Thrush — "Where We Do Everything Thrush"

• 100 hour and annual inspections
• Turbine and piston engine maintenance, including PT6 Hot Section Inspections
• Airframe repairs: fuselage, landing gear, control surfaces, wings, empennage
• Installation of factory wing spar caps and the Century 60,000 hour wing spar caps
• Complete aircraft accident repair
• Air conditioning installation
• GPS installation
• MVP50T Glass Panel Installation

Fuselage repairs are performed in our Thrush fuselage jig; wing repairs use our dedicated wing fixtures; landing gear repairs use our landing gear fixtures. Empennage recovering (horizontal stabilizer, vertical stabilizer, rudder, elevators) uses the Poly-Fiber process.

• Wing extensions
• Fuel tank size increase
• Wing root fairings
• Aileron servos
• Winglets
• Vortex generators
• Wing angle of incidence optimization
• Cold air intake (600 Thrush) — STC No. SA6033NM
• Serv Aero turtle deck installations
• Cascade PT6A-41/42 (850 SHP) conversion for Thrush and Air Tractor
• Cascade Ram Air Pressure Cowls for Thrush and Air Tractor
• High Performance Propellers

• Reduces or eliminates tail buffet in tight turns
• Increases airspeed 3–5 MPH
• Improves spray pattern
• Reduces corrosion through improved sealing
• Uses less fuel due to decreased drag
• Improves the look of your aircraft

• Recovers horsepower otherwise lost to heated intake air
• Lowers fuel consumption through increased combustion efficiency
• Produces a smoother, cooler-running engine
• May increase cylinder and engine life

Century Spar Cap Kit — 60,000 hour life limit, STC'd and PMA'd. Includes much stronger lower spar caps, much stronger lower splice blocks, splice block attaching hardware, installation drawings, and instructions.

We also offer factory NEW lower spar caps giving 5,400–6,200 hours at a reasonable price. We sell and install all spar cap options, and we carry rebuilt wings in stock, with trade-ins accepted.

We also sell and install reinforced Thrush Leading Edge Wing Skins — significantly tougher than stock, and a great solution if you're experiencing bird strikes that dent and create aerodynamic problems on the standard .050" thickness skin (reinforced version adds .050" in the shaded/leading edge area).

The JAS Ultra Thrush is typically a radial-engined or smaller turbine Thrush converted to the P&W PT6A-41/42 (850 SHP) using the Cascade conversion kit, paired with an AVIA High Performance 3-blade propeller or a Hartzell High Performance 4-blade propeller. The aircraft is completely rebuilt and updated, including:

• Updated, fully inspected, line-oiled fuselage with factory beef-up kits
• Extended wings, 192 or 230 gallon fuel
• Very low time or new spar caps
• Vortex generators, wing root fairings, aileron servos
• Rebuilt 500 gallon hopper, complete spray system, adjustable fan, stainless steel booms, CP nozzles, left side load
• Air conditioning; Nav/Strobe/Instrument/Landing lights
• New upper center instrument panel with MVP50T Glass Panel and new solid state charging circuit (no carbon pile system)
• New throttle quadrant; newly recovered tail surfaces (Poly Fiber) or factory metal tail
• Rebuilt 29" wheels/brakes with new APS black steel brake discs and linings
• Spring steel tail wheel gear with 5.00 x 5 tire; rebuilt shock struts with new biscuits
• Split side panels with stainless Phillips head fasteners; double latch cockpit doors
• New or excellent glass; new Alumigrip HS 4200 paint with custom schemes standard

Why choose the Cascade 850 SHP PT6A-41/42 conversion? 14" longer engine mount with improved thrust line (no ballast needed with metal tail); maximum efficiency ram air inlet with K&N lifetime filters; modern solid state charging circuit; new upper center instrument panel with MVP50T Glass Panel and new wiring harness with cannon plug hookup; 3-blade High Performance Avia 108" prop standard (4-blade Hartzell 108" optional); high performance LED nose landing lights in all new engine cowling. Support comes from JAS in Tulare, CA, and Cascade Aircraft Conversions in Garfield, WA, with PT6 engine support available worldwide.