Project 10073 Record Card: Sighting in Fontana, California, 21 August 1956

This document is a Project 10073 record card detailing a UFO sighting reported by two civilian witnesses in Fontana, California, on August 21, 1956. The witnesses, a man and woman aged 45, observed a single round, red object that appeared to be the size of a basketball held at arm's length. The object was described as having a tail and was seen moving in an easterly direction for approximately two minutes before disappearing into a fog. The report notes that the observation occurred at night, specifically at 0645Z. The investigation was conducted by the 751st ACWRON, with Lt. John L. Obourn serving as the Duty Director. While the initial field report listed the cause as 'undetermined,' the official comments section provides a definitive assessment, stating that the description of the sighting indicates the object was likely a jet aircraft, with the observed 'tail' being the jet's contrail. The report confirms that there were no photographs taken and no radar contact made during the event. The document includes a teletype message sent from the 751st ACWRON to various military commands, including the Air Tech Intelligence Center at Wright-Patterson AFB, summarizing the details of the sighting.