Kenneth Arnold UFO Sighting, Portland, Oregon (July 27, 1947)
A first saucer wave case from Portland, Oregon. Captain Davidson and Lieutenant Brown interviewed several pilots who had previously reported seeing flying discs, including Kenneth Arnold.
Background
On July 27, 1947, in Portland, Oregon, U.S. government investigators recorded an unidentified-object incident later released to the public on May 8, 2026 as part of the Presidential Unsealing and Reporting System for UAP Encounters (PURSUE). The incident is one of the first wave of “flying saucer” reports that swept the United States after the Kenneth Arnold sighting of June 1947 and the Roswell incident of July 1947. The case was filed with the Federal Bureau of Investigation, whose Knoxville, Albuquerque, Los Angeles, and other field offices routed UFO reports to headquarters under the Bureau’s standing protocols for the protection of vital installations.
What the document records
Captain Davidson and Lieutenant Brown interviewed several pilots who had previously reported seeing flying discs, including Kenneth Arnold. The interviews took place while the officers were in Portland, and were part of an Air Force investigation into the reports. The Air Force appeared to be investigating to disprove the reports, believing the discs were not of AAF origin.
The number of witnesses is not specified in the released document.
Type of case
The case is a visual sighting reported by ground or air observers.
Status
All records released under the PURSUE program are designated unresolved by the All-domain Anomaly Resolution Office (AARO) by default. The federal government has not concluded that the events were anomalous, has not concluded that they were conventional, and has not ruled out either possibility. Conventional candidates for sightings of this period include experimental aircraft, weather balloons (especially the Project Mogul series in the late 1940s), atmospheric optical phenomena such as sundogs and lenticular clouds, and astronomical objects including Venus, the Moon, and meteors near the horizon.