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has 2 push rod guides. The first push rod guide attaches to the flap-control rib. The center rib
holds the second push rod guide. The two long control rods connect to the two aileron bellcranks,
one in each wing. Short control rods connect the aileron bellcranks to the aileron horns.
Each aileron bellcrank in the wing has a slot. A bolt with a sleeve goes through the slot. The ends
of the slot hit the sleeve for the aileron gust stops. You cannot adjust the range of the gust stops.
You can adjust the short control rods to move the range up or down.
The aileron mass balance attaches to a lever at the outboard end of the aileron.
The left aileron has a fixed trim tab. The fixed trim tab can only be adjusted on the ground.
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Figure 2: Aileron Controls In The Wing
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3. Operation
If you move the control sticks to the left:
− The control rods connected to the stick move to the right.
− The forward bellcrank moves the control rod below the center console to the rear.
− The control rod below the center console moves the rear bellcrank so that the long control
rods in the wing move to the left.
− The aileron bellcrank in the left wing moves the short control rod attached to the left aileron
horn to the rear.
− The left aileron moves up.
− The control rod in the right wing also moves to the left. It pulls the aileron bellcrank which
moves the control rod attached to the right aileron horn forward.
− The right aileron moves down.
If you move the control sticks to the right:
− The left aileron moves down.
− The right aileron moves up.
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TROUBLE SHOOTING
1. General
The table below lists the defects you could have in the aileron control system. If you have the
trouble detailed in the Trouble column read across to the Possible Cause column. Then do the
repair in the Repair column.
Trouble Possible Cause Repair
Aircraft moves about its
longitudinal axis.
Aileron control rods need
adjusting.
Adjust the aileron control rods.
Aileron controls stiff/catch. Bearings defective. Replace the defective eye
end.
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MAINTENANCE PRACTICES
1. General
These maintenance practices tell you how to do test procedures on the aileron control system. And
they tell you how to adjust the aileron control system. Refer to paragraphs 4 and 5 for removal,
installation and access data on the control rods and bellcranks. Refer to Chapter 57-60 to
remove/install the ailerons.
WARNING: WHEN YOU DO WORK ON THE AIRPLANE CONTROLS. YOU MUST
MAKE SURE THE AREA AROUND THE CONTROLS/CONTROL
SURFACES ARE CLEAR OF PERSONNEL/EQUIPMENT. IF YOU DO
NOT DO THIS, INJURY TO PERSONNEL AND DAMAGE TO
CONTROL SURFACES CAN OCCUR.
WARNING: WHEN YOU COMPLETE WORK ON THE CONTROLS, MAKE SURE
THAT YOU REMOVE ALL LOOSE ITEMS/TOOLS FROM THAT AREA.
LOOSE ITEMS/TOOLS CAN PREVENT FULL MOVEMENT OF THE
AIPLANE CONTROLS. THIS CAN CAUSE DEATH OR INJURY TO
PERSONS.
2. Aileron Control System Test For Correct Range Of Movement
A. Equipment
Items Quantity Part Number
Control Stick Lock. 1 20-1000-01-00
Protractor 1 Commercial.
B. Aileron Control Test Procedure
Detail Steps/Work Items Key Items
(1) Make a copy of the Control Adjustment
Report.
− Use it to record the measurements.
Refer to Chapter 06-00.
(2) Set the flaps to the CRUISE position. Refer to Chapter 27-50.
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Detail Steps/Work Items Key Items
(3) Make sure the control stick is centered.
− Install the control stick lock.
Note: Use a protractor to make all measurements at the aileron control surfaces.
Make the measurement between the top surface of the aileron, and the top
surface of the flap.
(4) Measure the distance between the trailing
edge of each aileron and the trailing edge of
the flap.
− Record these measurements.
The left aileron must align with the right
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