Project 10073 Record Card and Air Intelligence Information Report — Mayaguez, Puerto Rico, 14 May 1952

On 14 May 1952, between 1900 and 1930 hours, five witnesses observed two spherical, orange, sun-like objects off the coast of Mayaguez, Puerto Rico. The observation was conducted from a high bluff overlooking the ocean, using Zeiss Jena 18 x 50 field glasses. According to the report, one object remained stationary while the second object darted around at a high rate of speed before returning to the vicinity of the first. The witnesses noted that the movement was not visible to the naked eye and could only be perceived through the binoculars. No exhaust, sound, or conventional propulsion was observed. The weather was clear with alto-stratus clouds, and the sighting appeared to be situated near the second layer of clouds. The witnesses included a local lawyer, an ex-Air Force pilot, a college student, and two other individuals. The investigating officer, Captain G. D. McAdams of the 55th Strategic Reconnaissance Wing, interviewed the witnesses and concluded that they were individuals of sound judgment and integrity, not prone to mass hysteria. An attempt to photograph the objects was made, but the resulting negative revealed nothing. Despite an on-site investigation, no natural explanation could be found for the sighting, and the military concluded that it was impossible to determine if the incident held any significance for the ongoing investigation into 'flying saucers'.