Boeing 737-600 - Subtask 53-53-00-860-005; Subtask 53-53-00-480-001; Subtask 53-53-00-040-001

(Continued)
Number Name/Location
343AB Horizontal Stabilizer, Gap Cover - H. Stab. to Body
343AT Horizontal Stabilizer, Gap Cover - H. Stab. to Body
343AZ Horizontal Stabilizer, Access Panel - Inbd T.E. Closure Rib
343BB Horizontal Stabilizer, Access Panel - T.E. Area
F. Prepare to Remove the Tailcone
SUBTASK 53-53-00-860-005
(1) Use a non-permanent marker to make alignment marks on the tailcone and fuselage.
SUBTASK 53-53-00-480-001
(2) Move the stabilizer and elevator to a position that will let the elevator control pushrods be
disconnected (Elevator - Removal, TASK 27-31-11-000-801).
SUBTASK 53-53-00-040-001
WARNING
MAKE SURE THAT ALL PERSONNEL, AND EQUIPMENT ARE AWAY FROM
THE HORIZONTAL STABILIZER. THE MOVEMENT OF THE HORIZONTAL
STABILIZER DURING MAINTENANCE CAN CAUSE INJURY TO PERSONNEL,
AND DAMAGE TO EQUIPMENT.
(3) Make sure that the horizontal stabilizer will not move (Horizontal Stabilizer - Removal,
TASK 27-41-11-000-801):
(a) Do this task: (Remove Pressure from the Elevator Hydraulic Systems A and B,
TASK 27-31-00-800-802).
(b) Set the stabilizer trim cutout switches to the CUTOUT position.
NOTE: The stabilizer trim cutout switches are on the control stand.
(c) Open these circuit breakers and install safety tags:
CAPT Electrical System Panel, P18-1
Row Col Number Name
C 2 C00849 AFCS STABILIZER TRIM
CAPT Electrical System Panel, P18-2
Row Col Number Name
C 8 C00544 FLIGHT RECORDER POSITION SENSOR
F/O Electrical System Panel, P6-2
Row Col Number Name
B 10 C00207 FLIGHT CONTROL STAB TRIM CONT
D 10 C00840 FLIGHT CONTROL STAB TRIM ACTUATOR
Power Distribution Panel Number 1, P91
Row Col Number Name
C 5 C00389 ACCESS COMPT LT
(d) Install the lock, SPL-1672, on the stabilizer trim wheel at the control stand:
1) Turn the trim wheel to put the handle at the top of the wheel.
2) Adjust the height of the trim lock to put the trim wheel handle correctly on the yoke.
3) Install the pin through the yoke.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
53-53-00
Page 402
D633A101-ILF Jun 15/2019
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
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