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. 20,191 are on file, 291 of them issued as emergencies, 283 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.
7 orders on instruments and avionics on the Piper PA-28 Cherokee, Warrior, Archer and Arrow family newest first
The list behind a number on the Piper PA-28 Cherokee, Warrior, Archer and Arrow page. Every order.
| Order | In force | Applies to | What it is about | System |
|---|---|---|---|---|
| 2009-05-05 | 2009-04-03 | Cessna Aircraft Company, Cirrus Design Corporation 441, LC41-550FG, LC42-550FG, SR20 and 20 more | Primary Flight Displays | Instruments and avionics |
| 2008-06-28 R1 | 2008-04-10 | Avidyne Corporation, Cessna Aircraft Company Primary Flight Displays, 441, LC41-550FG, LC42-550FG and 21 more | Primary Flight Displays (PFDs) | Instruments and avionics |
| 2008-06-28 | 2008-04-10 | Triton Aerospace LLC, Cessna Aircraft Company A500, 441, LC41-550FG, LC42-550FG and 16 more | Primary flight display | Instruments and avionics |
| 2006-03-08 | 2006-03-10 | Aero Advantage 14-19, 14-19-2, 14-19-3, 17-30 and 298 more | Vacuum pumps | Instruments and avionics |
| 2005-25-08 | 2006-01-23 | B-N Group Ltd., Cessna Aircraft Company BN-2A, 172, 180, 180E and 21 more | Electronic Flight Information System (EFIS) | Instruments and avionics |
| 2005-01-19 | 2005-02-23 | GARMIN International Inc., 328 Support Services GmbH GTX 330D, GTX 330, GTX 33D, GTX 33 and 829 more | Mode S transponders | Instruments and avionics |
| 2001-23-17 | 2001-12-28 | Cessna Aircraft Company, FS 2001 Corp. 172, 182, 206, 208 and 208 more | GNS 430 units | Instruments and avionics |
Source: FAA airworthiness directives (final rules and emergency directives) from the FAA's Dynamic Regulatory System, as of October 8, 2026. The FAA's text is the authority; this site adds the links to models, engines and the register. Related: aircraft systems · type certificates.