Project 10073 Record: Sighting Report - Renton, Washington, 18 April 1966

This document contains a collection of records, correspondence, and sighting reports regarding an Unidentified Aerial Phenomenon (UAP) observed near Renton, Washington, on 18 April 1966. The primary witness, a civilian, reported observing a metallic object with a silvery dome and rotating lights, including a red light in front, a green light in the back, and an amber light on the dome. The object was described as being roughly the size of a silver dollar at arm's length and was seen at a low altitude near an aircraft. The witness noted that the object appeared to be 'round on the base' and 'silvery' like a diamond in a ring. The witness also reported hearing a 'terrific noise' from the airplane, but no sound from the UAP itself. The sighting occurred during a period of several weeks in which residents near Lake McDonald reported hearing persistent 'beep-beep-beep' sounds and observing strange lights. The Air Force, specifically the Foreign Technology Division (FTD) and Project Blue Book, investigated the report. Major Hector Quintanilla, Jr., Chief of Project Blue Book, corresponded with the witnesses, requesting they complete FTD Form 164 to provide more detailed information for a scientific evaluation. The official conclusion recorded in the project file was that the data was insufficient for a definitive evaluation, noting that the object was a 'possible aircraft, however, additional info is needed.' The file includes handwritten notes from the witnesses describing their experiences, including a 'mountain jeep trip' where they encountered dome-shaped structures, and their frustration with the lack of official explanation. The witnesses expressed a sincere belief in what they saw, despite being labeled as 'nuts' by others. The documentation also includes a newspaper clipping from The Seattle Times dated 19 April 1966, which details the 'beep-beep-beep' phenomenon and the residents' concerns.