LOUISVILLE, Ky. (WDRB) — Weeks after a UPS plane crashed near Louisville Muhammad Ali International Airport, airport firefighters offered a rare look inside the highly specialized emergency response that unfolded in the minutes after the aircraft went down. Chief Joshua Grimes, who has served with the Louisville Airport Authority for 20 years, said the crash was unlike anything he had ever experienced. “This is definitely the worst incident I've ever responded to in my 30 years,” Grimes said.