Repair stations
5,066 maintenance shops hold an FAA repair station certificate (Part 145), which lets them inspect, repair and overhaul aircraft, engines and parts: 4,003 in the United States and 1,063 abroad, certificated so that U.S.-registered aircraft can be worked on there. Click a name for the certificate and the shop's other locations.
| Repair station | Certificate | Town | State | Country | Listed |
|---|---|---|---|---|---|
| A-Tec Aircraft Maintenance Center | 9F1R995C | Hamilton | Montana | United States | 10/5/2026 |
| Aero Inspection & Repair INC | HSYR817E | Billings | Montana | United States | 10/5/2026 |
| Aerotronics INC doing business as DBA Aerotronics of Missoula | NH2D031L | Missoula | Montana | United States | 10/5/2026 |
| Aerotronics INC | NH2R031L | Billings | Montana | United States | 10/5/2026 |
| Arlins Aircraft Service INC | QM5R150N | Belgrade | Montana | United States | 10/5/2026 |
| Avmax Montana, INC doing business as DBA Avmax | V0XR413Y | Great Falls | Montana | United States | 10/5/2026 |
| Billings Flying Service INC | 8BIR918C | Billings | Montana | United States | 10/5/2026 |
| Bridger Aviation Repair LLC doing business as DBA Bridger Aerospace | 8G9R705D | Belgrade | Montana | United States | 10/5/2026 |
| Butte Aviation INC | H5LR849J | Butte | Montana | United States | 10/5/2026 |
| Choice Aviation LLC | VPER116U | Hamilton | Montana | United States | 10/5/2026 |
| Holman Aviation CO | HOQR040K | Great Falls | Montana | United States | 10/5/2026 |
| Leading Edge Montana, LLC | EFUR514D | Helena | Montana | United States | 10/5/2026 |
| Lynch Flying Service INC doing business as DBA Edwards Jet Center | HSRR811E | Billings | Montana | United States | 10/5/2026 |
| Matthew Avionics Testing and Technical Support LLC doing business as DBA Matts Avionics | 5M9R511C | Stevensville | Montana | United States | 10/5/2026 |
| Minuteman Aviation, INC | MINR449G | Missoula | Montana | United States | 10/5/2026 |
| Mountain Wave Aviation LLC doing business as DBA Mountain Wave Avionics | MWNR701E | Three Forks | Montana | United States | 10/5/2026 |
| Neptune Aviation Services INC | NI6R011N | Missoula | Montana | United States | 10/5/2026 |
| Red Eagle Aviation INC | EAGR804E | Kalispell | Montana | United States | 10/5/2026 |
| Rocky Mountain Avionics, LLC doing business as DBA Rocky Mountain Aircraft Aircraft Services | 7RKR476D | Kalispell | Montana | United States | 10/5/2026 |
| Ruby Valley Aviation LLC | Y5VR482Y | Twin Bridges | Montana | United States | 10/5/2026 |
| Signature Flight Support Corporation doing business as DBA Signature Technicair | 5SGR851B | Belgrade | Montana | United States | 10/5/2026 |
| Stene Aviation INC | DMHR240D | Polson | Montana | United States | 10/5/2026 |
| Summit Aviation INC doing business as DBA Transmedics Aviation | SMMR308E | Belgrade | Montana | United States | 10/5/2026 |
| Tamarack Helicopters INC | TZ0R524Y | Stevensville | Montana | United States | 10/5/2026 |
| Tt Heli, LLC. | 8RMR145C | Belgrade | Montana | United States | 10/5/2026 |
| Whispering Turbines INC | WUUR350L | Hamilton | Montana | United States | 10/5/2026 |
Source: the FAA's repair station list (Part 145 certificate holders), October 9, 2026. The fourth character of a certificate number says where the shop is: R in the United States, Y abroad, D abroad under an agreement with the local authority. Contact people, telephone numbers and email addresses in the FAA's list are not shown, the site's policy at this time.