Type certificate 4A24
Held today by Atlantic Coast Seaplanes LLC, earlier by Mckinnon Enterprises, Inc.\Aero Planes, LLC. It covers 4 models. Last revised April 14, 2008 (revision 9). 45 approved modifications build on it.
Models under this certificate 4
G-21E, G-21D, G-21C, G-21G
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 45 · 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/4A24.json.