🇺🇸 USAF — Project Blue Book
In July 1954, a witness in Phoenix, Arizona, observed a disc-shaped object that appeared larger or higher than a B-47 at 40,000 feet. The sighting lasted three minutes and no sound or distinctive features were reported. The witness noted that the object left no trail and no unusual activity was reported by the B-47s in the area. The information was passed on to Luke AFB, but no further sightings or unusual activity were confirmed.
The report includes detailed weather data and environmental descriptions, though no photos or radar were used. Although the possibility of a balloon or aircraft was considered, no definitive conclusion was reached. This case is part of many reports from the time that reflect the uncertainty and interest in unidentified flying objects.