Investigation of Unidentified Aircraft — Nogales, Arizona, 24 December 1954

This document is an Air Intelligence Information Report from the 24th Air Division (Defense) regarding an unidentified aircraft sighting on December 24, 1954, near Nogales, Arizona. The incident involved an F-86D pilot, 1st Lt. Kenneth C. Hite, who was flying a routine Combat Air Patrol mission. At approximately 0519Z, Hite reported visual and brief radar contact with an unidentified object that appeared as a hazy glow with red and green flashes. The object remained 5,000 to 10,000 feet above the pilot and exhibited unorthodox maneuvering, eventually disappearing in a southerly direction toward Mexico or Central America. Three separate interception attempts were made, all unsuccessful. The ground controller, 1st Lt. Joe F. Sullivan of the 684th AC&W Squadron, reported that the object was never detected by ground radar, though both the pilot and the controller noted momentary radar interference during the engagement. The report includes detailed logs of the F-86D's flight path and the subsequent investigation. The official conclusion suggests the possibility that the object was an unauthorized aircraft over U.S. territory, though the report also considers the potential for celestial phenomena or radar interference. The investigating officer, 2nd Lt. Russell T. Newman, noted that the primary intelligence concern highlighted by this event is the vulnerability of U.S. detection and interception capabilities along the southern border. The document includes an overlay of the WAC 471 chart showing the tracks of the interceptor and the unidentified object, as well as supplementary statements from the pilot and the ground controller. The report was classified as Secret and subject to periodic downgrading.