Aileron System; Flap System - Thrush Aircraft S2R-R1340 Maintenance Manual

THRUSH AIRCRAFT, INC – MODEL S2R-R1340
P. Reattach the wing attach angles to
the wing spar and fuselage and
torque all nuts and bolts to the
specification called out in Table 7-3.
Q. Remove the ½ inch temporary
spacers between the lower longeron
and the lower spar cap.
Table 7-1: CONTROL SYSTEM TROUBLESHOOTING CHART
PROBLEM
Resistance to control
stick movement.
Incorrect aileron
travel.
Correct aileron travel
cannot be obtained
by adjusting
belcrank stops.
Flaps do not extend
(down) or retract (up).
Flaps fail to retract
(up) completely.
7-26
AIRCRAFT MAINTENANCE MANUAL

AILERON SYSTEM

CAUSE
Control stick bearings
dry or worn.
Torque tube bearings
dry or worn.
Bent aileron.
Aileron push rods and
tubes out of rig.
Aileron bell crank
stops incorrectly
Incorrect rigging of
push rods and tubes.
Incorrect rigging of
belcranks.

FLAP SYSTEM

Circuit breaker out.
Defective flap switch.
Defective flap motor.
Defective electrical
circuit.
Stripped or broken
jackscrew on flap
motor.
Defective micro-switch.
Incorrect rigging of push
rods.
R. Release the wing supports and
check the wing dihedral for 3 ½
degrees.
S. Complete the wing installation by
making the necessary connections in
the electrical, fuel, pitot, and flight
control systems.
REMEDY
Check control stick bearings for
lubrication, excessive wear and
cleanliness.
Check bearing for lubrication,
excessive wear and cleanliness.
Repair or replace aileron.
Rig in accordance with aileron
rigging procedures.
Rig in accordance with aileron
rigging procedures.
Rig in accordance with aileron
rigging procedures.
Rig in accordance with aileron
rigging procedures.
Reset circuit breaker.
Replace flap switch.
Replace flap motor.
Replace defective wires.
Replace jackscrew assembly.
Replace micro-switch.
Rig in accordance with rigging
procedures.
Effective: 01/01/08