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FAA orders · 20,218 airworthiness directives on file

What the FAA has ordered

An airworthiness directive is an order: when the FAA finds an unsafe condition in a design, it tells the owners of every aircraft, engine or propeller of that design what to inspect, repair or replace, and by when. 20,218 are on file, 291 of them issued as emergencies, 310 so far this year. Each one here is linked to the model families and engine series it names, with the number of aircraft on the register today.

20,218 orders newest first

OrderIn forceApplies toWhat it is aboutSystem
48-07-01 Cessna Aircraft Company 120, 140 Stabilizer Attaching BoltsOther and general
48-06-05 The Boeing Company C54-DC, C54A-DC, C54B-DC, C54D-DC and 3 more Control Surface Attachment ReworkOther and general
48-06-03 Sierra Hotel Aero, Inc. Navion (Army L-17A) Hartzell Propeller Blade InspectionPropeller
48-06-02 Commonwealth Aircraft, Inc. 175, 180, 180F, 185 and 1 more Jury StrutsOther and general
48-05-04 Cessna Aircraft Company 120, 140 Operator Limitations PlacardOther and general
48-05-03 Bellanca Aircraft Corporation 14-13, 14-13-2 Trim Tab Bracket BoltsFlight controls
48-05-01 The Boeing Company DC3-G102, DC3-G102A, DC3-G103A, DC3-G202A and 10 more Oil Shutoff Valve 'O' RingsEngine
48-04-02 American Champion Aircraft Corp. 11AC, 11BC, 7AC Wing Rib ReworkAirframe structure
48-03-06 Scotts-Bell 47 Inc 47B, 47B3 Bushings InstallationOther and general
48-03-05 Airlift International, Inc., Curtiss-Wright Corporation C-46A, C-46D, C-46F, C-46R and 11 more Hydraulic LinesHeating, ice protection and utility systems
48-03-04 Frakes Aviation G-73 Landing Gear Hydraulic HoseLanding gear
48-03-02 The Boeing Company C54-DC, C54A-DC, C54B-DC, C54D-DC and 3 more Emergency Air BrakeLanding gear
48-02-06 The Boeing Company DC-6, DC-6A, DC-6B Inboard Nacelle Cover PlatesAirframe structure
48-02-05 The Boeing Company DC-6, DC-6A, DC-6B Outboard Accessory Cowling ReworkAirframe structure
48-02-04 The Boeing Company DC-6, DC-6A, DC-6B Brake Adjusting Pin ReplacementLanding gear
48-02-02 The Boeing Company C54-DC, C54A-DC, C54B-DC, C54D-DC and 3 more Fire Detector ClampOther and general
48-02-01 Scotts-Bell 47 Inc 47B, 47B3 Tail Rotor Drive ShaftRotorcraft systems
48-01-03 Sky Enterprises, Inc. RC-3 Elevator Trim Tab BushingFlight controls
48-01-02 FS 2003 Corp. PA-12 Cowl Support BracesOther and general
48-01-01 The Boeing Company C54-DC, C54A-DC, C54B-DC, C54D-DC and 3 more Wheel-Retaining FlangeLanding gear
47-51-16 The Boeing Company DC-6, DC-6A, DC-6B Flap Support ReworkFlight controls
47-51-15 The Boeing Company DC-6, DC-6A, DC-6B Brake ReliningLanding gear
47-51-14 Stolp-Adams Company Army YR-6A, (Navy) HOS-1 Pinion and Ring Gear InspectionOther and general
47-51-13 Bellanca Aircraft Corporation 14-13, 14-13-2, 14-13-3, 14-13-3W Cabin Heat Control ValveEngine
47-51-12 The Boeing Company DC3C-R-1830-90C, DC3C-S1C3G, DC3C-S4C4G Carburetor AirscoopEngine
47-51-11 Scotts-Bell 47 Inc 47B, 47B3 Pinion Gear and BearingsOther and general
47-51-10 Hawker Beechcraft Corporation D18C-T Birdproof WindshieldAirframe structure
47-51-08 Sky Enterprises, Inc. RC-3 Tailwheel HornsOther and general
47-51-07 Airlift International, Inc., Curtiss-Wright Corporation C-46A, C-46D, C-46F, C-46R and 11 more Landing Gear Drag StrutLanding gear
47-51-05 Airlift International, Inc., Curtiss-Wright Corporation C-46A, C-46D, C-46F, C-46R and 11 more Aileron HornFlight controls
47-51-04 Airlift International, Inc., Curtiss-Wright Corporation C-46A, C-46D, C-46F, C-46R and 11 more Propeller Antiheat ShieldPropeller
47-51-03 Airlift International, Inc., Curtiss-Wright Corporation C-46A, C-46D, C-46F, C-46R and 11 more Aileron Rib ReworkFlight controls
47-51-02 Airlift International, Inc., Curtiss-Wright Corporation C-46A, C-46D, C-46F, C-46R and 11 more Elevator Hinge BoltsFlight controls
47-50-13 Tarver Propellers, LLC F200 HubPropeller
47-50-12 Univair Aircraft Corporation 108, 108-1 Stabilizer attachment fittingOther and general
47-50-11 Univair Aircraft Corporation 108, 108-1 Ash tray modificationOther and general
47-50-09 Fairchild Personal Planes Division, Fairchild Engine and... 24R40 (Army UC-86), 24R40S, 24R46, 24R46A (Army UC-61K) and 13 more Landing Gear FittingsLanding gear
47-50-08 Sikorsky Aircraft Corporation S-51 Vertical Hinge PinsOther and general
47-50-05 EDO Corporation Floats FloatsAirframe structure
47-50-04 Consolidated Vultee Aircraft Corporation, Stinson Division L-5, L-5B, L-5C, L-5D and 3 more Elevator Push-Pull TubeFlight controls
47-50-02 Cessna Aircraft Company 120, 140 Fuselage BulkheadAirframe structure
47-49-12 Lockheed Aircraft Corporation 49-46, 649-79, 749-79 Landing Gear DoorsLanding gear
47-49-11 Lockheed Aircraft Corporation 49-46, 649-79, 749-79 Fuel System InspectionFuel system
47-49-10 Lockheed Aircraft Corporation 49-46 Astrodome ReworkOther and general
47-49-09 Lockheed Aircraft Corporation 49-46, 649-79, 749-79 Wing Attaching PinsAirframe structure
47-49-08 Lockheed Aircraft Corporation 49-46 Aileron Rib and Skin InspectionFlight controls
47-49-07 Lockheed Aircraft Corporation 49-46 Drag Link Bolt ReplacementOther and general
47-49-06 Lockheed Aircraft Corporation 49-46 Oil Pressure Gage PlacardOther and general
47-49-05 Lockheed Aircraft Corporation 49-46 Control Cable Housing FastenersFlight controls
47-49-04 Lockheed Aircraft Corporation 49-46 Rudder Pedal PinsFlight controls

Source: FAA airworthiness directives (final rules and emergency directives) from the FAA's Dynamic Regulatory System, as of November 9, 2026. The FAA's text is the authority; this site adds the links to models, engines and the register. Related: aircraft systems · type certificates.