The U.S. aircraft register, updated daily
FAA orders · 20,214 airworthiness directives on file

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.

4 orders on engine on the Cessna 525 CitationJet (CJ series) family newest first

The list behind a number on the Cessna 525 CitationJet (CJ series) page. Every order.

OrderIn forceApplies toWhat it is aboutSystem
2013-08-05 2013-05-30 Cessna Aircraft Company 525 Air ConditioningEngine
2010-12-01 2010-07-22 Cessna Aircraft Company 525A EngineEngine
2009-24-13 2009-12-15 Cessna Aircraft Company 525A Engine exhaustEngine
2005-17-11 2005-10-07 Cessna Aircraft Company 525, 525A, 525B Fire extinguisher bottlesEngine

Source: FAA airworthiness directives (final rules and emergency directives) from the FAA's Dynamic Regulatory System, as of October 28, 2026. The FAA's text is the authority; this site adds the links to models, engines and the register. Related: aircraft systems · type certificates.