Maintenance

OUR CAPABILITIES
Delivering quality aircraft
maintenance and repair that’s
backed by years of experience.
Aircraft repair is our passion. From routine maintenance to major overhauls and inspections, we are committed to caring for your aircraft as if it were our own. The Neptune team delivers outstanding service so that downtime is minimized, and quality is second to none.
AVIONICS
Outstanding avionic services from installation to repairs.
Experienced technicians, modern test equipment, and more than 138,000 square feet of available hangar space allow the Neptune Avionics Team to handle any job – large or small. We offer a full range of avionics installation, maintenance and troubleshooting services.
MACHINE SHOP
Engineered focused precision and rapid response reliability.
When it absolutely needs to be done right the first time, call Neptune. Our full – service machine shop can make or repair parts that you can’t find off–the–shelf. We provide boring, drilling, milling, tapping, turning and reaming services using both CNC and conventional methods. We offer:
- Prototype Development
- Short Run Production
- Welding, Fabrication, Machining
- Custom Work & One–Off Items
NON-DESTRUCTIVE TESTING
Fast, Versatile, and Robust NDT Services.
From basic magnetic particle inspections to sophisticated Phased Array or Thermography examinations, Neptune NDT offers a full suite of services to meet your needs. We provide efficient, safe, compliant, and economical NDT services. We offer:
- Fast Turn Times
- Local Pick–up & Delivery
- Mobile Inspection Service
- A full–service Machine Shop Onsite
We’re proud that our
work helps strengthen
aviation services
in Montana and beyond.
At Neptune Aviation, our service team shares a passion for excellence. From routine maintenance to major overhauls and inspections, we are committed to caring for your aircraft as if it were our own.

Other Services


