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 & S Helicopters INC | SI2R162L | Cahokia Heights | Illinois | United States | 10/5/2026 |
| Aar Aircraft Services, INC doing business as DBA Aar Aircraft Services Services Rockford | 4A9R752C | Rockford | Illinois | United States | 10/5/2026 |
| Acl Airshop, LLC | 114R717D | Elk Grove Village | Illinois | United States | 10/5/2026 |
| Adi Repairs INC doing business as DBA Adi Repairs | 4ADR733B | Effingham | Illinois | United States | 10/5/2026 |
| Aeromotive Services INC | 451R352D | Dekalb | Illinois | United States | 10/5/2026 |
| Aerotek Design Labs, LLC | 3ADR648Y | Plainfield | Illinois | United States | 10/5/2026 |
| Air Spares Unlimited, LLC | JJJR142E | Chicago | Illinois | United States | 10/5/2026 |
| Aircraft Propeller Service, LLC doing business as DBA Aps | EY2R811K | Lake Zurich | Illinois | United States | 10/5/2026 |
| Alpha-Tech Aviation Services INC | J6ZR311Y | Schiller Park | Illinois | United States | 10/5/2026 |
| Aog Aviation Spares LLC | O45R259Y | Oswego | Illinois | United States | 10/5/2026 |
| Astronics Connectivity Systems & Certification Cor | 3TXR892B | Waukegan | Illinois | United States | 10/5/2026 |
| Avionics Place, INC doing business as DBA Radio Ranch, INC. DBA Avionics Place, INC. | FQ5R866M | Rockford | Illinois | United States | 10/5/2026 |
| Bejna, Robert Laddie doing business as DBA Rlb Accessory Service | KB2R946K | Addison | Illinois | United States | 10/5/2026 |
| Berkley International INC | B3YR387N | Wheeling | Illinois | United States | 10/5/2026 |
| Boeing Distribution INC | LV5R029N | St. Charles | Illinois | United States | 10/5/2026 |
| Bohm'S Aviation LLC | BOMR584E | Pekin | Illinois | United States | 10/5/2026 |
| Boss Aviation LLC | 3BNR646B | Wheeling | Illinois | United States | 10/5/2026 |
| Byerly Aviation INC doing business as DBA Byerly Aviation | 9BYR810B | Peoria | Illinois | United States | 10/5/2026 |
| Carver Aero LLC doing business as DBA Revv Aviation | CGFR811C | Sugar Grove | Illinois | United States | 10/5/2026 |
| Cc Industries INC | OIOR625L | Wheeling | Illinois | United States | 10/5/2026 |
| Cef Industries, LLC | 6CER695B | Addison | Illinois | United States | 10/5/2026 |
| Chemring Energetic Devices INC | I63R814X | Downers Grove | Illinois | United States | 10/5/2026 |
| Chicago Executive Service Center, LLC | UPWR481X | Wheeling | Illinois | United States | 10/5/2026 |
| Chicago Jet Group, LLC | X42R211L | Sugar Grove | Illinois | United States | 10/5/2026 |
| Chronos Aviation, LLC. doing business as DBA Emery Air, INC. | E81R759X | Rockford | Illinois | United States | 10/5/2026 |
| Cmc Electronics Aurora INC doing business as DBA Cmc Electronics Flight Flight Visions | FV7R724J | Sugar Grove | Illinois | United States | 10/5/2026 |
| Crucial Mro, LLC | CZZR575X | Murphysboro | Illinois | United States | 10/5/2026 |
| Csafe LLC doing business as DBA Csafe | 5C56781B | Des Plaines | Illinois | United States | 10/5/2026 |
| D H Helicopter INC doing business as DBA North American Helicopter | DEJR156D | Mascoutah | Illinois | United States | 10/5/2026 |
| Darrell D. Day doing business as DBA Pi-Ball Balloons | PIWR475K | Rock Island | Illinois | United States | 10/5/2026 |
| Deere & Company Aviation Department | JZ2R944K | Milan | Illinois | United States | 10/5/2026 |
| Donaldson Company INC doing business as DBA Western Filter, A A Division of Donaldson Ompany, I | W8FR323N | Dixon | Illinois | United States | 10/5/2026 |
| Dupage Aerospace Corporation | SVTR023S | West Chicago | Illinois | United States | 10/5/2026 |
| Eclipse Aerospace INC | 3BGR313B | Sugar Grove | Illinois | United States | 10/5/2026 |
| Elliott Aviation of the Quad Cities, LLC. doing business as DBA Elliott Aviation | CGHR812C | Milan | Illinois | United States | 10/5/2026 |
| Finefield Aviation INC | FP5R865M | Lake In the Hills | Illinois | United States | 10/5/2026 |
| Flight Check Commercial Aviation Services, LLC | K0JR277Y | Bensenville | Illinois | United States | 10/5/2026 |
| Flight Services | BNZR547C | Murphysboro | Illinois | United States | 10/5/2026 |
| Flight-Tech Repair INC | 3LNR460B | Galena | Illinois | United States | 10/5/2026 |
| Flying High LLC | FHLR856D | Naperville | Illinois | United States | 10/5/2026 |
| Freedom Air LLC doing business as DBA Freedom Aircraft Maintenance | 4FDR481O | Northbrook | Illinois | United States | 10/5/2026 |
| Ge Aviation Systems LLC | KA2R945K | Loves Park | Illinois | United States | 10/5/2026 |
| General Aircraft Maintenance | MFKR583K | Huntley | Illinois | United States | 10/5/2026 |
| Gulfstream Aerospace Services Corporation doing business as DBA Gulfstream Aerospace Services | 8GUR243D | Cahokia Heights | Illinois | United States | 10/5/2026 |
| Hamilton Sundstrand Aerospace doing business as DBA Hamilton Sundstrand Rockford Rockford Repair Station | JW2R941K | Rockford | Illinois | United States | 10/5/2026 |
| Helicopters INC | DDZR151D | Cahokia Heights | Illinois | United States | 10/5/2026 |
| Ingenium Aerospace, LLC | I2SR006B | Rockford | Illinois | United States | 10/5/2026 |
| Intelsat Inflight LLC | 3GOR815N | Itasca | Illinois | United States | 10/5/2026 |
| Intelsat Inflight LLC | 4ACR423B | Itasca | Illinois | United States | 10/5/2026 |
| James M. Leon doing business as DBA the Ultralight Place | 3TUR007B | Kankakee | Illinois | United States | 10/5/2026 |
| Jen-Air LLC | 9J3R658D | Chicago | Illinois | United States | 10/5/2026 |
| Jet Air INC | JAFR110F | Galesburg | Illinois | United States | 10/5/2026 |
| Joliet Avionics INC doing business as DBA J A Air Center | NF2R029L | Sugar Grove | Illinois | United States | 10/5/2026 |
| Kaney Aerospace INC doing business as DBA Bvr Technologies CO. | BPPR794K | Rockford | Illinois | United States | 10/5/2026 |
| Magnetic Inspection Laboratory INC | MYLR882K | Elk Grove Village | Illinois | United States | 10/5/2026 |
| Meco Company, LLC doing business as DBA Aerogen-Tek | ME6R179J | Paris | Illinois | United States | 10/5/2026 |
| Metal Improvement Company, LLC | ND2R027L | Addison | Illinois | United States | 10/5/2026 |
| Midamerica Jet Works, L.L.C. | M2MR578X | Sugar Grove | Illinois | United States | 10/5/2026 |
| Midwest Aero Support LLC | MXSR679E | Machesney Park | Illinois | United States | 10/5/2026 |
| Midwest Avionics LLC | JBCR030E | Decatur | Illinois | United States | 10/5/2026 |
| Midwest Helicopter Airways INC | JTKR388F | Willowbrook | Illinois | United States | 10/5/2026 |
| Mobile Avionics Technologies, INC | 3M4R325C | Lake In the Hills | Illinois | United States | 10/5/2026 |
| Northrop Grumman Corporation | 3NGR347B | Rolling Meadows | Illinois | United States | 10/5/2026 |
| Nova Chrome INC | FI5R858M | Franklin Park | Illinois | United States | 10/5/2026 |
| Otto | OGYR627Y | Carpentersville | Illinois | United States | 10/5/2026 |
| Panasonic Avionics Corporation | 2IFR277D | Elk Grove Village | Illinois | United States | 10/5/2026 |
| Parks Aviation Holdings, LLC. | 4IAR453C | Sauget | Illinois | United States | 10/5/2026 |
| Poplar Grove Airmotive INC | YYBR664L | Poplar Grove | Illinois | United States | 10/5/2026 |
| Power By Blueprint INC | 8PBR858C | Bedford Park | Illinois | United States | 10/5/2026 |
| Premier Air Center, LLC doing business as DBA West Star Aviation | PAZD068H | Wheeling | Illinois | United States | 10/5/2026 |
| Premier Air Center, LLC doing business as DBA West Star Aviation | PAZR068H | East Alton | Illinois | United States | 10/5/2026 |
| Quad City Aviation & Instruments | QCUR670X | Cambridge | Illinois | United States | 10/5/2026 |
| Quality Aircraft Testing and Repair LLC | QO6R347Y | Huntley | Illinois | United States | 10/5/2026 |
| Resurgent Aviation Solutions LLC | 8RLR128D | Aurora | Illinois | United States | 10/5/2026 |
| Rexnord Industries, LLC doing business as DBA Rexnord Seal Division | R3DR610Y | Downers Grove | Illinois | United States | 10/5/2026 |
| Righthand Technologies INC | 3R7R309C | Harwood Heights | Illinois | United States | 10/5/2026 |
| Saint Louis University | NI1R349K | Cahokia Heights | Illinois | United States | 10/5/2026 |
| Setna Partslab, LLC | STPR705E | Lincolnshire | Illinois | United States | 10/5/2026 |
| Srt Flightline | 9STR450B | Mount Vernon | Illinois | United States | 10/5/2026 |
| Standardaero Business Aviation Services, L.L.C. | UO2R221L | Springfield | Illinois | United States | 10/5/2026 |
| State of Illinois Dot Division of Aeronautics | LX5R031N | Springfield | Illinois | United States | 10/5/2026 |
| Superior Joining Technologies INC | 3SJR972Y | Machesney Park | Illinois | United States | 10/5/2026 |
| Synergy Flight Center LLC | 8SGR199C | Bloomington | Illinois | United States | 10/5/2026 |
| Temp Aircraft LLC | 1P5R894C | Taylorville | Illinois | United States | 10/5/2026 |
| The Flightstar Corporation | BONR551C | Savoy | Illinois | United States | 10/5/2026 |
| Travel Express Aviation LLC | TEAR362E | West Chicago | Illinois | United States | 10/5/2026 |
| U S Technicians INC | UXYR075Y | Des Plaines | Illinois | United States | 10/5/2026 |
| Unilode Aviation Solutions US INC doing business as DBA Chep Aerospace Solutions DBA Cchep Aerospace US, INC. DBA Unilode Aviation Solutions | F31R572Y | Elk Grove Village | Illinois | United States | 10/5/2026 |
| Video Refurbishing Services | VRFR360X | Carpentersville | Illinois | United States | 10/5/2026 |
| Waukegan Aviation Services INC doing business as DBA Waukegan Avionics | WOGR619K | Waukegan | Illinois | United States | 10/5/2026 |
| Win Win Aviation INC doing business as DBA Win Aviation INC. DBA Dekalb Avionics, LLC | 2WWR159D | Dekalb | Illinois | United States | 10/5/2026 |
| Woodward INC | UU2R227L | Loves Park | Illinois | United States | 10/5/2026 |
| Woodward Mpc | M74R907N | Niles | Illinois | United States | 10/5/2026 |
| Xri Testing | 6XIR129C | Niles | Illinois | 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.