MRO SERVICES

Backed by over 50 years of experience

Columbia Helicopters achieves remarkable flight hours due to our experienced mechanics and extensive maintenance capabilities. Our experience can help you reach your target availability rate.

What Can Columbia Do for You?

Columbia Helicopters supports military and commercial customers around the world. Operators choose Columbia because we understand the difference between knowing how to maintain a helicopter and what is required to keep it operating in peak condition.

Columbia provides total life-cycle support on the CH-47 and CH-46 helicopter platforms. Columbia also supports the Honeywell T55 and the GE T58 and CT58 series of engines with its in-house correlated engine test cells.

We understand what it takes to sustain your helicopter’s readiness rate because we don’t just maintain them – we fly them, too.

For Terms and Conditions relating to CHI maintenance, repair and overhaul services, please click here: MRO Terms & Conditions

AIRCRAFT SUPPORTED

CH-46 | CH-47 | H-3/S-61

Engine Services

Columbia Helicopters is capable of providing engine MRO services to numerous engines and APUs. We are a factory-authorized service center for the Honeywell T55-714 series engine and a GE approved Total Logistics Support Center for the GE T58 and CT 58 . Our facility maintains a Honeywell correlated test cell capable of operating up to 6,000 shaft horsepower. Another test cell provides baseline data for all GE T58 engines.

We also repair and overhaul a range of related accessories:

Fuel Controls, Pumps, Manifolds
Centrifugal Purifiers
Flow Dividers
Lube Pumps
Stator Vane Actuators (SVA)
Anti-Ice Valves
Pilot Valves
T5 Harnesses
Oil Coolers

Over Speed Controls
Accessory Drive Gearboxes
Front Frame Accessory Drives
Power Turbine Accessory Drives
Right Angle Drives
Oil Jets, Combustion Liners
Bypass and Relief Valves
Solenoid and Bleed Valves

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Airframe Services

Columbia Helicopters is uniquely qualified to provide airframe services ranging from minor modifications to major structural repairs, in our facility and with rapid on-site field repair teams.

Complete reset and modernization
Major airframe modifications: structural, avionics and mission equipment
Major airframe repairs: battle damage and normal breakage
Fiberglass and composite repair
Tail section repair
Engine mount replacement
Depot level maintenance
Corrosion inspection and reports
Painting and corrosion protection

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Components

Columbia Helicopters’ technicians are highly skilled and fully equipped with the latest tools, technologies and facilities in component repair and overhaul. Columbia is proud to offer U.S. Army approved (CH-47), NAVAIR approved (CH-46) and OEM qualified (234 and 107) services.

A full lineup of balancing, repair and overhaul capabilities are available on the following:

ROTOR HEADS

Forward and Aft Rotor Heads
Swashplates
Tail Rotor Drive Shafts
Vertical Shafts
Flight Control Assemblies
Synchronization Shafts and Adapter Assemblies

ADDITIONAL

Drive Shaft Assemblies
Engine Compressors
Turbine Wheels
Cooling Fans

TRANSMISSIONS

Forward, Aft, Combining and Engine Transmission
Bearing Liner Replacement
Mix Box
Lube Pump
Full run stand capability for all CH-47 and CH-46E transmissions

Engineering Services

Columbia Helicopters is committed to providing the best in-class design and maintenance engineering services to support the best in-class flight operations. Columbia specializes in the design, manufacturing support, and maintenance support for the Model 107-II (civil variant of the CH-46), Model 234 (civil variant of the CH-47), and CH-47D tandem rotor helicopters.

Columbia understands the complexity and beauty of the design of these aircraft, as well as the functional and industry requirements. Columbia’s Engineering offers unparalleled engineering capabilities and flexibility to meet your rotorcraft’s operational, maintenance, and certification needs. Columbia’s highly-skilled engineering professionals use advanced tools to tackle the most complex projects and turn them into safe, reliable, efficient, and cost-effective solutions. Whether you have a mission specific new product development project or supporting current aircraft operations, Columbia offers engineering services tailored to meet your needs.

SPECIFIC CAPABILITIES

New Product Development and Implementation
Structural and Failure Analysis
Minor and Major Aircraft Repairs
FAA Certification
Complex System Integration
Manufacturing Support Capabilities
Electrical and Avionics Design

Additional Services and Capabilities

Avionics

Dedicated on-site Avionics and Electric shops offer inspection, testing, repair, overhaul, modification and installation of the following types of systems:

Flight Control Systems
Monitoring
Collision Avoidance Systems
Management Systems
Flight Recorders

Radars
Communication Systems
Electrical Accessories
Wire Harnesses

Balancing

Drive, Synch and Cross Shafts
Engine Compressors
Turbine Wheels

Cooling Fans
Transmission Internal Rotating Parts

Rotor Blades

The Rotor Blade shop is capable of repairing and overhauling both metal and composite rotor blades for a variety of aircraft. Services offered include:

Trim tab and honeycomb replacement
Nickel cap and trailing edge wedge repairs
Fairing, leading edge and erosion strip repairs
Painting and sealing
Balancing

Rotor Heads and Drive Shafts

U.S. Army PVA qualified to repair or overhaul CH-47 Chinook helicopter rotor heads, drive shafts and vertical shaft assemblies.

Repair and overhaul:

Forward and Aft Rotor Heads
Swashplates
Tail Rotor Drive Shafts

Vertical Shafts
Flight Control Assemblies
Synchronization Shafts and Adapter Assemblies

Finishing

Columbia’s on-site paint shop is designed to handle helicopters of various sizes, including the CH-47D Chinook helicopters. Whether you need a completely new paint job or a small paint repair, Columbia’s experienced crew can match any paint color and scheme.

Services offered include the following: