Hiller OH-23D registrations

2 Hiller OH-23D aircraft on the FAA register (FAA model OH-23D), newest first.

N-numberYearAircraftBased
N606CD1959Hiller OH-23DMineral Wells, TX
N961121958Hiller OH-23DSalem, VA

Source: FAA Aircraft Registry, October 2026. Each N-number links to its aircraft page with registration record, history and accident data.