Type certificate A-725
Held today by Fs 2001 CORP., earlier by Piper Aircraft, INC.. It covers 6 models; about 294 aircraft on the U.S. register are built to it. Last revised March 30, 2001 (revision 4). 12 FAA orders name its designs, and 109 approved modifications build on it.
Models under this certificate 6
J5B (Army L-4G), AE-1, J5A-80, J5A (Army L-4F), HE-1, J5C
On this site
The data sheet on the FAA's site: the approved engines and propellers, weights, speeds and limits for each model.
FAA orders on these designs 12 · newest first
2025-03-202025-02-11 · Rudder Structure · flight controls
2015-06-032015-08-04 · Wings · landing gear
2014-01-1499-01-05 R1 · Wings · landing gear
2006-03-102006-03-08 · Vacuum pumps · instruments and avionics
2001-12-282001-23-17 · GNS 430 units · instruments and avionics
1999-02-0899-01-05 · Wing Lift Struts or Forks · landing gear
1996-06-0796-09-06 · Air Filter Assemblies · airframe structure
1993-07-0993-10-06 · Corroded Wing Lift Struts or Cracked Forks · airframe structure
Approved modifications 109 · companies holding the most
Source: FAA type certificate data sheets (Dynamic Regulatory System); register counts from the FAA register of October 5, 2026. Connections as data: /graph/certificate/A-725.json.