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.
142 orders on engine of the 1960s newest first
| Order | In force | Applies to | What it is about | System |
|---|---|---|---|---|
| 63-15-01 | 1969-12-31 | Continental Motors E165-2, E165-3, E165-4, E185-1 and 40 more | Exhaust Valves | Engine |
| 69-26-03 | 1969-12-25 | Rolls-Royce Corporation 250-C18, 250-C18A, 250-C18B, 250-C18C | Modify Power and Accessories Gear Box | Engine |
| 70-02-09 | 1969-12-19 | Sabreliner Corporation NA-265-40, NA-265-60 | Engine Thrust Reverser | Engine |
| 69-26-02 | 1969-12-18 | de Havilland Aircraft Co., Ltd., The D.H.114 Heron Series 2A, D.H.114 Heron Series 2DA,... | Engine Mount Wing Straps | Engine |
| 69-23-05 | 1969-12-11 | DaimlerChrysler Aerospace AG Bolkow Jr. | Lower Engine Mount Bolts | Engine |
| 69-25-03 | 1969-12-05 | The Boeing Company 727-100 Series, 727-100C Series, 727-200 Series, 727-200F Series and 2 more | Engine Cone Bolt Failures | Engine |
| 69-23-06 | 1969-11-15 | Pratt & Whitney Canada Corp. PT6A-20, PT6A-27, PT6A-28, PT6A-6 and 3 more | Fuel Pumps | Engine |
| 69-21-03 | 1969-10-21 | Rolls-Royce Corporation 501-D13, 501-D13A, 501-D13D, 501-D13E and 5 more | First Stage Compressor Wheels | Engine |
| 69-18-04 | 1969-10-18 | Rolls-Royce Corporation 250-C10 (T63-A-5), 250-C10B (T63-A-5A), 250-C10D... and 3 more | Torquemeter Shaftgear | Engine |
| 69-16-07 | 1969-10-02 | The Boeing Company DC-8-62, DC-8-62F, DC-8-63, DC-8-63F | Engine Pod Latch Eyebolt | Engine |
| 69-18-05 | 1969-09-04 | Continental Motors TSIO-520-B, TSIO-520-D, TSIO-520-E | Turbocharger Lubricating Oil Scavenge Pump | Engine |
| 69-18-02 | 1969-09-03 | Rolls-Royce Corporation 250-C10 (T63-A-5), 250-C10B (T63-A-5A), 250-C10D... and 3 more | Internal Splines | Engine |
| 69-16-05 | 1969-08-30 | Rolls-Royce Corporation 250-C18 | Lower Gear Box and Oil Outlet Magnetic Plugs | Engine |
| 69-17-03 | 1969-08-27 | General Electric Company T58-GE-5, T58-GE-1, CT58-100-2, CT58-110-1 and 3 more | First and Second Stage Turbine Rotor Discs | Engine |
| 69-15-06 | 1969-08-15 | Learjet Inc. 23, 24, 25 | Engine Throttle Cable | Engine |
| 69-10-02 | 1969-06-12 | Vickers-Armstrongs (Aircraft Limited) Viscount 744, Viscount 745D, Viscount 810 | Fire Protection Cabin Compressor | Engine |
| 69-08-09 | 1969-04-23 | Lycoming Engines IO-540-G1A5 | LYCOMING ENGINES Model IO-540-G1A5 Engines | Engine |
| 69-02-02 | 1969-02-14 | General Electric Company CJ805-23, CJ805-23B, CJ805-23C, CJ805-3 and 2 more | Compressor | Engine |
| 69-01-01 | 1969-02-01 | Maryland Air Industries, Inc. F-27, F-27A, F-27B, F-27F and 8 more | Engine Fire Extinguisher | Engine |
| 68-26-05 | 1969-01-19 | Vickers-Armstrongs (Aircraft Limited) Viscount 744, Viscount 745D, Viscount 810 | Engine Nacelle Cross Beam | Engine |
| 66-06-03 | 1969-01-16 | Lycoming Engines, Textron Lycoming, AVCO Corporation GO-435-C2 (O-435-17), GO-435-C2A, GO-435-C2A2, GO-435-C2B and 316 more | Connecting Rod Assemblies | Engine |
| 68-25-04 | 1969-01-07 | Vickers-Armstrongs (Aircraft Limited) Viscount 744, Viscount 745D, Viscount 810 | Nose Steering Relief Valve | Engine |
| 68-16-04 | 1968-12-27 | Kelowna Flightcraft R & D Ltd. 240 Series, 340, 440 | Exhaust Ducts | Engine |
| 68-22-02 | 1968-11-01 | Rolls-Royce Corporation 250-C10B (T63-A-5A), 250-C18, 250-C18A | Compressor Assemblies | Engine |
| 68-21-03 | 1968-10-28 | Piper Aircraft Inc. PA-23-250 (Navy UO-1), PA-E23-250 | Exhaust Tailpipe Assemblies | Engine |
| 68-21-04 | 1968-10-17 | Textron Aviation Inc. 65-90, 65-A90, 65-A90-1, B90 | Ice Damage to Engine | Engine |
| 63-23-02 | 1968-08-06 | Lycoming Engines O-320-A1A, O-320-A1B, O-320-A2A, O-320-A2B and 24 more | Exhaust Valves | Engine |
| 68-16-01 | 1968-08-05 | Textron Aviation Inc. DH.125 Series 1A, DH.125 Series 1A-522, DH.125 Series... and 4 more | Placard To Prevent Engine Flameout | Engine |
| 68-12-06 | 1968-06-18 | Rolls-Royce Corporation 250-C10B (T63-A-5A), 250-C18, 250-C18A, 250-C18B and 2 more | Compressor Blades | Engine |
| 68-12-03 | 1968-06-12 | Pratt & Whitney Division JT4A-10, JT4A-11, JT4A-12, JT4A-3 and 2 more | High Compressor Rotor Blade Failure | Engine |
| 67-26-02 | 1968-05-22 | Piper Aircraft Inc. PA-28-140, PA-28-150, PA-28-160, PA-28-180 and 7 more | Fuel Selector Valve | Engine |
| 68-08-08 | 1968-05-19 | Lycoming Engines IGSO-480-A1A6, IGSO-480-A1B6, IGSO-480-A1C6, IGSO-480-A1F6 and 43 more | Hydraulic Valve | Engine |
| 68-05-01 | 1968-03-31 | FS 2001 Corp., FS 2002 Corp. J5A-80, J5A (Army L-4F), J5B (Army L-4G), J5C and 66 more | Exhaust Mufflers | Engine |
| 68-04-02 | 1968-03-15 | Bell Helicopter Textron Canada Limited 206A | Exhaust Stack Clamp Failure | Engine |
| 68-05-03 | 1968-02-28 | Pratt & Whitney Canada Corp. PT6A-20, PT6A-6B | Reverse Mode | Engine |
| 68-02-01 | 1968-02-16 | Rolls-Royce Limited Gipsy Queen 70-4, Gipsy Queen 70 MK2, Gipsy Queen 70 MK3 | Crankshaft Front End | Engine |
| 68-03-05 | 1968-02-13 | Dassault Aviation Fan Jet Falcon | Selector Valve Control Cables | Engine |
| 66-04-01 | 1968-02-07 | General Electric Company CJ805-23, CJ805-23B, CJ805-23C, CJ805-3 and 2 more | Thrust Reverser | Engine |
| 67-30-06 | 1967-12-22 | Piper Aircraft Inc. PA-32-300, PA-32S-300 | Engine Air Induction System | Engine |
| 67-30-04 | 1967-12-11 | Textron Aviation Inc. DH.125 Series 1A, DH.125 Series 1A-522 | Engine Mount Beam Failure | Engine |
| 67-26-01 | 1967-12-05 | Airbus SAS BAC 1-11 200 Series | Yaw Damper Control Valve Drift | Engine |
| 67-29-03 | 1967-10-27 | Maryland Air Industries, Inc. F-27J, FH-227, FH-227B, FH-227C and 2 more | APU Fire Detection System | Engine |
| 67-28-05 | 1967-10-24 | Pratt & Whitney Division JT3D-1, JT3D-1-MC6, JT3D-1-MC7, JT3D-3 and 1 more | First Stage Fan Hub | Engine |
| 67-27-01 | 1967-10-09 | Dassault Aviation Fan Jet Falcon | Engine Power Lever | Engine |
| 67-28-04 | 1967-10-05 | General Electric Company CJ805-23, CJ805-23B, CJ805-23C, CJ805-3 and 2 more | Compressor Disc | Engine |
| 67-27-06 | 1967-10-03 | Rolls-Royce Deutschland Ltd & Co KG Dart 542-10, Dart 542-4 | Fuel and Oil Hoses | Engine |
| 67-23-04 | 1967-08-31 | Maryland Air Industries, Inc. F-27J, FH-227, FH-227B, FH-227C and 2 more | Engine Generator Electrical System | Engine |
| 67-22-08 | 1967-08-25 | Rolls-Royce Deutschland Ltd & Co KG Spey 506-14 | Fuel Flow Controls | Engine |
| 67-24-02 | 1967-08-17 | Piper Aircraft Inc. PA-22, PA-22-108, PA-22-135, PA-22-150 and 4 more | Engine Fuel Starvation | Engine |
| 67-22-06 | 1967-08-09 | Lycoming Engines HIO-360-A1A, HIO-360-B1A, HIO-360-B1B, HIO-360-C1A and 27 more | Fuel Injectors | Engine |
Source: FAA airworthiness directives (final rules and emergency directives) from the FAA's Dynamic Regulatory System, as of November 3, 2026. The FAA's text is the authority; this site adds the links to models, engines and the register. Related: aircraft systems · type certificates.