Type certificate P-917
Held today by Trw Hartzell Propeller. It covers 3 models. Last revised September 15, 1982 (revision 5). 3 approved modifications build on it.
Models under this certificate 3
HC-D2X20-7, HC-D2X20-8, HC-D2X20-3
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 3 · companies holding the most
Source: FAA type certificate data sheets (Dynamic Regulatory System); register counts from the FAA register of October 8, 2026. Connections as data: /graph/certificate/P-917.json.