THRUSH AICRAFT INC - T660 TURBO THRUSH
AIRCRAFT MAINTENANCE MANUAL
AIRFRAME MAINTENANCE
CORROSION CONTROL
The lower part of the aircraft is painted with ultra gloss polyurethane. The forward upper glareshield
part is painted with flat black polyurethane. The fuselage frame is painted with a primer, and then
painted with a gray ultrathane.
All repairs involving refinishing should be painted to the original specifications. The following
procedures should be carried out step by step.
A.
Sand part to bare metal using 180 paper or finer. Avoid removal of cladding with the Alclad
parts, whenever possible.
B.
Thoroughly clean area with isopropyl alcohol, a solvent, or thinner. Allow time to dry.
C.
Apply one thin spray coat of Epoxy primer with Epoxy hardener. Allow time to dry.
D.
Mix the required quantity of Polyurethane (use the directions on the can) with the prescribed
amount of activator. Spray a smooth and even coat directly onto the primed surfaces. Apply
at least two coats and allow time for drying between the coats.
A regular and thorough cleaning of both the interior and exterior of the aircraft is a major part of
corrosion control. All areas of the aircraft are accessible for cleaning by removal of the panels. The
cleaning procedure that follows is recommended for general purposes.
* NOTE *
Certain chemicals cannot be removed effectively by detergent
solutions. Special cleaning agents are available for that purpose. It is
suggested that the chemical suppliers be contacted for cleaning agents
that are suitable for those special needs.
A.
Wash all exterior surfaces of the aircraft with plain water and any commercial soap or
detergent. Soap and detergent are organic chemicals, and it is important that all traces be
removed by flushing with plain water.
B.
Detach all removable panels from the aircraft. Wash down the rear fuselage aft of the
wing trailing edge. Tube joints, skin bends, and so forth should receive particular
attention. Remove excess moisture after flushing.
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Effective: 12/17/03
Summary of Contents for S2R-T660
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