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 |
|---|---|---|---|---|---|
| Leading Edge Avionics INC | VZKR147E | Chino | California | United States | 10/5/2026 |
| Lee Air CO INC | BJ4R078M | Sun Valley | California | United States | 10/5/2026 |
| Lees Enterprise | L7MR335N | Chatsworth | California | United States | 10/5/2026 |
| Legacy Aircraft Instruments INC | L63R282Y | San Francisco | California | United States | 10/5/2026 |
| Legacy Aircraft Services INC | 1L5R474D | Van Nuys | California | United States | 10/5/2026 |
| Level III Ndt | N5DR176O | Hayward | California | United States | 10/5/2026 |
| Lincoln Skyways INC | 7LSR681C | Lincoln | California | United States | 10/5/2026 |
| Loree Air INC | ZUVR061J | Diamond Springs | California | United States | 10/5/2026 |
| Loyd'S Aircraft Maintenance INC | 7LOR165C | Bakersfield | California | United States | 10/5/2026 |
| Ls Ndt INC | L4ZR409Y | Rocklin | California | United States | 10/5/2026 |
| Ly-Con Rebuliding CO. | CT3R435L | Visalia | California | United States | 10/5/2026 |
| M & S Air Supply doing business as DBA Security Aviation | MH3R684L | Hawthorne | California | United States | 10/5/2026 |
| Madera Jet Center INC | 3R1R540D | Madera | California | United States | 10/5/2026 |
| Mag Aerospace Industries INC doing business as DBA Monogram Systems | MO8R749J | Carson | California | United States | 10/5/2026 |
| Main Turbo Systems INC | MAMR190K | Visalia | California | United States | 10/5/2026 |
| Martin Aviation, L. P. | M8VR406N | Santa Ana | California | United States | 10/5/2026 |
| Mason Electric CO. doing business as DBA Mason Controls | I39R153Y | Sylmar | California | United States | 10/5/2026 |
| Master Air Parts INC | 1MPR946Y | Santa Maria | California | United States | 10/5/2026 |
| Mather Aviation Modesto LLC | CUXR041D | Modesto | California | United States | 10/5/2026 |
| Mather Aviation, LLC | PCPR439B | Mather | California | United States | 10/5/2026 |
| Matternet, INC | MTRR297E | Mountain View | California | United States | 10/5/2026 |
| Maxon Aviation Services INC doing business as DBA Ray'S Aviation | R6AR284J | Santa Paula | California | United States | 10/5/2026 |
| Measuretech INC | UI9R906X | Chatsworth | California | United States | 10/5/2026 |
| Megahertz Avionics INC | DI3R450L | Bakersfield | California | United States | 10/5/2026 |
| Meggitt (North Hollywood) INC | QG3R788L | North Hollywood | California | United States | 10/5/2026 |
| Meggitt Safety Systems INC | WL3R949L | Simi Valley | California | United States | 10/5/2026 |
| Metal Fusion INC | CG3R422L | Redwood City | California | United States | 10/5/2026 |
| Metal Improvement Company | ZF3R022M | Lynwood | California | United States | 10/5/2026 |
| Metal Improvement Company INC | ZF3D022M | Santa Ana | California | United States | 10/5/2026 |
| Metal Improvement Company LLC | MPKR633X | Livermore | California | United States | 10/5/2026 |
| Metal Surfaces INC | MZTR048L | Bell Gardens | California | United States | 10/5/2026 |
| Mh Aviation INC | MHAR094E | Lancaster | California | United States | 10/5/2026 |
| Michael Schoenau doing business as DBA Valley Air Crafts | VLER830K | Tulare | California | United States | 10/5/2026 |
| Mid-Continent Instrument Co.,Inc. doing business as DBA Mid-Continent Instruments and Avionics | OL2D061L | Chatsworth | California | United States | 10/5/2026 |
| Mitchell Laboratories INC | YC3R992L | Pico Rivera | California | United States | 10/5/2026 |
| Momentum Fpd Services Corporation doing business as DBA Precision Display Repairs DBA Pdr | 9C1R145C | Camarillo | California | United States | 10/5/2026 |
| Moog INC doing business as DBA Moog Aircraft Group | ND13344K | Torrance | California | United States | 10/5/2026 |
| Moran Aerospace | 7M0R814D | Rancho Cucamonga | California | United States | 10/5/2026 |
| Mp Aero LLC | 1MQR180C | Valencia | California | United States | 10/5/2026 |
| National Process Industries INC | 3NPR290C | Temecula | California | United States | 10/5/2026 |
| National Sandblasting Company INC | NSXR286L | Los Angeles | California | United States | 10/5/2026 |
| Nd Testing INC | 2IQR997B | Fontana | California | United States | 10/5/2026 |
| Neal Aviation LLC doing business as DBA Neal Aviation | NOER688Y | El Cajon | California | United States | 10/5/2026 |
| New Clipper Aviation Maintenance, LLC DBA Clipper | 1MER830B | Van Nuys | California | United States | 10/5/2026 |
| New Tech Aircraft Services INC doing business as DBA Ntas Maintenance & & Engineering | 3NTR679B | Hawthorne | California | United States | 10/5/2026 |
| Newburn JR, William A doing business as DBA Pacific Coast Avionics | CJ3R425L | Fresno | California | United States | 10/5/2026 |
| Nextgen Avionics | N6AR810E | Bakersfield | California | United States | 10/5/2026 |
| Ni-Cad Systems INC | WB3R939L | Hayward | California | United States | 10/5/2026 |
| Niacc-Avitech Technologies INC | DC3R444L | Clovis | California | United States | 10/5/2026 |
| Nighthawk Flight Systems INC doing business as DBA N/A | K9VR912X | Vista | California | United States | 10/5/2026 |
| Norcal Avionics LLC | 852R050D | Watsonville | California | United States | 10/5/2026 |
| North Bay Aviation doing business as DBA None | UYVR051J | Fairfield | California | United States | 10/5/2026 |
| Northrop Grumman Systems CORP. | NOZR888K | Los Angeles | California | United States | 10/5/2026 |
| Northrop Grumman Systems Corporation | BP4R084M | Woodland Hills | California | United States | 10/5/2026 |
| Northwest Metrology | 4NMR499D | Bakersfield | California | United States | 10/5/2026 |
| Obrien Enterprises | QK3R792L | Signal Hill | California | United States | 10/5/2026 |
| Ocr Aviation | VTMR569K | Long Beach | California | United States | 10/5/2026 |
| Ontic Engineering and Manufacturing INC | OE6R225J | Chatsworth | California | United States | 10/5/2026 |
| Orbic Helicopters Sales and Service At Camarillo, | OH9R298H | Camarillo | California | United States | 10/5/2026 |
| Otto Instrument Service INC | WE2R263L | Ontario | California | United States | 10/5/2026 |
| P.J. Helicopters INC | AWTR306C | Red Bluff | California | United States | 10/5/2026 |
| Pac West Helicopters INC | PW6R116J | Redding | California | United States | 10/5/2026 |
| Pacific Aerodynamic INC | 5PCR956Y | Orange | California | United States | 10/5/2026 |
| Pacific Aircraft Maintenance | 9PFR470B | San Diego | California | United States | 10/5/2026 |
| Pacific Coast Enterprises INC doing business as DBA American Aircraft Interiors | BW3R412L | Carlsbad | California | United States | 10/5/2026 |
| Pacific Continental Engines, INC | TZ3R885L | Simi Valley | California | United States | 10/5/2026 |
| Pacific Oil Cooler Service INC | RF3R813L | La Verne | California | United States | 10/5/2026 |
| Pacific Sky Supply INC | QQPR566K | Sun Valley | California | United States | 10/5/2026 |
| Pacific States Aviation INC | CPFR948C | Concord | California | United States | 10/5/2026 |
| Pacwest Instrument Labs INC doing business as DBA Pacific Southwest Instruments | KD3R627L | Corona | California | United States | 10/5/2026 |
| Panasonic Avionics Corporation | IFC3459X | Burlingame | California | United States | 10/5/2026 |
| Panasonic Avionics Corporation | IFCR459X | Lake Forest | California | United States | 10/5/2026 |
| Paramount Panels INC | JC3R600L | Ontario | California | United States | 10/5/2026 |
| Parker Hannifin Corporation | 5PHR421B | Irvine | California | United States | 10/5/2026 |
| Parker Hannifin Corporation doing business as DBA Customer Support Commercial | AU4R063M | Irvine | California | United States | 10/5/2026 |
| Parker Hannifin Corporation Stratoflex Products di | PQ8R252Y | Camarillo | California | United States | 10/5/2026 |
| Pcj Maintenance LLC | AWQR303C | Napa | California | United States | 10/5/2026 |
| Peen Rite INC | UA3R886L | Sun Valley | California | United States | 10/5/2026 |
| Phs/Mwa doing business as DBA Phs/Mwa Aviation Services | OMXR603L | Temecula | California | United States | 10/5/2026 |
| Pitot Static Guys LLC | 2PUR923B | Yucca Valley | California | United States | 10/5/2026 |
| Plasma Technology INC | DN3R455L | Torrance | California | United States | 10/5/2026 |
| Pneudraulics INC | PD6R469J | Rancho Cucamonga | California | United States | 10/5/2026 |
| Pratt & Whitney Engine Services INC | EJ3R477L | Cypress | California | United States | 10/5/2026 |
| Precision Control Finishing | RO0R613Y | Santa Fe Springs | California | United States | 10/5/2026 |
| Precision Tube Bending | LW3R673L | Santa Fe Springs | California | United States | 10/5/2026 |
| Prima Air | Z5SR421Y | Burbank | California | United States | 10/5/2026 |
| Priority Aviation Maintenance INC | PMXR135E | La Verne | California | United States | 10/5/2026 |
| Procraft Aviation, LLC | JI3R606L | Corona | California | United States | 10/5/2026 |
| Psc Aero, LLC. | VACR249E | Irvine | California | United States | 10/5/2026 |
| Pti Technologies INC | E4CR200J | Oxnard | California | United States | 10/5/2026 |
| Pulsco INC | 4PUR849C | Pasadena | California | United States | 10/5/2026 |
| Quaker City Plating & Silversmith LTD. | Q6KR663B | Whittier | California | United States | 10/5/2026 |
| Qualified Technologies Corporation | Q2TR970X | Upland | California | United States | 10/5/2026 |
| Quality Grinding CO. INC | 2QGR030D | Buena Park | California | United States | 10/5/2026 |
| Quality Controlled Manufacturing INC | 9QCR216C | Santee | California | United States | 10/5/2026 |
| Quest International Monitor Service INC doing business as DBA Quest International, INC. | QIGR622Y | Irvine | California | United States | 10/5/2026 |
| Radiance Engineering LLC | RECR969D | Long Beach | California | United States | 10/5/2026 |
| Rave Aerospace, LLC doing business as DBA N/A | 9ZFR757C | Brea | California | United States | 10/5/2026 |
| Redding Air Service, INC | AUMR274C | Redding | California | United States | 10/5/2026 |
| Regency Air LLC | R71R718I | Costa Mesa | California | 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.