Project 10073 Record Card — Flint, Michigan, 5 September 1956

This document consists of a Project 10073 record card and an associated teletype report regarding an unidentified aerial phenomenon observed in Flint, Michigan, on 5 September 1956. The sighting, reported by a civilian source, involved a single object observed for approximately one hour. The witness described the object as changing shape from a triangle to an umbrella, noting that it was the size of a baseball, green in color, and possessed a tail. The object was observed moving from the north to the south. The teletype report, transmitted to various military commands including the Air Technical Intelligence Center at Wright-Patterson Air Force Base, confirms the details of the sighting and provides additional environmental context, noting clear weather conditions with a temperature of 55 degrees. Despite the detailed description provided by the witness, the official evaluation concluded that the case provided insufficient data for a definitive identification. The investigating authorities noted that while the report was poor, it did suggest the possibility of a balloon. However, because wind data was not included in the report, the case was ultimately classified as having insufficient data for a formal evaluation.