Type certificate H4NE
Held today by Sikorsky Aircraft Corporation, earlier by United Technologies Corporation. It covers 2 models; about 29 aircraft on the U.S. register are built to it. Last revised February 27, 2017 (revision 6). 11 FAA orders name its designs, and 4 approved modifications build on it.
Models under this certificate 2
S-70C(M1), S-70C(M)
On this site
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 11 · newest first
2020-12-032020-22-19 · Main Rotor Head--Main Rotor Spindle Cuff · rotorcraft systems
2020-03-132020-02-17 · Tail Rotor Blades · rotorcraft systems
2014-02-252013-25-13 · Main Rotor Hub, Main Rotor Mast/Swashplate, Main Rotor Gearbox,
Engine/Transmission Coupling, Tail... · rotorcraft systems
2014-02-102013-26-13 · Fatigue failure of an engine rotor part · engine
2012-12-142012-23-13 · Engine Oil Cooler, Main Rotor Blades, Tail Rotor Head, Tail Rotor Blades, Tail Rotor Control System, Main... · rotorcraft systems
2012-11-302012-22-14 · Tail Rotor Gearbox · rotorcraft systems
2010-12-222010-23-24 · Gear · rotorcraft systems
2002-06-242002-11-10 · Jackpad Mounting Bolt Retention Nut · landing gear
Approved modifications 4 · companies holding the most
Source: FAA type certificate data sheets (Dynamic Regulatory System); register counts from the FAA register of October 7, 2026. Connections as data: /graph/certificate/H4NE.json.