D. Install Static Discharger
 (1) Install the static discharger (3) (Ref. TASK 23-61-41-400-001).
 5. Close-up
________ Subtask 55-14-11-410-050
 A. Visual Inspection
 (1) Make sure that the work area is clean and clear of tool(s) and other items.
 Subtask 55-14-11-942-050
 B. Remove Ground Equipment
 (1) Remove the access platform(s).
 (2) Remove the warning notice(s). Subtask 55-14-11-081-050
 C. Remove Locking Devices
 (1) Remove the PIN-SIDE STICK LOCKING from the CAPT and F/O side stick controllers.
 Subtask 55-14-11-865-051
 D. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 19CE1, 19CE2, 19CE3.

 TRIMMABLE HORIZONTAL STABILIZER APRON - DESCRIPTION AND OPERATION
_________________________________________________________________
 1.
 General

_______ The Trimmable Horizontal Stabilizer (THS) aprons make an aerodynamic seal between the horizontal stabilizer and the fuselage. On each side of the horizontal stabilizer there is an upper and a lower apron. They are identified 333AT and 333AB (left-hand), 343AT and 343AB (right-hand).

 2.
 Component Location.

___________________
 (Ref. Fig. 001)

 3.
 Description.

____________ The aprons are of sandwich construction. The sandwich has surfaces made of Carbon Fiber Reinforced Plastic (CFRP) and Nomex honeycomb cores. A clamping profile and countersunk screws attach the aprons to the horizontal stabilizer. The forward edges of the aprons follow a guide profile which is riveted to the fuselage skin. A silicone sealing strip seals the gap between the fuselage skin and the aprons.

 Trimmable Horizontal Stabilizer Apron
 Figure 001
 1EFF :  ALL  1  55-15-00 Page 2 
1  1  Feb 01/98
 1  1
 1CES  1

 APRON - TRIMMABLE HORIZONTAL STABILIZER - REMOVAL/INSTALLATION
______________________________________________________________
 TASK 55-15-11-000-001
 Removal of the Apron 333AT/333AB/343AT/343AB
 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.
 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific access platform
 No specific circuit breaker(s) safety clip(s)
 No specific nonmetallic wedge
 No specific warning notices

 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
R 29-00-00-864-001 Put the Related Hydraulic System in the Depressurized
R Configuration before Maintenance Action 55-15-11-991-001 Fig. 401 55-15-11-991-002 Fig. 402

 3.
 Job Set-up

__________

 4.
 Procedure

 Subtask 55-15-11-865-050 
R R A. Open, safety and tag this(these) circuit breaker(s): 
-------------------------------------------------------------------------------
PANEL  DESIGNATION  IDENT. LOCATION
 -------------------------------------------------------------------------------
R R R R  49VU FLIGHT CONTROLS/ELAC1/NORM/SPLY 49VU FLIGHT CONTROLS/THS/ACTR/MOT2 49VU FLIGHT CONTROLS/SEC1/NORM/SPLY 49VU AUTO FLT/FAC1/28VDC 49VU AUTO FLT/FAC1/26VAC 105VU FLIGHT CONTROLS/ELAC2/STBY SPLY 105VU FLT CTL/ELAC1/STBY SPLY 105VU FLT CTL/SEC1/STBY SPLY 121VU AUTO FLT/RUDDER/TRIM/IND 121VU AUTO FLT/FAC2/28VDC 121VU AUTO FLT/FAC2/26VAC 121VU FLIGHT CONTROLS/SEC3/SPLY 121VU FLIGHT CONTROLS/SEC2/SPLY 121VU FLIGHT CONTROLS/THS ACTR/MOT3 121VU FLIGHT CONTROLS/THS ACTR/MOT1 121VU FLIGHT CONTROLS/ELAC2/NORM/SPLY  15CE1 19CE2 21CE1 5CC1 14CC1 16CE2 16CE1 22CE 15CC 5CC2 14CC2 21CE3 21CE2 19CE3 19CE1 15CE2  B11B09B08B04B03 A02 A01 B01 M20M19M18Q19Q18Q17Q16R20
 Subtask 55-15-11-010-050 
R R  B. Get Access 
R R R  (1) Make sure that the hydraulic systems are depressurized and put them in the maintenance configuration. (Ref. TASK 29-00-00-864-001)
　
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