Type certificate A-737
Held today by Stol Aviation LLC, earlier by Arctic Aircraft Company, Inc.\Nikiski Marine\Call Aircraft\Harlow Aircraft\Interstate Aircraft\Interstate Engineering & Type Design Company, INC.. It covers 4 models; about 104 aircraft on the U.S. register are built to it. Last revised October 31, 2007 (revision 9). 65 approved modifications build on it.
Models under this certificate 4
S-1A-90F, S-1A, S-1A-85F, S-1A-65F
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 0 · newest first
None in the current files.
Approved modifications 65 · 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-737.json.