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
| Order | In force | Applies to | What it is about | System |
|---|---|---|---|---|
| 49-27-01 | Consolidated Vultee Aircraft Corporation, Stinson Division BT-13, BT-13A (Army SNV-1), BT-13B (Navy SNV-2) | Fuel Line Rework | Fuel system | |
| 49-26-01 | Textron Aviation Inc. 35, A35 | Trailing Antenna Rework | Other and general | |
| 49-25-01 | Airlift International, Inc., Curtiss-Wright Corporation C-46A, C-46D, C-46F, C-46R and 11 more | Cargo Compartment Fire Protection | Other and general | |
| 49-23-01 | Boeing Airplane Company, Wichita Division 75 (Army PT-13), A75 (Army PT-13A, -13B, -13C), A75J1... and 8 more | Fuselage Truss | Airframe structure | |
| 49-18-01 | Airlift International, Inc., Curtiss-Wright Corporation C-46A, C-46D, C-46F, C-46R and 11 more | Combustion Heater Fire Protection | Heating, ice protection and utility systems | |
| 49-16-02 | Univair Aircraft Corporation 108-2, 108-3 | Wing fabric inspection | Airframe structure | |
| 49-16-01 | Grumman American Aviation Corporation G-21A (Army OA-9, Navy JRF-1, -2, -3, -4, -5, and -6B) | Fuel Tank Baffles | Fuel system | |
| 49-15-03 | Textron Aviation Inc. Army AT-11, C18S | Fuel Tank Vent System | Fuel system | |
| 49-15-02 | Martin-Marietta Corporation 202 | Wing Modifications | Airframe structure | |
| 49-15-01 | American Champion Aircraft Corp. 11AC, 11BC, S11AC | Seat Anchorage Rework | Cabin, seats and restraints | |
| 49-13-02 | Bellanca Aircraft Corporation 14-13, 14-13-2, 14-13-3 | Landing Gear Drag Strut | Landing gear | |
| 49-12-02 | Sierra Hotel Aero, Inc. Navion (Army L-17A), Navion A (Army L-17B and L-17C) | Fuel Pumps | Engine | |
| 49-12-01 | Airlift International, Inc., Curtiss-Wright Corporation C-46A, C-46D, C-46F, C-46R and 11 more | Aileron Trim Tab | Flight controls | |
| 49-11-02 | American Champion Aircraft Corp. 11AC, 11BC, 11CC, 7AC and 3 more | Wing Attach Fitting | Airframe structure | |
| 49-11-01 | Sierra Hotel Aero, Inc. Navion (Army L-17A), Navion A (Army L-17B and L-17C) | Carter Fuel Pump Rework | Fuel system | |
| 49-09-02 | Sierra Hotel Aero, Inc. Navion (Army L-17A), Navion A (Army L-17B and L-17C) | Booster Pump Rework | Other and general | |
| 49-07-03 | Consolidated Vultee Aircraft Corporation, Stinson Division BT-13, BT-13A (Army SNV-1), BT-13B (Navy SNV-2) | Fuel System Placard | Fuel system | |
| 49-07-02 | The Boeing Company AT-6 (SNJ-2), AT-6A (SNJ-3), AT-6B, AT-6C (SNJ-4) and 1 more | Fuel System Placard | Fuel system | |
| 49-06-02 | The Boeing Company DC-6, DC-6A, DC-6B | Attachment Bolts | Other and general | |
| 49-05-03 | Sierra Hotel Aero, Inc. Navion (Army L-17A), Navion A (Army L-17B and L-17C) | Continental Engines Bearing Inserts | Engine | |
| 49-05-01 | Lockheed Aircraft Corporation 749-79, 749A-79 | Curtiss 850-4C2-0 Propeller Blades | Propeller | |
| 49-04-01 | Textron Aviation Inc. 35, 35-33, 35-A33, 35-B33 and 3 more | Aileron Chain | Flight controls | |
| 49-03-01 | Sky Enterprises, Inc. RC-3 | AC Fuel Pump | Fuel system | |
| 48-52-01 | The Boeing Company DC-6, DC-6A, DC-6B | Connecting Power Leads | Other and general | |
| 48-51-02 | Kelowna Flightcraft R & D Ltd. 240 Series | Horizontal Tail Surfaces | Airframe structure | |
| 48-51-01 | Textron Aviation Inc. Army AT-11, C18S, D17S | Control Wheel Shaft Inspection | Landing gear | |
| 48-50-04 | Kelowna Flightcraft R & D Ltd. 240 Series | Nose Gear | Landing gear | |
| 48-50-03 | Martin-Marietta Corporation 202 | Control System Guards | Other and general | |
| 48-50-01 | Wytwornia Sprzetu Komunikacyjnego 6A4-150-B3, 6A4-150-B31 | Cylinder Base Flange | Engine | |
| 48-49-03 | The Boeing Company DC-6, DC-6A, DC-6B | Electrical Circuit Inspection | Electrical power | |
| 48-49-02 | Noorduyn Aviation Ltd. Army UC-64, Army UC-64A, Army UC-64AS, Army UC-64B | Float Wire Brace | Electrical power | |
| 48-49-01 | Don Luscombe Aviation History Foundation, Inc. 8, 8A, 8B, 8C and 4 more | Vertical Stabilizer Spar Fitting | Airframe structure | |
| 48-48-02 | The Boeing Company DC-6, DC-6A, DC-6B | Vacuum Pump Line Replacement | Heating, ice protection and utility systems | |
| 48-48-01 | Freedman Aircraft Engineering Corp. PC-203, PX-203, PY-203 | Hub | Propeller | |
| 48-45-01 | Fairchild Hiller Corporation M-62A, M-62A-3, M-62A-4, M-62B and 1 more | Wing Spar Inspection | Airframe structure | |
| 48-44-02 | Airlift International, Inc., Curtiss-Wright Corporation C-46A, C-46D, C-46F, C-46R and 11 more | Wing Attach Bolts | Airframe structure | |
| 48-44-01 | The Boeing Company C54-DC, C54A-DC, C54B-DC, C54D-DC and 3 more | Nose Gear Orifice Fitting | Landing gear | |
| 48-43-02 | Cessna Aircraft Company, Rogers, Burl A. 170, 170A, 15AC, S15AC | Continental C-145-2 Engines | Engine | |
| 48-43-01 | Martin-Marietta Corporation 202 | Hydraulic System Rework | Heating, ice protection and utility systems | |
| 48-42-02 | Lockheed Aircraft Corporation 18 | Fire Prevention Modification | Other and general | |
| 48-41-01 | Kelowna Flightcraft R & D Ltd. 240 Series | Wing Bulkhead Flanges and Stringers | Airframe structure | |
| 48-39-01 | American Champion Aircraft Corp. 7AC, 7ACA, 7BCM (Army L-16A), 7CCM (Army L-16B) and 18 more | Control Stick Rework | Other and general | |
| 48-34-02 | Aircraft Dusting & Spraying Sulphur Dusting | Sulphur Dusting | Other and general | |
| 48-34-01 | Textron Aviation Inc. Army AT-11, C18S, D18C, D18C-T and 1 more | Stabilizer Attachment Fittings | Other and general | |
| 48-33-01 | Lockheed Aircraft Corporation 149-46, 49-46, 649-79, 749-79 | Fuel System Placards | Fuel system | |
| 48-32-01 | Timm Aircraft Corporation N2T-1, PT-220-C | Throttle Quadrant Reinforcement | Other and general | |
| 48-31-01 | Gulfstream American Corporation G-44, G-44A | Stabilizer Strut | Landing gear | |
| 48-29-01 | Sierra Hotel Aero, Inc. Navion (Army L-17A) | Fuel Pump Drain | Engine | |
| 48-28-02 | The Boeing Company C54-DC, C54A-DC, C54B-DC, C54D-DC and 3 more | Cabin Heater Combustion Ducts | Cabin, seats and restraints | |
| 48-28-01 | Swift Museum Foundation, Inc. GC-1A, GC-1B | Fuselage Bulkhead Rework | Airframe structure |
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.