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. 20,214 are on file, 291 of them issued as emergencies, 306 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.
3 orders on engine on the Cessna A150 family newest first
The list behind a number on the Cessna A150 page. Every order.
| Order | In force | Applies to | What it is about | System |
|---|---|---|---|---|
| 86-24-07 | 1987-01-07 | Cessna Aircraft Company 150C, 150D, 150E, 150F and 141 more | Engine Controls Installation | Engine |
| 81-15-03 | 1981-07-20 | Cessna Aircraft Company, Mooney Aviation Company Inc 2150A, 120, 140, 140A and 115 more | Engine Inlet Air Filters | Engine |
| 75-15-08 | 1975-09-10 | Cessna Aircraft Company, Textron Aviation Inc. 150, 150A, 150B, 150C and 28 more | Engine Lubrication | Engine |
Source: FAA airworthiness directives (final rules and emergency directives) from the FAA's Dynamic Regulatory System, as of October 30, 2026. The FAA's text is the authority; this site adds the links to models, engines and the register. Related: aircraft systems · type certificates.