Full Services, for Every Moving Part

Our highly specialized staff of technicians is fully equipped with the latest tools, technologies and facilities, and we provide an unmatched level of service for every component of the helicopters we work on.

Rotor Blades and Rotor Heads

Averaging 2,400 flight hours per year on our own Chinook rotor blades, Columbia has the experience and equipment to provide a level of service most other maintenance providers can’t. Our full service rotor blade shop is capable of repairing and overhauling both metal and composite rotor blades for a variety of aircraft. Thanks to the use of an Avion balancer, our customers typically get rotor blades back with minimum or no flight tracking adjustments required.

Our rotor head shop is able to provide full repair and overhaul capabilities for:

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


We’ve been maintaining our own 234 and 107-II transmissions since we bought our first tandem-rotor helicopter in 1969, and we put that experience to use by offering repair or overhaul services for Forward Transmissions, Aft Transmissions, Mixboxes, Lube Pumps, Engine Transmissions, Combining Transmissions, and Bearing Liner Replacement.


Our years of experience in building and maintaining hydraulic parts have helped us to produce the safest and most reliable hydraulics available.

We specialize in all of the following:

  • Landing Gear, Wheels & Brake Assemblies
  • Power Control Units
  • Pumps & Motors
  • Accumulators
  • Rotor Brakes
  • Reservoirs
  • Manifolds
  • Actuators
  • Dampers
  • Valves
  • Filters


With over 25 years of in-house balancing experience, we offer reliable vibration analysis. Our state-of-the art balancing machines are all digital with the latest software available running computer-aided balancing, data acquisition and documentation. Our high-speed balance machine can test at greater than 8,000 RPM, providing fast, accurate and economical balancing.

Balancing services include:

  • Drive Shafts
  • Sync Shafts
  • Cross Shafts
  • Engine Compressors
  • Turbine Wheels
  • Cooling Fans
  • Transmission Internal Rotating Parts

Please Click Here to Download Our Component Services Data Sheet

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We provide an unmatched level of service for every component

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