Built in 1980, this Blackhawk is ex US Army 80-23499. It was registered as N160BQ before joining Coulson-Unical as N60CU. Being an ex military UH-60A, this airframe is in the FAA "Restricted" category and as such is limited to aerial firefighting, forestry work and pest control, all of which are in the interest of the general public (public service). The two companies Coulson & Unical joint forces in 2019 and created a joint venture to market and operate UH-60 and CH-47's, mainly in the fire fighting business.