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 |
|---|---|---|---|---|
| 51-23-03 | 1956-12-04 | Piper Aircraft Inc. PA-16, PA-20, PA-22 | Battery Box Insulation | Electrical power |
| 51-19-02 | 1956-12-04 | Piper Aircraft Inc. PA-18, PA-20, PA-22 | Oil Radiator Hose | Other and general |
| 50-23-01 | 1950-12-06 | Piper Aircraft Inc. PA-15, PA-17 | Shock Strut Fittings | Landing gear |
| 50-05-01 | 1950-06-17 | Piper Aircraft Inc. PA-12, PA-12S, J3C-40, J3C-50 and 5 more | Nicopress Sleeve Rework | Other and general |
| 49-14-01 | 1950-06-17 | FS 2003 Corp., Piper Aircraft Inc. J-3, J3C-40, J3C-50, J3C-50S and 16 more | Elevator Connector Tube Fitting | Flight controls |
| 49-06-04 | 1950-06-17 | Aero Spacelines, Incorporated 377, 377MG, 377SGT | Altitude Compensating Bellows | Other and general |
| 48-03-03 | 1950-06-17 | Piper Aircraft Inc. PA-11 | Header Tank Installation | Other and general |
| 47-50-06 | 1950-06-17 | Piper Aircraft Inc. J3C-65S, PA-11, J3C-65 (Army L-4; L-4A; L-4B (Navy... | Shock Strut Cracks | Landing gear |
| 47-50-03 | 1950-06-17 | Piper Aircraft Inc. J-3, J3C-40, J3C-50, J3C-50S and 13 more | Canvas Seat Inspection | Cabin, seats and restraints |
| 46-37-02 | 1950-06-17 | Piper Aircraft Inc. J3C-65S, J3C-65 (Army L-4; L-4A; L-4B (Navy NE-1); L-4H;... | Fuel Strainer Position | Other and general |
| 46-37-01 | 1950-06-17 | Piper Aircraft Inc. PA-12, PA-12S, J3C-65S, J3C-65 (Army L-4; L-4A; L-4B... | Fuel Strainer Gasket | Other and general |
| 48-38-01 | 1948-12-01 | Rogers, Burl A. 15AC, S15AC | Oil Cooler Installation | Other and general |
| 47-30-08 | 1947-09-30 | Gores, William 65-CA (Army L-3F), 65-LA, S-65-CA | Seat Modification | Cabin, seats and restraints |
| 74-03-04 | 1947-02-04 | Kelowna Flightcraft R & D Ltd. 240 Series | Pilot and Co-pilot Window Frame Castings | Airframe structure |
| 46-40-01 | 1946-12-31 | Fairchild Industries, Inc. 24 C8, 24 C8A, 24 C8B, 24 C8D and 28 more | Fuel Tank Selector Valve Placard | Engine |
| T98-26-51 | The Boeing Company DC-8-11, DC-8-12, DC-8-21, DC-8-31 and 23 more | Main Deck Cargo Door | Airframe structure | |
| T95-18-51 | Hamilton Standard Division, Hamilton Sundstrand 14RF-19, 14RF-21, 14RF-9, 14SF- 5 and 8 more | Blade Taper Bore | Propeller | |
| T95-01-51 | Airbus A300-600 Series (all), A300 Series (all), A310 Series... and 1 more | Cockpit Sliding Window | Airframe structure | |
| T91-11-51 | Hamilton Standard Division, Hamilton Sundstrand 6/5500/F-1, 14RF-19, 14RF-21, 14RF-9 and 4 more | Loss of control of the propeller system | Propeller | |
| T85-21-51 | The Boeing Company 767 Series (all) | Airframe Self-Locking Nuts | Other and general | |
| T84-18-51 | Bell Helicopter Textron, Inc. 214ST | Main Rotor Spindles | Rotorcraft systems | |
| T83-25-51 R1 | Columbia Helicopters, Inc. 234 | Rotor Head Horizontal Hinge Pins | Other and general | |
| T83-03-51 | Honeywell International Inc. ALF502L, ALF502L-2, ALF502L-2A, ALF502L-2C and 6 more | Fourth Stage Turbine Rotors Assembly | Engine | |
| 99-26-20 L | MD Helicopter Inc., MD Helicopter Inc. MD900 | Hub assembly Drive Plate Attach Flange | Other and general | |
| 99-17-07 | Eurocopter Deutschland GmbH, Eurocopter Deutschland GmbH MBB-BK 117 A-1, MBB-BK 117 A-3, MBB-BK 117 A-4, MBB-BK 117 B-1 and 2 more | Tension-torsion Strap | Other and general | |
| 99-09-17 | Teledyne Continental Motors, Teledyne Continental Motors IO-470-A, IO-470-C, IO-470-D, IO-470-E and 113 more | Crankshaft | Engine | |
| 98-23-01 | Parker Hannifin Corporation Dry Air Pumps, Conversion Kit, Coupling Kit | Dry Air Pumps, Conversion Kits, and Coupling Kits | Other and general | |
| 98-14-08 | Robinson Helicopter Company R22, R22 ALPHA, R22 BETA, R22 MARINER | Flexplate | Other and general | |
| 98-01-08 | Continental Motors, Continental Motors IO-470-C, IO-470-D, IO-470-E, IO-470-F and 458 more | Exhaust Roller Rocker Arm | Engine | |
| 98-01-01 | Cessna Aircraft Company 172R, 182S | Placard in Cockpit | Other and general | |
| 97-20-09 PL | California Department of Forestry, AST, Inc UH-1F, UH-1F, TH-1F, TH-1L and 30 more | Tailboom Vertical Fin Spar | Airframe structure | |
| 97-15-15 emergency | Eurocopter France SA-365N, SA-365N1, SA-366G1 | Main Gearbox (MGB) Planetary Gear Shaft | Other and general | |
| 97-15-01 | Teledyne Continental Motors E165-2, E165-3, E165-4, E185-1 and 60 more | Pistons | Engine | |
| 97-10-04 | Sikorsky Aircraft Corporation S-61A, S-61D, S-61E, S-61L and 4 more | Blade Trailing Edge Pocket Assemblies | Other and general | |
| 96-21-12 PL | Bell Helicopter Textron (Canada), Bell Helicopter... 407 | Placard -- Inflight Engine Shut-downs | Engine | |
| 95-24-10 | Michelin Aircraft Tire Corporation Tires | Tires | Landing gear | |
| 95-18-06 R1 | Hamilton Standard Division, Hamilton Sundstrand 14RF-19, 14RF-21, 14RF-9, 14SF- 5 and 8 more | Blade Taper Bore | Propeller | |
| 95-18-06 PL | Hamilton Standard Division, Hamilton Sundstrand 14RF-19, 14RF-21, 14RF-9, 14SF- 5 and 8 more | Blade Taper Bore | Propeller | |
| 94-14-12 | Teledyne Continental Motors, Teledyne Continental Motors A-65-8, C85-12, E185-11, GO-300-A and 67 more | Octane Aviation Gasoline | Engine | |
| 94-11-01 | Robinson Helicopter Company R22, R22 ALPHA, R22 BETA, R22 MARINER | Flexplate | Other and general | |
| 92-14-02 | The Boeing Company 747-100 Series, 747-100B Series, 747-100B SUD Series,... and 8 more | Life Raft Mooring Line | Emergency equipment | |
| 92-13-08 | The Boeing Company 747-400 Series, 747-400D Series | Drain Masts | Other and general | |
| 92-08-05 | The Boeing Company 767-200 Series, 767-300 Series, 767-300F Series | AFT Galley Tire Rods | Landing gear | |
| 92-07-13 | The Boeing Company 767-200 Series, 767-300 Series, 767-300F Series | Girt Bar Carrier | Other and general | |
| 92-02-19 PL | Honeywell International Inc. TPE331-10, TPE331-10A, TPE331-10AV, TPE331-10B and 28 more | Fuel Manifold Assembly Leak | Engine | |
| 91-04-02 emergency | Honeywell International Inc. TPE331-1, TPE331-2, TPE331-2UA, TPE331-3U and 6 more | Third stage stator assembly | Engine | |
| 90-21-01 | Honeywell International Inc. TPE331-1, TPE331-2, TPE331-2UA, TPE331-3U and 6 more | Third stage stator assembly | Engine | |
| 90-02-23 PL | Hartzell Propeller, Inc. HC-C2Y, HC-E2Y | Hubs | Propeller | |
| 89-22-16 | Honeywell International Inc. TFE731-2, TFE731-5, TFE731-5AR, TFE731-5R | Engine Acceleration or Deceleration | Engine | |
| 89-22-01 R1 L | Bell Helicopter Textron Canada Limited 206A, 206A-1 (OH-58A), 206B, 206B-1 and 3 more | Main Rotor Blades | Rotorcraft systems |
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.