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.
314 orders from 1990 newest first
| Order | In force | Applies to | What it is about | System |
|---|---|---|---|---|
| 90-25-07 | 1990-12-31 | The Boeing Company 707-100 Long Body, 707-100B Long Body, 707-100B Short... and 6 more | Corrosion Control Program | Airframe structure |
| 90-25-05 | 1990-12-31 | The Boeing Company 747 Series (all) | Corrosion Control Program | Airframe structure |
| 90-25-03 | 1990-12-31 | The Boeing Company 727-100 Series, 727-100C Series, 727-200 Series, 727-200F Series and 2 more | Corrosion Control Program | Airframe structure |
| 90-25-01 | 1990-12-31 | The Boeing Company 737-100 Series, 737-200 Series, 737-200C Series, 737-300 Series and 5 more | Corrosion Control Program | Airframe structure |
| 90-26-03 | 1990-12-27 | Airbus A300 B4-103, A300 B4-203, A300 B4-601, A300 B4-603 and 11 more | Main Landing Gear Bogie Beam | Landing gear |
| 90-26-02 | 1990-12-27 | The Boeing Company 747-400 Series, 747-400D Series, 747-400F Series, 767-200 Series and 3 more | Cargo Compartment Fire Extinguisher | Other and general |
| 90-26-08 | 1990-12-26 | The Boeing Company 747-400 Series | Fire Detection System | Other and general |
| 90-26-05 | 1990-12-26 | The Boeing Company 737-300 Series, 737-400 Series, 737-500 Series, 757-200 Series | Seat Pan | Cabin, seats and restraints |
| 90-24-11 | 1990-12-26 | The Boeing Company 727-100 Series, 727-100C Series, 727-200 Series, 727-200F Series and 2 more | Bulkhead Web and Strap | Airframe structure |
| 90-25-15 | 1990-12-24 | F.28 Mark 0100 | MLG Wheel Assemblies | Landing gear |
| 90-24-10 | 1990-12-24 | Viking Air Limited DHC-7-1, DHC-7-100, DHC-7-101, DHC-7-102 and 1 more | Fuel Tank Lower Wing Skin Inspection | Fuel system |
| 90-24-04 | 1990-12-24 | The Boeing Company 737-200 Series, 737-300 Series, 737-400 Series | Outboard Flap Inspection | Flight controls |
| 90-25-14 | 1990-12-21 | The Boeing Company 737-300 Series, 737-400 Series, 737-500 Series | Wire Bundle Inspection | Electrical power |
| 90-26-01 | 1990-12-20 | General Electric Company CF6-80C2A1, CF6-80C2A2, CF6-80C2A3, CF6-80C2A5 and 10 more | Fuel Manifold Systems | Engine |
| 90-25-11 | 1990-12-17 | The Boeing Company DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83),... and 1 more | In-Flight Spoiler Lockout Mechanism | Other and general |
| 90-24-08 | 1990-12-17 | F.28 Mark 0100, F.28 Mark 1000, F.28 Mark 2000, F.28 Mark 3000 and 1 more | Fuselage Lap Joint | Airframe structure |
| 90-24-02 | 1990-12-17 | The Boeing Company 757-200 Series, 757-200CB Series, 757-200PF Series,... | Window Heat System Wiring | Electrical power |
| 90-25-06 | 1990-12-11 | Cessna Aircraft Company 650 | DME Antenna Cable Connectors | Other and general |
| 90-23-17 | 1990-12-11 | Textron Aviation Inc. DH.125 Series 1A | Rear Pressure Bulkhead | Airframe structure |
| 90-23-14 | 1990-12-11 | The Boeing Company 747-100 Series, 747-100B Series, 747-100B SUD Series,... and 8 more | Fuselage Lap Joints | Airframe structure |
| 90-23-12 | 1990-12-11 | The Boeing Company 737-300 Series, 737-400 Series | Auxiliary Power Unit Wiring | Engine |
| 90-24-07 | 1990-12-10 | MD Helicopters, Inc. 369D, 369E, 369F, 369FF | Main Rotor Transmission Bolts | Rotorcraft systems |
| 90-23-10 | 1990-12-10 | The Boeing Company DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83),... and 1 more | PTU Shut-Off Valve | Engine |
| 90-23-07 | 1990-12-10 | ATR - GIE Avions de Transport R gional, ATR - GIE Avions... ATR42-300, ATR42-320 | Emergency Lighting | Electrical power |
| 90-23-02 | 1990-12-10 | The Boeing Company DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83) | Mid Attendant's Oxygen Mask | Emergency equipment |
| 90-23-15 | 1990-12-06 | General Electric Company CF6-45A, CF6-45A2, CF6-50A, CF6-50C and 9 more | Turbine Mid-frame | Engine |
| 90-24-09 | 1990-12-05 | The Boeing Company 747 Series (all) | Flap Track Inspection | Flight controls |
| 90-23-08 | 1990-12-03 | Airbus Helicopters Deutschland GmbH BO-105C, BO-105S | Continuous Ignition System | Engine |
| 90-23-05 | 1990-12-03 | General Electric Company CF6-80A3 | Engine Aft Mount, | Engine |
| 90-23-03 | 1990-12-03 | Airbus Helicopters AS355E, AS355F, AS355F1, AS355F2 and 6 more | Main Rotor Servo Control | Rotorcraft systems |
| 90-23-13 | 1990-11-26 | F.28 Mark 0100 | AFM Changes - Operation | Other and general |
| 90-22-07 | 1990-11-26 | The Boeing Company 767-200 Series, 767-300 Series, 767-300F Series | Drain System | Other and general |
| 90-23-19 | 1990-11-23 | Pratt & Whitney Division JT9D-20, JT9D-20J, JT9D-3A, JT9D-7 and 12 more | Air Seal | Engine |
| 90-22-06 | 1990-11-21 | Airbus A300 B2-1A, A300 B2-1C, A300 B2-203, A300 B2K-3C and 9 more | Inspect Horizontal Stabilizer | Airframe structure |
| 90-22-04 | 1990-11-21 | The Boeing Company 767-200 Series, 767-300 Series, 767-300F Series | Escape Slides | Other and general |
| 90-22-01 | 1990-11-21 | The Boeing Company 757-200 Series, 757-200CB Series, 757-200PF Series,... | Fuel Boost Pump Bypass Valves | Other and general |
| 90-23-06 | 1990-11-19 | The Boeing Company 757-200 Series, 757-200CB Series, 757-200PF Series,... | Leading Edge Inspection | Other and general |
| 90-23-04 | 1990-11-19 | Airbus SAS A320-111, A320-211, A320-212, A320-214 and 3 more | Electrical Pitch Control | Electrical power |
| 90-22-03 | 1990-11-19 | The Boeing Company DC-10-10, DC-10-10F, DC-10-15, DC-10-30 and 2 more | Manifold Valves | Other and general |
| 90-21-22 | 1990-11-19 | Textron Aviation Inc. BAe.125 Series 800A, BAe.125 Series 800A (C-29A),... | Main Landing Gear | Landing gear |
| 90-21-20 | 1990-11-19 | Airbus A320-111, A320-211, A320-231 | Relay box wiring & angle of attack sensors | Instruments and avionics |
| 90-21-14 | 1990-11-19 | Airbus A320-111, A320-211, A320-212, A320-214 and 3 more | Ejection Jack | Other and general |
| 90-21-21 | 1990-11-16 | The Boeing Company 747-100 Series, 747-100B Series, 747-100B SUD Series,... and 8 more | Pneumatic Duct Brackets | Heating, ice protection and utility systems |
| 90-21-17 | 1990-11-16 | The Boeing Company 747-100 Series, 747-100B Series, 747-100B SUD Series,... and 8 more | Fuselage Skin Inspection | Airframe structure |
| 90-21-15 | 1990-11-16 | The Boeing Company 737-100 Series, 737-200 Series, 737-200C Series, 737-300 Series and 5 more | Horizontal Stabilizer | Airframe structure |
| 90-11-01 | 1990-11-16 | Viking Air Limited DHC-6-1, DHC-6-100, DHC-6-200, DHC-6-300 | Elevator Pushrod Assembly | Flight controls |
| 90-21-18 | 1990-11-14 | Gulfstream Aerospace Corporation G-IV | Rubber Radome Seal | Other and general |
| 90-21-16 | 1990-11-14 | Saab AB, Saab Aerosystems 340A (SAAB SF340A) | Electrical Control Units | Electrical power |
| 90-24-06 | 1990-11-13 | Honeywell International Inc. TFE731-2, TFE731-2A, TFE731-3, TFE731-3A and 7 more | Thermocouple Lead Assemblies | Engine |
| 90-24-01 | 1990-11-13 | Honeywell International Inc. ALF502R-3, ALF502R-3A, ALF502R-4, ALF502R-5 and 1 more | High Compressor Disks | Engine |
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.