Type certificate H4SW
Held today by Bell Textron INC., earlier by Bell Helicopter Textron\Bell Helicopter Textron, INC.. It covers 4 models; about 146 aircraft on the U.S. register are built to the designs it names. Last revised April 2, 2026 (revision 42). 111 FAA orders name its designs, and 525 approved modifications build on it.
Models under this certificate 4
412CF, 212, 412EP, 412
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 111 · newest first
2026-05-112026-08-10 · Passenger compartment equipment · cabin, seats and restraints
2025-05-152025-07-01 · Air Data Computer · instruments and avionics
2024-12-052024-20-07 · Emergency Equipment; Emergency Flotation Section · airframe structure
2024-11-082024-16-19 · Rotorcraft Tail Boom · rotorcraft systems
2024-10-112024-19-17 · Rotorcraft flight control · flight controls
2024-09-042024-16-01 · Fuselage structure · rotorcraft systems
2023-06-222023-11-07 · Ground Proximity System · instruments and avionics
2022-12-272022-20-14 · Main Rotor Gearbox · rotorcraft systems
Approved modifications 525 · 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/H4SW.json.