(2)
De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002).
TASK 27-34-00-440-001
Reactivation of Elevator Servocontrol Position-Transducer
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.
WARNING : MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS ARE CLEAR.
_______
MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR
DAMAGE.
1. Reason for the Job
__________________
Refer to the MMEL TASK: 27-34-02
Elevator - Elevator Servocontrol Position
Transducer
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------
REFERENCE QTY DESIGNATION
-------------------------------------------------------------------------------
No specific access platform 5.35 m (17 ft. 7 in.)
B. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied
from the External Power 29-10-00-864-003 Depressurize the Blue Hydraulic System 29-23-00-864-001 Depressurize the Green and Yellow Hydraulic Systems
after Operation of the PTU
29-24-00-864-001 Depressurize the Yellow Hydraulic System
R 55-13-11-000-001 Removal of the THS Trailing Edge Access Panels
R 55-13-11-400-001 Installation of the THS Trailing Edge Access Panels
-------------------------------------------------------------------------------
REFERENCE DESIGNATION -------------------------------------------------------------------------------TSM CH27P.B101 (for corrective action)
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
27-34-00-991-004 Fig. 401
**ON A/C 301-399,
27-34-00-991-004-A Fig. 401A
**ON A/C ALL
3. Job Set-up
__________
Subtask 27-34-00-860-070
A. Aircraft Maintenance Configuration
(1)
Energize the aircraft electrical circuits (Ref. 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, release the FLT CTL/ELAC 2, FLT CTL/SEC 2 and FLT CTL/SEC 3 pushbutton switches (on these pushbutton switches, the OFF legends come on).
(4)
Depressurize the aircraft hydraulic systems:
(a) For the left elevator:
-Depressurize the Green and Blue systems (Ref. TASK 29-23-00-864-001) (Ref. TASK 29-10-00-864-003).
(b) For the right elevator:
-Depressurize the Yellow and Blue systems (Ref. TASK 29-24-00-864-001) (Ref. TASK 29-10-00-864-003).
Subtask 27-34-00-010-056
B. Get Access
(1)
Put the access platform in position:
(a)
In the zone 334 for the left elevator.
(b)
In the zone 344 for the right elevator.
(2)
Open the THS trailing edge access panels (Ref. TASK 55-13-11-000-001):
(a)
334DB for the left elevator.
(b)
344DB for the right elevator.
4. Procedure
_________ R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
(Ref. Fig. 401/TASK 27-34-00-991-004)
**ON A/C 301-399,
(Ref. Fig. 401A/TASK 27-34-00-991-004-A)
**ON A/C ALL
Subtask 27-34-00-440-050
A. Reactivation of the Defective Transducer
(1)
If the servocontrol has two transducers:
(a) Swap the connection of the electrical connectors on the transducers.
(2)
If the servocontrol has three transducers:
(a)
Remove the electrical connector (1) of the replacement transducer.
(b)
Remove the blanking cap from the defective transducer and install it on the replacement transducer.
(3)
Connect the electrical connector (1) to the defective transducer.
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