Removal of the Position Transducer from the THS Actuator

TASK 27-44-56-000-001-A
Removal of the Position Transducer from the THS Actuator

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: 310
FIN: 9CE

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 3M (10 FT)- ADJUSTABLE
No specific	AR	CAP - BLANKING
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	AR	WARNING NOTICE(S)
0U190360	1	PIN-RIGGING,THS ACTUATOR,MECHANICAL INPUT LEVER

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
310	FUSLG TAIL SECTION AFT OF AFT PRESS BHD
312AR

C. Referenced Information

REFERENCE	DESIGNATION
TASK 29-00-00-864-001-A	Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action
Position Transducer

3. Job Set-up
Subtask 27-44-56-010-050-A

A. Get Access
(1) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position.
(2) Open the access door 312AR.

Subtask 27-44-56-860-051-A

B. Aircraft Maintenance Configuration

Position Transducer

(1) Turn the pitch-trim control wheel in the cockpit and put the THS actuator (1) near to the zero position.
(2) Put the 0U190360 PIN-RIGGING,THS ACTUATOR,MECHANICAL INPUT LEVER in the mechanical input of the THS actuator (1).
(3) Put the WARNING NOTICE(S) in the cockpit to tell persons not to operate the pitch controls.

Subtask 27-44-56-865-050-A

C. Open, safety and tag this(these) circuit breaker(s):

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
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/ELAC1/NORM/SPLY	15CE1	B06
49VU	FLIGHT CONTROLS/THS/ACTR/MOT2	19CE2	B04
** ON A/C ALL
105VU	FLT CTL/ELAC1/STBY SPLY	16CE1	A01
121VU	FLIGHT CONTROLS/THS ACTR/MOT3	19CE3	Q17
121VU	FLIGHT CONTROLS/THS ACTR/MOT1	19CE1	Q16

Subtask 27-44-56-860-050-A

D. Aircraft Maintenance Configuration
(1) Make sure that the Green and the Yellow hydraulic systems are depressurized and put them in the maintenance configuration (Ref. AMM TASK 29-00-00-864-001).
(2) Put the WARNING NOTICE(S) in position to tell persons not to pressurize the Green and the Yellow hydraulic systems.

4. Procedure
Subtask 27-44-56-020-050-A

A. Removal of the Position Transducer

NOTE: The removal of the Command Position Transducer (COM) and the Monitor Position Transducer (MON) is the same. The removal procedure for one of the position transducers only is given.

(1) Disconnect the electrical connectors (3),(4) from the receptacles (5),(6).
(2) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(3) Hold the position transducer (2) and remove the screws (7) and the washers (8).
(4) Remove the position transducer (2) from the THS actuator (1).

[Rev.10 from 2021] 2026.03.31 23:51:43 UTC