTER SYSTEM-FLIGHT CONTROLS

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
210	CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD
325	VERTICAL STABILIZER TRAILING EDGE

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 27-22-00-860-056-A

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/FAC1 pushbutton switch is pushed (on this pushbutton switch, the FAULT and OFF legends are off).
(3) On the overhead panel 24VU, make sure that the FLT CTL/FAC2 pushbutton switch is pushed (on this pushbutton switch, the FAULT and OFF legends are off).
(4) On the panel 110VU, make sure that the RUD TRIM indicator shows 0.
(5) Do the EIS start procedure (Ref. AMM TASK 31-60-00-860-001).
(6) 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).
(7) On the ECAM control panel, push the F/CTL key (on the lower ECAM display unit, the F/CTL page comes into view).
(8) Put an ACCESS PLATFORM 10M (33 FT) - ADJUSTABLE in position at the zone 325.
(9) Install the 98A27308005000 PROTRACTOR-CONTROL SURFACE DEFLECTION, or TR60-1 RIGMASTER SYSTEM-FLIGHT CONTROLS, or TR31-101 PROTRACTOR - CONTROL SURFACE on the rudder surface.

Subtask 27-22-00-865-053-A

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	AUTO FLT/FAC1/28VDC	5CC1	B04
49VU	AUTO FLT/FAC1/26VAC	14CC1	B03
** ON A/C NOT FOR ALL
49VU	AUTO FLT/FAC1/28VDC	5CC1	H10
49VU	AUTO FLT/FAC1/26VAC	14CC1	H09
** ON A/C ALL
121VU	AUTO FLT/FAC2/28VDC	5CC2	M19
121VU	AUTO FLT/FAC2/26VAC	14CC2	M18

4. Procedure
Subtask 27-22-00-730-050-A ** ON A/C NOT FOR ALL

A. System Test of the Rudder Trim

ACTION	RESULT
1.On the center pedestal, on the panel 110VU:
turn the RUD TRIM selector switch in the NOSE/R position and hold it in this position.	The rudder moves to the right. The protractor shows a value higher than 20 deg. On the panel 110VU, on the RUD TRIM position indicator: the numbers change until the value R 20 deg. plus or minus 1 comes into view. On the center instrument panel, on the lower ECAM display unit: the pointer of the RUD indicator and the index that show the trim value move to the right. NOTE: In some cases, the pointer of the RUD indicator is not in line with the trim index.
2.Release the RUD TRIM selector switch.	There is no change.
3.Turn the RUD TRIM selector switch in the NOSE/L position and hold it in this position.	The rudder moves to the left. The protractor shows a value higher than 20 deg. On the panel 110VU, on the RUD TRIM position indicator: the numbers change until the value L 20 deg. plus or minus 1 comes into view. On the center instrument panel, on the lower ECAM display unit: the pointer of the RUD indicator and the index that show the trim value move to the left. NOTE: In some cases, the pointer of the RUD indicator is not in line with the trim index.
4.Turn the RUD TRIM selector switch to the NOSE/R position until the rudder moves to the zero position.	The rudder moves to the zero position. The protractor shows the value 0 plus or minus 0.3 deg. On the panel 110VU, on the RUD TRIM position indicator: the numbers change until the value L or R 0 deg. plus or minus 0.3 comes into view. On the center instrument panel, on the lower ECAM display unit: the pointer of the RUD indicator and the index that show the trim value move to the center mark.

Subtask 27-22-00-730-050-B ** ON A/C NOT FOR ALL

A. System Test of the Rudder Trim

ACTION	RESULT
1.On the center pedestal, on the panel 110VU:
turn the RUD TRIM selector switch in the NOSE/R position and hold it in this position.	The rudder moves to the right. The protractor shows a value higher than 25 deg. On the panel 110VU, on the RUD TRIM position indicator: the numbers change until the value R 25 deg. plus or minus 1 comes into view. On the center instrument panel, on the lower ECAM display unit: the pointer of the RUD indicator and the index that show the trim value move to the right. NOTE: In some cases, the pointer of the RUD indicator is not in line with the trim index.
2.Release the RUD TRIM selector switch.	There is no change.
3.Turn the RUD TRIM selector switch in the NOSE/L position and hold it in this position.	The rudder moves to the left. The protractor shows a value higher than 25 deg. On the panel 110VU, on the RUD TRIM position indicator: the numbers change until the value L 25 deg. plus or minus 1 comes into view. On the center instrument panel, on the lower ECAM display unit: the pointer of the RUD indicator and the index that show the trim value move to the left. NOTE: In some cases, the pointer of the RUD indicator is not in line with the trim index.
4.Turn the RUD TRIM selector switch to the NOSE/R position until the rudder moves to the zero position.	The rudder moves to the zero position. The protractor shows the value 0 plus or minus 0.3 deg. On the panel 110VU, on the RUD TRIM position indicator: the numbers change until the value L or R 0 deg. plus or minus 0.3 comes into view. On the center instrument panel, on the lower ECAM display unit: the pointer of the RUD indicator and the index that show the trim value move to the center mark.

5. Close-up
Subtask 27-22-00-860-055-A

A. Put the aircraft back to its initial configuration.
(1) Remove the 98A27308005000 PROTRACTOR-CONTROL SURFACE DEFLECTION, or TR60-1 RIGMASTER SYSTEM-FLIGHT CONTROLS, or TR31-101 PROTRACTOR - CONTROL SURFACE.
(2) Make sure that the work area is clean and clear of tools and other items.
(3) Remove the access platform(s).
(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).

[Rev.10 from 2021] 2026.03.31 23:48:56 UTC