Project 10073 Record Card — Chihuahua, Mexico, 5 March 1954

This document consists of a Project 10073 record card and associated correspondence regarding a UFO sighting in Chihuahua, Mexico, on March 5, 1954. The witness, identified as J. Valenzueia, reported observing a blue object that emitted a white gleam of light. The witness initially mistook the object for a meteor or colored lights. According to the report, the object glided away toward the south, accompanied by a screeching sound, and remained visible for approximately three minutes before disappearing. The documentation includes a cover letter from Colonel Roberts P. Johnson, Jr., of the 5th District Office of Special Investigations, forwarding the translated letters from the witness to the Air Technical Intelligence Center at Wright-Patterson Air Force Base. The official Air Force evaluation of the incident was dismissive; the record card explicitly notes that a second letter from the witness indicated they had 'psychological problems,' leading the military to classify the entire report as unreliable. The file also contains a strange, fragmented second letter from the witness, which references an 'atomic experiment' and events in the 'spiritual world,' further contributing to the military's assessment of the witness's credibility. The documents were eventually downgraded from their original unclassified status under Department of Defense Directive 5200.10.