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.
5 orders on engine on the Cessna 421 Golden Eagle family newest first
The list behind a number on the Cessna 421 Golden Eagle page. Every order.
| Order | In force | Applies to | What it is about | System |
|---|---|---|---|---|
| 2004-25-16 R1 | 2005-06-20 | Bombardier Inc., Cessna Aircraft Company CL-215-1A10, CL-215-6B11 (CL-215T Variant), CL-215-6B11... and 63 more | Fuel regulator shutoff valve | Engine |
| 2000-01-16 | 2000-02-15 | Cessna Aircraft Company 320, 320-1, 320A, 320B and 27 more | Exhaust System | Engine |
| 96-12-22 | 1996-07-31 | Bellanca Aircraft Corporation, Cessna Aircraft Company CH-300 Pacemaker, 120, 140, 140A and 360 more | Full Flow Engine Oil Adapter | Engine |
| 95-09-13 | 1995-06-14 | Cessna Aircraft Company 402C, 404, 414A, 421C and 1 more | Fuel Inlet Float Valve | Engine |
| 75-23-08 R5 | 1986-11-04 | Cessna Aircraft Company, The, Cessna Aircraft Company 320 Model or Series (all), 340 Model or Series (all),... and 11 more | Engine Exhaust System | Engine |
Source: FAA airworthiness directives (final rules and emergency directives) from the FAA's Dynamic Regulatory System, as of October 29, 2026. The FAA's text is the authority; this site adds the links to models, engines and the register. Related: aircraft systems · type certificates.