THRUSH AIRCRAFT, INC – MODEL S2R-G10
AIRCRAFT MAINTENANCE MANUAL
2-12
IF THE RED FUEL BYPASS
INDICATOR BUTTON HAS
POPPED OUT, INVESTIGATE
AND REMOVE THE CAUSE
OF THE FUEL OBSTRUCTION
BEFORE FURTHER FLIGHT.
REMOVE, INSPECT, CLEAN
OR REPLACE AND MICRON
FILTER ELEMENT. YOU MAY
THEN RESET THE RED
BYPASS BUTTON BY
PRESSING IT IN WITH
FINGER PRESSURE.
DEFUELING
During the defueling operation, jet fuel
fumes are present; therefore, extreme
caution must be exercised to prevent fire
hazards. To defuel the aircraft, use the
following procedure.
SMOKING ON OR AROUND
THE AIRCRAFT IS NOT
PERMITTED AT ANY TIME.
AIRCRAFT AND EQUIPMENT
GROUNDING PROCEDURES
MUST BE STRICTLY
ADHERED TO. FIRE
EXTINGUISHING EQUIPMENT
MUST BE IMMEDIATELY
AVAILABLE.
a. Ground aircraft to a proper ground
point and all defueling equipment or
containers to the aircraft.
b. Place a vented container of adequate
capacity under each of the three drain
points (header tank and two aft
inboard wings). Verify that the
containers are properly grounded to
the aircraft.
c. Open the drain valves and allow all
fuel to drain. When tanks are empty,
close the drain valves and move the
fuel containers a safe distance from
the aircraft.
WARNING
d. Verify that all the drain valves are
closed.
LANDING GEAR, WHEELS &
BRAKES
Reference Section 6
Check all gear assemblies for general
cleanliness, security of mounting, and
hydraulic leaks at prescribed inspection
intervals. Lubricate all lubrication points on
main and tail gear assemblies at
prescribed intervals.
TIRES
Tires should be inspected for proper
inflation, breaks, cuts, and foreign objects
in tread, flat spots and exposed cord.
Replace tire if there is any question of its
reliability. Proper inflation is necessary for
maximum tire life. Maintain 29x11-10 ply
rated main tire and tube pressure at a
minimum of 40 psi to a maximum of 62 psi,
depending on the load and runway
conditions. The 12.5 x 4.5-10 ply rated tail
wheel tire and tube pressure should be 55
psi maximum. The wheels and tires are
balanced assemblies. If tires are
suspected of being out of balance, they
may be balanced on automotive type
balancing equipment. If aircraft is out of
service, move the aircraft to rotate tires
every seven days to prevent flat spots from
developing.
WARNING
MLG SHOCK STRUTS
Main landing gear shock struts are to be
inspected at the specified intervals. At
least annually they must be removed from
the aircraft, disassembled, cleaned and
inspected. Shock “biscuits” should be
replaced every 1000 hours or if they
develop cracks. Reinstall shock struts with
new hardware
Page Effective 03/26/2010
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