Unknown UAP Encounter, 1948 — USAAF Box 7 #101
Incident #101 of the 1947-era U.S. Army Air Forces UFO incident summaries (Box 7 of file 38_143685): an unspecified observer reported an unidentified flying object near Unknown.
Background
Incident #101 of the U.S. Army Air Forces “Check-List - Unidentified Flying Objects” series, archived in Box 7 of file 38_143685 and released by the Department of War on May 8, 2026 as part of the Presidential Unsealing and Reporting System for UAP Encounters (PURSUE). The summary records that an unspecified observer reported a sighting near Unknown.
What the form records
According to the form, the sighting occurred on is the seeming of a relationship between the positions of the moon for the two phenomena: In the former case the moon was at the date of phenomenon, about 7%, 63 before the positionof First Quarter; on the second case it was about 8%.73 beyond the position of first quarter. Since the Boise objec, at 50. Checked but no planes missing. A jor ; » ©@ ‘ e@ a but slightly east. Suddenly, about 1 and 1/2 minutes after he had seen the - flash, there was a terrific explosion ani jar, shaking the ground and causing _ the windows all around to rattle. Following the explosion, there were several ’ low.
Status of the case
All records released under the PURSUE program are designated unresolved by the All-domain Anomaly Resolution Office. The federal government has not concluded these 1947-era incidents were anomalous, has not concluded 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 active over the U.S. Southwest in 1947), atmospheric optical phenomena, and astronomical objects.