Light over Santa Maria · Portugal
Investigated by a competent body and left unresolved. The rarest grade, and never awarded by us — only recorded.
The report, as filed
Santa Maria, Azores Islands. 9:45 p.m. Witness: airport guard. One 10'x5' light metallic blue, pecan-shaped object with a clear glass or plastic nose having a door, and with poles or aerials on the nose. Humming or whining, it hovered, landed vertically, 50' away. A blond man, 5' 10" tall appeared, spoke in a strange language, patted the guard on the shoulder, got in the object, hooked up his harness, pushed a button, took off with the object's nose pointed up, then leveled off and climbed vertically. Sighting lasted 2-3 minutes.
Held as-reported from Project Blue Book, United States Air Force. Witness text is preserved verbatim, including its spelling; nothing is edited beyond formatting.