Type certificate P31EA
Held today by Hartzell Propeller LLC, earlier by Trw Hartzell Propeller. It covers 5 models. Last revised April 2, 2025 (revision 16). 9 approved modifications build on it.
Models under this certificate 5
HC-F3YR-2, HC-F3YK-2, HC-M3YR-1, HC-F3YK-1, HC-F3YR-1
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 9 · 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/P31EA.json.