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.
189 orders from 1981 newest first
| Order | In force | Applies to | What it is about | System |
|---|---|---|---|---|
| 81-26-06 | 1981-12-31 | Lockheed Martin Corporation L-1011-385-1, L-1011-385-1-14, L-1011-385-1-15, L-1011-385-3 | Electrical System Modification | Electrical power |
| 81-26-04 | 1981-12-31 | M7 Aerospace LLC SA226-AT, SA226-T, SA226-TC | Cable Guard & Retainer Installation | Other and general |
| 81-24-09 | 1981-12-28 | Lockheed Martin Corporation 188A, 188C | Propeller Performance | Propeller |
| 81-04-51 R1 | 1981-12-28 | The Boeing Company DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83),... | Autothrottle Disengage | Instruments and avionics |
| 81-26-02 | 1981-12-21 | Airbus Helicopters SA-360C Dauphin, SA-365C, SA-365C1, SA-365C2 | Stabilizer Spar Tube Structure | Airframe structure |
| 81-13-09 R2 | 1981-12-18 | Airbus Helicopters AS355E, AS355F, AS350B, AS350C and 2 more | Tail Rotor Blades Pitch Horn | Rotorcraft systems |
| 73-12-03 R1 | 1981-12-10 | Rolls-Royce Deutschland Ltd & Co KG Dart 542-10, Dart 542-10J, Dart 542-10K | Engine Mounting Foot Stud | Engine |
| 81-25-01 | 1981-12-07 | Maule Aerospace Technology, Inc., Woodward Governor Company M-5-235C, Flyweights | Flyweights | Propeller |
| 81-13-51 | 1981-12-07 | Bombardier Inc. CL-600-1A11 (CL-600), CL-600-2A12 (CL-601), CL-600-2B16... and 2 more | Wheel Brake Assembly | Landing gear |
| 81-07-10 R1 | 1981-11-30 | Hughes Helicopters 369 Series | Cargo hook operating time recordation | Other and general |
| 75-12-09 R2 | 1981-11-28 | Twin Commander Aircraft LLC 500, 500-A, 500-B, 500-S and 11 more | Inadvertent Structural Failure | Airframe structure |
| 81-08-51 | 1981-11-25 | Viking Air Limited DHC-7-1, DHC-7-100, DHC-7-101, DHC-7-102 and 1 more | Main Landing Gear | Landing gear |
| 81-24-06 | 1981-11-23 | Continental Motors GTSIO-520-C, GTSIO-520-D, GTSIO-520-E, GTSIO-520-H and 50 more | Engine Driven Fuel Pumps | Engine |
| 81-24-02 | 1981-11-23 | Gulfstream Aerospace Corporation G-1159, G-1159A | Hydraulic System Fluid Flow | Heating, ice protection and utility systems |
| 81-24-07 | 1981-11-20 | Piper Aircraft Inc. PA-32R-300, PA-32R-301 (SP), PA-32R-301T, PA-32RT-300 and 1 more | Nose Landing Gear Modification | Landing gear |
| 81-13-10 R1 | 1981-11-20 | Continental Motors IO-360-A, IO-360-AB, IO-360-C, IO-360-D and 27 more | Oil Pressure | Engine |
| 81-24-04 | 1981-11-19 | M7 Aerospace LLC SA226-AT, SA226-T, SA226-TC, SA226-T(B) | Icing Conditions | Other and general |
| 81-24-01 | 1981-11-19 | Piper Aircraft Inc. PA-36-285, PA-36-300, PA-36-375 | Rudder Control And Harness Cable Assemblies | Flight controls |
| 81-06-08 | 1981-11-19 | Piper Aircraft Inc. PA-18-150 | Lower Fuselage Attachment Tab | Airframe structure |
| 81-24-03 | 1981-11-16 | True Flight Holdings LLC AA-5, AA-5A, AA-5B | Engine Power Loss Prevention | Engine |
| 81-23-07 | 1981-11-16 | Piper Aircraft Inc. PA-38-112 | Engine Mount Assembly | Engine |
| 81-23-06 | 1981-11-16 | Piper Aircraft Inc. PA-31P, PA-31T, PA-31T1 | Flap Track Structure | Flight controls |
| 76-05-07 R2 | 1981-11-16 | Piper Aircraft Inc. PA-36-285, PA-36-300, PA-36-375 | Rudder Control System | Flight controls |
| 81-20-04 R1 | 1981-11-13 | The Boeing Company 727-200 Series, 737-100 Series, 737-200 Series, 737-200C Series and 6 more | Hamilton Standard Pressurization Controllers | Other and general |
| 81-20-03 | 1981-11-12 | Agusta S.p.A. A109A, A109A II | Drive Shaft Support Bearings | Rotorcraft systems |
| 81-14-03 R1 | 1981-11-12 | British Aerospace (Commercial Aircraft) Ltd Argosy AW.650 Series 101 | Tailboom Frame 28 | Airframe structure |
| 81-12-06 R1 | 1981-11-12 | Bendix, Lycoming Engines Magnetos, LTIO-540-J2BD, TIO-540-J2BD | Magnetos | Engine |
| 81-23-04 | 1981-11-09 | Sikorsky Aircraft Corporation S-76A | Main Gearbox Overhaul | Other and general |
| 81-22-01 | 1981-11-05 | The Boeing Company DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83),... | Slat Control Valve Assembly | Engine |
| 81-21-01 | 1981-11-04 | Airbus Helicopters SA.315B Alouette III | Erc Cargo Hook Assemblies | Other and general |
| 81-22-03 | 1981-11-02 | Viking Air Limited DHC-6-1, DHC-6-100, DHC-6-200, DHC-6-300 | Elevator Torque Tube | Flight controls |
| 81-22-02 | 1981-10-29 | Kelowna Flightcraft R & D Ltd. 340, 440, Military C-131B, Military C-131D and 2 more | Elevator Outer Torque Tube | Flight controls |
| 81-16-06 R1 | 1981-10-26 | The Boeing Company DC-10-10, DC-10-10F, DC-10-15, DC-10-30 and 5 more | Generator Operation | Electrical power |
| 81-12-51 | 1981-10-22 | Flug- und Fahrzeugwerke Ag Diamant 16.5, HBV Diamant | Rudder Close Tolerance Bolt | Flight controls |
| 81-21-05 | 1981-10-19 | Artex Aircraft Supplies, Inc. Battery Packs | Battery Packs | Emergency equipment |
| 81-21-03 | 1981-10-18 | de Havilland Aircraft Co., Ltd., The D.H.114 Heron Series 2A, D.H.114 Heron Series 2DA,... | Wing Leading Edge Access Doors | Airframe structure |
| 81-08-01 R1 | 1981-10-18 | Lockheed Martin Corporation L-1011-385-1, L-1011-385-1-14, L-1011-385-1-15, L-1011-385-3 | Brake System Check | Landing gear |
| 81-19-06 | 1981-10-14 | Dassault Aviation Falcon 10 | Seat Belt Attachments | Cabin, seats and restraints |
| 67-25-01 R1 | 1981-10-14 | Airbus SAS BAC 1-11 200 Series, BAC 1-11 400 Series | Main Undercarriage Down Lock Jacks | Other and general |
| 81-21-06 | 1981-10-12 | Airbus Helicopters SA330F, SA330G, SA330J | Main Rotor Heads | Rotorcraft systems |
| 81-21-04 | 1981-10-08 | Sikorsky Aircraft Corporation S-76A | Main Rotor Scissors Assembly | Rotorcraft systems |
| 81-11-02 R1 | 1981-10-02 | Piper Aircraft Inc. PA-28R-200, PA-28R-201, PA-28RT-201 | Oil Drain Valves | Other and general |
| 81-19-02 | 1981-09-30 | Bell Helicopter Textron, Inc. 204B, 205A, 205A-1, 205B | Main Rotor Yoke | Rotorcraft systems |
| 81-19-01 | 1981-09-30 | Bell Helicopter Textron, Inc. 212 | Main Rotor Yoke | Rotorcraft systems |
| 81-19-05 | 1981-09-28 | The Boeing Company DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83),... | Thrust Reversers | Other and general |
| 80-25-07 R1 | 1981-09-24 | American Champion Aircraft Corp., Cessna Aircraft Company 7ECA, 7GCAA, 7GCBC, 7KCAB and 38 more | Oil Coolers | Other and general |
| 81-18-01 | 1981-09-22 | Bell Helicopter Textron (Canada), Bell Helicopter... 206A, 206A-1 (OH-58A), 206B, 206B-1 and 2 more | Main Rotor Trunnions | Rotorcraft systems |
| 81-19-08 | 1981-09-21 | General Electric Company CF6-6D, CF6-6D1, CF6-6D1A, CF6-6K and 1 more | Low Pressure Turbine Rotor Stage 2 Disks | Engine |
| 81-07-51 R1 | 1981-09-21 | Sikorsky Aircraft Corporation S-76A | Main Rotor Spindles | Rotorcraft systems |
| 81-19-07 | 1981-09-20 | The Boeing Company 727-100 Series, 727-100C Series, 727-200 Series, 727-200F Series and 2 more | Air Flow Multiplier | Other and general |
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.