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Comprehensive depot-level maintenance and repair

At SEI, we ensure your systems are always performing at their best. Our depot-level maintenance and repair services include component-level troubleshooting, system refurbishments, and upgrades. With our state-of-the-art facilities and expert team, we restore your systems to meet original performance specifications while minimizing downtime and maximizing operational efficiency.

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Depot-level support: Expert maintenance, repair, and upgrades

Ensure peak performance with SEI’s depot-level services

From hardware upgrades to thorough refurbishments, our comprehensive depot-level support guarantees that your systems maintain their reliability and functionality throughout their lifecycle.

SEI performs complete depot-level maintenance and repair on all of its products, including retrofit of system upgrades. By servicing our own products, you are guaranteed that the repaired units meet all original performance specifications.  

Hardware and firmware upgrades can be accomplished during repair to minimize downtime, and ensure your units are continually at the latest configuration. 

Our central location in the continental US, near Chicago's O'Hare International Airport, allows expedited transport of critical system components.

Key benefits

  • Component Level Troubleshooting and Repair
  • Refurbishment of In-Service Units
  • Upgrades and Enhancement to Existing Products
  • Servicing Agreements and Contracts Available
  • Rotatable Pool and Loaner Programs Available
Our services
Field Support Services

Expert technicians deployed worldwide to install, calibrate, troubleshoot, and train—ensuring systems run smoothly, wherever you are.

• Factory-trained team
• Rapid global response
• Flexible contract terms

Engineering analysis and support

From systems integration to flight data and structural loads, our engineers collaborate closely to drive your project forward.

• Systems integration
• Flight data expertise
• Structural loads analysis

Homeland Security; Research, Development and Education Services

Trusted expertise in research, analysis, and consulting for homeland security challenges—delivered in flexible formats.

• Problem-solving strategies
• Structural condition assessment
• Sensor-based monitoring

Compliance and governance
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Commitment to quality, safety, and sustainability

At SEI, quality and sustainability are at the core of everything we do. We ensure that all products meet industry regulations, safety standards, and environmental responsibilities, empowering you to make informed, responsible decisions.

Access SEI’s Complete Technical Library
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Browse the technical library

Dive into SEI's comprehensive collection of product brochures, technical documentation, and application notes designed to support your engineering needs. 

Whether you're seeking detailed product specifications or real-world application insights, our library is a key resource to help you optimize the use of SEI’s systems.

 

Stay updated with the latest from across the CMTG group! Here’s where you can find the latest news and upcoming events that impact our operations and collaborations.

Read the latest news and events
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Verticon Dallas 2025
11 March 2025 - 13 March 2025
Kay Bailey Hutchison Convention Centre, Dallas, Texas
Optimising rotorcraft performance with Helitune at Verticon!