Type certificate A00018AT
Held today by Honda Aircraft Company LLC. It covers 1 model; about 5 aircraft on the U.S. register are built to it. Last revised December 15, 2025 (revision 11). 12 FAA orders name its designs, and 5 approved modifications build on it.
Models under this certificate 1
HA-420
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 12 · newest first
2026-07-022026-10-02 · Fuselage Main, Plate/Skin · cabin, seats and restraints
2026-05-082026-06-71 · Trailing Edge Flap Actuator · flight controls
2026-02-172026-01-01 · Aileron Control System · flight controls
2023-06-162023-11-03 · Windshield/Door Rain/Ice Removal · heating, ice protection and utility systems
2022-09-222022-18-03 · Windshield/Door Rain/Ice Removal · heating, ice protection and utility systems
2022-04-182022-05-13 · Windshield/Door Rain/Ice Removal · electrical power
2021-11-192021-22-12 · Trailing Edge Flap Actuator · flight controls
2020-04-062020-04-14 · Landing Gear · landing gear
Approved modifications 5 · 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/A00018AT.json.