Project 10073 Records and Correspondence — Philadelphia, Pennsylvania, April 1966

This document collection contains reports and correspondence regarding multiple UFO sightings in the Philadelphia, Pennsylvania area during April 1966. The records include a Project 10073 form detailing a sighting on April 5, 1966, where a witness observed an oval object with three red lights and wing-like extensions hovering 500 feet above the ground. The official conclusion for this incident was 'AIRCRAFT,' with the analysis suggesting the object's apparent hover was an illusion caused by the observer's moving vehicle. A second report from the 913th Troop Carrier Group details two additional sightings. On April 9, 1966, Miss Regina McFadden reported a circular, bright orange object larger than the sun that hovered over buildings in North Philadelphia for approximately ten minutes. On April 12, 1966, Mrs. Robert Curran reported a flying object that caused a 'very disturbing noise' and featured red and white lights. The Air Force contacted the Flight Operations section of Willow Grove Naval Air Station, which confirmed no aircraft were in the area at that time, though they noted the presence of industrial plants in the region that maintain test aircraft. The file also includes a questionnaire completed by a witness and correspondence from Major Hector Quintanilla, Jr., Chief of Project Blue Book, requesting further information from a witness due to insufficient data for evaluation. A separate Project 10073 record for an April 9, 1966, sighting notes 'CONFLICTING DATA' regarding the time and duration of the event, with a handwritten note stating that more technical data was needed before any evaluation could be made.