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SVT Aviation Maintenance is an aircraft maintenance facility specializing in maintenance and repair of Robinson Helicopters, Bell 206 Series or 407 Series Helicopters, MD500 Helicopters, and general aviation airplanes based in Seguin, Texas.


SVT Aviation Maintenance has been in business since June 2013 and is privately owned and operated. Owner, Michael Underwood, and his team of skilled aviation maintenance experts are dedicated to providing their customers with the best quality and personalized service while staying competitive and keeping safety as their number one priority.

SVT Aviation Maintenance is also a distributor of Jet A fuel, 100LL Avgas fuel, Helicopter Easy Wheels, Robinson certified parts, as well as general aviation parts.

Contact us to find out more or schedule repair or maintenance for your aircraft today.

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Michael Underwood  (pictured center)
Owner/ Operator

  • Airframe and Powerplant License

  • Inspection Authorization

  • (2X) Robinson R22, R44, R66 Factory Maintenance Certified

  • Rolls-Royce M250-C300/A1 (RR300) Engine Maintenance Certified

  • CAE Advanced Electrical Troubleshooting Training Course

  • CAE Avionics Troubleshooting Training Course

  • 2018 HAI Heli Expo Helicopter Maintenance Management Training

  • MD500D, MD500E, and MD520N Factory Maintenance Certified

Mike started his career with Silver State Helicopters in 2006.  After the company shut down in 2008 he went to work on turboprop airplanes for a number of years serving in different types of leadership roles, ending with a position in maintenance control for a freight airline.  He used the knowledge and skills he acquired in these various roles to start SVT Aviation Maintenance and build it into what it is today.

Casey Rivera  (pictured right)
Chief Test Pilot/ Mechanic

  • Airframe and Powerplant License

  • Commercial Helicopter Pilot

  • Robinson R22, R44, R66 Factory Maintenance certified

  • RHC R22 Safety Course

  • Advanced Helicopter Training Maneuvers with Simon Jones at Advanced Flight

Casey has been with SVT Aviation Maintenance for over 2 years, and an aviation professional for 6 years. He served in the United States Navy as a helicopter mechanic. After honorably discharging, he became a commercial helicopter pilot and A&P technician.  His diverse set of qualifications make him perfect for his role.

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