Flight Controls; General Description; Maintenance Of Flight Controls - Thrush Aircraft S2R–T660 Maintenance Manual

FLIGHT CONTROLS

SECTION SEVEN
The aircraft is equipped with flight control surfaces consisting of ailerons, elevators, rudder, wing flaps,
elevator tabs, rudder trim tabs and aileron trim tabs. The ailerons and flaps are an all-metal construction.
The empennage is of an all-metal construction consisting of horizontal stabilizer, vertical stabilizer, rudder
and elevators. Control of the ailerons, elevators and rudder are provided through a control stick and rudder
pedals. A switch located on the back of the throttle quadrant controls the electrically actuated flaps. A lever
located on the left side of the cockpit manually controls the elevator trim tabs. Fixed, ground adjustable trim
tabs are located on the rudder and both ailerons.
mechanically interconnected to the push tubes, push rods, bellcranks, cables and torque tube which actuate
the primary flight controls. Control cable pulley brackets are provided with guards to prevent the cable from
jumping the pulley groove. The all-metal, electrically actuated wing flaps provide additional lift for shorter
takeoff distances and slower landing speeds. Wing flaps may be positioned at any setting between up and
down by intermittent operation of the flap switch.
Special care must be exercised when performing control system maintenance. Emphasis shall be given to
security of attachments, correct alignment of rod ends, use of correct hardware, and proper safetying of
materials. Control cables must be free of kinks and pulleys must be aligned with the cables. Position cable
pulleys and route cables to avoid contact with the aircraft structure. Inspect work areas for mislaid tools or
parts with could foul the controls, and perform a functional check of the controls prior to replacement of
access covers. It is recommended that a test flight be accomplished before the aircraft is released for
routine operation when a control system component has been replaced or aircraft rigging has been altered.
Re-rigging the control systems will seldom be necessary if correct maintenance technique is employed
when system components are removed and replaced. Do not disturb position of rod end fittings when
control system components are removed, unless absolutely necessary. When deemed necessary, record
the amount of change required. This to return the fittings to original their original position when the
maintenance or repair action is complete. When control system components are being removed, carefully
note location and position of attaching parts and hardware and return to original location or position when
installing new components and parts. Rigging instructions are provided in succeeding paragraphs for the
empennage and each flight control system. Read these instructions carefully before starting the rigging
operation. Select and accomplish only those rigging steps applicable to the job
Effective: 12/17/04
THRUSH AIRCRAFT INC - T660 TURBO THRUSH
AIRCRAFT MAINTENANCE MANUAL

GENERAL DESCRIPTION

MAINTENANCE OF FLIGHT CONTROLS

The control stick and rudder-brake pedals are
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