Air Force Reserve, State Fire department exercise Published July 17, 2017 By 2nd Lt. Elizabeth C. Andreas-Feeney 624th Regional Support Group JOINT BASE PEARL HARBOR-HICKAM, Hawaii -- Reserve Citizen Airmen use hoses to extinguish a simulated aircraft fire during a joint live-fire exercise between the Hawaii State Fire Department and the Air Force Reserve's 624th Regional Support Group July 9, 2017 at Joint Base Pearl Harbor-Hickam, Hawaii. More than 40 fire fighters participated in the exercise which focused on utilizing proper techniques to extinguish an aircraft fire. Located on Oahu and a component of the Air Force Reserve, the 624th Civil Engineering Squadron is comprised of three PRIME BEEF teams, seven Firefighting teams and one Readiness team.