Project 10073 Record — Chicago, Illinois, 29 October 1969

This document is a collection of records related to a UFO sighting reported in Chicago, Illinois, on 29 October 1969. The report, filed under Project 10073 of Project Blue Book, details a civilian report of a single object observed for 65 minutes moving from East to West. The investigation was conducted by an officer at Chanute Air Force Base following a referral from the 'Action Line' column of the Chicago Today newspaper. The investigating officer expressed significant skepticism regarding the witness's account, citing internal contradictions. Specifically, the witness provided conflicting estimates of the duration of the sighting (65 minutes in a letter versus 90 minutes via telephone) and claimed not to have observed the moon, which was nearly full and at a high elevation at the time. Furthermore, the investigator noted that if the object had been as large and low as the witness described, it would have been visible to personnel at O'Hare International Airport and Glenview NAS, neither of which had any record of such an event. The investigator concluded that the report contained 'conflicting data' and suggested that the witness might have been influenced by their own imagination or perhaps observed a charter shuttle helicopter. The file includes correspondence between the Air Force and the newspaper, as well as various weather maps and administrative records related to the investigation process.