Type certificate E-229
Held today by Lycoming Division Avco Corporation, earlier by Avco Lycoming\Textron Lycoming, Avco Corporation, Avco Lycoming\Textron Lycoming, Avco Corporation, Avco Lycoming\Textron Lycoming, Avco Corporation, Avco Lycoming\Textron Lycoming, Avco Corporation, Avco Lycoming\Textron Lycoming, Avco Corporation, Avco Lycoming\Textron Lycoming, Avco Corporation, Avco Lycoming\Textron Lycoming, Avco Corporation, Avco Lycoming\Textron Lycoming, Avco Corporation, Avco Lycoming\Textron Lycoming, Avco Corporation, Avco Lycoming\Textron Lycoming, Avco Corporation. It covers 10 models; about 2,236 aircraft on the U.S. register are built to the designs it names. Last revised January 31, 2020 (revision 14). 9 FAA orders name its designs, and 34 approved modifications build on it.
Models under this certificate 10
O-290-D2, O-290-D, O-290-B, O-290-A, O-290-CP, O-290-AP, O-290-D2A, O-290-C, O-290-D2C, O-290-D2B
Engine series
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 9 · newest first
Approved modifications 34 · 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-229.json.