N281SD was built in 1980 and has seen service with Heliservicio in Mexico as XA-SZD till early 1996. It continued with Air Logistics as N24HS, just to be registered in Mexico again as XA-AAC sometimes later. Became C-FTXU with Eagle Copters Maintenance in March 2004 and from November 2005 started to serve with it's current operator SDFD as N800DM. It appears to have been re-registered to N281SD on January 14, 2020, just a few days before very friendly staff at this SDFD Air Operations base did let me take a picture of this beautiful bird.