Visual Inspection of the Pitch-Trim Control Wheel Indicators

TASK 27-41-00-210-002-A
Visual Inspection of the Pitch-Trim Control Wheel Indicators

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 GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING GEAR. THIS WILL PREVENT UNWANTED MOVEMENT OF THE LANDING GEAR, AND THUS POSSIBLE INJURY TO PERSONS AND DAMAGE TO THE AIRCRAFT AND/OR EQUIPMENT.

ZONE: 210

1. Reason for the Job
Do a check for cracks on the pitch-trim control wheel indicators.
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 27-41-41-000-001-A	Removal of the Control Mechanism-Pitch Trim
TASK 27-41-41-400-001-A	Installation of the Control Mechanism-Pitch Trim
TASK 29-10-00-864-001-A	Depressurize the Green 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 29-24-00-864-001-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 27-41-00-865-054-A

A. 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
49VU	LIGHTING/STBY/COMP/LIGHT	1LF	H04
** 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
49VU	LIGHTING/STBY/COMP/LIGHT	1LF	H02
** ON A/C ALL
105VU	FLIGHT CONTROLS/ELAC2/STBY SPLY	16CE2	A02
105VU	FLT CTL/ELAC1/STBY SPLY	16CE1	A01
121VU	FLIGHT CONTROLS/SEC3/SPLY	21CE3	Q19
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
122VU	LIGHTING/INSTL LT/GLARE/SHLD	5LF	Y05
122VU	LIGHTING/INSTL LT/MAIN INST/PNL AND/PED	4LF	Y04
122VU	LIGHTING/INSTL LT/OVHD/PNL	3LF	Y03

Subtask 27-41-00-860-066-A

B. Aircraft Maintenance Configuration
(1) On the panel 111VU, turn the INTEG LT/MAIN PNL & PED potentiometer to BRT to make crack detection easier.
(2) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
(3) Pressurize the Yellow and the Green hydraulic systems (Ref. AMM TASK 29-23-00-863-001).
(4) Do the EIS start procedure (upper ECAM DU and lower ECAM DU only)
(5) On the center pedestal on the ECAM control panel, push the F/CTL pushbutton switch (Ref. AMM TASK 31-60-00-860-001).
(6) Make sure that on the lower display unit (DU) of the ECAM, the F/CTL page comes on.

4. Procedure
Subtask 27-41-00-210-056-A

A. Visual Inspection of the Pitch-Trim Control Wheel Indicators for Cracks
(1) On the center pedestal, turn the CAPT or F/O pitch-trim control wheel to the nose DN stop position.
(2) On the CAPT side:

make sure that there are no cracks on the pitch-trim control wheel indicator while you turn the pitch-trim control wheel to the nose UP stop position.

(3) If you find cracks(s), replace the pitch-trim control wheel indicator (Ref. AMM TASK 27-41-41-000-001) (Ref. AMM TASK 27-41-41-400-001).
(4) On the F/O side:

make sure that there are no cracks on the pitch-trim control wheel indicator while you turn the pitch-trim control wheel to the nose DN stop position.

(5) If you find cracks(s), replace the pitch-trim control wheel indicator (Ref. AMM TASK 27-41-41-000-001) (Ref. AMM TASK 27-41-41-400-001).

5. Close-up
Subtask 27-41-00-860-067-A

A. Put the Aircraft Back to its Initial Configuration
(1) Turn the pitch-trim control wheel to the neutral position.
(2) Turn the INT LT/MAIN PNL & PED potentiometer to OFF.
(3) Depressurize the Yellow and Green hydraulic systems (Ref. AMM TASK 29-24-00-864-001) (Ref. AMM TASK 29-10-00-864-001).
(4) Do the EIS stop procedure (Ref. AMM TASK 31-60-00-860-002).
(5) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).

[Rev.10 from 2021] 2026.04.01 06:53:55 UTC