THRUSH AICRAFT INC - T660 TURBO THRUSH
AIRCRAFT MAINTENANCE MANUAL
MOORING
Park aircraft as previously outlined. In winds up to 20 knots, secure the aircraft at the wing tie down
rings. For winds above 20 knots, tie the tail and main gear as well as the wings. Install external
control surface locks. Be sure to tie the propeller down to prevent it from windmilling with zero oil
pressure. The aircraft should be placed in a hangar when wind velocity is predicted to exceed 50
knots. When mooring aircraft, use 3/4-inch manila or nylon rope. A clove hitch or other anti-slip knot
should be employed. If a manila rope is used for tie down, allow enough slack to compensate for
contraction of the rope fiber without damaging the aircraft.
JACKI NG
Jack points are provided on each main spar and located at wing stations 191 & 265.23. When using
the jack points to lift the aircraft, all hopper loads should be removed. (Fig. 2-1) A jack point is also
provided on the tail wheel trunnion attach fitting on the lower left longeron.
LEVELING
The aircraft may be leveled by raising the tail to an approximate level flight position and by
supporting the tail on a stable jack or platform. Adjust the height of the tail wheel until the left-hand
lower longeron located under the cockpit is level.
COLD WEATHER OPERATION
Aircraft operation in cold weather creates a need for additional maintenance practices and operating
procedures that are not required in moderate temperatures. Whenever possible, shelter the aircraft in
a heated hangar to prevent frost, ice, or snow accumulation that requires added maintenance time
to remove. These weather elements, if allowed to accumulate only a fraction of an inch in thickness
on the critical airfoils and control surfaces, seriously degrade aircraft lift and flight control
effectiveness. The possibility of aircraft system failures is increased when the aircraft is parked
where wind driven snow or freezing rain can be forced into various openings of the aircraft. If the
aircraft is to be moored outside in extreme cold, the battery should be kept fully charged to prevent
freezing. Make certain that all vents, air inlets, and so forth are covered.
Locating the aircraft inside a heated hanger is the most effective method of preheating the aircraft.
The use of an external power unit is recommended to conserve the battery.
2 - 4
Effective: 12/17/03
Summary of Contents for S2R-T660
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