Project 10073 Record: UFO Observation, 16 or 17 June 1967

This document collection details an investigation by the Aerial Phenomena Branch of the U.S. Air Force into a UFO sighting reported in Chicago, Illinois, on the night of June 16-17, 1967. The primary witness, a civilian, reported observing an object at approximately 10:45 PM that appeared to be convex on the top and bottom with squared-off ends, emitting a uniform orange-red glow similar to a neon sign. The witness described the object as moving at a moderate to slow speed, traveling between north and south points before eventually making a sudden right-angle turn toward the lake and disappearing. The witness noted that the object was well below the cloud ceiling and was not an airplane. The Air Force initiated an investigation, contacting Pal-Waukee Airport to determine if any advertising aircraft were in the area at the time of the sighting. A representative from the airport responded on October 7, 1967, stating that their 'Nite Lite Sign,' which is mounted on a Cessna 172, was not in operation during June 1967. Additionally, an employee at Pal-Waukee Airport provided a statement regarding a separate telephone call received from a woman in the Lake Zurich area who had observed a similar lighted object in the sky to the southeast. The employee confirmed seeing the object from the second floor of the airport's administration building, describing it as having the glow of a regular light bulb, specifically a warm reddish-yellow color, and remaining in a stationary position for 15 to 30 minutes. The official project record for the incident lists the conclusion as 'Probable (AIRCRAFT/with advertising sign)', despite the lack of confirmation from the local airport.