Type certificate E-285
Held today by Lycoming Engines, earlier by Avco Corporation, Lycoming Division\Textron Lycoming, Avco Corporation. It covers 3 models. Last revised November 4, 2010 (revision 3). 7 approved modifications build on it.
Models under this certificate 3
SO-580-A1B, SO-580-A1A, VSO-580-A1A
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 7 · 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/E-285.json.