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 airframe structure on the Cessna 337 Skymaster family newest first
The list behind a number on the Cessna 337 Skymaster page. Every order.
| Order | In force | Applies to | What it is about | System |
|---|---|---|---|---|
| 2011-15-11 | 2011-09-06 | Cessna Aircraft Company 337, 337A, 337B, 337C and 14 more | Wings | Airframe structure |
| 2010-21-18 | 2010-11-03 | Cessna Aircraft Company 336, 337, 337A, 337B and 24 more | Wings | Airframe structure |
| 78-09-05 | 1978-05-11 | Cessna Aircraft Company 336, 337, 337A, 337B and 15 more | Wing Spar Caps and Web Doublers | Airframe structure |
Source: FAA airworthiness directives (final rules and emergency directives) from the FAA's Dynamic Regulatory System, as of October 31, 2026. The FAA's text is the authority; this site adds the links to models, engines and the register. Related: aircraft systems · type certificates.