Project Blue Book Case #2100. On September 16, 1952, an unidentified object was observed over Warner Robins, Georgia — the community adjacent to Robins Air Force Base. This was the first of two Blue Book unknowns from Robins AFB, predating the 1957 case (Case #5419) by five years.
Robins AFB was one of the Air Force's largest logistics and maintenance depots, home to the Warner Robins Air Materiel Area. The base handled overhaul and repair of aircraft, engines, and electronic systems for the entire southeastern United States. Its personnel had hands-on familiarity with virtually every aircraft type in the Air Force inventory.
September 1952 was during the great wave's declining phase. Warner Robins' contribution of an unknown during this period extended the geographic spread of unexplained cases across the military's base network. The pattern of unknowns at logistics depots — including Olmsted, Kelly, and McClellan — was among the trends Blue Book analysts noted.
The object did not match any aircraft associated with the base's extensive maintenance and flight test operations. All scheduled flights were accounted for. The case was classified "Unknown."