Project Blue Book Case File
Portland, OregonJuly 1952
Summary
The Portland case file covers a sequence of unidentified-aerial-object reports filed with the Portland Police Bureau and the Civilian Aeronautics Administration office at Portland-Columbia Airport over the afternoon and evening of July 4, 1952.
The earliest reports came from off-duty Portland Police officers stationed at separate locations across the city, who within roughly an hour of one another reported brightly-lit, disc-shaped objects holding position or moving in loose formation in the sky north of Portland. As reports continued to come in over the police radio, the bureau began consolidating witness names and dispatching officers to corroborate. Civilian witnesses called in from across the metro area, from Vancouver, Washington across the Columbia River, and from suburbs to the east of the city.
A Pan American Airways DC-4 inbound to Portland from Honolulu reported visual contact with a glowing object passing the aircraft at altitude. Operators at McChord Air Force Base, north of Portland near Tacoma, scrambled F-86 fighter jets to investigate, although the interceptors did not establish radar contact before the objects were no longer visible from the ground.
The Portland sightings became one of the first well-publicized incidents of what would come to be known as the 1952 UFO wave, a nationwide spike in unidentified-object reports during the summer of that year that culminated in the radar-and-visual incidents over Washington National Airport later in July. Project Blue Book investigators visited Portland and McChord in the weeks following and consolidated the witness statements, the police bureau's call log, and the airline crew's report into a single case file.
The Air Force's eventual classification on the Portland incidents was "unknown," with internal notes acknowledging that the volume and consistency of the witness accounts could not be reconciled with conventional aircraft, weather phenomena, or the kind of misidentification typically found in single-witness reports. The case file documents repeated debate among investigators about how to handle the Portland incidents publicly, given the involvement of multiple uniformed police officers and a commercial airline crew.
The full case file (209 scanned pages of original police bureau call logs, individual witness statements, the Pan American crew's report, McChord AFB operational records for the July 4 scramble, and follow-up correspondence from Project Blue Book investigators) is reproduced below as held by the National Archives.
Reported location
Portland, Oregon
Date of incident
July 1952
State / country
OR / US
Page count
209 scanned pages
USAF evaluation
unknown
Microfilm
T1206, Roll 11